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winsys/amdgpu: sparse buffer debugging helpers 

Reviewed-by: Marek Olšák <marek.olsak@amd.com>
This commit is contained in:
Nicolai Hähnle 2017-02-13 12:51:12 +01:00
parent 0baee15596
commit 47e59a7e36
1 changed files with 61 additions and 0 deletions
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61
src/gallium/winsys/amdgpu/drm/amdgpu_bo.c
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@ -38,6 +38,8 @@
#include <stdio.h>
#include <inttypes.h>
/* Set to 1 for verbose output showing committed sparse buffer ranges. */
#define DEBUG_SPARSE_COMMITS 0
struct amdgpu_sparse_backing_chunk {
uint32_t begin, end;
@ -575,6 +577,61 @@ void amdgpu_bo_slab_free(void *priv, struct pb_slab *pslab)
FREE(slab);
}
#if DEBUG_SPARSE_COMMITS
static void
sparse_dump(struct amdgpu_winsys_bo *bo, const char *func)
{
fprintf(stderr, "%s: %p (size=%"PRIu64", num_va_pages=%u) @ %s\n"
"Commitments:\n",
__func__, bo, bo->base.size, bo->u.sparse.num_va_pages, func);
struct amdgpu_sparse_backing *span_backing = NULL;
uint32_t span_first_backing_page = 0;
uint32_t span_first_va_page = 0;
uint32_t va_page = 0;
for (;;) {
struct amdgpu_sparse_backing *backing = 0;
uint32_t backing_page = 0;
if (va_page < bo->u.sparse.num_va_pages) {
backing = bo->u.sparse.commitments[va_page].backing;
backing_page = bo->u.sparse.commitments[va_page].page;
}
if (span_backing &&
(backing != span_backing ||
backing_page != span_first_backing_page + (va_page - span_first_va_page))) {
fprintf(stderr, " %u..%u: backing=%p:%u..%u\n",
span_first_va_page, va_page - 1, span_backing,
span_first_backing_page,
span_first_backing_page + (va_page - span_first_va_page) - 1);
span_backing = NULL;
}
if (va_page >= bo->u.sparse.num_va_pages)
break;
if (backing && !span_backing) {
span_backing = backing;
span_first_backing_page = backing_page;
span_first_va_page = va_page;
}
va_page++;
}
fprintf(stderr, "Backing:\n");
list_for_each_entry(struct amdgpu_sparse_backing, backing, &bo->u.sparse.backing, list) {
fprintf(stderr, " %p (size=%"PRIu64")\n", backing, backing->bo->base.size);
for (unsigned i = 0; i < backing->num_chunks; ++i)
fprintf(stderr, " %u..%u\n", backing->chunks[i].begin, backing->chunks[i].end);
}
}
#endif
/*
* Attempt to allocate the given number of backing pages. Fewer pages may be
* allocated (depending on the fragmentation of existing backing buffers),
@ -869,6 +926,10 @@ amdgpu_bo_sparse_commit(struct pb_buffer *buf, uint64_t offset, uint64_t size,
mtx_lock(&bo->u.sparse.commit_lock);
#if DEBUG_SPARSE_COMMITS
sparse_dump(bo, __func__);
#endif
if (commit) {
while (va_page < end_va_page) {
uint32_t span_va_page;