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Merge branch 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linus

Browse Source 
Pull MIPS updates from Ralf Baechle:
 "These are the highlists of the main MIPS pull request for 4.4:

   - Add latencytop support
   - Support appended DTBs
   - VDSO support and initially use it for gettimeofday.
   - Drop the .MIPS.abiflags and ELF NOTE sections from vmlinux
   - Support for the 5KE, an internal test core.
   - Switch all MIPS platfroms to libata drivers.
   - Improved support, cleanups for ralink and Lantiq platforms.
   - Support for the new xilfpga platform.
   - A number of DTB improvments for BMIPS.
   - Improved support for CM and CPS.
   - Minor JZ4740 and BCM47xx enhancements"

* 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linus: (120 commits)
  MIPS: idle: add case for CPU_5KE
  MIPS: Octeon: Support APPENDED_DTB
  MIPS: vmlinux: create a section for appended DTB
  MIPS: Clean up compat_siginfo_t
  MIPS: Fix PAGE_MASK definition
  MIPS: BMIPS: Enable GZIP ramdisk and timed printks
  MIPS: Add xilfpga defconfig
  MIPS: xilfpga: Add mipsfpga platform code
  MIPS: xilfpga: Add xilfpga device tree files.
  dt-bindings: MIPS: Document xilfpga bindings and boot style
  MIPS: Make MIPS_CMDLINE_DTB default
  MIPS: Make the kernel arguments from dtb available
  MIPS: Use USE_OF as the guard for appended dtb
  MIPS: BCM63XX: Use pr_* instead of printk
  MIPS: Loongson: Cleanup CONFIG_LOONGSON_SUSPEND.
  MIPS: lantiq: Disable xbar fpi burst mode
  MIPS: lantiq: Force the crossbar to big endian
  MIPS: lantiq: Initialize the USB core on boot
  MIPS: lantiq: Return correct value for fpi clock on ar9
  MIPS: ralink: Add missing clock on rt305x
  ...
This commit is contained in:
Linus Torvalds 2015-11-15 09:10:53 -08:00
commit b84da9fa47
151 changed files with 4596 additions and 755 deletions
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83
Documentation/devicetree/bindings/mips/img/xilfpga.txt Normal file
View File

@ -0,0 +1,83 @@
Imagination University Program MIPSfpga
=======================================
Under the Imagination University Program, a microAptiv UP core has been
released for academic usage.
As we are dealing with a MIPS core instantiated on an FPGA, specifications
are fluid and can be varied in RTL.
This binding document is provided as baseline guidance for the example
project provided by IMG.
The example project runs on the Nexys4DDR board by Digilent powered by
the ARTIX-7 FPGA by Xilinx.
Relevant details about the example project and the Nexys4DDR board:
- microAptiv UP core m14Kc
- 50MHz clock speed
- 128Mbyte DDR RAM at 0x0000_0000
- 8Kbyte RAM at 0x1000_0000
- axi_intc at 0x1020_0000
- axi_uart16550 at 0x1040_0000
- axi_gpio at 0x1060_0000
- axi_i2c at 0x10A0_0000
- custom_gpio at 0x10C0_0000
- axi_ethernetlite at 0x10E0_0000
- 8Kbyte BootRAM at 0x1FC0_0000
Required properties:
--------------------
- compatible: Must include "digilent,nexys4ddr","img,xilfpga".
CPU nodes:
----------
A "cpus" node is required. Required properties:
- #address-cells: Must be 1.
- #size-cells: Must be 0.
A CPU sub-node is also required for at least CPU 0. Required properties:
- device_type: Must be "cpu".
- compatible: Must be "mips,m14Kc".
- reg: Must be <0>.
- clocks: phandle to ext clock for fixed-clock received by MIPS core.
Example:
compatible = "img,xilfpga","digilent,nexys4ddr";
cpus {
#address-cells = <1>;
#size-cells = <0>;
cpu0: cpu@0 {
device_type = "cpu";
compatible = "mips,m14Kc";
reg = <0>;
clocks = <&ext>;
};
};
ext: ext {
compatible = "fixed-clock";
#clock-cells = <0>;
clock-frequency = <50000000>;
};
Boot protocol:
--------------
The BootRAM is a writeable "RAM" in FPGA at 0x1FC0_0000.
This is for easy reprogrammibility via JTAG.
The BootRAM initializes the cache and the axi_uart peripheral.
DDR initialization is already handled by a HW IP block.
When the example project bitstream is loaded, the cpu_reset button
needs to be pressed.
The bootram initializes the cache and axi_uart.
Then outputs MIPSFPGA\n\r on the serial port on the Nexys4DDR board.
At this point, the board is ready to load the Linux kernel
vmlinux file via JTAG.

1
arch/mips/Kbuild
View File

@ -17,6 +17,7 @@ obj- := $(platform-)
obj-y += kernel/
obj-y += mm/
obj-y += net/
obj-y += vdso/
ifdef CONFIG_KVM
obj-y += kvm/

1
arch/mips/Kbuild.platforms
View File

@ -33,6 +33,7 @@ platforms += sibyte
platforms += sni
platforms += txx9
platforms += vr41xx
platforms += xilfpga
# include the platform specific files
include $(patsubst %, $(srctree)/arch/mips/%/Platform, $(platforms))

88
arch/mips/Kconfig
View File

@ -5,6 +5,7 @@ config MIPS
select ARCH_MIGHT_HAVE_PC_PARPORT
select ARCH_MIGHT_HAVE_PC_SERIO
select ARCH_USE_CMPXCHG_LOCKREF if 64BIT
select ARCH_USE_BUILTIN_BSWAP
select HAVE_CONTEXT_TRACKING
select HAVE_GENERIC_DMA_COHERENT
select HAVE_IDE
@ -60,6 +61,8 @@ config MIPS
select SYSCTL_EXCEPTION_TRACE
select HAVE_VIRT_CPU_ACCOUNTING_GEN
select HAVE_IRQ_TIME_ACCOUNTING
select GENERIC_TIME_VSYSCALL
select ARCH_CLOCKSOURCE_DATA
menu "Machine selection"
@ -401,6 +404,28 @@ config MACH_PISTACHIO
help
This enables support for the IMG Pistachio SoC platform.
config MACH_XILFPGA
bool "MIPSfpga Xilinx based boards"
select ARCH_REQUIRE_GPIOLIB
select BOOT_ELF32
select BOOT_RAW
select BUILTIN_DTB
select CEVT_R4K
select COMMON_CLK
select CSRC_R4K
select IRQ_MIPS_CPU
select LIBFDT
select MIPS_CPU_SCACHE
select SYS_HAS_EARLY_PRINTK
select SYS_HAS_CPU_MIPS32_R2
select SYS_SUPPORTS_32BIT_KERNEL
select SYS_SUPPORTS_LITTLE_ENDIAN
select SYS_SUPPORTS_ZBOOT_UART16550
select USE_OF
select USE_GENERIC_EARLY_PRINTK_8250
help
This enables support for the IMG University Program MIPSfpga platform.
config MIPS_MALTA
bool "MIPS Malta board"
select ARCH_MAY_HAVE_PC_FDC
@ -424,6 +449,7 @@ config MIPS_MALTA
select MIPS_L1_CACHE_SHIFT_6
select PCI_GT64XXX_PCI0
select MIPS_MSC
select SMP_UP if SMP
select SWAP_IO_SPACE
select SYS_HAS_CPU_MIPS32_R1
select SYS_HAS_CPU_MIPS32_R2
@ -449,6 +475,8 @@ config MIPS_MALTA
select SYS_SUPPORTS_ZBOOT
select USE_OF
select ZONE_DMA32 if 64BIT
select BUILTIN_DTB
select LIBFDT
help
This enables support for the MIPS Technologies Malta evaluation
board.
@ -964,6 +992,7 @@ source "arch/mips/loongson32/Kconfig"
source "arch/mips/loongson64/Kconfig"
source "arch/mips/netlogic/Kconfig"
source "arch/mips/paravirt/Kconfig"
source "arch/mips/xilfpga/Kconfig"
endmenu
@ -1036,6 +1065,9 @@ config CSRC_R4K
config CSRC_SB1250
bool
config MIPS_CLOCK_VSYSCALL
def_bool CSRC_R4K || CLKSRC_MIPS_GIC
config GPIO_TXX9
select ARCH_REQUIRE_GPIOLIB
bool
@ -2529,6 +2561,9 @@ choice
help
Allows the configuration of the timer frequency.
config HZ_24
bool "24 HZ" if SYS_SUPPORTS_24HZ || SYS_SUPPORTS_ARBIT_HZ
config HZ_48
bool "48 HZ" if SYS_SUPPORTS_48HZ || SYS_SUPPORTS_ARBIT_HZ
@ -2552,6 +2587,9 @@ choice
endchoice
config SYS_SUPPORTS_24HZ
bool
config SYS_SUPPORTS_48HZ
bool
@ -2575,13 +2613,18 @@ config SYS_SUPPORTS_1024HZ
config SYS_SUPPORTS_ARBIT_HZ
bool
default y if !SYS_SUPPORTS_48HZ && !SYS_SUPPORTS_100HZ && \
!SYS_SUPPORTS_128HZ && !SYS_SUPPORTS_250HZ && \
!SYS_SUPPORTS_256HZ && !SYS_SUPPORTS_1000HZ && \
default y if !SYS_SUPPORTS_24HZ && \
!SYS_SUPPORTS_48HZ && \
!SYS_SUPPORTS_100HZ && \
!SYS_SUPPORTS_128HZ && \
!SYS_SUPPORTS_250HZ && \
!SYS_SUPPORTS_256HZ && \
!SYS_SUPPORTS_1000HZ && \
!SYS_SUPPORTS_1024HZ
config HZ
int
default 24 if HZ_24
default 48 if HZ_48
default 100 if HZ_100
default 128 if HZ_128
@ -2685,7 +2728,7 @@ config BUILTIN_DTB
bool
choice
prompt "Kernel appended dtb support" if OF
prompt "Kernel appended dtb support" if USE_OF
default MIPS_NO_APPENDED_DTB
config MIPS_NO_APPENDED_DTB
@ -2693,6 +2736,20 @@ choice
help
Do not enable appended dtb support.
config MIPS_ELF_APPENDED_DTB
bool "vmlinux"
help
With this option, the boot code will look for a device tree binary
DTB) included in the vmlinux ELF section .appended_dtb. By default
it is empty and the DTB can be appended using binutils command
objcopy:
objcopy --update-section .appended_dtb=<filename>.dtb vmlinux
This is meant as a backward compatiblity convenience for those
systems with a bootloader that can't be upgraded to accommodate
the documented boot protocol using a device tree.
config MIPS_RAW_APPENDED_DTB
bool "vmlinux.bin"
help
@ -2729,6 +2786,25 @@ choice
if you don't intend to always append a DTB.
endchoice
choice
prompt "Kernel command line type" if !CMDLINE_OVERRIDE
default MIPS_CMDLINE_FROM_DTB if USE_OF && !ATH79 && !MACH_INGENIC && \
!MIPS_MALTA && !MIPS_SEAD3 && \
!CAVIUM_OCTEON_SOC
default MIPS_CMDLINE_FROM_BOOTLOADER
config MIPS_CMDLINE_FROM_DTB
depends on USE_OF
bool "Dtb kernel arguments if available"
config MIPS_CMDLINE_DTB_EXTEND
depends on USE_OF
bool "Extend dtb kernel arguments with bootloader arguments"
config MIPS_CMDLINE_FROM_BOOTLOADER
bool "Bootloader kernel arguments if available"
endchoice
endmenu
config LOCKDEP_SUPPORT
@ -2739,6 +2815,10 @@ config STACKTRACE_SUPPORT
bool
default y
config HAVE_LATENCYTOP_SUPPORT
bool
default y
config PGTABLE_LEVELS
int
default 3 if 64BIT && !PAGE_SIZE_64KB

72
arch/mips/Kconfig.debug
View File

@ -113,4 +113,76 @@ config SPINLOCK_TEST
help
Add several files to the debugfs to test spinlock speed.
if CPU_MIPSR6
choice
prompt "Compact branch policy"
default MIPS_COMPACT_BRANCHES_OPTIMAL
config MIPS_COMPACT_BRANCHES_NEVER
bool "Never (force delay slot branches)"
help
Pass the -mcompact-branches=never flag to the compiler in order to
force it to always emit branches with delay slots, and make no use
of the compact branch instructions introduced by MIPSr6. This is
useful if you suspect there may be an issue with compact branches in
either the compiler or the CPU.
config MIPS_COMPACT_BRANCHES_OPTIMAL
bool "Optimal (use where beneficial)"
help
Pass the -mcompact-branches=optimal flag to the compiler in order for
it to make use of compact branch instructions where it deems them
beneficial, and use branches with delay slots elsewhere. This is the
default compiler behaviour, and should be used unless you have a
reason to choose otherwise.
config MIPS_COMPACT_BRANCHES_ALWAYS
bool "Always (force compact branches)"
help
Pass the -mcompact-branches=always flag to the compiler in order to
force it to always emit compact branches, making no use of branch
instructions with delay slots. This can result in more compact code
which may be beneficial in some scenarios.
endchoice
endif # CPU_MIPSR6
config SCACHE_DEBUGFS
bool "L2 cache debugfs entries"
depends on DEBUG_FS
help
Enable this to allow parts of the L2 cache configuration, such as
whether or not prefetching is enabled, to be exposed to userland
via debugfs.
If unsure, say N.
menuconfig MIPS_CPS_NS16550
bool "CPS SMP NS16550 UART output"
depends on MIPS_CPS
help
Output debug information via an ns16550 compatible UART if exceptions
occur early in the boot process of a secondary core.
if MIPS_CPS_NS16550
config MIPS_CPS_NS16550_BASE
hex "UART Base Address"
default 0x1b0003f8 if MIPS_MALTA
help
The base address of the ns16550 compatible UART on which to output
debug information from the early stages of core startup.
config MIPS_CPS_NS16550_SHIFT
int "UART Register Shift"
default 0 if MIPS_MALTA
help
The number of bits to shift ns16550 register indices by in order to
form their addresses. That is, log base 2 of the span between
adjacent ns16550 registers in the system.
endif # MIPS_CPS_NS16550
endmenu

4
arch/mips/Makefile
View File

@ -204,6 +204,10 @@ toolchain-msa := $(call cc-option-yn,$(mips-cflags) -mhard-float -mfp64 -Wa$(
cflags-$(toolchain-msa) += -DTOOLCHAIN_SUPPORTS_MSA
endif
cflags-$(CONFIG_MIPS_COMPACT_BRANCHES_NEVER) += -mcompact-branches=never
cflags-$(CONFIG_MIPS_COMPACT_BRANCHES_OPTIMAL) += -mcompact-branches=optimal
cflags-$(CONFIG_MIPS_COMPACT_BRANCHES_ALWAYS) += -mcompact-branches=always
#
# Firmware support
#

19
arch/mips/bcm47xx/setup.c
View File

@ -105,11 +105,28 @@ static int bcm47xx_get_invariants(struct ssb_bus *bus,
struct ssb_init_invariants *iv)
{
char buf[20];
int len, err;
/* Fill boardinfo structure */
memset(&iv->boardinfo, 0 , sizeof(struct ssb_boardinfo));
bcm47xx_fill_ssb_boardinfo(&iv->boardinfo, NULL);
len = bcm47xx_nvram_getenv("boardvendor", buf, sizeof(buf));
if (len > 0) {
err = kstrtou16(strim(buf), 0, &iv->boardinfo.vendor);
if (err)
pr_warn("Couldn't parse nvram board vendor entry with value \"%s\"\n",
buf);
}
if (!iv->boardinfo.vendor)
iv->boardinfo.vendor = SSB_BOARDVENDOR_BCM;
len = bcm47xx_nvram_getenv("boardtype", buf, sizeof(buf));
if (len > 0) {
err = kstrtou16(strim(buf), 0, &iv->boardinfo.type);
if (err)
pr_warn("Couldn't parse nvram board type entry with value \"%s\"\n",
buf);
}
memset(&iv->sprom, 0, sizeof(struct ssb_sprom));
bcm47xx_fill_sprom(&iv->sprom, NULL, false);

46
arch/mips/bcm47xx/sprom.c
View File

@ -60,9 +60,9 @@ static int get_nvram_var(const char *prefix, const char *postfix,
}
#define NVRAM_READ_VAL(type) \
static void nvram_read_ ## type (const char *prefix, \
const char *postfix, const char *name, \
type *val, type allset, bool fallback) \
static void nvram_read_ ## type(const char *prefix, \
const char *postfix, const char *name, \
type *val, type allset, bool fallback) \
{ \
char buf[100]; \
int err; \
@ -422,7 +422,10 @@ static void bcm47xx_fill_sprom_path_r4589(struct ssb_sprom *sprom,
int i;
for (i = 0; i < ARRAY_SIZE(sprom->core_pwr_info); i++) {
struct ssb_sprom_core_pwr_info *pwr_info = &sprom->core_pwr_info[i];
struct ssb_sprom_core_pwr_info *pwr_info;
pwr_info = &sprom->core_pwr_info[i];
snprintf(postfix, sizeof(postfix), "%i", i);
nvram_read_u8(prefix, postfix, "maxp2ga",
&pwr_info->maxpwr_2g, 0, fallback);
@ -470,7 +473,10 @@ static void bcm47xx_fill_sprom_path_r45(struct ssb_sprom *sprom,
int i;
for (i = 0; i < ARRAY_SIZE(sprom->core_pwr_info); i++) {
struct ssb_sprom_core_pwr_info *pwr_info = &sprom->core_pwr_info[i];
struct ssb_sprom_core_pwr_info *pwr_info;
pwr_info = &sprom->core_pwr_info[i];
snprintf(postfix, sizeof(postfix), "%i", i);
nvram_read_u16(prefix, postfix, "pa2gw3a",
&pwr_info->pa_2g[3], 0, fallback);
@ -535,10 +541,11 @@ static void bcm47xx_fill_sprom_ethernet(struct ssb_sprom *sprom,
nvram_read_macaddr(prefix, "il0macaddr", sprom->il0mac, fallback);
/* The address prefix 00:90:4C is used by Broadcom in their initial
configuration. When a mac address with the prefix 00:90:4C is used
all devices from the same series are sharing the same mac address.
To prevent mac address collisions we replace them with a mac address
based on the base address. */
* configuration. When a mac address with the prefix 00:90:4C is used
* all devices from the same series are sharing the same mac address.
* To prevent mac address collisions we replace them with a mac address
* based on the base address.
*/
if (!bcm47xx_is_valid_mac(sprom->il0mac)) {
u8 mac[6];
@ -592,32 +599,23 @@ void bcm47xx_fill_sprom(struct ssb_sprom *sprom, const char *prefix,
bcm47xx_sprom_fill_auto(sprom, prefix, fallback);
}
#ifdef CONFIG_BCM47XX_SSB
void bcm47xx_fill_ssb_boardinfo(struct ssb_boardinfo *boardinfo,
const char *prefix)
{
nvram_read_u16(prefix, NULL, "boardvendor", &boardinfo->vendor, 0,
true);
if (!boardinfo->vendor)
boardinfo->vendor = SSB_BOARDVENDOR_BCM;
nvram_read_u16(prefix, NULL, "boardtype", &boardinfo->type, 0, true);
}
#endif
#if defined(CONFIG_BCM47XX_SSB)
static int bcm47xx_get_sprom_ssb(struct ssb_bus *bus, struct ssb_sprom *out)
{
char prefix[10];
if (bus->bustype == SSB_BUSTYPE_PCI) {
switch (bus->bustype) {
case SSB_BUSTYPE_SSB:
bcm47xx_fill_sprom(out, NULL, false);
return 0;
case SSB_BUSTYPE_PCI:
memset(out, 0, sizeof(struct ssb_sprom));
snprintf(prefix, sizeof(prefix), "pci/%u/%u/",
bus->host_pci->bus->number + 1,
PCI_SLOT(bus->host_pci->devfn));
bcm47xx_fill_sprom(out, prefix, false);
return 0;
} else {
default:
pr_warn("Unable to fill SPROM for given bustype.\n");
return -EINVAL;
}

14
arch/mips/bcm63xx/boards/board_bcm963xx.c
View File

@ -7,6 +7,8 @@
* Copyright (C) 2008 Florian Fainelli <florian@openwrt.org>
*/
#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
#include <linux/init.h>
#include <linux/kernel.h>
#include <linux/string.h>
@ -31,7 +33,6 @@
#include <uapi/linux/bcm933xx_hcs.h>
#define PFX "board_bcm963xx: "
#define HCS_OFFSET_128K 0x20000
@ -740,7 +741,7 @@ int bcm63xx_get_fallback_sprom(struct ssb_bus *bus, struct ssb_sprom *out)
memcpy(out, &bcm63xx_sprom, sizeof(struct ssb_sprom));
return 0;
} else {
printk(KERN_ERR PFX "unable to fill SPROM for given bustype.\n");
pr_err("unable to fill SPROM for given bustype\n");
return -EINVAL;
}
}
@ -784,7 +785,7 @@ void __init board_prom_init(void)
cfe[5], cfe[6], cfe[7], cfe[8], cfe[9]);
else
strcpy(cfe_version, "unknown");
printk(KERN_INFO PFX "CFE version: %s\n", cfe_version);
pr_info("CFE version: %s\n", cfe_version);
bcm63xx_nvram_init(boot_addr + BCM963XX_NVRAM_OFFSET);
@ -808,8 +809,7 @@ void __init board_prom_init(void)
char name[17];
memcpy(name, board_name, 16);
name[16] = 0;
printk(KERN_ERR PFX "unknown bcm963xx board: %s\n",
name);
pr_err("unknown bcm963xx board: %s\n", name);
return;
}
@ -854,7 +854,7 @@ void __init board_setup(void)
{
if (!board.name[0])
panic("unable to detect bcm963xx board");
printk(KERN_INFO PFX "board name: %s\n", board.name);
pr_info("board name: %s\n", board.name);
/* make sure we're running on expected cpu */
if (bcm63xx_get_cpu_id() != board.expected_cpu_id)
@ -910,7 +910,7 @@ int __init board_register_devices(void)
memcpy(bcm63xx_sprom.et1mac, bcm63xx_sprom.il0mac, ETH_ALEN);
if (ssb_arch_register_fallback_sprom(
&bcm63xx_get_fallback_sprom) < 0)
pr_err(PFX "failed to register fallback SPROM\n");
pr_err("failed to register fallback SPROM\n");
}
#endif

12
arch/mips/bcm63xx/cpu.c
View File

@ -376,10 +376,10 @@ void __init bcm63xx_cpu_init(void)
bcm63xx_cpu_freq = detect_cpu_clock();
bcm63xx_memory_size = detect_memory_size();
printk(KERN_INFO "Detected Broadcom 0x%04x CPU revision %02x\n",
bcm63xx_cpu_id, bcm63xx_cpu_rev);
printk(KERN_INFO "CPU frequency is %u MHz\n",
bcm63xx_cpu_freq / 1000000);
printk(KERN_INFO "%uMB of RAM installed\n",
bcm63xx_memory_size >> 20);
pr_info("Detected Broadcom 0x%04x CPU revision %02x\n",
bcm63xx_cpu_id, bcm63xx_cpu_rev);
pr_info("CPU frequency is %u MHz\n",
bcm63xx_cpu_freq / 1000000);
pr_info("%uMB of RAM installed\n",
bcm63xx_memory_size >> 20);
}

2
arch/mips/bcm63xx/dev-pcmcia.c
View File

@ -139,6 +139,6 @@ int __init bcm63xx_pcmcia_register(void)
return platform_device_register(&bcm63xx_pcmcia_device);
out_err:
printk(KERN_ERR "unable to set pcmcia chip select\n");
pr_err("unable to set pcmcia chip select\n");
return ret;
}

2
arch/mips/bcm63xx/irq.c
View File

@ -311,7 +311,7 @@ static int bcm63xx_external_irq_set_type(struct irq_data *d,
break;
default:
printk(KERN_ERR "bogus flow type combination given !\n");
pr_err("bogus flow type combination given !\n");
return -EINVAL;
}

8
arch/mips/bcm63xx/setup.c
View File

@ -24,7 +24,7 @@
void bcm63xx_machine_halt(void)
{
printk(KERN_INFO "System halted\n");
pr_info("System halted\n");
while (1)
;
}
@ -34,7 +34,7 @@ static void bcm6348_a1_reboot(void)
u32 reg;
/* soft reset all blocks */
printk(KERN_INFO "soft-resetting all blocks ...\n");
pr_info("soft-resetting all blocks ...\n");
reg = bcm_perf_readl(PERF_SOFTRESET_REG);
reg &= ~SOFTRESET_6348_ALL;
bcm_perf_writel(reg, PERF_SOFTRESET_REG);
@ -46,7 +46,7 @@ static void bcm6348_a1_reboot(void)
mdelay(10);
/* Jump to the power on address. */
printk(KERN_INFO "jumping to reset vector.\n");
pr_info("jumping to reset vector.\n");
/* set high vectors (base at 0xbfc00000 */
set_c0_status(ST0_BEV | ST0_ERL);
/* run uncached in kseg0 */
@ -110,7 +110,7 @@ void bcm63xx_machine_reboot(void)
if (BCMCPU_IS_6348() && (bcm63xx_get_cpu_rev() == 0xa1))
bcm6348_a1_reboot();
printk(KERN_INFO "triggering watchdog soft-reset...\n");
pr_info("triggering watchdog soft-reset...\n");
if (BCMCPU_IS_6328()) {
bcm_wdt_writel(1, WDT_SOFTRESET_REG);
} else {

2
arch/mips/bcm63xx/timer.c
View File

@ -195,7 +195,7 @@ int bcm63xx_timer_init(void)
irq = bcm63xx_get_irq_number(IRQ_TIMER);
ret = request_irq(irq, timer_interrupt, 0, "bcm63xx_timer", NULL);
if (ret) {
printk(KERN_ERR "bcm63xx_timer: failed to register irq\n");
pr_err("%s: failed to register irq\n", __func__);
return ret;
}

1
arch/mips/bmips/setup.c
View File

@ -157,7 +157,6 @@ void __init plat_mem_setup(void)
panic("no dtb found");
__dt_setup_arch(dtb);
strlcpy(arcs_cmdline, boot_command_line, COMMAND_LINE_SIZE);
for (q = bmips_quirk_list; q->quirk_fn; q++) {
if (of_flat_dt_is_compatible(of_get_flat_dt_root(),

1
arch/mips/boot/dts/Makefile
View File

@ -6,6 +6,7 @@ dts-dirs += mti
dts-dirs += netlogic
dts-dirs += qca
dts-dirs += ralink
dts-dirs += xilfpga
obj-y := $(addsuffix /, $(dts-dirs))

114
arch/mips/boot/dts/brcm/bcm7346.dtsi
View File

@ -87,14 +87,32 @@
compatible = "brcm,bcm7120-l2-intc";
reg = <0x406780 0x8>;
brcm,int-map-mask = <0x44>;
brcm,int-map-mask = <0x44>, <0xf000000>;
brcm,int-fwd-mask = <0x70000>;
interrupt-controller;
#interrupt-cells = <1>;
interrupt-parent = <&periph_intc>;
interrupts = <59>;
interrupts = <59>, <57>;
interrupt-names = "upg_main", "upg_bsc";
};
upg_aon_irq0_intc: upg_aon_irq0_intc@408b80 {
compatible = "brcm,bcm7120-l2-intc";
reg = <0x408b80 0x8>;
brcm,int-map-mask = <0x40>, <0x8000000>, <0x100000>;
brcm,int-fwd-mask = <0>;
brcm,irq-can-wake;
interrupt-controller;
#interrupt-cells = <1>;
interrupt-parent = <&periph_intc>;
interrupts = <60>, <58>, <62>;
interrupt-names = "upg_main_aon", "upg_bsc_aon",
"upg_spi";
};
sun_top_ctrl: syscon@404000 {
@ -144,6 +162,56 @@
status = "disabled";
};
bsca: i2c@406200 {
clock-frequency = <390000>;
compatible = "brcm,brcmstb-i2c";
interrupt-parent = <&upg_irq0_intc>;
reg = <0x406200 0x58>;
interrupts = <24>;
interrupt-names = "upg_bsca";
status = "disabled";
};
bscb: i2c@406280 {
clock-frequency = <390000>;
compatible = "brcm,brcmstb-i2c";
interrupt-parent = <&upg_irq0_intc>;
reg = <0x406280 0x58>;
interrupts = <25>;
interrupt-names = "upg_bscb";
status = "disabled";
};
bscc: i2c@406300 {
clock-frequency = <390000>;
compatible = "brcm,brcmstb-i2c";
interrupt-parent = <&upg_irq0_intc>;
reg = <0x406300 0x58>;
interrupts = <26>;
interrupt-names = "upg_bscc";
status = "disabled";
};
bscd: i2c@406380 {
clock-frequency = <390000>;
compatible = "brcm,brcmstb-i2c";
interrupt-parent = <&upg_irq0_intc>;
reg = <0x406380 0x58>;
interrupts = <27>;
interrupt-names = "upg_bscd";
status = "disabled";
};
bsce: i2c@408980 {
clock-frequency = <390000>;
compatible = "brcm,brcmstb-i2c";
interrupt-parent = <&upg_aon_irq0_intc>;
reg = <0x408980 0x58>;
interrupts = <27>;
interrupt-names = "upg_bsce";
status = "disabled";
};
enet0: ethernet@430000 {
phy-mode = "internal";
phy-handle = <&phy1>;
@ -246,5 +314,47 @@
interrupts = <76>;
status = "disabled";
};
sata: sata@181000 {
compatible = "brcm,bcm7425-ahci", "brcm,sata3-ahci";
reg-names = "ahci", "top-ctrl";
reg = <0x181000 0xa9c>, <0x180020 0x1c>;
interrupt-parent = <&periph_intc>;
interrupts = <40>;
#address-cells = <1>;
#size-cells = <0>;
brcm,broken-ncq;
brcm,broken-phy;
status = "disabled";
sata0: sata-port@0 {
reg = <0>;
phys = <&sata_phy0>;
};
sata1: sata-port@1 {
reg = <1>;
phys = <&sata_phy1>;
};
};
sata_phy: sata-phy@1800000 {
compatible = "brcm,bcm7425-sata-phy", "brcm,phy-sata3";
reg = <0x180100 0x0eff>;
reg-names = "phy";
#address-cells = <1>;
#size-cells = <0>;
status = "disabled";
sata_phy0: sata-phy@0 {
reg = <0>;
#phy-cells = <0>;
};
sata_phy1: sata-phy@1 {
reg = <1>;
#phy-cells = <0>;
};
};
};
};

62
arch/mips/boot/dts/brcm/bcm7358.dtsi
View File

@ -81,14 +81,32 @@
compatible = "brcm,bcm7120-l2-intc";
reg = <0x406600 0x8>;
brcm,int-map-mask = <0x44>;
brcm,int-map-mask = <0x44>, <0x7000000>;
brcm,int-fwd-mask = <0x70000>;
interrupt-controller;
#interrupt-cells = <1>;
interrupt-parent = <&periph_intc>;
interrupts = <56>;
interrupts = <56>, <54>;
interrupt-names = "upg_main", "upg_bsc";
};
upg_aon_irq0_intc: upg_aon_irq0_intc@408b80 {
compatible = "brcm,bcm7120-l2-intc";
reg = <0x408b80 0x8>;
brcm,int-map-mask = <0x40>, <0x8000000>, <0x100000>;
brcm,int-fwd-mask = <0>;
brcm,irq-can-wake;
interrupt-controller;
#interrupt-cells = <1>;
interrupt-parent = <&periph_intc>;
interrupts = <57>, <55>, <59>;
interrupt-names = "upg_main_aon", "upg_bsc_aon",
"upg_spi";
};
sun_top_ctrl: syscon@404000 {
@ -138,6 +156,46 @@
status = "disabled";
};
bsca: i2c@406200 {
clock-frequency = <390000>;
compatible = "brcm,brcmstb-i2c";
interrupt-parent = <&upg_irq0_intc>;
reg = <0x406200 0x58>;
interrupts = <24>;
interrupt-names = "upg_bsca";
status = "disabled";
};
bscb: i2c@406280 {
clock-frequency = <390000>;
compatible = "brcm,brcmstb-i2c";
interrupt-parent = <&upg_irq0_intc>;
reg = <0x406280 0x58>;
interrupts = <25>;
interrupt-names = "upg_bscb";
status = "disabled";
};
bscc: i2c@406300 {
clock-frequency = <390000>;
compatible = "brcm,brcmstb-i2c";
interrupt-parent = <&upg_irq0_intc>;
reg = <0x406300 0x58>;
interrupts = <26>;
interrupt-names = "upg_bscc";
status = "disabled";
};
bscd: i2c@408980 {
clock-frequency = <390000>;
compatible = "brcm,brcmstb-i2c";
interrupt-parent = <&upg_aon_irq0_intc>;
reg = <0x408980 0x58>;
interrupts = <27>;
interrupt-names = "upg_bscd";
status = "disabled";
};
enet0: ethernet@430000 {
phy-mode = "internal";
phy-handle = <&phy1>;

62
arch/mips/boot/dts/brcm/bcm7360.dtsi
View File

@ -81,14 +81,32 @@
compatible = "brcm,bcm7120-l2-intc";
reg = <0x406600 0x8>;
brcm,int-map-mask = <0x44>;
brcm,int-map-mask = <0x44>, <0x7000000>;
brcm,int-fwd-mask = <0x70000>;
interrupt-controller;
#interrupt-cells = <1>;
interrupt-parent = <&periph_intc>;
interrupts = <56>;
interrupts = <56>, <54>;
interrupt-names = "upg_main", "upg_bsc";
};
upg_aon_irq0_intc: upg_aon_irq0_intc@408b80 {
compatible = "brcm,bcm7120-l2-intc";
reg = <0x408b80 0x8>;
brcm,int-map-mask = <0x40>, <0x8000000>, <0x100000>;
brcm,int-fwd-mask = <0>;
brcm,irq-can-wake;
interrupt-controller;
#interrupt-cells = <1>;
interrupt-parent = <&periph_intc>;
interrupts = <57>, <55>, <59>;
interrupt-names = "upg_main_aon", "upg_bsc_aon",
"upg_spi";
};
sun_top_ctrl: syscon@404000 {
@ -138,6 +156,46 @@
status = "disabled";
};
bsca: i2c@406200 {
clock-frequency = <390000>;
compatible = "brcm,brcmstb-i2c";
interrupt-parent = <&upg_irq0_intc>;
reg = <0x406200 0x58>;
interrupts = <24>;
interrupt-names = "upg_bsca";
status = "disabled";
};
bscb: i2c@406280 {
clock-frequency = <390000>;
compatible = "brcm,brcmstb-i2c";
interrupt-parent = <&upg_irq0_intc>;
reg = <0x406280 0x58>;
interrupts = <25>;
interrupt-names = "upg_bscb";
status = "disabled";
};
bscc: i2c@406300 {
clock-frequency = <390000>;
compatible = "brcm,brcmstb-i2c";
interrupt-parent = <&upg_irq0_intc>;
reg = <0x406300 0x58>;
interrupts = <26>;
interrupt-names = "upg_bscc";
status = "disabled";
};
bscd: i2c@408980 {
clock-frequency = <390000>;
compatible = "brcm,brcmstb-i2c";
interrupt-parent = <&upg_aon_irq0_intc>;
reg = <0x408980 0x58>;
interrupts = <27>;
interrupt-names = "upg_bscd";
status = "disabled";
};
enet0: ethernet@430000 {
phy-mode = "internal";
phy-handle = <&phy1>;

94
arch/mips/boot/dts/brcm/bcm7362.dtsi
View File

@ -87,14 +87,32 @@
compatible = "brcm,bcm7120-l2-intc";
reg = <0x406600 0x8>;
brcm,int-map-mask = <0x44>;
brcm,int-map-mask = <0x44>, <0x7000000>;
brcm,int-fwd-mask = <0x70000>;
interrupt-controller;
#interrupt-cells = <1>;
interrupt-parent = <&periph_intc>;
interrupts = <56>;
interrupts = <56>, <54>;
interrupt-names = "upg_main", "upg_bsc";
};
upg_aon_irq0_intc: upg_aon_irq0_intc@408b80 {
compatible = "brcm,bcm7120-l2-intc";
reg = <0x408b80 0x8>;
brcm,int-map-mask = <0x40>, <0x8000000>, <0x100000>;
brcm,int-fwd-mask = <0>;
brcm,irq-can-wake;
interrupt-controller;
#interrupt-cells = <1>;
interrupt-parent = <&periph_intc>;
interrupts = <57>, <55>, <59>;
interrupt-names = "upg_main_aon", "upg_bsc_aon",
"upg_spi";
};
sun_top_ctrl: syscon@404000 {
@ -144,6 +162,36 @@
status = "disabled";
};
bsca: i2c@406200 {
clock-frequency = <390000>;
compatible = "brcm,brcmstb-i2c";
interrupt-parent = <&upg_irq0_intc>;
reg = <0x406200 0x58>;
interrupts = <24>;
interrupt-names = "upg_bsca";
status = "disabled";
};
bscb: i2c@406280 {
clock-frequency = <390000>;
compatible = "brcm,brcmstb-i2c";
interrupt-parent = <&upg_irq0_intc>;
reg = <0x406280 0x58>;
interrupts = <25>;
interrupt-names = "upg_bscb";
status = "disabled";
};
bscd: i2c@408980 {
clock-frequency = <390000>;
compatible = "brcm,brcmstb-i2c";
interrupt-parent = <&upg_aon_irq0_intc>;
reg = <0x408980 0x58>;
interrupts = <27>;
interrupt-names = "upg_bscd";
status = "disabled";
};
enet0: ethernet@430000 {
phy-mode = "internal";
phy-handle = <&phy1>;
@ -189,5 +237,47 @@
interrupts = <66>;
status = "disabled";
};
sata: sata@181000 {
compatible = "brcm,bcm7425-ahci", "brcm,sata3-ahci";
reg-names = "ahci", "top-ctrl";
reg = <0x181000 0xa9c>, <0x180020 0x1c>;
interrupt-parent = <&periph_intc>;
interrupts = <86>;
#address-cells = <1>;
#size-cells = <0>;
brcm,broken-ncq;
brcm,broken-phy;
status = "disabled";
sata0: sata-port@0 {
reg = <0>;
phys = <&sata_phy0>;
};
sata1: sata-port@1 {
reg = <1>;
phys = <&sata_phy1>;
};
};
sata_phy: sata-phy@1800000 {
compatible = "brcm,bcm7425-sata-phy", "brcm,phy-sata3";
reg = <0x180100 0x0eff>;
reg-names = "phy";
#address-cells = <1>;
#size-cells = <0>;
status = "disabled";
sata_phy0: sata-phy@0 {
reg = <0>;
#phy-cells = <0>;
};
sata_phy1: sata-phy@1 {
reg = <1>;
#phy-cells = <0>;
};
};
};
};

42
arch/mips/boot/dts/brcm/bcm7425.dtsi
View File

@ -221,5 +221,47 @@
interrupts = <73>;
status = "disabled";
};
sata: sata@181000 {
compatible = "brcm,bcm7425-ahci", "brcm,sata3-ahci";
reg-names = "ahci", "top-ctrl";
reg = <0x181000 0xa9c>, <0x180020 0x1c>;
interrupt-parent = <&periph_intc>;
interrupts = <40>;
#address-cells = <1>;
#size-cells = <0>;
brcm,broken-ncq;
brcm,broken-phy;
status = "disabled";
sata0: sata-port@0 {
reg = <0>;
phys = <&sata_phy0>;
};
sata1: sata-port@1 {
reg = <1>;
phys = <&sata_phy1>;
};
};
sata_phy: sata-phy@1800000 {
compatible = "brcm,bcm7425-sata-phy", "brcm,phy-sata3";
reg = <0x180100 0x0eff>;
reg-names = "phy";
#address-cells = <1>;
#size-cells = <0>;
status = "disabled";
sata_phy0: sata-phy@0 {
reg = <0>;
#phy-cells = <0>;
};
sata_phy1: sata-phy@1 {
reg = <1>;
#phy-cells = <0>;
};
};
};
};

28
arch/mips/boot/dts/brcm/bcm97346dbsmb.dts
View File

@ -29,6 +29,26 @@
status = "okay";
};
&bsca {
status = "okay";
};
&bscb {
status = "okay";
};
&bscc {
status = "okay";
};
&bscd {
status = "okay";
};
&bsce {
status = "okay";
};
&enet0 {
status = "okay";
};
@ -64,3 +84,11 @@
&ohci3 {
status = "okay";
};
&sata {
status = "okay";
};
&sata_phy {
status = "okay";
};

16
arch/mips/boot/dts/brcm/bcm97358svmb.dts
View File

@ -29,6 +29,22 @@
status = "okay";
};
&bsca {
status = "okay";
};
&bscb {
status = "okay";
};
&bscc {
status = "okay";
};
&bscd {
status = "okay";
};
&enet0 {
status = "okay";
};

16
arch/mips/boot/dts/brcm/bcm97360svmb.dts
View File

@ -29,6 +29,22 @@
status = "okay";
};
&bsca {
status = "okay";
};
&bscb {
status = "okay";
};
&bscc {
status = "okay";
};
&bscd {
status = "okay";
};
&enet0 {
status = "okay";
};

20
arch/mips/boot/dts/brcm/bcm97362svmb.dts
View File

@ -29,6 +29,18 @@
status = "okay";
};
&bsca {
status = "okay";
};
&bscb {
status = "okay";
};
&bscd {
status = "okay";
};
&enet0 {
status = "okay";
};
@ -40,3 +52,11 @@
&ohci0 {
status = "okay";
};
&sata {
status = "okay";
};
&sata_phy {
status = "okay";
};

4
arch/mips/boot/dts/mti/malta.dts
View File

@ -1,5 +1,9 @@
/dts-v1/;
/memreserve/ 0x00000000 0x00001000; /* YAMON exception vectors */
/memreserve/ 0x00001000 0x000ef000; /* YAMON */
/memreserve/ 0x000f0000 0x00010000; /* PIIX4 ISA memory */
/ {
#address-cells = <1>;
#size-cells = <1>;

9
arch/mips/boot/dts/xilfpga/Makefile Normal file
View File

@ -0,0 +1,9 @@
dtb-$(CONFIG_XILFPGA_NEXYS4DDR) += nexys4ddr.dtb
obj-y += $(patsubst %.dtb, %.dtb.o, $(dtb-y))
# Force kbuild to make empty built-in.o if necessary
obj- += dummy.o
always := $(dtb-y)
clean-files := *.dtb *.dtb.S

21
arch/mips/boot/dts/xilfpga/microAptiv.dtsi Normal file
View File

@ -0,0 +1,21 @@
/ {
#address-cells = <1>;
#size-cells = <1>;
compatible = "img,xilfpga";
cpus {
#address-cells = <1>;
#size-cells = <0>;
cpu@0 {
device_type = "cpu";
compatible = "mips,m14Kc";
clocks = <&ext>;
reg = <0>;
};
};
ext: ext {
compatible = "fixed-clock";
#clock-cells = <0>;
};
};

46
arch/mips/boot/dts/xilfpga/nexys4ddr.dts Normal file
View File

@ -0,0 +1,46 @@
/dts-v1/;
#include "microAptiv.dtsi"
/ {
compatible = "digilent,nexys4ddr";
memory {
device_type = "memory";
reg = <0x0 0x08000000>;
};
cpuintc: interrupt-controller@0 {
#address-cells = <0>;
#interrupt-cells = <1>;
interrupt-controller;
compatible = "mti,cpu-interrupt-controller";
};
axi_gpio: gpio@10600000 {
#gpio-cells = <1>;
compatible = "xlnx,xps-gpio-1.00.a";
gpio-controller;
reg = <0x10600000 0x10000>;
xlnx,all-inputs = <0x0>;
xlnx,dout-default = <0x0>;
xlnx,gpio-width = <0x16>;
xlnx,interrupt-present = <0x0>;
xlnx,is-dual = <0x0>;
xlnx,tri-default = <0xffffffff>;
} ;
axi_uart16550: serial@10400000 {
compatible = "ns16550a";
reg = <0x10400000 0x10000>;
reg-shift = <2>;
reg-offset = <0x1000>;
clocks = <&ext>;
};
};
&ext {
clock-frequency = <50000000>;
};

11
arch/mips/cavium-octeon/setup.c
View File

@ -1081,6 +1081,7 @@ void __init prom_free_prom_memory(void)
int octeon_prune_device_tree(void);
extern const char __appended_dtb;
extern const char __dtb_octeon_3xxx_begin;
extern const char __dtb_octeon_68xx_begin;
void __init device_tree_init(void)
@ -1088,11 +1089,19 @@ void __init device_tree_init(void)
const void *fdt;
bool do_prune;
#ifdef CONFIG_MIPS_ELF_APPENDED_DTB
if (!fdt_check_header(&__appended_dtb)) {
fdt = &__appended_dtb;
do_prune = false;
pr_info("Using appended Device Tree.\n");
} else
#endif
if (octeon_bootinfo->minor_version >= 3 && octeon_bootinfo->fdt_addr) {
fdt = phys_to_virt(octeon_bootinfo->fdt_addr);
if (fdt_check_header(fdt))
panic("Corrupt Device Tree passed to kernel.");
do_prune = false;
pr_info("Using passed Device Tree.\n");
} else if (OCTEON_IS_MODEL(OCTEON_CN68XX)) {
fdt = &__dtb_octeon_68xx_begin;
do_prune = true;
@ -1106,8 +1115,6 @@ void __init device_tree_init(void)
if (do_prune) {
octeon_prune_device_tree();
pr_info("Using internal Device Tree.\n");
} else {
pr_info("Using passed Device Tree.\n");
}
unflatten_and_copy_device_tree();
}

12
arch/mips/configs/bigsur_defconfig
View File

@ -122,20 +122,20 @@ CONFIG_EEPROM_MAX6875=y
CONFIG_IDE=y
CONFIG_BLK_DEV_IDECD=y
CONFIG_BLK_DEV_IDETAPE=y
CONFIG_IDE_GENERIC=y
CONFIG_BLK_DEV_GENERIC=y
CONFIG_BLK_DEV_CMD64X=y
CONFIG_BLK_DEV_IT8213=m
CONFIG_BLK_DEV_TC86C001=m
CONFIG_BLK_DEV_SD=y
CONFIG_CHR_DEV_ST=m
CONFIG_BLK_DEV_SR=m
CONFIG_CHR_DEV_ST=y
CONFIG_BLK_DEV_SR=y
CONFIG_BLK_DEV_SR_VENDOR=y
CONFIG_CHR_DEV_SG=m
CONFIG_CHR_DEV_SCH=m
CONFIG_ATA=y
CONFIG_SATA_SIL24=y
CONFIG_PATA_CMD64X=y
CONFIG_PATA_IT8213=m
CONFIG_PATA_SIL680=y
CONFIG_ATA_GENERIC=y
CONFIG_PATA_LEGACY=y
CONFIG_NETDEVICES=y
CONFIG_NET_ETHERNET=y
CONFIG_MII=y

3
arch/mips/configs/bmips_be_defconfig
View File

@ -8,7 +8,7 @@ CONFIG_MIPS_O32_FP64_SUPPORT=y
# CONFIG_SWAP is not set
CONFIG_NO_HZ=y
CONFIG_BLK_DEV_INITRD=y
# CONFIG_RD_GZIP is not set
CONFIG_RD_GZIP=y
CONFIG_EXPERT=y
# CONFIG_VM_EVENT_COUNTERS is not set
# CONFIG_SLUB_DEBUG is not set
@ -33,6 +33,7 @@ CONFIG_DEVTMPFS=y
CONFIG_DEVTMPFS_MOUNT=y
# CONFIG_STANDALONE is not set
# CONFIG_PREVENT_FIRMWARE_BUILD is not set
CONFIG_PRINTK_TIME=y
CONFIG_BRCMSTB_GISB_ARB=y
CONFIG_MTD=y
CONFIG_MTD_CFI=y

3
arch/mips/configs/bmips_stb_defconfig
View File

@ -9,7 +9,7 @@ CONFIG_MIPS_O32_FP64_SUPPORT=y
# CONFIG_SWAP is not set
CONFIG_NO_HZ=y
CONFIG_BLK_DEV_INITRD=y
# CONFIG_RD_GZIP is not set
CONFIG_RD_GZIP=y
CONFIG_EXPERT=y
# CONFIG_VM_EVENT_COUNTERS is not set
# CONFIG_SLUB_DEBUG is not set
@ -34,6 +34,7 @@ CONFIG_DEVTMPFS=y
CONFIG_DEVTMPFS_MOUNT=y
# CONFIG_STANDALONE is not set
# CONFIG_PREVENT_FIRMWARE_BUILD is not set
CONFIG_PRINTK_TIME=y
CONFIG_BRCMSTB_GISB_ARB=y
CONFIG_MTD=y
CONFIG_MTD_CFI=y

6
arch/mips/configs/capcella_defconfig
View File

@ -31,9 +31,9 @@ CONFIG_NETWORK_SECMARK=y
CONFIG_IP_SCTP=m
CONFIG_FW_LOADER=m
CONFIG_BLK_DEV_RAM=y
# CONFIG_MISC_DEVICES is not set
CONFIG_IDE=y
CONFIG_IDE_GENERIC=y
CONFIG_BLK_DEV_SD=y
CONFIG_ATA=y
CONFIG_PATA_LEGACY=y
CONFIG_NETDEVICES=y
CONFIG_PHYLIB=m
CONFIG_MARVELL_PHY=m

6
arch/mips/configs/e55_defconfig
View File

@ -14,9 +14,9 @@ CONFIG_MODVERSIONS=y
CONFIG_MODULE_SRCVERSION_ALL=y
# CONFIG_BLK_DEV_BSG is not set
CONFIG_BLK_DEV_RAM=y
# CONFIG_MISC_DEVICES is not set
CONFIG_IDE=y
CONFIG_IDE_GENERIC=y
CONFIG_BLK_DEV_SD=y
CONFIG_ATA=y
CONFIG_PATA_LEGACY=y
# CONFIG_INPUT_MOUSEDEV is not set
# CONFIG_INPUT_KEYBOARD is not set
# CONFIG_INPUT_MOUSE is not set

14
arch/mips/configs/fuloong2e_defconfig
View File

@ -34,7 +34,7 @@ CONFIG_MIPS32_N32=y
CONFIG_PM=y
# CONFIG_SUSPEND is not set
CONFIG_HIBERNATION=y
CONFIG_PM_STD_PARTITION="/dev/hda3"
CONFIG_PM_STD_PARTITION="/dev/sda3"
CONFIG_NET=y
CONFIG_PACKET=y
CONFIG_UNIX=y
@ -114,20 +114,16 @@ CONFIG_BLK_DEV_CRYPTOLOOP=m
CONFIG_BLK_DEV_RAM=m
CONFIG_CDROM_PKTCDVD=m
CONFIG_ATA_OVER_ETH=m
# CONFIG_MISC_DEVICES is not set
CONFIG_IDE=y
CONFIG_BLK_DEV_IDECD=y
CONFIG_IDE_TASK_IOCTL=y
CONFIG_IDE_GENERIC=y
CONFIG_BLK_DEV_GENERIC=y
CONFIG_BLK_DEV_VIA82CXXX=y
CONFIG_SCSI=y
CONFIG_BLK_DEV_SD=y
CONFIG_BLK_DEV_SR=y
CONFIG_BLK_DEV_SR_VENDOR=y
CONFIG_CHR_DEV_SG=y
CONFIG_SCSI_CONSTANTS=y
# CONFIG_SCSI_LOWLEVEL is not set
CONFIG_ATA=y
CONFIG_PATA_VIA=y
CONFIG_ATA_GENERIC=y
CONFIG_PATA_LEGACY=y
CONFIG_NETDEVICES=y
CONFIG_MACVLAN=m
CONFIG_VETH=m

10
arch/mips/configs/lasat_defconfig
View File

@ -35,11 +35,11 @@ CONFIG_MTD_CHAR=y
CONFIG_MTD_BLOCK=y
CONFIG_MTD_CFI=y
CONFIG_MTD_CFI_AMDSTD=y
# CONFIG_MISC_DEVICES is not set
CONFIG_IDE=y
CONFIG_IDE_GENERIC=y
CONFIG_BLK_DEV_GENERIC=y
CONFIG_BLK_DEV_CMD64X=y
CONFIG_BLK_DEV_SD=y
CONFIG_ATA=y
CONFIG_PATA_CMD64X=y
CONFIG_ATA_GENERIC=y
CONFIG_PATA_LEGACY=y
CONFIG_NETDEVICES=y
CONFIG_NET_ETHERNET=y
CONFIG_NET_PCI=y

11
arch/mips/configs/lemote2f_defconfig
View File

@ -108,16 +108,11 @@ CONFIG_BLK_DEV_LOOP=y
CONFIG_BLK_DEV_CRYPTOLOOP=m
CONFIG_BLK_DEV_RAM=y
CONFIG_BLK_DEV_RAM_SIZE=8192
# CONFIG_MISC_DEVICES is not set
CONFIG_IDE=y
CONFIG_IDE_TASK_IOCTL=y
# CONFIG_IDEPCI_PCIBUS_ORDER is not set
CONFIG_BLK_DEV_AMD74XX=y
CONFIG_SCSI=m
CONFIG_BLK_DEV_SD=m
CONFIG_BLK_DEV_SD=y
CONFIG_CHR_DEV_SG=m
CONFIG_SCSI_MULTI_LUN=y
# CONFIG_SCSI_LOWLEVEL is not set
CONFIG_ATA=y
CONFIG_PATA_AMD=y
CONFIG_MD=y
CONFIG_BLK_DEV_MD=m
CONFIG_MD_LINEAR=m

6
arch/mips/configs/malta_defconfig
View File

@ -241,14 +241,11 @@ CONFIG_BLK_DEV_NBD=m
CONFIG_BLK_DEV_RAM=y
CONFIG_CDROM_PKTCDVD=m
CONFIG_ATA_OVER_ETH=m
CONFIG_IDE=y
CONFIG_BLK_DEV_IDECD=y
CONFIG_IDE_GENERIC=y
CONFIG_RAID_ATTRS=m
CONFIG_BLK_DEV_SD=y
CONFIG_CHR_DEV_ST=m
CONFIG_CHR_DEV_OSST=m
CONFIG_BLK_DEV_SR=m
CONFIG_BLK_DEV_SR=y
CONFIG_BLK_DEV_SR_VENDOR=y
CONFIG_CHR_DEV_SG=m
CONFIG_SCSI_CONSTANTS=y
@ -265,6 +262,7 @@ CONFIG_AIC7XXX_RESET_DELAY_MS=15000
# CONFIG_AIC7XXX_DEBUG_ENABLE is not set
CONFIG_ATA=y
CONFIG_ATA_PIIX=y
CONFIG_PATA_LEGACY=y
CONFIG_MD=y
CONFIG_BLK_DEV_MD=m
CONFIG_MD_LINEAR=m

16
arch/mips/configs/malta_kvm_defconfig
View File

@ -248,17 +248,12 @@ CONFIG_CDROM_PKTCDVD=m
CONFIG_ATA_OVER_ETH=m
CONFIG_IDE=y
CONFIG_BLK_DEV_IDECD=y
CONFIG_IDE_GENERIC=y
CONFIG_BLK_DEV_GENERIC=y
CONFIG_BLK_DEV_PIIX=y
CONFIG_BLK_DEV_IT8213=m
CONFIG_BLK_DEV_TC86C001=m
CONFIG_RAID_ATTRS=m
CONFIG_SCSI=m
CONFIG_BLK_DEV_SD=m
CONFIG_BLK_DEV_SD=y
CONFIG_CHR_DEV_ST=m
CONFIG_CHR_DEV_OSST=m
CONFIG_BLK_DEV_SR=m
CONFIG_BLK_DEV_SR=y
CONFIG_BLK_DEV_SR_VENDOR=y
CONFIG_CHR_DEV_SG=m
CONFIG_SCSI_MULTI_LUN=y
@ -274,6 +269,13 @@ CONFIG_SCSI_AACRAID=m
CONFIG_SCSI_AIC7XXX=m
CONFIG_AIC7XXX_RESET_DELAY_MS=15000
# CONFIG_AIC7XXX_DEBUG_ENABLE is not set
CONFIG_ATA=y
CONFIG_ATA_PIIX=y
CONFIG_PATA_IT8213=m
CONFIG_PATA_OLDPIIX=y
CONFIG_PATA_MPIIX=y
CONFIG_ATA_GENERIC=y
CONFIG_PATA_LEGACY=y
CONFIG_MD=y
CONFIG_BLK_DEV_MD=m
CONFIG_MD_LINEAR=m

16
arch/mips/configs/malta_kvm_guest_defconfig
View File

@ -248,17 +248,12 @@ CONFIG_ATA_OVER_ETH=m
CONFIG_VIRTIO_BLK=y
CONFIG_IDE=y
CONFIG_BLK_DEV_IDECD=y
CONFIG_IDE_GENERIC=y
CONFIG_BLK_DEV_GENERIC=y
CONFIG_BLK_DEV_PIIX=y
CONFIG_BLK_DEV_IT8213=m
CONFIG_BLK_DEV_TC86C001=m
CONFIG_RAID_ATTRS=m
CONFIG_SCSI=m
CONFIG_BLK_DEV_SD=m
CONFIG_BLK_DEV_SD=y
CONFIG_CHR_DEV_ST=m
CONFIG_CHR_DEV_OSST=m
CONFIG_BLK_DEV_SR=m
CONFIG_BLK_DEV_SR=y
CONFIG_BLK_DEV_SR_VENDOR=y
CONFIG_CHR_DEV_SG=m
CONFIG_SCSI_MULTI_LUN=y
@ -274,6 +269,13 @@ CONFIG_SCSI_AACRAID=m
CONFIG_SCSI_AIC7XXX=m
CONFIG_AIC7XXX_RESET_DELAY_MS=15000
# CONFIG_AIC7XXX_DEBUG_ENABLE is not set
CONFIG_ATA=y
CONFIG_ATA_PIIX=y
CONFIG_PATA_IT8213=m
CONFIG_PATA_OLDPIIX=y
CONFIG_PATA_MPIIX=y
CONFIG_ATA_GENERIC=y
CONFIG_PATA_LEGACY=y
CONFIG_MD=y
CONFIG_BLK_DEV_MD=m
CONFIG_MD_LINEAR=m

11
arch/mips/configs/malta_qemu_32r6_defconfig
View File

@ -80,15 +80,14 @@ CONFIG_NET_CLS_IND=y
CONFIG_DEVTMPFS=y
CONFIG_BLK_DEV_LOOP=y
CONFIG_BLK_DEV_CRYPTOLOOP=m
CONFIG_IDE=y
# CONFIG_IDE_PROC_FS is not set
# CONFIG_IDEPCI_PCIBUS_ORDER is not set
CONFIG_BLK_DEV_GENERIC=y
CONFIG_BLK_DEV_PIIX=y
CONFIG_SCSI=y
CONFIG_BLK_DEV_SD=y
CONFIG_CHR_DEV_SG=y
# CONFIG_SCSI_LOWLEVEL is not set
CONFIG_ATA=y
CONFIG_ATA_PIIX=y
CONFIG_PATA_OLDPIIX=y
CONFIG_PATA_MPIIX=y
CONFIG_ATA_GENERIC=y
CONFIG_NETDEVICES=y
# CONFIG_NET_VENDOR_3COM is not set
# CONFIG_NET_VENDOR_ADAPTEC is not set

11
arch/mips/configs/maltaaprp_defconfig
View File

@ -81,15 +81,14 @@ CONFIG_NET_CLS_IND=y
CONFIG_DEVTMPFS=y
CONFIG_BLK_DEV_LOOP=y
CONFIG_BLK_DEV_CRYPTOLOOP=m
CONFIG_IDE=y
# CONFIG_IDE_PROC_FS is not set
# CONFIG_IDEPCI_PCIBUS_ORDER is not set
CONFIG_BLK_DEV_GENERIC=y
CONFIG_BLK_DEV_PIIX=y
CONFIG_SCSI=y
CONFIG_BLK_DEV_SD=y
CONFIG_CHR_DEV_SG=y
# CONFIG_SCSI_LOWLEVEL is not set
CONFIG_ATA=y
CONFIG_ATA_PIIX=y
CONFIG_PATA_OLDPIIX=y
CONFIG_PATA_MPIIX=y
CONFIG_ATA_GENERIC=y
CONFIG_NETDEVICES=y
# CONFIG_NET_VENDOR_3COM is not set
# CONFIG_NET_VENDOR_ADAPTEC is not set

11
arch/mips/configs/maltasmvp_eva_defconfig
View File

@ -85,15 +85,14 @@ CONFIG_NET_CLS_IND=y
CONFIG_DEVTMPFS=y
CONFIG_BLK_DEV_LOOP=y
CONFIG_BLK_DEV_CRYPTOLOOP=m
CONFIG_IDE=y
# CONFIG_IDE_PROC_FS is not set
# CONFIG_IDEPCI_PCIBUS_ORDER is not set
CONFIG_BLK_DEV_GENERIC=y
CONFIG_BLK_DEV_PIIX=y
CONFIG_SCSI=y
CONFIG_BLK_DEV_SD=y
CONFIG_CHR_DEV_SG=y
# CONFIG_SCSI_LOWLEVEL is not set
CONFIG_ATA=y
CONFIG_ATA_PIIX=y
CONFIG_PATA_OLDPIIX=y
CONFIG_PATA_MPIIX=y
CONFIG_ATA_GENERIC=y
CONFIG_NETDEVICES=y
# CONFIG_NET_VENDOR_3COM is not set
# CONFIG_NET_VENDOR_ADAPTEC is not set

11
arch/mips/configs/maltaup_defconfig
View File

@ -80,15 +80,14 @@ CONFIG_NET_CLS_IND=y
CONFIG_DEVTMPFS=y
CONFIG_BLK_DEV_LOOP=y
CONFIG_BLK_DEV_CRYPTOLOOP=m
CONFIG_IDE=y
# CONFIG_IDE_PROC_FS is not set
# CONFIG_IDEPCI_PCIBUS_ORDER is not set
CONFIG_BLK_DEV_GENERIC=y
CONFIG_BLK_DEV_PIIX=y
CONFIG_SCSI=y
CONFIG_BLK_DEV_SD=y
CONFIG_CHR_DEV_SG=y
# CONFIG_SCSI_LOWLEVEL is not set
CONFIG_ATA=y
CONFIG_ATA_PIIX=y
CONFIG_PATA_OLDPIIX=y
CONFIG_PATA_MPIIX=y
CONFIG_ATA_GENERIC=y
CONFIG_NETDEVICES=y
# CONFIG_NET_VENDOR_3COM is not set
# CONFIG_NET_VENDOR_ADAPTEC is not set

16
arch/mips/configs/maltaup_xpa_defconfig
View File

@ -244,17 +244,12 @@ CONFIG_CDROM_PKTCDVD=m
CONFIG_ATA_OVER_ETH=m
CONFIG_IDE=y
CONFIG_BLK_DEV_IDECD=y
CONFIG_IDE_GENERIC=y
CONFIG_BLK_DEV_GENERIC=y
CONFIG_BLK_DEV_PIIX=y
CONFIG_BLK_DEV_IT8213=m
CONFIG_BLK_DEV_TC86C001=m
CONFIG_RAID_ATTRS=m
CONFIG_SCSI=m
CONFIG_BLK_DEV_SD=m
CONFIG_BLK_DEV_SD=y
CONFIG_CHR_DEV_ST=m
CONFIG_CHR_DEV_OSST=m
CONFIG_BLK_DEV_SR=m
CONFIG_BLK_DEV_SR=y
CONFIG_BLK_DEV_SR_VENDOR=y
CONFIG_CHR_DEV_SG=m
CONFIG_SCSI_CONSTANTS=y
@ -269,6 +264,13 @@ CONFIG_SCSI_AACRAID=m
CONFIG_SCSI_AIC7XXX=m
CONFIG_AIC7XXX_RESET_DELAY_MS=15000
# CONFIG_AIC7XXX_DEBUG_ENABLE is not set
CONFIG_ATA=y
CONFIG_ATA_PIIX=y
CONFIG_PATA_IT8213=m
CONFIG_PATA_OLDPIIX=y
CONFIG_PATA_MPIIX=y
CONFIG_ATA_GENERIC=y
CONFIG_PATA_LEGACY=y
CONFIG_MD=y
CONFIG_BLK_DEV_MD=m
CONFIG_MD_LINEAR=m

6
arch/mips/configs/mpc30x_defconfig
View File

@ -27,9 +27,9 @@ CONFIG_INET_XFRM_MODE_BEET=m
CONFIG_NETWORK_SECMARK=y
CONFIG_CONNECTOR=m
CONFIG_ATA_OVER_ETH=m
# CONFIG_MISC_DEVICES is not set
CONFIG_IDE=y
CONFIG_IDE_GENERIC=y
CONFIG_BLK_DEV_SD=y
CONFIG_ATA=y
CONFIG_PATA_LEGACY=y
CONFIG_NETDEVICES=y
# CONFIG_NETDEV_1000 is not set
# CONFIG_NETDEV_10000 is not set

40
arch/mips/configs/xilfpga_defconfig Normal file
View File

@ -0,0 +1,40 @@
CONFIG_MACH_XILFPGA=y
# CONFIG_COMPACTION is not set
# CONFIG_LOCALVERSION_AUTO is not set
CONFIG_EMBEDDED=y
# CONFIG_VM_EVENT_COUNTERS is not set
# CONFIG_COMPAT_BRK is not set
CONFIG_SLAB=y
# CONFIG_BLOCK is not set
# CONFIG_SUSPEND is not set
# CONFIG_UEVENT_HELPER is not set
CONFIG_DEVTMPFS=y
CONFIG_DEVTMPFS_MOUNT=y
# CONFIG_STANDALONE is not set
# CONFIG_PREVENT_FIRMWARE_BUILD is not set
# CONFIG_FW_LOADER is not set
# CONFIG_ALLOW_DEV_COREDUMP is not set
# CONFIG_INPUT_MOUSEDEV is not set
# CONFIG_INPUT_KEYBOARD is not set
# CONFIG_INPUT_MOUSE is not set
# CONFIG_SERIO is not set
CONFIG_VT_HW_CONSOLE_BINDING=y
# CONFIG_UNIX98_PTYS is not set
# CONFIG_LEGACY_PTYS is not set
CONFIG_SERIAL_8250=y
CONFIG_SERIAL_8250_CONSOLE=y
CONFIG_SERIAL_OF_PLATFORM=y
# CONFIG_HW_RANDOM is not set
CONFIG_GPIO_SYSFS=y
CONFIG_GPIO_XILINX=y
# CONFIG_HWMON is not set
# CONFIG_USB_SUPPORT is not set
# CONFIG_MIPS_PLATFORM_DEVICES is not set
# CONFIG_IOMMU_SUPPORT is not set
# CONFIG_PROC_PAGE_MONITOR is not set
# CONFIG_MISC_FILESYSTEMS is not set
CONFIG_PANIC_ON_OOPS=y
# CONFIG_SCHED_DEBUG is not set
# CONFIG_FTRACE is not set
CONFIG_CMDLINE_BOOL=y
CONFIG_CMDLINE="console=ttyS0,115200"

5
arch/mips/include/asm/abi.h
View File

@ -11,19 +11,20 @@
#include <asm/signal.h>
#include <asm/siginfo.h>
#include <asm/vdso.h>
struct mips_abi {
int (* const setup_frame)(void *sig_return, struct ksignal *ksig,
struct pt_regs *regs, sigset_t *set);
const unsigned long signal_return_offset;
int (* const setup_rt_frame)(void *sig_return, struct ksignal *ksig,
struct pt_regs *regs, sigset_t *set);
const unsigned long rt_signal_return_offset;
const unsigned long restart;
unsigned off_sc_fpregs;
unsigned off_sc_fpc_csr;
unsigned off_sc_used_math;
struct mips_vdso_image *vdso;
};
#endif /* _ASM_ABI_H */

2
arch/mips/include/asm/atomic.h
View File

@ -507,7 +507,7 @@ static __inline__ long atomic64_sub_if_positive(long i, atomic64_t * v)
* @u: ...unless v is equal to u.
*
* Atomically adds @a to @v, so long as it was not @u.
* Returns the old value of @v.
* Returns true iff @v was not @u.
*/
static __inline__ int atomic64_add_unless(atomic64_t *v, long a, long u)
{

27
arch/mips/include/asm/bcache.h
View File

@ -9,6 +9,7 @@
#ifndef _ASM_BCACHE_H
#define _ASM_BCACHE_H
#include <linux/types.h>
/* Some R4000 / R4400 / R4600 / R5000 machines may have a non-dma-coherent,
chipset implemented caches. On machines with other CPUs the CPU does the
@ -18,6 +19,9 @@ struct bcache_ops {
void (*bc_disable)(void);
void (*bc_wback_inv)(unsigned long page, unsigned long size);
void (*bc_inv)(unsigned long page, unsigned long size);
void (*bc_prefetch_enable)(void);
void (*bc_prefetch_disable)(void);
bool (*bc_prefetch_is_enabled)(void);
};
extern void indy_sc_init(void);
@ -46,6 +50,26 @@ static inline void bc_inv(unsigned long page, unsigned long size)
bcops->bc_inv(page, size);
}
static inline void bc_prefetch_enable(void)
{
if (bcops->bc_prefetch_enable)
bcops->bc_prefetch_enable();
}
static inline void bc_prefetch_disable(void)
{
if (bcops->bc_prefetch_disable)
bcops->bc_prefetch_disable();
}
static inline bool bc_prefetch_is_enabled(void)
{
if (bcops->bc_prefetch_is_enabled)
return bcops->bc_prefetch_is_enabled();
return false;
}
#else /* !defined(CONFIG_BOARD_SCACHE) */
/* Not R4000 / R4400 / R4600 / R5000. */
@ -54,6 +78,9 @@ static inline void bc_inv(unsigned long page, unsigned long size)
#define bc_disable() do { } while (0)
#define bc_wback_inv(page, size) do { } while (0)
#define bc_inv(page, size) do { } while (0)
#define bc_prefetch_enable() do { } while (0)
#define bc_prefetch_disable() do { } while (0)
#define bc_prefetch_is_enabled() 0
#endif /* !defined(CONFIG_BOARD_SCACHE) */

11
arch/mips/include/asm/cdmm.h
View File

@ -84,6 +84,17 @@ void mips_cdmm_driver_unregister(struct mips_cdmm_driver *);
module_driver(__mips_cdmm_driver, mips_cdmm_driver_register, \
mips_cdmm_driver_unregister)
/*
* builtin_mips_cdmm_driver() - Helper macro for drivers that don't do anything
* special in init and have no exit. This eliminates some boilerplate. Each
* driver may only use this macro once, and calling it replaces device_initcall
* (or in some cases, the legacy __initcall). This is meant to be a direct
* parallel of module_mips_cdmm_driver() above but without the __exit stuff that
* is not used for builtin cases.
*/
#define builtin_mips_cdmm_driver(__mips_cdmm_driver) \
builtin_driver(__mips_cdmm_driver, mips_cdmm_driver_register)
/* drivers/tty/mips_ejtag_fdc.c */
#ifdef CONFIG_MIPS_EJTAG_FDC_EARLYCON

29
arch/mips/include/asm/clocksource.h Normal file
View File

@ -0,0 +1,29 @@
/*
* Copyright (C) 2015 Imagination Technologies
* Author: Alex Smith <alex.smith@imgtec.com>
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License as published by the
* Free Software Foundation; either version 2 of the License, or (at your
* option) any later version.
*/
#ifndef __ASM_CLOCKSOURCE_H
#define __ASM_CLOCKSOURCE_H
#include <linux/types.h>
/* VDSO clocksources. */
#define VDSO_CLOCK_NONE 0 /* No suitable clocksource. */
#define VDSO_CLOCK_R4K 1 /* Use the coprocessor 0 count. */
#define VDSO_CLOCK_GIC 2 /* Use the GIC. */
/**
* struct arch_clocksource_data - Architecture-specific clocksource information.
* @vdso_clock_mode: Method the VDSO should use to access the clocksource.
*/
struct arch_clocksource_data {
u8 vdso_clock_mode;
};
#endif /* __ASM_CLOCKSOURCE_H */

74
arch/mips/include/asm/compat.h
View File

@ -130,6 +130,8 @@ typedef union compat_sigval {
compat_uptr_t sival_ptr;
} compat_sigval_t;
/* Can't use the generic version because si_code and si_errno are swapped */
#define SI_PAD_SIZE32 (128/sizeof(int) - 3)
typedef struct compat_siginfo {
@ -138,57 +140,61 @@ typedef struct compat_siginfo {
int si_errno;
union {
int _pad[SI_PAD_SIZE32];
int _pad[128 / sizeof(int) - 3];
/* kill() */
struct {
compat_pid_t _pid; /* sender's pid */
__compat_uid_t _uid; /* sender's uid */
__compat_uid32_t _uid; /* sender's uid */
} _kill;
/* SIGCHLD */
struct {
compat_pid_t _pid; /* which child */
__compat_uid_t _uid; /* sender's uid */
int _status; /* exit code */
compat_clock_t _utime;
compat_clock_t _stime;
} _sigchld;
/* IRIX SIGCHLD */
struct {
compat_pid_t _pid; /* which child */
compat_clock_t _utime;
int _status; /* exit code */
compat_clock_t _stime;
} _irix_sigchld;
/* SIGILL, SIGFPE, SIGSEGV, SIGBUS */
struct {
s32 _addr; /* faulting insn/memory ref. */
} _sigfault;
/* SIGPOLL, SIGXFSZ (To do ...) */
struct {
int _band; /* POLL_IN, POLL_OUT, POLL_MSG */
int _fd;
} _sigpoll;
/* POSIX.1b timers */
struct {
timer_t _tid; /* timer id */
compat_timer_t _tid; /* timer id */
int _overrun; /* overrun count */
compat_sigval_t _sigval;/* same as below */
int _sys_private; /* not to be passed to user */
compat_sigval_t _sigval; /* same as below */
} _timer;
/* POSIX.1b signals */
struct {
compat_pid_t _pid; /* sender's pid */
__compat_uid_t _uid; /* sender's uid */
__compat_uid32_t _uid; /* sender's uid */
compat_sigval_t _sigval;
} _rt;
/* SIGCHLD */
struct {
compat_pid_t _pid; /* which child */
__compat_uid32_t _uid; /* sender's uid */
int _status; /* exit code */
compat_clock_t _utime;
compat_clock_t _stime;
} _sigchld;
/* SIGILL, SIGFPE, SIGSEGV, SIGBUS */
struct {
compat_uptr_t _addr; /* faulting insn/memory ref. */
#ifdef __ARCH_SI_TRAPNO
int _trapno; /* TRAP # which caused the signal */
#endif
short _addr_lsb; /* LSB of the reported address */
struct {
compat_uptr_t _lower;
compat_uptr_t _upper;
} _addr_bnd;
} _sigfault;
/* SIGPOLL */
struct {
compat_long_t _band; /* POLL_IN, POLL_OUT, POLL_MSG */
int _fd;
} _sigpoll;
struct {
compat_uptr_t _call_addr; /* calling insn */
int _syscall; /* triggering system call number */
compat_uint_t _arch; /* AUDIT_ARCH_* of syscall */
} _sigsys;
} _sifields;
} compat_siginfo_t;

6
arch/mips/include/asm/cpu-features.h
View File

@ -131,11 +131,7 @@
#endif
#ifndef cpu_has_rixi
# ifdef CONFIG_64BIT
# define cpu_has_rixi (cpu_data[0].options & MIPS_CPU_RIXI)
# else /* CONFIG_32BIT */
# define cpu_has_rixi ((cpu_data[0].options & MIPS_CPU_RIXI) && !cpu_has_64bits)
# endif
#define cpu_has_rixi (cpu_data[0].options & MIPS_CPU_RIXI)
#endif
#ifndef cpu_has_mmips

22
arch/mips/include/asm/debug.h Normal file
View File

@ -0,0 +1,22 @@
/*
* Copyright (C) 2015 Imagination Technologies
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License as published by the
* Free Software Foundation; either version 2 of the License, or (at your
* option) any later version.
*/
#ifndef __MIPS_ASM_DEBUG_H__
#define __MIPS_ASM_DEBUG_H__
#include <linux/dcache.h>
/*
* mips_debugfs_dir corresponds to the "mips" directory at the top level
* of the DebugFS hierarchy. MIPS-specific DebugFS entires should be
* placed beneath this directory.
*/
extern struct dentry *mips_debugfs_dir;
#endif /* __MIPS_ASM_DEBUG_H__ */

7
arch/mips/include/asm/elf.h
View File

@ -8,6 +8,7 @@
#ifndef _ASM_ELF_H
#define _ASM_ELF_H
#include <linux/auxvec.h>
#include <linux/fs.h>
#include <uapi/linux/elf.h>
@ -419,6 +420,12 @@ extern const char *__elf_platform;
#define ELF_ET_DYN_BASE (TASK_SIZE / 3 * 2)
#endif
#define ARCH_DLINFO \
do { \
NEW_AUX_ENT(AT_SYSINFO_EHDR, \
(unsigned long)current->mm->context.vdso); \
} while (0)
#define ARCH_HAS_SETUP_ADDITIONAL_PAGES 1
struct linux_binprm;
extern int arch_setup_additional_pages(struct linux_binprm *bprm,

16
arch/mips/include/asm/fw/fw.h
View File

@ -10,21 +10,6 @@
#include <asm/bootinfo.h> /* For cleaner code... */
enum fw_memtypes {
fw_dontuse,
fw_code,
fw_free,
};
typedef struct {
unsigned long base; /* Within KSEG0 */
unsigned int size; /* bytes */
enum fw_memtypes type; /* fw_memtypes */
} fw_memblock_t;
/* Maximum number of memory block descriptors. */
#define FW_MAX_MEMBLOCKS 32
extern int fw_argc;
extern int *_fw_argv;
extern int *_fw_envp;
@ -38,7 +23,6 @@ extern int *_fw_envp;
extern void fw_init_cmdline(void);
extern char *fw_getcmdline(void);
extern fw_memblock_t *fw_getmdesc(int);
extern void fw_meminit(void);
extern char *fw_getenv(char *name);
extern unsigned long fw_getenvl(char *name);

5
arch/mips/include/asm/mach-bcm47xx/bcm47xx.h
View File

@ -48,11 +48,6 @@ extern enum bcm47xx_bus_type bcm47xx_bus_type;
void bcm47xx_fill_sprom(struct ssb_sprom *sprom, const char *prefix,
bool fallback);
#ifdef CONFIG_BCM47XX_SSB
void bcm47xx_fill_ssb_boardinfo(struct ssb_boardinfo *boardinfo,
const char *prefix);
#endif
void bcm47xx_set_system_type(u16 chip_id);
#endif /* __ASM_BCM47XX_H */

14
arch/mips/include/asm/mach-lantiq/xway/lantiq_soc.h
View File

@ -35,6 +35,17 @@
#define SOC_ID_VRX268_2 0x00C /* v1.2 */
#define SOC_ID_GRX288_2 0x00D /* v1.2 */
#define SOC_ID_GRX282_2 0x00E /* v1.2 */
#define SOC_ID_VRX220 0x000
#define SOC_ID_ARX362 0x004
#define SOC_ID_ARX368 0x005
#define SOC_ID_ARX382 0x007
#define SOC_ID_ARX388 0x008
#define SOC_ID_URX388 0x009
#define SOC_ID_GRX383 0x010
#define SOC_ID_GRX369 0x011
#define SOC_ID_GRX387 0x00F
#define SOC_ID_GRX389 0x012
/* SoC Types */
#define SOC_TYPE_DANUBE 0x01
@ -43,6 +54,9 @@
#define SOC_TYPE_VR9 0x04 /* v1.1 */
#define SOC_TYPE_VR9_2 0x05 /* v1.2 */
#define SOC_TYPE_AMAZON_SE 0x06
#define SOC_TYPE_AR10 0x07
#define SOC_TYPE_GRX390 0x08
#define SOC_TYPE_VRX220 0x09
/* BOOT_SEL - find what boot media we have */
#define BS_EXT_ROM 0x0

29
arch/mips/include/asm/mach-malta/malta-dtshim.h Normal file
View File

@ -0,0 +1,29 @@
/*
* Copyright (C) 2015 Imagination Technologies
* Author: Paul Burton <paul.burton@imgtec.com>
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License as published by the
* Free Software Foundation; either version 2 of the License, or (at your
* option) any later version.
*/
#ifndef __MIPS_MALTA_DTSHIM_H__
#define __MIPS_MALTA_DTSHIM_H__
#include <linux/init.h>
#ifdef CONFIG_MIPS_MALTA
extern void __init *malta_dt_shim(void *fdt);
#else /* !CONFIG_MIPS_MALTA */
static inline void *malta_dt_shim(void *fdt)
{
return fdt;
}
#endif /* !CONFIG_MIPS_MALTA */
#endif /* __MIPS_MALTA_DTSHIM_H__ */

8
arch/mips/include/asm/mach-ralink/mt7620.h
View File

@ -13,17 +13,11 @@
#ifndef _MT7620_REGS_H_
#define _MT7620_REGS_H_
enum mt762x_soc_type {
MT762X_SOC_UNKNOWN = 0,
MT762X_SOC_MT7620A,
MT762X_SOC_MT7620N,
MT762X_SOC_MT7628AN,
};
#define MT7620_SYSC_BASE 0x10000000
#define SYSC_REG_CHIP_NAME0 0x00
#define SYSC_REG_CHIP_NAME1 0x04
#define SYSC_REG_EFUSE_CFG 0x08
#define SYSC_REG_CHIP_REV 0x0c
#define SYSC_REG_SYSTEM_CONFIG0 0x10
#define SYSC_REG_SYSTEM_CONFIG1 0x14

17
arch/mips/include/asm/mach-ralink/ralink_regs.h
View File

@ -13,6 +13,23 @@
#ifndef _RALINK_REGS_H_
#define _RALINK_REGS_H_
enum ralink_soc_type {
RALINK_UNKNOWN = 0,
RT2880_SOC,
RT3883_SOC,
RT305X_SOC_RT3050,
RT305X_SOC_RT3052,
RT305X_SOC_RT3350,
RT305X_SOC_RT3352,
RT305X_SOC_RT5350,
MT762X_SOC_MT7620A,
MT762X_SOC_MT7620N,
MT762X_SOC_MT7621AT,
MT762X_SOC_MT7628AN,
MT762X_SOC_MT7688,
};
extern enum ralink_soc_type ralink_soc;
extern __iomem void *rt_sysc_membase;
extern __iomem void *rt_memc_membase;

21
arch/mips/include/asm/mach-ralink/rt305x.h
View File

@ -13,25 +13,16 @@
#ifndef _RT305X_REGS_H_
#define _RT305X_REGS_H_
enum rt305x_soc_type {
RT305X_SOC_UNKNOWN = 0,
RT305X_SOC_RT3050,
RT305X_SOC_RT3052,
RT305X_SOC_RT3350,
RT305X_SOC_RT3352,
RT305X_SOC_RT5350,
};
extern enum rt305x_soc_type rt305x_soc;
extern enum ralink_soc_type ralink_soc;
static inline int soc_is_rt3050(void)
{
return rt305x_soc == RT305X_SOC_RT3050;
return ralink_soc == RT305X_SOC_RT3050;
}
static inline int soc_is_rt3052(void)
{
return rt305x_soc == RT305X_SOC_RT3052;
return ralink_soc == RT305X_SOC_RT3052;
}
static inline int soc_is_rt305x(void)
@ -41,17 +32,17 @@ static inline int soc_is_rt305x(void)
static inline int soc_is_rt3350(void)
{
return rt305x_soc == RT305X_SOC_RT3350;
return ralink_soc == RT305X_SOC_RT3350;
}
static inline int soc_is_rt3352(void)
{
return rt305x_soc == RT305X_SOC_RT3352;
return ralink_soc == RT305X_SOC_RT3352;
}
static inline int soc_is_rt5350(void)
{
return rt305x_soc == RT305X_SOC_RT5350;
return ralink_soc == RT305X_SOC_RT5350;
}
#define RT305X_SYSC_BASE 0x10000000

18
arch/mips/include/asm/mach-xilfpga/irq.h Normal file
View File

@ -0,0 +1,18 @@
/*
* Copyright (C) 2015 Imagination Technologies
* Author: Zubair Lutfullah Kakakhel <Zubair.Kakakhel@imgtec.com>
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License as published by the
* Free Software Foundation; either version 2 of the License, or (at your
* option) any later version.
*/
#ifndef __MIPS_ASM_MACH_XILFPGA_IRQ_H__
#define __MIPS_ASM_MACH_XILFPGA_IRQ_H__
#define NR_IRQS 32
#include_next <irq.h>
#endif /* __MIPS_ASM_MACH_XILFPGA_IRQ_H__ */

78
arch/mips/include/asm/mips-cm.h
View File

@ -11,6 +11,7 @@
#ifndef __MIPS_ASM_MIPS_CM_H__
#define __MIPS_ASM_MIPS_CM_H__
#include <linux/bitops.h>
#include <linux/errno.h>
#include <linux/io.h>
#include <linux/types.h>
@ -36,12 +37,12 @@ extern phys_addr_t __mips_cm_phys_base(void);
/*
* mips_cm_is64 - determine CM register width
*
* The CM register width is processor and CM specific. A 64-bit processor
* usually has a 64-bit CM and a 32-bit one has a 32-bit CM but a 64-bit
* processor could come with a 32-bit CM. Moreover, accesses on 64-bit CMs
* can be done either using regular 64-bit load/store instructions, or 32-bit
* load/store instruction on 32-bit register pairs. We opt for using 64-bit
* accesses on 64-bit CMs and kernels and 32-bit in any other case.
* The CM register width is determined by the version of the CM, with CM3
* introducing 64 bit GCRs and all prior CM versions having 32 bit GCRs.
* However we may run a kernel built for MIPS32 on a system with 64 bit GCRs,
* or vice-versa. This variable indicates the width of the memory accesses
* that the kernel will perform to GCRs, which may differ from the actual
* width of the GCRs.
*
* It's set to 0 for 32-bit accesses and 1 for 64-bit accesses.
*/
@ -125,7 +126,17 @@ static inline u32 read32_gcr_##name(void) \
\
static inline u64 read64_gcr_##name(void) \
{ \
return __raw_readq(addr_gcr_##name()); \
void __iomem *addr = addr_gcr_##name(); \
u64 ret; \
\
if (mips_cm_is64) { \
ret = __raw_readq(addr); \
} else { \
ret = __raw_readl(addr); \
ret |= (u64)__raw_readl(addr + 0x4) << 32; \
} \
\
return ret; \
} \
\
static inline unsigned long read_gcr_##name(void) \
@ -195,6 +206,8 @@ BUILD_CM_R_(gic_status, MIPS_CM_GCB_OFS + 0xd0)
BUILD_CM_R_(cpc_status, MIPS_CM_GCB_OFS + 0xf0)
BUILD_CM_RW(l2_config, MIPS_CM_GCB_OFS + 0x130)
BUILD_CM_RW(sys_config2, MIPS_CM_GCB_OFS + 0x150)
BUILD_CM_RW(l2_pft_control, MIPS_CM_GCB_OFS + 0x300)
BUILD_CM_RW(l2_pft_control_b, MIPS_CM_GCB_OFS + 0x308)
/* Core Local & Core Other register accessor functions */
BUILD_CM_Cx_RW(reset_release, 0x00)
@ -245,11 +258,14 @@ BUILD_CM_Cx_R_(tcid_8_priority, 0x80)
((minor) << CM_GCR_REV_MINOR_SHF))
#define CM_REV_CM2 CM_ENCODE_REV(6, 0)
#define CM_REV_CM2_5 CM_ENCODE_REV(7, 0)
#define CM_REV_CM3 CM_ENCODE_REV(8, 0)
/* GCR_ERROR_CAUSE register fields */
#define CM_GCR_ERROR_CAUSE_ERRTYPE_SHF 27
#define CM_GCR_ERROR_CAUSE_ERRTYPE_MSK (_ULCAST_(0x1f) << 27)
#define CM3_GCR_ERROR_CAUSE_ERRTYPE_SHF 58
#define CM3_GCR_ERROR_CAUSE_ERRTYPE_MSK GENMASK_ULL(63, 58)
#define CM_GCR_ERROR_CAUSE_ERRINFO_SHF 0
#define CM_GCR_ERROR_CAUSE_ERRINGO_MSK (_ULCAST_(0x7ffffff) << 0)
@ -321,6 +337,20 @@ BUILD_CM_Cx_R_(tcid_8_priority, 0x80)
#define CM_GCR_SYS_CONFIG2_MAXVPW_SHF 0
#define CM_GCR_SYS_CONFIG2_MAXVPW_MSK (_ULCAST_(0xf) << 0)
/* GCR_L2_PFT_CONTROL register fields */
#define CM_GCR_L2_PFT_CONTROL_PAGEMASK_SHF 12
#define CM_GCR_L2_PFT_CONTROL_PAGEMASK_MSK (_ULCAST_(0xfffff) << 12)
#define CM_GCR_L2_PFT_CONTROL_PFTEN_SHF 8
#define CM_GCR_L2_PFT_CONTROL_PFTEN_MSK (_ULCAST_(0x1) << 8)
#define CM_GCR_L2_PFT_CONTROL_NPFT_SHF 0
#define CM_GCR_L2_PFT_CONTROL_NPFT_MSK (_ULCAST_(0xff) << 0)
/* GCR_L2_PFT_CONTROL_B register fields */
#define CM_GCR_L2_PFT_CONTROL_B_CEN_SHF 8
#define CM_GCR_L2_PFT_CONTROL_B_CEN_MSK (_ULCAST_(0x1) << 8)
#define CM_GCR_L2_PFT_CONTROL_B_PORTID_SHF 0
#define CM_GCR_L2_PFT_CONTROL_B_PORTID_MSK (_ULCAST_(0xff) << 0)
/* GCR_Cx_COHERENCE register fields */
#define CM_GCR_Cx_COHERENCE_COHDOMAINEN_SHF 0
#define CM_GCR_Cx_COHERENCE_COHDOMAINEN_MSK (_ULCAST_(0xff) << 0)
@ -329,11 +359,15 @@ BUILD_CM_Cx_R_(tcid_8_priority, 0x80)
#define CM_GCR_Cx_CONFIG_IOCUTYPE_SHF 10
#define CM_GCR_Cx_CONFIG_IOCUTYPE_MSK (_ULCAST_(0x3) << 10)
#define CM_GCR_Cx_CONFIG_PVPE_SHF 0
#define CM_GCR_Cx_CONFIG_PVPE_MSK (_ULCAST_(0x1ff) << 0)
#define CM_GCR_Cx_CONFIG_PVPE_MSK (_ULCAST_(0x3ff) << 0)
/* GCR_Cx_OTHER register fields */
#define CM_GCR_Cx_OTHER_CORENUM_SHF 16
#define CM_GCR_Cx_OTHER_CORENUM_MSK (_ULCAST_(0xffff) << 16)
#define CM3_GCR_Cx_OTHER_CORE_SHF 8
#define CM3_GCR_Cx_OTHER_CORE_MSK (_ULCAST_(0x3f) << 8)
#define CM3_GCR_Cx_OTHER_VP_SHF 0
#define CM3_GCR_Cx_OTHER_VP_MSK (_ULCAST_(0x7) << 0)
/* GCR_Cx_RESET_BASE register fields */
#define CM_GCR_Cx_RESET_BASE_BEVEXCBASE_SHF 12
@ -444,4 +478,32 @@ static inline unsigned int mips_cm_vp_id(unsigned int cpu)
return (core * mips_cm_max_vp_width()) + vp;
}
#ifdef CONFIG_MIPS_CM
/**
* mips_cm_lock_other - lock access to another core
* @core: the other core to be accessed
* @vp: the VP within the other core to be accessed
*
* Call before operating upon a core via the 'other' register region in
* order to prevent the region being moved during access. Must be followed
* by a call to mips_cm_unlock_other.
*/
extern void mips_cm_lock_other(unsigned int core, unsigned int vp);
/**
* mips_cm_unlock_other - unlock access to another core
*
* Call after operating upon another core via the 'other' register region.
* Must be called after mips_cm_lock_other.
*/
extern void mips_cm_unlock_other(void);
#else /* !CONFIG_MIPS_CM */
static inline void mips_cm_lock_other(unsigned int core) { }
static inline void mips_cm_unlock_other(void) { }
#endif /* !CONFIG_MIPS_CM */
#endif /* __MIPS_ASM_MIPS_CM_H__ */

3
arch/mips/include/asm/mips-cpc.h
View File

@ -149,7 +149,8 @@ BUILD_CPC_Cx_RW(other, 0x10)
* core: the other core to be accessed
*
* Call before operating upon a core via the 'other' register region in
* order to prevent the region being moved during access. Must be followed
* order to prevent the region being moved during access. Must be called
* within the bounds of a mips_cm_{lock,unlock}_other pair, and followed
* by a call to mips_cpc_unlock_other.
*/
extern void mips_cpc_lock_other(unsigned int core);

18
arch/mips/include/asm/mipsregs.h
View File

@ -50,7 +50,9 @@
#define CP0_PAGEMASK $5
#define CP0_WIRED $6
#define CP0_INFO $7
#define CP0_HWRENA $7, 0
#define CP0_BADVADDR $8
#define CP0_BADINSTR $8, 1
#define CP0_COUNT $9
#define CP0_ENTRYHI $10
#define CP0_COMPARE $11
@ -58,7 +60,11 @@
#define CP0_CAUSE $13
#define CP0_EPC $14
#define CP0_PRID $15
#define CP0_EBASE $15, 1
#define CP0_CMGCRBASE $15, 3
#define CP0_CONFIG $16
#define CP0_CONFIG3 $16, 3
#define CP0_CONFIG5 $16, 5
#define CP0_LLADDR $17
#define CP0_WATCHLO $18
#define CP0_WATCHHI $19
@ -126,15 +132,9 @@
#define R3K_ENTRYLO_N (_ULCAST_(1) << 11)
/* MIPS32/64 EntryLo bit definitions */
#ifdef CONFIG_64BIT
/* as read by dmfc0 */
#define MIPS_ENTRYLO_XI (_ULCAST_(1) << 62)
#define MIPS_ENTRYLO_RI (_ULCAST_(1) << 63)
#else
/* as read by mfc0 */
#define MIPS_ENTRYLO_XI (_ULCAST_(1) << 30)
#define MIPS_ENTRYLO_RI (_ULCAST_(1) << 31)
#endif
#define MIPS_ENTRYLO_PFN_SHIFT 6
#define MIPS_ENTRYLO_XI (_ULCAST_(1) << (BITS_PER_LONG - 2))
#define MIPS_ENTRYLO_RI (_ULCAST_(1) << (BITS_PER_LONG - 1))
/*
* Values for PageMask register

2
arch/mips/include/asm/page.h
View File

@ -33,7 +33,7 @@
#define PAGE_SHIFT 16
#endif
#define PAGE_SIZE (_AC(1,UL) << PAGE_SHIFT)
#define PAGE_MASK (~((1 << PAGE_SHIFT) - 1))
#define PAGE_MASK (~(PAGE_SIZE - 1))
/*
* This is used for calculating the real page sizes

8
arch/mips/include/asm/processor.h
View File

@ -36,12 +36,6 @@ extern unsigned int vced_count, vcei_count;
*/
#define HAVE_ARCH_PICK_MMAP_LAYOUT 1
/*
* A special page (the vdso) is mapped into all processes at the very
* top of the virtual memory space.
*/
#define SPECIAL_PAGES_SIZE PAGE_SIZE
#ifdef CONFIG_32BIT
#ifdef CONFIG_KVM_GUEST
/* User space process size is limited to 1GB in KVM Guest Mode */
@ -80,7 +74,7 @@ extern unsigned int vced_count, vcei_count;
#endif
#define STACK_TOP ((TASK_SIZE & PAGE_MASK) - SPECIAL_PAGES_SIZE)
#define STACK_TOP (TASK_SIZE & PAGE_MASK)
/*
* This decides where the kernel will search for a free chunk of vm

139
arch/mips/include/asm/vdso.h
View File

@ -1,29 +1,136 @@
/*
* This file is subject to the terms and conditions of the GNU General Public
* License. See the file "COPYING" in the main directory of this archive
* for more details.
* Copyright (C) 2015 Imagination Technologies
* Author: Alex Smith <alex.smith@imgtec.com>
*
* Copyright (C) 2009 Cavium Networks
* This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License as published by the
* Free Software Foundation; either version 2 of the License, or (at your
* option) any later version.
*/
#ifndef __ASM_VDSO_H
#define __ASM_VDSO_H
#include <linux/types.h>
#include <linux/mm_types.h>
#include <asm/barrier.h>
#ifdef CONFIG_32BIT
struct mips_vdso {
u32 signal_trampoline[2];
u32 rt_signal_trampoline[2];
/**
* struct mips_vdso_image - Details of a VDSO image.
* @data: Pointer to VDSO image data (page-aligned).
* @size: Size of the VDSO image data (page-aligned).
* @off_sigreturn: Offset of the sigreturn() trampoline.
* @off_rt_sigreturn: Offset of the rt_sigreturn() trampoline.
* @mapping: Special mapping structure.
*
* This structure contains details of a VDSO image, including the image data
* and offsets of certain symbols required by the kernel. It is generated as
* part of the VDSO build process, aside from the mapping page array, which is
* populated at runtime.
*/
struct mips_vdso_image {
void *data;
unsigned long size;
unsigned long off_sigreturn;
unsigned long off_rt_sigreturn;
struct vm_special_mapping mapping;
};
#else /* !CONFIG_32BIT */
struct mips_vdso {
u32 o32_signal_trampoline[2];
u32 o32_rt_signal_trampoline[2];
u32 rt_signal_trampoline[2];
u32 n32_rt_signal_trampoline[2];
/*
* The following structures are auto-generated as part of the build for each
* ABI by genvdso, see arch/mips/vdso/Makefile.
*/
extern struct mips_vdso_image vdso_image;
#ifdef CONFIG_MIPS32_O32
extern struct mips_vdso_image vdso_image_o32;
#endif
#ifdef CONFIG_MIPS32_N32
extern struct mips_vdso_image vdso_image_n32;
#endif
/**
* union mips_vdso_data - Data provided by the kernel for the VDSO.
* @xtime_sec: Current real time (seconds part).
* @xtime_nsec: Current real time (nanoseconds part, shifted).
* @wall_to_mono_sec: Wall-to-monotonic offset (seconds part).
* @wall_to_mono_nsec: Wall-to-monotonic offset (nanoseconds part).
* @seq_count: Counter to synchronise updates (odd = updating).
* @cs_shift: Clocksource shift value.
* @clock_mode: Clocksource to use for time functions.
* @cs_mult: Clocksource multiplier value.
* @cs_cycle_last: Clock cycle value at last update.
* @cs_mask: Clocksource mask value.
* @tz_minuteswest: Minutes west of Greenwich (from timezone).
* @tz_dsttime: Type of DST correction (from timezone).
*
* This structure contains data needed by functions within the VDSO. It is
* populated by the kernel and mapped read-only into user memory. The time
* fields are mirrors of internal data from the timekeeping infrastructure.
*
* Note: Care should be taken when modifying as the layout must remain the same
* for both 64- and 32-bit (for 32-bit userland on 64-bit kernel).
*/
union mips_vdso_data {
struct {
u64 xtime_sec;
u64 xtime_nsec;
u32 wall_to_mono_sec;
u32 wall_to_mono_nsec;
u32 seq_count;
u32 cs_shift;
u8 clock_mode;
u32 cs_mult;
u64 cs_cycle_last;
u64 cs_mask;
s32 tz_minuteswest;
s32 tz_dsttime;
};
u8 page[PAGE_SIZE];
};
#endif /* CONFIG_32BIT */
static inline u32 vdso_data_read_begin(const union mips_vdso_data *data)
{
u32 seq;
while (true) {
seq = ACCESS_ONCE(data->seq_count);
if (likely(!(seq & 1))) {
/* Paired with smp_wmb() in vdso_data_write_*(). */
smp_rmb();
return seq;
}
cpu_relax();
}
}
static inline bool vdso_data_read_retry(const union mips_vdso_data *data,
u32 start_seq)
{
/* Paired with smp_wmb() in vdso_data_write_*(). */
smp_rmb();
return unlikely(data->seq_count != start_seq);
}
static inline void vdso_data_write_begin(union mips_vdso_data *data)
{
++data->seq_count;
/* Ensure sequence update is written before other data page values. */
smp_wmb();
}
static inline void vdso_data_write_end(union mips_vdso_data *data)
{
/* Ensure data values are written before updating sequence again. */
smp_wmb();
++data->seq_count;
}
#endif /* __ASM_VDSO_H */

2
arch/mips/include/uapi/asm/Kbuild
View File

@ -1,9 +1,9 @@
# UAPI Header export list
include include/uapi/asm-generic/Kbuild.asm
generic-y += auxvec.h
generic-y += ipcbuf.h
header-y += auxvec.h
header-y += bitfield.h
header-y += bitsperlong.h
header-y += break.h

17
arch/mips/include/uapi/asm/auxvec.h Normal file
View File

@ -0,0 +1,17 @@
/*
* Copyright (C) 2015 Imagination Technologies
* Author: Alex Smith <alex.smith@imgtec.com>
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License as published by the
* Free Software Foundation; either version 2 of the License, or (at your
* option) any later version.
*/
#ifndef __ASM_AUXVEC_H
#define __ASM_AUXVEC_H
/* Location of VDSO image. */
#define AT_SYSINFO_EHDR 33
#endif /* __ASM_AUXVEC_H */

13
arch/mips/jz4740/board-qi_lb60.c
View File

@ -25,6 +25,7 @@
#include <linux/power_supply.h>
#include <linux/power/jz4740-battery.h>
#include <linux/power/gpio-charger.h>
#include <linux/pwm.h>
#include <asm/mach-jz4740/gpio.h>
#include <asm/mach-jz4740/jz4740_fb.h>
@ -34,8 +35,6 @@
#include <linux/regulator/fixed.h>
#include <linux/regulator/machine.h>
#include <linux/leds_pwm.h>
#include <asm/mach-jz4740/platform.h>
#include "clock.h"
@ -399,13 +398,15 @@ static struct platform_device avt2_usb_regulator_device = {
}
};
static struct pwm_lookup qi_lb60_pwm_lookup[] = {
PWM_LOOKUP("jz4740-pwm", 4, "pwm-beeper", NULL, 0,
PWM_POLARITY_NORMAL),
};
/* beeper */
static struct platform_device qi_lb60_pwm_beeper = {
.name = "pwm-beeper",
.id = -1,
.dev = {
.platform_data = (void *)4,
},
};
/* charger */
@ -491,6 +492,8 @@ static int __init qi_lb60_init_platform_devices(void)
platform_device_register(&jz4740_usb_ohci_device);
}
pwm_add_table(qi_lb60_pwm_lookup, ARRAY_SIZE(qi_lb60_pwm_lookup));
return platform_add_devices(jz_platform_devices,
ARRAY_SIZE(jz_platform_devices));

1
arch/mips/kernel/Makefile
View File

@ -51,6 +51,7 @@ obj-$(CONFIG_MIPS_MT_FPAFF) += mips-mt-fpaff.o
obj-$(CONFIG_MIPS_MT_SMP) += smp-mt.o
obj-$(CONFIG_MIPS_CMP) += smp-cmp.o
obj-$(CONFIG_MIPS_CPS) += smp-cps.o cps-vec.o
obj-$(CONFIG_MIPS_CPS_NS16550) += cps-vec-ns16550.o
obj-$(CONFIG_MIPS_GIC_IPI) += smp-gic.o
obj-$(CONFIG_MIPS_SPRAM) += spram.o

202
arch/mips/kernel/cps-vec-ns16550.S Normal file
View File

@ -0,0 +1,202 @@
/*
* Copyright (C) 2015 Imagination Technologies
* Author: Paul Burton <paul.burton@imgtec.com>
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License as published by the
* Free Software Foundation; either version 2 of the License, or (at your
* option) any later version.
*/
#include <asm/addrspace.h>
#include <asm/asm.h>
#include <asm/asm-offsets.h>
#include <asm/mipsregs.h>
#include <asm/regdef.h>
#include <linux/serial_reg.h>
#define UART_TX_OFS (UART_TX << CONFIG_MIPS_CPS_NS16550_SHIFT)
#define UART_LSR_OFS (UART_LSR << CONFIG_MIPS_CPS_NS16550_SHIFT)
/**
* _mips_cps_putc() - write a character to the UART
* @a0: ASCII character to write
* @t9: UART base address
*/
LEAF(_mips_cps_putc)
1: lw t0, UART_LSR_OFS(t9)
andi t0, t0, UART_LSR_TEMT
beqz t0, 1b
sb a0, UART_TX_OFS(t9)
jr ra
END(_mips_cps_putc)
/**
* _mips_cps_puts() - write a string to the UART
* @a0: pointer to NULL-terminated ASCII string
* @t9: UART base address
*
* Write a null-terminated ASCII string to the UART.
*/
NESTED(_mips_cps_puts, 0, ra)
move s7, ra
move s6, a0
1: lb a0, 0(s6)
beqz a0, 2f
jal _mips_cps_putc
PTR_ADDIU s6, s6, 1
b 1b
2: jr s7
END(_mips_cps_puts)
/**
* _mips_cps_putx4 - write a 4b hex value to the UART
* @a0: the 4b value to write to the UART
* @t9: UART base address
*
* Write a single hexadecimal character to the UART.
*/
NESTED(_mips_cps_putx4, 0, ra)
andi a0, a0, 0xf
li t0, '0'
blt a0, 10, 1f
li t0, 'a'
addiu a0, a0, -10
1: addu a0, a0, t0
b _mips_cps_putc
END(_mips_cps_putx4)
/**
* _mips_cps_putx8 - write an 8b hex value to the UART
* @a0: the 8b value to write to the UART
* @t9: UART base address
*
* Write an 8 bit value (ie. 2 hexadecimal characters) to the UART.
*/
NESTED(_mips_cps_putx8, 0, ra)
move s3, ra
move s2, a0
srl a0, a0, 4
jal _mips_cps_putx4
move a0, s2
move ra, s3
b _mips_cps_putx4
END(_mips_cps_putx8)
/**
* _mips_cps_putx16 - write a 16b hex value to the UART
* @a0: the 16b value to write to the UART
* @t9: UART base address
*
* Write a 16 bit value (ie. 4 hexadecimal characters) to the UART.
*/
NESTED(_mips_cps_putx16, 0, ra)
move s5, ra
move s4, a0
srl a0, a0, 8
jal _mips_cps_putx8
move a0, s4
move ra, s5
b _mips_cps_putx8
END(_mips_cps_putx16)
/**
* _mips_cps_putx32 - write a 32b hex value to the UART
* @a0: the 32b value to write to the UART
* @t9: UART base address
*
* Write a 32 bit value (ie. 8 hexadecimal characters) to the UART.
*/
NESTED(_mips_cps_putx32, 0, ra)
move s7, ra
move s6, a0
srl a0, a0, 16
jal _mips_cps_putx16
move a0, s6
move ra, s7
b _mips_cps_putx16
END(_mips_cps_putx32)
#ifdef CONFIG_64BIT
/**
* _mips_cps_putx64 - write a 64b hex value to the UART
* @a0: the 64b value to write to the UART
* @t9: UART base address
*
* Write a 64 bit value (ie. 16 hexadecimal characters) to the UART.
*/
NESTED(_mips_cps_putx64, 0, ra)
move sp, ra
move s8, a0
dsrl32 a0, a0, 0
jal _mips_cps_putx32
move a0, s8
move ra, sp
b _mips_cps_putx32
END(_mips_cps_putx64)
#define _mips_cps_putxlong _mips_cps_putx64
#else /* !CONFIG_64BIT */
#define _mips_cps_putxlong _mips_cps_putx32
#endif /* !CONFIG_64BIT */
/**
* mips_cps_bev_dump() - dump relevant exception state to UART
* @a0: pointer to NULL-terminated ASCII string naming the exception
*
* Write information that may be useful in debugging an exception to the
* UART configured by CONFIG_MIPS_CPS_NS16550_*. As this BEV exception
* will only be run if something goes horribly wrong very early during
* the bringup of a core and it is very likely to be unsafe to perform
* memory accesses at that point (cache state indeterminate, EVA may not
* be configured, coherence may be disabled) let alone have a stack,
* this is all written in assembly using only registers & unmapped
* uncached access to the UART registers.
*/
LEAF(mips_cps_bev_dump)
move s0, ra
move s1, a0
li t9, CKSEG1ADDR(CONFIG_MIPS_CPS_NS16550_BASE)
PTR_LA a0, str_newline
jal _mips_cps_puts
PTR_LA a0, str_bev
jal _mips_cps_puts
move a0, s1
jal _mips_cps_puts
PTR_LA a0, str_newline
jal _mips_cps_puts
PTR_LA a0, str_newline
jal _mips_cps_puts
#define DUMP_COP0_REG(reg, name, sz, _mfc0) \
PTR_LA a0, 8f; \
jal _mips_cps_puts; \
_mfc0 a0, reg; \
jal _mips_cps_putx##sz; \
PTR_LA a0, str_newline; \
jal _mips_cps_puts; \
TEXT(name)
DUMP_COP0_REG(CP0_CAUSE, "Cause: 0x", 32, mfc0)
DUMP_COP0_REG(CP0_STATUS, "Status: 0x", 32, mfc0)
DUMP_COP0_REG(CP0_EBASE, "EBase: 0x", long, MFC0)
DUMP_COP0_REG(CP0_BADVADDR, "BadVAddr: 0x", long, MFC0)
DUMP_COP0_REG(CP0_BADINSTR, "BadInstr: 0x", 32, mfc0)
PTR_LA a0, str_newline
jal _mips_cps_puts
jr s0
END(mips_cps_bev_dump)
.pushsection .data
str_bev: .asciiz "BEV Exception: "
str_newline: .asciiz "\r\n"
.popsection

44
arch/mips/kernel/cps-vec.S
View File

@ -25,14 +25,32 @@
.set noreorder
#ifdef CONFIG_64BIT
# define STATUS_BITDEPS ST0_KX
#else
# define STATUS_BITDEPS 0
#endif
#ifdef CONFIG_MIPS_CPS_NS16550
#define DUMP_EXCEP(name) \
PTR_LA a0, 8f; \
jal mips_cps_bev_dump; \
nop; \
TEXT(name)
#else /* !CONFIG_MIPS_CPS_NS16550 */
#define DUMP_EXCEP(name)
#endif /* !CONFIG_MIPS_CPS_NS16550 */
/*
* Set dest to non-zero if the core supports the MT ASE, else zero. If
* MT is not supported then branch to nomt.
*/
.macro has_mt dest, nomt
mfc0 \dest, CP0_CONFIG
bgez \dest, \nomt
mfc0 \dest, CP0_CONFIG, 1
mfc0 \dest, CP0_CONFIG, 1
bgez \dest, \nomt
mfc0 \dest, CP0_CONFIG, 2
bgez \dest, \nomt
@ -47,11 +65,9 @@
LEAF(mips_cps_core_entry)
/*
* These first 12 bytes will be patched by cps_smp_setup to load the
* base address of the CM GCRs into register v1 and the CCA to use into
* register s0.
* These first 4 bytes will be patched by cps_smp_setup to load the
* CCA to use into register s0.
*/
.quad 0
.word 0
/* Check whether we're here due to an NMI */
@ -71,7 +87,7 @@ not_nmi:
mtc0 t0, CP0_CAUSE
/* Setup Status */
li t0, ST0_CU1 | ST0_CU0
li t0, ST0_CU1 | ST0_CU0 | ST0_BEV | STATUS_BITDEPS
mtc0 t0, CP0_STATUS
/*
@ -151,6 +167,12 @@ dcache_done:
mtc0 t0, CP0_CONFIG
ehb
/* Calculate an uncached address for the CM GCRs */
MFC0 v1, CP0_CMGCRBASE
PTR_SLL v1, v1, 4
PTR_LI t0, UNCAC_BASE
PTR_ADDU v1, v1, t0
/* Enter the coherent domain */
li t0, 0xff
sw t0, GCR_CL_COHERENCE_OFS(v1)
@ -188,36 +210,42 @@ dcache_done:
.org 0x200
LEAF(excep_tlbfill)
DUMP_EXCEP("TLB Fill")
b .
nop
END(excep_tlbfill)
.org 0x280
LEAF(excep_xtlbfill)
DUMP_EXCEP("XTLB Fill")
b .
nop
END(excep_xtlbfill)
.org 0x300
LEAF(excep_cache)
DUMP_EXCEP("Cache")
b .
nop
END(excep_cache)
.org 0x380
LEAF(excep_genex)
DUMP_EXCEP("General")
b .
nop
END(excep_genex)
.org 0x400
LEAF(excep_intex)
DUMP_EXCEP("Interrupt")
b .
nop
END(excep_intex)
.org 0x480
LEAF(excep_ejtag)
DUMP_EXCEP("EJTAG")
PTR_LA k0, ejtag_debug_handler
jr k0
nop

3
arch/mips/kernel/cpu-probe.c
View File

@ -536,8 +536,7 @@ static inline unsigned int decode_config3(struct cpuinfo_mips *c)
c->options |= MIPS_CPU_SEGMENTS;
if (config3 & MIPS_CONF3_MSA)
c->ases |= MIPS_ASE_MSA;
/* Only tested on 32-bit cores */
if ((config3 & MIPS_CONF3_PW) && config_enabled(CONFIG_32BIT)) {
if (config3 & MIPS_CONF3_PW) {
c->htw_seq = 0;
c->options |= MIPS_CPU_HTW;
}

44
arch/mips/kernel/csrc-r4k.c
View File

@ -28,6 +28,43 @@ static u64 notrace r4k_read_sched_clock(void)
return read_c0_count();
}
static inline unsigned int rdhwr_count(void)
{
unsigned int count;
__asm__ __volatile__(
" .set push\n"
" .set mips32r2\n"
" rdhwr %0, $2\n"
" .set pop\n"
: "=r" (count));
return count;
}
static bool rdhwr_count_usable(void)
{
unsigned int prev, curr, i;
/*
* Older QEMUs have a broken implementation of RDHWR for the CP0 count
* which always returns a constant value. Try to identify this and don't
* use it in the VDSO if it is broken. This workaround can be removed
* once the fix has been in QEMU stable for a reasonable amount of time.
*/
for (i = 0, prev = rdhwr_count(); i < 100; i++) {
curr = rdhwr_count();
if (curr != prev)
return true;
prev = curr;
}
pr_warn("Not using R4K clocksource in VDSO due to broken RDHWR\n");
return false;
}
int __init init_r4k_clocksource(void)
{
if (!cpu_has_counter || !mips_hpt_frequency)
@ -36,6 +73,13 @@ int __init init_r4k_clocksource(void)
/* Calculate a somewhat reasonable rating value */
clocksource_mips.rating = 200 + mips_hpt_frequency / 10000000;
/*
* R2 onwards makes the count accessible to user mode so it can be used
* by the VDSO (HWREna is configured by configure_hwrena()).
*/
if (cpu_has_mips_r2_r6 && rdhwr_count_usable())
clocksource_mips.archdata.vdso_clock_mode = VDSO_CLOCK_R4K;
clocksource_register_hz(&clocksource_mips, mips_hpt_frequency);
sched_clock_register(r4k_read_sched_clock, 32, mips_hpt_frequency);

17
arch/mips/kernel/idle.c
View File

@ -134,6 +134,16 @@ void __init check_wait(void)
return;
}
/*
* MIPSr6 specifies that masked interrupts should unblock an executing
* wait instruction, and thus that it is safe for us to use
* r4k_wait_irqoff. Yippee!
*/
if (cpu_has_mips_r6) {
cpu_wait = r4k_wait_irqoff;
return;
}
switch (current_cpu_type()) {
case CPU_R3081:
case CPU_R3081E:
@ -155,12 +165,12 @@ void __init check_wait(void)
case CPU_4KEC:
case CPU_4KSC:
case CPU_5KC:
case CPU_5KE:
case CPU_25KF:
case CPU_PR4450:
case CPU_BMIPS3300:
case CPU_BMIPS4350:
case CPU_BMIPS4380:
case CPU_BMIPS5000:
case CPU_CAVIUM_OCTEON:
case CPU_CAVIUM_OCTEON_PLUS:
case CPU_CAVIUM_OCTEON2:
@ -171,7 +181,9 @@ void __init check_wait(void)
case CPU_XLP:
cpu_wait = r4k_wait;
break;
case CPU_BMIPS5000:
cpu_wait = r4k_wait_irqoff;
break;
case CPU_RM7000:
cpu_wait = rm7k_wait_irqoff;
break;
@ -196,7 +208,6 @@ void __init check_wait(void)
case CPU_INTERAPTIV:
case CPU_M5150:
case CPU_QEMU_GENERIC:
case CPU_I6400:
cpu_wait = r4k_wait;
if (read_c0_config7() & MIPS_CONF7_WII)
cpu_wait = r4k_wait_irqoff;

116
arch/mips/kernel/mips-cm.c
View File

@ -9,6 +9,8 @@
*/
#include <linux/errno.h>
#include <linux/percpu.h>
#include <linux/spinlock.h>
#include <asm/mips-cm.h>
#include <asm/mipsregs.h>
@ -136,6 +138,9 @@ static char *cm3_causes[32] = {
"0x19", "0x1a", "0x1b", "0x1c", "0x1d", "0x1e", "0x1f"
};
static DEFINE_PER_CPU_ALIGNED(spinlock_t, cm_core_lock);
static DEFINE_PER_CPU_ALIGNED(unsigned long, cm_core_lock_flags);
phys_addr_t __mips_cm_phys_base(void)
{
u32 config3 = read_c0_config3();
@ -200,6 +205,7 @@ int mips_cm_probe(void)
{
phys_addr_t addr;
u32 base_reg;
unsigned cpu;
/*
* No need to probe again if we have already been
@ -247,38 +253,70 @@ int mips_cm_probe(void)
/* determine register width for this CM */
mips_cm_is64 = config_enabled(CONFIG_64BIT) && (mips_cm_revision() >= CM_REV_CM3);
for_each_possible_cpu(cpu)
spin_lock_init(&per_cpu(cm_core_lock, cpu));
return 0;
}
void mips_cm_lock_other(unsigned int core, unsigned int vp)
{
unsigned curr_core;
u32 val;
preempt_disable();
curr_core = current_cpu_data.core;
spin_lock_irqsave(&per_cpu(cm_core_lock, curr_core),
per_cpu(cm_core_lock_flags, curr_core));
if (mips_cm_revision() >= CM_REV_CM3) {
val = core << CM3_GCR_Cx_OTHER_CORE_SHF;
val |= vp << CM3_GCR_Cx_OTHER_VP_SHF;
} else {
BUG_ON(vp != 0);
val = core << CM_GCR_Cx_OTHER_CORENUM_SHF;
}
write_gcr_cl_other(val);
/*
* Ensure the core-other region reflects the appropriate core &
* VP before any accesses to it occur.
*/
mb();
}
void mips_cm_unlock_other(void)
{
unsigned curr_core = current_cpu_data.core;
spin_unlock_irqrestore(&per_cpu(cm_core_lock, curr_core),
per_cpu(cm_core_lock_flags, curr_core));
preempt_enable();
}
void mips_cm_error_report(void)
{
unsigned long revision = mips_cm_revision();
/*
* CM3 has a 64-bit Error cause register with 0:57 containing the error
* info and 63:58 the error type. For old CMs, everything is contained
* in a single 32-bit register (0:26 and 31:27 respectively). Even
* though the cm_error is u64, we will simply ignore the upper word
* for CM2.
*/
u64 cm_error = read_gcr_error_cause();
int cm_error_cause_sft = CM_GCR_ERROR_CAUSE_ERRTYPE_SHF +
((revision >= CM_REV_CM3) ? 31 : 0);
unsigned long cm_addr = read_gcr_error_addr();
unsigned long cm_other = read_gcr_error_mult();
u64 cm_error, cm_addr, cm_other;
unsigned long revision;
int ocause, cause;
char buf[256];
if (!mips_cm_present())
return;
cause = cm_error >> cm_error_cause_sft;
revision = mips_cm_revision();
if (!cause)
/* All good */
return;
ocause = cm_other >> CM_GCR_ERROR_MULT_ERR2ND_SHF;
if (revision < CM_REV_CM3) { /* CM2 */
cm_error = read_gcr_error_cause();
cm_addr = read_gcr_error_addr();
cm_other = read_gcr_error_mult();
cause = cm_error >> CM_GCR_ERROR_CAUSE_ERRTYPE_SHF;
ocause = cm_other >> CM_GCR_ERROR_MULT_ERR2ND_SHF;
if (!cause)
return;
if (cause < 16) {
unsigned long cca_bits = (cm_error >> 15) & 7;
unsigned long tr_bits = (cm_error >> 12) & 7;
@ -310,18 +348,30 @@ void mips_cm_error_report(void)
}
pr_err("CM_ERROR=%08llx %s <%s>\n", cm_error,
cm2_causes[cause], buf);
pr_err("CM_ADDR =%08lx\n", cm_addr);
pr_err("CM_OTHER=%08lx %s\n", cm_other, cm2_causes[ocause]);
pr_err("CM_ADDR =%08llx\n", cm_addr);
pr_err("CM_OTHER=%08llx %s\n", cm_other, cm2_causes[ocause]);
} else { /* CM3 */
/* Used by cause == {1,2,3} */
unsigned long core_id_bits = (cm_error >> 22) & 0xf;
unsigned long vp_id_bits = (cm_error >> 18) & 0xf;
unsigned long cmd_bits = (cm_error >> 14) & 0xf;
unsigned long cmd_group_bits = (cm_error >> 11) & 0xf;
unsigned long cm3_cca_bits = (cm_error >> 8) & 7;
unsigned long mcp_bits = (cm_error >> 5) & 0xf;
unsigned long cm3_tr_bits = (cm_error >> 1) & 0xf;
unsigned long sched_bit = cm_error & 0x1;
ulong core_id_bits, vp_id_bits, cmd_bits, cmd_group_bits;
ulong cm3_cca_bits, mcp_bits, cm3_tr_bits, sched_bit;
cm_error = read64_gcr_error_cause();
cm_addr = read64_gcr_error_addr();
cm_other = read64_gcr_error_mult();
cause = cm_error >> CM3_GCR_ERROR_CAUSE_ERRTYPE_SHF;
ocause = cm_other >> CM_GCR_ERROR_MULT_ERR2ND_SHF;
if (!cause)
return;
/* Used by cause == {1,2,3} */
core_id_bits = (cm_error >> 22) & 0xf;
vp_id_bits = (cm_error >> 18) & 0xf;
cmd_bits = (cm_error >> 14) & 0xf;
cmd_group_bits = (cm_error >> 11) & 0xf;
cm3_cca_bits = (cm_error >> 8) & 7;
mcp_bits = (cm_error >> 5) & 0xf;
cm3_tr_bits = (cm_error >> 1) & 0xf;
sched_bit = cm_error & 0x1;
if (cause == 1 || cause == 3) { /* Tag ECC */
unsigned long tag_ecc = (cm_error >> 57) & 0x1;
@ -363,12 +413,14 @@ void mips_cm_error_report(void)
cm3_cmd_group[cmd_group_bits],
cm3_cca_bits, 1 << mcp_bits,
cm3_tr[cm3_tr_bits], sched_bit);
} else {
buf[0] = 0;
}
pr_err("CM_ERROR=%llx %s <%s>\n", cm_error,
cm3_causes[cause], buf);
pr_err("CM_ADDR =%lx\n", cm_addr);
pr_err("CM_OTHER=%lx %s\n", cm_other, cm3_causes[ocause]);
pr_err("CM_ADDR =%llx\n", cm_addr);
pr_err("CM_OTHER=%llx %s\n", cm_other, cm3_causes[ocause]);
}
/* reprime cause register */

6
arch/mips/kernel/mips-cpc.c
View File

@ -76,6 +76,12 @@ void mips_cpc_lock_other(unsigned int core)
spin_lock_irqsave(&per_cpu(cpc_core_lock, curr_core),
per_cpu(cpc_core_lock_flags, curr_core));
write_cpc_cl_other(core << CPC_Cx_OTHER_CORENUM_SHF);
/*
* Ensure the core-other region reflects the appropriate core &
* VP before any accesses to it occur.
*/
mb();
}
void mips_cpc_unlock_other(void)

2
arch/mips/kernel/mips-r2-to-r6-emul.c
View File

@ -22,6 +22,7 @@
#include <asm/asm.h>
#include <asm/branch.h>
#include <asm/break.h>
#include <asm/debug.h>
#include <asm/fpu.h>
#include <asm/fpu_emulator.h>
#include <asm/inst.h>
@ -2363,7 +2364,6 @@ static const struct file_operations mipsr2_clear_fops = {
static int __init mipsr2_init_debugfs(void)
{
extern struct dentry *mips_debugfs_dir;
struct dentry *mipsr2_emul;
if (!mips_debugfs_dir)

2
arch/mips/kernel/segment.c
View File

@ -10,6 +10,7 @@
#include <linux/debugfs.h>
#include <linux/seq_file.h>
#include <asm/cpu.h>
#include <asm/debug.h>
#include <asm/mipsregs.h>
static void build_segment_config(char *str, unsigned int cfg)
@ -91,7 +92,6 @@ static const struct file_operations segments_fops = {
static int __init segments_info(void)
{
extern struct dentry *mips_debugfs_dir;
struct dentry *segments;
if (cpu_has_segments) {

31
arch/mips/kernel/setup.c
View File

@ -33,11 +33,16 @@
#include <asm/cache.h>
#include <asm/cdmm.h>
#include <asm/cpu.h>
#include <asm/debug.h>
#include <asm/sections.h>
#include <asm/setup.h>
#include <asm/smp-ops.h>
#include <asm/prom.h>
#ifdef CONFIG_MIPS_ELF_APPENDED_DTB
const char __section(.appended_dtb) __appended_dtb[0x100000];
#endif /* CONFIG_MIPS_ELF_APPENDED_DTB */
struct cpuinfo_mips cpu_data[NR_CPUS] __read_mostly;
EXPORT_SYMBOL(cpu_data);
@ -616,6 +621,10 @@ static void __init request_crashkernel(struct resource *res)
}
#endif /* !defined(CONFIG_KEXEC) */
#define USE_PROM_CMDLINE IS_ENABLED(CONFIG_MIPS_CMDLINE_FROM_BOOTLOADER)
#define USE_DTB_CMDLINE IS_ENABLED(CONFIG_MIPS_CMDLINE_FROM_DTB)
#define EXTEND_WITH_PROM IS_ENABLED(CONFIG_MIPS_CMDLINE_EXTEND)
static void __init arch_mem_init(char **cmdline_p)
{
struct memblock_region *reg;
@ -640,18 +649,24 @@ static void __init arch_mem_init(char **cmdline_p)
pr_info("Determined physical RAM map:\n");
print_memory_map();
#ifdef CONFIG_CMDLINE_BOOL
#ifdef CONFIG_CMDLINE_OVERRIDE
#if defined(CONFIG_CMDLINE_BOOL) && defined(CONFIG_CMDLINE_OVERRIDE)
strlcpy(boot_command_line, builtin_cmdline, COMMAND_LINE_SIZE);
#else
if (builtin_cmdline[0]) {
strlcat(arcs_cmdline, " ", COMMAND_LINE_SIZE);
strlcat(arcs_cmdline, builtin_cmdline, COMMAND_LINE_SIZE);
if ((USE_PROM_CMDLINE && arcs_cmdline[0]) ||
(USE_DTB_CMDLINE && !boot_command_line[0]))
strlcpy(boot_command_line, arcs_cmdline, COMMAND_LINE_SIZE);
if (EXTEND_WITH_PROM && arcs_cmdline[0]) {
strlcat(boot_command_line, " ", COMMAND_LINE_SIZE);
strlcat(boot_command_line, arcs_cmdline, COMMAND_LINE_SIZE);
}
#if defined(CONFIG_CMDLINE_BOOL)
if (builtin_cmdline[0]) {
strlcat(boot_command_line, " ", COMMAND_LINE_SIZE);
strlcat(boot_command_line, builtin_cmdline, COMMAND_LINE_SIZE);
}
strlcpy(boot_command_line, arcs_cmdline, COMMAND_LINE_SIZE);
#endif
#else
strlcpy(boot_command_line, arcs_cmdline, COMMAND_LINE_SIZE);
#endif
strlcpy(command_line, boot_command_line, COMMAND_LINE_SIZE);

12
arch/mips/kernel/signal.c
View File

@ -36,7 +36,6 @@
#include <asm/ucontext.h>
#include <asm/cpu-features.h>
#include <asm/war.h>
#include <asm/vdso.h>
#include <asm/dsp.h>
#include <asm/inst.h>
#include <asm/msa.h>
@ -752,16 +751,15 @@ static int setup_rt_frame(void *sig_return, struct ksignal *ksig,
struct mips_abi mips_abi = {
#ifdef CONFIG_TRAD_SIGNALS
.setup_frame = setup_frame,
.signal_return_offset = offsetof(struct mips_vdso, signal_trampoline),
#endif
.setup_rt_frame = setup_rt_frame,
.rt_signal_return_offset =
offsetof(struct mips_vdso, rt_signal_trampoline),
.restart = __NR_restart_syscall,
.off_sc_fpregs = offsetof(struct sigcontext, sc_fpregs),
.off_sc_fpc_csr = offsetof(struct sigcontext, sc_fpc_csr),
.off_sc_used_math = offsetof(struct sigcontext, sc_used_math),
.vdso = &vdso_image,
};
static void handle_signal(struct ksignal *ksig, struct pt_regs *regs)
@ -801,11 +799,11 @@ static void handle_signal(struct ksignal *ksig, struct pt_regs *regs)
}
if (sig_uses_siginfo(&ksig->ka))
ret = abi->setup_rt_frame(vdso + abi->rt_signal_return_offset,
ret = abi->setup_rt_frame(vdso + abi->vdso->off_rt_sigreturn,
ksig, regs, oldset);
else
ret = abi->setup_frame(vdso + abi->signal_return_offset, ksig,
regs, oldset);
ret = abi->setup_frame(vdso + abi->vdso->off_sigreturn,
ksig, regs, oldset);
signal_setup_done(ret, ksig, 0);
}

7
arch/mips/kernel/signal32.c
View File

@ -31,7 +31,6 @@
#include <asm/ucontext.h>
#include <asm/fpu.h>
#include <asm/war.h>
#include <asm/vdso.h>
#include <asm/dsp.h>
#include "signal-common.h"
@ -406,14 +405,12 @@ static int setup_rt_frame_32(void *sig_return, struct ksignal *ksig,
*/
struct mips_abi mips_abi_32 = {
.setup_frame = setup_frame_32,
.signal_return_offset =
offsetof(struct mips_vdso, o32_signal_trampoline),
.setup_rt_frame = setup_rt_frame_32,
.rt_signal_return_offset =
offsetof(struct mips_vdso, o32_rt_signal_trampoline),
.restart = __NR_O32_restart_syscall,
.off_sc_fpregs = offsetof(struct sigcontext32, sc_fpregs),
.off_sc_fpc_csr = offsetof(struct sigcontext32, sc_fpc_csr),
.off_sc_used_math = offsetof(struct sigcontext32, sc_used_math),
.vdso = &vdso_image_o32,
};

5
arch/mips/kernel/signal_n32.c
View File

@ -38,7 +38,6 @@
#include <asm/fpu.h>
#include <asm/cpu-features.h>
#include <asm/war.h>
#include <asm/vdso.h>
#include "signal-common.h"
@ -151,11 +150,11 @@ static int setup_rt_frame_n32(void *sig_return, struct ksignal *ksig,
struct mips_abi mips_abi_n32 = {
.setup_rt_frame = setup_rt_frame_n32,
.rt_signal_return_offset =
offsetof(struct mips_vdso, n32_rt_signal_trampoline),
.restart = __NR_N32_restart_syscall,
.off_sc_fpregs = offsetof(struct sigcontext, sc_fpregs),
.off_sc_fpc_csr = offsetof(struct sigcontext, sc_fpc_csr),
.off_sc_used_math = offsetof(struct sigcontext, sc_used_math),
.vdso = &vdso_image_n32,
};

35
arch/mips/kernel/smp-cps.c
View File

@ -8,6 +8,7 @@
* option) any later version.
*/
#include <linux/delay.h>
#include <linux/io.h>
#include <linux/irqchip/mips-gic.h>
#include <linux/sched.h>
@ -37,8 +38,9 @@ static unsigned core_vpe_count(unsigned core)
if (!config_enabled(CONFIG_MIPS_MT_SMP) || !cpu_has_mipsmt)
return 1;
write_gcr_cl_other(core << CM_GCR_Cx_OTHER_CORENUM_SHF);
mips_cm_lock_other(core, 0);
cfg = read_gcr_co_config() & CM_GCR_Cx_CONFIG_PVPE_MSK;
mips_cm_unlock_other();
return (cfg >> CM_GCR_Cx_CONFIG_PVPE_SHF) + 1;
}
@ -133,11 +135,9 @@ static void __init cps_prepare_cpus(unsigned int max_cpus)
/*
* Patch the start of mips_cps_core_entry to provide:
*
* v1 = CM base address
* s0 = kseg0 CCA
*/
entry_code = (u32 *)&mips_cps_core_entry;
UASM_i_LA(&entry_code, 3, (long)mips_cm_base);
uasm_i_addiu(&entry_code, 16, 0, cca);
blast_dcache_range((unsigned long)&mips_cps_core_entry,
(unsigned long)entry_code);
@ -190,10 +190,11 @@ err_out:
static void boot_core(unsigned core)
{
u32 access;
u32 access, stat, seq_state;
unsigned timeout;
/* Select the appropriate core */
write_gcr_cl_other(core << CM_GCR_Cx_OTHER_CORENUM_SHF);
mips_cm_lock_other(core, 0);
/* Set its reset vector */
write_gcr_co_reset_base(CKSEG1ADDR((unsigned long)mips_cps_core_entry));
@ -210,12 +211,36 @@ static void boot_core(unsigned core)
/* Reset the core */
mips_cpc_lock_other(core);
write_cpc_co_cmd(CPC_Cx_CMD_RESET);
timeout = 100;
while (true) {
stat = read_cpc_co_stat_conf();
seq_state = stat & CPC_Cx_STAT_CONF_SEQSTATE_MSK;
/* U6 == coherent execution, ie. the core is up */
if (seq_state == CPC_Cx_STAT_CONF_SEQSTATE_U6)
break;
/* Delay a little while before we start warning */
if (timeout) {
timeout--;
mdelay(10);
continue;
}
pr_warn("Waiting for core %u to start... STAT_CONF=0x%x\n",
core, stat);
mdelay(1000);
}
mips_cpc_unlock_other();
} else {
/* Take the core out of reset */
write_gcr_co_reset_release(0);
}
mips_cm_unlock_other();
/* The core is now powered up */
bitmap_set(core_power, core, 1);
}

2
arch/mips/kernel/smp-gic.c
View File

@ -46,9 +46,11 @@ void gic_send_ipi_single(int cpu, unsigned int action)
if (mips_cpc_present() && (core != current_cpu_data.core)) {
while (!cpumask_test_cpu(cpu, &cpu_coherent_mask)) {
mips_cm_lock_other(core, 0);
mips_cpc_lock_other(core);
write_cpc_co_cmd(CPC_Cx_CMD_PWRUP);
mips_cpc_unlock_other();
mips_cm_unlock_other();
}
}

4
arch/mips/kernel/spinlock_test.c
View File

@ -5,7 +5,7 @@
#include <linux/debugfs.h>
#include <linux/export.h>
#include <linux/spinlock.h>
#include <asm/debug.h>
static int ss_get(void *data, u64 *val)
{
@ -115,8 +115,6 @@ static int multi_get(void *data, u64 *val)
DEFINE_SIMPLE_ATTRIBUTE(fops_multi, multi_get, NULL, "%llu\n");
extern struct dentry *mips_debugfs_dir;
static int __init spinlock_test(void)
{
struct dentry *d;

27
arch/mips/kernel/stacktrace.c
View File

@ -12,14 +12,15 @@
* Save stack-backtrace addresses into a stack_trace buffer:
*/
static void save_raw_context_stack(struct stack_trace *trace,
unsigned long reg29)
unsigned long reg29, int savesched)
{
unsigned long *sp = (unsigned long *)reg29;
unsigned long addr;
while (!kstack_end(sp)) {
addr = *sp++;
if (__kernel_text_address(addr)) {
if (__kernel_text_address(addr) &&
(savesched || !in_sched_functions(addr))) {
if (trace->skip > 0)
trace->skip--;
else
@ -31,7 +32,7 @@ static void save_raw_context_stack(struct stack_trace *trace,
}
static void save_context_stack(struct stack_trace *trace,
struct task_struct *tsk, struct pt_regs *regs)
struct task_struct *tsk, struct pt_regs *regs, int savesched)
{
unsigned long sp = regs->regs[29];
#ifdef CONFIG_KALLSYMS
@ -43,20 +44,22 @@ static void save_context_stack(struct stack_trace *trace,
(unsigned long)task_stack_page(tsk);
if (stack_page && sp >= stack_page &&
sp <= stack_page + THREAD_SIZE - 32)
save_raw_context_stack(trace, sp);
save_raw_context_stack(trace, sp, savesched);
return;
}
do {
if (trace->skip > 0)
trace->skip--;
else
trace->entries[trace->nr_entries++] = pc;
if (trace->nr_entries >= trace->max_entries)
break;
if (savesched || !in_sched_functions(pc)) {
if (trace->skip > 0)
trace->skip--;
else
trace->entries[trace->nr_entries++] = pc;
if (trace->nr_entries >= trace->max_entries)
break;
}
pc = unwind_stack(tsk, &sp, pc, &ra);
} while (pc);
#else
save_raw_context_stack(trace, sp);
save_raw_context_stack(trace, sp, savesched);
#endif
}
@ -82,6 +85,6 @@ void save_stack_trace_tsk(struct task_struct *tsk, struct stack_trace *trace)
regs->cp0_epc = tsk->thread.reg31;
} else
prepare_frametrace(regs);
save_context_stack(trace, tsk, regs);
save_context_stack(trace, tsk, regs, tsk == current);
}
EXPORT_SYMBOL_GPL(save_stack_trace_tsk);

11
arch/mips/kernel/traps.c
View File

@ -37,6 +37,7 @@
#include <linux/irq.h>
#include <linux/perf_event.h>
#include <asm/addrspace.h>
#include <asm/bootinfo.h>
#include <asm/branch.h>
#include <asm/break.h>
@ -1856,12 +1857,14 @@ void __noreturn nmi_exception_handler(struct pt_regs *regs)
{
char str[100];
nmi_enter();
raw_notifier_call_chain(&nmi_chain, 0, regs);
bust_spinlocks(1);
snprintf(str, 100, "CPU%d NMI taken, CP0_EPC=%lx\n",
smp_processor_id(), regs->cp0_epc);
regs->cp0_epc = read_c0_errorepc();
die(str, regs);
nmi_exit();
}
#define VECTORSPACING 0x100 /* for EI/VI mode */
@ -2204,12 +2207,8 @@ void __init trap_init(void)
ebase = (unsigned long)
__alloc_bootmem(size, 1 << fls(size), 0);
} else {
#ifdef CONFIG_KVM_GUEST
#define KVM_GUEST_KSEG0 0x40000000
ebase = KVM_GUEST_KSEG0;
#else
ebase = CKSEG0;
#endif
ebase = CAC_BASE;
if (cpu_has_mips_r2_r6)
ebase += (read_c0_ebase() & 0x3ffff000);
}

2
arch/mips/kernel/unaligned.c
View File

@ -85,6 +85,7 @@
#include <asm/branch.h>
#include <asm/byteorder.h>
#include <asm/cop2.h>
#include <asm/debug.h>
#include <asm/fpu.h>
#include <asm/fpu_emulator.h>
#include <asm/inst.h>
@ -2295,7 +2296,6 @@ sigbus:
}
#ifdef CONFIG_DEBUG_FS
extern struct dentry *mips_debugfs_dir;
static int __init debugfs_unaligned(void)
{
struct dentry *d;

203
arch/mips/kernel/vdso.c
View File

@ -1,122 +1,175 @@
/*
* This file is subject to the terms and conditions of the GNU General Public
* License. See the file "COPYING" in the main directory of this archive
* for more details.
* Copyright (C) 2015 Imagination Technologies
* Author: Alex Smith <alex.smith@imgtec.com>
*
* Copyright (C) 2009, 2010 Cavium Networks, Inc.
* This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License as published by the
* Free Software Foundation; either version 2 of the License, or (at your
* option) any later version.
*/
#include <linux/kernel.h>
#include <linux/err.h>
#include <linux/sched.h>
#include <linux/mm.h>
#include <linux/init.h>
#include <linux/binfmts.h>
#include <linux/elf.h>
#include <linux/vmalloc.h>
#include <linux/unistd.h>
#include <linux/random.h>
#include <linux/err.h>
#include <linux/init.h>
#include <linux/ioport.h>
#include <linux/irqchip/mips-gic.h>
#include <linux/mm.h>
#include <linux/sched.h>
#include <linux/slab.h>
#include <linux/timekeeper_internal.h>
#include <asm/abi.h>
#include <asm/vdso.h>
#include <asm/uasm.h>
#include <asm/processor.h>
/* Kernel-provided data used by the VDSO. */
static union mips_vdso_data vdso_data __page_aligned_data;
/*
* Including <asm/unistd.h> would give use the 64-bit syscall numbers ...
* Mapping for the VDSO data/GIC pages. The real pages are mapped manually, as
* what we map and where within the area they are mapped is determined at
* runtime.
*/
#define __NR_O32_sigreturn 4119
#define __NR_O32_rt_sigreturn 4193
#define __NR_N32_rt_sigreturn 6211
static struct page *no_pages[] = { NULL };
static struct vm_special_mapping vdso_vvar_mapping = {
.name = "[vvar]",
.pages = no_pages,
};
static struct page *vdso_page;
static void __init install_trampoline(u32 *tramp, unsigned int sigreturn)
static void __init init_vdso_image(struct mips_vdso_image *image)
{
uasm_i_addiu(&tramp, 2, 0, sigreturn); /* li v0, sigreturn */
uasm_i_syscall(&tramp, 0);
unsigned long num_pages, i;
BUG_ON(!PAGE_ALIGNED(image->data));
BUG_ON(!PAGE_ALIGNED(image->size));
num_pages = image->size / PAGE_SIZE;
for (i = 0; i < num_pages; i++) {
image->mapping.pages[i] =
virt_to_page(image->data + (i * PAGE_SIZE));
}
}
static int __init init_vdso(void)
{
struct mips_vdso *vdso;
init_vdso_image(&vdso_image);
vdso_page = alloc_page(GFP_KERNEL);
if (!vdso_page)
panic("Cannot allocate vdso");
vdso = vmap(&vdso_page, 1, 0, PAGE_KERNEL);
if (!vdso)
panic("Cannot map vdso");
clear_page(vdso);
install_trampoline(vdso->rt_signal_trampoline, __NR_rt_sigreturn);
#ifdef CONFIG_32BIT
install_trampoline(vdso->signal_trampoline, __NR_sigreturn);
#else
install_trampoline(vdso->n32_rt_signal_trampoline,
__NR_N32_rt_sigreturn);
install_trampoline(vdso->o32_signal_trampoline, __NR_O32_sigreturn);
install_trampoline(vdso->o32_rt_signal_trampoline,
__NR_O32_rt_sigreturn);
#ifdef CONFIG_MIPS32_O32
init_vdso_image(&vdso_image_o32);
#endif
vunmap(vdso);
#ifdef CONFIG_MIPS32_N32
init_vdso_image(&vdso_image_n32);
#endif
return 0;
}
subsys_initcall(init_vdso);
static unsigned long vdso_addr(unsigned long start)
void update_vsyscall(struct timekeeper *tk)
{
unsigned long offset = 0UL;
vdso_data_write_begin(&vdso_data);
if (current->flags & PF_RANDOMIZE) {
offset = get_random_int();
offset <<= PAGE_SHIFT;
if (TASK_IS_32BIT_ADDR)
offset &= 0xfffffful;
else
offset &= 0xffffffful;
vdso_data.xtime_sec = tk->xtime_sec;
vdso_data.xtime_nsec = tk->tkr_mono.xtime_nsec;
vdso_data.wall_to_mono_sec = tk->wall_to_monotonic.tv_sec;
vdso_data.wall_to_mono_nsec = tk->wall_to_monotonic.tv_nsec;
vdso_data.cs_shift = tk->tkr_mono.shift;
vdso_data.clock_mode = tk->tkr_mono.clock->archdata.vdso_clock_mode;
if (vdso_data.clock_mode != VDSO_CLOCK_NONE) {
vdso_data.cs_mult = tk->tkr_mono.mult;
vdso_data.cs_cycle_last = tk->tkr_mono.cycle_last;
vdso_data.cs_mask = tk->tkr_mono.mask;
}
return STACK_TOP + offset;
vdso_data_write_end(&vdso_data);
}
void update_vsyscall_tz(void)
{
if (vdso_data.clock_mode != VDSO_CLOCK_NONE) {
vdso_data.tz_minuteswest = sys_tz.tz_minuteswest;
vdso_data.tz_dsttime = sys_tz.tz_dsttime;
}
}
int arch_setup_additional_pages(struct linux_binprm *bprm, int uses_interp)
{
int ret;
unsigned long addr;
struct mips_vdso_image *image = current->thread.abi->vdso;
struct mm_struct *mm = current->mm;
unsigned long gic_size, vvar_size, size, base, data_addr, vdso_addr;
struct vm_area_struct *vma;
struct resource gic_res;
int ret;
down_write(&mm->mmap_sem);
addr = vdso_addr(mm->start_stack);
/*
* Determine total area size. This includes the VDSO data itself, the
* data page, and the GIC user page if present. Always create a mapping
* for the GIC user area if the GIC is present regardless of whether it
* is the current clocksource, in case it comes into use later on. We
* only map a page even though the total area is 64K, as we only need
* the counter registers at the start.
*/
gic_size = gic_present ? PAGE_SIZE : 0;
vvar_size = gic_size + PAGE_SIZE;
size = vvar_size + image->size;
addr = get_unmapped_area(NULL, addr, PAGE_SIZE, 0, 0);
if (IS_ERR_VALUE(addr)) {
ret = addr;
goto up_fail;
base = get_unmapped_area(NULL, 0, size, 0, 0);
if (IS_ERR_VALUE(base)) {
ret = base;
goto out;
}
ret = install_special_mapping(mm, addr, PAGE_SIZE,
VM_READ|VM_EXEC|
VM_MAYREAD|VM_MAYWRITE|VM_MAYEXEC,
&vdso_page);
data_addr = base + gic_size;
vdso_addr = data_addr + PAGE_SIZE;
vma = _install_special_mapping(mm, base, vvar_size,
VM_READ | VM_MAYREAD,
&vdso_vvar_mapping);
if (IS_ERR(vma)) {
ret = PTR_ERR(vma);
goto out;
}
/* Map GIC user page. */
if (gic_size) {
ret = gic_get_usm_range(&gic_res);
if (ret)
goto out;
ret = io_remap_pfn_range(vma, base,
gic_res.start >> PAGE_SHIFT,
gic_size,
pgprot_noncached(PAGE_READONLY));
if (ret)
goto out;
}
/* Map data page. */
ret = remap_pfn_range(vma, data_addr,
virt_to_phys(&vdso_data) >> PAGE_SHIFT,
PAGE_SIZE, PAGE_READONLY);
if (ret)
goto up_fail;
goto out;
mm->context.vdso = (void *)addr;
/* Map VDSO image. */
vma = _install_special_mapping(mm, vdso_addr, image->size,
VM_READ | VM_EXEC |
VM_MAYREAD | VM_MAYWRITE | VM_MAYEXEC,
&image->mapping);
if (IS_ERR(vma)) {
ret = PTR_ERR(vma);
goto out;
}
up_fail:
mm->context.vdso = (void *)vdso_addr;
ret = 0;
out:
up_write(&mm->mmap_sem);
return ret;
}
const char *arch_vma_name(struct vm_area_struct *vma)
{
if (vma->vm_mm && vma->vm_start == (long)vma->vm_mm->context.vdso)
return "[vdso]";
return NULL;
}

15
arch/mips/kernel/vmlinux.lds.S
View File

@ -17,7 +17,9 @@ OUTPUT_ARCH(mips)
ENTRY(kernel_entry)
PHDRS {
text PT_LOAD FLAGS(7); /* RWX */
#ifndef CONFIG_CAVIUM_OCTEON_SOC
note PT_NOTE FLAGS(4); /* R__ */
#endif /* CAVIUM_OCTEON_SOC */
}
#ifdef CONFIG_32BIT
@ -71,7 +73,12 @@ SECTIONS
__stop___dbe_table = .;
}
NOTES :text :note
#ifdef CONFIG_CAVIUM_OCTEON_SOC
#define NOTES_HEADER
#else /* CONFIG_CAVIUM_OCTEON_SOC */
#define NOTES_HEADER :note
#endif /* CONFIG_CAVIUM_OCTEON_SOC */
NOTES :text NOTES_HEADER
.dummy : { *(.dummy) } :text
_sdata = .; /* Start of data section */
@ -132,6 +139,11 @@ SECTIONS
__appended_dtb = .;
/* leave space for appended DTB */
. += 0x100000;
#elif defined(CONFIG_MIPS_ELF_APPENDED_DTB)
.appended_dtb : AT(ADDR(.appended_dtb) - LOAD_OFFSET) {
*(.appended_dtb)
KEEP(*(.appended_dtb))
}
#endif
/*
* Align to 64K in attempt to eliminate holes before the
@ -181,6 +193,7 @@ SECTIONS
DISCARDS
/DISCARD/ : {
/* ABI crap starts here */
*(.MIPS.abiflags)
*(.MIPS.options)
*(.options)
*(.pdr)

8
arch/mips/kvm/locore.S
View File

@ -36,14 +36,6 @@
#define PT_HOST_USERLOCAL PT_EPC
#define CP0_DDATA_LO $28,3
#define CP0_CONFIG3 $16,3
#define CP0_CONFIG5 $16,5
#define CP0_EBASE $15,1
#define CP0_INTCTL $12,1
#define CP0_SRSCTL $12,2
#define CP0_SRSMAP $12,3
#define CP0_HWRENA $7,0
/* Resume Flags */
#define RESUME_FLAG_HOST (1<<1) /* Resume host? */

17
arch/mips/lantiq/clk.c
View File

@ -99,6 +99,23 @@ int clk_set_rate(struct clk *clk, unsigned long rate)
}
EXPORT_SYMBOL(clk_set_rate);
long clk_round_rate(struct clk *clk, unsigned long rate)
{
if (unlikely(!clk_good(clk)))
return 0;
if (clk->rates && *clk->rates) {
unsigned long *r = clk->rates;
while (*r && (*r != rate))
r++;
if (!*r) {
return clk->rate;
}
}
return rate;
}
EXPORT_SYMBOL(clk_round_rate);
int clk_enable(struct clk *clk)
{
if (unlikely(!clk_good(clk)))

13
arch/mips/lantiq/clk.h
View File

@ -31,13 +31,18 @@
#define CLOCK_240M 240000000
#define CLOCK_250M 250000000
#define CLOCK_266M 266666666
#define CLOCK_288M 288888888
#define CLOCK_300M 300000000
#define CLOCK_333M 333333333
#define CLOCK_360M 360000000
#define CLOCK_393M 393215332
#define CLOCK_400M 400000000
#define CLOCK_432M 432000000
#define CLOCK_450M 450000000
#define CLOCK_500M 500000000
#define CLOCK_600M 600000000
#define CLOCK_666M 666666666
#define CLOCK_720M 720000000
/* clock out speeds */
#define CLOCK_32_768K 32768
@ -80,4 +85,12 @@ extern unsigned long ltq_vr9_cpu_hz(void);
extern unsigned long ltq_vr9_fpi_hz(void);
extern unsigned long ltq_vr9_pp32_hz(void);
extern unsigned long ltq_ar10_cpu_hz(void);
extern unsigned long ltq_ar10_fpi_hz(void);
extern unsigned long ltq_ar10_pp32_hz(void);
extern unsigned long ltq_grx390_cpu_hz(void);
extern unsigned long ltq_grx390_fpi_hz(void);
extern unsigned long ltq_grx390_pp32_hz(void);
#endif

8
arch/mips/lantiq/irq.c
View File

@ -369,8 +369,8 @@ int __init icu_of_init(struct device_node *node, struct device_node *parent)
if (of_address_to_resource(node, i, &res))
panic("Failed to get icu memory range");
if (request_mem_region(res.start, resource_size(&res),
res.name) < 0)
if (!request_mem_region(res.start, resource_size(&res),
res.name))
pr_err("Failed to request icu memory");
ltq_icu_membase[i] = ioremap_nocache(res.start,
@ -449,8 +449,8 @@ int __init icu_of_init(struct device_node *node, struct device_node *parent)
if (ret != exin_avail)
panic("failed to load external irq resources");
if (request_mem_region(res.start, resource_size(&res),
res.name) < 0)
if (!request_mem_region(res.start, resource_size(&res),
res.name))
pr_err("Failed to request eiu memory");
ltq_eiu_membase = ioremap_nocache(res.start,

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