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| author | Thomas Gleixner <tglx@linutronix.de> | 2020-11-03 10:27:29 +0100 |
|---|---|---|
| committer | Thomas Gleixner <tglx@linutronix.de> | 2020-11-06 23:14:57 +0100 |
| commit | 629ed3f7dad2a914b3a89fad49b358e363e3e6d1 (patch) | |
| tree | b401681f496f145bea0e03d594baf79463128a5e /arch/xtensa/include | |
| parent | 3293efa9780712ad8504689e0c296d2bd33827d5 (diff) | |
| download | lwn-629ed3f7dad2a914b3a89fad49b358e363e3e6d1.tar.gz lwn-629ed3f7dad2a914b3a89fad49b358e363e3e6d1.zip | |
xtensa/mm/highmem: Switch to generic kmap atomic
No reason having the same code in every architecture
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: Chris Zankel <chris@zankel.net>
Cc: Max Filippov <jcmvbkbc@gmail.com>
Cc: Arnd Bergmann <arnd@arndb.de>
Link: https://lore.kernel.org/r/20201103095858.311016780@linutronix.de
Diffstat (limited to 'arch/xtensa/include')
| -rw-r--r-- | arch/xtensa/include/asm/fixmap.h | 4 | ||||
| -rw-r--r-- | arch/xtensa/include/asm/highmem.h | 12 |
2 files changed, 12 insertions, 4 deletions
diff --git a/arch/xtensa/include/asm/fixmap.h b/arch/xtensa/include/asm/fixmap.h index a06ffb0c61c7..92049b61c351 100644 --- a/arch/xtensa/include/asm/fixmap.h +++ b/arch/xtensa/include/asm/fixmap.h @@ -16,7 +16,7 @@ #ifdef CONFIG_HIGHMEM #include <linux/threads.h> #include <linux/pgtable.h> -#include <asm/kmap_types.h> +#include <asm/kmap_size.h> #endif /* @@ -39,7 +39,7 @@ enum fixed_addresses { /* reserved pte's for temporary kernel mappings */ FIX_KMAP_BEGIN, FIX_KMAP_END = FIX_KMAP_BEGIN + - (KM_TYPE_NR * NR_CPUS * DCACHE_N_COLORS) - 1, + (KM_MAX_IDX * NR_CPUS * DCACHE_N_COLORS) - 1, #endif __end_of_fixed_addresses }; diff --git a/arch/xtensa/include/asm/highmem.h b/arch/xtensa/include/asm/highmem.h index eac503215f17..0fc3b1cebc56 100644 --- a/arch/xtensa/include/asm/highmem.h +++ b/arch/xtensa/include/asm/highmem.h @@ -16,9 +16,8 @@ #include <linux/pgtable.h> #include <asm/cacheflush.h> #include <asm/fixmap.h> -#include <asm/kmap_types.h> -#define PKMAP_BASE ((FIXADDR_START - \ +#define PKMAP_BASE ((FIXADDR_START - \ (LAST_PKMAP + 1) * PAGE_SIZE) & PMD_MASK) #define LAST_PKMAP (PTRS_PER_PTE * DCACHE_N_COLORS) #define LAST_PKMAP_MASK (LAST_PKMAP - 1) @@ -68,6 +67,15 @@ static inline void flush_cache_kmaps(void) flush_cache_all(); } +enum fixed_addresses kmap_local_map_idx(int type, unsigned long pfn); +#define arch_kmap_local_map_idx kmap_local_map_idx + +enum fixed_addresses kmap_local_unmap_idx(int type, unsigned long addr); +#define arch_kmap_local_unmap_idx kmap_local_unmap_idx + +#define arch_kmap_local_post_unmap(vaddr) \ + local_flush_tlb_kernel_range(vaddr, vaddr + PAGE_SIZE) + void kmap_init(void); #endif |