mirrors/micropython
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

stm32: Simplify D-cache clean and invalidate macros.

Browse Source 
The inline functions that these are wrappers around already account for
cache line size.

Signed-off-by: Angus Gratton <angus@redyak.com.au>
This commit is contained in:
Angus Gratton 2024-02-20 12:48:04 +11:00 committed by Damien George
parent bf68bb95f9
commit 5fe99013b6
1 changed files with 6 additions and 6 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

12
ports/stm32/mpconfigboard_common.h
View File

@ -632,12 +632,12 @@
// D-cache clean/invalidate helpers
#if __DCACHE_PRESENT == 1
#define MP_HAL_CLEANINVALIDATE_DCACHE(addr, size) \
(SCB_CleanInvalidateDCache_by_Addr((uint32_t *)((uint32_t)addr & ~0x1f), \
((uint32_t)((uint8_t *)addr + size + 0x1f) & ~0x1f) - ((uint32_t)addr & ~0x1f)))
#define MP_HAL_CLEAN_DCACHE(addr, size) \
(SCB_CleanDCache_by_Addr((uint32_t *)((uint32_t)addr & ~0x1f), \
((uint32_t)((uint8_t *)addr + size + 0x1f) & ~0x1f) - ((uint32_t)addr & ~0x1f)))
// Note: The SCB_Clean<...> functions automatically align their arguments to cover full cache lines.
// CLEANINVALIDATE will write back (flush) any dirty lines in this region to RAM, then
// invalidate (evict) the whole region from the cache.
#define MP_HAL_CLEANINVALIDATE_DCACHE(addr, size) SCB_CleanInvalidateDCache_by_Addr((volatile void *)(addr), (size))
// CLEAN will write back (flush) any dirty lines in this region to RAM.
#define MP_HAL_CLEAN_DCACHE(addr, size) SCB_CleanDCache_by_Addr((volatile void *)(addr), (size))
#else
#define MP_HAL_CLEANINVALIDATE_DCACHE(addr, size)
#define MP_HAL_CLEAN_DCACHE(addr, size)