diff options
| author | Anshul Dalal <anshuld@ti.com> | 2025-09-16 16:52:05 +0530 |
|---|---|---|
| committer | Tom Rini <trini@konsulko.com> | 2025-10-03 15:13:58 -0600 |
| commit | 8fd3768ca1683b45aeb5662094de6bcffdb7735b (patch) | |
| tree | 940211ff77ca44e7cb9c0261c15d63ce22ed7313 /arch/arm/cpu | |
| parent | e589d5822cac10915ec04e8d9044d2460aec8924 (diff) | |
arm: armv8: remove redundant definition of mmu_status
mmu_status is used in io memcpy functions to prevent accesses to non
8-byte aligned addresses when the mmu is disabled. Though there is a
redundant definition enabled when icaches is turned off by setting
SYS_ICACHE_OFF.
This patch removes the redundant definition, allowing mmu_status to
properly report the status regardless of config settings. This shouldn't
be a problem since access to non 8-byte aligned data can be done
irrespective of icache state.
Fixes: 268f6ac1f95c ("arm64: Update memcpy_{from, to}io() helpers")
Signed-off-by: Anshul Dalal <anshuld@ti.com>
Reviewed-by: Patrice Chotard <patrice.chotard@foss.st.com>
Reviewed-by: Dhruva Gole <d-gole@ti.com>
Acked-by: Ilias Apalodimas <ilias.apalodimas@linaro.org>
Diffstat (limited to 'arch/arm/cpu')
| -rw-r--r-- | arch/arm/cpu/armv8/cache_v8.c | 15 |
1 files changed, 5 insertions, 10 deletions
diff --git a/arch/arm/cpu/armv8/cache_v8.c b/arch/arm/cpu/armv8/cache_v8.c index 1c1e33bec24..a7899857658 100644 --- a/arch/arm/cpu/armv8/cache_v8.c +++ b/arch/arm/cpu/armv8/cache_v8.c @@ -1134,11 +1134,6 @@ int icache_status(void) return (get_sctlr() & CR_I) != 0; } -int mmu_status(void) -{ - return (get_sctlr() & CR_M) != 0; -} - void invalidate_icache_all(void) { __asm_invalidate_icache_all(); @@ -1160,17 +1155,17 @@ int icache_status(void) return 0; } -int mmu_status(void) -{ - return 0; -} - void invalidate_icache_all(void) { } #endif /* !CONFIG_IS_ENABLED(SYS_ICACHE_OFF) */ +int mmu_status(void) +{ + return (get_sctlr() & CR_M) != 0; +} + /* * Enable dCache & iCache, whether cache is actually enabled * depend on CONFIG_SYS_DCACHE_OFF and CONFIG_SYS_ICACHE_OFF |