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OpenCloudOS-Kernel
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Merge branch 'open_state'

This commit is contained in:
Trond Myklebust 2017-08-15 11:54:13 -04:00
parent 35bdb09795 75e8c48b9e
commit 55cfcd1211
291 changed files with 4794 additions and 1387 deletions
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6
Documentation/fb/efifb.txt
View File

@ -27,5 +27,11 @@ You have to add the following kernel parameters in your elilo.conf:
Macbook Pro 17", iMac 20" :
video=efifb:i20
Accepted options:
nowc Don't map the framebuffer write combined. This can be used
to workaround side-effects and slowdowns on other CPU cores
when large amounts of console data are written.
--
Edgar Hucek <gimli@dark-green.com>

2
Documentation/gpio/gpio-legacy.txt
View File

@ -459,7 +459,7 @@ pin controller?
This is done by registering "ranges" of pins, which are essentially
cross-reference tables. These are described in
Documentation/pinctrl.txt
Documentation/driver-api/pinctl.rst
While the pin allocation is totally managed by the pinctrl subsystem,
gpio (under gpiolib) is still maintained by gpio drivers. It may happen

7
MAINTAINERS
View File

@ -1161,7 +1161,7 @@ M: Brendan Higgins <brendanhiggins@google.com>
R: Benjamin Herrenschmidt <benh@kernel.crashing.org>
R: Joel Stanley <joel@jms.id.au>
L: linux-i2c@vger.kernel.org
L: openbmc@lists.ozlabs.org
L: openbmc@lists.ozlabs.org (moderated for non-subscribers)
S: Maintained
F: drivers/irqchip/irq-aspeed-i2c-ic.c
F: drivers/i2c/busses/i2c-aspeed.c
@ -5834,7 +5834,7 @@ F: drivers/staging/greybus/spi.c
F: drivers/staging/greybus/spilib.c
F: drivers/staging/greybus/spilib.h
GREYBUS LOOBACK/TIME PROTOCOLS DRIVERS
GREYBUS LOOPBACK/TIME PROTOCOLS DRIVERS
M: Bryan O'Donoghue <pure.logic@nexus-software.ie>
S: Maintained
F: drivers/staging/greybus/loopback.c
@ -10383,7 +10383,7 @@ L: linux-gpio@vger.kernel.org
T: git git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl.git
S: Maintained
F: Documentation/devicetree/bindings/pinctrl/
F: Documentation/pinctrl.txt
F: Documentation/driver-api/pinctl.rst
F: drivers/pinctrl/
F: include/linux/pinctrl/
@ -14004,6 +14004,7 @@ F: drivers/block/virtio_blk.c
F: include/linux/virtio*.h
F: include/uapi/linux/virtio_*.h
F: drivers/crypto/virtio/
F: mm/balloon_compaction.c
VIRTIO CRYPTO DRIVER
M: Gonglei <arei.gonglei@huawei.com>

2
Makefile
View File

@ -1,7 +1,7 @@
VERSION = 4
PATCHLEVEL = 13
SUBLEVEL = 0
EXTRAVERSION = -rc4
EXTRAVERSION = -rc5
NAME = Fearless Coyote
# *DOCUMENTATION*

11
arch/arm/include/asm/tlb.h
View File

@ -148,7 +148,8 @@ static inline void tlb_flush_mmu(struct mmu_gather *tlb)
}
static inline void
tlb_gather_mmu(struct mmu_gather *tlb, struct mm_struct *mm, unsigned long start, unsigned long end)
arch_tlb_gather_mmu(struct mmu_gather *tlb, struct mm_struct *mm,
unsigned long start, unsigned long end)
{
tlb->mm = mm;
tlb->fullmm = !(start | (end+1));
@ -166,8 +167,14 @@ tlb_gather_mmu(struct mmu_gather *tlb, struct mm_struct *mm, unsigned long start
}
static inline void
tlb_finish_mmu(struct mmu_gather *tlb, unsigned long start, unsigned long end)
arch_tlb_finish_mmu(struct mmu_gather *tlb,
unsigned long start, unsigned long end, bool force)
{
if (force) {
tlb->range_start = start;
tlb->range_end = end;
}
tlb_flush_mmu(tlb);
/* keep the page table cache within bounds */

8
arch/ia64/include/asm/tlb.h
View File

@ -168,7 +168,8 @@ static inline void __tlb_alloc_page(struct mmu_gather *tlb)
static inline void
tlb_gather_mmu(struct mmu_gather *tlb, struct mm_struct *mm, unsigned long start, unsigned long end)
arch_tlb_gather_mmu(struct mmu_gather *tlb, struct mm_struct *mm,
unsigned long start, unsigned long end)
{
tlb->mm = mm;
tlb->max = ARRAY_SIZE(tlb->local);
@ -185,8 +186,11 @@ tlb_gather_mmu(struct mmu_gather *tlb, struct mm_struct *mm, unsigned long start
* collected.
*/
static inline void
tlb_finish_mmu(struct mmu_gather *tlb, unsigned long start, unsigned long end)
arch_tlb_finish_mmu(struct mmu_gather *tlb,
unsigned long start, unsigned long end, bool force)
{
if (force)
tlb->need_flush = 1;
/*
* Note: tlb->nr may be 0 at this point, so we can't rely on tlb->start_addr and
* tlb->end_addr.

2
arch/mips/Kconfig
View File

@ -2260,7 +2260,7 @@ config CPU_R4K_CACHE_TLB
config MIPS_MT_SMP
bool "MIPS MT SMP support (1 TC on each available VPE)"
depends on SYS_SUPPORTS_MULTITHREADING && !CPU_MIPSR6
depends on SYS_SUPPORTS_MULTITHREADING && !CPU_MIPSR6 && !CPU_MICROMIPS
select CPU_MIPSR2_IRQ_VI
select CPU_MIPSR2_IRQ_EI
select SYNC_R4K

15
arch/mips/Makefile
View File

@ -243,8 +243,21 @@ include arch/mips/Kbuild.platforms
ifdef CONFIG_PHYSICAL_START
load-y = $(CONFIG_PHYSICAL_START)
endif
entry-y = 0x$(shell $(NM) vmlinux 2>/dev/null \
entry-noisa-y = 0x$(shell $(NM) vmlinux 2>/dev/null \
| grep "\bkernel_entry\b" | cut -f1 -d \ )
ifdef CONFIG_CPU_MICROMIPS
#
# Set the ISA bit, since the kernel_entry symbol in the ELF will have it
# clear which would lead to images containing addresses which bootloaders may
# jump to as MIPS32 code.
#
entry-y = $(patsubst %0,%1,$(patsubst %2,%3,$(patsubst %4,%5, \
$(patsubst %6,%7,$(patsubst %8,%9,$(patsubst %a,%b, \
$(patsubst %c,%d,$(patsubst %e,%f,$(entry-noisa-y)))))))))
else
entry-y = $(entry-noisa-y)
endif
cflags-y += -I$(srctree)/arch/mips/include/asm/mach-generic
drivers-$(CONFIG_PCI) += arch/mips/pci/

2
arch/mips/boot/compressed/.gitignore vendored Normal file
View File

@ -0,0 +1,2 @@
ashldi3.c
bswapsi.c

2
arch/mips/cavium-octeon/octeon-usb.c
View File

@ -13,9 +13,9 @@
#include <linux/mutex.h>
#include <linux/delay.h>
#include <linux/of_platform.h>
#include <linux/io.h>
#include <asm/octeon/octeon.h>
#include <asm/octeon/cvmx-gpio-defs.h>
/* USB Control Register */
union cvm_usbdrd_uctl_ctl {

34
arch/mips/dec/int-handler.S
View File

@ -147,23 +147,12 @@
* Find irq with highest priority
*/
# open coded PTR_LA t1, cpu_mask_nr_tbl
#if (_MIPS_SZPTR == 32)
#if defined(CONFIG_32BIT) || defined(KBUILD_64BIT_SYM32)
# open coded la t1, cpu_mask_nr_tbl
lui t1, %hi(cpu_mask_nr_tbl)
addiu t1, %lo(cpu_mask_nr_tbl)
#endif
#if (_MIPS_SZPTR == 64)
# open coded dla t1, cpu_mask_nr_tbl
.set push
.set noat
lui t1, %highest(cpu_mask_nr_tbl)
lui AT, %hi(cpu_mask_nr_tbl)
daddiu t1, t1, %higher(cpu_mask_nr_tbl)
daddiu AT, AT, %lo(cpu_mask_nr_tbl)
dsll t1, 32
daddu t1, t1, AT
.set pop
#else
#error GCC `-msym32' option required for 64-bit DECstation builds
#endif
1: lw t2,(t1)
nop
@ -214,23 +203,12 @@
* Find irq with highest priority
*/
# open coded PTR_LA t1,asic_mask_nr_tbl
#if (_MIPS_SZPTR == 32)
#if defined(CONFIG_32BIT) || defined(KBUILD_64BIT_SYM32)
# open coded la t1, asic_mask_nr_tbl
lui t1, %hi(asic_mask_nr_tbl)
addiu t1, %lo(asic_mask_nr_tbl)
#endif
#if (_MIPS_SZPTR == 64)
# open coded dla t1, asic_mask_nr_tbl
.set push
.set noat
lui t1, %highest(asic_mask_nr_tbl)
lui AT, %hi(asic_mask_nr_tbl)
daddiu t1, t1, %higher(asic_mask_nr_tbl)
daddiu AT, AT, %lo(asic_mask_nr_tbl)
dsll t1, 32
daddu t1, t1, AT
.set pop
#else
#error GCC `-msym32' option required for 64-bit DECstation builds
#endif
2: lw t2,(t1)
nop

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

@ -9,6 +9,8 @@
#ifndef _ASM_CACHE_H
#define _ASM_CACHE_H
#include <kmalloc.h>
#define L1_CACHE_SHIFT CONFIG_MIPS_L1_CACHE_SHIFT
#define L1_CACHE_BYTES (1 << L1_CACHE_SHIFT)

3
arch/mips/include/asm/cpu-features.h
View File

@ -428,6 +428,9 @@
#ifndef cpu_scache_line_size
#define cpu_scache_line_size() cpu_data[0].scache.linesz
#endif
#ifndef cpu_tcache_line_size
#define cpu_tcache_line_size() cpu_data[0].tcache.linesz
#endif
#ifndef cpu_hwrena_impl_bits
#define cpu_hwrena_impl_bits 0

37
arch/mips/include/asm/octeon/cvmx-l2c-defs.h
View File

@ -33,6 +33,10 @@
#define CVMX_L2C_DBG (CVMX_ADD_IO_SEG(0x0001180080000030ull))
#define CVMX_L2C_CFG (CVMX_ADD_IO_SEG(0x0001180080000000ull))
#define CVMX_L2C_CTL (CVMX_ADD_IO_SEG(0x0001180080800000ull))
#define CVMX_L2C_ERR_TDTX(block_id) \
(CVMX_ADD_IO_SEG(0x0001180080A007E0ull) + ((block_id) & 3) * 0x40000ull)
#define CVMX_L2C_ERR_TTGX(block_id) \
(CVMX_ADD_IO_SEG(0x0001180080A007E8ull) + ((block_id) & 3) * 0x40000ull)
#define CVMX_L2C_LCKBASE (CVMX_ADD_IO_SEG(0x0001180080000058ull))
#define CVMX_L2C_LCKOFF (CVMX_ADD_IO_SEG(0x0001180080000060ull))
#define CVMX_L2C_PFCTL (CVMX_ADD_IO_SEG(0x0001180080000090ull))
@ -66,9 +70,40 @@
((offset) & 1) * 8)
#define CVMX_L2C_WPAR_PPX(offset) (CVMX_ADD_IO_SEG(0x0001180080840000ull) + \
((offset) & 31) * 8)
#define CVMX_L2D_FUS3 (CVMX_ADD_IO_SEG(0x00011800800007B8ull))
union cvmx_l2c_err_tdtx {
uint64_t u64;
struct cvmx_l2c_err_tdtx_s {
__BITFIELD_FIELD(uint64_t dbe:1,
__BITFIELD_FIELD(uint64_t sbe:1,
__BITFIELD_FIELD(uint64_t vdbe:1,
__BITFIELD_FIELD(uint64_t vsbe:1,
__BITFIELD_FIELD(uint64_t syn:10,
__BITFIELD_FIELD(uint64_t reserved_22_49:28,
__BITFIELD_FIELD(uint64_t wayidx:18,
__BITFIELD_FIELD(uint64_t reserved_2_3:2,
__BITFIELD_FIELD(uint64_t type:2,
;)))))))))
} s;
};
union cvmx_l2c_err_ttgx {
uint64_t u64;
struct cvmx_l2c_err_ttgx_s {
__BITFIELD_FIELD(uint64_t dbe:1,
__BITFIELD_FIELD(uint64_t sbe:1,
__BITFIELD_FIELD(uint64_t noway:1,
__BITFIELD_FIELD(uint64_t reserved_56_60:5,
__BITFIELD_FIELD(uint64_t syn:6,
__BITFIELD_FIELD(uint64_t reserved_22_49:28,
__BITFIELD_FIELD(uint64_t wayidx:15,
__BITFIELD_FIELD(uint64_t reserved_2_6:5,
__BITFIELD_FIELD(uint64_t type:2,
;)))))))))
} s;
};
union cvmx_l2c_cfg {
uint64_t u64;
struct cvmx_l2c_cfg_s {

60
arch/mips/include/asm/octeon/cvmx-l2d-defs.h Normal file
View File

@ -0,0 +1,60 @@
/***********************license start***************
* Author: Cavium Networks
*
* Contact: support@caviumnetworks.com
* This file is part of the OCTEON SDK
*
* Copyright (c) 2003-2017 Cavium, Inc.
*
* This file is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License, Version 2, as
* published by the Free Software Foundation.
*
* This file is distributed in the hope that it will be useful, but
* AS-IS and WITHOUT ANY WARRANTY; without even the implied warranty
* of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE, TITLE, or
* NONINFRINGEMENT. See the GNU General Public License for more
* details.
*
* You should have received a copy of the GNU General Public License
* along with this file; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
* or visit http://www.gnu.org/licenses/.
*
* This file may also be available under a different license from Cavium.
* Contact Cavium Networks for more information
***********************license end**************************************/
#ifndef __CVMX_L2D_DEFS_H__
#define __CVMX_L2D_DEFS_H__
#define CVMX_L2D_ERR (CVMX_ADD_IO_SEG(0x0001180080000010ull))
#define CVMX_L2D_FUS3 (CVMX_ADD_IO_SEG(0x00011800800007B8ull))
union cvmx_l2d_err {
uint64_t u64;
struct cvmx_l2d_err_s {
__BITFIELD_FIELD(uint64_t reserved_6_63:58,
__BITFIELD_FIELD(uint64_t bmhclsel:1,
__BITFIELD_FIELD(uint64_t ded_err:1,
__BITFIELD_FIELD(uint64_t sec_err:1,
__BITFIELD_FIELD(uint64_t ded_intena:1,
__BITFIELD_FIELD(uint64_t sec_intena:1,
__BITFIELD_FIELD(uint64_t ecc_ena:1,
;)))))))
} s;
};
union cvmx_l2d_fus3 {
uint64_t u64;
struct cvmx_l2d_fus3_s {
__BITFIELD_FIELD(uint64_t reserved_40_63:24,
__BITFIELD_FIELD(uint64_t ema_ctl:3,
__BITFIELD_FIELD(uint64_t reserved_34_36:3,
__BITFIELD_FIELD(uint64_t q3fus:34,
;))))
} s;
};
#endif

1
arch/mips/include/asm/octeon/cvmx.h
View File

@ -62,6 +62,7 @@ enum cvmx_mips_space {
#include <asm/octeon/cvmx-iob-defs.h>
#include <asm/octeon/cvmx-ipd-defs.h>
#include <asm/octeon/cvmx-l2c-defs.h>
#include <asm/octeon/cvmx-l2d-defs.h>
#include <asm/octeon/cvmx-l2t-defs.h>
#include <asm/octeon/cvmx-led-defs.h>
#include <asm/octeon/cvmx-mio-defs.h>

6
arch/mips/kernel/smp.c
View File

@ -376,9 +376,6 @@ asmlinkage void start_secondary(void)
cpumask_set_cpu(cpu, &cpu_coherent_mask);
notify_cpu_starting(cpu);
complete(&cpu_running);
synchronise_count_slave(cpu);
set_cpu_online(cpu, true);
set_cpu_sibling_map(cpu);
@ -386,6 +383,9 @@ asmlinkage void start_secondary(void)
calculate_cpu_foreign_map();
complete(&cpu_running);
synchronise_count_slave(cpu);
/*
* irq will be enabled in ->smp_finish(), enabling it too early
* is dangerous.

2
arch/mips/mm/uasm-mips.c
View File

@ -48,7 +48,7 @@
#include "uasm.c"
static const struct insn const insn_table[insn_invalid] = {
static const struct insn insn_table[insn_invalid] = {
[insn_addiu] = {M(addiu_op, 0, 0, 0, 0, 0), RS | RT | SIMM},
[insn_addu] = {M(spec_op, 0, 0, 0, 0, addu_op), RS | RT | RD},
[insn_and] = {M(spec_op, 0, 0, 0, 0, and_op), RS | RT | RD},

1950
arch/mips/net/ebpf_jit.c Normal file
View File

File diff suppressed because it is too large Load Diff

7
arch/mips/pci/pci.c
View File

@ -28,16 +28,15 @@ EXPORT_SYMBOL(PCIBIOS_MIN_MEM);
static int __init pcibios_set_cache_line_size(void)
{
struct cpuinfo_mips *c = &current_cpu_data;
unsigned int lsize;
/*
* Set PCI cacheline size to that of the highest level in the
* cache hierarchy.
*/
lsize = c->dcache.linesz;
lsize = c->scache.linesz ? : lsize;
lsize = c->tcache.linesz ? : lsize;
lsize = cpu_dcache_line_size();
lsize = cpu_scache_line_size() ? : lsize;
lsize = cpu_tcache_line_size() ? : lsize;
BUG_ON(!lsize);

6
arch/mips/vdso/gettimeofday.c
View File

@ -35,7 +35,8 @@ static __always_inline long gettimeofday_fallback(struct timeval *_tv,
" syscall\n"
: "=r" (ret), "=r" (error)
: "r" (tv), "r" (tz), "r" (nr)
: "memory");
: "$1", "$3", "$8", "$9", "$10", "$11", "$12", "$13",
"$14", "$15", "$24", "$25", "hi", "lo", "memory");
return error ? -ret : ret;
}
@ -55,7 +56,8 @@ static __always_inline long clock_gettime_fallback(clockid_t _clkid,
" syscall\n"
: "=r" (ret), "=r" (error)
: "r" (clkid), "r" (ts), "r" (nr)
: "memory");
: "$1", "$3", "$8", "$9", "$10", "$11", "$12", "$13",
"$14", "$15", "$24", "$25", "hi", "lo", "memory");
return error ? -ret : ret;
}

3
arch/powerpc/configs/powernv_defconfig
View File

@ -293,7 +293,8 @@ CONFIG_MAGIC_SYSRQ=y
CONFIG_DEBUG_KERNEL=y
CONFIG_DEBUG_STACK_USAGE=y
CONFIG_DEBUG_STACKOVERFLOW=y
CONFIG_LOCKUP_DETECTOR=y
CONFIG_SOFTLOCKUP_DETECTOR=y
CONFIG_HARDLOCKUP_DETECTOR=y
CONFIG_LATENCYTOP=y
CONFIG_SCHED_TRACER=y
CONFIG_BLK_DEV_IO_TRACE=y

3
arch/powerpc/configs/ppc64_defconfig
View File

@ -324,7 +324,8 @@ CONFIG_MAGIC_SYSRQ=y
CONFIG_DEBUG_KERNEL=y
CONFIG_DEBUG_STACK_USAGE=y
CONFIG_DEBUG_STACKOVERFLOW=y
CONFIG_LOCKUP_DETECTOR=y
CONFIG_SOFTLOCKUP_DETECTOR=y
CONFIG_HARDLOCKUP_DETECTOR=y
CONFIG_DEBUG_MUTEXES=y
CONFIG_LATENCYTOP=y
CONFIG_SCHED_TRACER=y

3
arch/powerpc/configs/pseries_defconfig
View File

@ -291,7 +291,8 @@ CONFIG_MAGIC_SYSRQ=y
CONFIG_DEBUG_KERNEL=y
CONFIG_DEBUG_STACK_USAGE=y
CONFIG_DEBUG_STACKOVERFLOW=y
CONFIG_LOCKUP_DETECTOR=y
CONFIG_SOFTLOCKUP_DETECTOR=y
CONFIG_HARDLOCKUP_DETECTOR=y
CONFIG_LATENCYTOP=y
CONFIG_SCHED_TRACER=y
CONFIG_BLK_DEV_IO_TRACE=y

60
arch/powerpc/kernel/entry_64.S
View File

@ -223,17 +223,27 @@ system_call_exit:
andi. r0,r9,(_TIF_SYSCALL_DOTRACE|_TIF_SINGLESTEP|_TIF_USER_WORK_MASK|_TIF_PERSYSCALL_MASK)
bne- .Lsyscall_exit_work
/* If MSR_FP and MSR_VEC are set in user msr, then no need to restore */
li r7,MSR_FP
andi. r0,r8,MSR_FP
beq 2f
#ifdef CONFIG_ALTIVEC
oris r7,r7,MSR_VEC@h
andis. r0,r8,MSR_VEC@h
bne 3f
#endif
and r0,r8,r7
cmpd r0,r7
bne .Lsyscall_restore_math
.Lsyscall_restore_math_cont:
2: addi r3,r1,STACK_FRAME_OVERHEAD
#ifdef CONFIG_PPC_BOOK3S
li r10,MSR_RI
mtmsrd r10,1 /* Restore RI */
#endif
bl restore_math
#ifdef CONFIG_PPC_BOOK3S
li r11,0
mtmsrd r11,1
#endif
ld r8,_MSR(r1)
ld r3,RESULT(r1)
li r11,-MAX_ERRNO
cmpld r3,r11
3: cmpld r3,r11
ld r5,_CCR(r1)
bge- .Lsyscall_error
.Lsyscall_error_cont:
@ -267,40 +277,6 @@ END_FTR_SECTION_IFSET(CPU_FTR_HAS_PPR)
std r5,_CCR(r1)
b .Lsyscall_error_cont
.Lsyscall_restore_math:
/*
* Some initial tests from restore_math to avoid the heavyweight
* C code entry and MSR manipulations.
*/
LOAD_REG_IMMEDIATE(r0, MSR_TS_MASK)
and. r0,r0,r8
bne 1f
ld r7,PACACURRENT(r13)
lbz r0,THREAD+THREAD_LOAD_FP(r7)
#ifdef CONFIG_ALTIVEC
lbz r6,THREAD+THREAD_LOAD_VEC(r7)
add r0,r0,r6
#endif
cmpdi r0,0
beq .Lsyscall_restore_math_cont
1: addi r3,r1,STACK_FRAME_OVERHEAD
#ifdef CONFIG_PPC_BOOK3S
li r10,MSR_RI
mtmsrd r10,1 /* Restore RI */
#endif
bl restore_math
#ifdef CONFIG_PPC_BOOK3S
li r11,0
mtmsrd r11,1
#endif
/* Restore volatiles, reload MSR from updated one */
ld r8,_MSR(r1)
ld r3,RESULT(r1)
li r11,-MAX_ERRNO
b .Lsyscall_restore_math_cont
/* Traced system call support */
.Lsyscall_dotrace:
bl save_nvgprs

4
arch/powerpc/kernel/process.c
View File

@ -511,10 +511,6 @@ void restore_math(struct pt_regs *regs)
{
unsigned long msr;
/*
* Syscall exit makes a similar initial check before branching
* to restore_math. Keep them in synch.
*/
if (!msr_tm_active(regs->msr) &&
!current->thread.load_fp && !loadvec(current->thread))
return;

6
arch/powerpc/kernel/smp.c
View File

@ -351,7 +351,7 @@ static void nmi_ipi_lock_start(unsigned long *flags)
hard_irq_disable();
while (atomic_cmpxchg(&__nmi_ipi_lock, 0, 1) == 1) {
raw_local_irq_restore(*flags);
cpu_relax();
spin_until_cond(atomic_read(&__nmi_ipi_lock) == 0);
raw_local_irq_save(*flags);
hard_irq_disable();
}
@ -360,7 +360,7 @@ static void nmi_ipi_lock_start(unsigned long *flags)
static void nmi_ipi_lock(void)
{
while (atomic_cmpxchg(&__nmi_ipi_lock, 0, 1) == 1)
cpu_relax();
spin_until_cond(atomic_read(&__nmi_ipi_lock) == 0);
}
static void nmi_ipi_unlock(void)
@ -475,7 +475,7 @@ int smp_send_nmi_ipi(int cpu, void (*fn)(struct pt_regs *), u64 delay_us)
nmi_ipi_lock_start(&flags);
while (nmi_ipi_busy_count) {
nmi_ipi_unlock_end(&flags);
cpu_relax();
spin_until_cond(nmi_ipi_busy_count == 0);
nmi_ipi_lock_start(&flags);
}

49
arch/powerpc/kernel/watchdog.c
View File

@ -71,15 +71,20 @@ static inline void wd_smp_lock(unsigned long *flags)
* This may be called from low level interrupt handlers at some
* point in future.
*/
local_irq_save(*flags);
while (unlikely(test_and_set_bit_lock(0, &__wd_smp_lock)))
cpu_relax();
raw_local_irq_save(*flags);
hard_irq_disable(); /* Make it soft-NMI safe */
while (unlikely(test_and_set_bit_lock(0, &__wd_smp_lock))) {
raw_local_irq_restore(*flags);
spin_until_cond(!test_bit(0, &__wd_smp_lock));
raw_local_irq_save(*flags);
hard_irq_disable();
}
}
static inline void wd_smp_unlock(unsigned long *flags)
{
clear_bit_unlock(0, &__wd_smp_lock);
local_irq_restore(*flags);
raw_local_irq_restore(*flags);
}
static void wd_lockup_ipi(struct pt_regs *regs)
@ -96,10 +101,10 @@ static void wd_lockup_ipi(struct pt_regs *regs)
nmi_panic(regs, "Hard LOCKUP");
}
static void set_cpu_stuck(int cpu, u64 tb)
static void set_cpumask_stuck(const struct cpumask *cpumask, u64 tb)
{
cpumask_set_cpu(cpu, &wd_smp_cpus_stuck);
cpumask_clear_cpu(cpu, &wd_smp_cpus_pending);
cpumask_or(&wd_smp_cpus_stuck, &wd_smp_cpus_stuck, cpumask);
cpumask_andnot(&wd_smp_cpus_pending, &wd_smp_cpus_pending, cpumask);
if (cpumask_empty(&wd_smp_cpus_pending)) {
wd_smp_last_reset_tb = tb;
cpumask_andnot(&wd_smp_cpus_pending,
@ -107,6 +112,10 @@ static void set_cpu_stuck(int cpu, u64 tb)
&wd_smp_cpus_stuck);
}
}
static void set_cpu_stuck(int cpu, u64 tb)
{
set_cpumask_stuck(cpumask_of(cpu), tb);
}
static void watchdog_smp_panic(int cpu, u64 tb)
{
@ -135,11 +144,9 @@ static void watchdog_smp_panic(int cpu, u64 tb)
}
smp_flush_nmi_ipi(1000000);
/* Take the stuck CPU out of the watch group */
for_each_cpu(c, &wd_smp_cpus_pending)
set_cpu_stuck(c, tb);
/* Take the stuck CPUs out of the watch group */
set_cpumask_stuck(&wd_smp_cpus_pending, tb);
out:
wd_smp_unlock(&flags);
printk_safe_flush();
@ -152,6 +159,11 @@ out:
if (hardlockup_panic)
nmi_panic(NULL, "Hard LOCKUP");
return;
out:
wd_smp_unlock(&flags);
}
static void wd_smp_clear_cpu_pending(int cpu, u64 tb)
@ -258,9 +270,11 @@ static void wd_timer_fn(unsigned long data)
void arch_touch_nmi_watchdog(void)
{
unsigned long ticks = tb_ticks_per_usec * wd_timer_period_ms * 1000;
int cpu = smp_processor_id();
watchdog_timer_interrupt(cpu);
if (get_tb() - per_cpu(wd_timer_tb, cpu) >= ticks)
watchdog_timer_interrupt(cpu);
}
EXPORT_SYMBOL(arch_touch_nmi_watchdog);
@ -283,6 +297,8 @@ static void stop_watchdog_timer_on(unsigned int cpu)
static int start_wd_on_cpu(unsigned int cpu)
{
unsigned long flags;
if (cpumask_test_cpu(cpu, &wd_cpus_enabled)) {
WARN_ON(1);
return 0;
@ -297,12 +313,14 @@ static int start_wd_on_cpu(unsigned int cpu)
if (!cpumask_test_cpu(cpu, &watchdog_cpumask))
return 0;
wd_smp_lock(&flags);
cpumask_set_cpu(cpu, &wd_cpus_enabled);
if (cpumask_weight(&wd_cpus_enabled) == 1) {
cpumask_set_cpu(cpu, &wd_smp_cpus_pending);
wd_smp_last_reset_tb = get_tb();
}
smp_wmb();
wd_smp_unlock(&flags);
start_watchdog_timer_on(cpu);
return 0;
@ -310,12 +328,17 @@ static int start_wd_on_cpu(unsigned int cpu)
static int stop_wd_on_cpu(unsigned int cpu)
{
unsigned long flags;
if (!cpumask_test_cpu(cpu, &wd_cpus_enabled))
return 0; /* Can happen in CPU unplug case */
stop_watchdog_timer_on(cpu);
wd_smp_lock(&flags);
cpumask_clear_cpu(cpu, &wd_cpus_enabled);
wd_smp_unlock(&flags);
wd_smp_clear_cpu_pending(cpu, get_tb());
return 0;

41
arch/powerpc/platforms/powernv/idle.c
View File

@ -56,6 +56,7 @@ u64 pnv_first_deep_stop_state = MAX_STOP_STATE;
*/
static u64 pnv_deepest_stop_psscr_val;
static u64 pnv_deepest_stop_psscr_mask;
static u64 pnv_deepest_stop_flag;
static bool deepest_stop_found;
static int pnv_save_sprs_for_deep_states(void)
@ -185,8 +186,40 @@ static void pnv_alloc_idle_core_states(void)
update_subcore_sibling_mask();
if (supported_cpuidle_states & OPAL_PM_LOSE_FULL_CONTEXT)
pnv_save_sprs_for_deep_states();
if (supported_cpuidle_states & OPAL_PM_LOSE_FULL_CONTEXT) {
int rc = pnv_save_sprs_for_deep_states();
if (likely(!rc))
return;
/*
* The stop-api is unable to restore hypervisor
* resources on wakeup from platform idle states which
* lose full context. So disable such states.
*/
supported_cpuidle_states &= ~OPAL_PM_LOSE_FULL_CONTEXT;
pr_warn("cpuidle-powernv: Disabling idle states that lose full context\n");
pr_warn("cpuidle-powernv: Idle power-savings, CPU-Hotplug affected\n");
if (cpu_has_feature(CPU_FTR_ARCH_300) &&
(pnv_deepest_stop_flag & OPAL_PM_LOSE_FULL_CONTEXT)) {
/*
* Use the default stop state for CPU-Hotplug
* if available.
*/
if (default_stop_found) {
pnv_deepest_stop_psscr_val =
pnv_default_stop_val;
pnv_deepest_stop_psscr_mask =
pnv_default_stop_mask;
pr_warn("cpuidle-powernv: Offlined CPUs will stop with psscr = 0x%016llx\n",
pnv_deepest_stop_psscr_val);
} else { /* Fallback to snooze loop for CPU-Hotplug */
deepest_stop_found = false;
pr_warn("cpuidle-powernv: Offlined CPUs will busy wait\n");
}
}
}
}
u32 pnv_get_supported_cpuidle_states(void)
@ -375,7 +408,8 @@ unsigned long pnv_cpu_offline(unsigned int cpu)
pnv_deepest_stop_psscr_val;
srr1 = power9_idle_stop(psscr);
} else if (idle_states & OPAL_PM_WINKLE_ENABLED) {
} else if ((idle_states & OPAL_PM_WINKLE_ENABLED) &&
(idle_states & OPAL_PM_LOSE_FULL_CONTEXT)) {
srr1 = power7_idle_insn(PNV_THREAD_WINKLE);
} else if ((idle_states & OPAL_PM_SLEEP_ENABLED) ||
(idle_states & OPAL_PM_SLEEP_ENABLED_ER1)) {
@ -553,6 +587,7 @@ static int __init pnv_power9_idle_init(struct device_node *np, u32 *flags,
max_residency_ns = residency_ns[i];
pnv_deepest_stop_psscr_val = psscr_val[i];
pnv_deepest_stop_psscr_mask = psscr_mask[i];
pnv_deepest_stop_flag = flags[i];
deepest_stop_found = true;
}

17
arch/s390/include/asm/tlb.h
View File

@ -47,10 +47,9 @@ struct mmu_table_batch {
extern void tlb_table_flush(struct mmu_gather *tlb);
extern void tlb_remove_table(struct mmu_gather *tlb, void *table);
static inline void tlb_gather_mmu(struct mmu_gather *tlb,
struct mm_struct *mm,
unsigned long start,
unsigned long end)
static inline void
arch_tlb_gather_mmu(struct mmu_gather *tlb, struct mm_struct *mm,
unsigned long start, unsigned long end)
{
tlb->mm = mm;
tlb->start = start;
@ -76,9 +75,15 @@ static inline void tlb_flush_mmu(struct mmu_gather *tlb)
tlb_flush_mmu_free(tlb);
}
static inline void tlb_finish_mmu(struct mmu_gather *tlb,
unsigned long start, unsigned long end)
static inline void
arch_tlb_finish_mmu(struct mmu_gather *tlb,
unsigned long start, unsigned long end, bool force)
{
if (force) {
tlb->start = start;
tlb->end = end;
}
tlb_flush_mmu(tlb);
}

3
arch/s390/net/bpf_jit_comp.c
View File

@ -1253,7 +1253,8 @@ static int bpf_jit_prog(struct bpf_jit *jit, struct bpf_prog *fp)
insn_count = bpf_jit_insn(jit, fp, i);
if (insn_count < 0)
return -1;
jit->addrs[i + 1] = jit->prg; /* Next instruction address */
/* Next instruction address */
jit->addrs[i + insn_count] = jit->prg;
}
bpf_jit_epilogue(jit);

8
arch/sh/include/asm/tlb.h
View File

@ -36,7 +36,8 @@ static inline void init_tlb_gather(struct mmu_gather *tlb)
}
static inline void
tlb_gather_mmu(struct mmu_gather *tlb, struct mm_struct *mm, unsigned long start, unsigned long end)
arch_tlb_gather_mmu(struct mmu_gather *tlb, struct mm_struct *mm,
unsigned long start, unsigned long end)
{
tlb->mm = mm;
tlb->start = start;
@ -47,9 +48,10 @@ tlb_gather_mmu(struct mmu_gather *tlb, struct mm_struct *mm, unsigned long start
}
static inline void
tlb_finish_mmu(struct mmu_gather *tlb, unsigned long start, unsigned long end)
arch_tlb_finish_mmu(struct mmu_gather *tlb,
unsigned long start, unsigned long end, bool force)
{
if (tlb->fullmm)
if (tlb->fullmm || force)
flush_tlb_mm(tlb->mm);
/* keep the page table cache within bounds */

16
arch/sparc/include/asm/spitfire.h
View File

@ -47,10 +47,26 @@
#define SUN4V_CHIP_NIAGARA5 0x05
#define SUN4V_CHIP_SPARC_M6 0x06
#define SUN4V_CHIP_SPARC_M7 0x07
#define SUN4V_CHIP_SPARC_M8 0x08
#define SUN4V_CHIP_SPARC64X 0x8a
#define SUN4V_CHIP_SPARC_SN 0x8b
#define SUN4V_CHIP_UNKNOWN 0xff
/*
* The following CPU_ID_xxx constants are used
* to identify the CPU type in the setup phase
* (see head_64.S)
*/
#define CPU_ID_NIAGARA1 ('1')
#define CPU_ID_NIAGARA2 ('2')
#define CPU_ID_NIAGARA3 ('3')
#define CPU_ID_NIAGARA4 ('4')
#define CPU_ID_NIAGARA5 ('5')
#define CPU_ID_M6 ('6')
#define CPU_ID_M7 ('7')
#define CPU_ID_M8 ('8')
#define CPU_ID_SONOMA1 ('N')
#ifndef __ASSEMBLY__
enum ultra_tlb_layout {

6
arch/sparc/kernel/cpu.c
View File

@ -506,6 +506,12 @@ static void __init sun4v_cpu_probe(void)
sparc_pmu_type = "sparc-m7";
break;
case SUN4V_CHIP_SPARC_M8:
sparc_cpu_type = "SPARC-M8";
sparc_fpu_type = "SPARC-M8 integrated FPU";
sparc_pmu_type = "sparc-m8";
break;
case SUN4V_CHIP_SPARC_SN:
sparc_cpu_type = "SPARC-SN";
sparc_fpu_type = "SPARC-SN integrated FPU";

1
arch/sparc/kernel/cpumap.c
View File

@ -328,6 +328,7 @@ static int iterate_cpu(struct cpuinfo_tree *t, unsigned int root_index)
case SUN4V_CHIP_NIAGARA5:
case SUN4V_CHIP_SPARC_M6:
case SUN4V_CHIP_SPARC_M7:
case SUN4V_CHIP_SPARC_M8:
case SUN4V_CHIP_SPARC_SN:
case SUN4V_CHIP_SPARC64X:
rover_inc_table = niagara_iterate_method;

22
arch/sparc/kernel/head_64.S
View File

@ -424,22 +424,25 @@ EXPORT_SYMBOL(sun4v_chip_type)
nop
70: ldub [%g1 + 7], %g2
cmp %g2, '3'
cmp %g2, CPU_ID_NIAGARA3
be,pt %xcc, 5f
mov SUN4V_CHIP_NIAGARA3, %g4
cmp %g2, '4'
cmp %g2, CPU_ID_NIAGARA4
be,pt %xcc, 5f
mov SUN4V_CHIP_NIAGARA4, %g4
cmp %g2, '5'
cmp %g2, CPU_ID_NIAGARA5
be,pt %xcc, 5f
mov SUN4V_CHIP_NIAGARA5, %g4
cmp %g2, '6'
cmp %g2, CPU_ID_M6
be,pt %xcc, 5f
mov SUN4V_CHIP_SPARC_M6, %g4
cmp %g2, '7'
cmp %g2, CPU_ID_M7
be,pt %xcc, 5f
mov SUN4V_CHIP_SPARC_M7, %g4
cmp %g2, 'N'
cmp %g2, CPU_ID_M8
be,pt %xcc, 5f
mov SUN4V_CHIP_SPARC_M8, %g4
cmp %g2, CPU_ID_SONOMA1
be,pt %xcc, 5f
mov SUN4V_CHIP_SPARC_SN, %g4
ba,pt %xcc, 49f
@ -448,10 +451,10 @@ EXPORT_SYMBOL(sun4v_chip_type)
91: sethi %hi(prom_cpu_compatible), %g1
or %g1, %lo(prom_cpu_compatible), %g1
ldub [%g1 + 17], %g2
cmp %g2, '1'
cmp %g2, CPU_ID_NIAGARA1
be,pt %xcc, 5f
mov SUN4V_CHIP_NIAGARA1, %g4
cmp %g2, '2'
cmp %g2, CPU_ID_NIAGARA2
be,pt %xcc, 5f
mov SUN4V_CHIP_NIAGARA2, %g4
@ -600,6 +603,9 @@ niagara_tlb_fixup:
be,pt %xcc, niagara4_patch
nop
cmp %g1, SUN4V_CHIP_SPARC_M7
be,pt %xcc, niagara4_patch
nop
cmp %g1, SUN4V_CHIP_SPARC_M8
be,pt %xcc, niagara4_patch
nop
cmp %g1, SUN4V_CHIP_SPARC_SN

15
arch/sparc/kernel/setup_64.c
View File

@ -288,10 +288,17 @@ static void __init sun4v_patch(void)
sun4v_patch_2insn_range(&__sun4v_2insn_patch,
&__sun4v_2insn_patch_end);
if (sun4v_chip_type == SUN4V_CHIP_SPARC_M7 ||
sun4v_chip_type == SUN4V_CHIP_SPARC_SN)
switch (sun4v_chip_type) {
case SUN4V_CHIP_SPARC_M7:
case SUN4V_CHIP_SPARC_M8:
case SUN4V_CHIP_SPARC_SN:
sun_m7_patch_2insn_range(&__sun_m7_2insn_patch,
&__sun_m7_2insn_patch_end);
break;
default:
break;
}
sun4v_hvapi_init();
}
@ -529,6 +536,7 @@ static void __init init_sparc64_elf_hwcap(void)
sun4v_chip_type == SUN4V_CHIP_NIAGARA5 ||
sun4v_chip_type == SUN4V_CHIP_SPARC_M6 ||
sun4v_chip_type == SUN4V_CHIP_SPARC_M7 ||
sun4v_chip_type == SUN4V_CHIP_SPARC_M8 ||
sun4v_chip_type == SUN4V_CHIP_SPARC_SN ||
sun4v_chip_type == SUN4V_CHIP_SPARC64X)
cap |= HWCAP_SPARC_BLKINIT;
@ -538,6 +546,7 @@ static void __init init_sparc64_elf_hwcap(void)
sun4v_chip_type == SUN4V_CHIP_NIAGARA5 ||
sun4v_chip_type == SUN4V_CHIP_SPARC_M6 ||
sun4v_chip_type == SUN4V_CHIP_SPARC_M7 ||
sun4v_chip_type == SUN4V_CHIP_SPARC_M8 ||
sun4v_chip_type == SUN4V_CHIP_SPARC_SN ||
sun4v_chip_type == SUN4V_CHIP_SPARC64X)
cap |= HWCAP_SPARC_N2;
@ -568,6 +577,7 @@ static void __init init_sparc64_elf_hwcap(void)
sun4v_chip_type == SUN4V_CHIP_NIAGARA5 ||
sun4v_chip_type == SUN4V_CHIP_SPARC_M6 ||
sun4v_chip_type == SUN4V_CHIP_SPARC_M7 ||
sun4v_chip_type == SUN4V_CHIP_SPARC_M8 ||
sun4v_chip_type == SUN4V_CHIP_SPARC_SN ||
sun4v_chip_type == SUN4V_CHIP_SPARC64X)
cap |= (AV_SPARC_VIS | AV_SPARC_VIS2 |
@ -578,6 +588,7 @@ static void __init init_sparc64_elf_hwcap(void)
sun4v_chip_type == SUN4V_CHIP_NIAGARA5 ||
sun4v_chip_type == SUN4V_CHIP_SPARC_M6 ||
sun4v_chip_type == SUN4V_CHIP_SPARC_M7 ||
sun4v_chip_type == SUN4V_CHIP_SPARC_M8 ||
sun4v_chip_type == SUN4V_CHIP_SPARC_SN ||
sun4v_chip_type == SUN4V_CHIP_SPARC64X)
cap |= (AV_SPARC_VIS3 | AV_SPARC_HPC |

14
arch/sparc/mm/init_64.c
View File

@ -1944,12 +1944,22 @@ static void __init setup_page_offset(void)
break;
case SUN4V_CHIP_SPARC_M7:
case SUN4V_CHIP_SPARC_SN:
default:
/* M7 and later support 52-bit virtual addresses. */
sparc64_va_hole_top = 0xfff8000000000000UL;
sparc64_va_hole_bottom = 0x0008000000000000UL;
max_phys_bits = 49;
break;
case SUN4V_CHIP_SPARC_M8:
default:
/* M8 and later support 54-bit virtual addresses.
* However, restricting M8 and above VA bits to 53
* as 4-level page table cannot support more than
* 53 VA bits.
*/
sparc64_va_hole_top = 0xfff0000000000000UL;
sparc64_va_hole_bottom = 0x0010000000000000UL;
max_phys_bits = 51;
break;
}
}
@ -2161,6 +2171,7 @@ static void __init sun4v_linear_pte_xor_finalize(void)
*/
switch (sun4v_chip_type) {
case SUN4V_CHIP_SPARC_M7:
case SUN4V_CHIP_SPARC_M8:
case SUN4V_CHIP_SPARC_SN:
pagecv_flag = 0x00;
break;
@ -2313,6 +2324,7 @@ void __init paging_init(void)
*/
switch (sun4v_chip_type) {
case SUN4V_CHIP_SPARC_M7:
case SUN4V_CHIP_SPARC_M8:
case SUN4V_CHIP_SPARC_SN:
page_cache4v_flag = _PAGE_CP_4V;
break;

13
arch/um/include/asm/tlb.h
View File

@ -45,7 +45,8 @@ static inline void init_tlb_gather(struct mmu_gather *tlb)
}
static inline void
tlb_gather_mmu(struct mmu_gather *tlb, struct mm_struct *mm, unsigned long start, unsigned long end)
arch_tlb_gather_mmu(struct mmu_gather *tlb, struct mm_struct *mm,
unsigned long start, unsigned long end)
{
tlb->mm = mm;
tlb->start = start;
@ -80,13 +81,19 @@ tlb_flush_mmu(struct mmu_gather *tlb)
tlb_flush_mmu_free(tlb);
}
/* tlb_finish_mmu
/* arch_tlb_finish_mmu
* Called at the end of the shootdown operation to free up any resources
* that were required.
*/
static inline void
tlb_finish_mmu(struct mmu_gather *tlb, unsigned long start, unsigned long end)
arch_tlb_finish_mmu(struct mmu_gather *tlb,
unsigned long start, unsigned long end, bool force)
{
if (force) {
tlb->start = start;
tlb->end = end;
tlb->need_flush = 1;
}
tlb_flush_mmu(tlb);
/* keep the page table cache within bounds */

10
arch/x86/include/asm/hypervisor.h
View File

@ -43,6 +43,9 @@ struct hypervisor_x86 {
/* pin current vcpu to specified physical cpu (run rarely) */
void (*pin_vcpu)(int);
/* called during init_mem_mapping() to setup early mappings. */
void (*init_mem_mapping)(void);
};
extern const struct hypervisor_x86 *x86_hyper;
@ -57,8 +60,15 @@ extern const struct hypervisor_x86 x86_hyper_kvm;
extern void init_hypervisor_platform(void);
extern bool hypervisor_x2apic_available(void);
extern void hypervisor_pin_vcpu(int cpu);
static inline void hypervisor_init_mem_mapping(void)
{
if (x86_hyper && x86_hyper->init_mem_mapping)
x86_hyper->init_mem_mapping();
}
#else
static inline void init_hypervisor_platform(void) { }
static inline bool hypervisor_x2apic_available(void) { return false; }
static inline void hypervisor_init_mem_mapping(void) { }
#endif /* CONFIG_HYPERVISOR_GUEST */
#endif /* _ASM_X86_HYPERVISOR_H */

3
arch/x86/mm/init.c
View File

@ -18,6 +18,7 @@
#include <asm/dma.h> /* for MAX_DMA_PFN */
#include <asm/microcode.h>
#include <asm/kaslr.h>
#include <asm/hypervisor.h>
/*
* We need to define the tracepoints somewhere, and tlb.c
@ -636,6 +637,8 @@ void __init init_mem_mapping(void)
load_cr3(swapper_pg_dir);
__flush_tlb_all();
hypervisor_init_mem_mapping();
early_memtest(0, max_pfn_mapped << PAGE_SHIFT);
}

59
arch/x86/xen/enlighten_hvm.c
View File

@ -12,6 +12,7 @@
#include <asm/setup.h>
#include <asm/hypervisor.h>
#include <asm/e820/api.h>
#include <asm/early_ioremap.h>
#include <asm/xen/cpuid.h>
#include <asm/xen/hypervisor.h>
@ -21,38 +22,50 @@
#include "mmu.h"
#include "smp.h"
void __ref xen_hvm_init_shared_info(void)
static unsigned long shared_info_pfn;
void xen_hvm_init_shared_info(void)
{
struct xen_add_to_physmap xatp;
u64 pa;
if (HYPERVISOR_shared_info == &xen_dummy_shared_info) {
/*
* Search for a free page starting at 4kB physical address.
* Low memory is preferred to avoid an EPT large page split up
* by the mapping.
* Starting below X86_RESERVE_LOW (usually 64kB) is fine as
* the BIOS used for HVM guests is well behaved and won't
* clobber memory other than the first 4kB.
*/
for (pa = PAGE_SIZE;
!e820__mapped_all(pa, pa + PAGE_SIZE, E820_TYPE_RAM) ||
memblock_is_reserved(pa);
pa += PAGE_SIZE)
;
memblock_reserve(pa, PAGE_SIZE);
HYPERVISOR_shared_info = __va(pa);
}
xatp.domid = DOMID_SELF;
xatp.idx = 0;
xatp.space = XENMAPSPACE_shared_info;
xatp.gpfn = virt_to_pfn(HYPERVISOR_shared_info);
xatp.gpfn = shared_info_pfn;
if (HYPERVISOR_memory_op(XENMEM_add_to_physmap, &xatp))
BUG();
}
static void __init reserve_shared_info(void)
{
u64 pa;
/*
* Search for a free page starting at 4kB physical address.
* Low memory is preferred to avoid an EPT large page split up
* by the mapping.
* Starting below X86_RESERVE_LOW (usually 64kB) is fine as
* the BIOS used for HVM guests is well behaved and won't
* clobber memory other than the first 4kB.
*/
for (pa = PAGE_SIZE;
!e820__mapped_all(pa, pa + PAGE_SIZE, E820_TYPE_RAM) ||
memblock_is_reserved(pa);
pa += PAGE_SIZE)
;
shared_info_pfn = PHYS_PFN(pa);
memblock_reserve(pa, PAGE_SIZE);
HYPERVISOR_shared_info = early_memremap(pa, PAGE_SIZE);
}
static void __init xen_hvm_init_mem_mapping(void)
{
early_memunmap(HYPERVISOR_shared_info, PAGE_SIZE);
HYPERVISOR_shared_info = __va(PFN_PHYS(shared_info_pfn));
}
static void __init init_hvm_pv_info(void)
{
int major, minor;
@ -153,6 +166,7 @@ static void __init xen_hvm_guest_init(void)
init_hvm_pv_info();
reserve_shared_info();
xen_hvm_init_shared_info();
/*
@ -218,5 +232,6 @@ const struct hypervisor_x86 x86_hyper_xen_hvm = {
.init_platform = xen_hvm_guest_init,
.pin_vcpu = xen_pin_vcpu,
.x2apic_available = xen_x2apic_para_available,
.init_mem_mapping = xen_hvm_init_mem_mapping,
};
EXPORT_SYMBOL(x86_hyper_xen_hvm);

2
arch/xtensa/include/asm/Kbuild
View File

@ -1,5 +1,6 @@
generic-y += bug.h
generic-y += clkdev.h
generic-y += device.h
generic-y += div64.h
generic-y += dma-contiguous.h
generic-y += emergency-restart.h
@ -17,6 +18,7 @@ generic-y += local.h
generic-y += local64.h
generic-y += mcs_spinlock.h
generic-y += mm-arch-hooks.h
generic-y += param.h
generic-y += percpu.h
generic-y += preempt.h
generic-y += rwsem.h

15
arch/xtensa/include/asm/device.h
View File

@ -1,15 +0,0 @@
/*
* Arch specific extensions to struct device
*
* This file is released under the GPLv2
*/
#ifndef _ASM_XTENSA_DEVICE_H
#define _ASM_XTENSA_DEVICE_H
struct dev_archdata {
};
struct pdev_archdata {
};
#endif /* _ASM_XTENSA_DEVICE_H */

18
arch/xtensa/include/asm/param.h
View File

@ -1,18 +0,0 @@
/*
* include/asm-xtensa/param.h
*
* 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) 2001 - 2005 Tensilica Inc.
*/
#ifndef _XTENSA_PARAM_H
#define _XTENSA_PARAM_H
#include <uapi/asm/param.h>
# define HZ CONFIG_HZ /* internal timer frequency */
# define USER_HZ 100 /* for user interfaces in "ticks" */
# define CLOCKS_PER_SEC (USER_HZ) /* frequnzy at which times() counts */
#endif /* _XTENSA_PARAM_H */

2
arch/xtensa/kernel/xtensa_ksyms.c
View File

@ -94,13 +94,11 @@ unsigned long __sync_fetch_and_or_4(unsigned long *p, unsigned long v)
}
EXPORT_SYMBOL(__sync_fetch_and_or_4);
#ifdef CONFIG_NET
/*
* Networking support
*/
EXPORT_SYMBOL(csum_partial);
EXPORT_SYMBOL(csum_partial_copy_generic);
#endif /* CONFIG_NET */
/*
* Architecture-specific symbols

16
arch/xtensa/mm/cache.c
View File

@ -103,6 +103,7 @@ void clear_user_highpage(struct page *page, unsigned long vaddr)
clear_page_alias(kvaddr, paddr);
preempt_enable();
}
EXPORT_SYMBOL(clear_user_highpage);
void copy_user_highpage(struct page *dst, struct page *src,
unsigned long vaddr, struct vm_area_struct *vma)
@ -119,10 +120,7 @@ void copy_user_highpage(struct page *dst, struct page *src,
copy_page_alias(dst_vaddr, src_vaddr, dst_paddr, src_paddr);
preempt_enable();
}
#endif /* DCACHE_WAY_SIZE > PAGE_SIZE */
#if (DCACHE_WAY_SIZE > PAGE_SIZE) && XCHAL_DCACHE_IS_WRITEBACK
EXPORT_SYMBOL(copy_user_highpage);
/*
* Any time the kernel writes to a user page cache page, or it is about to
@ -176,7 +174,7 @@ void flush_dcache_page(struct page *page)
/* There shouldn't be an entry in the cache for this page anymore. */
}
EXPORT_SYMBOL(flush_dcache_page);
/*
* For now, flush the whole cache. FIXME??
@ -188,6 +186,7 @@ void local_flush_cache_range(struct vm_area_struct *vma,
__flush_invalidate_dcache_all();
__invalidate_icache_all();
}
EXPORT_SYMBOL(local_flush_cache_range);
/*
* Remove any entry in the cache for this page.
@ -207,8 +206,9 @@ void local_flush_cache_page(struct vm_area_struct *vma, unsigned long address,
__flush_invalidate_dcache_page_alias(virt, phys);
__invalidate_icache_page_alias(virt, phys);
}
EXPORT_SYMBOL(local_flush_cache_page);
#endif
#endif /* DCACHE_WAY_SIZE > PAGE_SIZE */
void
update_mmu_cache(struct vm_area_struct * vma, unsigned long addr, pte_t *ptep)
@ -225,7 +225,7 @@ update_mmu_cache(struct vm_area_struct * vma, unsigned long addr, pte_t *ptep)
flush_tlb_page(vma, addr);
#if (DCACHE_WAY_SIZE > PAGE_SIZE) && XCHAL_DCACHE_IS_WRITEBACK
#if (DCACHE_WAY_SIZE > PAGE_SIZE)
if (!PageReserved(page) && test_bit(PG_arch_1, &page->flags)) {
unsigned long phys = page_to_phys(page);
@ -256,7 +256,7 @@ update_mmu_cache(struct vm_area_struct * vma, unsigned long addr, pte_t *ptep)
* flush_dcache_page() on the page.
*/
#if (DCACHE_WAY_SIZE > PAGE_SIZE) && XCHAL_DCACHE_IS_WRITEBACK
#if (DCACHE_WAY_SIZE > PAGE_SIZE)
void copy_to_user_page(struct vm_area_struct *vma, struct page *page,
unsigned long vaddr, void *dst, const void *src,

22
block/bfq-iosched.h
View File

@ -71,17 +71,29 @@ struct bfq_service_tree {
*
* bfq_sched_data is the basic scheduler queue. It supports three
* ioprio_classes, and can be used either as a toplevel queue or as an
* intermediate queue on a hierarchical setup. @next_in_service
* points to the active entity of the sched_data service trees that
* will be scheduled next. It is used to reduce the number of steps
* needed for each hierarchical-schedule update.
* intermediate queue in a hierarchical setup.
*
* The supported ioprio_classes are the same as in CFQ, in descending
* priority order, IOPRIO_CLASS_RT, IOPRIO_CLASS_BE, IOPRIO_CLASS_IDLE.
* Requests from higher priority queues are served before all the
* requests from lower priority queues; among requests of the same
* queue requests are served according to B-WF2Q+.
* All the fields are protected by the queue lock of the containing bfqd.
*
* The schedule is implemented by the service trees, plus the field
* @next_in_service, which points to the entity on the active trees
* that will be served next, if 1) no changes in the schedule occurs
* before the current in-service entity is expired, 2) the in-service
* queue becomes idle when it expires, and 3) if the entity pointed by
* in_service_entity is not a queue, then the in-service child entity
* of the entity pointed by in_service_entity becomes idle on
* expiration. This peculiar definition allows for the following
* optimization, not yet exploited: while a given entity is still in
* service, we already know which is the best candidate for next
* service among the other active entitities in the same parent
* entity. We can then quickly compare the timestamps of the
* in-service entity with those of such best candidate.
*
* All fields are protected by the lock of the containing bfqd.
*/
struct bfq_sched_data {
/* entity in service */

146
block/bfq-wf2q.c
View File

@ -188,21 +188,23 @@ static bool bfq_update_parent_budget(struct bfq_entity *next_in_service)
/*
* This function tells whether entity stops being a candidate for next
* service, according to the following logic.
* service, according to the restrictive definition of the field
* next_in_service. In particular, this function is invoked for an
* entity that is about to be set in service.
*
* This function is invoked for an entity that is about to be set in
* service. If such an entity is a queue, then the entity is no longer
* a candidate for next service (i.e, a candidate entity to serve
* after the in-service entity is expired). The function then returns
* true.
* If entity is a queue, then the entity is no longer a candidate for
* next service according to the that definition, because entity is
* about to become the in-service queue. This function then returns
* true if entity is a queue.
*
* In contrast, the entity could stil be a candidate for next service
* if it is not a queue, and has more than one child. In fact, even if
* one of its children is about to be set in service, other children
* may still be the next to serve. As a consequence, a non-queue
* entity is not a candidate for next-service only if it has only one
* child. And only if this condition holds, then the function returns
* true for a non-queue entity.
* In contrast, entity could still be a candidate for next service if
* it is not a queue, and has more than one active child. In fact,
* even if one of its children is about to be set in service, other
* active children may still be the next to serve, for the parent
* entity, even according to the above definition. As a consequence, a
* non-queue entity is not a candidate for next-service only if it has
* only one active child. And only if this condition holds, then this
* function returns true for a non-queue entity.
*/
static bool bfq_no_longer_next_in_service(struct bfq_entity *entity)
{
@ -213,6 +215,18 @@ static bool bfq_no_longer_next_in_service(struct bfq_entity *entity)
bfqg = container_of(entity, struct bfq_group, entity);
/*
* The field active_entities does not always contain the
* actual number of active children entities: it happens to
* not account for the in-service entity in case the latter is
* removed from its active tree (which may get done after
* invoking the function bfq_no_longer_next_in_service in
* bfq_get_next_queue). Fortunately, here, i.e., while
* bfq_no_longer_next_in_service is not yet completed in
* bfq_get_next_queue, bfq_active_extract has not yet been
* invoked, and thus active_entities still coincides with the
* actual number of active entities.
*/
if (bfqg->active_entities == 1)
return true;
@ -954,7 +968,7 @@ static void bfq_update_fin_time_enqueue(struct bfq_entity *entity,
* one of its children receives a new request.
*
* Basically, this function updates the timestamps of entity and
* inserts entity into its active tree, ater possible extracting it
* inserts entity into its active tree, ater possibly extracting it
* from its idle tree.
*/
static void __bfq_activate_entity(struct bfq_entity *entity,
@ -1048,7 +1062,7 @@ static void __bfq_requeue_entity(struct bfq_entity *entity)
entity->start = entity->finish;
/*
* In addition, if the entity had more than one child
* when set in service, then was not extracted from
* when set in service, then it was not extracted from
* the active tree. This implies that the position of
* the entity in the active tree may need to be
* changed now, because we have just updated the start
@ -1056,9 +1070,8 @@ static void __bfq_requeue_entity(struct bfq_entity *entity)
* time in a moment (the requeueing is then, more
* precisely, a repositioning in this case). To
* implement this repositioning, we: 1) dequeue the
* entity here, 2) update the finish time and
* requeue the entity according to the new
* timestamps below.
* entity here, 2) update the finish time and requeue
* the entity according to the new timestamps below.
*/
if (entity->tree)
bfq_active_extract(st, entity);
@ -1105,9 +1118,10 @@ static void __bfq_activate_requeue_entity(struct bfq_entity *entity,
/**
* bfq_activate_entity - activate or requeue an entity representing a bfq_queue,
* and activate, requeue or reposition all ancestors
* for which such an update becomes necessary.
* bfq_activate_requeue_entity - activate or requeue an entity representing a
* bfq_queue, and activate, requeue or reposition
* all ancestors for which such an update becomes
* necessary.
* @entity: the entity to activate.
* @non_blocking_wait_rq: true if this entity was waiting for a request
* @requeue: true if this is a requeue, which implies that bfqq is
@ -1135,9 +1149,9 @@ static void bfq_activate_requeue_entity(struct bfq_entity *entity,
* @ins_into_idle_tree: if false, the entity will not be put into the
* idle tree.
*
* Deactivates an entity, independently from its previous state. Must
* Deactivates an entity, independently of its previous state. Must
* be invoked only if entity is on a service tree. Extracts the entity
* from that tree, and if necessary and allowed, puts it on the idle
* from that tree, and if necessary and allowed, puts it into the idle
* tree.
*/
bool __bfq_deactivate_entity(struct bfq_entity *entity, bool ins_into_idle_tree)
@ -1158,8 +1172,10 @@ bool __bfq_deactivate_entity(struct bfq_entity *entity, bool ins_into_idle_tree)
st = bfq_entity_service_tree(entity);
is_in_service = entity == sd->in_service_entity;
if (is_in_service)
if (is_in_service) {
bfq_calc_finish(entity, entity->service);
sd->in_service_entity = NULL;
}
if (entity->tree == &st->active)
bfq_active_extract(st, entity);
@ -1177,7 +1193,7 @@ bool __bfq_deactivate_entity(struct bfq_entity *entity, bool ins_into_idle_tree)
/**
* bfq_deactivate_entity - deactivate an entity representing a bfq_queue.
* @entity: the entity to deactivate.
* @ins_into_idle_tree: true if the entity can be put on the idle tree
* @ins_into_idle_tree: true if the entity can be put into the idle tree
*/
static void bfq_deactivate_entity(struct bfq_entity *entity,
bool ins_into_idle_tree,
@ -1208,16 +1224,29 @@ static void bfq_deactivate_entity(struct bfq_entity *entity,
*/
bfq_update_next_in_service(sd, NULL);
if (sd->next_in_service)
if (sd->next_in_service || sd->in_service_entity) {
/*
* The parent entity is still backlogged,
* because next_in_service is not NULL. So, no
* further upwards deactivation must be
* performed. Yet, next_in_service has
* changed. Then the schedule does need to be
* updated upwards.
* The parent entity is still active, because
* either next_in_service or in_service_entity
* is not NULL. So, no further upwards
* deactivation must be performed. Yet,
* next_in_service has changed. Then the
* schedule does need to be updated upwards.
*
* NOTE If in_service_entity is not NULL, then
* next_in_service may happen to be NULL,
* although the parent entity is evidently
* active. This happens if 1) the entity
* pointed by in_service_entity is the only
* active entity in the parent entity, and 2)
* according to the definition of
* next_in_service, the in_service_entity
* cannot be considered as
* next_in_service. See the comments on the
* definition of next_in_service for details.
*/
break;
}
/*
* If we get here, then the parent is no more
@ -1494,47 +1523,34 @@ struct bfq_queue *bfq_get_next_queue(struct bfq_data *bfqd)
/*
* If entity is no longer a candidate for next
* service, then we extract it from its active tree,
* for the following reason. To further boost the
* throughput in some special case, BFQ needs to know
* which is the next candidate entity to serve, while
* there is already an entity in service. In this
* respect, to make it easy to compute/update the next
* candidate entity to serve after the current
* candidate has been set in service, there is a case
* where it is necessary to extract the current
* candidate from its service tree. Such a case is
* when the entity just set in service cannot be also
* a candidate for next service. Details about when
* this conditions holds are reported in the comments
* on the function bfq_no_longer_next_in_service()
* invoked below.
* service, then it must be extracted from its active
* tree, so as to make sure that it won't be
* considered when computing next_in_service. See the
* comments on the function
* bfq_no_longer_next_in_service() for details.
*/
if (bfq_no_longer_next_in_service(entity))
bfq_active_extract(bfq_entity_service_tree(entity),
entity);
/*
* For the same reason why we may have just extracted
* entity from its active tree, we may need to update
* next_in_service for the sched_data of entity too,
* regardless of whether entity has been extracted.
* In fact, even if entity has not been extracted, a
* descendant entity may get extracted. Such an event
* would cause a change in next_in_service for the
* level of the descendant entity, and thus possibly
* back to upper levels.
* Even if entity is not to be extracted according to
* the above check, a descendant entity may get
* extracted in one of the next iterations of this
* loop. Such an event could cause a change in
* next_in_service for the level of the descendant
* entity, and thus possibly back to this level.
*
* We cannot perform the resulting needed update
* before the end of this loop, because, to know which
* is the correct next-to-serve candidate entity for
* each level, we need first to find the leaf entity
* to set in service. In fact, only after we know
* which is the next-to-serve leaf entity, we can
* discover whether the parent entity of the leaf
* entity becomes the next-to-serve, and so on.
* However, we cannot perform the resulting needed
* update of next_in_service for this level before the
* end of the whole loop, because, to know which is
* the correct next-to-serve candidate entity for each
* level, we need first to find the leaf entity to set
* in service. In fact, only after we know which is
* the next-to-serve leaf entity, we can discover
* whether the parent entity of the leaf entity
* becomes the next-to-serve, and so on.
*/
}
bfqq = bfq_entity_to_bfqq(entity);

6
block/bio-integrity.c
View File

@ -387,9 +387,11 @@ static void bio_integrity_verify_fn(struct work_struct *work)
*/
bool __bio_integrity_endio(struct bio *bio)
{
if (bio_op(bio) == REQ_OP_READ && !bio->bi_status) {
struct bio_integrity_payload *bip = bio_integrity(bio);
struct blk_integrity *bi = bdev_get_integrity(bio->bi_bdev);
struct bio_integrity_payload *bip = bio_integrity(bio);
if (bio_op(bio) == REQ_OP_READ && !bio->bi_status &&
(bip->bip_flags & BIP_BLOCK_INTEGRITY) && bi->profile->verify_fn) {
INIT_WORK(&bip->bip_work, bio_integrity_verify_fn);
queue_work(kintegrityd_wq, &bip->bip_work);
return false;

21
block/blk-mq.c
View File

@ -301,11 +301,12 @@ static struct request *blk_mq_get_request(struct request_queue *q,
struct elevator_queue *e = q->elevator;
struct request *rq;
unsigned int tag;
struct blk_mq_ctx *local_ctx = NULL;
blk_queue_enter_live(q);
data->q = q;
if (likely(!data->ctx))
data->ctx = blk_mq_get_ctx(q);
data->ctx = local_ctx = blk_mq_get_ctx(q);
if (likely(!data->hctx))
data->hctx = blk_mq_map_queue(q, data->ctx->cpu);
if (op & REQ_NOWAIT)
@ -324,6 +325,10 @@ static struct request *blk_mq_get_request(struct request_queue *q,
tag = blk_mq_get_tag(data);
if (tag == BLK_MQ_TAG_FAIL) {
if (local_ctx) {
blk_mq_put_ctx(local_ctx);
data->ctx = NULL;
}
blk_queue_exit(q);
return NULL;
}
@ -356,12 +361,12 @@ struct request *blk_mq_alloc_request(struct request_queue *q, unsigned int op,
rq = blk_mq_get_request(q, NULL, op, &alloc_data);
blk_mq_put_ctx(alloc_data.ctx);
blk_queue_exit(q);
if (!rq)
return ERR_PTR(-EWOULDBLOCK);
blk_mq_put_ctx(alloc_data.ctx);
blk_queue_exit(q);
rq->__data_len = 0;
rq->__sector = (sector_t) -1;
rq->bio = rq->biotail = NULL;
@ -407,11 +412,11 @@ struct request *blk_mq_alloc_request_hctx(struct request_queue *q,
rq = blk_mq_get_request(q, NULL, op, &alloc_data);
blk_queue_exit(q);
if (!rq)
return ERR_PTR(-EWOULDBLOCK);
blk_queue_exit(q);
return rq;
}
EXPORT_SYMBOL_GPL(blk_mq_alloc_request_hctx);
@ -679,8 +684,8 @@ EXPORT_SYMBOL(blk_mq_kick_requeue_list);
void blk_mq_delay_kick_requeue_list(struct request_queue *q,
unsigned long msecs)
{
kblockd_schedule_delayed_work(&q->requeue_work,
msecs_to_jiffies(msecs));
kblockd_mod_delayed_work_on(WORK_CPU_UNBOUND, &q->requeue_work,
msecs_to_jiffies(msecs));
}
EXPORT_SYMBOL(blk_mq_delay_kick_requeue_list);

36
drivers/acpi/spcr.c
View File

@ -16,6 +16,16 @@
#include <linux/kernel.h>
#include <linux/serial_core.h>
/*
* Erratum 44 for QDF2432v1 and QDF2400v1 SoCs describes the BUSY bit as
* occasionally getting stuck as 1. To avoid the potential for a hang, check
* TXFE == 0 instead of BUSY == 1. This may not be suitable for all UART
* implementations, so only do so if an affected platform is detected in
* parse_spcr().
*/
bool qdf2400_e44_present;
EXPORT_SYMBOL(qdf2400_e44_present);
/*
* Some Qualcomm Datacenter Technologies SoCs have a defective UART BUSY bit.
* Detect them by examining the OEM fields in the SPCR header, similiar to PCI
@ -147,8 +157,30 @@ int __init parse_spcr(bool earlycon)
goto done;
}
if (qdf2400_erratum_44_present(&table->header))
uart = "qdf2400_e44";
/*
* If the E44 erratum is required, then we need to tell the pl011
* driver to implement the work-around.
*
* The global variable is used by the probe function when it
* creates the UARTs, whether or not they're used as a console.
*
* If the user specifies "traditional" earlycon, the qdf2400_e44
* console name matches the EARLYCON_DECLARE() statement, and
* SPCR is not used. Parameter "earlycon" is false.
*
* If the user specifies "SPCR" earlycon, then we need to update
* the console name so that it also says "qdf2400_e44". Parameter
* "earlycon" is true.
*
* For consistency, if we change the console name, then we do it
* for everyone, not just earlycon.
*/
if (qdf2400_erratum_44_present(&table->header)) {
qdf2400_e44_present = true;
if (earlycon)
uart = "qdf2400_e44";
}
if (xgene_8250_erratum_present(table))
iotype = "mmio32";

49
drivers/base/firmware_class.c
View File

@ -30,7 +30,6 @@
#include <linux/syscore_ops.h>
#include <linux/reboot.h>
#include <linux/security.h>
#include <linux/swait.h>
#include <generated/utsrelease.h>
@ -112,13 +111,13 @@ static inline long firmware_loading_timeout(void)
* state of the firmware loading.
*/
struct fw_state {
struct swait_queue_head wq;
struct completion completion;
enum fw_status status;
};
static void fw_state_init(struct fw_state *fw_st)
{
init_swait_queue_head(&fw_st->wq);
init_completion(&fw_st->completion);
fw_st->status = FW_STATUS_UNKNOWN;
}
@ -131,9 +130,7 @@ static int __fw_state_wait_common(struct fw_state *fw_st, long timeout)
{
long ret;
ret = swait_event_interruptible_timeout(fw_st->wq,
__fw_state_is_done(READ_ONCE(fw_st->status)),
timeout);
ret = wait_for_completion_killable_timeout(&fw_st->completion, timeout);
if (ret != 0 && fw_st->status == FW_STATUS_ABORTED)
return -ENOENT;
if (!ret)
@ -148,35 +145,34 @@ static void __fw_state_set(struct fw_state *fw_st,
WRITE_ONCE(fw_st->status, status);
if (status == FW_STATUS_DONE || status == FW_STATUS_ABORTED)
swake_up(&fw_st->wq);
complete_all(&fw_st->completion);
}
#define fw_state_start(fw_st) \
__fw_state_set(fw_st, FW_STATUS_LOADING)
#define fw_state_done(fw_st) \
__fw_state_set(fw_st, FW_STATUS_DONE)
#define fw_state_aborted(fw_st) \
__fw_state_set(fw_st, FW_STATUS_ABORTED)
#define fw_state_wait(fw_st) \
__fw_state_wait_common(fw_st, MAX_SCHEDULE_TIMEOUT)
#ifndef CONFIG_FW_LOADER_USER_HELPER
#define fw_state_is_aborted(fw_st) false
#else /* CONFIG_FW_LOADER_USER_HELPER */
static int __fw_state_check(struct fw_state *fw_st, enum fw_status status)
{
return fw_st->status == status;
}
#define fw_state_is_aborted(fw_st) \
__fw_state_check(fw_st, FW_STATUS_ABORTED)
#ifdef CONFIG_FW_LOADER_USER_HELPER
#define fw_state_aborted(fw_st) \
__fw_state_set(fw_st, FW_STATUS_ABORTED)
#define fw_state_is_done(fw_st) \
__fw_state_check(fw_st, FW_STATUS_DONE)
#define fw_state_is_loading(fw_st) \
__fw_state_check(fw_st, FW_STATUS_LOADING)
#define fw_state_is_aborted(fw_st) \
__fw_state_check(fw_st, FW_STATUS_ABORTED)
#define fw_state_wait_timeout(fw_st, timeout) \
__fw_state_wait_common(fw_st, timeout)
@ -1200,6 +1196,28 @@ _request_firmware_prepare(struct firmware **firmware_p, const char *name,
return 1; /* need to load */
}
/*
* Batched requests need only one wake, we need to do this step last due to the
* fallback mechanism. The buf is protected with kref_get(), and it won't be
* released until the last user calls release_firmware().
*
* Failed batched requests are possible as well, in such cases we just share
* the struct firmware_buf and won't release it until all requests are woken
* and have gone through this same path.
*/
static void fw_abort_batch_reqs(struct firmware *fw)
{
struct firmware_buf *buf;
/* Loaded directly? */
if (!fw || !fw->priv)
return;
buf = fw->priv;
if (!fw_state_is_aborted(&buf->fw_st))
fw_state_aborted(&buf->fw_st);
}
/* called from request_firmware() and request_firmware_work_func() */
static int
_request_firmware(const struct firmware **firmware_p, const char *name,
@ -1243,6 +1261,7 @@ _request_firmware(const struct firmware **firmware_p, const char *name,
out:
if (ret < 0) {
fw_abort_batch_reqs(fw);
release_firmware(fw);
fw = NULL;
}

61
drivers/block/sunvdc.c
View File

@ -875,6 +875,56 @@ static void print_version(void)
printk(KERN_INFO "%s", version);
}
struct vdc_check_port_data {
int dev_no;
char *type;
};
static int vdc_device_probed(struct device *dev, void *arg)
{
struct vio_dev *vdev = to_vio_dev(dev);
struct vdc_check_port_data *port_data;
port_data = (struct vdc_check_port_data *)arg;
if ((vdev->dev_no == port_data->dev_no) &&
(!(strcmp((char *)&vdev->type, port_data->type))) &&
dev_get_drvdata(dev)) {
/* This device has already been configured
* by vdc_port_probe()
*/
return 1;
} else {
return 0;
}
}
/* Determine whether the VIO device is part of an mpgroup
* by locating all the virtual-device-port nodes associated
* with the parent virtual-device node for the VIO device
* and checking whether any of these nodes are vdc-ports
* which have already been configured.
*
* Returns true if this device is part of an mpgroup and has
* already been probed.
*/
static bool vdc_port_mpgroup_check(struct vio_dev *vdev)
{
struct vdc_check_port_data port_data;
struct device *dev;
port_data.dev_no = vdev->dev_no;
port_data.type = (char *)&vdev->type;
dev = device_find_child(vdev->dev.parent, &port_data,
vdc_device_probed);
if (dev)
return true;
return false;
}
static int vdc_port_probe(struct vio_dev *vdev, const struct vio_device_id *id)
{
struct mdesc_handle *hp;
@ -893,6 +943,14 @@ static int vdc_port_probe(struct vio_dev *vdev, const struct vio_device_id *id)
goto err_out_release_mdesc;
}
/* Check if this device is part of an mpgroup */
if (vdc_port_mpgroup_check(vdev)) {
printk(KERN_WARNING
"VIO: Ignoring extra vdisk port %s",
dev_name(&vdev->dev));
goto err_out_release_mdesc;
}
port = kzalloc(sizeof(*port), GFP_KERNEL);
err = -ENOMEM;
if (!port) {
@ -943,6 +1001,9 @@ static int vdc_port_probe(struct vio_dev *vdev, const struct vio_device_id *id)
if (err)
goto err_out_free_tx_ring;
/* Note that the device driver_data is used to determine
* whether the port has been probed.
*/
dev_set_drvdata(&vdev->dev, port);
mdesc_release(hp);

4
drivers/block/zram/zram_drv.c
View File

@ -308,7 +308,7 @@ static ssize_t comp_algorithm_store(struct device *dev,
struct device_attribute *attr, const char *buf, size_t len)
{
struct zram *zram = dev_to_zram(dev);
char compressor[CRYPTO_MAX_ALG_NAME];
char compressor[ARRAY_SIZE(zram->compressor)];
size_t sz;
strlcpy(compressor, buf, sizeof(compressor));
@ -327,7 +327,7 @@ static ssize_t comp_algorithm_store(struct device *dev,
return -EBUSY;
}
strlcpy(zram->compressor, compressor, sizeof(compressor));
strcpy(zram->compressor, compressor);
up_write(&zram->init_lock);
return len;
}

2
drivers/char/random.c
View File

@ -1492,7 +1492,7 @@ static void _warn_unseeded_randomness(const char *func_name, void *caller,
#ifndef CONFIG_WARN_ALL_UNSEEDED_RANDOM
print_once = true;
#endif
pr_notice("random: %s called from %pF with crng_init=%d\n",
pr_notice("random: %s called from %pS with crng_init=%d\n",
func_name, caller, crng_init);
}

10
drivers/cpuidle/cpuidle-powernv.c
View File

@ -235,6 +235,7 @@ static inline int validate_dt_prop_sizes(const char *prop1, int prop1_len,
return -1;
}
extern u32 pnv_get_supported_cpuidle_states(void);
static int powernv_add_idle_states(void)
{
struct device_node *power_mgt;
@ -248,6 +249,8 @@ static int powernv_add_idle_states(void)
const char *names[CPUIDLE_STATE_MAX];
u32 has_stop_states = 0;
int i, rc;
u32 supported_flags = pnv_get_supported_cpuidle_states();
/* Currently we have snooze statically defined */
@ -362,6 +365,13 @@ static int powernv_add_idle_states(void)
for (i = 0; i < dt_idle_states; i++) {
unsigned int exit_latency, target_residency;
bool stops_timebase = false;
/*
* Skip the platform idle state whose flag isn't in
* the supported_cpuidle_states flag mask.
*/
if ((flags[i] & supported_flags) != flags[i])
continue;
/*
* If an idle state has exit latency beyond
* POWERNV_THRESHOLD_LATENCY_NS then don't use it

8
drivers/crypto/inside-secure/safexcel_hash.c
View File

@ -883,10 +883,7 @@ static int safexcel_hmac_sha1_setkey(struct crypto_ahash *tfm, const u8 *key,
if (ret)
return ret;
memcpy(ctx->ipad, &istate.state, SHA1_DIGEST_SIZE);
memcpy(ctx->opad, &ostate.state, SHA1_DIGEST_SIZE);
for (i = 0; i < ARRAY_SIZE(istate.state); i++) {
for (i = 0; i < SHA1_DIGEST_SIZE / sizeof(u32); i++) {
if (ctx->ipad[i] != le32_to_cpu(istate.state[i]) ||
ctx->opad[i] != le32_to_cpu(ostate.state[i])) {
ctx->base.needs_inv = true;
@ -894,6 +891,9 @@ static int safexcel_hmac_sha1_setkey(struct crypto_ahash *tfm, const u8 *key,
}
}
memcpy(ctx->ipad, &istate.state, SHA1_DIGEST_SIZE);
memcpy(ctx->opad, &ostate.state, SHA1_DIGEST_SIZE);
return 0;
}

5
drivers/dma-buf/sync_file.c
View File

@ -304,7 +304,7 @@ static int sync_file_release(struct inode *inode, struct file *file)
{
struct sync_file *sync_file = file->private_data;
if (test_bit(POLL_ENABLED, &sync_file->fence->flags))
if (test_bit(POLL_ENABLED, &sync_file->flags))
dma_fence_remove_callback(sync_file->fence, &sync_file->cb);
dma_fence_put(sync_file->fence);
kfree(sync_file);
@ -318,7 +318,8 @@ static unsigned int sync_file_poll(struct file *file, poll_table *wait)
poll_wait(file, &sync_file->wq, wait);
if (!test_and_set_bit(POLL_ENABLED, &sync_file->fence->flags)) {
if (list_empty(&sync_file->cb.node) &&
!test_and_set_bit(POLL_ENABLED, &sync_file->flags)) {
if (dma_fence_add_callback(sync_file->fence, &sync_file->cb,
fence_check_cb_func) < 0)
wake_up_all(&sync_file->wq);

2
drivers/gpu/drm/bridge/tc358767.c
View File

@ -1255,7 +1255,7 @@ static int tc_probe(struct i2c_client *client, const struct i2c_device_id *id)
/* port@2 is the output port */
ret = drm_of_find_panel_or_bridge(dev->of_node, 2, 0, &tc->panel, NULL);
if (ret)
if (ret && ret != -ENODEV)
return ret;
/* Shut down GPIO is optional */

4
drivers/gpu/drm/etnaviv/etnaviv_gem_submit.c
View File

@ -270,8 +270,8 @@ static int submit_reloc(struct etnaviv_gem_submit *submit, void *stream,
if (ret)
return ret;
if (r->reloc_offset >= bo->obj->base.size - sizeof(*ptr)) {
DRM_ERROR("relocation %u outside object", i);
if (r->reloc_offset > bo->obj->base.size - sizeof(*ptr)) {
DRM_ERROR("relocation %u outside object\n", i);
return -EINVAL;
}

14
drivers/gpu/drm/exynos/exynos_drm_fb.c
View File

@ -145,13 +145,19 @@ static struct drm_framebuffer *
exynos_user_fb_create(struct drm_device *dev, struct drm_file *file_priv,
const struct drm_mode_fb_cmd2 *mode_cmd)
{
const struct drm_format_info *info = drm_get_format_info(dev, mode_cmd);
struct exynos_drm_gem *exynos_gem[MAX_FB_BUFFER];
struct drm_gem_object *obj;
struct drm_framebuffer *fb;
int i;
int ret;
for (i = 0; i < drm_format_num_planes(mode_cmd->pixel_format); i++) {
for (i = 0; i < info->num_planes; i++) {
unsigned int height = (i == 0) ? mode_cmd->height :
DIV_ROUND_UP(mode_cmd->height, info->vsub);
unsigned long size = height * mode_cmd->pitches[i] +
mode_cmd->offsets[i];
obj = drm_gem_object_lookup(file_priv, mode_cmd->handles[i]);
if (!obj) {
DRM_ERROR("failed to lookup gem object\n");
@ -160,6 +166,12 @@ exynos_user_fb_create(struct drm_device *dev, struct drm_file *file_priv,
}
exynos_gem[i] = to_exynos_gem(obj);
if (size > exynos_gem[i]->size) {
i++;
ret = -EINVAL;
goto err;
}
}
fb = exynos_drm_framebuffer_init(dev, mode_cmd, exynos_gem, i);

27
drivers/gpu/drm/i915/gvt/execlist.c
View File

@ -46,6 +46,8 @@
#define same_context(a, b) (((a)->context_id == (b)->context_id) && \
((a)->lrca == (b)->lrca))
static void clean_workloads(struct intel_vgpu *vgpu, unsigned long engine_mask);
static int context_switch_events[] = {
[RCS] = RCS_AS_CONTEXT_SWITCH,
[BCS] = BCS_AS_CONTEXT_SWITCH,
@ -499,10 +501,10 @@ static void release_shadow_wa_ctx(struct intel_shadow_wa_ctx *wa_ctx)
static int complete_execlist_workload(struct intel_vgpu_workload *workload)
{
struct intel_vgpu *vgpu = workload->vgpu;
struct intel_vgpu_execlist *execlist =
&vgpu->execlist[workload->ring_id];
int ring_id = workload->ring_id;
struct intel_vgpu_execlist *execlist = &vgpu->execlist[ring_id];
struct intel_vgpu_workload *next_workload;
struct list_head *next = workload_q_head(vgpu, workload->ring_id)->next;
struct list_head *next = workload_q_head(vgpu, ring_id)->next;
bool lite_restore = false;
int ret;
@ -512,10 +514,25 @@ static int complete_execlist_workload(struct intel_vgpu_workload *workload)
release_shadow_batch_buffer(workload);
release_shadow_wa_ctx(&workload->wa_ctx);
if (workload->status || vgpu->resetting)
if (workload->status || (vgpu->resetting_eng & ENGINE_MASK(ring_id))) {
/* if workload->status is not successful means HW GPU
* has occurred GPU hang or something wrong with i915/GVT,
* and GVT won't inject context switch interrupt to guest.
* So this error is a vGPU hang actually to the guest.
* According to this we should emunlate a vGPU hang. If
* there are pending workloads which are already submitted
* from guest, we should clean them up like HW GPU does.
*
* if it is in middle of engine resetting, the pending
* workloads won't be submitted to HW GPU and will be
* cleaned up during the resetting process later, so doing
* the workload clean up here doesn't have any impact.
**/
clean_workloads(vgpu, ENGINE_MASK(ring_id));
goto out;
}
if (!list_empty(workload_q_head(vgpu, workload->ring_id))) {
if (!list_empty(workload_q_head(vgpu, ring_id))) {
struct execlist_ctx_descriptor_format *this_desc, *next_desc;
next_workload = container_of(next,

11
drivers/gpu/drm/i915/gvt/firmware.c
View File

@ -72,11 +72,13 @@ static int expose_firmware_sysfs(struct intel_gvt *gvt)
struct intel_gvt_device_info *info = &gvt->device_info;
struct pci_dev *pdev = gvt->dev_priv->drm.pdev;
struct intel_gvt_mmio_info *e;
struct gvt_mmio_block *block = gvt->mmio.mmio_block;
int num = gvt->mmio.num_mmio_block;
struct gvt_firmware_header *h;
void *firmware;
void *p;
unsigned long size, crc32_start;
int i;
int i, j;
int ret;
size = sizeof(*h) + info->mmio_size + info->cfg_space_size;
@ -105,6 +107,13 @@ static int expose_firmware_sysfs(struct intel_gvt *gvt)
hash_for_each(gvt->mmio.mmio_info_table, i, e, node)
*(u32 *)(p + e->offset) = I915_READ_NOTRACE(_MMIO(e->offset));
for (i = 0; i < num; i++, block++) {
for (j = 0; j < block->size; j += 4)
*(u32 *)(p + INTEL_GVT_MMIO_OFFSET(block->offset) + j) =
I915_READ_NOTRACE(_MMIO(INTEL_GVT_MMIO_OFFSET(
block->offset) + j));
}
memcpy(gvt->firmware.mmio, p, info->mmio_size);
crc32_start = offsetof(struct gvt_firmware_header, crc32) + 4;

14
drivers/gpu/drm/i915/gvt/gvt.h
View File

@ -149,7 +149,7 @@ struct intel_vgpu {
bool active;
bool pv_notified;
bool failsafe;
bool resetting;
unsigned int resetting_eng;
void *sched_data;
struct vgpu_sched_ctl sched_ctl;
@ -195,6 +195,15 @@ struct intel_gvt_fence {
unsigned long vgpu_allocated_fence_num;
};
/* Special MMIO blocks. */
struct gvt_mmio_block {
unsigned int device;
i915_reg_t offset;
unsigned int size;
gvt_mmio_func read;
gvt_mmio_func write;
};
#define INTEL_GVT_MMIO_HASH_BITS 11
struct intel_gvt_mmio {
@ -214,6 +223,9 @@ struct intel_gvt_mmio {
/* This reg could be accessed by unaligned address */
#define F_UNALIGN (1 << 6)
struct gvt_mmio_block *mmio_block;
unsigned int num_mmio_block;
DECLARE_HASHTABLE(mmio_info_table, INTEL_GVT_MMIO_HASH_BITS);
unsigned int num_tracked_mmio;
};

38
drivers/gpu/drm/i915/gvt/handlers.c
View File

@ -2857,31 +2857,15 @@ static int init_skl_mmio_info(struct intel_gvt *gvt)
return 0;
}
/* Special MMIO blocks. */
static struct gvt_mmio_block {
unsigned int device;
i915_reg_t offset;
unsigned int size;
gvt_mmio_func read;
gvt_mmio_func write;
} gvt_mmio_blocks[] = {
{D_SKL_PLUS, _MMIO(CSR_MMIO_START_RANGE), 0x3000, NULL, NULL},
{D_ALL, _MMIO(MCHBAR_MIRROR_BASE_SNB), 0x40000, NULL, NULL},
{D_ALL, _MMIO(VGT_PVINFO_PAGE), VGT_PVINFO_SIZE,
pvinfo_mmio_read, pvinfo_mmio_write},
{D_ALL, LGC_PALETTE(PIPE_A, 0), 1024, NULL, NULL},
{D_ALL, LGC_PALETTE(PIPE_B, 0), 1024, NULL, NULL},
{D_ALL, LGC_PALETTE(PIPE_C, 0), 1024, NULL, NULL},
};
static struct gvt_mmio_block *find_mmio_block(struct intel_gvt *gvt,
unsigned int offset)
{
unsigned long device = intel_gvt_get_device_type(gvt);
struct gvt_mmio_block *block = gvt_mmio_blocks;
struct gvt_mmio_block *block = gvt->mmio.mmio_block;
int num = gvt->mmio.num_mmio_block;
int i;
for (i = 0; i < ARRAY_SIZE(gvt_mmio_blocks); i++, block++) {
for (i = 0; i < num; i++, block++) {
if (!(device & block->device))
continue;
if (offset >= INTEL_GVT_MMIO_OFFSET(block->offset) &&
@ -2912,6 +2896,17 @@ void intel_gvt_clean_mmio_info(struct intel_gvt *gvt)
gvt->mmio.mmio_attribute = NULL;
}
/* Special MMIO blocks. */
static struct gvt_mmio_block mmio_blocks[] = {
{D_SKL_PLUS, _MMIO(CSR_MMIO_START_RANGE), 0x3000, NULL, NULL},
{D_ALL, _MMIO(MCHBAR_MIRROR_BASE_SNB), 0x40000, NULL, NULL},
{D_ALL, _MMIO(VGT_PVINFO_PAGE), VGT_PVINFO_SIZE,
pvinfo_mmio_read, pvinfo_mmio_write},
{D_ALL, LGC_PALETTE(PIPE_A, 0), 1024, NULL, NULL},
{D_ALL, LGC_PALETTE(PIPE_B, 0), 1024, NULL, NULL},
{D_ALL, LGC_PALETTE(PIPE_C, 0), 1024, NULL, NULL},
};
/**
* intel_gvt_setup_mmio_info - setup MMIO information table for GVT device
* @gvt: GVT device
@ -2951,6 +2946,9 @@ int intel_gvt_setup_mmio_info(struct intel_gvt *gvt)
goto err;
}
gvt->mmio.mmio_block = mmio_blocks;
gvt->mmio.num_mmio_block = ARRAY_SIZE(mmio_blocks);
gvt_dbg_mmio("traced %u virtual mmio registers\n",
gvt->mmio.num_tracked_mmio);
return 0;
@ -3030,7 +3028,7 @@ int intel_vgpu_mmio_reg_rw(struct intel_vgpu *vgpu, unsigned int offset,
gvt_mmio_func func;
int ret;
if (WARN_ON(bytes > 4))
if (WARN_ON(bytes > 8))
return -EINVAL;
/*

3
drivers/gpu/drm/i915/gvt/scheduler.c
View File

@ -432,7 +432,8 @@ static void complete_current_workload(struct intel_gvt *gvt, int ring_id)
i915_gem_request_put(fetch_and_zero(&workload->req));
if (!workload->status && !vgpu->resetting) {
if (!workload->status && !(vgpu->resetting_eng &
ENGINE_MASK(ring_id))) {
update_guest_context(workload);
for_each_set_bit(event, workload->pending_events,

8
drivers/gpu/drm/i915/gvt/vgpu.c
View File

@ -480,11 +480,13 @@ void intel_gvt_reset_vgpu_locked(struct intel_vgpu *vgpu, bool dmlr,
{
struct intel_gvt *gvt = vgpu->gvt;
struct intel_gvt_workload_scheduler *scheduler = &gvt->scheduler;
unsigned int resetting_eng = dmlr ? ALL_ENGINES : engine_mask;
gvt_dbg_core("------------------------------------------\n");
gvt_dbg_core("resseting vgpu%d, dmlr %d, engine_mask %08x\n",
vgpu->id, dmlr, engine_mask);
vgpu->resetting = true;
vgpu->resetting_eng = resetting_eng;
intel_vgpu_stop_schedule(vgpu);
/*
@ -497,7 +499,7 @@ void intel_gvt_reset_vgpu_locked(struct intel_vgpu *vgpu, bool dmlr,
mutex_lock(&gvt->lock);
}
intel_vgpu_reset_execlist(vgpu, dmlr ? ALL_ENGINES : engine_mask);
intel_vgpu_reset_execlist(vgpu, resetting_eng);
/* full GPU reset or device model level reset */
if (engine_mask == ALL_ENGINES || dmlr) {
@ -520,7 +522,7 @@ void intel_gvt_reset_vgpu_locked(struct intel_vgpu *vgpu, bool dmlr,
}
}
vgpu->resetting = false;
vgpu->resetting_eng = 0;
gvt_dbg_core("reset vgpu%d done\n", vgpu->id);
gvt_dbg_core("------------------------------------------\n");
}

11
drivers/gpu/drm/i915/i915_gem_shrinker.c
View File

@ -43,16 +43,21 @@ static bool shrinker_lock(struct drm_i915_private *dev_priv, bool *unlock)
return true;
case MUTEX_TRYLOCK_FAILED:
*unlock = false;
preempt_disable();
do {
cpu_relax();
if (mutex_trylock(&dev_priv->drm.struct_mutex)) {
case MUTEX_TRYLOCK_SUCCESS:
*unlock = true;
return true;
break;
}
} while (!need_resched());
preempt_enable();
return *unlock;
return false;
case MUTEX_TRYLOCK_SUCCESS:
*unlock = true;
return true;
}
BUG();

4
drivers/gpu/drm/i915/i915_perf.c
View File

@ -1601,11 +1601,11 @@ static int gen8_emit_oa_config(struct drm_i915_gem_request *req)
u32 *cs;
int i;
cs = intel_ring_begin(req, n_flex_regs * 2 + 4);
cs = intel_ring_begin(req, ARRAY_SIZE(flex_mmio) * 2 + 4);
if (IS_ERR(cs))
return PTR_ERR(cs);
*cs++ = MI_LOAD_REGISTER_IMM(n_flex_regs + 1);
*cs++ = MI_LOAD_REGISTER_IMM(ARRAY_SIZE(flex_mmio) + 1);
*cs++ = i915_mmio_reg_offset(GEN8_OACTXCONTROL);
*cs++ = (dev_priv->perf.oa.period_exponent << GEN8_OA_TIMER_PERIOD_SHIFT) |

1
drivers/gpu/drm/i915/intel_color.c
View File

@ -398,6 +398,7 @@ static void bdw_load_gamma_lut(struct drm_crtc_state *state, u32 offset)
}
/* Program the max register to clamp values > 1.0. */
i = lut_size - 1;
I915_WRITE(PREC_PAL_GC_MAX(pipe, 0),
drm_color_lut_extract(lut[i].red, 16));
I915_WRITE(PREC_PAL_GC_MAX(pipe, 1),

2
drivers/gpu/drm/i915/intel_panel.c
View File

@ -469,7 +469,7 @@ static u32 intel_panel_compute_brightness(struct intel_connector *connector,
if (i915.invert_brightness > 0 ||
dev_priv->quirks & QUIRK_INVERT_BRIGHTNESS) {
return panel->backlight.max - val;
return panel->backlight.max - val + panel->backlight.min;
}
return val;

2
drivers/gpu/drm/msm/Kconfig
View File

@ -5,7 +5,7 @@ config DRM_MSM
depends on ARCH_QCOM || (ARM && COMPILE_TEST)
depends on OF && COMMON_CLK
depends on MMU
select QCOM_MDT_LOADER
select QCOM_MDT_LOADER if ARCH_QCOM
select REGULATOR
select DRM_KMS_HELPER
select DRM_PANEL

181
drivers/gpu/drm/msm/adreno/a5xx_gpu.c
View File

@ -15,7 +15,7 @@
#include <linux/cpumask.h>
#include <linux/qcom_scm.h>
#include <linux/dma-mapping.h>
#include <linux/of_reserved_mem.h>
#include <linux/of_address.h>
#include <linux/soc/qcom/mdt_loader.h>
#include "msm_gem.h"
#include "msm_mmu.h"
@ -26,16 +26,34 @@ static void a5xx_dump(struct msm_gpu *gpu);
#define GPU_PAS_ID 13
#if IS_ENABLED(CONFIG_QCOM_MDT_LOADER)
static int zap_shader_load_mdt(struct device *dev, const char *fwname)
{
const struct firmware *fw;
struct device_node *np;
struct resource r;
phys_addr_t mem_phys;
ssize_t mem_size;
void *mem_region = NULL;
int ret;
if (!IS_ENABLED(CONFIG_ARCH_QCOM))
return -EINVAL;
np = of_get_child_by_name(dev->of_node, "zap-shader");
if (!np)
return -ENODEV;
np = of_parse_phandle(np, "memory-region", 0);
if (!np)
return -EINVAL;
ret = of_address_to_resource(np, 0, &r);
if (ret)
return ret;
mem_phys = r.start;
mem_size = resource_size(&r);
/* Request the MDT file for the firmware */
ret = request_firmware(&fw, fwname, dev);
if (ret) {
@ -51,7 +69,7 @@ static int zap_shader_load_mdt(struct device *dev, const char *fwname)
}
/* Allocate memory for the firmware image */
mem_region = dmam_alloc_coherent(dev, mem_size, &mem_phys, GFP_KERNEL);
mem_region = memremap(mem_phys, mem_size, MEMREMAP_WC);
if (!mem_region) {
ret = -ENOMEM;
goto out;
@ -69,16 +87,13 @@ static int zap_shader_load_mdt(struct device *dev, const char *fwname)
DRM_DEV_ERROR(dev, "Unable to authorize the image\n");
out:
if (mem_region)
memunmap(mem_region);
release_firmware(fw);
return ret;
}
#else
static int zap_shader_load_mdt(struct device *dev, const char *fwname)
{
return -ENODEV;
}
#endif
static void a5xx_submit(struct msm_gpu *gpu, struct msm_gem_submit *submit,
struct msm_file_private *ctx)
@ -117,12 +132,10 @@ static void a5xx_submit(struct msm_gpu *gpu, struct msm_gem_submit *submit,
gpu->funcs->flush(gpu);
}
struct a5xx_hwcg {
static const struct {
u32 offset;
u32 value;
};
static const struct a5xx_hwcg a530_hwcg[] = {
} a5xx_hwcg[] = {
{REG_A5XX_RBBM_CLOCK_CNTL_SP0, 0x02222222},
{REG_A5XX_RBBM_CLOCK_CNTL_SP1, 0x02222222},
{REG_A5XX_RBBM_CLOCK_CNTL_SP2, 0x02222222},
@ -217,38 +230,16 @@ static const struct a5xx_hwcg a530_hwcg[] = {
{REG_A5XX_RBBM_CLOCK_DELAY_VFD, 0x00002222}
};
static const struct {
int (*test)(struct adreno_gpu *gpu);
const struct a5xx_hwcg *regs;
unsigned int count;
} a5xx_hwcg_regs[] = {
{ adreno_is_a530, a530_hwcg, ARRAY_SIZE(a530_hwcg), },
};
static void _a5xx_enable_hwcg(struct msm_gpu *gpu,
const struct a5xx_hwcg *regs, unsigned int count)
void a5xx_set_hwcg(struct msm_gpu *gpu, bool state)
{
unsigned int i;
for (i = 0; i < count; i++)
gpu_write(gpu, regs[i].offset, regs[i].value);
for (i = 0; i < ARRAY_SIZE(a5xx_hwcg); i++)
gpu_write(gpu, a5xx_hwcg[i].offset,
state ? a5xx_hwcg[i].value : 0);
gpu_write(gpu, REG_A5XX_RBBM_CLOCK_CNTL, 0xAAA8AA00);
gpu_write(gpu, REG_A5XX_RBBM_ISDB_CNT, 0x182);
}
static void a5xx_enable_hwcg(struct msm_gpu *gpu)
{
struct adreno_gpu *adreno_gpu = to_adreno_gpu(gpu);
unsigned int i;
for (i = 0; i < ARRAY_SIZE(a5xx_hwcg_regs); i++) {
if (a5xx_hwcg_regs[i].test(adreno_gpu)) {
_a5xx_enable_hwcg(gpu, a5xx_hwcg_regs[i].regs,
a5xx_hwcg_regs[i].count);
return;
}
}
gpu_write(gpu, REG_A5XX_RBBM_CLOCK_CNTL, state ? 0xAAA8AA00 : 0);
gpu_write(gpu, REG_A5XX_RBBM_ISDB_CNT, state ? 0x182 : 0x180);
}
static int a5xx_me_init(struct msm_gpu *gpu)
@ -377,45 +368,6 @@ static int a5xx_zap_shader_resume(struct msm_gpu *gpu)
return ret;
}
/* Set up a child device to "own" the zap shader */
static int a5xx_zap_shader_dev_init(struct device *parent, struct device *dev)
{
struct device_node *node;
int ret;
if (dev->parent)
return 0;
/* Find the sub-node for the zap shader */
node = of_get_child_by_name(parent->of_node, "zap-shader");
if (!node) {
DRM_DEV_ERROR(parent, "zap-shader not found in device tree\n");
return -ENODEV;
}
dev->parent = parent;
dev->of_node = node;
dev_set_name(dev, "adreno_zap_shader");
ret = device_register(dev);
if (ret) {
DRM_DEV_ERROR(parent, "Couldn't register zap shader device\n");
goto out;
}
ret = of_reserved_mem_device_init(dev);
if (ret) {
DRM_DEV_ERROR(parent, "Unable to set up the reserved memory\n");
device_unregister(dev);
}
out:
if (ret)
dev->parent = NULL;
return ret;
}
static int a5xx_zap_shader_init(struct msm_gpu *gpu)
{
static bool loaded;
@ -444,11 +396,7 @@ static int a5xx_zap_shader_init(struct msm_gpu *gpu)
return -ENODEV;
}
ret = a5xx_zap_shader_dev_init(&pdev->dev, &a5xx_gpu->zap_dev);
if (!ret)
ret = zap_shader_load_mdt(&a5xx_gpu->zap_dev,
adreno_gpu->info->zapfw);
ret = zap_shader_load_mdt(&pdev->dev, adreno_gpu->info->zapfw);
loaded = !ret;
@ -545,7 +493,7 @@ static int a5xx_hw_init(struct msm_gpu *gpu)
gpu_write(gpu, REG_A5XX_RBBM_AHB_CNTL1, 0xA6FFFFFF);
/* Enable HWCG */
a5xx_enable_hwcg(gpu);
a5xx_set_hwcg(gpu, true);
gpu_write(gpu, REG_A5XX_RBBM_AHB_CNTL2, 0x0000003F);
@ -691,9 +639,6 @@ static void a5xx_destroy(struct msm_gpu *gpu)
DBG("%s", gpu->name);
if (a5xx_gpu->zap_dev.parent)
device_unregister(&a5xx_gpu->zap_dev);
if (a5xx_gpu->pm4_bo) {
if (a5xx_gpu->pm4_iova)
msm_gem_put_iova(a5xx_gpu->pm4_bo, gpu->aspace);
@ -920,31 +865,30 @@ static const u32 a5xx_registers[] = {
0x0000, 0x0002, 0x0004, 0x0020, 0x0022, 0x0026, 0x0029, 0x002B,
0x002E, 0x0035, 0x0038, 0x0042, 0x0044, 0x0044, 0x0047, 0x0095,
0x0097, 0x00BB, 0x03A0, 0x0464, 0x0469, 0x046F, 0x04D2, 0x04D3,
0x04E0, 0x0533, 0x0540, 0x0555, 0xF400, 0xF400, 0xF800, 0xF807,
0x0800, 0x081A, 0x081F, 0x0841, 0x0860, 0x0860, 0x0880, 0x08A0,
0x0B00, 0x0B12, 0x0B15, 0x0B28, 0x0B78, 0x0B7F, 0x0BB0, 0x0BBD,
0x0BC0, 0x0BC6, 0x0BD0, 0x0C53, 0x0C60, 0x0C61, 0x0C80, 0x0C82,
0x0C84, 0x0C85, 0x0C90, 0x0C98, 0x0CA0, 0x0CA0, 0x0CB0, 0x0CB2,
0x2180, 0x2185, 0x2580, 0x2585, 0x0CC1, 0x0CC1, 0x0CC4, 0x0CC7,
0x0CCC, 0x0CCC, 0x0CD0, 0x0CD8, 0x0CE0, 0x0CE5, 0x0CE8, 0x0CE8,
0x0CEC, 0x0CF1, 0x0CFB, 0x0D0E, 0x2100, 0x211E, 0x2140, 0x2145,
0x2500, 0x251E, 0x2540, 0x2545, 0x0D10, 0x0D17, 0x0D20, 0x0D23,
0x0D30, 0x0D30, 0x20C0, 0x20C0, 0x24C0, 0x24C0, 0x0E40, 0x0E43,
0x0E4A, 0x0E4A, 0x0E50, 0x0E57, 0x0E60, 0x0E7C, 0x0E80, 0x0E8E,
0x0E90, 0x0E96, 0x0EA0, 0x0EA8, 0x0EB0, 0x0EB2, 0xE140, 0xE147,
0xE150, 0xE187, 0xE1A0, 0xE1A9, 0xE1B0, 0xE1B6, 0xE1C0, 0xE1C7,
0xE1D0, 0xE1D1, 0xE200, 0xE201, 0xE210, 0xE21C, 0xE240, 0xE268,
0xE000, 0xE006, 0xE010, 0xE09A, 0xE0A0, 0xE0A4, 0xE0AA, 0xE0EB,
0xE100, 0xE105, 0xE380, 0xE38F, 0xE3B0, 0xE3B0, 0xE400, 0xE405,
0xE408, 0xE4E9, 0xE4F0, 0xE4F0, 0xE280, 0xE280, 0xE282, 0xE2A3,
0xE2A5, 0xE2C2, 0xE940, 0xE947, 0xE950, 0xE987, 0xE9A0, 0xE9A9,
0xE9B0, 0xE9B6, 0xE9C0, 0xE9C7, 0xE9D0, 0xE9D1, 0xEA00, 0xEA01,
0xEA10, 0xEA1C, 0xEA40, 0xEA68, 0xE800, 0xE806, 0xE810, 0xE89A,
0xE8A0, 0xE8A4, 0xE8AA, 0xE8EB, 0xE900, 0xE905, 0xEB80, 0xEB8F,
0xEBB0, 0xEBB0, 0xEC00, 0xEC05, 0xEC08, 0xECE9, 0xECF0, 0xECF0,
0xEA80, 0xEA80, 0xEA82, 0xEAA3, 0xEAA5, 0xEAC2, 0xA800, 0xA8FF,
0xAC60, 0xAC60, 0xB000, 0xB97F, 0xB9A0, 0xB9BF,
~0
0x04E0, 0x0533, 0x0540, 0x0555, 0x0800, 0x081A, 0x081F, 0x0841,
0x0860, 0x0860, 0x0880, 0x08A0, 0x0B00, 0x0B12, 0x0B15, 0x0B28,
0x0B78, 0x0B7F, 0x0BB0, 0x0BBD, 0x0BC0, 0x0BC6, 0x0BD0, 0x0C53,
0x0C60, 0x0C61, 0x0C80, 0x0C82, 0x0C84, 0x0C85, 0x0C90, 0x0C98,
0x0CA0, 0x0CA0, 0x0CB0, 0x0CB2, 0x2180, 0x2185, 0x2580, 0x2585,
0x0CC1, 0x0CC1, 0x0CC4, 0x0CC7, 0x0CCC, 0x0CCC, 0x0CD0, 0x0CD8,
0x0CE0, 0x0CE5, 0x0CE8, 0x0CE8, 0x0CEC, 0x0CF1, 0x0CFB, 0x0D0E,
0x2100, 0x211E, 0x2140, 0x2145, 0x2500, 0x251E, 0x2540, 0x2545,
0x0D10, 0x0D17, 0x0D20, 0x0D23, 0x0D30, 0x0D30, 0x20C0, 0x20C0,
0x24C0, 0x24C0, 0x0E40, 0x0E43, 0x0E4A, 0x0E4A, 0x0E50, 0x0E57,
0x0E60, 0x0E7C, 0x0E80, 0x0E8E, 0x0E90, 0x0E96, 0x0EA0, 0x0EA8,
0x0EB0, 0x0EB2, 0xE140, 0xE147, 0xE150, 0xE187, 0xE1A0, 0xE1A9,
0xE1B0, 0xE1B6, 0xE1C0, 0xE1C7, 0xE1D0, 0xE1D1, 0xE200, 0xE201,
0xE210, 0xE21C, 0xE240, 0xE268, 0xE000, 0xE006, 0xE010, 0xE09A,
0xE0A0, 0xE0A4, 0xE0AA, 0xE0EB, 0xE100, 0xE105, 0xE380, 0xE38F,
0xE3B0, 0xE3B0, 0xE400, 0xE405, 0xE408, 0xE4E9, 0xE4F0, 0xE4F0,
0xE280, 0xE280, 0xE282, 0xE2A3, 0xE2A5, 0xE2C2, 0xE940, 0xE947,
0xE950, 0xE987, 0xE9A0, 0xE9A9, 0xE9B0, 0xE9B6, 0xE9C0, 0xE9C7,
0xE9D0, 0xE9D1, 0xEA00, 0xEA01, 0xEA10, 0xEA1C, 0xEA40, 0xEA68,
0xE800, 0xE806, 0xE810, 0xE89A, 0xE8A0, 0xE8A4, 0xE8AA, 0xE8EB,
0xE900, 0xE905, 0xEB80, 0xEB8F, 0xEBB0, 0xEBB0, 0xEC00, 0xEC05,
0xEC08, 0xECE9, 0xECF0, 0xECF0, 0xEA80, 0xEA80, 0xEA82, 0xEAA3,
0xEAA5, 0xEAC2, 0xA800, 0xA8FF, 0xAC60, 0xAC60, 0xB000, 0xB97F,
0xB9A0, 0xB9BF, ~0
};
static void a5xx_dump(struct msm_gpu *gpu)
@ -1020,7 +964,14 @@ static void a5xx_show(struct msm_gpu *gpu, struct seq_file *m)
{
seq_printf(m, "status: %08x\n",
gpu_read(gpu, REG_A5XX_RBBM_STATUS));
/*
* Temporarily disable hardware clock gating before going into
* adreno_show to avoid issues while reading the registers
*/
a5xx_set_hwcg(gpu, false);
adreno_show(gpu, m);
a5xx_set_hwcg(gpu, true);
}
#endif

3
drivers/gpu/drm/msm/adreno/a5xx_gpu.h
View File

@ -36,8 +36,6 @@ struct a5xx_gpu {
uint32_t gpmu_dwords;
uint32_t lm_leakage;
struct device zap_dev;
};
#define to_a5xx_gpu(x) container_of(x, struct a5xx_gpu, base)
@ -59,5 +57,6 @@ static inline int spin_usecs(struct msm_gpu *gpu, uint32_t usecs,
}
bool a5xx_idle(struct msm_gpu *gpu);
void a5xx_set_hwcg(struct msm_gpu *gpu, bool state);
#endif /* __A5XX_GPU_H__ */

11
drivers/gpu/drm/msm/adreno/adreno_gpu.c
View File

@ -48,8 +48,15 @@ int adreno_get_param(struct msm_gpu *gpu, uint32_t param, uint64_t *value)
*value = adreno_gpu->base.fast_rate;
return 0;
case MSM_PARAM_TIMESTAMP:
if (adreno_gpu->funcs->get_timestamp)
return adreno_gpu->funcs->get_timestamp(gpu, value);
if (adreno_gpu->funcs->get_timestamp) {
int ret;
pm_runtime_get_sync(&gpu->pdev->dev);
ret = adreno_gpu->funcs->get_timestamp(gpu, value);
pm_runtime_put_autosuspend(&gpu->pdev->dev);
return ret;
}
return -EINVAL;
default:
DBG("%s: invalid param: %u", gpu->name, param);

14
drivers/gpu/drm/msm/dsi/dsi_host.c
View File

@ -2137,6 +2137,13 @@ void msm_dsi_host_get_phy_clk_req(struct mipi_dsi_host *host,
struct msm_dsi_phy_clk_request *clk_req)
{
struct msm_dsi_host *msm_host = to_msm_dsi_host(host);
int ret;
ret = dsi_calc_clk_rate(msm_host);
if (ret) {
pr_err("%s: unable to calc clk rate, %d\n", __func__, ret);
return;
}
clk_req->bitclk_rate = msm_host->byte_clk_rate * 8;
clk_req->escclk_rate = msm_host->esc_clk_rate;
@ -2280,7 +2287,6 @@ int msm_dsi_host_set_display_mode(struct mipi_dsi_host *host,
struct drm_display_mode *mode)
{
struct msm_dsi_host *msm_host = to_msm_dsi_host(host);
int ret;
if (msm_host->mode) {
drm_mode_destroy(msm_host->dev, msm_host->mode);
@ -2293,12 +2299,6 @@ int msm_dsi_host_set_display_mode(struct mipi_dsi_host *host,
return -ENOMEM;
}
ret = dsi_calc_clk_rate(msm_host);
if (ret) {
pr_err("%s: unable to calc clk rate, %d\n", __func__, ret);
return ret;
}
return 0;
}

12
drivers/gpu/drm/msm/mdp/mdp5/mdp5_crtc.c
View File

@ -221,8 +221,8 @@ static void blend_setup(struct drm_crtc *crtc)
struct mdp5_ctl *ctl = mdp5_cstate->ctl;
uint32_t blend_op, fg_alpha, bg_alpha, ctl_blend_flags = 0;
unsigned long flags;
enum mdp5_pipe stage[STAGE_MAX + 1][MAX_PIPE_STAGE] = { SSPP_NONE };
enum mdp5_pipe r_stage[STAGE_MAX + 1][MAX_PIPE_STAGE] = { SSPP_NONE };
enum mdp5_pipe stage[STAGE_MAX + 1][MAX_PIPE_STAGE] = { { SSPP_NONE } };
enum mdp5_pipe r_stage[STAGE_MAX + 1][MAX_PIPE_STAGE] = { { SSPP_NONE } };
int i, plane_cnt = 0;
bool bg_alpha_enabled = false;
u32 mixer_op_mode = 0;
@ -753,6 +753,7 @@ static int mdp5_crtc_cursor_set(struct drm_crtc *crtc,
if (!handle) {
DBG("Cursor off");
cursor_enable = false;
mdp5_enable(mdp5_kms);
goto set_cursor;
}
@ -776,6 +777,8 @@ static int mdp5_crtc_cursor_set(struct drm_crtc *crtc,
get_roi(crtc, &roi_w, &roi_h);
mdp5_enable(mdp5_kms);
mdp5_write(mdp5_kms, REG_MDP5_LM_CURSOR_STRIDE(lm), stride);
mdp5_write(mdp5_kms, REG_MDP5_LM_CURSOR_FORMAT(lm),
MDP5_LM_CURSOR_FORMAT_FORMAT(CURSOR_FMT_ARGB8888));
@ -804,6 +807,7 @@ set_cursor:
crtc_flush(crtc, flush_mask);
end:
mdp5_disable(mdp5_kms);
if (old_bo) {
drm_flip_work_queue(&mdp5_crtc->unref_cursor_work, old_bo);
/* enable vblank to complete cursor work: */
@ -836,6 +840,8 @@ static int mdp5_crtc_cursor_move(struct drm_crtc *crtc, int x, int y)
get_roi(crtc, &roi_w, &roi_h);
mdp5_enable(mdp5_kms);
spin_lock_irqsave(&mdp5_crtc->cursor.lock, flags);
mdp5_write(mdp5_kms, REG_MDP5_LM_CURSOR_SIZE(lm),
MDP5_LM_CURSOR_SIZE_ROI_H(roi_h) |
@ -847,6 +853,8 @@ static int mdp5_crtc_cursor_move(struct drm_crtc *crtc, int x, int y)
crtc_flush(crtc, flush_mask);
mdp5_disable(mdp5_kms);
return 0;
}

2
drivers/gpu/drm/msm/mdp/mdp5/mdp5_encoder.c
View File

@ -299,7 +299,7 @@ static void mdp5_encoder_enable(struct drm_encoder *encoder)
struct mdp5_interface *intf = mdp5_encoder->intf;
if (intf->mode == MDP5_INTF_DSI_MODE_COMMAND)
mdp5_cmd_encoder_disable(encoder);
mdp5_cmd_encoder_enable(encoder);
else
mdp5_vid_encoder_enable(encoder);
}

12
drivers/gpu/drm/msm/mdp/mdp5/mdp5_kms.c
View File

@ -502,7 +502,7 @@ static int get_clk(struct platform_device *pdev, struct clk **clkp,
const char *name, bool mandatory)
{
struct device *dev = &pdev->dev;
struct clk *clk = devm_clk_get(dev, name);
struct clk *clk = msm_clk_get(pdev, name);
if (IS_ERR(clk) && mandatory) {
dev_err(dev, "failed to get %s (%ld)\n", name, PTR_ERR(clk));
return PTR_ERR(clk);
@ -887,21 +887,21 @@ static int mdp5_init(struct platform_device *pdev, struct drm_device *dev)
}
/* mandatory clocks: */
ret = get_clk(pdev, &mdp5_kms->axi_clk, "bus_clk", true);
ret = get_clk(pdev, &mdp5_kms->axi_clk, "bus", true);
if (ret)
goto fail;
ret = get_clk(pdev, &mdp5_kms->ahb_clk, "iface_clk", true);
ret = get_clk(pdev, &mdp5_kms->ahb_clk, "iface", true);
if (ret)
goto fail;
ret = get_clk(pdev, &mdp5_kms->core_clk, "core_clk", true);
ret = get_clk(pdev, &mdp5_kms->core_clk, "core", true);
if (ret)
goto fail;
ret = get_clk(pdev, &mdp5_kms->vsync_clk, "vsync_clk", true);
ret = get_clk(pdev, &mdp5_kms->vsync_clk, "vsync", true);
if (ret)
goto fail;
/* optional clocks: */
get_clk(pdev, &mdp5_kms->lut_clk, "lut_clk", false);
get_clk(pdev, &mdp5_kms->lut_clk, "lut", false);
/* we need to set a default rate before enabling. Set a safe
* rate first, then figure out hw revision, and then set a

4
drivers/gpu/drm/msm/mdp/mdp5/mdp5_plane.c
View File

@ -890,8 +890,8 @@ static int mdp5_plane_mode_set(struct drm_plane *plane,
struct mdp5_hw_pipe *right_hwpipe;
const struct mdp_format *format;
uint32_t nplanes, config = 0;
struct phase_step step = { 0 };
struct pixel_ext pe = { 0 };
struct phase_step step = { { 0 } };
struct pixel_ext pe = { { 0 } };
uint32_t hdecm = 0, vdecm = 0;
uint32_t pix_format;
unsigned int rotation;

12
drivers/gpu/drm/msm/msm_gem.c
View File

@ -383,8 +383,10 @@ int msm_gem_get_iova(struct drm_gem_object *obj,
struct page **pages;
vma = add_vma(obj, aspace);
if (IS_ERR(vma))
return PTR_ERR(vma);
if (IS_ERR(vma)) {
ret = PTR_ERR(vma);
goto unlock;
}
pages = get_pages(obj);
if (IS_ERR(pages)) {
@ -405,7 +407,7 @@ int msm_gem_get_iova(struct drm_gem_object *obj,
fail:
del_vma(vma);
unlock:
mutex_unlock(&msm_obj->lock);
return ret;
}
@ -928,8 +930,12 @@ static struct drm_gem_object *_msm_gem_new(struct drm_device *dev,
if (use_vram) {
struct msm_gem_vma *vma;
struct page **pages;
struct msm_gem_object *msm_obj = to_msm_bo(obj);
mutex_lock(&msm_obj->lock);
vma = add_vma(obj, NULL);
mutex_unlock(&msm_obj->lock);
if (IS_ERR(vma)) {
ret = PTR_ERR(vma);
goto fail;

6
drivers/gpu/drm/msm/msm_gem_submit.c
View File

@ -34,8 +34,8 @@ static struct msm_gem_submit *submit_create(struct drm_device *dev,
struct msm_gpu *gpu, uint32_t nr_bos, uint32_t nr_cmds)
{
struct msm_gem_submit *submit;
uint64_t sz = sizeof(*submit) + (nr_bos * sizeof(submit->bos[0])) +
(nr_cmds * sizeof(submit->cmd[0]));
uint64_t sz = sizeof(*submit) + ((u64)nr_bos * sizeof(submit->bos[0])) +
((u64)nr_cmds * sizeof(submit->cmd[0]));
if (sz > SIZE_MAX)
return NULL;
@ -451,7 +451,7 @@ int msm_ioctl_gem_submit(struct drm_device *dev, void *data,
if (ret)
goto out;
if (!(args->fence & MSM_SUBMIT_NO_IMPLICIT)) {
if (!(args->flags & MSM_SUBMIT_NO_IMPLICIT)) {
ret = submit_fence_sync(submit);
if (ret)
goto out;

2
drivers/gpu/drm/msm/msm_gem_vma.c
View File

@ -42,7 +42,7 @@ void
msm_gem_unmap_vma(struct msm_gem_address_space *aspace,
struct msm_gem_vma *vma, struct sg_table *sgt)
{
if (!vma->iova)
if (!aspace || !vma->iova)
return;
if (aspace->mmu) {

2
drivers/gpu/drm/nouveau/nvkm/engine/disp/base.c
View File

@ -267,6 +267,8 @@ nvkm_disp_oneinit(struct nvkm_engine *engine)
/* Create output path objects for each VBIOS display path. */
i = -1;
while ((data = dcb_outp_parse(bios, ++i, &ver, &hdr, &dcbE))) {
if (ver < 0x40) /* No support for chipsets prior to NV50. */
break;
if (dcbE.type == DCB_OUTPUT_UNUSED)
continue;
if (dcbE.type == DCB_OUTPUT_EOL)

41
drivers/gpu/drm/rockchip/rockchip_drm_vop.c
View File

@ -500,7 +500,7 @@ static void vop_line_flag_irq_disable(struct vop *vop)
static int vop_enable(struct drm_crtc *crtc)
{
struct vop *vop = to_vop(crtc);
int ret;
int ret, i;
ret = pm_runtime_get_sync(vop->dev);
if (ret < 0) {
@ -533,6 +533,20 @@ static int vop_enable(struct drm_crtc *crtc)
}
memcpy(vop->regs, vop->regsbak, vop->len);
/*
* We need to make sure that all windows are disabled before we
* enable the crtc. Otherwise we might try to scan from a destroyed
* buffer later.
*/
for (i = 0; i < vop->data->win_size; i++) {
struct vop_win *vop_win = &vop->win[i];
const struct vop_win_data *win = vop_win->data;
spin_lock(&vop->reg_lock);
VOP_WIN_SET(vop, win, enable, 0);
spin_unlock(&vop->reg_lock);
}
vop_cfg_done(vop);
/*
@ -566,28 +580,11 @@ err_put_pm_runtime:
static void vop_crtc_disable(struct drm_crtc *crtc)
{
struct vop *vop = to_vop(crtc);
int i;
WARN_ON(vop->event);
rockchip_drm_psr_deactivate(&vop->crtc);
/*
* We need to make sure that all windows are disabled before we
* disable that crtc. Otherwise we might try to scan from a destroyed
* buffer later.
*/
for (i = 0; i < vop->data->win_size; i++) {
struct vop_win *vop_win = &vop->win[i];
const struct vop_win_data *win = vop_win->data;
spin_lock(&vop->reg_lock);
VOP_WIN_SET(vop, win, enable, 0);
spin_unlock(&vop->reg_lock);
}
vop_cfg_done(vop);
drm_crtc_vblank_off(crtc);
/*
@ -682,8 +679,10 @@ static int vop_plane_atomic_check(struct drm_plane *plane,
* Src.x1 can be odd when do clip, but yuv plane start point
* need align with 2 pixel.
*/
if (is_yuv_support(fb->format->format) && ((state->src.x1 >> 16) % 2))
if (is_yuv_support(fb->format->format) && ((state->src.x1 >> 16) % 2)) {
DRM_ERROR("Invalid Source: Yuv format not support odd xpos\n");
return -EINVAL;
}
return 0;
}
@ -764,7 +763,7 @@ static void vop_plane_atomic_update(struct drm_plane *plane,
spin_lock(&vop->reg_lock);
VOP_WIN_SET(vop, win, format, format);
VOP_WIN_SET(vop, win, yrgb_vir, fb->pitches[0] >> 2);
VOP_WIN_SET(vop, win, yrgb_vir, DIV_ROUND_UP(fb->pitches[0], 4));
VOP_WIN_SET(vop, win, yrgb_mst, dma_addr);
if (is_yuv_support(fb->format->format)) {
int hsub = drm_format_horz_chroma_subsampling(fb->format->format);
@ -778,7 +777,7 @@ static void vop_plane_atomic_update(struct drm_plane *plane,
offset += (src->y1 >> 16) * fb->pitches[1] / vsub;
dma_addr = rk_uv_obj->dma_addr + offset + fb->offsets[1];
VOP_WIN_SET(vop, win, uv_vir, fb->pitches[1] >> 2);
VOP_WIN_SET(vop, win, uv_vir, DIV_ROUND_UP(fb->pitches[1], 4));
VOP_WIN_SET(vop, win, uv_mst, dma_addr);
}

3
drivers/gpu/drm/rockchip/rockchip_drm_vop.h
View File

@ -282,6 +282,9 @@ static inline uint16_t scl_get_bili_dn_vskip(int src_h, int dst_h,
act_height = (src_h + vskiplines - 1) / vskiplines;
if (act_height == dst_h)
return GET_SCL_FT_BILI_DN(src_h, dst_h) / vskiplines;
return GET_SCL_FT_BILI_DN(act_height, dst_h);
}

1
drivers/gpu/drm/stm/Kconfig
View File

@ -7,7 +7,6 @@ config DRM_STM
select DRM_PANEL
select VIDEOMODE_HELPERS
select FB_PROVIDE_GET_FB_UNMAPPED_AREA
default y
help
Enable support for the on-chip display controller on

2
drivers/i2c/busses/Kconfig
View File

@ -983,7 +983,7 @@ config I2C_UNIPHIER_F
config I2C_VERSATILE
tristate "ARM Versatile/Realview I2C bus support"
depends on ARCH_VERSATILE || ARCH_REALVIEW || ARCH_VEXPRESS || COMPILE_TEST
depends on ARCH_MPS2 || ARCH_VERSATILE || ARCH_REALVIEW || ARCH_VEXPRESS || COMPILE_TEST
select I2C_ALGOBIT
help
Say yes if you want to support the I2C serial bus on ARMs Versatile

6
drivers/i2c/busses/i2c-designware-platdrv.c
View File

@ -298,6 +298,9 @@ static int dw_i2c_plat_probe(struct platform_device *pdev)
}
acpi_speed = i2c_acpi_find_bus_speed(&pdev->dev);
/* Some broken DSTDs use 1MiHz instead of 1MHz */
if (acpi_speed == 1048576)
acpi_speed = 1000000;
/*
* Find bus speed from the "clock-frequency" device property, ACPI
* or by using fast mode if neither is set.
@ -319,7 +322,8 @@ static int dw_i2c_plat_probe(struct platform_device *pdev)
if (dev->clk_freq != 100000 && dev->clk_freq != 400000
&& dev->clk_freq != 1000000 && dev->clk_freq != 3400000) {
dev_err(&pdev->dev,
"Only 100kHz, 400kHz, 1MHz and 3.4MHz supported");
"%d Hz is unsupported, only 100kHz, 400kHz, 1MHz and 3.4MHz are supported\n",
dev->clk_freq);
ret = -EINVAL;
goto exit_reset;
}

19
drivers/i2c/i2c-core-acpi.c
View File

@ -230,6 +230,16 @@ void i2c_acpi_register_devices(struct i2c_adapter *adap)
dev_warn(&adap->dev, "failed to enumerate I2C slaves\n");
}
const struct acpi_device_id *
i2c_acpi_match_device(const struct acpi_device_id *matches,
struct i2c_client *client)
{
if (!(client && matches))
return NULL;
return acpi_match_device(matches, &client->dev);
}
static acpi_status i2c_acpi_lookup_speed(acpi_handle handle, u32 level,
void *data, void **return_value)
{
@ -289,7 +299,7 @@ u32 i2c_acpi_find_bus_speed(struct device *dev)
}
EXPORT_SYMBOL_GPL(i2c_acpi_find_bus_speed);
static int i2c_acpi_match_adapter(struct device *dev, void *data)
static int i2c_acpi_find_match_adapter(struct device *dev, void *data)
{
struct i2c_adapter *adapter = i2c_verify_adapter(dev);
@ -299,7 +309,7 @@ static int i2c_acpi_match_adapter(struct device *dev, void *data)
return ACPI_HANDLE(dev) == (acpi_handle)data;
}
static int i2c_acpi_match_device(struct device *dev, void *data)
static int i2c_acpi_find_match_device(struct device *dev, void *data)
{
return ACPI_COMPANION(dev) == data;
}
@ -309,7 +319,7 @@ static struct i2c_adapter *i2c_acpi_find_adapter_by_handle(acpi_handle handle)
struct device *dev;
dev = bus_find_device(&i2c_bus_type, NULL, handle,
i2c_acpi_match_adapter);
i2c_acpi_find_match_adapter);
return dev ? i2c_verify_adapter(dev) : NULL;
}
@ -317,7 +327,8 @@ static struct i2c_client *i2c_acpi_find_client_by_adev(struct acpi_device *adev)
{
struct device *dev;
dev = bus_find_device(&i2c_bus_type, NULL, adev, i2c_acpi_match_device);
dev = bus_find_device(&i2c_bus_type, NULL, adev,
i2c_acpi_find_match_device);
return dev ? i2c_verify_client(dev) : NULL;
}

1
drivers/i2c/i2c-core-base.c
View File

@ -357,6 +357,7 @@ static int i2c_device_probe(struct device *dev)
* Tree match table entry is supplied for the probing device.
*/
if (!driver->id_table &&
!i2c_acpi_match_device(dev->driver->acpi_match_table, client) &&
!i2c_of_match_device(dev->driver->of_match_table, client))
return -ENODEV;

9
drivers/i2c/i2c-core.h
View File

@ -31,9 +31,18 @@ int i2c_check_addr_validity(unsigned addr, unsigned short flags);
int i2c_check_7bit_addr_validity_strict(unsigned short addr);
#ifdef CONFIG_ACPI
const struct acpi_device_id *
i2c_acpi_match_device(const struct acpi_device_id *matches,
struct i2c_client *client);
void i2c_acpi_register_devices(struct i2c_adapter *adap);
#else /* CONFIG_ACPI */
static inline void i2c_acpi_register_devices(struct i2c_adapter *adap) { }
static inline const struct acpi_device_id *
i2c_acpi_match_device(const struct acpi_device_id *matches,
struct i2c_client *client)
{
return NULL;
}
#endif /* CONFIG_ACPI */
extern struct notifier_block i2c_acpi_notifier;

2
drivers/i2c/muxes/Kconfig
View File

@ -83,7 +83,7 @@ config I2C_MUX_PINCTRL
different sets of pins at run-time.
This driver can also be built as a module. If so, the module will be
called pinctrl-i2cmux.
called i2c-mux-pinctrl.
config I2C_MUX_REG
tristate "Register-based I2C multiplexer"

9
drivers/iio/accel/bmc150-accel-core.c
View File

@ -193,7 +193,6 @@ struct bmc150_accel_data {
struct regmap *regmap;
int irq;
struct bmc150_accel_interrupt interrupts[BMC150_ACCEL_INTERRUPTS];
atomic_t active_intr;
struct bmc150_accel_trigger triggers[BMC150_ACCEL_TRIGGERS];
struct mutex mutex;
u8 fifo_mode, watermark;
@ -493,11 +492,6 @@ static int bmc150_accel_set_interrupt(struct bmc150_accel_data *data, int i,
goto out_fix_power_state;
}
if (state)
atomic_inc(&data->active_intr);
else
atomic_dec(&data->active_intr);
return 0;
out_fix_power_state:
@ -1710,8 +1704,7 @@ static int bmc150_accel_resume(struct device *dev)
struct bmc150_accel_data *data = iio_priv(indio_dev);
mutex_lock(&data->mutex);
if (atomic_read(&data->active_intr))
bmc150_accel_set_mode(data, BMC150_ACCEL_SLEEP_MODE_NORMAL, 0);
bmc150_accel_set_mode(data, BMC150_ACCEL_SLEEP_MODE_NORMAL, 0);
bmc150_accel_fifo_set_mode(data);
mutex_unlock(&data->mutex);

32
drivers/iio/accel/st_accel_core.c
View File

@ -166,6 +166,10 @@ static const struct st_sensor_settings st_accel_sensors_settings[] = {
.mask_ihl = 0x02,
.addr_stat_drdy = ST_SENSORS_DEFAULT_STAT_ADDR,
},
.sim = {
.addr = 0x23,
.value = BIT(0),
},
.multi_read_bit = true,
.bootime = 2,
},
@ -234,6 +238,10 @@ static const struct st_sensor_settings st_accel_sensors_settings[] = {
.mask_od = 0x40,
.addr_stat_drdy = ST_SENSORS_DEFAULT_STAT_ADDR,
},
.sim = {
.addr = 0x23,
.value = BIT(0),
},
.multi_read_bit = true,
.bootime = 2,
},
@ -316,6 +324,10 @@ static const struct st_sensor_settings st_accel_sensors_settings[] = {
.en_mask = 0x08,
},
},
.sim = {
.addr = 0x24,
.value = BIT(0),
},
.multi_read_bit = false,
.bootime = 2,
},
@ -379,6 +391,10 @@ static const struct st_sensor_settings st_accel_sensors_settings[] = {
.mask_int1 = 0x04,
.addr_stat_drdy = ST_SENSORS_DEFAULT_STAT_ADDR,
},
.sim = {
.addr = 0x21,
.value = BIT(1),
},
.multi_read_bit = true,
.bootime = 2, /* guess */
},
@ -437,6 +453,10 @@ static const struct st_sensor_settings st_accel_sensors_settings[] = {
.mask_od = 0x40,
.addr_stat_drdy = ST_SENSORS_DEFAULT_STAT_ADDR,
},
.sim = {
.addr = 0x21,
.value = BIT(7),
},
.multi_read_bit = false,
.bootime = 2, /* guess */
},
@ -499,6 +519,10 @@ static const struct st_sensor_settings st_accel_sensors_settings[] = {
.addr_ihl = 0x22,
.mask_ihl = 0x80,
},
.sim = {
.addr = 0x23,
.value = BIT(0),
},
.multi_read_bit = true,
.bootime = 2,
},
@ -547,6 +571,10 @@ static const struct st_sensor_settings st_accel_sensors_settings[] = {
.mask_int1 = 0x04,
.addr_stat_drdy = ST_SENSORS_DEFAULT_STAT_ADDR,
},
.sim = {
.addr = 0x21,
.value = BIT(1),
},
.multi_read_bit = false,
.bootime = 2,
},
@ -614,6 +642,10 @@ static const struct st_sensor_settings st_accel_sensors_settings[] = {
.mask_ihl = 0x02,
.addr_stat_drdy = ST_SENSORS_DEFAULT_STAT_ADDR,
},
.sim = {
.addr = 0x23,
.value = BIT(0),
},
.multi_read_bit = true,
.bootime = 2,
},

26
drivers/iio/adc/aspeed_adc.c
View File

@ -22,6 +22,7 @@
#include <linux/iio/iio.h>
#include <linux/iio/driver.h>
#include <linux/iopoll.h>
#define ASPEED_RESOLUTION_BITS 10
#define ASPEED_CLOCKS_PER_SAMPLE 12
@ -38,11 +39,17 @@
#define ASPEED_ENGINE_ENABLE BIT(0)
#define ASPEED_ADC_CTRL_INIT_RDY BIT(8)
#define ASPEED_ADC_INIT_POLLING_TIME 500
#define ASPEED_ADC_INIT_TIMEOUT 500000
struct aspeed_adc_model_data {
const char *model_name;
unsigned int min_sampling_rate; // Hz
unsigned int max_sampling_rate; // Hz
unsigned int vref_voltage; // mV
bool wait_init_sequence;
};
struct aspeed_adc_data {
@ -211,6 +218,24 @@ static int aspeed_adc_probe(struct platform_device *pdev)
goto scaler_error;
}
model_data = of_device_get_match_data(&pdev->dev);
if (model_data->wait_init_sequence) {
/* Enable engine in normal mode. */
writel(ASPEED_OPERATION_MODE_NORMAL | ASPEED_ENGINE_ENABLE,
data->base + ASPEED_REG_ENGINE_CONTROL);
/* Wait for initial sequence complete. */
ret = readl_poll_timeout(data->base + ASPEED_REG_ENGINE_CONTROL,
adc_engine_control_reg_val,
adc_engine_control_reg_val &
ASPEED_ADC_CTRL_INIT_RDY,
ASPEED_ADC_INIT_POLLING_TIME,
ASPEED_ADC_INIT_TIMEOUT);
if (ret)
goto scaler_error;
}
/* Start all channels in normal mode. */
ret = clk_prepare_enable(data->clk_scaler->clk);
if (ret)
@ -274,6 +299,7 @@ static const struct aspeed_adc_model_data ast2500_model_data = {
.vref_voltage = 1800, // mV
.min_sampling_rate = 1,
.max_sampling_rate = 1000000,
.wait_init_sequence = true,
};
static const struct of_device_id aspeed_adc_matches[] = {

42
drivers/iio/adc/axp288_adc.c
View File

@ -28,6 +28,8 @@
#include <linux/iio/driver.h>
#define AXP288_ADC_EN_MASK 0xF1
#define AXP288_ADC_TS_PIN_GPADC 0xF2
#define AXP288_ADC_TS_PIN_ON 0xF3
enum axp288_adc_id {
AXP288_ADC_TS,
@ -121,6 +123,26 @@ static int axp288_adc_read_channel(int *val, unsigned long address,
return IIO_VAL_INT;
}
static int axp288_adc_set_ts(struct regmap *regmap, unsigned int mode,
unsigned long address)
{
int ret;
/* channels other than GPADC do not need to switch TS pin */
if (address != AXP288_GP_ADC_H)
return 0;
ret = regmap_write(regmap, AXP288_ADC_TS_PIN_CTRL, mode);
if (ret)
return ret;
/* When switching to the GPADC pin give things some time to settle */
if (mode == AXP288_ADC_TS_PIN_GPADC)
usleep_range(6000, 10000);
return 0;
}
static int axp288_adc_read_raw(struct iio_dev *indio_dev,
struct iio_chan_spec const *chan,
int *val, int *val2, long mask)
@ -131,7 +153,16 @@ static int axp288_adc_read_raw(struct iio_dev *indio_dev,
mutex_lock(&indio_dev->mlock);
switch (mask) {
case IIO_CHAN_INFO_RAW:
if (axp288_adc_set_ts(info->regmap, AXP288_ADC_TS_PIN_GPADC,
chan->address)) {
dev_err(&indio_dev->dev, "GPADC mode\n");
ret = -EINVAL;
break;
}
ret = axp288_adc_read_channel(val, chan->address, info->regmap);
if (axp288_adc_set_ts(info->regmap, AXP288_ADC_TS_PIN_ON,
chan->address))
dev_err(&indio_dev->dev, "TS pin restore\n");
break;
default:
ret = -EINVAL;
@ -141,6 +172,15 @@ static int axp288_adc_read_raw(struct iio_dev *indio_dev,
return ret;
}
static int axp288_adc_set_state(struct regmap *regmap)
{
/* ADC should be always enabled for internal FG to function */
if (regmap_write(regmap, AXP288_ADC_TS_PIN_CTRL, AXP288_ADC_TS_PIN_ON))
return -EIO;
return regmap_write(regmap, AXP20X_ADC_EN1, AXP288_ADC_EN_MASK);
}
static const struct iio_info axp288_adc_iio_info = {
.read_raw = &axp288_adc_read_raw,
.driver_module = THIS_MODULE,
@ -169,7 +209,7 @@ static int axp288_adc_probe(struct platform_device *pdev)
* Set ADC to enabled state at all time, including system suspend.
* otherwise internal fuel gauge functionality may be affected.
*/
ret = regmap_write(info->regmap, AXP20X_ADC_EN1, AXP288_ADC_EN_MASK);
ret = axp288_adc_set_state(axp20x->regmap);
if (ret) {
dev_err(&pdev->dev, "unable to enable ADC device\n");
return ret;

3
drivers/iio/adc/sun4i-gpadc-iio.c
View File

@ -256,6 +256,7 @@ static int sun4i_gpadc_read(struct iio_dev *indio_dev, int channel, int *val,
err:
pm_runtime_put_autosuspend(indio_dev->dev.parent);
disable_irq(irq);
mutex_unlock(&info->mutex);
return ret;
@ -365,7 +366,6 @@ static irqreturn_t sun4i_gpadc_temp_data_irq_handler(int irq, void *dev_id)
complete(&info->completion);
out:
disable_irq_nosync(info->temp_data_irq);
return IRQ_HANDLED;
}
@ -380,7 +380,6 @@ static irqreturn_t sun4i_gpadc_fifo_data_irq_handler(int irq, void *dev_id)
complete(&info->completion);
out:
disable_irq_nosync(info->fifo_data_irq);
return IRQ_HANDLED;
}

2
drivers/iio/adc/vf610_adc.c
View File

@ -77,7 +77,7 @@
#define VF610_ADC_ADSTS_MASK 0x300
#define VF610_ADC_ADLPC_EN 0x80
#define VF610_ADC_ADHSC_EN 0x400
#define VF610_ADC_REFSEL_VALT 0x100
#define VF610_ADC_REFSEL_VALT 0x800
#define VF610_ADC_REFSEL_VBG 0x1000
#define VF610_ADC_ADTRG_HARD 0x2000
#define VF610_ADC_AVGS_8 0x4000

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