On 29.06.2017 21:47, Marek Olšák wrote:
From: Marek Olšák <marek.ol...@amd.com>
This is cleaner, and we are down to 4 slabs.
---
src/gallium/drivers/radeon/radeon_winsys.h | 62 +++++++++++++++++++++++
src/gallium/winsys/amdgpu/drm/amdgpu_bo.c | 44 +++-------------
src/gallium/winsys/amdgpu/drm/amdgpu_winsys.c | 2 +-
src/gallium/winsys/radeon/drm/radeon_drm_bo.c | 44 +++-------------
src/gallium/winsys/radeon/drm/radeon_drm_winsys.c | 2 +-
5 files changed, 80 insertions(+), 74 deletions(-)
diff --git a/src/gallium/drivers/radeon/radeon_winsys.h
b/src/gallium/drivers/radeon/radeon_winsys.h
index 1be94f7..95543bb 100644
--- a/src/gallium/drivers/radeon/radeon_winsys.h
+++ b/src/gallium/drivers/radeon/radeon_winsys.h
@@ -651,11 +651,73 @@ static inline void radeon_emit(struct radeon_winsys_cs
*cs, uint32_t value)
cs->current.buf[cs->current.cdw++] = value;
}
static inline void radeon_emit_array(struct radeon_winsys_cs *cs,
const uint32_t *values, unsigned count)
{
memcpy(cs->current.buf + cs->current.cdw, values, count * 4);
cs->current.cdw += count;
}
+enum radeon_heap {
+ RADEON_HEAP_VRAM,
+ RADEON_HEAP_VRAM_GTT, /* combined heaps */
+ RADEON_HEAP_GTT_WC,
+ RADEON_HEAP_GTT,
+ RADEON_MAX_SLAB_HEAPS,
+};
+
+static inline enum radeon_bo_domain radeon_domain_from_heap(enum radeon_heap
heap)
+{
+ switch (heap) {
+ case RADEON_HEAP_VRAM:
+ return RADEON_DOMAIN_VRAM;
+ case RADEON_HEAP_VRAM_GTT:
+ return RADEON_DOMAIN_VRAM_GTT;
+ case RADEON_HEAP_GTT_WC:
+ case RADEON_HEAP_GTT:
+ return RADEON_DOMAIN_GTT;
+ default:
+ assert(0);
+ return 0;
+ }
+}
+
+static inline unsigned radeon_flags_from_heap(enum radeon_heap heap)
+{
+ switch (heap) {
+ case RADEON_HEAP_VRAM:
+ case RADEON_HEAP_VRAM_GTT:
+ case RADEON_HEAP_GTT_WC:
+ return RADEON_FLAG_GTT_WC;
+ case RADEON_HEAP_GTT:
+ default:
+ return 0;
+ }
+}
+
+/* Return the heap index for winsys allocators, or -1 on failure. */
+static inline int radeon_get_heap_index(enum radeon_bo_domain domain,
+ enum radeon_bo_flag flags)
+{
+ /* VRAM implies WC (write combining) */
+ assert(!(domain & RADEON_DOMAIN_VRAM) || flags & RADEON_FLAG_GTT_WC);
+
+ /* Unsupported flags: NO_CPU_ACCESS, NO_SUBALLOC, SPARSE. */
+ if (flags & ~RADEON_FLAG_GTT_WC)
+ return -1;
+
+ switch (domain) {
+ case RADEON_DOMAIN_VRAM:
+ return RADEON_HEAP_VRAM;
+ case RADEON_DOMAIN_VRAM_GTT:
+ return RADEON_HEAP_VRAM_GTT;
+ case RADEON_DOMAIN_GTT:
+ if (flags & RADEON_FLAG_GTT_WC)
+ return RADEON_HEAP_GTT_WC;
+ else
+ return RADEON_HEAP_GTT;
+ }
+ return -1;
+}
+
#endif
diff --git a/src/gallium/winsys/amdgpu/drm/amdgpu_bo.c
b/src/gallium/winsys/amdgpu/drm/amdgpu_bo.c
index 9736f44a..5ebe59f 100644
--- a/src/gallium/winsys/amdgpu/drm/amdgpu_bo.c
+++ b/src/gallium/winsys/amdgpu/drm/amdgpu_bo.c
@@ -488,43 +488,27 @@ static const struct pb_vtbl amdgpu_winsys_bo_slab_vtbl = {
amdgpu_bo_slab_destroy
/* other functions are never called */
};
struct pb_slab *amdgpu_bo_slab_alloc(void *priv, unsigned heap,
unsigned entry_size,
unsigned group_index)
{
struct amdgpu_winsys *ws = priv;
struct amdgpu_slab *slab = CALLOC_STRUCT(amdgpu_slab);
- enum radeon_bo_domain domains;
- enum radeon_bo_flag flags = 0;
+ enum radeon_bo_domain domains = radeon_domain_from_heap(heap);
+ enum radeon_bo_flag flags = radeon_flags_from_heap(heap);
uint32_t base_id;
if (!slab)
return NULL;
- if (heap & 1)
- flags |= RADEON_FLAG_GTT_WC;
-
- switch (heap >> 2) {
- case 0:
- domains = RADEON_DOMAIN_VRAM;
- break;
- default:
- case 1:
- domains = RADEON_DOMAIN_VRAM_GTT;
- break;
- case 2:
- domains = RADEON_DOMAIN_GTT;
- break;
- }
-
slab->buffer = amdgpu_winsys_bo(amdgpu_bo_create(&ws->base,
64 * 1024, 64 * 1024,
domains, flags));
if (!slab->buffer)
goto fail;
assert(slab->buffer->bo);
slab->base.num_entries = slab->buffer->base.size / entry_size;
slab->base.num_free = slab->base.num_entries;
@@ -1144,45 +1128,33 @@ static struct pb_buffer *
amdgpu_bo_create(struct radeon_winsys *rws,
uint64_t size,
unsigned alignment,
enum radeon_bo_domain domain,
enum radeon_bo_flag flags)
{
struct amdgpu_winsys *ws = amdgpu_winsys(rws);
struct amdgpu_winsys_bo *bo;
unsigned usage = 0, pb_cache_bucket;
+ /* VRAM implies WC. This is not optional. */
+ if (domain & RADEON_DOMAIN_VRAM)
+ flags |= RADEON_FLAG_GTT_WC;
I'd prefer this as an assert. Otherwise callers might be confused about
being able to leave the flag clear.
With that changed, patches 1-8 are
Reviewed-by: Nicolai Hähnle <nicolai.haeh...@amd.com>
+
/* Sub-allocate small buffers from slabs. */
if (!(flags & (RADEON_FLAG_NO_SUBALLOC | RADEON_FLAG_SPARSE)) &&
size <= (1 << AMDGPU_SLAB_MAX_SIZE_LOG2) &&
alignment <= MAX2(1 << AMDGPU_SLAB_MIN_SIZE_LOG2,
util_next_power_of_two(size))) {
struct pb_slab_entry *entry;
- unsigned heap = 0;
-
- if (flags & RADEON_FLAG_GTT_WC)
- heap |= 1;
- if (flags & ~RADEON_FLAG_GTT_WC)
- goto no_slab;
+ int heap = radeon_get_heap_index(domain, flags);
- switch (domain) {
- case RADEON_DOMAIN_VRAM:
- heap |= 0 * 4;
- break;
- case RADEON_DOMAIN_VRAM_GTT:
- heap |= 1 * 4;
- break;
- case RADEON_DOMAIN_GTT:
- heap |= 2 * 4;
- break;
- default:
+ if (heap < 0 || heap >= RADEON_MAX_SLAB_HEAPS)
goto no_slab;
- }
entry = pb_slab_alloc(&ws->bo_slabs, size, heap);
if (!entry) {
/* Clear the cache and try again. */
pb_cache_release_all_buffers(&ws->bo_cache);
entry = pb_slab_alloc(&ws->bo_slabs, size, heap);
}
if (!entry)
return NULL;
diff --git a/src/gallium/winsys/amdgpu/drm/amdgpu_winsys.c
b/src/gallium/winsys/amdgpu/drm/amdgpu_winsys.c
index 2148c49..ef7b04a 100644
--- a/src/gallium/winsys/amdgpu/drm/amdgpu_winsys.c
+++ b/src/gallium/winsys/amdgpu/drm/amdgpu_winsys.c
@@ -280,21 +280,21 @@ amdgpu_winsys_create(int fd, unsigned flags,
if (!do_winsys_init(ws, fd))
goto fail_alloc;
/* Create managers. */
pb_cache_init(&ws->bo_cache, 500000, ws->check_vm ? 1.0f : 2.0f, 0,
(ws->info.vram_size + ws->info.gart_size) / 8,
amdgpu_bo_destroy, amdgpu_bo_can_reclaim);
if (!pb_slabs_init(&ws->bo_slabs,
AMDGPU_SLAB_MIN_SIZE_LOG2, AMDGPU_SLAB_MAX_SIZE_LOG2,
- 12, /* number of heaps (domain/flags combinations) */
+ RADEON_MAX_SLAB_HEAPS,
ws,
amdgpu_bo_can_reclaim_slab,
amdgpu_bo_slab_alloc,
amdgpu_bo_slab_free))
goto fail_cache;
ws->info.min_alloc_size = 1 << AMDGPU_SLAB_MIN_SIZE_LOG2;
/* init reference */
pipe_reference_init(&ws->reference, 1);
diff --git a/src/gallium/winsys/radeon/drm/radeon_drm_bo.c
b/src/gallium/winsys/radeon/drm/radeon_drm_bo.c
index 81a59e5..a9421d6 100644
--- a/src/gallium/winsys/radeon/drm/radeon_drm_bo.c
+++ b/src/gallium/winsys/radeon/drm/radeon_drm_bo.c
@@ -722,43 +722,27 @@ static const struct pb_vtbl radeon_winsys_bo_slab_vtbl = {
radeon_bo_slab_destroy
/* other functions are never called */
};
struct pb_slab *radeon_bo_slab_alloc(void *priv, unsigned heap,
unsigned entry_size,
unsigned group_index)
{
struct radeon_drm_winsys *ws = priv;
struct radeon_slab *slab = CALLOC_STRUCT(radeon_slab);
- enum radeon_bo_domain domains;
- enum radeon_bo_flag flags = 0;
+ enum radeon_bo_domain domains = radeon_domain_from_heap(heap);
+ enum radeon_bo_flag flags = radeon_flags_from_heap(heap);
unsigned base_hash;
if (!slab)
return NULL;
- if (heap & 1)
- flags |= RADEON_FLAG_GTT_WC;
-
- switch (heap >> 2) {
- case 0:
- domains = RADEON_DOMAIN_VRAM;
- break;
- default:
- case 1:
- domains = RADEON_DOMAIN_VRAM_GTT;
- break;
- case 2:
- domains = RADEON_DOMAIN_GTT;
- break;
- }
-
slab->buffer = radeon_bo(radeon_winsys_bo_create(&ws->base,
64 * 1024, 64 * 1024,
domains, flags));
if (!slab->buffer)
goto fail;
assert(slab->buffer->handle);
slab->base.num_entries = slab->buffer->base.size / entry_size;
slab->base.num_free = slab->base.num_entries;
@@ -931,47 +915,35 @@ radeon_winsys_bo_create(struct radeon_winsys *rws,
struct radeon_drm_winsys *ws = radeon_drm_winsys(rws);
struct radeon_bo *bo;
unsigned usage = 0, pb_cache_bucket;
assert(!(flags & RADEON_FLAG_SPARSE)); /* not supported */
/* Only 32-bit sizes are supported. */
if (size > UINT_MAX)
return NULL;
+ /* VRAM implies WC. This is not optional. */
+ if (domain & RADEON_DOMAIN_VRAM)
+ flags |= RADEON_FLAG_GTT_WC;
+
/* Sub-allocate small buffers from slabs. */
if (!(flags & RADEON_FLAG_NO_SUBALLOC) &&
size <= (1 << RADEON_SLAB_MAX_SIZE_LOG2) &&
ws->info.has_virtual_memory &&
alignment <= MAX2(1 << RADEON_SLAB_MIN_SIZE_LOG2,
util_next_power_of_two(size))) {
struct pb_slab_entry *entry;
- unsigned heap = 0;
+ int heap = radeon_get_heap_index(domain, flags);
- if (flags & RADEON_FLAG_GTT_WC)
- heap |= 1;
- if (flags & ~RADEON_FLAG_GTT_WC)
+ if (heap < 0 || heap >= RADEON_MAX_SLAB_HEAPS)
goto no_slab;
- switch (domain) {
- case RADEON_DOMAIN_VRAM:
- heap |= 0 * 4;
- break;
- case RADEON_DOMAIN_VRAM_GTT:
- heap |= 1 * 4;
- break;
- case RADEON_DOMAIN_GTT:
- heap |= 2 * 4;
- break;
- default:
- goto no_slab;
- }
-
entry = pb_slab_alloc(&ws->bo_slabs, size, heap);
if (!entry) {
/* Clear the cache and try again. */
pb_cache_release_all_buffers(&ws->bo_cache);
entry = pb_slab_alloc(&ws->bo_slabs, size, heap);
}
if (!entry)
return NULL;
diff --git a/src/gallium/winsys/radeon/drm/radeon_drm_winsys.c b/src/gallium/winsys/radeon/drm/radeon_drm_winsys.c
index 8e43b68..ad1db3c 100644
--- a/src/gallium/winsys/radeon/drm/radeon_drm_winsys.c
+++ b/src/gallium/winsys/radeon/drm/radeon_drm_winsys.c
@@ -769,21 +769,21 @@ radeon_drm_winsys_create(int fd, unsigned flags,
radeon_bo_destroy,
radeon_bo_can_reclaim);
if (ws->info.has_virtual_memory) {
/* There is no fundamental obstacle to using slab buffer allocation
* without GPUVM, but enabling it requires making sure that the
drivers
* honor the address offset.
*/
if (!pb_slabs_init(&ws->bo_slabs,
RADEON_SLAB_MIN_SIZE_LOG2,
RADEON_SLAB_MAX_SIZE_LOG2,
- 12,
+ RADEON_MAX_SLAB_HEAPS,
ws,
radeon_bo_can_reclaim_slab,
radeon_bo_slab_alloc,
radeon_bo_slab_free))
goto fail_cache;
ws->info.min_alloc_size = 1 << RADEON_SLAB_MIN_SIZE_LOG2;
} else {
ws->info.min_alloc_size = ws->info.gart_page_size;
}
--
Lerne, wie die Welt wirklich ist,
Aber vergiss niemals, wie sie sein sollte.
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