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alloc: invalidate uncached memory 

Invalidates memory regions, which are requested to be uncached.
This way we can make sure we won't overwrite data by accident.

Signed-off-by: Tomasz Lauda <tomasz.lauda@linux.intel.com>
This commit is contained in:
Tomasz Lauda 2019-12-06 11:38:31 +01:00 committed by Janusz Jankowski
parent bdf4d5a403
commit 8dfb717645
1 changed files with 9 additions and 3 deletions
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12
src/lib/alloc.c
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@ -195,8 +195,10 @@ static void *rmalloc_sys(int zone, int caps, int core, size_t bytes)
dcache_writeback_invalidate_region(cpu_heap,
sizeof(*cpu_heap));
if ((zone & RZONE_FLAG_MASK) == RZONE_FLAG_UNCACHED)
if ((zone & RZONE_FLAG_MASK) == RZONE_FLAG_UNCACHED) {
dcache_invalidate_region(ptr, bytes);
ptr = cache_to_uncache(ptr);
}
return ptr;
}
@ -427,8 +429,10 @@ static void *get_ptr_from_heap(struct mm_heap *heap, int zone, uint32_t caps,
break;
}
if (ptr && (zone & RZONE_FLAG_MASK) == RZONE_FLAG_UNCACHED)
if (ptr && (zone & RZONE_FLAG_MASK) == RZONE_FLAG_UNCACHED) {
dcache_invalidate_region(ptr, bytes);
ptr = cache_to_uncache(ptr);
}
return ptr;
}
@ -777,8 +781,10 @@ static void *alloc_heap_buffer(struct mm_heap *heap, int zone, uint32_t caps,
}
}
if (ptr && ((zone & RZONE_FLAG_MASK) == RZONE_FLAG_UNCACHED))
if (ptr && ((zone & RZONE_FLAG_MASK) == RZONE_FLAG_UNCACHED)) {
dcache_invalidate_region(ptr, bytes);
ptr = cache_to_uncache(ptr);
}
#if CONFIG_DEBUG_BLOCK_FREE
if (ptr)