forked from Minki/linux
ARM development for 5.9-rc1:
- add arch/arm/Kbuild from Masahiro Yamada. - simplify act_mm macro, since it contains an open-coded get_thread_info. - VFP updates for Clang from Stefan Agner. - Fix unwinder for Clang from Nathan Huckleberry. - Remove unused it8152 PCI host controller, used by the removed cm-x2xx platforms from Mike Rapoport. - Further explanation of __range_ok(). - Remove kimage_voffset that isn't used anymore from Marc Zyngier. - Drop ancient Thumb-2 workaround for old binutils from Ard Biesheuvel. - Documentation cleanup for mach-* from Pete Zaitcev. -----BEGIN PGP SIGNATURE----- iQIzBAABCgAdFiEEuNNh8scc2k/wOAE+9OeQG+StrGQFAl8sOXMACgkQ9OeQG+St rGRFCBAAlBOdZmiB4/UW59LEdBRhNg4C0HNQmOxQqp6oMZLw9Whu3SDHeBePVvqA gp8z3rJL6N6XhSmv0dplWxgX2FrBfscjlwa7wLcwtz1NCTeGT1xL6s2dwH2q8Ocw swfcFhdFiJ+ewtylfYqogGPQyFXOPnTGv7B/cH+IX1kP0OcpgDb+pDy24MrrrD4r 6DC8fIkZtDcvABJGSEthiMx29Pn1jbGAZWW3acVDtnMgppzB6brMH/A1HirMo0G9 qGxejqJ+/DgsQciRBxfSI2N4U42XRVacW1vGdN19tFWYhHNStx9PnV9JHo61sQFM UiI1fARat8dlY8qT72binE1gbDZ4HOLJ5181BjDEchoO/qnxxi0tOlOlFO6PB0fz innRDC5TGLjBb/9B5YkHLSoDDo0erovJUV1m1pz/T9Dd6rO+1BV6Q2GI312dxLVR IfRJ8PVI9WZaYjZgxp14m1l0tRNI0BJoRT6QjADwAxo5leRFho6KbsfAgNCm8/ni lfqo3kHrLnd3pojljiuvW8/oBdqYTA86VAlfzyJ/rFOHMlROeFGCoCDqsBeqR1gZ pX3zQU5Jf8pJXsXaM1hXO/CcK61Nr4/m18uyjLpJeyYNJWz3CZ/hndhLJR91cShT hTP1bB/UQlprOP6CgjTPj1MCCA9HCRCo8k5y/s9VKpMZ8SM9Ghw= =RWzO -----END PGP SIGNATURE----- Merge tag 'for-linus' of git://git.armlinux.org.uk/~rmk/linux-arm Pull ARM updates from Russell King: - add arch/arm/Kbuild from Masahiro Yamada. - simplify act_mm macro, since it contains an open-coded get_thread_info. - VFP updates for Clang from Stefan Agner. - Fix unwinder for Clang from Nathan Huckleberry. - Remove unused it8152 PCI host controller, used by the removed cm-x2xx platforms from Mike Rapoport. - Further explanation of __range_ok(). - Remove kimage_voffset that isn't used anymore from Marc Zyngier. - Drop ancient Thumb-2 workaround for old binutils from Ard Biesheuvel. - Documentation cleanup for mach-* from Pete Zaitcev. * tag 'for-linus' of git://git.armlinux.org.uk/~rmk/linux-arm: ARM: 8996/1: Documentation/Clean up the description of mach-<class> ARM: 8995/1: drop Thumb-2 workaround for ancient binutils ARM: 8994/1: mm: drop kimage_voffset which was only used by KVM ARM: uaccess: add further explanation of __range_ok() ARM: 8993/1: remove it8152 PCI controller driver ARM: 8992/1: Fix unwind_frame for clang-built kernels ARM: 8991/1: use VFP assembler mnemonics if available ARM: 8990/1: use VFP assembler mnemonics in register load/store macros ARM: 8989/1: use .fpu assembler directives instead of assembler arguments ARM: 8982/1: mm: Simplify act_mm macro ARM: 8981/1: add arch/arm/Kbuild
This commit is contained in:
Linus Torvalds
commit
40ddad1913
@ -184,10 +184,8 @@ Kernel entry (head.S)
|
||||
We group machine (or platform) support code into machine classes. A
|
||||
class typically based around one or more system on a chip devices, and
|
||||
acts as a natural container around the actual implementations. These
|
||||
classes are given directories - arch/arm/mach-<class> and
|
||||
arch/arm/mach-<class> - which contain the source files to/include/mach
|
||||
support the machine class. This directories also contain any machine
|
||||
specific supporting code.
|
||||
classes are given directories - arch/arm/mach-<class> - which contain
|
||||
the source files and include/mach/ to support the machine class.
|
||||
|
||||
For example, the SA1100 class is based upon the SA1100 and SA1110 SoC
|
||||
devices, and contains the code to support the way the on-board and off-
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||||
|
||||
11
arch/arm/Kbuild
Normal file
11
arch/arm/Kbuild
Normal file
@ -0,0 +1,11 @@
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||||
# SPDX-License-Identifier: GPL-2.0-only
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||||
obj-$(CONFIG_FPE_NWFPE) += nwfpe/
|
||||
# Put arch/arm/fastfpe/ to use this.
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||||
obj-$(CONFIG_FPE_FASTFPE) += $(patsubst $(srctree)/$(src)/%,%,$(wildcard $(srctree)/$(src)/fastfpe/))
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||||
obj-$(CONFIG_VFP) += vfp/
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||||
obj-$(CONFIG_XEN) += xen/
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||||
obj-$(CONFIG_VDSO) += vdso/
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obj-y += kernel/ mm/ common/
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||||
obj-y += probes/
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||||
obj-y += net/
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||||
obj-y += crypto/
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||||
@ -1150,12 +1150,6 @@ config PCI_NANOENGINE
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help
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||||
Enable PCI on the BSE nanoEngine board.
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||||
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||||
config PCI_HOST_ITE8152
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bool
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depends on PCI && MACH_ARMCORE
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||||
default y
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||||
select DMABOUNCE
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||||
|
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config ARM_ERRATA_814220
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bool "ARM errata: Cache maintenance by set/way operations can execute out of order"
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depends on CPU_V7
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@ -1430,37 +1424,6 @@ config THUMB2_KERNEL
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|
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If unsure, say N.
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config THUMB2_AVOID_R_ARM_THM_JUMP11
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bool "Work around buggy Thumb-2 short branch relocations in gas"
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depends on THUMB2_KERNEL && MODULES
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||||
default y
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||||
help
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||||
Various binutils versions can resolve Thumb-2 branches to
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||||
locally-defined, preemptible global symbols as short-range "b.n"
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||||
branch instructions.
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||||
|
||||
This is a problem, because there's no guarantee the final
|
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destination of the symbol, or any candidate locations for a
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trampoline, are within range of the branch. For this reason, the
|
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kernel does not support fixing up the R_ARM_THM_JUMP11 (102)
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||||
relocation in modules at all, and it makes little sense to add
|
||||
support.
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||||
|
||||
The symptom is that the kernel fails with an "unsupported
|
||||
relocation" error when loading some modules.
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||||
|
||||
Until fixed tools are available, passing
|
||||
-fno-optimize-sibling-calls to gcc should prevent gcc generating
|
||||
code which hits this problem, at the cost of a bit of extra runtime
|
||||
stack usage in some cases.
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||||
|
||||
The problem is described in more detail at:
|
||||
https://bugs.launchpad.net/binutils-linaro/+bug/725126
|
||||
|
||||
Only Thumb-2 kernels are affected.
|
||||
|
||||
Unless you are sure your tools don't have this problem, say Y.
|
||||
|
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config ARM_PATCH_IDIV
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bool "Runtime patch udiv/sdiv instructions into __aeabi_{u}idiv()"
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depends on CPU_32v7 && !XIP_KERNEL
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@ -2099,3 +2062,5 @@ source "drivers/firmware/Kconfig"
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if CRYPTO
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source "arch/arm/crypto/Kconfig"
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endif
|
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|
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source "arch/arm/Kconfig.assembler"
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6
arch/arm/Kconfig.assembler
Normal file
6
arch/arm/Kconfig.assembler
Normal file
@ -0,0 +1,6 @@
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||||
# SPDX-License-Identifier: GPL-2.0
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||||
|
||||
config AS_VFP_VMRS_FPINST
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def_bool $(as-instr,.fpu vfpv2\nvmrs r0$(comma)FPINST)
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||||
help
|
||||
Supported by binutils >= 2.24 and LLVM integrated assembler.
|
||||
@ -123,10 +123,6 @@ AFLAGS_NOWARN :=$(call as-option,-Wa$(comma)-mno-warn-deprecated,-Wa$(comma)-W)
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ifeq ($(CONFIG_THUMB2_KERNEL),y)
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||||
CFLAGS_ISA :=-mthumb -Wa,-mimplicit-it=always $(AFLAGS_NOWARN)
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||||
AFLAGS_ISA :=$(CFLAGS_ISA) -Wa$(comma)-mthumb
|
||||
# Work around buggy relocation from gas if requested:
|
||||
ifeq ($(CONFIG_THUMB2_AVOID_R_ARM_THM_JUMP11),y)
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||||
KBUILD_CFLAGS_MODULE +=-fno-optimize-sibling-calls
|
||||
endif
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||||
else
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CFLAGS_ISA :=$(call cc-option,-marm,) $(AFLAGS_NOWARN)
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||||
AFLAGS_ISA :=$(CFLAGS_ISA)
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@ -276,18 +272,8 @@ endif
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||||
|
||||
export TEXT_OFFSET GZFLAGS MMUEXT
|
||||
|
||||
core-$(CONFIG_FPE_NWFPE) += arch/arm/nwfpe/
|
||||
# Put arch/arm/fastfpe/ to use this.
|
||||
core-$(CONFIG_FPE_FASTFPE) += $(patsubst $(srctree)/%,%,$(wildcard $(srctree)/arch/arm/fastfpe/))
|
||||
core-$(CONFIG_VFP) += arch/arm/vfp/
|
||||
core-$(CONFIG_XEN) += arch/arm/xen/
|
||||
core-$(CONFIG_VDSO) += arch/arm/vdso/
|
||||
|
||||
core-y += arch/arm/
|
||||
# If we have a machine-specific directory, then include it in the build.
|
||||
core-y += arch/arm/kernel/ arch/arm/mm/ arch/arm/common/
|
||||
core-y += arch/arm/probes/
|
||||
core-y += arch/arm/net/
|
||||
core-y += arch/arm/crypto/
|
||||
core-y += $(machdirs) $(platdirs)
|
||||
|
||||
# For cleaning
|
||||
|
||||
@ -12,7 +12,6 @@ obj-$(CONFIG_SHARP_LOCOMO) += locomo.o
|
||||
obj-$(CONFIG_SHARP_PARAM) += sharpsl_param.o
|
||||
obj-$(CONFIG_SHARP_SCOOP) += scoop.o
|
||||
obj-$(CONFIG_CPU_V7) += secure_cntvoff.o
|
||||
obj-$(CONFIG_PCI_HOST_ITE8152) += it8152.o
|
||||
obj-$(CONFIG_MCPM) += mcpm_head.o mcpm_entry.o mcpm_platsmp.o vlock.o
|
||||
CFLAGS_REMOVE_mcpm_entry.o = -pg
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||||
AFLAGS_mcpm_head.o := -march=armv7-a
|
||||
|
||||
@ -1,352 +0,0 @@
|
||||
// SPDX-License-Identifier: GPL-2.0-only
|
||||
/*
|
||||
* linux/arch/arm/common/it8152.c
|
||||
*
|
||||
* Copyright Compulab Ltd, 2002-2007
|
||||
* Mike Rapoport <mike@compulab.co.il>
|
||||
*
|
||||
* The DMA bouncing part is taken from arch/arm/mach-ixp4xx/common-pci.c
|
||||
* (see this file for respective copyrights)
|
||||
*
|
||||
* Thanks to Guennadi Liakhovetski <gl@dsa-ac.de> for IRQ enumberation
|
||||
* and demux code.
|
||||
*/
|
||||
|
||||
#include <linux/sched.h>
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||||
#include <linux/kernel.h>
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||||
#include <linux/pci.h>
|
||||
#include <linux/ptrace.h>
|
||||
#include <linux/interrupt.h>
|
||||
#include <linux/mm.h>
|
||||
#include <linux/init.h>
|
||||
#include <linux/ioport.h>
|
||||
#include <linux/irq.h>
|
||||
#include <linux/io.h>
|
||||
#include <linux/export.h>
|
||||
|
||||
#include <asm/mach/pci.h>
|
||||
#include <asm/hardware/it8152.h>
|
||||
|
||||
#define MAX_SLOTS 21
|
||||
|
||||
static void it8152_mask_irq(struct irq_data *d)
|
||||
{
|
||||
unsigned int irq = d->irq;
|
||||
|
||||
if (irq >= IT8152_LD_IRQ(0)) {
|
||||
__raw_writel((__raw_readl(IT8152_INTC_LDCNIMR) |
|
||||
(1 << (irq - IT8152_LD_IRQ(0)))),
|
||||
IT8152_INTC_LDCNIMR);
|
||||
} else if (irq >= IT8152_LP_IRQ(0)) {
|
||||
__raw_writel((__raw_readl(IT8152_INTC_LPCNIMR) |
|
||||
(1 << (irq - IT8152_LP_IRQ(0)))),
|
||||
IT8152_INTC_LPCNIMR);
|
||||
} else if (irq >= IT8152_PD_IRQ(0)) {
|
||||
__raw_writel((__raw_readl(IT8152_INTC_PDCNIMR) |
|
||||
(1 << (irq - IT8152_PD_IRQ(0)))),
|
||||
IT8152_INTC_PDCNIMR);
|
||||
}
|
||||
}
|
||||
|
||||
static void it8152_unmask_irq(struct irq_data *d)
|
||||
{
|
||||
unsigned int irq = d->irq;
|
||||
|
||||
if (irq >= IT8152_LD_IRQ(0)) {
|
||||
__raw_writel((__raw_readl(IT8152_INTC_LDCNIMR) &
|
||||
~(1 << (irq - IT8152_LD_IRQ(0)))),
|
||||
IT8152_INTC_LDCNIMR);
|
||||
} else if (irq >= IT8152_LP_IRQ(0)) {
|
||||
__raw_writel((__raw_readl(IT8152_INTC_LPCNIMR) &
|
||||
~(1 << (irq - IT8152_LP_IRQ(0)))),
|
||||
IT8152_INTC_LPCNIMR);
|
||||
} else if (irq >= IT8152_PD_IRQ(0)) {
|
||||
__raw_writel((__raw_readl(IT8152_INTC_PDCNIMR) &
|
||||
~(1 << (irq - IT8152_PD_IRQ(0)))),
|
||||
IT8152_INTC_PDCNIMR);
|
||||
}
|
||||
}
|
||||
|
||||
static struct irq_chip it8152_irq_chip = {
|
||||
.name = "it8152",
|
||||
.irq_ack = it8152_mask_irq,
|
||||
.irq_mask = it8152_mask_irq,
|
||||
.irq_unmask = it8152_unmask_irq,
|
||||
};
|
||||
|
||||
void it8152_init_irq(void)
|
||||
{
|
||||
int irq;
|
||||
|
||||
__raw_writel((0xffff), IT8152_INTC_PDCNIMR);
|
||||
__raw_writel((0), IT8152_INTC_PDCNIRR);
|
||||
__raw_writel((0xffff), IT8152_INTC_LPCNIMR);
|
||||
__raw_writel((0), IT8152_INTC_LPCNIRR);
|
||||
__raw_writel((0xffff), IT8152_INTC_LDCNIMR);
|
||||
__raw_writel((0), IT8152_INTC_LDCNIRR);
|
||||
|
||||
for (irq = IT8152_IRQ(0); irq <= IT8152_LAST_IRQ; irq++) {
|
||||
irq_set_chip_and_handler(irq, &it8152_irq_chip,
|
||||
handle_level_irq);
|
||||
irq_clear_status_flags(irq, IRQ_NOREQUEST | IRQ_NOPROBE);
|
||||
}
|
||||
}
|
||||
|
||||
void it8152_irq_demux(struct irq_desc *desc)
|
||||
{
|
||||
int bits_pd, bits_lp, bits_ld;
|
||||
int i;
|
||||
|
||||
while (1) {
|
||||
/* Read all */
|
||||
bits_pd = __raw_readl(IT8152_INTC_PDCNIRR);
|
||||
bits_lp = __raw_readl(IT8152_INTC_LPCNIRR);
|
||||
bits_ld = __raw_readl(IT8152_INTC_LDCNIRR);
|
||||
|
||||
/* Ack */
|
||||
__raw_writel((~bits_pd), IT8152_INTC_PDCNIRR);
|
||||
__raw_writel((~bits_lp), IT8152_INTC_LPCNIRR);
|
||||
__raw_writel((~bits_ld), IT8152_INTC_LDCNIRR);
|
||||
|
||||
if (!(bits_ld | bits_lp | bits_pd)) {
|
||||
/* Re-read to guarantee, that there was a moment of
|
||||
time, when they all three were 0. */
|
||||
bits_pd = __raw_readl(IT8152_INTC_PDCNIRR);
|
||||
bits_lp = __raw_readl(IT8152_INTC_LPCNIRR);
|
||||
bits_ld = __raw_readl(IT8152_INTC_LDCNIRR);
|
||||
if (!(bits_ld | bits_lp | bits_pd))
|
||||
return;
|
||||
}
|
||||
|
||||
bits_pd &= ((1 << IT8152_PD_IRQ_COUNT) - 1);
|
||||
while (bits_pd) {
|
||||
i = __ffs(bits_pd);
|
||||
generic_handle_irq(IT8152_PD_IRQ(i));
|
||||
bits_pd &= ~(1 << i);
|
||||
}
|
||||
|
||||
bits_lp &= ((1 << IT8152_LP_IRQ_COUNT) - 1);
|
||||
while (bits_lp) {
|
||||
i = __ffs(bits_lp);
|
||||
generic_handle_irq(IT8152_LP_IRQ(i));
|
||||
bits_lp &= ~(1 << i);
|
||||
}
|
||||
|
||||
bits_ld &= ((1 << IT8152_LD_IRQ_COUNT) - 1);
|
||||
while (bits_ld) {
|
||||
i = __ffs(bits_ld);
|
||||
generic_handle_irq(IT8152_LD_IRQ(i));
|
||||
bits_ld &= ~(1 << i);
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
/* mapping for on-chip devices */
|
||||
int __init it8152_pci_map_irq(const struct pci_dev *dev, u8 slot, u8 pin)
|
||||
{
|
||||
if ((dev->vendor == PCI_VENDOR_ID_ITE) &&
|
||||
(dev->device == PCI_DEVICE_ID_ITE_8152)) {
|
||||
if ((dev->class >> 8) == PCI_CLASS_MULTIMEDIA_AUDIO)
|
||||
return IT8152_AUDIO_INT;
|
||||
if ((dev->class >> 8) == PCI_CLASS_SERIAL_USB)
|
||||
return IT8152_USB_INT;
|
||||
if ((dev->class >> 8) == PCI_CLASS_SYSTEM_DMA)
|
||||
return IT8152_CDMA_INT;
|
||||
}
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
static unsigned long it8152_pci_dev_base_address(struct pci_bus *bus,
|
||||
unsigned int devfn)
|
||||
{
|
||||
unsigned long addr = 0;
|
||||
|
||||
if (bus->number == 0) {
|
||||
if (devfn < PCI_DEVFN(MAX_SLOTS, 0))
|
||||
addr = (devfn << 8);
|
||||
} else
|
||||
addr = (bus->number << 16) | (devfn << 8);
|
||||
|
||||
return addr;
|
||||
}
|
||||
|
||||
static int it8152_pci_read_config(struct pci_bus *bus,
|
||||
unsigned int devfn, int where,
|
||||
int size, u32 *value)
|
||||
{
|
||||
unsigned long addr = it8152_pci_dev_base_address(bus, devfn);
|
||||
u32 v;
|
||||
int shift;
|
||||
|
||||
shift = (where & 3);
|
||||
|
||||
__raw_writel((addr + where), IT8152_PCI_CFG_ADDR);
|
||||
v = (__raw_readl(IT8152_PCI_CFG_DATA) >> (8 * (shift)));
|
||||
|
||||
*value = v;
|
||||
|
||||
return PCIBIOS_SUCCESSFUL;
|
||||
}
|
||||
|
||||
static int it8152_pci_write_config(struct pci_bus *bus,
|
||||
unsigned int devfn, int where,
|
||||
int size, u32 value)
|
||||
{
|
||||
unsigned long addr = it8152_pci_dev_base_address(bus, devfn);
|
||||
u32 v, vtemp, mask = 0;
|
||||
int shift;
|
||||
|
||||
if (size == 1)
|
||||
mask = 0xff;
|
||||
if (size == 2)
|
||||
mask = 0xffff;
|
||||
|
||||
shift = (where & 3);
|
||||
|
||||
__raw_writel((addr + where), IT8152_PCI_CFG_ADDR);
|
||||
vtemp = __raw_readl(IT8152_PCI_CFG_DATA);
|
||||
|
||||
if (mask)
|
||||
vtemp &= ~(mask << (8 * shift));
|
||||
else
|
||||
vtemp = 0;
|
||||
|
||||
v = (value << (8 * shift));
|
||||
__raw_writel((addr + where), IT8152_PCI_CFG_ADDR);
|
||||
__raw_writel((v | vtemp), IT8152_PCI_CFG_DATA);
|
||||
|
||||
return PCIBIOS_SUCCESSFUL;
|
||||
}
|
||||
|
||||
struct pci_ops it8152_ops = {
|
||||
.read = it8152_pci_read_config,
|
||||
.write = it8152_pci_write_config,
|
||||
};
|
||||
|
||||
static struct resource it8152_io = {
|
||||
.name = "IT8152 PCI I/O region",
|
||||
.flags = IORESOURCE_IO,
|
||||
};
|
||||
|
||||
static struct resource it8152_mem = {
|
||||
.name = "IT8152 PCI memory region",
|
||||
.start = 0x10000000,
|
||||
.end = 0x13e00000,
|
||||
.flags = IORESOURCE_MEM,
|
||||
};
|
||||
|
||||
/*
|
||||
* The following functions are needed for DMA bouncing.
|
||||
* ITE8152 chip can address up to 64MByte, so all the devices
|
||||
* connected to ITE8152 (PCI and USB) should have limited DMA window
|
||||
*/
|
||||
static int it8152_needs_bounce(struct device *dev, dma_addr_t dma_addr, size_t size)
|
||||
{
|
||||
dev_dbg(dev, "%s: dma_addr %08x, size %08x\n",
|
||||
__func__, dma_addr, size);
|
||||
return (dma_addr + size - PHYS_OFFSET) >= SZ_64M;
|
||||
}
|
||||
|
||||
/*
|
||||
* Setup DMA mask to 64MB on devices connected to ITE8152. Ignore all
|
||||
* other devices.
|
||||
*/
|
||||
static int it8152_pci_platform_notify(struct device *dev)
|
||||
{
|
||||
if (dev_is_pci(dev)) {
|
||||
if (dev->dma_mask)
|
||||
*dev->dma_mask = (SZ_64M - 1) | PHYS_OFFSET;
|
||||
dev->coherent_dma_mask = (SZ_64M - 1) | PHYS_OFFSET;
|
||||
dmabounce_register_dev(dev, 2048, 4096, it8152_needs_bounce);
|
||||
}
|
||||
return 0;
|
||||
}
|
||||
|
||||
static int it8152_pci_platform_notify_remove(struct device *dev)
|
||||
{
|
||||
if (dev_is_pci(dev))
|
||||
dmabounce_unregister_dev(dev);
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
int dma_set_coherent_mask(struct device *dev, u64 mask)
|
||||
{
|
||||
if (mask >= PHYS_OFFSET + SZ_64M - 1)
|
||||
return 0;
|
||||
|
||||
return -EIO;
|
||||
}
|
||||
|
||||
int __init it8152_pci_setup(int nr, struct pci_sys_data *sys)
|
||||
{
|
||||
/*
|
||||
* FIXME: use pci_ioremap_io to remap the IO space here and
|
||||
* move over to the generic io.h implementation.
|
||||
* This requires solving the same problem for PXA PCMCIA
|
||||
* support.
|
||||
*/
|
||||
it8152_io.start = (unsigned long)IT8152_IO_BASE + 0x12000;
|
||||
it8152_io.end = (unsigned long)IT8152_IO_BASE + 0x12000 + 0x100000;
|
||||
|
||||
sys->mem_offset = 0x10000000;
|
||||
sys->io_offset = (unsigned long)IT8152_IO_BASE;
|
||||
|
||||
if (request_resource(&ioport_resource, &it8152_io)) {
|
||||
printk(KERN_ERR "PCI: unable to allocate IO region\n");
|
||||
goto err0;
|
||||
}
|
||||
if (request_resource(&iomem_resource, &it8152_mem)) {
|
||||
printk(KERN_ERR "PCI: unable to allocate memory region\n");
|
||||
goto err1;
|
||||
}
|
||||
|
||||
pci_add_resource_offset(&sys->resources, &it8152_io, sys->io_offset);
|
||||
pci_add_resource_offset(&sys->resources, &it8152_mem, sys->mem_offset);
|
||||
|
||||
if (platform_notify || platform_notify_remove) {
|
||||
printk(KERN_ERR "PCI: Can't use platform_notify\n");
|
||||
goto err2;
|
||||
}
|
||||
|
||||
platform_notify = it8152_pci_platform_notify;
|
||||
platform_notify_remove = it8152_pci_platform_notify_remove;
|
||||
|
||||
return 1;
|
||||
|
||||
err2:
|
||||
release_resource(&it8152_io);
|
||||
err1:
|
||||
release_resource(&it8152_mem);
|
||||
err0:
|
||||
return -EBUSY;
|
||||
}
|
||||
|
||||
/* ITE bridge requires setting latency timer to avoid early bus access
|
||||
termination by PCI bus master devices
|
||||
*/
|
||||
void pcibios_set_master(struct pci_dev *dev)
|
||||
{
|
||||
u8 lat;
|
||||
|
||||
/* no need to update on-chip OHCI controller */
|
||||
if ((dev->vendor == PCI_VENDOR_ID_ITE) &&
|
||||
(dev->device == PCI_DEVICE_ID_ITE_8152) &&
|
||||
((dev->class >> 8) == PCI_CLASS_SERIAL_USB))
|
||||
return;
|
||||
|
||||
pci_read_config_byte(dev, PCI_LATENCY_TIMER, &lat);
|
||||
if (lat < 16)
|
||||
lat = (64 <= pcibios_max_latency) ? 64 : pcibios_max_latency;
|
||||
else if (lat > pcibios_max_latency)
|
||||
lat = pcibios_max_latency;
|
||||
else
|
||||
return;
|
||||
printk(KERN_DEBUG "PCI: Setting latency timer of device %s to %d\n",
|
||||
pci_name(dev), lat);
|
||||
pci_write_config_byte(dev, PCI_LATENCY_TIMER, lat);
|
||||
}
|
||||
|
||||
|
||||
EXPORT_SYMBOL(dma_set_coherent_mask);
|
||||
@ -1,116 +0,0 @@
|
||||
/* SPDX-License-Identifier: GPL-2.0 */
|
||||
/*
|
||||
* linux/include/arm/hardware/it8152.h
|
||||
*
|
||||
* Copyright Compulab Ltd., 2006,2007
|
||||
* Mike Rapoport <mike@compulab.co.il>
|
||||
*
|
||||
* ITE 8152 companion chip register definitions
|
||||
*/
|
||||
|
||||
#ifndef __ASM_HARDWARE_IT8152_H
|
||||
#define __ASM_HARDWARE_IT8152_H
|
||||
|
||||
#include <mach/irqs.h>
|
||||
|
||||
extern void __iomem *it8152_base_address;
|
||||
|
||||
#define IT8152_IO_BASE (it8152_base_address + 0x03e00000)
|
||||
#define IT8152_CFGREG_BASE (it8152_base_address + 0x03f00000)
|
||||
|
||||
#define __REG_IT8152(x) (it8152_base_address + (x))
|
||||
|
||||
#define IT8152_PCI_CFG_ADDR __REG_IT8152(0x3f00800)
|
||||
#define IT8152_PCI_CFG_DATA __REG_IT8152(0x3f00804)
|
||||
|
||||
#define IT8152_INTC_LDCNIRR __REG_IT8152(0x3f00300)
|
||||
#define IT8152_INTC_LDPNIRR __REG_IT8152(0x3f00304)
|
||||
#define IT8152_INTC_LDCNIMR __REG_IT8152(0x3f00308)
|
||||
#define IT8152_INTC_LDPNIMR __REG_IT8152(0x3f0030C)
|
||||
#define IT8152_INTC_LDNITR __REG_IT8152(0x3f00310)
|
||||
#define IT8152_INTC_LDNIAR __REG_IT8152(0x3f00314)
|
||||
#define IT8152_INTC_LPCNIRR __REG_IT8152(0x3f00320)
|
||||
#define IT8152_INTC_LPPNIRR __REG_IT8152(0x3f00324)
|
||||
#define IT8152_INTC_LPCNIMR __REG_IT8152(0x3f00328)
|
||||
#define IT8152_INTC_LPPNIMR __REG_IT8152(0x3f0032C)
|
||||
#define IT8152_INTC_LPNITR __REG_IT8152(0x3f00330)
|
||||
#define IT8152_INTC_LPNIAR __REG_IT8152(0x3f00334)
|
||||
#define IT8152_INTC_PDCNIRR __REG_IT8152(0x3f00340)
|
||||
#define IT8152_INTC_PDPNIRR __REG_IT8152(0x3f00344)
|
||||
#define IT8152_INTC_PDCNIMR __REG_IT8152(0x3f00348)
|
||||
#define IT8152_INTC_PDPNIMR __REG_IT8152(0x3f0034C)
|
||||
#define IT8152_INTC_PDNITR __REG_IT8152(0x3f00350)
|
||||
#define IT8152_INTC_PDNIAR __REG_IT8152(0x3f00354)
|
||||
#define IT8152_INTC_INTC_TYPER __REG_IT8152(0x3f003FC)
|
||||
|
||||
#define IT8152_GPIO_GPDR __REG_IT8152(0x3f00500)
|
||||
|
||||
/*
|
||||
Interrupt controller per register summary:
|
||||
---------------------------------------
|
||||
LCDNIRR:
|
||||
IT8152_LD_IRQ(8) PCICLK stop
|
||||
IT8152_LD_IRQ(7) MCLK ready
|
||||
IT8152_LD_IRQ(6) s/w
|
||||
IT8152_LD_IRQ(5) UART
|
||||
IT8152_LD_IRQ(4) GPIO
|
||||
IT8152_LD_IRQ(3) TIMER 4
|
||||
IT8152_LD_IRQ(2) TIMER 3
|
||||
IT8152_LD_IRQ(1) TIMER 2
|
||||
IT8152_LD_IRQ(0) TIMER 1
|
||||
|
||||
LPCNIRR:
|
||||
IT8152_LP_IRQ(x) serial IRQ x
|
||||
|
||||
PCIDNIRR:
|
||||
IT8152_PD_IRQ(14) PCISERR
|
||||
IT8152_PD_IRQ(13) CPU/PCI bridge target abort (h2pTADR)
|
||||
IT8152_PD_IRQ(12) CPU/PCI bridge master abort (h2pMADR)
|
||||
IT8152_PD_IRQ(11) PCI INTD
|
||||
IT8152_PD_IRQ(10) PCI INTC
|
||||
IT8152_PD_IRQ(9) PCI INTB
|
||||
IT8152_PD_IRQ(8) PCI INTA
|
||||
IT8152_PD_IRQ(7) serial INTD
|
||||
IT8152_PD_IRQ(6) serial INTC
|
||||
IT8152_PD_IRQ(5) serial INTB
|
||||
IT8152_PD_IRQ(4) serial INTA
|
||||
IT8152_PD_IRQ(3) serial IRQ IOCHK (IOCHKR)
|
||||
IT8152_PD_IRQ(2) chaining DMA (CDMAR)
|
||||
IT8152_PD_IRQ(1) USB (USBR)
|
||||
IT8152_PD_IRQ(0) Audio controller (ACR)
|
||||
*/
|
||||
#define IT8152_IRQ(x) (IRQ_BOARD_START + (x))
|
||||
#define IT8152_LAST_IRQ (IRQ_BOARD_START + 40)
|
||||
|
||||
/* IRQ-sources in 3 groups - local devices, LPC (serial), and external PCI */
|
||||
#define IT8152_LD_IRQ_COUNT 9
|
||||
#define IT8152_LP_IRQ_COUNT 16
|
||||
#define IT8152_PD_IRQ_COUNT 15
|
||||
|
||||
/* Priorities: */
|
||||
#define IT8152_PD_IRQ(i) IT8152_IRQ(i)
|
||||
#define IT8152_LP_IRQ(i) (IT8152_IRQ(i) + IT8152_PD_IRQ_COUNT)
|
||||
#define IT8152_LD_IRQ(i) (IT8152_IRQ(i) + IT8152_PD_IRQ_COUNT + IT8152_LP_IRQ_COUNT)
|
||||
|
||||
/* frequently used interrupts */
|
||||
#define IT8152_PCISERR IT8152_PD_IRQ(14)
|
||||
#define IT8152_H2PTADR IT8152_PD_IRQ(13)
|
||||
#define IT8152_H2PMAR IT8152_PD_IRQ(12)
|
||||
#define IT8152_PCI_INTD IT8152_PD_IRQ(11)
|
||||
#define IT8152_PCI_INTC IT8152_PD_IRQ(10)
|
||||
#define IT8152_PCI_INTB IT8152_PD_IRQ(9)
|
||||
#define IT8152_PCI_INTA IT8152_PD_IRQ(8)
|
||||
#define IT8152_CDMA_INT IT8152_PD_IRQ(2)
|
||||
#define IT8152_USB_INT IT8152_PD_IRQ(1)
|
||||
#define IT8152_AUDIO_INT IT8152_PD_IRQ(0)
|
||||
|
||||
struct pci_dev;
|
||||
struct pci_sys_data;
|
||||
|
||||
extern void it8152_irq_demux(struct irq_desc *desc);
|
||||
extern void it8152_init_irq(void);
|
||||
extern int it8152_pci_map_irq(const struct pci_dev *dev, u8 slot, u8 pin);
|
||||
extern int it8152_pci_setup(int nr, struct pci_sys_data *sys);
|
||||
extern struct pci_ops it8152_ops;
|
||||
|
||||
#endif /* __ASM_HARDWARE_IT8152_H */
|
||||
@ -78,7 +78,11 @@ static inline void set_fs(mm_segment_t fs)
|
||||
|
||||
#define segment_eq(a, b) ((a) == (b))
|
||||
|
||||
/* We use 33-bit arithmetic here... */
|
||||
/*
|
||||
* We use 33-bit arithmetic here. Success returns zero, failure returns
|
||||
* addr_limit. We take advantage that addr_limit will be zero for KERNEL_DS,
|
||||
* so this will always return success in that case.
|
||||
*/
|
||||
#define __range_ok(addr, size) ({ \
|
||||
unsigned long flag, roksum; \
|
||||
__chk_user_ptr(addr); \
|
||||
|
||||
@ -9,6 +9,7 @@
|
||||
#ifndef __ASM_VFP_H
|
||||
#define __ASM_VFP_H
|
||||
|
||||
#ifndef CONFIG_AS_VFP_VMRS_FPINST
|
||||
#define FPSID cr0
|
||||
#define FPSCR cr1
|
||||
#define MVFR1 cr6
|
||||
@ -16,6 +17,7 @@
|
||||
#define FPEXC cr8
|
||||
#define FPINST cr9
|
||||
#define FPINST2 cr10
|
||||
#endif
|
||||
|
||||
/* FPSID bits */
|
||||
#define FPSID_IMPLEMENTER_BIT (24)
|
||||
|
||||
@ -8,7 +8,16 @@
|
||||
|
||||
#include <asm/vfp.h>
|
||||
|
||||
@ Macros to allow building with old toolkits (with no VFP support)
|
||||
#ifdef CONFIG_AS_VFP_VMRS_FPINST
|
||||
.macro VFPFMRX, rd, sysreg, cond
|
||||
vmrs\cond \rd, \sysreg
|
||||
.endm
|
||||
|
||||
.macro VFPFMXR, sysreg, rd, cond
|
||||
vmsr\cond \sysreg, \rd
|
||||
.endm
|
||||
#else
|
||||
@ Macros to allow building with old toolkits (with no VFP support)
|
||||
.macro VFPFMRX, rd, sysreg, cond
|
||||
MRC\cond p10, 7, \rd, \sysreg, cr0, 0 @ FMRX \rd, \sysreg
|
||||
.endm
|
||||
@ -16,26 +25,29 @@
|
||||
.macro VFPFMXR, sysreg, rd, cond
|
||||
MCR\cond p10, 7, \rd, \sysreg, cr0, 0 @ FMXR \sysreg, \rd
|
||||
.endm
|
||||
#endif
|
||||
|
||||
@ read all the working registers back into the VFP
|
||||
.macro VFPFLDMIA, base, tmp
|
||||
.fpu vfpv2
|
||||
#if __LINUX_ARM_ARCH__ < 6
|
||||
LDC p11, cr0, [\base],#33*4 @ FLDMIAX \base!, {d0-d15}
|
||||
fldmiax \base!, {d0-d15}
|
||||
#else
|
||||
LDC p11, cr0, [\base],#32*4 @ FLDMIAD \base!, {d0-d15}
|
||||
vldmia \base!, {d0-d15}
|
||||
#endif
|
||||
#ifdef CONFIG_VFPv3
|
||||
.fpu vfpv3
|
||||
#if __LINUX_ARM_ARCH__ <= 6
|
||||
ldr \tmp, =elf_hwcap @ may not have MVFR regs
|
||||
ldr \tmp, [\tmp, #0]
|
||||
tst \tmp, #HWCAP_VFPD32
|
||||
ldclne p11, cr0, [\base],#32*4 @ FLDMIAD \base!, {d16-d31}
|
||||
vldmiane \base!, {d16-d31}
|
||||
addeq \base, \base, #32*4 @ step over unused register space
|
||||
#else
|
||||
VFPFMRX \tmp, MVFR0 @ Media and VFP Feature Register 0
|
||||
and \tmp, \tmp, #MVFR0_A_SIMD_MASK @ A_SIMD field
|
||||
cmp \tmp, #2 @ 32 x 64bit registers?
|
||||
ldcleq p11, cr0, [\base],#32*4 @ FLDMIAD \base!, {d16-d31}
|
||||
vldmiaeq \base!, {d16-d31}
|
||||
addne \base, \base, #32*4 @ step over unused register space
|
||||
#endif
|
||||
#endif
|
||||
@ -44,22 +56,23 @@
|
||||
@ write all the working registers out of the VFP
|
||||
.macro VFPFSTMIA, base, tmp
|
||||
#if __LINUX_ARM_ARCH__ < 6
|
||||
STC p11, cr0, [\base],#33*4 @ FSTMIAX \base!, {d0-d15}
|
||||
fstmiax \base!, {d0-d15}
|
||||
#else
|
||||
STC p11, cr0, [\base],#32*4 @ FSTMIAD \base!, {d0-d15}
|
||||
vstmia \base!, {d0-d15}
|
||||
#endif
|
||||
#ifdef CONFIG_VFPv3
|
||||
.fpu vfpv3
|
||||
#if __LINUX_ARM_ARCH__ <= 6
|
||||
ldr \tmp, =elf_hwcap @ may not have MVFR regs
|
||||
ldr \tmp, [\tmp, #0]
|
||||
tst \tmp, #HWCAP_VFPD32
|
||||
stclne p11, cr0, [\base],#32*4 @ FSTMIAD \base!, {d16-d31}
|
||||
vstmiane \base!, {d16-d31}
|
||||
addeq \base, \base, #32*4 @ step over unused register space
|
||||
#else
|
||||
VFPFMRX \tmp, MVFR0 @ Media and VFP Feature Register 0
|
||||
and \tmp, \tmp, #MVFR0_A_SIMD_MASK @ A_SIMD field
|
||||
cmp \tmp, #2 @ 32 x 64bit registers?
|
||||
stcleq p11, cr0, [\base],#32*4 @ FSTMIAD \base!, {d16-d31}
|
||||
vstmiaeq \base!, {d16-d31}
|
||||
addne \base, \base, #32*4 @ step over unused register space
|
||||
#endif
|
||||
#endif
|
||||
|
||||
@ -252,23 +252,6 @@ static void pci_fixup_cy82c693(struct pci_dev *dev)
|
||||
}
|
||||
DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_CONTAQ, PCI_DEVICE_ID_CONTAQ_82C693, pci_fixup_cy82c693);
|
||||
|
||||
static void pci_fixup_it8152(struct pci_dev *dev)
|
||||
{
|
||||
int i;
|
||||
/* fixup for ITE 8152 devices */
|
||||
/* FIXME: add defines for class 0x68000 and 0x80103 */
|
||||
if ((dev->class >> 8) == PCI_CLASS_BRIDGE_HOST ||
|
||||
dev->class == 0x68000 ||
|
||||
dev->class == 0x80103) {
|
||||
for (i = 0; i < PCI_NUM_RESOURCES; i++) {
|
||||
dev->resource[i].start = 0;
|
||||
dev->resource[i].end = 0;
|
||||
dev->resource[i].flags = 0;
|
||||
}
|
||||
}
|
||||
}
|
||||
DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_ITE, PCI_DEVICE_ID_ITE_8152, pci_fixup_it8152);
|
||||
|
||||
/*
|
||||
* If the bus contains any of these devices, then we must not turn on
|
||||
* parity checking of any kind. Currently this is CyberPro 20x0 only.
|
||||
|
||||
@ -22,6 +22,19 @@
|
||||
* A simple function epilogue looks like this:
|
||||
* ldm sp, {fp, sp, pc}
|
||||
*
|
||||
* When compiled with clang, pc and sp are not pushed. A simple function
|
||||
* prologue looks like this when built with clang:
|
||||
*
|
||||
* stmdb {..., fp, lr}
|
||||
* add fp, sp, #x
|
||||
* sub sp, sp, #y
|
||||
*
|
||||
* A simple function epilogue looks like this when built with clang:
|
||||
*
|
||||
* sub sp, fp, #x
|
||||
* ldm {..., fp, pc}
|
||||
*
|
||||
*
|
||||
* Note that with framepointer enabled, even the leaf functions have the same
|
||||
* prologue and epilogue, therefore we can ignore the LR value in this case.
|
||||
*/
|
||||
@ -34,6 +47,16 @@ int notrace unwind_frame(struct stackframe *frame)
|
||||
low = frame->sp;
|
||||
high = ALIGN(low, THREAD_SIZE);
|
||||
|
||||
#ifdef CONFIG_CC_IS_CLANG
|
||||
/* check current frame pointer is within bounds */
|
||||
if (fp < low + 4 || fp > high - 4)
|
||||
return -EINVAL;
|
||||
|
||||
frame->sp = frame->fp;
|
||||
frame->fp = *(unsigned long *)(fp);
|
||||
frame->pc = frame->lr;
|
||||
frame->lr = *(unsigned long *)(fp + 4);
|
||||
#else
|
||||
/* check current frame pointer is within bounds */
|
||||
if (fp < low + 12 || fp > high - 4)
|
||||
return -EINVAL;
|
||||
@ -42,6 +65,7 @@ int notrace unwind_frame(struct stackframe *frame)
|
||||
frame->fp = *(unsigned long *)(fp - 12);
|
||||
frame->sp = *(unsigned long *)(fp - 8);
|
||||
frame->pc = *(unsigned long *)(fp - 4);
|
||||
#endif
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
@ -74,8 +74,6 @@ struct cachepolicy {
|
||||
pteval_t pte;
|
||||
};
|
||||
|
||||
unsigned long kimage_voffset __ro_after_init;
|
||||
|
||||
static struct cachepolicy cache_policies[] __initdata = {
|
||||
{
|
||||
.policy = "uncached",
|
||||
@ -1654,9 +1652,6 @@ void __init paging_init(const struct machine_desc *mdesc)
|
||||
|
||||
empty_zero_page = virt_to_page(zero_page);
|
||||
__flush_dcache_page(NULL, empty_zero_page);
|
||||
|
||||
/* Compute the virt/idmap offset, mostly for the sake of KVM */
|
||||
kimage_voffset = (unsigned long)&kimage_voffset - virt_to_idmap(&kimage_voffset);
|
||||
}
|
||||
|
||||
void __init early_mm_init(const struct machine_desc *mdesc)
|
||||
|
||||
@ -5,7 +5,6 @@
|
||||
* VMA_VM_FLAGS
|
||||
* VM_EXEC
|
||||
*/
|
||||
#include <linux/const.h>
|
||||
#include <asm/asm-offsets.h>
|
||||
#include <asm/thread_info.h>
|
||||
|
||||
@ -31,8 +30,7 @@
|
||||
* act_mm - get current->active_mm
|
||||
*/
|
||||
.macro act_mm, rd
|
||||
bic \rd, sp, #(THREAD_SIZE - 1) & ~63
|
||||
bic \rd, \rd, #63
|
||||
get_thread_info \rd
|
||||
ldr \rd, [\rd, #TI_TASK]
|
||||
.if (TSK_ACTIVE_MM > IMM12_MASK)
|
||||
add \rd, \rd, #TSK_ACTIVE_MM & ~IMM12_MASK
|
||||
|
||||
@ -8,6 +8,4 @@
|
||||
# ccflags-y := -DDEBUG
|
||||
# asflags-y := -DDEBUG
|
||||
|
||||
KBUILD_AFLAGS :=$(KBUILD_AFLAGS:-msoft-float=-Wa,-mfpu=softvfp+vfp -mfloat-abi=soft)
|
||||
|
||||
obj-y += vfpmodule.o entry.o vfphw.o vfpsingle.o vfpdouble.o
|
||||
|
||||
@ -78,6 +78,7 @@
|
||||
ENTRY(vfp_support_entry)
|
||||
DBGSTR3 "instr %08x pc %08x state %p", r0, r2, r10
|
||||
|
||||
.fpu vfpv2
|
||||
ldr r3, [sp, #S_PSR] @ Neither lazy restore nor FP exceptions
|
||||
and r3, r3, #MODE_MASK @ are supported in kernel mode
|
||||
teq r3, #USR_MODE
|
||||
@ -258,11 +259,14 @@ vfp_current_hw_state_address:
|
||||
|
||||
ENTRY(vfp_get_float)
|
||||
tbl_branch r0, r3, #3
|
||||
.fpu vfpv2
|
||||
.irp dr,0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15
|
||||
1: mrc p10, 0, r0, c\dr, c0, 0 @ fmrs r0, s0
|
||||
1: vmov r0, s\dr
|
||||
ret lr
|
||||
.org 1b + 8
|
||||
1: mrc p10, 0, r0, c\dr, c0, 4 @ fmrs r0, s1
|
||||
.endr
|
||||
.irp dr,16,17,18,19,20,21,22,23,24,25,26,27,28,29,30,31
|
||||
1: vmov r0, s\dr
|
||||
ret lr
|
||||
.org 1b + 8
|
||||
.endr
|
||||
@ -270,11 +274,14 @@ ENDPROC(vfp_get_float)
|
||||
|
||||
ENTRY(vfp_put_float)
|
||||
tbl_branch r1, r3, #3
|
||||
.fpu vfpv2
|
||||
.irp dr,0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15
|
||||
1: mcr p10, 0, r0, c\dr, c0, 0 @ fmsr r0, s0
|
||||
1: vmov s\dr, r0
|
||||
ret lr
|
||||
.org 1b + 8
|
||||
1: mcr p10, 0, r0, c\dr, c0, 4 @ fmsr r0, s1
|
||||
.endr
|
||||
.irp dr,16,17,18,19,20,21,22,23,24,25,26,27,28,29,30,31
|
||||
1: vmov s\dr, r0
|
||||
ret lr
|
||||
.org 1b + 8
|
||||
.endr
|
||||
@ -282,15 +289,17 @@ ENDPROC(vfp_put_float)
|
||||
|
||||
ENTRY(vfp_get_double)
|
||||
tbl_branch r0, r3, #3
|
||||
.fpu vfpv2
|
||||
.irp dr,0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15
|
||||
1: fmrrd r0, r1, d\dr
|
||||
1: vmov r0, r1, d\dr
|
||||
ret lr
|
||||
.org 1b + 8
|
||||
.endr
|
||||
#ifdef CONFIG_VFPv3
|
||||
@ d16 - d31 registers
|
||||
.irp dr,0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15
|
||||
1: mrrc p11, 3, r0, r1, c\dr @ fmrrd r0, r1, d\dr
|
||||
.fpu vfpv3
|
||||
.irp dr,16,17,18,19,20,21,22,23,24,25,26,27,28,29,30,31
|
||||
1: vmov r0, r1, d\dr
|
||||
ret lr
|
||||
.org 1b + 8
|
||||
.endr
|
||||
@ -304,15 +313,17 @@ ENDPROC(vfp_get_double)
|
||||
|
||||
ENTRY(vfp_put_double)
|
||||
tbl_branch r2, r3, #3
|
||||
.fpu vfpv2
|
||||
.irp dr,0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15
|
||||
1: fmdrr d\dr, r0, r1
|
||||
1: vmov d\dr, r0, r1
|
||||
ret lr
|
||||
.org 1b + 8
|
||||
.endr
|
||||
#ifdef CONFIG_VFPv3
|
||||
.fpu vfpv3
|
||||
@ d16 - d31 registers
|
||||
.irp dr,0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15
|
||||
1: mcrr p11, 3, r0, r1, c\dr @ fmdrr r0, r1, d\dr
|
||||
.irp dr,16,17,18,19,20,21,22,23,24,25,26,27,28,29,30,31
|
||||
1: vmov d\dr, r0, r1
|
||||
ret lr
|
||||
.org 1b + 8
|
||||
.endr
|
||||
|
||||
@ -62,10 +62,23 @@
|
||||
#define FPSCR_C (1 << 29)
|
||||
#define FPSCR_V (1 << 28)
|
||||
|
||||
/*
|
||||
* Since we aren't building with -mfpu=vfp, we need to code
|
||||
* these instructions using their MRC/MCR equivalents.
|
||||
*/
|
||||
#ifdef CONFIG_AS_VFP_VMRS_FPINST
|
||||
|
||||
#define fmrx(_vfp_) ({ \
|
||||
u32 __v; \
|
||||
asm(".fpu vfpv2\n" \
|
||||
"vmrs %0, " #_vfp_ \
|
||||
: "=r" (__v) : : "cc"); \
|
||||
__v; \
|
||||
})
|
||||
|
||||
#define fmxr(_vfp_,_var_) \
|
||||
asm(".fpu vfpv2\n" \
|
||||
"vmsr " #_vfp_ ", %0" \
|
||||
: : "r" (_var_) : "cc")
|
||||
|
||||
#else
|
||||
|
||||
#define vfpreg(_vfp_) #_vfp_
|
||||
|
||||
#define fmrx(_vfp_) ({ \
|
||||
@ -79,6 +92,8 @@
|
||||
asm("mcr p10, 7, %0, " vfpreg(_vfp_) ", cr0, 0 @ fmxr " #_vfp_ ", %0" \
|
||||
: : "r" (_var_) : "cc")
|
||||
|
||||
#endif
|
||||
|
||||
u32 vfp_single_cpdo(u32 inst, u32 fpscr);
|
||||
u32 vfp_single_cprt(u32 inst, u32 fpscr, struct pt_regs *regs);
|
||||
|
||||
|
||||
Loading…
Reference in New Issue
Block a user