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-rw-r--r--arch/arm64/Kconfig8
-rw-r--r--arch/arm64/boot/dts/Makefile1
-rw-r--r--arch/arm64/include/asm/compat.h6
-rw-r--r--arch/arm64/include/asm/dma-mapping.h1
-rw-r--r--arch/arm64/include/asm/pgtable.h36
-rw-r--r--arch/arm64/include/asm/unistd.h1
-rw-r--r--arch/arm64/include/asm/unistd32.h7
-rw-r--r--arch/arm64/kernel/perf_event.c2
-rw-r--r--arch/arm64/kernel/vdso.c4
-rw-r--r--arch/arm64/kernel/vdso/gettimeofday.S2
10 files changed, 38 insertions, 30 deletions
diff --git a/arch/arm64/Kconfig b/arch/arm64/Kconfig
index f9ccff915918..f8f362aafee9 100644
--- a/arch/arm64/Kconfig
+++ b/arch/arm64/Kconfig
@@ -2,14 +2,14 @@ config ARM64
def_bool y
select ARCH_HAS_ATOMIC64_DEC_IF_POSITIVE
select ARCH_WANT_COMPAT_IPC_PARSE_VERSION
+ select ARM_AMBA
+ select CLONE_BACKWARDS
select COMMON_CLK
select GENERIC_CLOCKEVENTS
select GENERIC_HARDIRQS_NO_DEPRECATED
select GENERIC_IOMAP
select GENERIC_IRQ_PROBE
select GENERIC_IRQ_SHOW
- select GENERIC_KERNEL_EXECVE
- select GENERIC_KERNEL_THREAD
select GENERIC_SMP_IDLE_THREAD
select GENERIC_TIME_VSYSCALL
select HARDIRQS_SW_RESEND
@@ -33,7 +33,6 @@ config ARM64
select RTC_LIB
select SPARSE_IRQ
select SYSCTL_EXCEPTION_TRACE
- select CLONE_BACKWARDS
help
ARM 64-bit (AArch64) Linux support.
@@ -92,6 +91,9 @@ config SWIOTLB
config IOMMU_HELPER
def_bool SWIOTLB
+config GENERIC_GPIO
+ def_bool y
+
source "init/Kconfig"
source "kernel/Kconfig.freezer"
diff --git a/arch/arm64/boot/dts/Makefile b/arch/arm64/boot/dts/Makefile
index 801e2d7fcbc6..32ac0aef0068 100644
--- a/arch/arm64/boot/dts/Makefile
+++ b/arch/arm64/boot/dts/Makefile
@@ -1,4 +1,5 @@
targets += dtbs
+targets += $(dtb-y)
dtbs: $(addprefix $(obj)/, $(dtb-y))
diff --git a/arch/arm64/include/asm/compat.h b/arch/arm64/include/asm/compat.h
index 37e610dc084e..618b450e5a1d 100644
--- a/arch/arm64/include/asm/compat.h
+++ b/arch/arm64/include/asm/compat.h
@@ -23,6 +23,7 @@
*/
#include <linux/types.h>
#include <linux/sched.h>
+#include <linux/ptrace.h>
#define COMPAT_USER_HZ 100
#define COMPAT_UTS_MACHINE "armv8l\0\0"
@@ -209,10 +210,11 @@ static inline compat_uptr_t ptr_to_compat(void __user *uptr)
return (u32)(unsigned long)uptr;
}
+#define compat_user_stack_pointer() (current_pt_regs()->compat_sp)
+
static inline void __user *arch_compat_alloc_user_space(long len)
{
- struct pt_regs *regs = task_pt_regs(current);
- return (void __user *)regs->compat_sp - len;
+ return (void __user *)compat_user_stack_pointer() - len;
}
struct compat_ipc64_perm {
diff --git a/arch/arm64/include/asm/dma-mapping.h b/arch/arm64/include/asm/dma-mapping.h
index 538f4b44db5d..994776894198 100644
--- a/arch/arm64/include/asm/dma-mapping.h
+++ b/arch/arm64/include/asm/dma-mapping.h
@@ -50,6 +50,7 @@ static inline phys_addr_t dma_to_phys(struct device *dev, dma_addr_t dev_addr)
static inline int dma_mapping_error(struct device *dev, dma_addr_t dev_addr)
{
struct dma_map_ops *ops = get_dma_ops(dev);
+ debug_dma_mapping_error(dev, dev_addr);
return ops->mapping_error(dev, dev_addr);
}
diff --git a/arch/arm64/include/asm/pgtable.h b/arch/arm64/include/asm/pgtable.h
index 64b133949502..e333a243bfcc 100644
--- a/arch/arm64/include/asm/pgtable.h
+++ b/arch/arm64/include/asm/pgtable.h
@@ -24,7 +24,8 @@
/*
* Software defined PTE bits definition.
*/
-#define PTE_VALID (_AT(pteval_t, 1) << 0) /* pte_present() check */
+#define PTE_VALID (_AT(pteval_t, 1) << 0)
+#define PTE_PROT_NONE (_AT(pteval_t, 1) << 1) /* only when !PTE_VALID */
#define PTE_FILE (_AT(pteval_t, 1) << 2) /* only when !pte_present() */
#define PTE_DIRTY (_AT(pteval_t, 1) << 55)
#define PTE_SPECIAL (_AT(pteval_t, 1) << 56)
@@ -60,9 +61,12 @@ extern void __pgd_error(const char *file, int line, unsigned long val);
extern pgprot_t pgprot_default;
-#define _MOD_PROT(p, b) __pgprot(pgprot_val(p) | (b))
+#define __pgprot_modify(prot,mask,bits) \
+ __pgprot((pgprot_val(prot) & ~(mask)) | (bits))
+
+#define _MOD_PROT(p, b) __pgprot_modify(p, 0, b)
-#define PAGE_NONE _MOD_PROT(pgprot_default, PTE_NG | PTE_PXN | PTE_UXN | PTE_RDONLY)
+#define PAGE_NONE __pgprot_modify(pgprot_default, PTE_TYPE_MASK, PTE_PROT_NONE)
#define PAGE_SHARED _MOD_PROT(pgprot_default, PTE_USER | PTE_NG | PTE_PXN | PTE_UXN)
#define PAGE_SHARED_EXEC _MOD_PROT(pgprot_default, PTE_USER | PTE_NG | PTE_PXN)
#define PAGE_COPY _MOD_PROT(pgprot_default, PTE_USER | PTE_NG | PTE_PXN | PTE_UXN | PTE_RDONLY)
@@ -72,7 +76,7 @@ extern pgprot_t pgprot_default;
#define PAGE_KERNEL _MOD_PROT(pgprot_default, PTE_PXN | PTE_UXN | PTE_DIRTY)
#define PAGE_KERNEL_EXEC _MOD_PROT(pgprot_default, PTE_UXN | PTE_DIRTY)
-#define __PAGE_NONE __pgprot(_PAGE_DEFAULT | PTE_NG | PTE_PXN | PTE_UXN | PTE_RDONLY)
+#define __PAGE_NONE __pgprot(((_PAGE_DEFAULT) & ~PTE_TYPE_MASK) | PTE_PROT_NONE)
#define __PAGE_SHARED __pgprot(_PAGE_DEFAULT | PTE_USER | PTE_NG | PTE_PXN | PTE_UXN)
#define __PAGE_SHARED_EXEC __pgprot(_PAGE_DEFAULT | PTE_USER | PTE_NG | PTE_PXN)
#define __PAGE_COPY __pgprot(_PAGE_DEFAULT | PTE_USER | PTE_NG | PTE_PXN | PTE_UXN | PTE_RDONLY)
@@ -125,16 +129,15 @@ extern struct page *empty_zero_page;
/*
* The following only work if pte_present(). Undefined behaviour otherwise.
*/
-#define pte_present(pte) (pte_val(pte) & PTE_VALID)
+#define pte_present(pte) (pte_val(pte) & (PTE_VALID | PTE_PROT_NONE))
#define pte_dirty(pte) (pte_val(pte) & PTE_DIRTY)
#define pte_young(pte) (pte_val(pte) & PTE_AF)
#define pte_special(pte) (pte_val(pte) & PTE_SPECIAL)
#define pte_write(pte) (!(pte_val(pte) & PTE_RDONLY))
#define pte_exec(pte) (!(pte_val(pte) & PTE_UXN))
-#define pte_present_exec_user(pte) \
- ((pte_val(pte) & (PTE_VALID | PTE_USER | PTE_UXN)) == \
- (PTE_VALID | PTE_USER))
+#define pte_valid_user(pte) \
+ ((pte_val(pte) & (PTE_VALID | PTE_USER)) == (PTE_VALID | PTE_USER))
#define PTE_BIT_FUNC(fn,op) \
static inline pte_t pte_##fn(pte_t pte) { pte_val(pte) op; return pte; }
@@ -157,10 +160,13 @@ extern void __sync_icache_dcache(pte_t pteval, unsigned long addr);
static inline void set_pte_at(struct mm_struct *mm, unsigned long addr,
pte_t *ptep, pte_t pte)
{
- if (pte_present_exec_user(pte))
- __sync_icache_dcache(pte, addr);
- if (!pte_dirty(pte))
- pte = pte_wrprotect(pte);
+ if (pte_valid_user(pte)) {
+ if (pte_exec(pte))
+ __sync_icache_dcache(pte, addr);
+ if (!pte_dirty(pte))
+ pte = pte_wrprotect(pte);
+ }
+
set_pte(ptep, pte);
}
@@ -170,9 +176,6 @@ static inline void set_pte_at(struct mm_struct *mm, unsigned long addr,
#define pte_huge(pte) ((pte_val(pte) & PTE_TYPE_MASK) == PTE_TYPE_HUGEPAGE)
#define pte_mkhuge(pte) (__pte((pte_val(pte) & ~PTE_TYPE_MASK) | PTE_TYPE_HUGEPAGE))
-#define __pgprot_modify(prot,mask,bits) \
- __pgprot((pgprot_val(prot) & ~(mask)) | (bits))
-
#define __HAVE_ARCH_PTE_SPECIAL
/*
@@ -264,7 +267,8 @@ static inline pmd_t *pmd_offset(pud_t *pud, unsigned long addr)
static inline pte_t pte_modify(pte_t pte, pgprot_t newprot)
{
- const pteval_t mask = PTE_USER | PTE_PXN | PTE_UXN | PTE_RDONLY;
+ const pteval_t mask = PTE_USER | PTE_PXN | PTE_UXN | PTE_RDONLY |
+ PTE_PROT_NONE | PTE_VALID;
pte_val(pte) = (pte_val(pte) & ~mask) | (pgprot_val(newprot) & mask);
return pte;
}
diff --git a/arch/arm64/include/asm/unistd.h b/arch/arm64/include/asm/unistd.h
index 76fb7dd3350a..744087fb521c 100644
--- a/arch/arm64/include/asm/unistd.h
+++ b/arch/arm64/include/asm/unistd.h
@@ -28,6 +28,5 @@
#define __ARCH_WANT_SYS_FORK
#define __ARCH_WANT_SYS_VFORK
#endif
-#define __ARCH_WANT_SYS_EXECVE
#define __ARCH_WANT_SYS_CLONE
#include <uapi/asm/unistd.h>
diff --git a/arch/arm64/include/asm/unistd32.h b/arch/arm64/include/asm/unistd32.h
index 58432625fdb3..5ef47ba3ed45 100644
--- a/arch/arm64/include/asm/unistd32.h
+++ b/arch/arm64/include/asm/unistd32.h
@@ -395,8 +395,13 @@ __SYSCALL(370, sys_name_to_handle_at)
__SYSCALL(371, compat_sys_open_by_handle_at)
__SYSCALL(372, compat_sys_clock_adjtime)
__SYSCALL(373, sys_syncfs)
+__SYSCALL(374, compat_sys_sendmmsg)
+__SYSCALL(375, sys_setns)
+__SYSCALL(376, compat_sys_process_vm_readv)
+__SYSCALL(377, compat_sys_process_vm_writev)
+__SYSCALL(378, sys_ni_syscall) /* 378 for kcmp */
-#define __NR_compat_syscalls 374
+#define __NR_compat_syscalls 379
/*
* Compat syscall numbers used by the AArch64 kernel.
diff --git a/arch/arm64/kernel/perf_event.c b/arch/arm64/kernel/perf_event.c
index c76c7241125b..f7073c7b1ca9 100644
--- a/arch/arm64/kernel/perf_event.c
+++ b/arch/arm64/kernel/perf_event.c
@@ -1221,7 +1221,7 @@ static struct of_device_id armpmu_of_device_ids[] = {
{},
};
-static int __devinit armpmu_device_probe(struct platform_device *pdev)
+static int armpmu_device_probe(struct platform_device *pdev)
{
if (!cpu_pmu)
return -ENODEV;
diff --git a/arch/arm64/kernel/vdso.c b/arch/arm64/kernel/vdso.c
index c958cb84d75f..6a389dc1bd49 100644
--- a/arch/arm64/kernel/vdso.c
+++ b/arch/arm64/kernel/vdso.c
@@ -252,10 +252,6 @@ void update_vsyscall(struct timekeeper *tk)
void update_vsyscall_tz(void)
{
- ++vdso_data->tb_seq_count;
- smp_wmb();
vdso_data->tz_minuteswest = sys_tz.tz_minuteswest;
vdso_data->tz_dsttime = sys_tz.tz_dsttime;
- smp_wmb();
- ++vdso_data->tb_seq_count;
}
diff --git a/arch/arm64/kernel/vdso/gettimeofday.S b/arch/arm64/kernel/vdso/gettimeofday.S
index 8bf658d974f9..f0a6d10b5211 100644
--- a/arch/arm64/kernel/vdso/gettimeofday.S
+++ b/arch/arm64/kernel/vdso/gettimeofday.S
@@ -73,8 +73,6 @@ ENTRY(__kernel_gettimeofday)
/* If tz is NULL, return 0. */
cbz x1, 3f
ldp w4, w5, [vdso_data, #VDSO_TZ_MINWEST]
- seqcnt_read w9
- seqcnt_check w9, 1b
stp w4, w5, [x1, #TZ_MINWEST]
3:
mov x0, xzr
generated by cgit v1.2.3 (git 2.0.4) at 2024-06-30 18:26:21 +0000