diff options
author | Linus Torvalds <torvalds@linux-foundation.org> | 2024-05-17 18:53:47 +0300 |
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committer | Linus Torvalds <torvalds@linux-foundation.org> | 2024-05-17 18:53:47 +0300 |
commit | 4853f1f6ace32c68a04287353e428c4cfc3fa8ed (patch) | |
tree | 15bf600ce002c8aca583d9525dfd8241447987e0 /arch/arm/mm/cache-v4wt.S | |
parent | ea5f6ad9ad9645733b72ab53a98e719b460d36a6 (diff) | |
parent | f698d314eec2e16b980128b503d96bd73df77e90 (diff) | |
download | linux-4853f1f6ace32c68a04287353e428c4cfc3fa8ed.tar.xz |
Merge tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rmk/linux
Pull ARM updates from Russell King:
- Updates to AMBA bus subsystem to drop .owner struct device_driver
initialisations, moving that to code instead.
- Add LPAE privileged-access-never support
- Add support for Clang CFI
- clkdev: report over-sized device or connection strings
* tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rmk/linux: (36 commits)
ARM: 9398/1: Fix userspace enter on LPAE with CC_OPTIMIZE_FOR_SIZE=y
clkdev: report over-sized strings when creating clkdev entries
ARM: 9393/1: mm: Use conditionals for CFI branches
ARM: 9392/2: Support CLANG CFI
ARM: 9391/2: hw_breakpoint: Handle CFI breakpoints
ARM: 9390/2: lib: Annotate loop delay instructions for CFI
ARM: 9389/2: mm: Define prototypes for all per-processor calls
ARM: 9388/2: mm: Type-annotate all per-processor assembly routines
ARM: 9387/2: mm: Rewrite cacheflush vtables in CFI safe C
ARM: 9386/2: mm: Use symbol alias for cache functions
ARM: 9385/2: mm: Type-annotate all cache assembly routines
ARM: 9384/2: mm: Make tlbflush routines CFI safe
ARM: 9382/1: ftrace: Define ftrace_stub_graph
ARM: 9358/2: Implement PAN for LPAE by TTBR0 page table walks disablement
ARM: 9357/2: Reduce the number of #ifdef CONFIG_CPU_SW_DOMAIN_PAN
ARM: 9356/2: Move asm statements accessing TTBCR into C functions
ARM: 9355/2: Add TTBCR_* definitions to pgtable-3level-hwdef.h
ARM: 9379/1: coresight: tpda: drop owner assignment
ARM: 9378/1: coresight: etm4x: drop owner assignment
ARM: 9377/1: hwrng: nomadik: drop owner assignment
...
Diffstat (limited to 'arch/arm/mm/cache-v4wt.S')
-rw-r--r-- | arch/arm/mm/cache-v4wt.S | 55 |
1 files changed, 28 insertions, 27 deletions
diff --git a/arch/arm/mm/cache-v4wt.S b/arch/arm/mm/cache-v4wt.S index 0b290c25a99d..a97dc267b3b0 100644 --- a/arch/arm/mm/cache-v4wt.S +++ b/arch/arm/mm/cache-v4wt.S @@ -10,6 +10,7 @@ */ #include <linux/linkage.h> #include <linux/init.h> +#include <linux/cfi_types.h> #include <asm/assembler.h> #include <asm/page.h> #include "proc-macros.S" @@ -43,11 +44,11 @@ * * Unconditionally clean and invalidate the entire icache. */ -ENTRY(v4wt_flush_icache_all) +SYM_TYPED_FUNC_START(v4wt_flush_icache_all) mov r0, #0 mcr p15, 0, r0, c7, c5, 0 @ invalidate I cache ret lr -ENDPROC(v4wt_flush_icache_all) +SYM_FUNC_END(v4wt_flush_icache_all) /* * flush_user_cache_all() @@ -55,14 +56,14 @@ ENDPROC(v4wt_flush_icache_all) * Invalidate all cache entries in a particular address * space. */ -ENTRY(v4wt_flush_user_cache_all) - /* FALLTHROUGH */ +SYM_FUNC_ALIAS(v4wt_flush_user_cache_all, v4wt_flush_kern_cache_all) + /* * flush_kern_cache_all() * * Clean and invalidate the entire cache. */ -ENTRY(v4wt_flush_kern_cache_all) +SYM_TYPED_FUNC_START(v4wt_flush_kern_cache_all) mov r2, #VM_EXEC mov ip, #0 __flush_whole_cache: @@ -70,6 +71,7 @@ __flush_whole_cache: mcrne p15, 0, ip, c7, c5, 0 @ invalidate I cache mcr p15, 0, ip, c7, c6, 0 @ invalidate D cache ret lr +SYM_FUNC_END(v4wt_flush_kern_cache_all) /* * flush_user_cache_range(start, end, flags) @@ -81,7 +83,7 @@ __flush_whole_cache: * - end - end address (exclusive, page aligned) * - flags - vma_area_struct flags describing address space */ -ENTRY(v4wt_flush_user_cache_range) +SYM_TYPED_FUNC_START(v4wt_flush_user_cache_range) sub r3, r1, r0 @ calculate total size cmp r3, #CACHE_DLIMIT bhs __flush_whole_cache @@ -93,6 +95,7 @@ ENTRY(v4wt_flush_user_cache_range) cmp r0, r1 blo 1b ret lr +SYM_FUNC_END(v4wt_flush_user_cache_range) /* * coherent_kern_range(start, end) @@ -104,8 +107,11 @@ ENTRY(v4wt_flush_user_cache_range) * - start - virtual start address * - end - virtual end address */ -ENTRY(v4wt_coherent_kern_range) - /* FALLTRHOUGH */ +SYM_TYPED_FUNC_START(v4wt_coherent_kern_range) +#ifdef CONFIG_CFI_CLANG /* Fallthrough if !CFI */ + b v4wt_coherent_user_range +#endif +SYM_FUNC_END(v4wt_coherent_kern_range) /* * coherent_user_range(start, end) @@ -117,7 +123,7 @@ ENTRY(v4wt_coherent_kern_range) * - start - virtual start address * - end - virtual end address */ -ENTRY(v4wt_coherent_user_range) +SYM_TYPED_FUNC_START(v4wt_coherent_user_range) bic r0, r0, #CACHE_DLINESIZE - 1 1: mcr p15, 0, r0, c7, c5, 1 @ invalidate I entry add r0, r0, #CACHE_DLINESIZE @@ -125,6 +131,7 @@ ENTRY(v4wt_coherent_user_range) blo 1b mov r0, #0 ret lr +SYM_FUNC_END(v4wt_coherent_user_range) /* * flush_kern_dcache_area(void *addr, size_t size) @@ -135,11 +142,12 @@ ENTRY(v4wt_coherent_user_range) * - addr - kernel address * - size - region size */ -ENTRY(v4wt_flush_kern_dcache_area) +SYM_TYPED_FUNC_START(v4wt_flush_kern_dcache_area) mov r2, #0 mcr p15, 0, r2, c7, c5, 0 @ invalidate I cache add r1, r0, r1 - /* fallthrough */ + b v4wt_dma_inv_range +SYM_FUNC_END(v4wt_flush_kern_dcache_area) /* * dma_inv_range(start, end) @@ -167,9 +175,10 @@ v4wt_dma_inv_range: * * - start - virtual start address * - end - virtual end address - */ - .globl v4wt_dma_flush_range - .equ v4wt_dma_flush_range, v4wt_dma_inv_range +*/ +SYM_TYPED_FUNC_START(v4wt_dma_flush_range) + b v4wt_dma_inv_range +SYM_FUNC_END(v4wt_dma_flush_range) /* * dma_unmap_area(start, size, dir) @@ -177,11 +186,12 @@ v4wt_dma_inv_range: * - size - size of region * - dir - DMA direction */ -ENTRY(v4wt_dma_unmap_area) +SYM_TYPED_FUNC_START(v4wt_dma_unmap_area) add r1, r1, r0 teq r2, #DMA_TO_DEVICE bne v4wt_dma_inv_range - /* FALLTHROUGH */ + ret lr +SYM_FUNC_END(v4wt_dma_unmap_area) /* * dma_map_area(start, size, dir) @@ -189,15 +199,6 @@ ENTRY(v4wt_dma_unmap_area) * - size - size of region * - dir - DMA direction */ -ENTRY(v4wt_dma_map_area) +SYM_TYPED_FUNC_START(v4wt_dma_map_area) ret lr -ENDPROC(v4wt_dma_unmap_area) -ENDPROC(v4wt_dma_map_area) - - .globl v4wt_flush_kern_cache_louis - .equ v4wt_flush_kern_cache_louis, v4wt_flush_kern_cache_all - - __INITDATA - - @ define struct cpu_cache_fns (see <asm/cacheflush.h> and proc-macros.S) - define_cache_functions v4wt +SYM_FUNC_END(v4wt_dma_map_area) |