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ion: implement interface to export total_pools_kb

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The ABI interface "/sys/kernel/ion/total_pools_kb"
was declared but not implemented before in Qcom system heap.
Implement it now.

Change-Id: I3140863c10600166d89ed055ba3be8f368d7e92a
Signed-off-by: Zhenhua Huang <zhenhuah@codeaurora.org>
This commit is contained in:
Zhenhua Huang 2021-04-26 14:33:36 +08:00
commit a283738db9
1 changed files with 40 additions and 0 deletions
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40
drivers/staging/android/ion/heaps/ion_msm_system_heap.c
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@ -578,10 +578,50 @@ static int ion_msm_system_heap_shrink(struct ion_heap *heap, gfp_t gfp_mask,
return nr_total;
}
static long ion_msm_system_heap_get_pool_size(struct ion_heap *heap)
{
struct ion_msm_system_heap *sys_heap;
unsigned long total_size = 0;
int i, j;
struct ion_msm_page_pool *pool;
sys_heap = to_msm_system_heap(heap);
for (i = 0; i < NUM_ORDERS; i++) {
pool = sys_heap->uncached_pools[i];
total_size += (1 << pool->order) *
pool->high_count;
total_size += (1 << pool->order) *
pool->low_count;
}
for (i = 0; i < NUM_ORDERS; i++) {
pool = sys_heap->cached_pools[i];
total_size += (1 << pool->order) *
pool->high_count;
total_size += (1 << pool->order) *
pool->low_count;
}
for (i = 0; i < NUM_ORDERS; i++) {
for (j = 0; j < VMID_LAST; j++) {
if (!is_secure_vmid_valid(j))
continue;
pool = sys_heap->secure_pools[j][i];
total_size += (1 << pool->order) *
pool->high_count;
total_size += (1 << pool->order) *
pool->low_count;
}
}
return total_size;
}
static struct ion_heap_ops system_heap_ops = {
.allocate = ion_msm_system_heap_allocate,
.free = ion_msm_system_heap_free,
.shrink = ion_msm_system_heap_shrink,
.get_pool_size = ion_msm_system_heap_get_pool_size,
};
static int ion_msm_system_heap_debug_show(struct ion_heap *heap,