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ANDROID: dma-heap: Let system heap report total pool size

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This information will be exposed as part of Android Bugreport[1].

[1]:
https://android-review.googlesource.com/q/topic:%22b%252F167709539%22+(status:open%20OR%20status:merged)

Bug: 167709539
Change-Id: I5b810bd18a495fe8e7f4907c047917ba4718796d
Signed-off-by: Hridya Valsaraju <hridya@google.com>
This commit is contained in:
Hridya Valsaraju 2021-02-03 21:05:12 -08:00
commit 1099a4407d
1 changed files with 16 additions and 0 deletions
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16
drivers/dma-buf/heaps/system_heap.c
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@ -500,8 +500,24 @@ static struct dma_buf *system_heap_allocate(struct dma_heap *heap,
return system_heap_do_allocate(heap, len, fd_flags, heap_flags, false);
}
static long system_get_pool_size(struct dma_heap *heap)
{
int i;
long num_pages = 0;
struct dmabuf_page_pool **pool;
pool = pools;
for (i = 0; i < NUM_ORDERS; i++, pool++) {
num_pages += ((*pool)->count[POOL_LOWPAGE] +
(*pool)->count[POOL_HIGHPAGE]) << (*pool)->order;
}
return num_pages << PAGE_SHIFT;
}
static const struct dma_heap_ops system_heap_ops = {
.allocate = system_heap_allocate,
.get_pool_size = system_get_pool_size,
};
static struct dma_buf *system_uncached_heap_allocate(struct dma_heap *heap,