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Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net

Browse Source 
Cross-merge networking fixes after downstream PR.

No conflicts.

Adjacent changes:

net/core/page_pool_user.c
  0b11b1c5c3 ("netdev: let netlink core handle -EMSGSIZE errors")
  429679dcf7 ("page_pool: fix netlink dump stop/resume")

Signed-off-by: Jakub Kicinski <kuba@kernel.org>
This commit is contained in:
Jakub Kicinski 2024-03-07 10:19:05 -08:00
commit e3afe5dd3a
233 changed files with 2712 additions and 1421 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
Documentation/devicetree/bindings/net/renesas,ethertsn.yaml
View File

@ -65,9 +65,11 @@ properties:
rx-internal-delay-ps:
enum: [0, 1800]
default: 0
tx-internal-delay-ps:
enum: [0, 2000]
default: 0
'#address-cells':
const: 1

2
Documentation/driver-api/dpll.rst
View File

@ -545,7 +545,7 @@ In such scenario, dpll device input signal shall be also configurable
to drive dpll with signal recovered from the PHY netdevice.
This is done by exposing a pin to the netdevice - attaching pin to the
netdevice itself with
``netdev_dpll_pin_set(struct net_device *dev, struct dpll_pin *dpll_pin)``.
``dpll_netdev_pin_set(struct net_device *dev, struct dpll_pin *dpll_pin)``.
Exposed pin id handle ``DPLL_A_PIN_ID`` is then identifiable by the user
as it is attached to rtnetlink respond to get ``RTM_NEWLINK`` command in
nested attribute ``IFLA_DPLL_PIN``.

1
Documentation/virt/hyperv/index.rst
View File

@ -10,3 +10,4 @@ Hyper-V Enlightenments
overview
vmbus
clocks
vpci

316
Documentation/virt/hyperv/vpci.rst Normal file
View File

@ -0,0 +1,316 @@
.. SPDX-License-Identifier: GPL-2.0
PCI pass-thru devices
=========================
In a Hyper-V guest VM, PCI pass-thru devices (also called
virtual PCI devices, or vPCI devices) are physical PCI devices
that are mapped directly into the VM's physical address space.
Guest device drivers can interact directly with the hardware
without intermediation by the host hypervisor. This approach
provides higher bandwidth access to the device with lower
latency, compared with devices that are virtualized by the
hypervisor. The device should appear to the guest just as it
would when running on bare metal, so no changes are required
to the Linux device drivers for the device.
Hyper-V terminology for vPCI devices is "Discrete Device
Assignment" (DDA). Public documentation for Hyper-V DDA is
available here: `DDA`_
.. _DDA: https://learn.microsoft.com/en-us/windows-server/virtualization/hyper-v/plan/plan-for-deploying-devices-using-discrete-device-assignment
DDA is typically used for storage controllers, such as NVMe,
and for GPUs. A similar mechanism for NICs is called SR-IOV
and produces the same benefits by allowing a guest device
driver to interact directly with the hardware. See Hyper-V
public documentation here: `SR-IOV`_
.. _SR-IOV: https://learn.microsoft.com/en-us/windows-hardware/drivers/network/overview-of-single-root-i-o-virtualization--sr-iov-
This discussion of vPCI devices includes DDA and SR-IOV
devices.
Device Presentation
-------------------
Hyper-V provides full PCI functionality for a vPCI device when
it is operating, so the Linux device driver for the device can
be used unchanged, provided it uses the correct Linux kernel
APIs for accessing PCI config space and for other integration
with Linux. But the initial detection of the PCI device and
its integration with the Linux PCI subsystem must use Hyper-V
specific mechanisms. Consequently, vPCI devices on Hyper-V
have a dual identity. They are initially presented to Linux
guests as VMBus devices via the standard VMBus "offer"
mechanism, so they have a VMBus identity and appear under
/sys/bus/vmbus/devices. The VMBus vPCI driver in Linux at
drivers/pci/controller/pci-hyperv.c handles a newly introduced
vPCI device by fabricating a PCI bus topology and creating all
the normal PCI device data structures in Linux that would
exist if the PCI device were discovered via ACPI on a bare-
metal system. Once those data structures are set up, the
device also has a normal PCI identity in Linux, and the normal
Linux device driver for the vPCI device can function as if it
were running in Linux on bare-metal. Because vPCI devices are
presented dynamically through the VMBus offer mechanism, they
do not appear in the Linux guest's ACPI tables. vPCI devices
may be added to a VM or removed from a VM at any time during
the life of the VM, and not just during initial boot.
With this approach, the vPCI device is a VMBus device and a
PCI device at the same time. In response to the VMBus offer
message, the hv_pci_probe() function runs and establishes a
VMBus connection to the vPCI VSP on the Hyper-V host. That
connection has a single VMBus channel. The channel is used to
exchange messages with the vPCI VSP for the purpose of setting
up and configuring the vPCI device in Linux. Once the device
is fully configured in Linux as a PCI device, the VMBus
channel is used only if Linux changes the vCPU to be interrupted
in the guest, or if the vPCI device is removed from
the VM while the VM is running. The ongoing operation of the
device happens directly between the Linux device driver for
the device and the hardware, with VMBus and the VMBus channel
playing no role.
PCI Device Setup
----------------
PCI device setup follows a sequence that Hyper-V originally
created for Windows guests, and that can be ill-suited for
Linux guests due to differences in the overall structure of
the Linux PCI subsystem compared with Windows. Nonetheless,
with a bit of hackery in the Hyper-V virtual PCI driver for
Linux, the virtual PCI device is setup in Linux so that
generic Linux PCI subsystem code and the Linux driver for the
device "just work".
Each vPCI device is set up in Linux to be in its own PCI
domain with a host bridge. The PCI domainID is derived from
bytes 4 and 5 of the instance GUID assigned to the VMBus vPCI
device. The Hyper-V host does not guarantee that these bytes
are unique, so hv_pci_probe() has an algorithm to resolve
collisions. The collision resolution is intended to be stable
across reboots of the same VM so that the PCI domainIDs don't
change, as the domainID appears in the user space
configuration of some devices.
hv_pci_probe() allocates a guest MMIO range to be used as PCI
config space for the device. This MMIO range is communicated
to the Hyper-V host over the VMBus channel as part of telling
the host that the device is ready to enter d0. See
hv_pci_enter_d0(). When the guest subsequently accesses this
MMIO range, the Hyper-V host intercepts the accesses and maps
them to the physical device PCI config space.
hv_pci_probe() also gets BAR information for the device from
the Hyper-V host, and uses this information to allocate MMIO
space for the BARs. That MMIO space is then setup to be
associated with the host bridge so that it works when generic
PCI subsystem code in Linux processes the BARs.
Finally, hv_pci_probe() creates the root PCI bus. At this
point the Hyper-V virtual PCI driver hackery is done, and the
normal Linux PCI machinery for scanning the root bus works to
detect the device, to perform driver matching, and to
initialize the driver and device.
PCI Device Removal
------------------
A Hyper-V host may initiate removal of a vPCI device from a
guest VM at any time during the life of the VM. The removal
is instigated by an admin action taken on the Hyper-V host and
is not under the control of the guest OS.
A guest VM is notified of the removal by an unsolicited
"Eject" message sent from the host to the guest over the VMBus
channel associated with the vPCI device. Upon receipt of such
a message, the Hyper-V virtual PCI driver in Linux
asynchronously invokes Linux kernel PCI subsystem calls to
shutdown and remove the device. When those calls are
complete, an "Ejection Complete" message is sent back to
Hyper-V over the VMBus channel indicating that the device has
been removed. At this point, Hyper-V sends a VMBus rescind
message to the Linux guest, which the VMBus driver in Linux
processes by removing the VMBus identity for the device. Once
that processing is complete, all vestiges of the device having
been present are gone from the Linux kernel. The rescind
message also indicates to the guest that Hyper-V has stopped
providing support for the vPCI device in the guest. If the
guest were to attempt to access that device's MMIO space, it
would be an invalid reference. Hypercalls affecting the device
return errors, and any further messages sent in the VMBus
channel are ignored.
After sending the Eject message, Hyper-V allows the guest VM
60 seconds to cleanly shutdown the device and respond with
Ejection Complete before sending the VMBus rescind
message. If for any reason the Eject steps don't complete
within the allowed 60 seconds, the Hyper-V host forcibly
performs the rescind steps, which will likely result in
cascading errors in the guest because the device is now no
longer present from the guest standpoint and accessing the
device MMIO space will fail.
Because ejection is asynchronous and can happen at any point
during the guest VM lifecycle, proper synchronization in the
Hyper-V virtual PCI driver is very tricky. Ejection has been
observed even before a newly offered vPCI device has been
fully setup. The Hyper-V virtual PCI driver has been updated
several times over the years to fix race conditions when
ejections happen at inopportune times. Care must be taken when
modifying this code to prevent re-introducing such problems.
See comments in the code.
Interrupt Assignment
--------------------
The Hyper-V virtual PCI driver supports vPCI devices using
MSI, multi-MSI, or MSI-X. Assigning the guest vCPU that will
receive the interrupt for a particular MSI or MSI-X message is
complex because of the way the Linux setup of IRQs maps onto
the Hyper-V interfaces. For the single-MSI and MSI-X cases,
Linux calls hv_compse_msi_msg() twice, with the first call
containing a dummy vCPU and the second call containing the
real vCPU. Furthermore, hv_irq_unmask() is finally called
(on x86) or the GICD registers are set (on arm64) to specify
the real vCPU again. Each of these three calls interact
with Hyper-V, which must decide which physical CPU should
receive the interrupt before it is forwarded to the guest VM.
Unfortunately, the Hyper-V decision-making process is a bit
limited, and can result in concentrating the physical
interrupts on a single CPU, causing a performance bottleneck.
See details about how this is resolved in the extensive
comment above the function hv_compose_msi_req_get_cpu().
The Hyper-V virtual PCI driver implements the
irq_chip.irq_compose_msi_msg function as hv_compose_msi_msg().
Unfortunately, on Hyper-V the implementation requires sending
a VMBus message to the Hyper-V host and awaiting an interrupt
indicating receipt of a reply message. Since
irq_chip.irq_compose_msi_msg can be called with IRQ locks
held, it doesn't work to do the normal sleep until awakened by
the interrupt. Instead hv_compose_msi_msg() must send the
VMBus message, and then poll for the completion message. As
further complexity, the vPCI device could be ejected/rescinded
while the polling is in progress, so this scenario must be
detected as well. See comments in the code regarding this
very tricky area.
Most of the code in the Hyper-V virtual PCI driver (pci-
hyperv.c) applies to Hyper-V and Linux guests running on x86
and on arm64 architectures. But there are differences in how
interrupt assignments are managed. On x86, the Hyper-V
virtual PCI driver in the guest must make a hypercall to tell
Hyper-V which guest vCPU should be interrupted by each
MSI/MSI-X interrupt, and the x86 interrupt vector number that
the x86_vector IRQ domain has picked for the interrupt. This
hypercall is made by hv_arch_irq_unmask(). On arm64, the
Hyper-V virtual PCI driver manages the allocation of an SPI
for each MSI/MSI-X interrupt. The Hyper-V virtual PCI driver
stores the allocated SPI in the architectural GICD registers,
which Hyper-V emulates, so no hypercall is necessary as with
x86. Hyper-V does not support using LPIs for vPCI devices in
arm64 guest VMs because it does not emulate a GICv3 ITS.
The Hyper-V virtual PCI driver in Linux supports vPCI devices
whose drivers create managed or unmanaged Linux IRQs. If the
smp_affinity for an unmanaged IRQ is updated via the /proc/irq
interface, the Hyper-V virtual PCI driver is called to tell
the Hyper-V host to change the interrupt targeting and
everything works properly. However, on x86 if the x86_vector
IRQ domain needs to reassign an interrupt vector due to
running out of vectors on a CPU, there's no path to inform the
Hyper-V host of the change, and things break. Fortunately,
guest VMs operate in a constrained device environment where
using all the vectors on a CPU doesn't happen. Since such a
problem is only a theoretical concern rather than a practical
concern, it has been left unaddressed.
DMA
---
By default, Hyper-V pins all guest VM memory in the host
when the VM is created, and programs the physical IOMMU to
allow the VM to have DMA access to all its memory. Hence
it is safe to assign PCI devices to the VM, and allow the
guest operating system to program the DMA transfers. The
physical IOMMU prevents a malicious guest from initiating
DMA to memory belonging to the host or to other VMs on the
host. From the Linux guest standpoint, such DMA transfers
are in "direct" mode since Hyper-V does not provide a virtual
IOMMU in the guest.
Hyper-V assumes that physical PCI devices always perform
cache-coherent DMA. When running on x86, this behavior is
required by the architecture. When running on arm64, the
architecture allows for both cache-coherent and
non-cache-coherent devices, with the behavior of each device
specified in the ACPI DSDT. But when a PCI device is assigned
to a guest VM, that device does not appear in the DSDT, so the
Hyper-V VMBus driver propagates cache-coherency information
from the VMBus node in the ACPI DSDT to all VMBus devices,
including vPCI devices (since they have a dual identity as a VMBus
device and as a PCI device). See vmbus_dma_configure().
Current Hyper-V versions always indicate that the VMBus is
cache coherent, so vPCI devices on arm64 always get marked as
cache coherent and the CPU does not perform any sync
operations as part of dma_map/unmap_*() calls.
vPCI protocol versions
----------------------
As previously described, during vPCI device setup and teardown
messages are passed over a VMBus channel between the Hyper-V
host and the Hyper-v vPCI driver in the Linux guest. Some
messages have been revised in newer versions of Hyper-V, so
the guest and host must agree on the vPCI protocol version to
be used. The version is negotiated when communication over
the VMBus channel is first established. See
hv_pci_protocol_negotiation(). Newer versions of the protocol
extend support to VMs with more than 64 vCPUs, and provide
additional information about the vPCI device, such as the
guest virtual NUMA node to which it is most closely affined in
the underlying hardware.
Guest NUMA node affinity
------------------------
When the vPCI protocol version provides it, the guest NUMA
node affinity of the vPCI device is stored as part of the Linux
device information for subsequent use by the Linux driver. See
hv_pci_assign_numa_node(). If the negotiated protocol version
does not support the host providing NUMA affinity information,
the Linux guest defaults the device NUMA node to 0. But even
when the negotiated protocol version includes NUMA affinity
information, the ability of the host to provide such
information depends on certain host configuration options. If
the guest receives NUMA node value "0", it could mean NUMA
node 0, or it could mean "no information is available".
Unfortunately it is not possible to distinguish the two cases
from the guest side.
PCI config space access in a CoCo VM
------------------------------------
Linux PCI device drivers access PCI config space using a
standard set of functions provided by the Linux PCI subsystem.
In Hyper-V guests these standard functions map to functions
hv_pcifront_read_config() and hv_pcifront_write_config()
in the Hyper-V virtual PCI driver. In normal VMs,
these hv_pcifront_*() functions directly access the PCI config
space, and the accesses trap to Hyper-V to be handled.
But in CoCo VMs, memory encryption prevents Hyper-V
from reading the guest instruction stream to emulate the
access, so the hv_pcifront_*() functions must invoke
hypercalls with explicit arguments describing the access to be
made.
Config Block back-channel
-------------------------
The Hyper-V host and Hyper-V virtual PCI driver in Linux
together implement a non-standard back-channel communication
path between the host and guest. The back-channel path uses
messages sent over the VMBus channel associated with the vPCI
device. The functions hyperv_read_cfg_blk() and
hyperv_write_cfg_blk() are the primary interfaces provided to
other parts of the Linux kernel. As of this writing, these
interfaces are used only by the Mellanox mlx5 driver to pass
diagnostic data to a Hyper-V host running in the Azure public
cloud. The functions hyperv_read_cfg_blk() and
hyperv_write_cfg_blk() are implemented in a separate module
(pci-hyperv-intf.c, under CONFIG_PCI_HYPERV_INTERFACE) that
effectively stubs them out when running in non-Hyper-V
environments.

49
MAINTAINERS
View File

@ -1395,6 +1395,7 @@ F: drivers/hwmon/max31760.c
ANALOGBITS PLL LIBRARIES
M: Paul Walmsley <paul.walmsley@sifive.com>
M: Samuel Holland <samuel.holland@sifive.com>
S: Supported
F: drivers/clk/analogbits/*
F: include/linux/clk/analogbits*
@ -2156,7 +2157,7 @@ M: Shawn Guo <shawnguo@kernel.org>
M: Sascha Hauer <s.hauer@pengutronix.de>
R: Pengutronix Kernel Team <kernel@pengutronix.de>
R: Fabio Estevam <festevam@gmail.com>
R: NXP Linux Team <linux-imx@nxp.com>
L: imx@lists.linux.dev
L: linux-arm-kernel@lists.infradead.org (moderated for non-subscribers)
S: Maintained
T: git git://git.kernel.org/pub/scm/linux/kernel/git/shawnguo/linux.git
@ -8505,7 +8506,7 @@ FREESCALE IMX / MXC FEC DRIVER
M: Wei Fang <wei.fang@nxp.com>
R: Shenwei Wang <shenwei.wang@nxp.com>
R: Clark Wang <xiaoning.wang@nxp.com>
R: NXP Linux Team <linux-imx@nxp.com>
L: imx@lists.linux.dev
L: netdev@vger.kernel.org
S: Maintained
F: Documentation/devicetree/bindings/net/fsl,fec.yaml
@ -8540,7 +8541,7 @@ F: drivers/i2c/busses/i2c-imx.c
FREESCALE IMX LPI2C DRIVER
M: Dong Aisheng <aisheng.dong@nxp.com>
L: linux-i2c@vger.kernel.org
L: linux-imx@nxp.com
L: imx@lists.linux.dev
S: Maintained
F: Documentation/devicetree/bindings/i2c/i2c-imx-lpi2c.yaml
F: drivers/i2c/busses/i2c-imx-lpi2c.c
@ -15747,7 +15748,7 @@ F: drivers/iio/gyro/fxas21002c_spi.c
NXP i.MX 7D/6SX/6UL/93 AND VF610 ADC DRIVER
M: Haibo Chen <haibo.chen@nxp.com>
L: linux-iio@vger.kernel.org
L: linux-imx@nxp.com
L: imx@lists.linux.dev
S: Maintained
F: Documentation/devicetree/bindings/iio/adc/fsl,imx7d-adc.yaml
F: Documentation/devicetree/bindings/iio/adc/fsl,vf610-adc.yaml
@ -15784,7 +15785,7 @@ F: drivers/gpu/drm/imx/dcss/
NXP i.MX 8QXP ADC DRIVER
M: Cai Huoqing <cai.huoqing@linux.dev>
M: Haibo Chen <haibo.chen@nxp.com>
L: linux-imx@nxp.com
L: imx@lists.linux.dev
L: linux-iio@vger.kernel.org
S: Maintained
F: Documentation/devicetree/bindings/iio/adc/nxp,imx8qxp-adc.yaml
@ -15792,7 +15793,7 @@ F: drivers/iio/adc/imx8qxp-adc.c
NXP i.MX 8QXP/8QM JPEG V4L2 DRIVER
M: Mirela Rabulea <mirela.rabulea@nxp.com>
R: NXP Linux Team <linux-imx@nxp.com>
L: imx@lists.linux.dev
L: linux-media@vger.kernel.org
S: Maintained
F: Documentation/devicetree/bindings/media/nxp,imx8-jpeg.yaml
@ -15802,7 +15803,7 @@ NXP i.MX CLOCK DRIVERS
M: Abel Vesa <abelvesa@kernel.org>
R: Peng Fan <peng.fan@nxp.com>
L: linux-clk@vger.kernel.org
L: linux-imx@nxp.com
L: imx@lists.linux.dev
S: Maintained
T: git git://git.kernel.org/pub/scm/linux/kernel/git/abelvesa/linux.git clk/imx
F: Documentation/devicetree/bindings/clock/imx*
@ -16763,6 +16764,7 @@ F: drivers/pci/controller/dwc/*layerscape*
PCI DRIVER FOR FU740
M: Paul Walmsley <paul.walmsley@sifive.com>
M: Greentime Hu <greentime.hu@sifive.com>
M: Samuel Holland <samuel.holland@sifive.com>
L: linux-pci@vger.kernel.org
S: Maintained
F: Documentation/devicetree/bindings/pci/sifive,fu740-pcie.yaml
@ -19680,7 +19682,7 @@ F: drivers/mmc/host/sdhci-of-at91.c
SECURE DIGITAL HOST CONTROLLER INTERFACE (SDHCI) NXP i.MX DRIVER
M: Haibo Chen <haibo.chen@nxp.com>
L: linux-imx@nxp.com
L: imx@lists.linux.dev
L: linux-mmc@vger.kernel.org
S: Maintained
F: drivers/mmc/host/sdhci-esdhc-imx.c
@ -20015,35 +20017,14 @@ S: Maintained
F: drivers/watchdog/simatic-ipc-wdt.c
SIFIVE DRIVERS
M: Palmer Dabbelt <palmer@dabbelt.com>
M: Paul Walmsley <paul.walmsley@sifive.com>
M: Samuel Holland <samuel.holland@sifive.com>
L: linux-riscv@lists.infradead.org
S: Supported
N: sifive
K: [^@]sifive
SIFIVE CACHE DRIVER
M: Conor Dooley <conor@kernel.org>
L: linux-riscv@lists.infradead.org
S: Maintained
F: Documentation/devicetree/bindings/cache/sifive,ccache0.yaml
F: drivers/cache/sifive_ccache.c
SIFIVE FU540 SYSTEM-ON-CHIP
M: Paul Walmsley <paul.walmsley@sifive.com>
M: Palmer Dabbelt <palmer@dabbelt.com>
L: linux-riscv@lists.infradead.org
S: Supported
T: git git://git.kernel.org/pub/scm/linux/kernel/git/pjw/sifive.git
N: fu540
K: fu540
SIFIVE PDMA DRIVER
M: Green Wan <green.wan@sifive.com>
S: Maintained
F: Documentation/devicetree/bindings/dma/sifive,fu540-c000-pdma.yaml
F: drivers/dma/sf-pdma/
N: sifive
K: fu[57]40
K: [^@]sifive
SILEAD TOUCHSCREEN DRIVER
M: Hans de Goede <hdegoede@redhat.com>
@ -20253,8 +20234,8 @@ F: Documentation/devicetree/bindings/net/socionext,uniphier-ave4.yaml
F: drivers/net/ethernet/socionext/sni_ave.c
SOCIONEXT (SNI) NETSEC NETWORK DRIVER
M: Jassi Brar <jaswinder.singh@linaro.org>
M: Ilias Apalodimas <ilias.apalodimas@linaro.org>
M: Masahisa Kojima <kojima.masahisa@socionext.com>
L: netdev@vger.kernel.org
S: Maintained
F: Documentation/devicetree/bindings/net/socionext,synquacer-netsec.yaml

2
Makefile
View File

@ -2,7 +2,7 @@
VERSION = 6
PATCHLEVEL = 8
SUBLEVEL = 0
EXTRAVERSION = -rc6
EXTRAVERSION = -rc7
NAME = Hurr durr I'ma ninja sloth
# *DOCUMENTATION*

26
arch/arm/boot/dts/nxp/imx/imx7s.dtsi
View File

@ -834,16 +834,6 @@
<&clks IMX7D_LCDIF_PIXEL_ROOT_CLK>;
clock-names = "pix", "axi";
status = "disabled";
port {
#address-cells = <1>;
#size-cells = <0>;
lcdif_out_mipi_dsi: endpoint@0 {
reg = <0>;
remote-endpoint = <&mipi_dsi_in_lcdif>;
};
};
};
mipi_csi: mipi-csi@30750000 {
@ -895,22 +885,6 @@
samsung,esc-clock-frequency = <20000000>;
samsung,pll-clock-frequency = <24000000>;
status = "disabled";
ports {
#address-cells = <1>;
#size-cells = <0>;
port@0 {
reg = <0>;
#address-cells = <1>;
#size-cells = <0>;
mipi_dsi_in_lcdif: endpoint@0 {
reg = <0>;
remote-endpoint = <&lcdif_out_mipi_dsi>;
};
};
};
};
};

1
arch/arm/configs/imx_v6_v7_defconfig
View File

@ -297,6 +297,7 @@ CONFIG_FB_MODE_HELPERS=y
CONFIG_LCD_CLASS_DEVICE=y
CONFIG_LCD_L4F00242T03=y
CONFIG_LCD_PLATFORM=y
CONFIG_BACKLIGHT_CLASS_DEVICE=y
CONFIG_BACKLIGHT_PWM=y
CONFIG_BACKLIGHT_GPIO=y
CONFIG_FRAMEBUFFER_CONSOLE=y

1
arch/arm64/boot/dts/allwinner/Makefile
View File

@ -42,5 +42,6 @@ dtb-$(CONFIG_ARCH_SUNXI) += sun50i-h616-bigtreetech-cb1-manta.dtb
dtb-$(CONFIG_ARCH_SUNXI) += sun50i-h616-bigtreetech-pi.dtb
dtb-$(CONFIG_ARCH_SUNXI) += sun50i-h616-orangepi-zero2.dtb
dtb-$(CONFIG_ARCH_SUNXI) += sun50i-h616-x96-mate.dtb
dtb-$(CONFIG_ARCH_SUNXI) += sun50i-h618-orangepi-zero2w.dtb
dtb-$(CONFIG_ARCH_SUNXI) += sun50i-h618-orangepi-zero3.dtb
dtb-$(CONFIG_ARCH_SUNXI) += sun50i-h618-transpeed-8k618-t.dtb

2
arch/arm64/boot/dts/freescale/imx8mp-dhcom-som.dtsi
View File

@ -255,7 +255,7 @@
<&clk IMX8MP_AUDIO_PLL2_OUT>;
assigned-clock-parents = <&clk IMX8MP_AUDIO_PLL2_OUT>;
assigned-clock-rates = <13000000>, <13000000>, <156000000>;
reset-gpios = <&gpio3 21 GPIO_ACTIVE_HIGH>;
reset-gpios = <&gpio4 1 GPIO_ACTIVE_HIGH>;
status = "disabled";
ports {

2
arch/arm64/boot/dts/freescale/imx8mp.dtsi
View File

@ -1820,7 +1820,7 @@
compatible = "fsl,imx8mp-ldb";
reg = <0x5c 0x4>, <0x128 0x4>;
reg-names = "ldb", "lvds";
clocks = <&clk IMX8MP_CLK_MEDIA_LDB>;
clocks = <&clk IMX8MP_CLK_MEDIA_LDB_ROOT>;
clock-names = "ldb";
assigned-clocks = <&clk IMX8MP_CLK_MEDIA_LDB>;
assigned-clock-parents = <&clk IMX8MP_VIDEO_PLL1_OUT>;

2
arch/arm64/boot/dts/nvidia/tegra234-p3737-0000+p3701-0000.dts
View File

@ -175,7 +175,7 @@
status = "okay";
phy-handle = <&mgbe0_phy>;
phy-mode = "usxgmii";
phy-mode = "10gbase-r";
mdio {
#address-cells = <1>;

6
arch/arm64/boot/dts/nvidia/tegra234.dtsi
View File

@ -1459,7 +1459,7 @@
<&mc TEGRA234_MEMORY_CLIENT_MGBEAWR &emc>;
interconnect-names = "dma-mem", "write";
iommus = <&smmu_niso0 TEGRA234_SID_MGBE>;
power-domains = <&bpmp TEGRA234_POWER_DOMAIN_MGBEA>;
power-domains = <&bpmp TEGRA234_POWER_DOMAIN_MGBEB>;
status = "disabled";
};
@ -1493,7 +1493,7 @@
<&mc TEGRA234_MEMORY_CLIENT_MGBEBWR &emc>;
interconnect-names = "dma-mem", "write";
iommus = <&smmu_niso0 TEGRA234_SID_MGBE_VF1>;
power-domains = <&bpmp TEGRA234_POWER_DOMAIN_MGBEB>;
power-domains = <&bpmp TEGRA234_POWER_DOMAIN_MGBEC>;
status = "disabled";
};
@ -1527,7 +1527,7 @@
<&mc TEGRA234_MEMORY_CLIENT_MGBECWR &emc>;
interconnect-names = "dma-mem", "write";
iommus = <&smmu_niso0 TEGRA234_SID_MGBE_VF2>;
power-domains = <&bpmp TEGRA234_POWER_DOMAIN_MGBEC>;
power-domains = <&bpmp TEGRA234_POWER_DOMAIN_MGBED>;
status = "disabled";
};

39
arch/arm64/boot/dts/qcom/msm8996.dtsi
View File

@ -457,25 +457,6 @@
};
};
mpm: interrupt-controller {
compatible = "qcom,mpm";
qcom,rpm-msg-ram = <&apss_mpm>;
interrupts = <GIC_SPI 171 IRQ_TYPE_EDGE_RISING>;
mboxes = <&apcs_glb 1>;
interrupt-controller;
#interrupt-cells = <2>;
#power-domain-cells = <0>;
interrupt-parent = <&intc>;
qcom,mpm-pin-count = <96>;
qcom,mpm-pin-map = <2 184>, /* TSENS1 upper_lower_int */
<52 243>, /* DWC3_PRI ss_phy_irq */
<79 347>, /* DWC3_PRI hs_phy_irq */
<80 352>, /* DWC3_SEC hs_phy_irq */
<81 347>, /* QUSB2_PHY_PRI DP+DM */
<82 352>, /* QUSB2_PHY_SEC DP+DM */
<87 326>; /* SPMI */
};
psci {
compatible = "arm,psci-1.0";
method = "smc";
@ -765,15 +746,8 @@
};
rpm_msg_ram: sram@68000 {
compatible = "qcom,rpm-msg-ram", "mmio-sram";
compatible = "qcom,rpm-msg-ram";
reg = <0x00068000 0x6000>;
#address-cells = <1>;
#size-cells = <1>;
ranges = <0 0x00068000 0x7000>;
apss_mpm: sram@1b8 {
reg = <0x1b8 0x48>;
};
};
qfprom@74000 {
@ -856,8 +830,8 @@
reg = <0x004ad000 0x1000>, /* TM */
<0x004ac000 0x1000>; /* SROT */
#qcom,sensors = <8>;
interrupts-extended = <&mpm 2 IRQ_TYPE_LEVEL_HIGH>,
<&intc GIC_SPI 430 IRQ_TYPE_LEVEL_HIGH>;
interrupts = <GIC_SPI 184 IRQ_TYPE_LEVEL_HIGH>,
<GIC_SPI 430 IRQ_TYPE_LEVEL_HIGH>;
interrupt-names = "uplow", "critical";
#thermal-sensor-cells = <1>;
};
@ -1363,7 +1337,6 @@
interrupts = <GIC_SPI 208 IRQ_TYPE_LEVEL_HIGH>;
gpio-controller;
gpio-ranges = <&tlmm 0 0 150>;
wakeup-parent = <&mpm>;
#gpio-cells = <2>;
interrupt-controller;
#interrupt-cells = <2>;
@ -1891,7 +1864,7 @@
<0x0400a000 0x002100>;
reg-names = "core", "chnls", "obsrvr", "intr", "cnfg";
interrupt-names = "periph_irq";
interrupts-extended = <&mpm 87 IRQ_TYPE_LEVEL_HIGH>;
interrupts = <GIC_SPI 326 IRQ_TYPE_LEVEL_HIGH>;
qcom,ee = <0>;
qcom,channel = <0>;
#address-cells = <2>;
@ -3052,8 +3025,8 @@
#size-cells = <1>;
ranges;
interrupts-extended = <&mpm 79 IRQ_TYPE_LEVEL_HIGH>,
<&mpm 52 IRQ_TYPE_LEVEL_HIGH>;
interrupts = <GIC_SPI 347 IRQ_TYPE_LEVEL_HIGH>,
<GIC_SPI 243 IRQ_TYPE_LEVEL_HIGH>;
interrupt-names = "hs_phy_irq", "ss_phy_irq";
clocks = <&gcc GCC_SYS_NOC_USB3_AXI_CLK>,

2
arch/arm64/boot/dts/qcom/sc8280xp-crd.dts
View File

@ -563,6 +563,8 @@
};
&pcie4 {
max-link-speed = <2>;
perst-gpios = <&tlmm 141 GPIO_ACTIVE_LOW>;
wake-gpios = <&tlmm 139 GPIO_ACTIVE_LOW>;

2
arch/arm64/boot/dts/qcom/sc8280xp-lenovo-thinkpad-x13s.dts
View File

@ -722,6 +722,8 @@
};
&pcie4 {
max-link-speed = <2>;
perst-gpios = <&tlmm 141 GPIO_ACTIVE_LOW>;
wake-gpios = <&tlmm 139 GPIO_ACTIVE_LOW>;

3
arch/arm64/boot/dts/qcom/sm6115.dtsi
View File

@ -1304,6 +1304,9 @@
&config_noc SLAVE_QUP_0 RPM_ALWAYS_TAG>,
<&system_noc MASTER_QUP_0 RPM_ALWAYS_TAG
&bimc SLAVE_EBI_CH0 RPM_ALWAYS_TAG>;
interconnect-names = "qup-core",
"qup-config",
"qup-memory";
#address-cells = <1>;
#size-cells = <0>;
status = "disabled";

2
arch/arm64/boot/dts/qcom/sm8650-mtp.dts
View File

@ -622,7 +622,7 @@
&tlmm {
/* Reserved I/Os for NFC */
gpio-reserved-ranges = <32 8>;
gpio-reserved-ranges = <32 8>, <74 1>;
disp0_reset_n_active: disp0-reset-n-active-state {
pins = "gpio133";

2
arch/arm64/boot/dts/qcom/sm8650-qrd.dts
View File

@ -659,7 +659,7 @@
&tlmm {
/* Reserved I/Os for NFC */
gpio-reserved-ranges = <32 8>;
gpio-reserved-ranges = <32 8>, <74 1>;
bt_default: bt-default-state {
bt-en-pins {

4
arch/powerpc/include/asm/rtas.h
View File

@ -69,7 +69,7 @@ enum rtas_function_index {
RTAS_FNIDX__IBM_READ_SLOT_RESET_STATE,
RTAS_FNIDX__IBM_READ_SLOT_RESET_STATE2,
RTAS_FNIDX__IBM_REMOVE_PE_DMA_WINDOW,
RTAS_FNIDX__IBM_RESET_PE_DMA_WINDOWS,
RTAS_FNIDX__IBM_RESET_PE_DMA_WINDOW,
RTAS_FNIDX__IBM_SCAN_LOG_DUMP,
RTAS_FNIDX__IBM_SET_DYNAMIC_INDICATOR,
RTAS_FNIDX__IBM_SET_EEH_OPTION,
@ -164,7 +164,7 @@ typedef struct {
#define RTAS_FN_IBM_READ_SLOT_RESET_STATE rtas_fn_handle(RTAS_FNIDX__IBM_READ_SLOT_RESET_STATE)
#define RTAS_FN_IBM_READ_SLOT_RESET_STATE2 rtas_fn_handle(RTAS_FNIDX__IBM_READ_SLOT_RESET_STATE2)
#define RTAS_FN_IBM_REMOVE_PE_DMA_WINDOW rtas_fn_handle(RTAS_FNIDX__IBM_REMOVE_PE_DMA_WINDOW)
#define RTAS_FN_IBM_RESET_PE_DMA_WINDOWS rtas_fn_handle(RTAS_FNIDX__IBM_RESET_PE_DMA_WINDOWS)
#define RTAS_FN_IBM_RESET_PE_DMA_WINDOW rtas_fn_handle(RTAS_FNIDX__IBM_RESET_PE_DMA_WINDOW)
#define RTAS_FN_IBM_SCAN_LOG_DUMP rtas_fn_handle(RTAS_FNIDX__IBM_SCAN_LOG_DUMP)
#define RTAS_FN_IBM_SET_DYNAMIC_INDICATOR rtas_fn_handle(RTAS_FNIDX__IBM_SET_DYNAMIC_INDICATOR)
#define RTAS_FN_IBM_SET_EEH_OPTION rtas_fn_handle(RTAS_FNIDX__IBM_SET_EEH_OPTION)

9
arch/powerpc/kernel/rtas.c
View File

@ -375,8 +375,13 @@ static struct rtas_function rtas_function_table[] __ro_after_init = {
[RTAS_FNIDX__IBM_REMOVE_PE_DMA_WINDOW] = {
.name = "ibm,remove-pe-dma-window",
},
[RTAS_FNIDX__IBM_RESET_PE_DMA_WINDOWS] = {
.name = "ibm,reset-pe-dma-windows",
[RTAS_FNIDX__IBM_RESET_PE_DMA_WINDOW] = {
/*
* Note: PAPR+ v2.13 7.3.31.4.1 spells this as
* "ibm,reset-pe-dma-windows" (plural), but RTAS
* implementations use the singular form in practice.
*/
.name = "ibm,reset-pe-dma-window",
},
[RTAS_FNIDX__IBM_SCAN_LOG_DUMP] = {
.name = "ibm,scan-log-dump",

152
arch/powerpc/platforms/pseries/iommu.c
View File

@ -574,29 +574,6 @@ static void iommu_table_setparms(struct pci_controller *phb,
struct iommu_table_ops iommu_table_lpar_multi_ops;
/*
* iommu_table_setparms_lpar
*
* Function: On pSeries LPAR systems, return TCE table info, given a pci bus.
*/
static void iommu_table_setparms_lpar(struct pci_controller *phb,
struct device_node *dn,
struct iommu_table *tbl,
struct iommu_table_group *table_group,
const __be32 *dma_window)
{
unsigned long offset, size, liobn;
of_parse_dma_window(dn, dma_window, &liobn, &offset, &size);
iommu_table_setparms_common(tbl, phb->bus->number, liobn, offset, size, IOMMU_PAGE_SHIFT_4K, NULL,
&iommu_table_lpar_multi_ops);
table_group->tce32_start = offset;
table_group->tce32_size = size;
}
struct iommu_table_ops iommu_table_pseries_ops = {
.set = tce_build_pSeries,
.clear = tce_free_pSeries,
@ -724,26 +701,71 @@ struct iommu_table_ops iommu_table_lpar_multi_ops = {
* dynamic 64bit DMA window, walking up the device tree.
*/
static struct device_node *pci_dma_find(struct device_node *dn,
const __be32 **dma_window)
struct dynamic_dma_window_prop *prop)
{
const __be32 *dw = NULL;
const __be32 *default_prop = NULL;
const __be32 *ddw_prop = NULL;
struct device_node *rdn = NULL;
bool default_win = false, ddw_win = false;
for ( ; dn && PCI_DN(dn); dn = dn->parent) {
dw = of_get_property(dn, "ibm,dma-window", NULL);
if (dw) {
if (dma_window)
*dma_window = dw;
return dn;
default_prop = of_get_property(dn, "ibm,dma-window", NULL);
if (default_prop) {
rdn = dn;
default_win = true;
}
dw = of_get_property(dn, DIRECT64_PROPNAME, NULL);
if (dw)
return dn;
dw = of_get_property(dn, DMA64_PROPNAME, NULL);
if (dw)
return dn;
ddw_prop = of_get_property(dn, DIRECT64_PROPNAME, NULL);
if (ddw_prop) {
rdn = dn;
ddw_win = true;
break;
}
ddw_prop = of_get_property(dn, DMA64_PROPNAME, NULL);
if (ddw_prop) {
rdn = dn;
ddw_win = true;
break;
}
return NULL;
/* At least found default window, which is the case for normal boot */
if (default_win)
break;
}
/* For PCI devices there will always be a DMA window, either on the device
* or parent bus
*/
WARN_ON(!(default_win | ddw_win));
/* caller doesn't want to get DMA window property */
if (!prop)
return rdn;
/* parse DMA window property. During normal system boot, only default
* DMA window is passed in OF. But, for kdump, a dedicated adapter might
* have both default and DDW in FDT. In this scenario, DDW takes precedence
* over default window.
*/
if (ddw_win) {
struct dynamic_dma_window_prop *p;
p = (struct dynamic_dma_window_prop *)ddw_prop;
prop->liobn = p->liobn;
prop->dma_base = p->dma_base;
prop->tce_shift = p->tce_shift;
prop->window_shift = p->window_shift;
} else if (default_win) {
unsigned long offset, size, liobn;
of_parse_dma_window(rdn, default_prop, &liobn, &offset, &size);
prop->liobn = cpu_to_be32((u32)liobn);
prop->dma_base = cpu_to_be64(offset);
prop->tce_shift = cpu_to_be32(IOMMU_PAGE_SHIFT_4K);
prop->window_shift = cpu_to_be32(order_base_2(size));
}
return rdn;
}
static void pci_dma_bus_setup_pSeriesLP(struct pci_bus *bus)
@ -751,17 +773,20 @@ static void pci_dma_bus_setup_pSeriesLP(struct pci_bus *bus)
struct iommu_table *tbl;
struct device_node *dn, *pdn;
struct pci_dn *ppci;
const __be32 *dma_window = NULL;
struct dynamic_dma_window_prop prop;
dn = pci_bus_to_OF_node(bus);
pr_debug("pci_dma_bus_setup_pSeriesLP: setting up bus %pOF\n",
dn);
pdn = pci_dma_find(dn, &dma_window);
pdn = pci_dma_find(dn, &prop);
if (dma_window == NULL)
pr_debug(" no ibm,dma-window property !\n");
/* In PPC architecture, there will always be DMA window on bus or one of the
* parent bus. During reboot, there will be ibm,dma-window property to
* define DMA window. For kdump, there will at least be default window or DDW
* or both.
*/
ppci = PCI_DN(pdn);
@ -771,13 +796,24 @@ static void pci_dma_bus_setup_pSeriesLP(struct pci_bus *bus)
if (!ppci->table_group) {
ppci->table_group = iommu_pseries_alloc_group(ppci->phb->node);
tbl = ppci->table_group->tables[0];
if (dma_window) {
iommu_table_setparms_lpar(ppci->phb, pdn, tbl,
ppci->table_group, dma_window);
iommu_table_setparms_common(tbl, ppci->phb->bus->number,
be32_to_cpu(prop.liobn),
be64_to_cpu(prop.dma_base),
1ULL << be32_to_cpu(prop.window_shift),
be32_to_cpu(prop.tce_shift), NULL,
&iommu_table_lpar_multi_ops);
/* Only for normal boot with default window. Doesn't matter even
* if we set these with DDW which is 64bit during kdump, since
* these will not be used during kdump.
*/
ppci->table_group->tce32_start = be64_to_cpu(prop.dma_base);
ppci->table_group->tce32_size = 1 << be32_to_cpu(prop.window_shift);
if (!iommu_init_table(tbl, ppci->phb->node, 0, 0))
panic("Failed to initialize iommu table");
}
iommu_register_group(ppci->table_group,
pci_domain_nr(bus), 0);
pr_debug(" created table: %p\n", ppci->table_group);
@ -968,6 +1004,12 @@ static void find_existing_ddw_windows_named(const char *name)
continue;
}
/* If at the time of system initialization, there are DDWs in OF,
* it means this is during kexec. DDW could be direct or dynamic.
* We will just mark DDWs as "dynamic" since this is kdump path,
* no need to worry about perforance. ddw_list_new_entry() will
* set window->direct = false.
*/
window = ddw_list_new_entry(pdn, dma64);
if (!window) {
of_node_put(pdn);
@ -1524,8 +1566,8 @@ static void pci_dma_dev_setup_pSeriesLP(struct pci_dev *dev)
{
struct device_node *pdn, *dn;
struct iommu_table *tbl;
const __be32 *dma_window = NULL;
struct pci_dn *pci;
struct dynamic_dma_window_prop prop;
pr_debug("pci_dma_dev_setup_pSeriesLP: %s\n", pci_name(dev));
@ -1538,7 +1580,7 @@ static void pci_dma_dev_setup_pSeriesLP(struct pci_dev *dev)
dn = pci_device_to_OF_node(dev);
pr_debug(" node is %pOF\n", dn);
pdn = pci_dma_find(dn, &dma_window);
pdn = pci_dma_find(dn, &prop);
if (!pdn || !PCI_DN(pdn)) {
printk(KERN_WARNING "pci_dma_dev_setup_pSeriesLP: "
"no DMA window found for pci dev=%s dn=%pOF\n",
@ -1551,8 +1593,20 @@ static void pci_dma_dev_setup_pSeriesLP(struct pci_dev *dev)
if (!pci->table_group) {
pci->table_group = iommu_pseries_alloc_group(pci->phb->node);
tbl = pci->table_group->tables[0];
iommu_table_setparms_lpar(pci->phb, pdn, tbl,
pci->table_group, dma_window);
iommu_table_setparms_common(tbl, pci->phb->bus->number,
be32_to_cpu(prop.liobn),
be64_to_cpu(prop.dma_base),
1ULL << be32_to_cpu(prop.window_shift),
be32_to_cpu(prop.tce_shift), NULL,
&iommu_table_lpar_multi_ops);
/* Only for normal boot with default window. Doesn't matter even
* if we set these with DDW which is 64bit during kdump, since
* these will not be used during kdump.
*/
pci->table_group->tce32_start = be64_to_cpu(prop.dma_base);
pci->table_group->tce32_size = 1 << be32_to_cpu(prop.window_shift);
iommu_init_table(tbl, pci->phb->node, 0, 0);
iommu_register_group(pci->table_group,

1
arch/riscv/Kconfig
View File

@ -315,7 +315,6 @@ config AS_HAS_OPTION_ARCH
# https://reviews.llvm.org/D123515
def_bool y
depends on $(as-instr, .option arch$(comma) +m)
depends on !$(as-instr, .option arch$(comma) -i)
source "arch/riscv/Kconfig.socs"
source "arch/riscv/Kconfig.errata"

2
arch/riscv/include/asm/csr.h
View File

@ -424,6 +424,7 @@
# define CSR_STATUS CSR_MSTATUS
# define CSR_IE CSR_MIE
# define CSR_TVEC CSR_MTVEC
# define CSR_ENVCFG CSR_MENVCFG
# define CSR_SCRATCH CSR_MSCRATCH
# define CSR_EPC CSR_MEPC
# define CSR_CAUSE CSR_MCAUSE
@ -448,6 +449,7 @@
# define CSR_STATUS CSR_SSTATUS
# define CSR_IE CSR_SIE
# define CSR_TVEC CSR_STVEC
# define CSR_ENVCFG CSR_SENVCFG
# define CSR_SCRATCH CSR_SSCRATCH
# define CSR_EPC CSR_SEPC
# define CSR_CAUSE CSR_SCAUSE

5
arch/riscv/include/asm/ftrace.h
View File

@ -25,6 +25,11 @@
#define ARCH_SUPPORTS_FTRACE_OPS 1
#ifndef __ASSEMBLY__
extern void *return_address(unsigned int level);
#define ftrace_return_address(n) return_address(n)
void MCOUNT_NAME(void);
static inline unsigned long ftrace_call_adjust(unsigned long addr)
{

2
arch/riscv/include/asm/hugetlb.h
View File

@ -11,8 +11,10 @@ static inline void arch_clear_hugepage_flags(struct page *page)
}
#define arch_clear_hugepage_flags arch_clear_hugepage_flags
#ifdef CONFIG_ARCH_ENABLE_HUGEPAGE_MIGRATION
bool arch_hugetlb_migration_supported(struct hstate *h);
#define arch_hugetlb_migration_supported arch_hugetlb_migration_supported
#endif
#ifdef CONFIG_RISCV_ISA_SVNAPOT
#define __HAVE_ARCH_HUGE_PTE_CLEAR

2
arch/riscv/include/asm/hwcap.h
View File

@ -81,6 +81,8 @@
#define RISCV_ISA_EXT_ZTSO 72
#define RISCV_ISA_EXT_ZACAS 73
#define RISCV_ISA_EXT_XLINUXENVCFG 127
#define RISCV_ISA_EXT_MAX 128
#define RISCV_ISA_EXT_INVALID U32_MAX

20
arch/riscv/include/asm/pgalloc.h
View File

@ -95,7 +95,13 @@ static inline void pud_free(struct mm_struct *mm, pud_t *pud)
__pud_free(mm, pud);
}
#define __pud_free_tlb(tlb, pud, addr) pud_free((tlb)->mm, pud)
#define __pud_free_tlb(tlb, pud, addr) \
do { \
if (pgtable_l4_enabled) { \
pagetable_pud_dtor(virt_to_ptdesc(pud)); \
tlb_remove_page_ptdesc((tlb), virt_to_ptdesc(pud)); \
} \
} while (0)
#define p4d_alloc_one p4d_alloc_one
static inline p4d_t *p4d_alloc_one(struct mm_struct *mm, unsigned long addr)
@ -124,7 +130,11 @@ static inline void p4d_free(struct mm_struct *mm, p4d_t *p4d)
__p4d_free(mm, p4d);
}
#define __p4d_free_tlb(tlb, p4d, addr) p4d_free((tlb)->mm, p4d)
#define __p4d_free_tlb(tlb, p4d, addr) \
do { \
if (pgtable_l5_enabled) \
tlb_remove_page_ptdesc((tlb), virt_to_ptdesc(p4d)); \
} while (0)
#endif /* __PAGETABLE_PMD_FOLDED */
static inline void sync_kernel_mappings(pgd_t *pgd)
@ -149,7 +159,11 @@ static inline pgd_t *pgd_alloc(struct mm_struct *mm)
#ifndef __PAGETABLE_PMD_FOLDED
#define __pmd_free_tlb(tlb, pmd, addr) pmd_free((tlb)->mm, pmd)
#define __pmd_free_tlb(tlb, pmd, addr) \
do { \
pagetable_pmd_dtor(virt_to_ptdesc(pmd)); \
tlb_remove_page_ptdesc((tlb), virt_to_ptdesc(pmd)); \
} while (0)
#endif /* __PAGETABLE_PMD_FOLDED */

2
arch/riscv/include/asm/pgtable-64.h
View File

@ -136,7 +136,7 @@ enum napot_cont_order {
* 10010 - IO Strongly-ordered, Non-cacheable, Non-bufferable, Shareable, Non-trustable
*/
#define _PAGE_PMA_THEAD ((1UL << 62) | (1UL << 61) | (1UL << 60))
#define _PAGE_NOCACHE_THEAD ((1UL < 61) | (1UL << 60))
#define _PAGE_NOCACHE_THEAD ((1UL << 61) | (1UL << 60))
#define _PAGE_IO_THEAD ((1UL << 63) | (1UL << 60))
#define _PAGE_MTMASK_THEAD (_PAGE_PMA_THEAD | _PAGE_IO_THEAD | (1UL << 59))

6
arch/riscv/include/asm/pgtable.h
View File

@ -84,7 +84,7 @@
* Define vmemmap for pfn_to_page & page_to_pfn calls. Needed if kernel
* is configured with CONFIG_SPARSEMEM_VMEMMAP enabled.
*/
#define vmemmap ((struct page *)VMEMMAP_START)
#define vmemmap ((struct page *)VMEMMAP_START - (phys_ram_base >> PAGE_SHIFT))
#define PCI_IO_SIZE SZ_16M
#define PCI_IO_END VMEMMAP_START
@ -439,6 +439,10 @@ static inline pte_t pte_mkhuge(pte_t pte)
return pte;
}
#define pte_leaf_size(pte) (pte_napot(pte) ? \
napot_cont_size(napot_cont_order(pte)) :\
PAGE_SIZE)
#ifdef CONFIG_NUMA_BALANCING
/*
* See the comment in include/asm-generic/pgtable.h

1
arch/riscv/include/asm/suspend.h
View File

@ -14,6 +14,7 @@ struct suspend_context {
struct pt_regs regs;
/* Saved and restored by high-level functions */
unsigned long scratch;
unsigned long envcfg;
unsigned long tvec;
unsigned long ie;
#ifdef CONFIG_MMU

61
arch/riscv/include/asm/vmalloc.h
View File

@ -19,65 +19,6 @@ static inline bool arch_vmap_pmd_supported(pgprot_t prot)
return true;
}
#ifdef CONFIG_RISCV_ISA_SVNAPOT
#include <linux/pgtable.h>
#endif
#define arch_vmap_pte_range_map_size arch_vmap_pte_range_map_size
static inline unsigned long arch_vmap_pte_range_map_size(unsigned long addr, unsigned long end,
u64 pfn, unsigned int max_page_shift)
{
unsigned long map_size = PAGE_SIZE;
unsigned long size, order;
if (!has_svnapot())
return map_size;
for_each_napot_order_rev(order) {
if (napot_cont_shift(order) > max_page_shift)
continue;
size = napot_cont_size(order);
if (end - addr < size)
continue;
if (!IS_ALIGNED(addr, size))
continue;
if (!IS_ALIGNED(PFN_PHYS(pfn), size))
continue;
map_size = size;
break;
}
return map_size;
}
#define arch_vmap_pte_supported_shift arch_vmap_pte_supported_shift
static inline int arch_vmap_pte_supported_shift(unsigned long size)
{
int shift = PAGE_SHIFT;
unsigned long order;
if (!has_svnapot())
return shift;
WARN_ON_ONCE(size >= PMD_SIZE);
for_each_napot_order_rev(order) {
if (napot_cont_size(order) > size)
continue;
if (!IS_ALIGNED(size, napot_cont_size(order)))
continue;
shift = napot_cont_shift(order);
break;
}
return shift;
}
#endif /* CONFIG_RISCV_ISA_SVNAPOT */
#endif /* CONFIG_HAVE_ARCH_HUGE_VMAP */
#endif /* _ASM_RISCV_VMALLOC_H */

2
arch/riscv/kernel/Makefile
View File

@ -7,6 +7,7 @@ ifdef CONFIG_FTRACE
CFLAGS_REMOVE_ftrace.o = $(CC_FLAGS_FTRACE)
CFLAGS_REMOVE_patch.o = $(CC_FLAGS_FTRACE)
CFLAGS_REMOVE_sbi.o = $(CC_FLAGS_FTRACE)
CFLAGS_REMOVE_return_address.o = $(CC_FLAGS_FTRACE)
endif
CFLAGS_syscall_table.o += $(call cc-option,-Wno-override-init,)
CFLAGS_compat_syscall_table.o += $(call cc-option,-Wno-override-init,)
@ -46,6 +47,7 @@ obj-y += irq.o
obj-y += process.o
obj-y += ptrace.o
obj-y += reset.o
obj-y += return_address.o
obj-y += setup.o
obj-y += signal.o
obj-y += syscall_table.o

31
arch/riscv/kernel/cpufeature.c
View File

@ -24,6 +24,7 @@
#include <asm/hwprobe.h>
#include <asm/patch.h>
#include <asm/processor.h>
#include <asm/sbi.h>
#include <asm/vector.h>
#include "copy-unaligned.h"
@ -201,6 +202,16 @@ static const unsigned int riscv_zvbb_exts[] = {
RISCV_ISA_EXT_ZVKB
};
/*
* While the [ms]envcfg CSRs were not defined until version 1.12 of the RISC-V
* privileged ISA, the existence of the CSRs is implied by any extension which
* specifies [ms]envcfg bit(s). Hence, we define a custom ISA extension for the
* existence of the CSR, and treat it as a subset of those other extensions.
*/
static const unsigned int riscv_xlinuxenvcfg_exts[] = {
RISCV_ISA_EXT_XLINUXENVCFG
};
/*
* The canonical order of ISA extension names in the ISA string is defined in
* chapter 27 of the unprivileged specification.
@ -250,8 +261,8 @@ const struct riscv_isa_ext_data riscv_isa_ext[] = {
__RISCV_ISA_EXT_DATA(c, RISCV_ISA_EXT_c),
__RISCV_ISA_EXT_DATA(v, RISCV_ISA_EXT_v),
__RISCV_ISA_EXT_DATA(h, RISCV_ISA_EXT_h),
__RISCV_ISA_EXT_DATA(zicbom, RISCV_ISA_EXT_ZICBOM),
__RISCV_ISA_EXT_DATA(zicboz, RISCV_ISA_EXT_ZICBOZ),
__RISCV_ISA_EXT_SUPERSET(zicbom, RISCV_ISA_EXT_ZICBOM, riscv_xlinuxenvcfg_exts),
__RISCV_ISA_EXT_SUPERSET(zicboz, RISCV_ISA_EXT_ZICBOZ, riscv_xlinuxenvcfg_exts),
__RISCV_ISA_EXT_DATA(zicntr, RISCV_ISA_EXT_ZICNTR),
__RISCV_ISA_EXT_DATA(zicond, RISCV_ISA_EXT_ZICOND),
__RISCV_ISA_EXT_DATA(zicsr, RISCV_ISA_EXT_ZICSR),
@ -538,6 +549,20 @@ static void __init riscv_fill_hwcap_from_isa_string(unsigned long *isa2hwcap)
set_bit(RISCV_ISA_EXT_ZIHPM, isainfo->isa);
}
/*
* "V" in ISA strings is ambiguous in practice: it should mean
* just the standard V-1.0 but vendors aren't well behaved.
* Many vendors with T-Head CPU cores which implement the 0.7.1
* version of the vector specification put "v" into their DTs.
* CPU cores with the ratified spec will contain non-zero
* marchid.
*/
if (acpi_disabled && riscv_cached_mvendorid(cpu) == THEAD_VENDOR_ID &&
riscv_cached_marchid(cpu) == 0x0) {
this_hwcap &= ~isa2hwcap[RISCV_ISA_EXT_v];
clear_bit(RISCV_ISA_EXT_v, isainfo->isa);
}
/*
* All "okay" hart should have same isa. Set HWCAP based on
* common capabilities of every "okay" hart, in case they don't
@ -950,7 +975,7 @@ arch_initcall(check_unaligned_access_all_cpus);
void riscv_user_isa_enable(void)
{
if (riscv_cpu_has_extension_unlikely(smp_processor_id(), RISCV_ISA_EXT_ZICBOZ))
csr_set(CSR_SENVCFG, ENVCFG_CBZE);
csr_set(CSR_ENVCFG, ENVCFG_CBZE);
}
#ifdef CONFIG_RISCV_ALTERNATIVE

48
arch/riscv/kernel/return_address.c Normal file
View File

@ -0,0 +1,48 @@
// SPDX-License-Identifier: GPL-2.0-only
/*
* This code come from arch/arm64/kernel/return_address.c
*
* Copyright (C) 2023 SiFive.
*/
#include <linux/export.h>
#include <linux/kprobes.h>
#include <linux/stacktrace.h>
struct return_address_data {
unsigned int level;
void *addr;
};
static bool save_return_addr(void *d, unsigned long pc)
{
struct return_address_data *data = d;
if (!data->level) {
data->addr = (void *)pc;
return false;
}
--data->level;
return true;
}
NOKPROBE_SYMBOL(save_return_addr);
noinline void *return_address(unsigned int level)
{
struct return_address_data data;
data.level = level + 3;
data.addr = NULL;
arch_stack_walk(save_return_addr, &data, current, NULL);
if (!data.level)
return data.addr;
else
return NULL;
}
EXPORT_SYMBOL_GPL(return_address);
NOKPROBE_SYMBOL(return_address);

4
arch/riscv/kernel/suspend.c
View File

@ -15,6 +15,8 @@
void suspend_save_csrs(struct suspend_context *context)
{
context->scratch = csr_read(CSR_SCRATCH);
if (riscv_cpu_has_extension_unlikely(smp_processor_id(), RISCV_ISA_EXT_XLINUXENVCFG))
context->envcfg = csr_read(CSR_ENVCFG);
context->tvec = csr_read(CSR_TVEC);
context->ie = csr_read(CSR_IE);
@ -36,6 +38,8 @@ void suspend_save_csrs(struct suspend_context *context)
void suspend_restore_csrs(struct suspend_context *context)
{
csr_write(CSR_SCRATCH, context->scratch);
if (riscv_cpu_has_extension_unlikely(smp_processor_id(), RISCV_ISA_EXT_XLINUXENVCFG))
csr_write(CSR_ENVCFG, context->envcfg);
csr_write(CSR_TVEC, context->tvec);
csr_write(CSR_IE, context->ie);

2
arch/riscv/mm/hugetlbpage.c
View File

@ -426,10 +426,12 @@ bool __init arch_hugetlb_valid_size(unsigned long size)
return __hugetlb_valid_size(size);
}
#ifdef CONFIG_ARCH_ENABLE_HUGEPAGE_MIGRATION
bool arch_hugetlb_migration_supported(struct hstate *h)
{
return __hugetlb_valid_size(huge_page_size(h));
}
#endif
#ifdef CONFIG_CONTIG_ALLOC
static __init int gigantic_pages_init(void)

7
arch/x86/hyperv/hv_vtl.c
View File

@ -16,6 +16,11 @@
extern struct boot_params boot_params;
static struct real_mode_header hv_vtl_real_mode_header;
static bool __init hv_vtl_msi_ext_dest_id(void)
{
return true;
}
void __init hv_vtl_init_platform(void)
{
pr_info("Linux runs in Hyper-V Virtual Trust Level\n");
@ -38,6 +43,8 @@ void __init hv_vtl_init_platform(void)
x86_platform.legacy.warm_reset = 0;
x86_platform.legacy.reserve_bios_regions = 0;
x86_platform.legacy.devices.pnpbios = 0;
x86_init.hyper.msi_ext_dest_id = hv_vtl_msi_ext_dest_id;
}
static inline u64 hv_vtl_system_desc_base(struct ldttss_desc *desc)

63
arch/x86/hyperv/ivm.c
View File

@ -15,6 +15,7 @@
#include <asm/io.h>
#include <asm/coco.h>
#include <asm/mem_encrypt.h>
#include <asm/set_memory.h>
#include <asm/mshyperv.h>
#include <asm/hypervisor.h>
#include <asm/mtrr.h>
@ -502,6 +503,31 @@ static int hv_mark_gpa_visibility(u16 count, const u64 pfn[],
return -EFAULT;
}
/*
* When transitioning memory between encrypted and decrypted, the caller
* of set_memory_encrypted() or set_memory_decrypted() is responsible for
* ensuring that the memory isn't in use and isn't referenced while the
* transition is in progress. The transition has multiple steps, and the
* memory is in an inconsistent state until all steps are complete. A
* reference while the state is inconsistent could result in an exception
* that can't be cleanly fixed up.
*
* But the Linux kernel load_unaligned_zeropad() mechanism could cause a
* stray reference that can't be prevented by the caller, so Linux has
* specific code to handle this case. But when the #VC and #VE exceptions
* routed to a paravisor, the specific code doesn't work. To avoid this
* problem, mark the pages as "not present" while the transition is in
* progress. If load_unaligned_zeropad() causes a stray reference, a normal
* page fault is generated instead of #VC or #VE, and the page-fault-based
* handlers for load_unaligned_zeropad() resolve the reference. When the
* transition is complete, hv_vtom_set_host_visibility() marks the pages
* as "present" again.
*/
static bool hv_vtom_clear_present(unsigned long kbuffer, int pagecount, bool enc)
{
return !set_memory_np(kbuffer, pagecount);
}
/*
* hv_vtom_set_host_visibility - Set specified memory visible to host.
*
@ -515,16 +541,28 @@ static bool hv_vtom_set_host_visibility(unsigned long kbuffer, int pagecount, bo
enum hv_mem_host_visibility visibility = enc ?
VMBUS_PAGE_NOT_VISIBLE : VMBUS_PAGE_VISIBLE_READ_WRITE;
u64 *pfn_array;
phys_addr_t paddr;
void *vaddr;
int ret = 0;
bool result = true;
int i, pfn;
pfn_array = kmalloc(HV_HYP_PAGE_SIZE, GFP_KERNEL);
if (!pfn_array)
return false;
if (!pfn_array) {
result = false;
goto err_set_memory_p;
}
for (i = 0, pfn = 0; i < pagecount; i++) {
pfn_array[pfn] = virt_to_hvpfn((void *)kbuffer + i * HV_HYP_PAGE_SIZE);
/*
* Use slow_virt_to_phys() because the PRESENT bit has been
* temporarily cleared in the PTEs. slow_virt_to_phys() works
* without the PRESENT bit while virt_to_hvpfn() or similar
* does not.
*/
vaddr = (void *)kbuffer + (i * HV_HYP_PAGE_SIZE);
paddr = slow_virt_to_phys(vaddr);
pfn_array[pfn] = paddr >> HV_HYP_PAGE_SHIFT;
pfn++;
if (pfn == HV_MAX_MODIFY_GPA_REP_COUNT || i == pagecount - 1) {
@ -540,12 +578,28 @@ static bool hv_vtom_set_host_visibility(unsigned long kbuffer, int pagecount, bo
err_free_pfn_array:
kfree(pfn_array);
err_set_memory_p:
/*
* Set the PTE PRESENT bits again to revert what hv_vtom_clear_present()
* did. Do this even if there is an error earlier in this function in
* order to avoid leaving the memory range in a "broken" state. Setting
* the PRESENT bits shouldn't fail, but return an error if it does.
*/
if (set_memory_p(kbuffer, pagecount))
result = false;
return result;
}
static bool hv_vtom_tlb_flush_required(bool private)
{
return true;
/*
* Since hv_vtom_clear_present() marks the PTEs as "not present"
* and flushes the TLB, they can't be in the TLB. That makes the
* flush controlled by this function redundant, so return "false".
*/
return false;
}
static bool hv_vtom_cache_flush_required(void)
@ -608,6 +662,7 @@ void __init hv_vtom_init(void)
x86_platform.hyper.is_private_mmio = hv_is_private_mmio;
x86_platform.guest.enc_cache_flush_required = hv_vtom_cache_flush_required;
x86_platform.guest.enc_tlb_flush_required = hv_vtom_tlb_flush_required;
x86_platform.guest.enc_status_change_prepare = hv_vtom_clear_present;
x86_platform.guest.enc_status_change_finish = hv_vtom_set_host_visibility;
/* Set WB as the default cache mode. */

1
arch/x86/include/asm/set_memory.h
View File

@ -47,6 +47,7 @@ int set_memory_uc(unsigned long addr, int numpages);
int set_memory_wc(unsigned long addr, int numpages);
int set_memory_wb(unsigned long addr, int numpages);
int set_memory_np(unsigned long addr, int numpages);
int set_memory_p(unsigned long addr, int numpages);
int set_memory_4k(unsigned long addr, int numpages);
int set_memory_encrypted(unsigned long addr, int numpages);
int set_memory_decrypted(unsigned long addr, int numpages);

4
arch/x86/kernel/cpu/common.c
View File

@ -1589,6 +1589,7 @@ static void __init early_identify_cpu(struct cpuinfo_x86 *c)
get_cpu_vendor(c);
get_cpu_cap(c);
setup_force_cpu_cap(X86_FEATURE_CPUID);
get_cpu_address_sizes(c);
cpu_parse_early_param();
if (this_cpu->c_early_init)
@ -1601,9 +1602,8 @@ static void __init early_identify_cpu(struct cpuinfo_x86 *c)
this_cpu->c_bsp_init(c);
} else {
setup_clear_cpu_cap(X86_FEATURE_CPUID);
}
get_cpu_address_sizes(c);
}
setup_force_cpu_cap(X86_FEATURE_ALWAYS);

178
arch/x86/kernel/cpu/intel.c
View File

@ -184,6 +184,90 @@ static bool bad_spectre_microcode(struct cpuinfo_x86 *c)
return false;
}
#define MSR_IA32_TME_ACTIVATE 0x982
/* Helpers to access TME_ACTIVATE MSR */
#define TME_ACTIVATE_LOCKED(x) (x & 0x1)
#define TME_ACTIVATE_ENABLED(x) (x & 0x2)
#define TME_ACTIVATE_POLICY(x) ((x >> 4) & 0xf) /* Bits 7:4 */
#define TME_ACTIVATE_POLICY_AES_XTS_128 0
#define TME_ACTIVATE_KEYID_BITS(x) ((x >> 32) & 0xf) /* Bits 35:32 */
#define TME_ACTIVATE_CRYPTO_ALGS(x) ((x >> 48) & 0xffff) /* Bits 63:48 */
#define TME_ACTIVATE_CRYPTO_AES_XTS_128 1
/* Values for mktme_status (SW only construct) */
#define MKTME_ENABLED 0
#define MKTME_DISABLED 1
#define MKTME_UNINITIALIZED 2
static int mktme_status = MKTME_UNINITIALIZED;
static void detect_tme_early(struct cpuinfo_x86 *c)
{
u64 tme_activate, tme_policy, tme_crypto_algs;
int keyid_bits = 0, nr_keyids = 0;
static u64 tme_activate_cpu0 = 0;
rdmsrl(MSR_IA32_TME_ACTIVATE, tme_activate);
if (mktme_status != MKTME_UNINITIALIZED) {
if (tme_activate != tme_activate_cpu0) {
/* Broken BIOS? */
pr_err_once("x86/tme: configuration is inconsistent between CPUs\n");
pr_err_once("x86/tme: MKTME is not usable\n");
mktme_status = MKTME_DISABLED;
/* Proceed. We may need to exclude bits from x86_phys_bits. */
}
} else {
tme_activate_cpu0 = tme_activate;
}
if (!TME_ACTIVATE_LOCKED(tme_activate) || !TME_ACTIVATE_ENABLED(tme_activate)) {
pr_info_once("x86/tme: not enabled by BIOS\n");
mktme_status = MKTME_DISABLED;
return;
}
if (mktme_status != MKTME_UNINITIALIZED)
goto detect_keyid_bits;
pr_info("x86/tme: enabled by BIOS\n");
tme_policy = TME_ACTIVATE_POLICY(tme_activate);
if (tme_policy != TME_ACTIVATE_POLICY_AES_XTS_128)
pr_warn("x86/tme: Unknown policy is active: %#llx\n", tme_policy);
tme_crypto_algs = TME_ACTIVATE_CRYPTO_ALGS(tme_activate);
if (!(tme_crypto_algs & TME_ACTIVATE_CRYPTO_AES_XTS_128)) {
pr_err("x86/mktme: No known encryption algorithm is supported: %#llx\n",
tme_crypto_algs);
mktme_status = MKTME_DISABLED;
}
detect_keyid_bits:
keyid_bits = TME_ACTIVATE_KEYID_BITS(tme_activate);
nr_keyids = (1UL << keyid_bits) - 1;
if (nr_keyids) {
pr_info_once("x86/mktme: enabled by BIOS\n");
pr_info_once("x86/mktme: %d KeyIDs available\n", nr_keyids);
} else {
pr_info_once("x86/mktme: disabled by BIOS\n");
}
if (mktme_status == MKTME_UNINITIALIZED) {
/* MKTME is usable */
mktme_status = MKTME_ENABLED;
}
/*
* KeyID bits effectively lower the number of physical address
* bits. Update cpuinfo_x86::x86_phys_bits accordingly.
*/
c->x86_phys_bits -= keyid_bits;
}
static void early_init_intel(struct cpuinfo_x86 *c)
{
u64 misc_enable;
@ -322,6 +406,13 @@ static void early_init_intel(struct cpuinfo_x86 *c)
*/
if (detect_extended_topology_early(c) < 0)
detect_ht_early(c);
/*
* Adjust the number of physical bits early because it affects the
* valid bits of the MTRR mask registers.
*/
if (cpu_has(c, X86_FEATURE_TME))
detect_tme_early(c);
}
static void bsp_init_intel(struct cpuinfo_x86 *c)
@ -482,90 +573,6 @@ static void srat_detect_node(struct cpuinfo_x86 *c)
#endif
}
#define MSR_IA32_TME_ACTIVATE 0x982
/* Helpers to access TME_ACTIVATE MSR */
#define TME_ACTIVATE_LOCKED(x) (x & 0x1)
#define TME_ACTIVATE_ENABLED(x) (x & 0x2)
#define TME_ACTIVATE_POLICY(x) ((x >> 4) & 0xf) /* Bits 7:4 */
#define TME_ACTIVATE_POLICY_AES_XTS_128 0
#define TME_ACTIVATE_KEYID_BITS(x) ((x >> 32) & 0xf) /* Bits 35:32 */
#define TME_ACTIVATE_CRYPTO_ALGS(x) ((x >> 48) & 0xffff) /* Bits 63:48 */
#define TME_ACTIVATE_CRYPTO_AES_XTS_128 1
/* Values for mktme_status (SW only construct) */
#define MKTME_ENABLED 0
#define MKTME_DISABLED 1
#define MKTME_UNINITIALIZED 2
static int mktme_status = MKTME_UNINITIALIZED;
static void detect_tme(struct cpuinfo_x86 *c)
{
u64 tme_activate, tme_policy, tme_crypto_algs;
int keyid_bits = 0, nr_keyids = 0;
static u64 tme_activate_cpu0 = 0;
rdmsrl(MSR_IA32_TME_ACTIVATE, tme_activate);
if (mktme_status != MKTME_UNINITIALIZED) {
if (tme_activate != tme_activate_cpu0) {
/* Broken BIOS? */
pr_err_once("x86/tme: configuration is inconsistent between CPUs\n");
pr_err_once("x86/tme: MKTME is not usable\n");
mktme_status = MKTME_DISABLED;
/* Proceed. We may need to exclude bits from x86_phys_bits. */
}
} else {
tme_activate_cpu0 = tme_activate;
}
if (!TME_ACTIVATE_LOCKED(tme_activate) || !TME_ACTIVATE_ENABLED(tme_activate)) {
pr_info_once("x86/tme: not enabled by BIOS\n");
mktme_status = MKTME_DISABLED;
return;
}
if (mktme_status != MKTME_UNINITIALIZED)
goto detect_keyid_bits;
pr_info("x86/tme: enabled by BIOS\n");
tme_policy = TME_ACTIVATE_POLICY(tme_activate);
if (tme_policy != TME_ACTIVATE_POLICY_AES_XTS_128)
pr_warn("x86/tme: Unknown policy is active: %#llx\n", tme_policy);
tme_crypto_algs = TME_ACTIVATE_CRYPTO_ALGS(tme_activate);
if (!(tme_crypto_algs & TME_ACTIVATE_CRYPTO_AES_XTS_128)) {
pr_err("x86/mktme: No known encryption algorithm is supported: %#llx\n",
tme_crypto_algs);
mktme_status = MKTME_DISABLED;
}
detect_keyid_bits:
keyid_bits = TME_ACTIVATE_KEYID_BITS(tme_activate);
nr_keyids = (1UL << keyid_bits) - 1;
if (nr_keyids) {
pr_info_once("x86/mktme: enabled by BIOS\n");
pr_info_once("x86/mktme: %d KeyIDs available\n", nr_keyids);
} else {
pr_info_once("x86/mktme: disabled by BIOS\n");
}
if (mktme_status == MKTME_UNINITIALIZED) {
/* MKTME is usable */
mktme_status = MKTME_ENABLED;
}
/*
* KeyID bits effectively lower the number of physical address
* bits. Update cpuinfo_x86::x86_phys_bits accordingly.
*/
c->x86_phys_bits -= keyid_bits;
}
static void init_cpuid_fault(struct cpuinfo_x86 *c)
{
u64 msr;
@ -702,9 +709,6 @@ static void init_intel(struct cpuinfo_x86 *c)
init_ia32_feat_ctl(c);
if (cpu_has(c, X86_FEATURE_TME))
detect_tme(c);
init_intel_misc_features(c);
split_lock_init();

8
arch/x86/kernel/e820.c
View File

@ -1017,10 +1017,12 @@ void __init e820__reserve_setup_data(void)
e820__range_update(pa_data, sizeof(*data)+data->len, E820_TYPE_RAM, E820_TYPE_RESERVED_KERN);
/*
* SETUP_EFI and SETUP_IMA are supplied by kexec and do not need
* to be reserved.
* SETUP_EFI, SETUP_IMA and SETUP_RNG_SEED are supplied by
* kexec and do not need to be reserved.
*/
if (data->type != SETUP_EFI && data->type != SETUP_IMA)
if (data->type != SETUP_EFI &&
data->type != SETUP_IMA &&
data->type != SETUP_RNG_SEED)
e820__range_update_kexec(pa_data,
sizeof(*data) + data->len,
E820_TYPE_RAM, E820_TYPE_RESERVED_KERN);

24
arch/x86/mm/pat/set_memory.c
View File

@ -755,10 +755,14 @@ pmd_t *lookup_pmd_address(unsigned long address)
* areas on 32-bit NUMA systems. The percpu areas can
* end up in this kind of memory, for instance.
*
* This could be optimized, but it is only intended to be
* used at initialization time, and keeping it
* unoptimized should increase the testing coverage for
* the more obscure platforms.
* Note that as long as the PTEs are well-formed with correct PFNs, this
* works without checking the PRESENT bit in the leaf PTE. This is unlike
* the similar vmalloc_to_page() and derivatives. Callers may depend on
* this behavior.
*
* This could be optimized, but it is only used in paths that are not perf
* sensitive, and keeping it unoptimized should increase the testing coverage
* for the more obscure platforms.
*/
phys_addr_t slow_virt_to_phys(void *__virt_addr)
{
@ -2041,17 +2045,12 @@ int set_mce_nospec(unsigned long pfn)
return rc;
}
static int set_memory_p(unsigned long *addr, int numpages)
{
return change_page_attr_set(addr, numpages, __pgprot(_PAGE_PRESENT), 0);
}
/* Restore full speculative operation to the pfn. */
int clear_mce_nospec(unsigned long pfn)
{
unsigned long addr = (unsigned long) pfn_to_kaddr(pfn);
return set_memory_p(&addr, 1);
return set_memory_p(addr, 1);
}
EXPORT_SYMBOL_GPL(clear_mce_nospec);
#endif /* CONFIG_X86_64 */
@ -2104,6 +2103,11 @@ int set_memory_np_noalias(unsigned long addr, int numpages)
CPA_NO_CHECK_ALIAS, NULL);
}
int set_memory_p(unsigned long addr, int numpages)
{
return change_page_attr_set(&addr, numpages, __pgprot(_PAGE_PRESENT), 0);
}
int set_memory_4k(unsigned long addr, int numpages)
{
return change_page_attr_set_clr(&addr, numpages, __pgprot(0),

34
drivers/crypto/allwinner/sun8i-ce/sun8i-ce-cipher.c
View File

@ -299,22 +299,6 @@ theend:
return err;
}
static void sun8i_ce_cipher_run(struct crypto_engine *engine, void *areq)
{
struct skcipher_request *breq = container_of(areq, struct skcipher_request, base);
struct crypto_skcipher *tfm = crypto_skcipher_reqtfm(breq);
struct sun8i_cipher_tfm_ctx *op = crypto_skcipher_ctx(tfm);
struct sun8i_ce_dev *ce = op->ce;
struct sun8i_cipher_req_ctx *rctx = skcipher_request_ctx(breq);
int flow, err;
flow = rctx->flow;
err = sun8i_ce_run_task(ce, flow, crypto_tfm_alg_name(breq->base.tfm));
local_bh_disable();
crypto_finalize_skcipher_request(engine, breq, err);
local_bh_enable();
}
static void sun8i_ce_cipher_unprepare(struct crypto_engine *engine,
void *async_req)
{
@ -360,6 +344,23 @@ static void sun8i_ce_cipher_unprepare(struct crypto_engine *engine,
dma_unmap_single(ce->dev, rctx->addr_key, op->keylen, DMA_TO_DEVICE);
}
static void sun8i_ce_cipher_run(struct crypto_engine *engine, void *areq)
{
struct skcipher_request *breq = container_of(areq, struct skcipher_request, base);
struct crypto_skcipher *tfm = crypto_skcipher_reqtfm(breq);
struct sun8i_cipher_tfm_ctx *op = crypto_skcipher_ctx(tfm);
struct sun8i_ce_dev *ce = op->ce;
struct sun8i_cipher_req_ctx *rctx = skcipher_request_ctx(breq);
int flow, err;
flow = rctx->flow;
err = sun8i_ce_run_task(ce, flow, crypto_tfm_alg_name(breq->base.tfm));
sun8i_ce_cipher_unprepare(engine, areq);
local_bh_disable();
crypto_finalize_skcipher_request(engine, breq, err);
local_bh_enable();
}
int sun8i_ce_cipher_do_one(struct crypto_engine *engine, void *areq)
{
int err = sun8i_ce_cipher_prepare(engine, areq);
@ -368,7 +369,6 @@ int sun8i_ce_cipher_do_one(struct crypto_engine *engine, void *areq)
return err;
sun8i_ce_cipher_run(engine, areq);
sun8i_ce_cipher_unprepare(engine, areq);
return 0;
}

4
drivers/crypto/rockchip/rk3288_crypto_ahash.c
View File

@ -332,12 +332,12 @@ static int rk_hash_run(struct crypto_engine *engine, void *breq)
theend:
pm_runtime_put_autosuspend(rkc->dev);
rk_hash_unprepare(engine, breq);
local_bh_disable();
crypto_finalize_hash_request(engine, breq, err);
local_bh_enable();
rk_hash_unprepare(engine, breq);
return 0;
}

17
drivers/dma/dw-edma/dw-edma-v0-core.c
View File

@ -346,6 +346,20 @@ static void dw_edma_v0_core_write_chunk(struct dw_edma_chunk *chunk)
dw_edma_v0_write_ll_link(chunk, i, control, chunk->ll_region.paddr);
}
static void dw_edma_v0_sync_ll_data(struct dw_edma_chunk *chunk)
{
/*
* In case of remote eDMA engine setup, the DW PCIe RP/EP internal
* configuration registers and application memory are normally accessed
* over different buses. Ensure LL-data reaches the memory before the
* doorbell register is toggled by issuing the dummy-read from the remote
* LL memory in a hope that the MRd TLP will return only after the
* last MWr TLP is completed
*/
if (!(chunk->chan->dw->chip->flags & DW_EDMA_CHIP_LOCAL))
readl(chunk->ll_region.vaddr.io);
}
static void dw_edma_v0_core_start(struct dw_edma_chunk *chunk, bool first)
{
struct dw_edma_chan *chan = chunk->chan;
@ -412,6 +426,9 @@ static void dw_edma_v0_core_start(struct dw_edma_chunk *chunk, bool first)
SET_CH_32(dw, chan->dir, chan->id, llp.msb,
upper_32_bits(chunk->ll_region.paddr));
}
dw_edma_v0_sync_ll_data(chunk);
/* Doorbell */
SET_RW_32(dw, chan->dir, doorbell,
FIELD_PREP(EDMA_V0_DOORBELL_CH_MASK, chan->id));

39
drivers/dma/dw-edma/dw-hdma-v0-core.c
View File

@ -65,18 +65,12 @@ static void dw_hdma_v0_core_off(struct dw_edma *dw)
static u16 dw_hdma_v0_core_ch_count(struct dw_edma *dw, enum dw_edma_dir dir)
{
u32 num_ch = 0;
int id;
for (id = 0; id < HDMA_V0_MAX_NR_CH; id++) {
if (GET_CH_32(dw, id, dir, ch_en) & BIT(0))
num_ch++;
}
if (num_ch > HDMA_V0_MAX_NR_CH)
num_ch = HDMA_V0_MAX_NR_CH;
return (u16)num_ch;
/*
* The HDMA IP have no way to know the number of hardware channels
* available, we set it to maximum channels and let the platform
* set the right number of channels.
*/
return HDMA_V0_MAX_NR_CH;
}
static enum dma_status dw_hdma_v0_core_ch_status(struct dw_edma_chan *chan)
@ -228,6 +222,20 @@ static void dw_hdma_v0_core_write_chunk(struct dw_edma_chunk *chunk)
dw_hdma_v0_write_ll_link(chunk, i, control, chunk->ll_region.paddr);
}
static void dw_hdma_v0_sync_ll_data(struct dw_edma_chunk *chunk)
{
/*
* In case of remote HDMA engine setup, the DW PCIe RP/EP internal
* configuration registers and application memory are normally accessed
* over different buses. Ensure LL-data reaches the memory before the
* doorbell register is toggled by issuing the dummy-read from the remote
* LL memory in a hope that the MRd TLP will return only after the
* last MWr TLP is completed
*/
if (!(chunk->chan->dw->chip->flags & DW_EDMA_CHIP_LOCAL))
readl(chunk->ll_region.vaddr.io);
}
static void dw_hdma_v0_core_start(struct dw_edma_chunk *chunk, bool first)
{
struct dw_edma_chan *chan = chunk->chan;
@ -242,7 +250,9 @@ static void dw_hdma_v0_core_start(struct dw_edma_chunk *chunk, bool first)
/* Interrupt enable&unmask - done, abort */
tmp = GET_CH_32(dw, chan->dir, chan->id, int_setup) |
HDMA_V0_STOP_INT_MASK | HDMA_V0_ABORT_INT_MASK |
HDMA_V0_LOCAL_STOP_INT_EN | HDMA_V0_LOCAL_STOP_INT_EN;
HDMA_V0_LOCAL_STOP_INT_EN | HDMA_V0_LOCAL_ABORT_INT_EN;
if (!(dw->chip->flags & DW_EDMA_CHIP_LOCAL))
tmp |= HDMA_V0_REMOTE_STOP_INT_EN | HDMA_V0_REMOTE_ABORT_INT_EN;
SET_CH_32(dw, chan->dir, chan->id, int_setup, tmp);
/* Channel control */
SET_CH_32(dw, chan->dir, chan->id, control1, HDMA_V0_LINKLIST_EN);
@ -256,6 +266,9 @@ static void dw_hdma_v0_core_start(struct dw_edma_chunk *chunk, bool first)
/* Set consumer cycle */
SET_CH_32(dw, chan->dir, chan->id, cycle_sync,
HDMA_V0_CONSUMER_CYCLE_STAT | HDMA_V0_CONSUMER_CYCLE_BIT);
dw_hdma_v0_sync_ll_data(chunk);
/* Doorbell */
SET_CH_32(dw, chan->dir, chan->id, doorbell, HDMA_V0_DOORBELL_START);
}

2
drivers/dma/dw-edma/dw-hdma-v0-regs.h
View File

@ -15,7 +15,7 @@
#define HDMA_V0_LOCAL_ABORT_INT_EN BIT(6)
#define HDMA_V0_REMOTE_ABORT_INT_EN BIT(5)
#define HDMA_V0_LOCAL_STOP_INT_EN BIT(4)
#define HDMA_V0_REMOTEL_STOP_INT_EN BIT(3)
#define HDMA_V0_REMOTE_STOP_INT_EN BIT(3)
#define HDMA_V0_ABORT_INT_MASK BIT(2)
#define HDMA_V0_STOP_INT_MASK BIT(0)
#define HDMA_V0_LINKLIST_EN BIT(0)

2
drivers/dma/fsl-edma-common.c
View File

@ -503,7 +503,7 @@ void fsl_edma_fill_tcd(struct fsl_edma_chan *fsl_chan,
if (fsl_chan->is_multi_fifo) {
/* set mloff to support multiple fifo */
burst = cfg->direction == DMA_DEV_TO_MEM ?
cfg->src_addr_width : cfg->dst_addr_width;
cfg->src_maxburst : cfg->dst_maxburst;
nbytes |= EDMA_V3_TCD_NBYTES_MLOFF(-(burst * 4));
/* enable DMLOE/SMLOE */
if (cfg->direction == DMA_MEM_TO_DEV) {

5
drivers/dma/fsl-edma-common.h
View File

@ -30,8 +30,9 @@
#define EDMA_TCD_ATTR_SSIZE(x) (((x) & GENMASK(2, 0)) << 8)
#define EDMA_TCD_ATTR_SMOD(x) (((x) & GENMASK(4, 0)) << 11)
#define EDMA_TCD_CITER_CITER(x) ((x) & GENMASK(14, 0))
#define EDMA_TCD_BITER_BITER(x) ((x) & GENMASK(14, 0))
#define EDMA_TCD_ITER_MASK GENMASK(14, 0)
#define EDMA_TCD_CITER_CITER(x) ((x) & EDMA_TCD_ITER_MASK)
#define EDMA_TCD_BITER_BITER(x) ((x) & EDMA_TCD_ITER_MASK)
#define EDMA_TCD_CSR_START BIT(0)
#define EDMA_TCD_CSR_INT_MAJOR BIT(1)

4
drivers/dma/fsl-edma-main.c
View File

@ -10,6 +10,7 @@
*/
#include <dt-bindings/dma/fsl-edma.h>
#include <linux/bitfield.h>
#include <linux/module.h>
#include <linux/interrupt.h>
#include <linux/clk.h>
@ -582,7 +583,8 @@ static int fsl_edma_probe(struct platform_device *pdev)
DMAENGINE_ALIGN_32_BYTES;
/* Per worst case 'nbytes = 1' take CITER as the max_seg_size */
dma_set_max_seg_size(fsl_edma->dma_dev.dev, 0x3fff);
dma_set_max_seg_size(fsl_edma->dma_dev.dev,
FIELD_GET(EDMA_TCD_ITER_MASK, EDMA_TCD_ITER_MASK));
fsl_edma->dma_dev.residue_granularity = DMA_RESIDUE_GRANULARITY_SEGMENT;

40
drivers/dma/fsl-qdma.c
View File

@ -109,6 +109,7 @@
#define FSL_QDMA_CMD_WTHROTL_OFFSET 20
#define FSL_QDMA_CMD_DSEN_OFFSET 19
#define FSL_QDMA_CMD_LWC_OFFSET 16
#define FSL_QDMA_CMD_PF BIT(17)
/* Field definition for Descriptor status */
#define QDMA_CCDF_STATUS_RTE BIT(5)
@ -160,6 +161,10 @@ struct fsl_qdma_format {
u8 __reserved1[2];
u8 cfg8b_w1;
} __packed;
struct {
__le32 __reserved2;
__le32 cmd;
} __packed;
__le64 data;
};
} __packed;
@ -354,7 +359,6 @@ static void fsl_qdma_free_chan_resources(struct dma_chan *chan)
static void fsl_qdma_comp_fill_memcpy(struct fsl_qdma_comp *fsl_comp,
dma_addr_t dst, dma_addr_t src, u32 len)
{
u32 cmd;
struct fsl_qdma_format *sdf, *ddf;
struct fsl_qdma_format *ccdf, *csgf_desc, *csgf_src, *csgf_dest;
@ -383,14 +387,11 @@ static void fsl_qdma_comp_fill_memcpy(struct fsl_qdma_comp *fsl_comp,
/* This entry is the last entry. */
qdma_csgf_set_f(csgf_dest, len);
/* Descriptor Buffer */
cmd = cpu_to_le32(FSL_QDMA_CMD_RWTTYPE <<
FSL_QDMA_CMD_RWTTYPE_OFFSET);
sdf->data = QDMA_SDDF_CMD(cmd);
sdf->cmd = cpu_to_le32((FSL_QDMA_CMD_RWTTYPE << FSL_QDMA_CMD_RWTTYPE_OFFSET) |
FSL_QDMA_CMD_PF);
cmd = cpu_to_le32(FSL_QDMA_CMD_RWTTYPE <<
FSL_QDMA_CMD_RWTTYPE_OFFSET);
cmd |= cpu_to_le32(FSL_QDMA_CMD_LWC << FSL_QDMA_CMD_LWC_OFFSET);
ddf->data = QDMA_SDDF_CMD(cmd);
ddf->cmd = cpu_to_le32((FSL_QDMA_CMD_RWTTYPE << FSL_QDMA_CMD_RWTTYPE_OFFSET) |
(FSL_QDMA_CMD_LWC << FSL_QDMA_CMD_LWC_OFFSET));
}
/*
@ -624,7 +625,7 @@ static int fsl_qdma_halt(struct fsl_qdma_engine *fsl_qdma)
static int
fsl_qdma_queue_transfer_complete(struct fsl_qdma_engine *fsl_qdma,
void *block,
__iomem void *block,
int id)
{
bool duplicate;
@ -1196,10 +1197,6 @@ static int fsl_qdma_probe(struct platform_device *pdev)
if (!fsl_qdma->queue)
return -ENOMEM;
ret = fsl_qdma_irq_init(pdev, fsl_qdma);
if (ret)
return ret;
fsl_qdma->irq_base = platform_get_irq_byname(pdev, "qdma-queue0");
if (fsl_qdma->irq_base < 0)
return fsl_qdma->irq_base;
@ -1238,19 +1235,22 @@ static int fsl_qdma_probe(struct platform_device *pdev)
platform_set_drvdata(pdev, fsl_qdma);
ret = dma_async_device_register(&fsl_qdma->dma_dev);
if (ret) {
dev_err(&pdev->dev,
"Can't register NXP Layerscape qDMA engine.\n");
return ret;
}
ret = fsl_qdma_reg_init(fsl_qdma);
if (ret) {
dev_err(&pdev->dev, "Can't Initialize the qDMA engine.\n");
return ret;
}
ret = fsl_qdma_irq_init(pdev, fsl_qdma);
if (ret)
return ret;
ret = dma_async_device_register(&fsl_qdma->dma_dev);
if (ret) {
dev_err(&pdev->dev, "Can't register NXP Layerscape qDMA engine.\n");
return ret;
}
return 0;
}

2
drivers/dma/idxd/cdev.c
View File

@ -345,7 +345,7 @@ static void idxd_cdev_evl_drain_pasid(struct idxd_wq *wq, u32 pasid)
spin_lock(&evl->lock);
status.bits = ioread64(idxd->reg_base + IDXD_EVLSTATUS_OFFSET);
t = status.tail;
h = evl->head;
h = status.head;
size = evl->size;
while (h != t) {

2
drivers/dma/idxd/debugfs.c
View File

@ -68,9 +68,9 @@ static int debugfs_evl_show(struct seq_file *s, void *d)
spin_lock(&evl->lock);
h = evl->head;
evl_status.bits = ioread64(idxd->reg_base + IDXD_EVLSTATUS_OFFSET);
t = evl_status.tail;
h = evl_status.head;
evl_size = evl->size;
seq_printf(s, "Event Log head %u tail %u interrupt pending %u\n\n",

1
drivers/dma/idxd/idxd.h
View File

@ -300,7 +300,6 @@ struct idxd_evl {
unsigned int log_size;
/* The number of entries in the event log. */
u16 size;
u16 head;
unsigned long *bmap;
bool batch_fail[IDXD_MAX_BATCH_IDENT];
};

15
drivers/dma/idxd/init.c
View File

@ -343,7 +343,9 @@ static void idxd_cleanup_internals(struct idxd_device *idxd)
static int idxd_init_evl(struct idxd_device *idxd)
{
struct device *dev = &idxd->pdev->dev;
unsigned int evl_cache_size;
struct idxd_evl *evl;
const char *idxd_name;
if (idxd->hw.gen_cap.evl_support == 0)
return 0;
@ -355,9 +357,16 @@ static int idxd_init_evl(struct idxd_device *idxd)
spin_lock_init(&evl->lock);
evl->size = IDXD_EVL_SIZE_MIN;
idxd->evl_cache = kmem_cache_create(dev_name(idxd_confdev(idxd)),
sizeof(struct idxd_evl_fault) + evl_ent_size(idxd),
0, 0, NULL);
idxd_name = dev_name(idxd_confdev(idxd));
evl_cache_size = sizeof(struct idxd_evl_fault) + evl_ent_size(idxd);
/*
* Since completion record in evl_cache will be copied to user
* when handling completion record page fault, need to create
* the cache suitable for user copy.
*/
idxd->evl_cache = kmem_cache_create_usercopy(idxd_name, evl_cache_size,
0, 0, 0, evl_cache_size,
NULL);
if (!idxd->evl_cache) {
kfree(evl);
return -ENOMEM;

3
drivers/dma/idxd/irq.c
View File

@ -367,9 +367,9 @@ static void process_evl_entries(struct idxd_device *idxd)
/* Clear interrupt pending bit */
iowrite32(evl_status.bits_upper32,
idxd->reg_base + IDXD_EVLSTATUS_OFFSET + sizeof(u32));
h = evl->head;
evl_status.bits = ioread64(idxd->reg_base + IDXD_EVLSTATUS_OFFSET);
t = evl_status.tail;
h = evl_status.head;
size = idxd->evl->size;
while (h != t) {
@ -378,7 +378,6 @@ static void process_evl_entries(struct idxd_device *idxd)
h = (h + 1) % size;
}
evl->head = h;
evl_status.head = h;
iowrite32(evl_status.bits_lower32, idxd->reg_base + IDXD_EVLSTATUS_OFFSET);
spin_unlock(&evl->lock);

2
drivers/dma/ptdma/ptdma-dmaengine.c
View File

@ -385,8 +385,6 @@ int pt_dmaengine_register(struct pt_device *pt)
chan->vc.desc_free = pt_do_cleanup;
vchan_init(&chan->vc, dma_dev);
dma_set_mask_and_coherent(pt->dev, DMA_BIT_MASK(64));
ret = dma_async_device_register(dma_dev);
if (ret)
goto err_reg;

25
drivers/dpll/dpll_core.c
View File

@ -44,11 +44,6 @@ struct dpll_pin_registration {
void *priv;
};
struct dpll_pin *netdev_dpll_pin(const struct net_device *dev)
{
return rcu_dereference_rtnl(dev->dpll_pin);
}
struct dpll_device *dpll_device_get_by_id(int id)
{
if (xa_get_mark(&dpll_device_xa, id, DPLL_REGISTERED))
@ -515,6 +510,26 @@ err_pin_prop:
return ERR_PTR(ret);
}
static void dpll_netdev_pin_assign(struct net_device *dev, struct dpll_pin *dpll_pin)
{
rtnl_lock();
rcu_assign_pointer(dev->dpll_pin, dpll_pin);
rtnl_unlock();
}
void dpll_netdev_pin_set(struct net_device *dev, struct dpll_pin *dpll_pin)
{
WARN_ON(!dpll_pin);
dpll_netdev_pin_assign(dev, dpll_pin);
}
EXPORT_SYMBOL(dpll_netdev_pin_set);
void dpll_netdev_pin_clear(struct net_device *dev)
{
dpll_netdev_pin_assign(dev, NULL);
}
EXPORT_SYMBOL(dpll_netdev_pin_clear);
/**
* dpll_pin_get - find existing or create new dpll pin
* @clock_id: clock_id of creator

38
drivers/dpll/dpll_netlink.c
View File

@ -8,6 +8,7 @@
*/
#include <linux/module.h>
#include <linux/kernel.h>
#include <linux/netdevice.h>
#include <net/genetlink.h>
#include "dpll_core.h"
#include "dpll_netlink.h"
@ -47,18 +48,6 @@ dpll_msg_add_dev_parent_handle(struct sk_buff *msg, u32 id)
return 0;
}
/**
* dpll_msg_pin_handle_size - get size of pin handle attribute for given pin
* @pin: pin pointer
*
* Return: byte size of pin handle attribute for given pin.
*/
size_t dpll_msg_pin_handle_size(struct dpll_pin *pin)
{
return pin ? nla_total_size(4) : 0; /* DPLL_A_PIN_ID */
}
EXPORT_SYMBOL_GPL(dpll_msg_pin_handle_size);
/**
* dpll_msg_add_pin_handle - attach pin handle attribute to a given message
* @msg: pointer to sk_buff message to attach a pin handle
@ -68,7 +57,7 @@ EXPORT_SYMBOL_GPL(dpll_msg_pin_handle_size);
* * 0 - success
* * -EMSGSIZE - no space in message to attach pin handle
*/
int dpll_msg_add_pin_handle(struct sk_buff *msg, struct dpll_pin *pin)
static int dpll_msg_add_pin_handle(struct sk_buff *msg, struct dpll_pin *pin)
{
if (!pin)
return 0;
@ -76,7 +65,28 @@ int dpll_msg_add_pin_handle(struct sk_buff *msg, struct dpll_pin *pin)
return -EMSGSIZE;
return 0;
}
EXPORT_SYMBOL_GPL(dpll_msg_add_pin_handle);
static struct dpll_pin *dpll_netdev_pin(const struct net_device *dev)
{
return rcu_dereference_rtnl(dev->dpll_pin);
}
/**
* dpll_netdev_pin_handle_size - get size of pin handle attribute of a netdev
* @dev: netdev from which to get the pin
*
* Return: byte size of pin handle attribute, or 0 if @dev has no pin.
*/
size_t dpll_netdev_pin_handle_size(const struct net_device *dev)
{
return dpll_netdev_pin(dev) ? nla_total_size(4) : 0; /* DPLL_A_PIN_ID */
}
int dpll_netdev_add_pin_handle(struct sk_buff *msg,
const struct net_device *dev)
{
return dpll_msg_add_pin_handle(msg, dpll_netdev_pin(dev));
}
static int
dpll_msg_add_mode(struct sk_buff *msg, struct dpll_device *dpll,

14
drivers/firewire/core-card.c
View File

@ -500,7 +500,19 @@ static void bm_work(struct work_struct *work)
fw_notice(card, "phy config: new root=%x, gap_count=%d\n",
new_root_id, gap_count);
fw_send_phy_config(card, new_root_id, generation, gap_count);
reset_bus(card, true);
/*
* Where possible, use a short bus reset to minimize
* disruption to isochronous transfers. But in the event
* of a gap count inconsistency, use a long bus reset.
*
* As noted in 1394a 8.4.6.2, nodes on a mixed 1394/1394a bus
* may set different gap counts after a bus reset. On a mixed
* 1394/1394a bus, a short bus reset can get doubled. Some
* nodes may treat the double reset as one bus reset and others
* may treat it as two, causing a gap count inconsistency
* again. Using a long bus reset prevents this.
*/
reset_bus(card, card->gap_count != 0);
/* Will allocate broadcast channel after the reset. */
goto out;
}

2
drivers/firmware/efi/capsule-loader.c
View File

@ -292,7 +292,7 @@ static int efi_capsule_open(struct inode *inode, struct file *file)
return -ENOMEM;
}
cap_info->phys = kzalloc(sizeof(void *), GFP_KERNEL);
cap_info->phys = kzalloc(sizeof(phys_addr_t), GFP_KERNEL);
if (!cap_info->phys) {
kfree(cap_info->pages);
kfree(cap_info);

3
drivers/firmware/microchip/mpfs-auto-update.c
View File

@ -384,7 +384,8 @@ static int mpfs_auto_update_available(struct mpfs_auto_update_priv *priv)
u32 *response_msg;
int ret;
response_msg = devm_kzalloc(priv->dev, AUTO_UPDATE_FEATURE_RESP_SIZE * sizeof(response_msg),
response_msg = devm_kzalloc(priv->dev,
AUTO_UPDATE_FEATURE_RESP_SIZE * sizeof(*response_msg),
GFP_KERNEL);
if (!response_msg)
return -ENOMEM;

4
drivers/gpio/gpio-74x164.c
View File

@ -127,8 +127,6 @@ static int gen_74x164_probe(struct spi_device *spi)
if (IS_ERR(chip->gpiod_oe))
return PTR_ERR(chip->gpiod_oe);
gpiod_set_value_cansleep(chip->gpiod_oe, 1);
spi_set_drvdata(spi, chip);
chip->gpio_chip.label = spi->modalias;
@ -153,6 +151,8 @@ static int gen_74x164_probe(struct spi_device *spi)
goto exit_destroy;
}
gpiod_set_value_cansleep(chip->gpiod_oe, 1);
ret = gpiochip_add_data(&chip->gpio_chip, chip);
if (!ret)
return 0;

12
drivers/gpio/gpiolib.c
View File

@ -968,11 +968,11 @@ int gpiochip_add_data_with_key(struct gpio_chip *gc, void *data,
ret = gpiochip_irqchip_init_valid_mask(gc);
if (ret)
goto err_remove_acpi_chip;
goto err_free_hogs;
ret = gpiochip_irqchip_init_hw(gc);
if (ret)
goto err_remove_acpi_chip;
goto err_remove_irqchip_mask;
ret = gpiochip_add_irqchip(gc, lock_key, request_key);
if (ret)
@ -997,13 +997,13 @@ err_remove_irqchip:
gpiochip_irqchip_remove(gc);
err_remove_irqchip_mask:
gpiochip_irqchip_free_valid_mask(gc);
err_remove_acpi_chip:
acpi_gpiochip_remove(gc);
err_remove_of_chip:
err_free_hogs:
gpiochip_free_hogs(gc);
acpi_gpiochip_remove(gc);
gpiochip_remove_pin_ranges(gc);
err_remove_of_chip:
of_gpiochip_remove(gc);
err_free_gpiochip_mask:
gpiochip_remove_pin_ranges(gc);
gpiochip_free_valid_mask(gc);
err_remove_from_list:
spin_lock_irqsave(&gpio_lock, flags);

5
drivers/gpu/drm/Kconfig
View File

@ -199,7 +199,7 @@ config DRM_TTM
config DRM_TTM_KUNIT_TEST
tristate "KUnit tests for TTM" if !KUNIT_ALL_TESTS
default n
depends on DRM && KUNIT && MMU
depends on DRM && KUNIT && MMU && (UML || COMPILE_TEST)
select DRM_TTM
select DRM_EXPORT_FOR_TESTS if m
select DRM_KUNIT_TEST_HELPERS
@ -207,7 +207,8 @@ config DRM_TTM_KUNIT_TEST
help
Enables unit tests for TTM, a GPU memory manager subsystem used
to manage memory buffers. This option is mostly useful for kernel
developers.
developers. It depends on (UML || COMPILE_TEST) since no other driver
which uses TTM can be loaded while running the tests.
If in doubt, say "N".

45
drivers/gpu/drm/amd/amdgpu/soc15.c
View File

@ -574,11 +574,34 @@ soc15_asic_reset_method(struct amdgpu_device *adev)
return AMD_RESET_METHOD_MODE1;
}
static bool soc15_need_reset_on_resume(struct amdgpu_device *adev)
{
u32 sol_reg;
sol_reg = RREG32_SOC15(MP0, 0, mmMP0_SMN_C2PMSG_81);
/* Will reset for the following suspend abort cases.
* 1) Only reset limit on APU side, dGPU hasn't checked yet.
* 2) S3 suspend abort and TOS already launched.
*/
if (adev->flags & AMD_IS_APU && adev->in_s3 &&
!adev->suspend_complete &&
sol_reg)
return true;
return false;
}
static int soc15_asic_reset(struct amdgpu_device *adev)
{
/* original raven doesn't have full asic reset */
if ((adev->apu_flags & AMD_APU_IS_RAVEN) ||
(adev->apu_flags & AMD_APU_IS_RAVEN2))
/* On the latest Raven, the GPU reset can be performed
* successfully. So now, temporarily enable it for the
* S3 suspend abort case.
*/
if (((adev->apu_flags & AMD_APU_IS_RAVEN) ||
(adev->apu_flags & AMD_APU_IS_RAVEN2)) &&
!soc15_need_reset_on_resume(adev))
return 0;
switch (soc15_asic_reset_method(adev)) {
@ -1298,24 +1321,6 @@ static int soc15_common_suspend(void *handle)
return soc15_common_hw_fini(adev);
}
static bool soc15_need_reset_on_resume(struct amdgpu_device *adev)
{
u32 sol_reg;
sol_reg = RREG32_SOC15(MP0, 0, mmMP0_SMN_C2PMSG_81);
/* Will reset for the following suspend abort cases.
* 1) Only reset limit on APU side, dGPU hasn't checked yet.
* 2) S3 suspend abort and TOS already launched.
*/
if (adev->flags & AMD_IS_APU && adev->in_s3 &&
!adev->suspend_complete &&
sol_reg)
return true;
return false;
}
static int soc15_common_resume(void *handle)
{
struct amdgpu_device *adev = (struct amdgpu_device *)handle;

6
drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_helpers.c
View File

@ -67,6 +67,8 @@ static void apply_edid_quirks(struct edid *edid, struct dc_edid_caps *edid_caps)
/* Workaround for some monitors that do not clear DPCD 0x317 if FreeSync is unsupported */
case drm_edid_encode_panel_id('A', 'U', 'O', 0xA7AB):
case drm_edid_encode_panel_id('A', 'U', 'O', 0xE69B):
case drm_edid_encode_panel_id('B', 'O', 'E', 0x092A):
case drm_edid_encode_panel_id('L', 'G', 'D', 0x06D1):
DRM_DEBUG_DRIVER("Clearing DPCD 0x317 on monitor with panel id %X\n", panel_id);
edid_caps->panel_patch.remove_sink_ext_caps = true;
break;
@ -120,6 +122,8 @@ enum dc_edid_status dm_helpers_parse_edid_caps(
edid_caps->edid_hdmi = connector->display_info.is_hdmi;
apply_edid_quirks(edid_buf, edid_caps);
sad_count = drm_edid_to_sad((struct edid *) edid->raw_edid, &sads);
if (sad_count <= 0)
return result;
@ -146,8 +150,6 @@ enum dc_edid_status dm_helpers_parse_edid_caps(
else
edid_caps->speaker_flags = DEFAULT_SPEAKER_LOCATION;
apply_edid_quirks(edid_buf, edid_caps);
kfree(sads);
kfree(sadb);

5
drivers/gpu/drm/amd/display/dc/dml2/dml2_wrapper.c
View File

@ -76,6 +76,11 @@ static void map_hw_resources(struct dml2_context *dml2,
in_out_display_cfg->hw.DLGRefClkFreqMHz = 50;
}
for (j = 0; j < mode_support_info->DPPPerSurface[i]; j++) {
if (i >= __DML2_WRAPPER_MAX_STREAMS_PLANES__) {
dml_print("DML::%s: Index out of bounds: i=%d, __DML2_WRAPPER_MAX_STREAMS_PLANES__=%d\n",
__func__, i, __DML2_WRAPPER_MAX_STREAMS_PLANES__);
break;
}
dml2->v20.scratch.dml_to_dc_pipe_mapping.dml_pipe_idx_to_stream_id[num_pipes] = dml2->v20.scratch.dml_to_dc_pipe_mapping.disp_cfg_to_stream_id[i];
dml2->v20.scratch.dml_to_dc_pipe_mapping.dml_pipe_idx_to_stream_id_valid[num_pipes] = true;
dml2->v20.scratch.dml_to_dc_pipe_mapping.dml_pipe_idx_to_plane_id[num_pipes] = dml2->v20.scratch.dml_to_dc_pipe_mapping.disp_cfg_to_plane_id[i];

29
drivers/gpu/drm/amd/pm/legacy-dpm/si_dpm.c
View File

@ -6925,6 +6925,23 @@ static int si_dpm_enable(struct amdgpu_device *adev)
return 0;
}
static int si_set_temperature_range(struct amdgpu_device *adev)
{
int ret;
ret = si_thermal_enable_alert(adev, false);
if (ret)
return ret;
ret = si_thermal_set_temperature_range(adev, R600_TEMP_RANGE_MIN, R600_TEMP_RANGE_MAX);
if (ret)
return ret;
ret = si_thermal_enable_alert(adev, true);
if (ret)
return ret;
return ret;
}
static void si_dpm_disable(struct amdgpu_device *adev)
{
struct rv7xx_power_info *pi = rv770_get_pi(adev);
@ -7608,6 +7625,18 @@ static int si_dpm_process_interrupt(struct amdgpu_device *adev,
static int si_dpm_late_init(void *handle)
{
int ret;
struct amdgpu_device *adev = (struct amdgpu_device *)handle;
if (!adev->pm.dpm_enabled)
return 0;
ret = si_set_temperature_range(adev);
if (ret)
return ret;
#if 0 //TODO ?
si_dpm_powergate_uvd(adev, true);
#endif
return 0;
}

9
drivers/gpu/drm/amd/pm/swsmu/smu11/arcturus_ppt.c
View File

@ -1303,13 +1303,12 @@ static int arcturus_get_power_limit(struct smu_context *smu,
if (default_power_limit)
*default_power_limit = power_limit;
if (smu->od_enabled) {
if (smu->od_enabled)
od_percent_upper = le32_to_cpu(powerplay_table->overdrive_table.max[SMU_11_0_ODSETTING_POWERPERCENTAGE]);
od_percent_lower = le32_to_cpu(powerplay_table->overdrive_table.min[SMU_11_0_ODSETTING_POWERPERCENTAGE]);
} else {
else
od_percent_upper = 0;
od_percent_lower = 100;
}
od_percent_lower = le32_to_cpu(powerplay_table->overdrive_table.min[SMU_11_0_ODSETTING_POWERPERCENTAGE]);
dev_dbg(smu->adev->dev, "od percent upper:%d, od percent lower:%d (default power: %d)\n",
od_percent_upper, od_percent_lower, power_limit);

9
drivers/gpu/drm/amd/pm/swsmu/smu11/navi10_ppt.c
View File

@ -2357,13 +2357,12 @@ static int navi10_get_power_limit(struct smu_context *smu,
*default_power_limit = power_limit;
if (smu->od_enabled &&
navi10_od_feature_is_supported(od_settings, SMU_11_0_ODCAP_POWER_LIMIT)) {
navi10_od_feature_is_supported(od_settings, SMU_11_0_ODCAP_POWER_LIMIT))
od_percent_upper = le32_to_cpu(powerplay_table->overdrive_table.max[SMU_11_0_ODSETTING_POWERPERCENTAGE]);
od_percent_lower = le32_to_cpu(powerplay_table->overdrive_table.min[SMU_11_0_ODSETTING_POWERPERCENTAGE]);
} else {
else
od_percent_upper = 0;
od_percent_lower = 100;
}
od_percent_lower = le32_to_cpu(powerplay_table->overdrive_table.min[SMU_11_0_ODSETTING_POWERPERCENTAGE]);
dev_dbg(smu->adev->dev, "od percent upper:%d, od percent lower:%d (default power: %d)\n",
od_percent_upper, od_percent_lower, power_limit);

9
drivers/gpu/drm/amd/pm/swsmu/smu11/sienna_cichlid_ppt.c
View File

@ -640,13 +640,12 @@ static int sienna_cichlid_get_power_limit(struct smu_context *smu,
if (default_power_limit)
*default_power_limit = power_limit;
if (smu->od_enabled) {
if (smu->od_enabled)
od_percent_upper = le32_to_cpu(powerplay_table->overdrive_table.max[SMU_11_0_7_ODSETTING_POWERPERCENTAGE]);
od_percent_lower = le32_to_cpu(powerplay_table->overdrive_table.min[SMU_11_0_7_ODSETTING_POWERPERCENTAGE]);
} else {
else
od_percent_upper = 0;
od_percent_lower = 100;
}
od_percent_lower = le32_to_cpu(powerplay_table->overdrive_table.min[SMU_11_0_7_ODSETTING_POWERPERCENTAGE]);
dev_dbg(smu->adev->dev, "od percent upper:%d, od percent lower:%d (default power: %d)\n",
od_percent_upper, od_percent_lower, power_limit);

9
drivers/gpu/drm/amd/pm/swsmu/smu13/smu_v13_0_0_ppt.c
View File

@ -2369,13 +2369,12 @@ static int smu_v13_0_0_get_power_limit(struct smu_context *smu,
if (default_power_limit)
*default_power_limit = power_limit;
if (smu->od_enabled) {
if (smu->od_enabled)
od_percent_upper = le32_to_cpu(powerplay_table->overdrive_table.max[SMU_13_0_0_ODSETTING_POWERPERCENTAGE]);
od_percent_lower = le32_to_cpu(powerplay_table->overdrive_table.min[SMU_13_0_0_ODSETTING_POWERPERCENTAGE]);
} else {
else
od_percent_upper = 0;
od_percent_lower = 100;
}
od_percent_lower = le32_to_cpu(powerplay_table->overdrive_table.min[SMU_13_0_0_ODSETTING_POWERPERCENTAGE]);
dev_dbg(smu->adev->dev, "od percent upper:%d, od percent lower:%d (default power: %d)\n",
od_percent_upper, od_percent_lower, power_limit);

9
drivers/gpu/drm/amd/pm/swsmu/smu13/smu_v13_0_7_ppt.c
View File

@ -2333,13 +2333,12 @@ static int smu_v13_0_7_get_power_limit(struct smu_context *smu,
if (default_power_limit)
*default_power_limit = power_limit;
if (smu->od_enabled) {
if (smu->od_enabled)
od_percent_upper = le32_to_cpu(powerplay_table->overdrive_table.max[SMU_13_0_7_ODSETTING_POWERPERCENTAGE]);
od_percent_lower = le32_to_cpu(powerplay_table->overdrive_table.min[SMU_13_0_7_ODSETTING_POWERPERCENTAGE]);
} else {
else
od_percent_upper = 0;
od_percent_lower = 100;
}
od_percent_lower = le32_to_cpu(powerplay_table->overdrive_table.min[SMU_13_0_7_ODSETTING_POWERPERCENTAGE]);
dev_dbg(smu->adev->dev, "od percent upper:%d, od percent lower:%d (default power: %d)\n",
od_percent_upper, od_percent_lower, power_limit);

68
drivers/gpu/drm/bridge/aux-hpd-bridge.c
View File

@ -25,20 +25,18 @@ static void drm_aux_hpd_bridge_release(struct device *dev)
ida_free(&drm_aux_hpd_bridge_ida, adev->id);
of_node_put(adev->dev.platform_data);
of_node_put(adev->dev.of_node);
kfree(adev);
}
static void drm_aux_hpd_bridge_unregister_adev(void *_adev)
static void drm_aux_hpd_bridge_free_adev(void *_adev)
{
struct auxiliary_device *adev = _adev;
auxiliary_device_delete(adev);
auxiliary_device_uninit(adev);
auxiliary_device_uninit(_adev);
}
/**
* drm_dp_hpd_bridge_register - Create a simple HPD DisplayPort bridge
* devm_drm_dp_hpd_bridge_alloc - allocate a HPD DisplayPort bridge
* @parent: device instance providing this bridge
* @np: device node pointer corresponding to this bridge instance
*
@ -46,11 +44,9 @@ static void drm_aux_hpd_bridge_unregister_adev(void *_adev)
* DRM_MODE_CONNECTOR_DisplayPort, which terminates the bridge chain and is
* able to send the HPD events.
*
* Return: device instance that will handle created bridge or an error code
* encoded into the pointer.
* Return: bridge auxiliary device pointer or an error pointer
*/
struct device *drm_dp_hpd_bridge_register(struct device *parent,
struct device_node *np)
struct auxiliary_device *devm_drm_dp_hpd_bridge_alloc(struct device *parent, struct device_node *np)
{
struct auxiliary_device *adev;
int ret;
@ -74,18 +70,62 @@ struct device *drm_dp_hpd_bridge_register(struct device *parent,
ret = auxiliary_device_init(adev);
if (ret) {
of_node_put(adev->dev.platform_data);
of_node_put(adev->dev.of_node);
ida_free(&drm_aux_hpd_bridge_ida, adev->id);
kfree(adev);
return ERR_PTR(ret);
}
ret = auxiliary_device_add(adev);
if (ret) {
auxiliary_device_uninit(adev);
ret = devm_add_action_or_reset(parent, drm_aux_hpd_bridge_free_adev, adev);
if (ret)
return ERR_PTR(ret);
return adev;
}
EXPORT_SYMBOL_GPL(devm_drm_dp_hpd_bridge_alloc);
static void drm_aux_hpd_bridge_del_adev(void *_adev)
{
auxiliary_device_delete(_adev);
}
ret = devm_add_action_or_reset(parent, drm_aux_hpd_bridge_unregister_adev, adev);
/**
* devm_drm_dp_hpd_bridge_add - register a HDP DisplayPort bridge
* @dev: struct device to tie registration lifetime to
* @adev: bridge auxiliary device to be registered
*
* Returns: zero on success or a negative errno
*/
int devm_drm_dp_hpd_bridge_add(struct device *dev, struct auxiliary_device *adev)
{
int ret;
ret = auxiliary_device_add(adev);
if (ret)
return ret;
return devm_add_action_or_reset(dev, drm_aux_hpd_bridge_del_adev, adev);
}
EXPORT_SYMBOL_GPL(devm_drm_dp_hpd_bridge_add);
/**
* drm_dp_hpd_bridge_register - allocate and register a HDP DisplayPort bridge
* @parent: device instance providing this bridge
* @np: device node pointer corresponding to this bridge instance
*
* Return: device instance that will handle created bridge or an error pointer
*/
struct device *drm_dp_hpd_bridge_register(struct device *parent, struct device_node *np)
{
struct auxiliary_device *adev;
int ret;
adev = devm_drm_dp_hpd_bridge_alloc(parent, np);
if (IS_ERR(adev))
return ERR_CAST(adev);
ret = devm_drm_dp_hpd_bridge_add(parent, adev);
if (ret)
return ERR_PTR(ret);

16
drivers/gpu/drm/drm_buddy.c
View File

@ -332,6 +332,7 @@ alloc_range_bias(struct drm_buddy *mm,
u64 start, u64 end,
unsigned int order)
{
u64 req_size = mm->chunk_size << order;
struct drm_buddy_block *block;
struct drm_buddy_block *buddy;
LIST_HEAD(dfs);
@ -367,6 +368,15 @@ alloc_range_bias(struct drm_buddy *mm,
if (drm_buddy_block_is_allocated(block))
continue;
if (block_start < start || block_end > end) {
u64 adjusted_start = max(block_start, start);
u64 adjusted_end = min(block_end, end);
if (round_down(adjusted_end + 1, req_size) <=
round_up(adjusted_start, req_size))
continue;
}
if (contains(start, end, block_start, block_end) &&
order == drm_buddy_block_order(block)) {
/*
@ -761,8 +771,12 @@ int drm_buddy_alloc_blocks(struct drm_buddy *mm,
return -EINVAL;
/* Actual range allocation */
if (start + size == end)
if (start + size == end) {
if (!IS_ALIGNED(start | end, min_block_size))
return -EINVAL;
return __drm_buddy_alloc_range(mm, start, size, NULL, blocks);
}
original_size = size;
original_min_size = min_block_size;

20
drivers/gpu/drm/msm/dp/dp_display.c
View File

@ -329,10 +329,26 @@ static const struct component_ops dp_display_comp_ops = {
.unbind = dp_display_unbind,
};
static void dp_display_send_hpd_event(struct msm_dp *dp_display)
{
struct dp_display_private *dp;
struct drm_connector *connector;
dp = container_of(dp_display, struct dp_display_private, dp_display);
connector = dp->dp_display.connector;
drm_helper_hpd_irq_event(connector->dev);
}
static int dp_display_send_hpd_notification(struct dp_display_private *dp,
bool hpd)
{
struct drm_bridge *bridge = dp->dp_display.bridge;
if ((hpd && dp->dp_display.link_ready) ||
(!hpd && !dp->dp_display.link_ready)) {
drm_dbg_dp(dp->drm_dev, "HPD already %s\n",
(hpd ? "on" : "off"));
return 0;
}
/* reset video pattern flag on disconnect */
if (!hpd) {
@ -348,7 +364,7 @@ static int dp_display_send_hpd_notification(struct dp_display_private *dp,
drm_dbg_dp(dp->drm_dev, "type=%d hpd=%d\n",
dp->dp_display.connector_type, hpd);
drm_bridge_hpd_notify(bridge, dp->dp_display.link_ready);
dp_display_send_hpd_event(&dp->dp_display);
return 0;
}

2
drivers/gpu/drm/nouveau/nouveau_abi16.c
View File

@ -269,7 +269,7 @@ nouveau_abi16_ioctl_getparam(ABI16_IOCTL_ARGS)
break;
case NOUVEAU_GETPARAM_VRAM_USED: {
struct ttm_resource_manager *vram_mgr = ttm_manager_type(&drm->ttm.bdev, TTM_PL_VRAM);
getparam->value = (u64)ttm_resource_manager_usage(vram_mgr) << PAGE_SHIFT;
getparam->value = (u64)ttm_resource_manager_usage(vram_mgr);
break;
}
default:

4
drivers/gpu/drm/nouveau/nvkm/subdev/gsp/r535.c
View File

@ -1054,8 +1054,6 @@ r535_gsp_postinit(struct nvkm_gsp *gsp)
/* Release the DMA buffers that were needed only for boot and init */
nvkm_gsp_mem_dtor(gsp, &gsp->boot.fw);
nvkm_gsp_mem_dtor(gsp, &gsp->libos);
nvkm_gsp_mem_dtor(gsp, &gsp->rmargs);
nvkm_gsp_mem_dtor(gsp, &gsp->wpr_meta);
return ret;
}
@ -2163,6 +2161,8 @@ r535_gsp_dtor(struct nvkm_gsp *gsp)
r535_gsp_dtor_fws(gsp);
nvkm_gsp_mem_dtor(gsp, &gsp->rmargs);
nvkm_gsp_mem_dtor(gsp, &gsp->wpr_meta);
nvkm_gsp_mem_dtor(gsp, &gsp->shm.mem);
nvkm_gsp_mem_dtor(gsp, &gsp->loginit);
nvkm_gsp_mem_dtor(gsp, &gsp->logintr);

17
drivers/gpu/drm/tegra/drm.c
View File

@ -1243,9 +1243,26 @@ static int host1x_drm_probe(struct host1x_device *dev)
drm_mode_config_reset(drm);
/*
* Only take over from a potential firmware framebuffer if any CRTCs
* have been registered. This must not be a fatal error because there
* are other accelerators that are exposed via this driver.
*
* Another case where this happens is on Tegra234 where the display
* hardware is no longer part of the host1x complex, so this driver
* will not expose any modesetting features.
*/
if (drm->mode_config.num_crtc > 0) {
err = drm_aperture_remove_framebuffers(&tegra_drm_driver);
if (err < 0)
goto hub;
} else {
/*
* Indicate to userspace that this doesn't expose any display
* capabilities.
*/
drm->driver_features &= ~(DRIVER_MODESET | DRIVER_ATOMIC);
}
err = drm_dev_register(drm, 0);
if (err < 0)

218
drivers/gpu/drm/tests/drm_buddy_test.c
View File

@ -14,11 +14,216 @@
#include "../lib/drm_random.h"
static unsigned int random_seed;
static inline u64 get_size(int order, u64 chunk_size)
{
return (1 << order) * chunk_size;
}
static void drm_test_buddy_alloc_range_bias(struct kunit *test)
{
u32 mm_size, ps, bias_size, bias_start, bias_end, bias_rem;
DRM_RND_STATE(prng, random_seed);
unsigned int i, count, *order;
struct drm_buddy mm;
LIST_HEAD(allocated);
bias_size = SZ_1M;
ps = roundup_pow_of_two(prandom_u32_state(&prng) % bias_size);
ps = max(SZ_4K, ps);
mm_size = (SZ_8M-1) & ~(ps-1); /* Multiple roots */
kunit_info(test, "mm_size=%u, ps=%u\n", mm_size, ps);
KUNIT_ASSERT_FALSE_MSG(test, drm_buddy_init(&mm, mm_size, ps),
"buddy_init failed\n");
count = mm_size / bias_size;
order = drm_random_order(count, &prng);
KUNIT_EXPECT_TRUE(test, order);
/*
* Idea is to split the address space into uniform bias ranges, and then
* in some random order allocate within each bias, using various
* patterns within. This should detect if allocations leak out from a
* given bias, for example.
*/
for (i = 0; i < count; i++) {
LIST_HEAD(tmp);
u32 size;
bias_start = order[i] * bias_size;
bias_end = bias_start + bias_size;
bias_rem = bias_size;
/* internal round_up too big */
KUNIT_ASSERT_TRUE_MSG(test,
drm_buddy_alloc_blocks(&mm, bias_start,
bias_end, bias_size + ps, bias_size,
&allocated,
DRM_BUDDY_RANGE_ALLOCATION),
"buddy_alloc failed with bias(%x-%x), size=%u, ps=%u\n",
bias_start, bias_end, bias_size, bias_size);
/* size too big */
KUNIT_ASSERT_TRUE_MSG(test,
drm_buddy_alloc_blocks(&mm, bias_start,
bias_end, bias_size + ps, ps,
&allocated,
DRM_BUDDY_RANGE_ALLOCATION),
"buddy_alloc didn't fail with bias(%x-%x), size=%u, ps=%u\n",
bias_start, bias_end, bias_size + ps, ps);
/* bias range too small for size */
KUNIT_ASSERT_TRUE_MSG(test,
drm_buddy_alloc_blocks(&mm, bias_start + ps,
bias_end, bias_size, ps,
&allocated,
DRM_BUDDY_RANGE_ALLOCATION),
"buddy_alloc didn't fail with bias(%x-%x), size=%u, ps=%u\n",
bias_start + ps, bias_end, bias_size, ps);
/* bias misaligned */
KUNIT_ASSERT_TRUE_MSG(test,
drm_buddy_alloc_blocks(&mm, bias_start + ps,
bias_end - ps,
bias_size >> 1, bias_size >> 1,
&allocated,
DRM_BUDDY_RANGE_ALLOCATION),
"buddy_alloc h didn't fail with bias(%x-%x), size=%u, ps=%u\n",
bias_start + ps, bias_end - ps, bias_size >> 1, bias_size >> 1);
/* single big page */
KUNIT_ASSERT_FALSE_MSG(test,
drm_buddy_alloc_blocks(&mm, bias_start,
bias_end, bias_size, bias_size,
&tmp,
DRM_BUDDY_RANGE_ALLOCATION),
"buddy_alloc i failed with bias(%x-%x), size=%u, ps=%u\n",
bias_start, bias_end, bias_size, bias_size);
drm_buddy_free_list(&mm, &tmp);
/* single page with internal round_up */
KUNIT_ASSERT_FALSE_MSG(test,
drm_buddy_alloc_blocks(&mm, bias_start,
bias_end, ps, bias_size,
&tmp,
DRM_BUDDY_RANGE_ALLOCATION),
"buddy_alloc failed with bias(%x-%x), size=%u, ps=%u\n",
bias_start, bias_end, ps, bias_size);
drm_buddy_free_list(&mm, &tmp);
/* random size within */
size = max(round_up(prandom_u32_state(&prng) % bias_rem, ps), ps);
if (size)
KUNIT_ASSERT_FALSE_MSG(test,
drm_buddy_alloc_blocks(&mm, bias_start,
bias_end, size, ps,
&tmp,
DRM_BUDDY_RANGE_ALLOCATION),
"buddy_alloc failed with bias(%x-%x), size=%u, ps=%u\n",
bias_start, bias_end, size, ps);
bias_rem -= size;
/* too big for current avail */
KUNIT_ASSERT_TRUE_MSG(test,
drm_buddy_alloc_blocks(&mm, bias_start,
bias_end, bias_rem + ps, ps,
&allocated,
DRM_BUDDY_RANGE_ALLOCATION),
"buddy_alloc didn't fail with bias(%x-%x), size=%u, ps=%u\n",
bias_start, bias_end, bias_rem + ps, ps);
if (bias_rem) {
/* random fill of the remainder */
size = max(round_up(prandom_u32_state(&prng) % bias_rem, ps), ps);
size = max(size, ps);
KUNIT_ASSERT_FALSE_MSG(test,
drm_buddy_alloc_blocks(&mm, bias_start,
bias_end, size, ps,
&allocated,
DRM_BUDDY_RANGE_ALLOCATION),
"buddy_alloc failed with bias(%x-%x), size=%u, ps=%u\n",
bias_start, bias_end, size, ps);
/*
* Intentionally allow some space to be left
* unallocated, and ideally not always on the bias
* boundaries.
*/
drm_buddy_free_list(&mm, &tmp);
} else {
list_splice_tail(&tmp, &allocated);
}
}
kfree(order);
drm_buddy_free_list(&mm, &allocated);
drm_buddy_fini(&mm);
/*
* Something more free-form. Idea is to pick a random starting bias
* range within the address space and then start filling it up. Also
* randomly grow the bias range in both directions as we go along. This
* should give us bias start/end which is not always uniform like above,
* and in some cases will require the allocator to jump over already
* allocated nodes in the middle of the address space.
*/
KUNIT_ASSERT_FALSE_MSG(test, drm_buddy_init(&mm, mm_size, ps),
"buddy_init failed\n");
bias_start = round_up(prandom_u32_state(&prng) % (mm_size - ps), ps);
bias_end = round_up(bias_start + prandom_u32_state(&prng) % (mm_size - bias_start), ps);
bias_end = max(bias_end, bias_start + ps);
bias_rem = bias_end - bias_start;
do {
u32 size = max(round_up(prandom_u32_state(&prng) % bias_rem, ps), ps);
KUNIT_ASSERT_FALSE_MSG(test,
drm_buddy_alloc_blocks(&mm, bias_start,
bias_end, size, ps,
&allocated,
DRM_BUDDY_RANGE_ALLOCATION),
"buddy_alloc failed with bias(%x-%x), size=%u, ps=%u\n",
bias_start, bias_end, size);
bias_rem -= size;
/*
* Try to randomly grow the bias range in both directions, or
* only one, or perhaps don't grow at all.
*/
do {
u32 old_bias_start = bias_start;
u32 old_bias_end = bias_end;
if (bias_start)
bias_start -= round_up(prandom_u32_state(&prng) % bias_start, ps);
if (bias_end != mm_size)
bias_end += round_up(prandom_u32_state(&prng) % (mm_size - bias_end), ps);
bias_rem += old_bias_start - bias_start;
bias_rem += bias_end - old_bias_end;
} while (!bias_rem && (bias_start || bias_end != mm_size));
} while (bias_rem);
KUNIT_ASSERT_EQ(test, bias_start, 0);
KUNIT_ASSERT_EQ(test, bias_end, mm_size);
KUNIT_ASSERT_TRUE_MSG(test,
drm_buddy_alloc_blocks(&mm, bias_start, bias_end,
ps, ps,
&allocated,
DRM_BUDDY_RANGE_ALLOCATION),
"buddy_alloc passed with bias(%x-%x), size=%u\n",
bias_start, bias_end, ps);
drm_buddy_free_list(&mm, &allocated);
drm_buddy_fini(&mm);
}
static void drm_test_buddy_alloc_contiguous(struct kunit *test)
{
const unsigned long ps = SZ_4K, mm_size = 16 * 3 * SZ_4K;
@ -362,17 +567,30 @@ static void drm_test_buddy_alloc_limit(struct kunit *test)
drm_buddy_fini(&mm);
}
static int drm_buddy_suite_init(struct kunit_suite *suite)
{
while (!random_seed)
random_seed = get_random_u32();
kunit_info(suite, "Testing DRM buddy manager, with random_seed=0x%x\n",
random_seed);
return 0;
}
static struct kunit_case drm_buddy_tests[] = {
KUNIT_CASE(drm_test_buddy_alloc_limit),
KUNIT_CASE(drm_test_buddy_alloc_optimistic),
KUNIT_CASE(drm_test_buddy_alloc_pessimistic),
KUNIT_CASE(drm_test_buddy_alloc_pathological),
KUNIT_CASE(drm_test_buddy_alloc_contiguous),
KUNIT_CASE(drm_test_buddy_alloc_range_bias),
{}
};
static struct kunit_suite drm_buddy_test_suite = {
.name = "drm_buddy",
.suite_init = drm_buddy_suite_init,
.test_cases = drm_buddy_tests,
};

11
drivers/gpu/drm/xe/xe_bo.c
View File

@ -28,6 +28,14 @@
#include "xe_ttm_stolen_mgr.h"
#include "xe_vm.h"
const char *const xe_mem_type_to_name[TTM_NUM_MEM_TYPES] = {
[XE_PL_SYSTEM] = "system",
[XE_PL_TT] = "gtt",
[XE_PL_VRAM0] = "vram0",
[XE_PL_VRAM1] = "vram1",
[XE_PL_STOLEN] = "stolen"
};
static const struct ttm_place sys_placement_flags = {
.fpfn = 0,
.lpfn = 0,
@ -713,8 +721,7 @@ static int xe_bo_move(struct ttm_buffer_object *ttm_bo, bool evict,
migrate = xe->tiles[0].migrate;
xe_assert(xe, migrate);
trace_xe_bo_move(bo);
trace_xe_bo_move(bo, new_mem->mem_type, old_mem_type, move_lacks_source);
xe_device_mem_access_get(xe);
if (xe_bo_is_pinned(bo) && !xe_bo_is_user(bo)) {

1
drivers/gpu/drm/xe/xe_bo.h
View File

@ -243,6 +243,7 @@ int xe_bo_evict_pinned(struct xe_bo *bo);
int xe_bo_restore_pinned(struct xe_bo *bo);
extern struct ttm_device_funcs xe_ttm_funcs;
extern const char *const xe_mem_type_to_name[];
int xe_gem_create_ioctl(struct drm_device *dev, void *data,
struct drm_file *file);

12
drivers/gpu/drm/xe/xe_drm_client.c
View File

@ -131,14 +131,6 @@ static void bo_meminfo(struct xe_bo *bo,
static void show_meminfo(struct drm_printer *p, struct drm_file *file)
{
static const char *const mem_type_to_name[TTM_NUM_MEM_TYPES] = {
[XE_PL_SYSTEM] = "system",
[XE_PL_TT] = "gtt",
[XE_PL_VRAM0] = "vram0",
[XE_PL_VRAM1] = "vram1",
[4 ... 6] = NULL,
[XE_PL_STOLEN] = "stolen"
};
struct drm_memory_stats stats[TTM_NUM_MEM_TYPES] = {};
struct xe_file *xef = file->driver_priv;
struct ttm_device *bdev = &xef->xe->ttm;
@ -171,7 +163,7 @@ static void show_meminfo(struct drm_printer *p, struct drm_file *file)
spin_unlock(&client->bos_lock);
for (mem_type = XE_PL_SYSTEM; mem_type < TTM_NUM_MEM_TYPES; ++mem_type) {
if (!mem_type_to_name[mem_type])
if (!xe_mem_type_to_name[mem_type])
continue;
man = ttm_manager_type(bdev, mem_type);
@ -182,7 +174,7 @@ static void show_meminfo(struct drm_printer *p, struct drm_file *file)
DRM_GEM_OBJECT_RESIDENT |
(mem_type != XE_PL_SYSTEM ? 0 :
DRM_GEM_OBJECT_PURGEABLE),
mem_type_to_name[mem_type]);
xe_mem_type_to_name[mem_type]);
}
}
}

88
drivers/gpu/drm/xe/xe_exec_queue.c
View File

@ -309,85 +309,6 @@ static int exec_queue_set_timeslice(struct xe_device *xe, struct xe_exec_queue *
return q->ops->set_timeslice(q, value);
}
static int exec_queue_set_preemption_timeout(struct xe_device *xe,
struct xe_exec_queue *q, u64 value,
bool create)
{
u32 min = 0, max = 0;
xe_exec_queue_get_prop_minmax(q->hwe->eclass,
XE_EXEC_QUEUE_PREEMPT_TIMEOUT, &min, &max);
if (xe_exec_queue_enforce_schedule_limit() &&
!xe_hw_engine_timeout_in_range(value, min, max))
return -EINVAL;
return q->ops->set_preempt_timeout(q, value);
}
static int exec_queue_set_job_timeout(struct xe_device *xe, struct xe_exec_queue *q,
u64 value, bool create)
{
u32 min = 0, max = 0;
if (XE_IOCTL_DBG(xe, !create))
return -EINVAL;
xe_exec_queue_get_prop_minmax(q->hwe->eclass,
XE_EXEC_QUEUE_JOB_TIMEOUT, &min, &max);
if (xe_exec_queue_enforce_schedule_limit() &&
!xe_hw_engine_timeout_in_range(value, min, max))
return -EINVAL;
return q->ops->set_job_timeout(q, value);
}
static int exec_queue_set_acc_trigger(struct xe_device *xe, struct xe_exec_queue *q,
u64 value, bool create)
{
if (XE_IOCTL_DBG(xe, !create))
return -EINVAL;
if (XE_IOCTL_DBG(xe, !xe->info.has_usm))
return -EINVAL;
q->usm.acc_trigger = value;
return 0;
}
static int exec_queue_set_acc_notify(struct xe_device *xe, struct xe_exec_queue *q,
u64 value, bool create)
{
if (XE_IOCTL_DBG(xe, !create))
return -EINVAL;
if (XE_IOCTL_DBG(xe, !xe->info.has_usm))
return -EINVAL;
q->usm.acc_notify = value;
return 0;
}
static int exec_queue_set_acc_granularity(struct xe_device *xe, struct xe_exec_queue *q,
u64 value, bool create)
{
if (XE_IOCTL_DBG(xe, !create))
return -EINVAL;
if (XE_IOCTL_DBG(xe, !xe->info.has_usm))
return -EINVAL;
if (value > DRM_XE_ACC_GRANULARITY_64M)
return -EINVAL;
q->usm.acc_granularity = value;
return 0;
}
typedef int (*xe_exec_queue_set_property_fn)(struct xe_device *xe,
struct xe_exec_queue *q,
u64 value, bool create);
@ -395,11 +316,6 @@ typedef int (*xe_exec_queue_set_property_fn)(struct xe_device *xe,
static const xe_exec_queue_set_property_fn exec_queue_set_property_funcs[] = {
[DRM_XE_EXEC_QUEUE_SET_PROPERTY_PRIORITY] = exec_queue_set_priority,
[DRM_XE_EXEC_QUEUE_SET_PROPERTY_TIMESLICE] = exec_queue_set_timeslice,
[DRM_XE_EXEC_QUEUE_SET_PROPERTY_PREEMPTION_TIMEOUT] = exec_queue_set_preemption_timeout,
[DRM_XE_EXEC_QUEUE_SET_PROPERTY_JOB_TIMEOUT] = exec_queue_set_job_timeout,
[DRM_XE_EXEC_QUEUE_SET_PROPERTY_ACC_TRIGGER] = exec_queue_set_acc_trigger,
[DRM_XE_EXEC_QUEUE_SET_PROPERTY_ACC_NOTIFY] = exec_queue_set_acc_notify,
[DRM_XE_EXEC_QUEUE_SET_PROPERTY_ACC_GRANULARITY] = exec_queue_set_acc_granularity,
};
static int exec_queue_user_ext_set_property(struct xe_device *xe,
@ -418,7 +334,9 @@ static int exec_queue_user_ext_set_property(struct xe_device *xe,
if (XE_IOCTL_DBG(xe, ext.property >=
ARRAY_SIZE(exec_queue_set_property_funcs)) ||
XE_IOCTL_DBG(xe, ext.pad))
XE_IOCTL_DBG(xe, ext.pad) ||
XE_IOCTL_DBG(xe, ext.property != DRM_XE_EXEC_QUEUE_SET_PROPERTY_PRIORITY &&
ext.property != DRM_XE_EXEC_QUEUE_SET_PROPERTY_TIMESLICE))
return -EINVAL;
idx = array_index_nospec(ext.property, ARRAY_SIZE(exec_queue_set_property_funcs));

10
drivers/gpu/drm/xe/xe_exec_queue_types.h
View File

@ -150,16 +150,6 @@ struct xe_exec_queue {
spinlock_t lock;
} compute;
/** @usm: unified shared memory state */
struct {
/** @acc_trigger: access counter trigger */
u32 acc_trigger;
/** @acc_notify: access counter notify */
u32 acc_notify;
/** @acc_granularity: access counter granularity */
u32 acc_granularity;
} usm;
/** @ops: submission backend exec queue operations */
const struct xe_exec_queue_ops *ops;

2
drivers/gpu/drm/xe/xe_execlist.c
View File

@ -212,7 +212,7 @@ static void xe_execlist_port_wake_locked(struct xe_execlist_port *port,
static void xe_execlist_make_active(struct xe_execlist_exec_queue *exl)
{
struct xe_execlist_port *port = exl->port;
enum xe_exec_queue_priority priority = exl->active_priority;
enum xe_exec_queue_priority priority = exl->q->sched_props.priority;
XE_WARN_ON(priority == XE_EXEC_QUEUE_PRIORITY_UNSET);
XE_WARN_ON(priority < 0);

12
drivers/gpu/drm/xe/xe_gt_tlb_invalidation.c
View File

@ -247,6 +247,14 @@ int xe_gt_tlb_invalidation_vma(struct xe_gt *gt,
xe_gt_assert(gt, vma);
/* Execlists not supported */
if (gt_to_xe(gt)->info.force_execlist) {
if (fence)
__invalidation_fence_signal(fence);
return 0;
}
action[len++] = XE_GUC_ACTION_TLB_INVALIDATION;
action[len++] = 0; /* seqno, replaced in send_tlb_invalidation */
if (!xe->info.has_range_tlb_invalidation) {
@ -317,6 +325,10 @@ int xe_gt_tlb_invalidation_wait(struct xe_gt *gt, int seqno)
struct drm_printer p = drm_err_printer(__func__);
int ret;
/* Execlists not supported */
if (gt_to_xe(gt)->info.force_execlist)
return 0;
/*
* XXX: See above, this algorithm only works if seqno are always in
* order

10
drivers/gpu/drm/xe/xe_lrc.c
View File

@ -682,8 +682,6 @@ static void xe_lrc_set_ppgtt(struct xe_lrc *lrc, struct xe_vm *vm)
#define PVC_CTX_ASID (0x2e + 1)
#define PVC_CTX_ACC_CTR_THOLD (0x2a + 1)
#define ACC_GRANULARITY_S 20
#define ACC_NOTIFY_S 16
int xe_lrc_init(struct xe_lrc *lrc, struct xe_hw_engine *hwe,
struct xe_exec_queue *q, struct xe_vm *vm, u32 ring_size)
@ -754,13 +752,7 @@ int xe_lrc_init(struct xe_lrc *lrc, struct xe_hw_engine *hwe,
xe_lrc_write_ctx_reg(lrc, CTX_RING_CTL,
RING_CTL_SIZE(lrc->ring.size) | RING_VALID);
if (xe->info.has_asid && vm)
xe_lrc_write_ctx_reg(lrc, PVC_CTX_ASID,
(q->usm.acc_granularity <<
ACC_GRANULARITY_S) | vm->usm.asid);
if (xe->info.has_usm && vm)
xe_lrc_write_ctx_reg(lrc, PVC_CTX_ACC_CTR_THOLD,
(q->usm.acc_notify << ACC_NOTIFY_S) |
q->usm.acc_trigger);
xe_lrc_write_ctx_reg(lrc, PVC_CTX_ASID, vm->usm.asid);
lrc->desc = LRC_VALID;
lrc->desc |= LRC_LEGACY_64B_CONTEXT << LRC_ADDRESSING_MODE_SHIFT;

2
drivers/gpu/drm/xe/xe_mmio.c
View File

@ -105,7 +105,7 @@ static void xe_resize_vram_bar(struct xe_device *xe)
pci_bus_for_each_resource(root, root_res, i) {
if (root_res && root_res->flags & (IORESOURCE_MEM | IORESOURCE_MEM_64) &&
root_res->start > 0x100000000ull)
(u64)root_res->start > 0x100000000ul)
break;
}

56
drivers/gpu/drm/xe/xe_sync.c
View File

@ -19,7 +19,7 @@
#include "xe_macros.h"
#include "xe_sched_job_types.h"
struct user_fence {
struct xe_user_fence {
struct xe_device *xe;
struct kref refcount;
struct dma_fence_cb cb;
@ -27,31 +27,32 @@ struct user_fence {
struct mm_struct *mm;
u64 __user *addr;
u64 value;
int signalled;
};
static void user_fence_destroy(struct kref *kref)
{
struct user_fence *ufence = container_of(kref, struct user_fence,
struct xe_user_fence *ufence = container_of(kref, struct xe_user_fence,
refcount);
mmdrop(ufence->mm);
kfree(ufence);
}
static void user_fence_get(struct user_fence *ufence)
static void user_fence_get(struct xe_user_fence *ufence)
{
kref_get(&ufence->refcount);
}
static void user_fence_put(struct user_fence *ufence)
static void user_fence_put(struct xe_user_fence *ufence)
{
kref_put(&ufence->refcount, user_fence_destroy);
}
static struct user_fence *user_fence_create(struct xe_device *xe, u64 addr,
static struct xe_user_fence *user_fence_create(struct xe_device *xe, u64 addr,
u64 value)
{
struct user_fence *ufence;
struct xe_user_fence *ufence;
ufence = kmalloc(sizeof(*ufence), GFP_KERNEL);
if (!ufence)
@ -69,7 +70,7 @@ static struct user_fence *user_fence_create(struct xe_device *xe, u64 addr,
static void user_fence_worker(struct work_struct *w)
{
struct user_fence *ufence = container_of(w, struct user_fence, worker);
struct xe_user_fence *ufence = container_of(w, struct xe_user_fence, worker);
if (mmget_not_zero(ufence->mm)) {
kthread_use_mm(ufence->mm);
@ -80,10 +81,11 @@ static void user_fence_worker(struct work_struct *w)
}
wake_up_all(&ufence->xe->ufence_wq);
WRITE_ONCE(ufence->signalled, 1);
user_fence_put(ufence);
}
static void kick_ufence(struct user_fence *ufence, struct dma_fence *fence)
static void kick_ufence(struct xe_user_fence *ufence, struct dma_fence *fence)
{
INIT_WORK(&ufence->worker, user_fence_worker);
queue_work(ufence->xe->ordered_wq, &ufence->worker);
@ -92,7 +94,7 @@ static void kick_ufence(struct user_fence *ufence, struct dma_fence *fence)
static void user_fence_cb(struct dma_fence *fence, struct dma_fence_cb *cb)
{
struct user_fence *ufence = container_of(cb, struct user_fence, cb);
struct xe_user_fence *ufence = container_of(cb, struct xe_user_fence, cb);
kick_ufence(ufence, fence);
}
@ -340,3 +342,39 @@ err_out:
return ERR_PTR(-ENOMEM);
}
/**
* xe_sync_ufence_get() - Get user fence from sync
* @sync: input sync
*
* Get a user fence reference from sync.
*
* Return: xe_user_fence pointer with reference
*/
struct xe_user_fence *xe_sync_ufence_get(struct xe_sync_entry *sync)
{
user_fence_get(sync->ufence);
return sync->ufence;
}
/**
* xe_sync_ufence_put() - Put user fence reference
* @ufence: user fence reference
*
*/
void xe_sync_ufence_put(struct xe_user_fence *ufence)
{
user_fence_put(ufence);
}
/**
* xe_sync_ufence_get_status() - Get user fence status
* @ufence: user fence
*
* Return: 1 if signalled, 0 not signalled, <0 on error
*/
int xe_sync_ufence_get_status(struct xe_user_fence *ufence)
{
return READ_ONCE(ufence->signalled);
}

4
drivers/gpu/drm/xe/xe_sync.h
View File

@ -38,4 +38,8 @@ static inline bool xe_sync_is_ufence(struct xe_sync_entry *sync)
return !!sync->ufence;
}
struct xe_user_fence *xe_sync_ufence_get(struct xe_sync_entry *sync);
void xe_sync_ufence_put(struct xe_user_fence *ufence);
int xe_sync_ufence_get_status(struct xe_user_fence *ufence);
#endif

2
drivers/gpu/drm/xe/xe_sync_types.h
View File

@ -18,7 +18,7 @@ struct xe_sync_entry {
struct drm_syncobj *syncobj;
struct dma_fence *fence;
struct dma_fence_chain *chain_fence;
struct user_fence *ufence;
struct xe_user_fence *ufence;
u64 addr;
u64 timeline_value;
u32 type;

59
drivers/gpu/drm/xe/xe_trace.h
View File

@ -12,6 +12,7 @@
#include <linux/tracepoint.h>
#include <linux/types.h>
#include "xe_bo.h"
#include "xe_bo_types.h"
#include "xe_exec_queue_types.h"
#include "xe_gpu_scheduler_types.h"
@ -26,16 +27,16 @@ DECLARE_EVENT_CLASS(xe_gt_tlb_invalidation_fence,
TP_ARGS(fence),
TP_STRUCT__entry(
__field(u64, fence)
__field(struct xe_gt_tlb_invalidation_fence *, fence)
__field(int, seqno)
),
TP_fast_assign(
__entry->fence = (u64)fence;
__entry->fence = fence;
__entry->seqno = fence->seqno;
),
TP_printk("fence=0x%016llx, seqno=%d",
TP_printk("fence=%p, seqno=%d",
__entry->fence, __entry->seqno)
);
@ -82,16 +83,16 @@ DECLARE_EVENT_CLASS(xe_bo,
TP_STRUCT__entry(
__field(size_t, size)
__field(u32, flags)
__field(u64, vm)
__field(struct xe_vm *, vm)
),
TP_fast_assign(
__entry->size = bo->size;
__entry->flags = bo->flags;
__entry->vm = (unsigned long)bo->vm;
__entry->vm = bo->vm;
),
TP_printk("size=%zu, flags=0x%02x, vm=0x%016llx",
TP_printk("size=%zu, flags=0x%02x, vm=%p",
__entry->size, __entry->flags, __entry->vm)
);
@ -100,9 +101,31 @@ DEFINE_EVENT(xe_bo, xe_bo_cpu_fault,
TP_ARGS(bo)
);
DEFINE_EVENT(xe_bo, xe_bo_move,
TP_PROTO(struct xe_bo *bo),
TP_ARGS(bo)
TRACE_EVENT(xe_bo_move,
TP_PROTO(struct xe_bo *bo, uint32_t new_placement, uint32_t old_placement,
bool move_lacks_source),
TP_ARGS(bo, new_placement, old_placement, move_lacks_source),
TP_STRUCT__entry(
__field(struct xe_bo *, bo)
__field(size_t, size)
__field(u32, new_placement)
__field(u32, old_placement)
__array(char, device_id, 12)
__field(bool, move_lacks_source)
),
TP_fast_assign(
__entry->bo = bo;
__entry->size = bo->size;
__entry->new_placement = new_placement;
__entry->old_placement = old_placement;
strscpy(__entry->device_id, dev_name(xe_bo_device(__entry->bo)->drm.dev), 12);
__entry->move_lacks_source = move_lacks_source;
),
TP_printk("move_lacks_source:%s, migrate object %p [size %zu] from %s to %s device_id:%s",
__entry->move_lacks_source ? "yes" : "no", __entry->bo, __entry->size,
xe_mem_type_to_name[__entry->old_placement],
xe_mem_type_to_name[__entry->new_placement], __entry->device_id)
);
DECLARE_EVENT_CLASS(xe_exec_queue,
@ -327,16 +350,16 @@ DECLARE_EVENT_CLASS(xe_hw_fence,
TP_STRUCT__entry(
__field(u64, ctx)
__field(u32, seqno)
__field(u64, fence)
__field(struct xe_hw_fence *, fence)
),
TP_fast_assign(
__entry->ctx = fence->dma.context;
__entry->seqno = fence->dma.seqno;
__entry->fence = (unsigned long)fence;
__entry->fence = fence;
),
TP_printk("ctx=0x%016llx, fence=0x%016llx, seqno=%u",
TP_printk("ctx=0x%016llx, fence=%p, seqno=%u",
__entry->ctx, __entry->fence, __entry->seqno)
);
@ -365,7 +388,7 @@ DECLARE_EVENT_CLASS(xe_vma,
TP_ARGS(vma),
TP_STRUCT__entry(
__field(u64, vma)
__field(struct xe_vma *, vma)
__field(u32, asid)
__field(u64, start)
__field(u64, end)
@ -373,14 +396,14 @@ DECLARE_EVENT_CLASS(xe_vma,
),
TP_fast_assign(
__entry->vma = (unsigned long)vma;
__entry->vma = vma;
__entry->asid = xe_vma_vm(vma)->usm.asid;
__entry->start = xe_vma_start(vma);
__entry->end = xe_vma_end(vma) - 1;
__entry->ptr = xe_vma_userptr(vma);
),
TP_printk("vma=0x%016llx, asid=0x%05x, start=0x%012llx, end=0x%012llx, ptr=0x%012llx,",
TP_printk("vma=%p, asid=0x%05x, start=0x%012llx, end=0x%012llx, userptr=0x%012llx,",
__entry->vma, __entry->asid, __entry->start,
__entry->end, __entry->ptr)
)
@ -465,16 +488,16 @@ DECLARE_EVENT_CLASS(xe_vm,
TP_ARGS(vm),
TP_STRUCT__entry(
__field(u64, vm)
__field(struct xe_vm *, vm)
__field(u32, asid)
),
TP_fast_assign(
__entry->vm = (unsigned long)vm;
__entry->vm = vm;
__entry->asid = vm->usm.asid;
),
TP_printk("vm=0x%016llx, asid=0x%05x", __entry->vm,
TP_printk("vm=%p, asid=0x%05x", __entry->vm,
__entry->asid)
);

80
drivers/gpu/drm/xe/xe_vm.c
View File

@ -897,6 +897,11 @@ static void xe_vma_destroy_late(struct xe_vma *vma)
struct xe_device *xe = vm->xe;
bool read_only = xe_vma_read_only(vma);
if (vma->ufence) {
xe_sync_ufence_put(vma->ufence);
vma->ufence = NULL;
}
if (xe_vma_is_userptr(vma)) {
struct xe_userptr *userptr = &to_userptr_vma(vma)->userptr;
@ -1608,6 +1613,16 @@ xe_vm_unbind_vma(struct xe_vma *vma, struct xe_exec_queue *q,
trace_xe_vma_unbind(vma);
if (vma->ufence) {
struct xe_user_fence * const f = vma->ufence;
if (!xe_sync_ufence_get_status(f))
return ERR_PTR(-EBUSY);
vma->ufence = NULL;
xe_sync_ufence_put(f);
}
if (number_tiles > 1) {
fences = kmalloc_array(number_tiles, sizeof(*fences),
GFP_KERNEL);
@ -1741,6 +1756,21 @@ err_fences:
return ERR_PTR(err);
}
static struct xe_user_fence *
find_ufence_get(struct xe_sync_entry *syncs, u32 num_syncs)
{
unsigned int i;
for (i = 0; i < num_syncs; i++) {
struct xe_sync_entry *e = &syncs[i];
if (xe_sync_is_ufence(e))
return xe_sync_ufence_get(e);
}
return NULL;
}
static int __xe_vm_bind(struct xe_vm *vm, struct xe_vma *vma,
struct xe_exec_queue *q, struct xe_sync_entry *syncs,
u32 num_syncs, bool immediate, bool first_op,
@ -1748,9 +1778,16 @@ static int __xe_vm_bind(struct xe_vm *vm, struct xe_vma *vma,
{
struct dma_fence *fence;
struct xe_exec_queue *wait_exec_queue = to_wait_exec_queue(vm, q);
struct xe_user_fence *ufence;
xe_vm_assert_held(vm);
ufence = find_ufence_get(syncs, num_syncs);
if (vma->ufence && ufence)
xe_sync_ufence_put(vma->ufence);
vma->ufence = ufence ?: vma->ufence;
if (immediate) {
fence = xe_vm_bind_vma(vma, q, syncs, num_syncs, first_op,
last_op);
@ -2117,10 +2154,6 @@ vm_bind_ioctl_ops_create(struct xe_vm *vm, struct xe_bo *bo,
struct xe_vma_op *op = gpuva_op_to_vma_op(__op);
if (__op->op == DRM_GPUVA_OP_MAP) {
op->map.immediate =
flags & DRM_XE_VM_BIND_FLAG_IMMEDIATE;
op->map.read_only =
flags & DRM_XE_VM_BIND_FLAG_READONLY;
op->map.is_null = flags & DRM_XE_VM_BIND_FLAG_NULL;
op->map.pat_index = pat_index;
} else if (__op->op == DRM_GPUVA_OP_PREFETCH) {
@ -2313,8 +2346,6 @@ static int vm_bind_ioctl_ops_parse(struct xe_vm *vm, struct xe_exec_queue *q,
switch (op->base.op) {
case DRM_GPUVA_OP_MAP:
{
flags |= op->map.read_only ?
VMA_CREATE_FLAG_READ_ONLY : 0;
flags |= op->map.is_null ?
VMA_CREATE_FLAG_IS_NULL : 0;
@ -2445,7 +2476,7 @@ static int op_execute(struct drm_exec *exec, struct xe_vm *vm,
case DRM_GPUVA_OP_MAP:
err = xe_vm_bind(vm, vma, op->q, xe_vma_bo(vma),
op->syncs, op->num_syncs,
op->map.immediate || !xe_vm_in_fault_mode(vm),
!xe_vm_in_fault_mode(vm),
op->flags & XE_VMA_OP_FIRST,
op->flags & XE_VMA_OP_LAST);
break;
@ -2720,14 +2751,11 @@ static int vm_bind_ioctl_ops_execute(struct xe_vm *vm,
return 0;
}
#define SUPPORTED_FLAGS \
(DRM_XE_VM_BIND_FLAG_READONLY | \
DRM_XE_VM_BIND_FLAG_IMMEDIATE | DRM_XE_VM_BIND_FLAG_NULL)
#define SUPPORTED_FLAGS (DRM_XE_VM_BIND_FLAG_NULL | \
DRM_XE_VM_BIND_FLAG_DUMPABLE)
#define XE_64K_PAGE_MASK 0xffffull
#define ALL_DRM_XE_SYNCS_FLAGS (DRM_XE_SYNCS_FLAG_WAIT_FOR_OP)
#define MAX_BINDS 512 /* FIXME: Picking random upper limit */
static int vm_bind_ioctl_check_args(struct xe_device *xe,
struct drm_xe_vm_bind *args,
struct drm_xe_vm_bind_op **bind_ops)
@ -2739,16 +2767,16 @@ static int vm_bind_ioctl_check_args(struct xe_device *xe,
XE_IOCTL_DBG(xe, args->reserved[0] || args->reserved[1]))
return -EINVAL;
if (XE_IOCTL_DBG(xe, args->extensions) ||
XE_IOCTL_DBG(xe, args->num_binds > MAX_BINDS))
if (XE_IOCTL_DBG(xe, args->extensions))
return -EINVAL;
if (args->num_binds > 1) {
u64 __user *bind_user =
u64_to_user_ptr(args->vector_of_binds);
*bind_ops = kmalloc(sizeof(struct drm_xe_vm_bind_op) *
args->num_binds, GFP_KERNEL);
*bind_ops = kvmalloc_array(args->num_binds,
sizeof(struct drm_xe_vm_bind_op),
GFP_KERNEL | __GFP_ACCOUNT);
if (!*bind_ops)
return -ENOMEM;
@ -2838,7 +2866,7 @@ static int vm_bind_ioctl_check_args(struct xe_device *xe,
free_bind_ops:
if (args->num_binds > 1)
kfree(*bind_ops);
kvfree(*bind_ops);
return err;
}
@ -2926,13 +2954,15 @@ int xe_vm_bind_ioctl(struct drm_device *dev, void *data, struct drm_file *file)
}
if (args->num_binds) {
bos = kcalloc(args->num_binds, sizeof(*bos), GFP_KERNEL);
bos = kvcalloc(args->num_binds, sizeof(*bos),
GFP_KERNEL | __GFP_ACCOUNT);
if (!bos) {
err = -ENOMEM;
goto release_vm_lock;
}
ops = kcalloc(args->num_binds, sizeof(*ops), GFP_KERNEL);
ops = kvcalloc(args->num_binds, sizeof(*ops),
GFP_KERNEL | __GFP_ACCOUNT);
if (!ops) {
err = -ENOMEM;
goto release_vm_lock;
@ -3073,10 +3103,10 @@ int xe_vm_bind_ioctl(struct drm_device *dev, void *data, struct drm_file *file)
for (i = 0; bos && i < args->num_binds; ++i)
xe_bo_put(bos[i]);
kfree(bos);
kfree(ops);
kvfree(bos);
kvfree(ops);
if (args->num_binds > 1)
kfree(bind_ops);
kvfree(bind_ops);
return err;
@ -3100,10 +3130,10 @@ put_exec_queue:
if (q)
xe_exec_queue_put(q);
free_objs:
kfree(bos);
kfree(ops);
kvfree(bos);
kvfree(ops);
if (args->num_binds > 1)
kfree(bind_ops);
kvfree(bind_ops);
return err;
}

11
drivers/gpu/drm/xe/xe_vm_types.h
View File

@ -19,6 +19,7 @@
struct xe_bo;
struct xe_sync_entry;
struct xe_user_fence;
struct xe_vm;
#define XE_VMA_READ_ONLY DRM_GPUVA_USERBITS
@ -104,6 +105,12 @@ struct xe_vma {
* @pat_index: The pat index to use when encoding the PTEs for this vma.
*/
u16 pat_index;
/**
* @ufence: The user fence that was provided with MAP.
* Needs to be signalled before UNMAP can be processed.
*/
struct xe_user_fence *ufence;
};
/**
@ -288,10 +295,6 @@ struct xe_vm {
struct xe_vma_op_map {
/** @vma: VMA to map */
struct xe_vma *vma;
/** @immediate: Immediate bind */
bool immediate;
/** @read_only: Read only */
bool read_only;
/** @is_null: is NULL binding */
bool is_null;
/** @pat_index: The pat index to use for this operation. */

3
drivers/gpu/host1x/dev.c
View File

@ -169,6 +169,7 @@ static const struct host1x_info host1x06_info = {
.num_sid_entries = ARRAY_SIZE(tegra186_sid_table),
.sid_table = tegra186_sid_table,
.reserve_vblank_syncpts = false,
.skip_reset_assert = true,
};
static const struct host1x_sid_entry tegra194_sid_table[] = {
@ -680,6 +681,7 @@ static int __maybe_unused host1x_runtime_suspend(struct device *dev)
host1x_intr_stop(host);
host1x_syncpt_save(host);
if (!host->info->skip_reset_assert) {
err = reset_control_bulk_assert(host->nresets, host->resets);
if (err) {
dev_err(dev, "failed to assert reset: %d\n", err);
@ -687,6 +689,7 @@ static int __maybe_unused host1x_runtime_suspend(struct device *dev)
}
usleep_range(1000, 2000);
}
clk_disable_unprepare(host->clk);
reset_control_bulk_release(host->nresets, host->resets);

6
drivers/gpu/host1x/dev.h
View File

@ -116,6 +116,12 @@ struct host1x_info {
* the display driver disables VBLANK increments.
*/
bool reserve_vblank_syncpts;
/*
* On Tegra186, secure world applications may require access to
* host1x during suspend/resume. To allow this, we need to leave
* host1x not in reset.
*/
bool skip_reset_assert;
};
struct host1x {

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