diff options
| author | Caleb Connolly <caleb.connolly@linaro.org> | 2024-08-09 01:59:31 +0200 |
|---|---|---|
| committer | Caleb Connolly <caleb.connolly@linaro.org> | 2024-09-06 10:47:46 +0200 |
| commit | 9f2d4561465b42f8cdc478ea5df44b93e12a90d9 (patch) | |
| tree | 4ce5d5f77f49a2477c84970831e12e4989484c2e /arch/arm/include/asm/system.h | |
| parent | a9337c6651781c2ac0f3e381648cf1ab81eea79a (diff) | |
armv8: mmu: add a way to map additional regions
In some cases we might want to map some memory region after enabling
caches. Introduce a new helper for this.
Reviewed-by: Neil Armstrong <neil.armstrong@linaro.org>
Signed-off-by: Caleb Connolly <caleb.connolly@linaro.org>
Diffstat (limited to 'arch/arm/include/asm/system.h')
| -rw-r--r-- | arch/arm/include/asm/system.h | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/arch/arm/include/asm/system.h b/arch/arm/include/asm/system.h index 7e30cac32a0..2237d7d0066 100644 --- a/arch/arm/include/asm/system.h +++ b/arch/arm/include/asm/system.h @@ -277,6 +277,16 @@ void protect_secure_region(void); void smp_kick_all_cpus(void); void flush_l3_cache(void); + +/** + * mmu_map_region() - map a region of previously unmapped memory. + * Will be mapped MT_NORMAL & PTE_BLOCK_INNER_SHARE. + * + * @start: Start address of the region + * @size: Size of the region + * @emerg: Also map the region in the emergency table + */ +void mmu_map_region(phys_addr_t start, u64 size, bool emerg); void mmu_change_region_attr(phys_addr_t start, size_t size, u64 attrs); /* |