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-rw-r--r--arch/arm/include/asm/cache.h6
-rw-r--r--arch/arm/include/asm/cachetype.h13
-rw-r--r--arch/arm/include/asm/ecard.h2
-rw-r--r--arch/arm/include/asm/io.h2
-rw-r--r--arch/arm/include/asm/pgtable-3level.h1
-rw-r--r--arch/arm/include/asm/pgtable.h8
-rw-r--r--arch/arm/include/asm/simd.h11
-rw-r--r--arch/arm/include/asm/syscall.h37
-rw-r--r--arch/arm/include/asm/tlb.h10
-rw-r--r--arch/arm/include/asm/vdso.h2
-rw-r--r--arch/arm/include/asm/vdso/gettimeofday.h7
-rw-r--r--arch/arm/include/asm/vdso/vsyscall.h12
-rw-r--r--arch/arm/include/asm/vfp.h10
-rw-r--r--arch/arm/include/asm/vfpmacros.h11
-rw-r--r--arch/arm/include/asm/vmlinux.lds.h14
15 files changed, 85 insertions, 61 deletions
diff --git a/arch/arm/include/asm/cache.h b/arch/arm/include/asm/cache.h
index e3ea34558ada..ecbc100d22a5 100644
--- a/arch/arm/include/asm/cache.h
+++ b/arch/arm/include/asm/cache.h
@@ -26,4 +26,10 @@
#define __read_mostly __section(".data..read_mostly")
+#ifndef __ASSEMBLY__
+#ifdef CONFIG_ARCH_HAS_CACHE_LINE_SIZE
+int cache_line_size(void);
+#endif
+#endif
+
#endif
diff --git a/arch/arm/include/asm/cachetype.h b/arch/arm/include/asm/cachetype.h
index b9dbe1d4c8fe..b01c59076b84 100644
--- a/arch/arm/include/asm/cachetype.h
+++ b/arch/arm/include/asm/cachetype.h
@@ -83,6 +83,14 @@ static inline unsigned int read_ccsidr(void)
asm volatile("mrc p15, 1, %0, c0, c0, 0" : "=r" (val));
return val;
}
+
+static inline unsigned int read_clidr(void)
+{
+ unsigned int val;
+
+ asm volatile("mrc p15, 1, %0, c0, c0, 1" : "=r" (val));
+ return val;
+}
#else /* CONFIG_CPU_V7M */
#include <linux/io.h>
#include "asm/v7m.h"
@@ -96,6 +104,11 @@ static inline unsigned int read_ccsidr(void)
{
return readl(BASEADDR_V7M_SCB + V7M_SCB_CCSIDR);
}
+
+static inline unsigned int read_clidr(void)
+{
+ return readl(BASEADDR_V7M_SCB + V7M_SCB_CLIDR);
+}
#endif
#endif
diff --git a/arch/arm/include/asm/ecard.h b/arch/arm/include/asm/ecard.h
index 4befe8d2ae19..7cbe001bf9cc 100644
--- a/arch/arm/include/asm/ecard.h
+++ b/arch/arm/include/asm/ecard.h
@@ -195,7 +195,7 @@ void __iomem *ecardm_iomap(struct expansion_card *ec, unsigned int res,
unsigned long offset, unsigned long maxsize);
#define ecardm_iounmap(__ec, __addr) devm_iounmap(&(__ec)->dev, __addr)
-extern struct bus_type ecard_bus_type;
+extern const struct bus_type ecard_bus_type;
#define ECARD_DEV(_d) container_of((_d), struct expansion_card, dev)
diff --git a/arch/arm/include/asm/io.h b/arch/arm/include/asm/io.h
index 1815748f5d2a..bae5edf348ef 100644
--- a/arch/arm/include/asm/io.h
+++ b/arch/arm/include/asm/io.h
@@ -381,7 +381,7 @@ void __iomem *ioremap_wc(resource_size_t res_cookie, size_t size);
void iounmap(volatile void __iomem *io_addr);
#define iounmap iounmap
-void *arch_memremap_wb(phys_addr_t phys_addr, size_t size);
+void *arch_memremap_wb(phys_addr_t phys_addr, size_t size, unsigned long flags);
#define arch_memremap_wb arch_memremap_wb
/*
diff --git a/arch/arm/include/asm/pgtable-3level.h b/arch/arm/include/asm/pgtable-3level.h
index fa5939eb9864..7b71a3d414b7 100644
--- a/arch/arm/include/asm/pgtable-3level.h
+++ b/arch/arm/include/asm/pgtable-3level.h
@@ -209,7 +209,6 @@ PMD_BIT_FUNC(mkyoung, |= PMD_SECT_AF);
#define pmd_pfn(pmd) (((pmd_val(pmd) & PMD_MASK) & PHYS_MASK) >> PAGE_SHIFT)
#define pfn_pmd(pfn,prot) (__pmd(((phys_addr_t)(pfn) << PAGE_SHIFT) | pgprot_val(prot)))
-#define mk_pmd(page,prot) pfn_pmd(page_to_pfn(page),prot)
/* No hardware dirty/accessed bits -- generic_pmdp_establish() fits */
#define pmdp_establish generic_pmdp_establish
diff --git a/arch/arm/include/asm/pgtable.h b/arch/arm/include/asm/pgtable.h
index be91e376df79..86378eec7757 100644
--- a/arch/arm/include/asm/pgtable.h
+++ b/arch/arm/include/asm/pgtable.h
@@ -19,14 +19,13 @@ extern struct page *empty_zero_page;
#define ZERO_PAGE(vaddr) (empty_zero_page)
#endif
-#ifndef CONFIG_MMU
-
#include <asm-generic/pgtable-nopud.h>
+
+#ifndef CONFIG_MMU
#include <asm/pgtable-nommu.h>
#else
-#include <asm-generic/pgtable-nopud.h>
#include <asm/page.h>
#include <asm/pgtable-hwdef.h>
@@ -169,7 +168,6 @@ static inline pte_t *pmd_page_vaddr(pmd_t pmd)
#define pfn_pte(pfn,prot) __pte(__pfn_to_phys(pfn) | pgprot_val(prot))
#define pte_page(pte) pfn_to_page(pte_pfn(pte))
-#define mk_pte(page,prot) pfn_pte(page_to_pfn(page), prot)
#define pte_clear(mm,addr,ptep) set_pte_ext(ptep, __pte(0), 0)
@@ -303,7 +301,7 @@ static inline pte_t pte_modify(pte_t pte, pgprot_t newprot)
#define __pte_to_swp_entry(pte) ((swp_entry_t) { pte_val(pte) })
#define __swp_entry_to_pte(swp) __pte((swp).val)
-static inline int pte_swp_exclusive(pte_t pte)
+static inline bool pte_swp_exclusive(pte_t pte)
{
return pte_isset(pte, L_PTE_SWP_EXCLUSIVE);
}
diff --git a/arch/arm/include/asm/simd.h b/arch/arm/include/asm/simd.h
index 82191dbd7e78..be08a8da046f 100644
--- a/arch/arm/include/asm/simd.h
+++ b/arch/arm/include/asm/simd.h
@@ -1,8 +1,15 @@
/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef _ASM_SIMD_H
+#define _ASM_SIMD_H
-#include <linux/hardirq.h>
+#include <linux/compiler_attributes.h>
+#include <linux/preempt.h>
+#include <linux/types.h>
static __must_check inline bool may_use_simd(void)
{
- return IS_ENABLED(CONFIG_KERNEL_MODE_NEON) && !in_hardirq();
+ return IS_ENABLED(CONFIG_KERNEL_MODE_NEON) && !in_hardirq()
+ && !irqs_disabled();
}
+
+#endif /* _ASM_SIMD_H */
diff --git a/arch/arm/include/asm/syscall.h b/arch/arm/include/asm/syscall.h
index fe4326d938c1..18b102a30741 100644
--- a/arch/arm/include/asm/syscall.h
+++ b/arch/arm/include/asm/syscall.h
@@ -68,6 +68,30 @@ static inline void syscall_set_return_value(struct task_struct *task,
regs->ARM_r0 = (long) error ? error : val;
}
+static inline void syscall_set_nr(struct task_struct *task,
+ struct pt_regs *regs,
+ int nr)
+{
+ if (nr == -1) {
+ task_thread_info(task)->abi_syscall = -1;
+ /*
+ * When the syscall number is set to -1, the syscall will be
+ * skipped. In this case the syscall return value has to be
+ * set explicitly, otherwise the first syscall argument is
+ * returned as the syscall return value.
+ */
+ syscall_set_return_value(task, regs, -ENOSYS, 0);
+ return;
+ }
+ if ((IS_ENABLED(CONFIG_AEABI) && !IS_ENABLED(CONFIG_OABI_COMPAT))) {
+ task_thread_info(task)->abi_syscall = nr;
+ return;
+ }
+ task_thread_info(task)->abi_syscall =
+ (task_thread_info(task)->abi_syscall & ~__NR_SYSCALL_MASK) |
+ (nr & __NR_SYSCALL_MASK);
+}
+
#define SYSCALL_MAX_ARGS 7
static inline void syscall_get_arguments(struct task_struct *task,
@@ -80,6 +104,19 @@ static inline void syscall_get_arguments(struct task_struct *task,
memcpy(args, &regs->ARM_r0 + 1, 5 * sizeof(args[0]));
}
+static inline void syscall_set_arguments(struct task_struct *task,
+ struct pt_regs *regs,
+ const unsigned long *args)
+{
+ memcpy(&regs->ARM_r0, args, 6 * sizeof(args[0]));
+ /*
+ * Also copy the first argument into ARM_ORIG_r0
+ * so that syscall_get_arguments() would return it
+ * instead of the previous value.
+ */
+ regs->ARM_ORIG_r0 = regs->ARM_r0;
+}
+
static inline int syscall_get_arch(struct task_struct *task)
{
/* ARM tasks don't change audit architectures on the fly. */
diff --git a/arch/arm/include/asm/tlb.h b/arch/arm/include/asm/tlb.h
index f40d06ad5d2a..ea4fbe7b17f6 100644
--- a/arch/arm/include/asm/tlb.h
+++ b/arch/arm/include/asm/tlb.h
@@ -26,14 +26,7 @@
#else /* !CONFIG_MMU */
-#include <linux/swap.h>
#include <asm/tlbflush.h>
-
-static inline void __tlb_remove_table(void *_table)
-{
- free_page_and_swap_cache((struct page *)_table);
-}
-
#include <asm-generic/tlb.h>
static inline void
@@ -41,8 +34,6 @@ __pte_free_tlb(struct mmu_gather *tlb, pgtable_t pte, unsigned long addr)
{
struct ptdesc *ptdesc = page_ptdesc(pte);
- pagetable_pte_dtor(ptdesc);
-
#ifndef CONFIG_ARM_LPAE
/*
* With the classic ARM MMU, a pte page has two corresponding pmd
@@ -61,7 +52,6 @@ __pmd_free_tlb(struct mmu_gather *tlb, pmd_t *pmdp, unsigned long addr)
#ifdef CONFIG_ARM_LPAE
struct ptdesc *ptdesc = virt_to_ptdesc(pmdp);
- pagetable_pmd_dtor(ptdesc);
tlb_remove_ptdesc(tlb, ptdesc);
#endif
}
diff --git a/arch/arm/include/asm/vdso.h b/arch/arm/include/asm/vdso.h
index 5b85889f82ee..88364a6727ff 100644
--- a/arch/arm/include/asm/vdso.h
+++ b/arch/arm/include/asm/vdso.h
@@ -4,6 +4,8 @@
#ifdef __KERNEL__
+#define __VDSO_PAGES 4
+
#ifndef __ASSEMBLY__
struct mm_struct;
diff --git a/arch/arm/include/asm/vdso/gettimeofday.h b/arch/arm/include/asm/vdso/gettimeofday.h
index 592d3d015ca7..1e9f81639c88 100644
--- a/arch/arm/include/asm/vdso/gettimeofday.h
+++ b/arch/arm/include/asm/vdso/gettimeofday.h
@@ -112,7 +112,7 @@ static inline bool arm_vdso_hres_capable(void)
#define __arch_vdso_hres_capable arm_vdso_hres_capable
static __always_inline u64 __arch_get_hw_counter(int clock_mode,
- const struct vdso_data *vd)
+ const struct vdso_time_data *vd)
{
#ifdef CONFIG_ARM_ARCH_TIMER
u64 cycle_now;
@@ -135,11 +135,6 @@ static __always_inline u64 __arch_get_hw_counter(int clock_mode,
#endif
}
-static __always_inline const struct vdso_data *__arch_get_vdso_data(void)
-{
- return _vdso_data;
-}
-
#endif /* !__ASSEMBLY__ */
#endif /* __ASM_VDSO_GETTIMEOFDAY_H */
diff --git a/arch/arm/include/asm/vdso/vsyscall.h b/arch/arm/include/asm/vdso/vsyscall.h
index 705414710dcd..4e7226ad02ec 100644
--- a/arch/arm/include/asm/vdso/vsyscall.h
+++ b/arch/arm/include/asm/vdso/vsyscall.h
@@ -7,22 +7,14 @@
#include <vdso/datapage.h>
#include <asm/cacheflush.h>
-extern struct vdso_data *vdso_data;
extern bool cntvct_ok;
static __always_inline
-struct vdso_data *__arm_get_k_vdso_data(void)
-{
- return vdso_data;
-}
-#define __arch_get_k_vdso_data __arm_get_k_vdso_data
-
-static __always_inline
-void __arm_sync_vdso_data(struct vdso_data *vdata)
+void __arch_sync_vdso_time_data(struct vdso_time_data *vdata)
{
flush_dcache_page(virt_to_page(vdata));
}
-#define __arch_sync_vdso_data __arm_sync_vdso_data
+#define __arch_sync_vdso_time_data __arch_sync_vdso_time_data
/* The asm-generic header needs to be included after the definitions above */
#include <asm-generic/vdso/vsyscall.h>
diff --git a/arch/arm/include/asm/vfp.h b/arch/arm/include/asm/vfp.h
index 157ea3426158..85ccc422d4d0 100644
--- a/arch/arm/include/asm/vfp.h
+++ b/arch/arm/include/asm/vfp.h
@@ -9,16 +9,6 @@
#ifndef __ASM_VFP_H
#define __ASM_VFP_H
-#ifndef CONFIG_AS_VFP_VMRS_FPINST
-#define FPSID cr0
-#define FPSCR cr1
-#define MVFR1 cr6
-#define MVFR0 cr7
-#define FPEXC cr8
-#define FPINST cr9
-#define FPINST2 cr10
-#endif
-
/* FPSID bits */
#define FPSID_IMPLEMENTER_BIT (24)
#define FPSID_IMPLEMENTER_MASK (0xff << FPSID_IMPLEMENTER_BIT)
diff --git a/arch/arm/include/asm/vfpmacros.h b/arch/arm/include/asm/vfpmacros.h
index ba0d4cb5377e..e2e1d5a3727a 100644
--- a/arch/arm/include/asm/vfpmacros.h
+++ b/arch/arm/include/asm/vfpmacros.h
@@ -8,7 +8,6 @@
#include <asm/vfp.h>
-#ifdef CONFIG_AS_VFP_VMRS_FPINST
.macro VFPFMRX, rd, sysreg, cond
vmrs\cond \rd, \sysreg
.endm
@@ -16,16 +15,6 @@
.macro VFPFMXR, sysreg, rd, cond
vmsr\cond \sysreg, \rd
.endm
-#else
- @ Macros to allow building with old toolkits (with no VFP support)
- .macro VFPFMRX, rd, sysreg, cond
- MRC\cond p10, 7, \rd, \sysreg, cr0, 0 @ FMRX \rd, \sysreg
- .endm
-
- .macro VFPFMXR, sysreg, rd, cond
- MCR\cond p10, 7, \rd, \sysreg, cr0, 0 @ FMXR \sysreg, \rd
- .endm
-#endif
@ read all the working registers back into the VFP
.macro VFPFLDMIA, base, tmp
diff --git a/arch/arm/include/asm/vmlinux.lds.h b/arch/arm/include/asm/vmlinux.lds.h
index d60f6e83a9f7..0341973e30e1 100644
--- a/arch/arm/include/asm/vmlinux.lds.h
+++ b/arch/arm/include/asm/vmlinux.lds.h
@@ -19,7 +19,7 @@
#endif
#ifdef CONFIG_MMU
-#define ARM_MMU_KEEP(x) x
+#define ARM_MMU_KEEP(x) KEEP(x)
#define ARM_MMU_DISCARD(x)
#else
#define ARM_MMU_KEEP(x)
@@ -34,6 +34,12 @@
#define NOCROSSREFS
#endif
+#ifdef CONFIG_LD_CAN_USE_KEEP_IN_OVERLAY
+#define OVERLAY_KEEP(x) KEEP(x)
+#else
+#define OVERLAY_KEEP(x) x
+#endif
+
/* Set start/end symbol names to the LMA for the section */
#define ARM_LMA(sym, section) \
sym##_start = LOADADDR(section); \
@@ -125,13 +131,13 @@
__vectors_lma = .; \
OVERLAY 0xffff0000 : NOCROSSREFS AT(__vectors_lma) { \
.vectors { \
- *(.vectors) \
+ OVERLAY_KEEP(*(.vectors)) \
} \
.vectors.bhb.loop8 { \
- *(.vectors.bhb.loop8) \
+ OVERLAY_KEEP(*(.vectors.bhb.loop8)) \
} \
.vectors.bhb.bpiall { \
- *(.vectors.bhb.bpiall) \
+ OVERLAY_KEEP(*(.vectors.bhb.bpiall)) \
} \
} \
ARM_LMA(__vectors, .vectors); \
generated by cgit v1.2.3 (git 2.39.0) at 2025-07-03 13:44:10 +0300