[igt-dev] [PATCH i-g-t 3/4] benchmarks/intel_upload_blit_*: Remove libdrm in upload blits
Zbigniew Kempczyński
zbigniew.kempczynski at intel.com
Tue Nov 22 14:00:06 UTC 2022
Few benchmarks still used libdrm so let's rewrite them to be libdrm
free. I tried to mimic the libdrm behavior as much as possible but
according how libdrm caches handles/mappings there may be some
differences in performance execution.
Signed-off-by: Zbigniew Kempczyński <zbigniew.kempczynski at intel.com>
---
benchmarks/intel_upload_blit_large.c | 131 ++++++++++++---------
benchmarks/intel_upload_blit_large_gtt.c | 130 ++++++++++++---------
benchmarks/intel_upload_blit_large_map.c | 132 ++++++++++++---------
benchmarks/intel_upload_blit_small.c | 139 ++++++++++++++---------
4 files changed, 311 insertions(+), 221 deletions(-)
diff --git a/benchmarks/intel_upload_blit_large.c b/benchmarks/intel_upload_blit_large.c
index 12bbae3d06..af52d7a4e5 100644
--- a/benchmarks/intel_upload_blit_large.c
+++ b/benchmarks/intel_upload_blit_large.c
@@ -45,6 +45,7 @@
*/
#include "igt.h"
+#include "i915/gem_create.h"
#include <stdlib.h>
#include <stdio.h>
#include <string.h>
@@ -72,74 +73,99 @@ get_time_in_secs(void)
}
static void
-do_render(drm_intel_bufmgr *bufmgr, struct intel_batchbuffer *batch,
- drm_intel_bo *dst_bo, int width, int height)
+do_render(int i915, uint32_t dst_handle)
{
- uint32_t data[width * height];
- drm_intel_bo *src_bo;
- int i;
+ struct drm_i915_gem_execbuffer2 exec = {};
+ struct drm_i915_gem_exec_object2 obj[3] = {};
+ struct drm_i915_gem_relocation_entry reloc[2];
static uint32_t seed = 1;
+ uint32_t data[OBJECT_WIDTH * OBJECT_HEIGHT];
+ uint64_t size = OBJECT_WIDTH * OBJECT_HEIGHT * 4, bb_size = 4096;
+ uint32_t src_handle, bb_handle, *bb;
+ uint32_t gen = intel_gen(intel_get_drm_devid(i915));
+ const bool has_64b_reloc = gen >= 8;
+ int i;
+
+ bb_handle = gem_create_from_pool(i915, &bb_size, REGION_SMEM);
+ src_handle = gem_create_from_pool(i915, &size, REGION_SMEM);
- /* Generate some junk. Real workloads would be doing a lot more
- * work to generate the junk.
- */
- for (i = 0; i < width * height; i++) {
+ for (i = 0; i < OBJECT_WIDTH * OBJECT_HEIGHT; i++)
data[i] = seed++;
- }
- /* Upload the junk. */
- src_bo = drm_intel_bo_alloc(bufmgr, "src", sizeof(data), 4096);
- drm_intel_bo_subdata(src_bo, 0, sizeof(data), data);
+ gem_write(i915, src_handle, 0, data, sizeof(data));
/* Render the junk to the dst. */
- BLIT_COPY_BATCH_START(0);
- OUT_BATCH((3 << 24) | /* 32 bits */
+ bb = gem_mmap__device_coherent(i915, bb_handle, 0, bb_size, PROT_WRITE);
+ i = 0;
+ bb[i++] = XY_SRC_COPY_BLT_CMD |
+ XY_SRC_COPY_BLT_WRITE_ALPHA |
+ XY_SRC_COPY_BLT_WRITE_RGB |
+ (6 + 2*(gen >= 8));
+ bb[i++] = (3 << 24) | /* 32 bits */
(0xcc << 16) | /* copy ROP */
- (width * 4) /* dst pitch */);
- OUT_BATCH(0); /* dst x1,y1 */
- OUT_BATCH((height << 16) | width); /* dst x2,y2 */
- OUT_RELOC(dst_bo, I915_GEM_DOMAIN_RENDER, I915_GEM_DOMAIN_RENDER, 0);
- OUT_BATCH(0); /* src x1,y1 */
- OUT_BATCH(width * 4); /* src pitch */
- OUT_RELOC(src_bo, I915_GEM_DOMAIN_RENDER, 0, 0);
- ADVANCE_BATCH();
-
- intel_batchbuffer_flush(batch);
-
- drm_intel_bo_unreference(src_bo);
+ (OBJECT_WIDTH * 4) /* dst pitch */;
+ bb[i++] = 0; /* dst x1,y1 */
+ bb[i++] = (OBJECT_HEIGHT << 16) | OBJECT_WIDTH; /* dst x2,y2 */
+
+ obj[0].handle = dst_handle;
+ obj[0].offset = dst_handle * size;
+ reloc[0].target_handle = dst_handle;
+ reloc[0].presumed_offset = obj[0].offset;
+ reloc[0].offset = sizeof(uint32_t) * i;
+ reloc[0].read_domains = I915_GEM_DOMAIN_RENDER;
+ reloc[0].write_domain = I915_GEM_DOMAIN_RENDER;
+ bb[i++] = obj[0].offset;
+ if (has_64b_reloc)
+ bb[i++] = obj[0].offset >> 32;
+
+ bb[i++] = 0; /* src x1,y1 */
+ bb[i++] = OBJECT_WIDTH * 4; /* src pitch */
+
+ obj[1].handle = src_handle;
+ obj[1].offset = src_handle * size;
+ reloc[1].target_handle = src_handle;
+ reloc[1].presumed_offset = obj[1].offset;
+ reloc[1].offset = sizeof(uint32_t) * i;
+ reloc[1].read_domains = I915_GEM_DOMAIN_RENDER;
+ reloc[1].write_domain = 0;
+ bb[i++] = obj[1].offset;
+ if (has_64b_reloc)
+ bb[i++] = obj[1].offset >> 32;
+
+ obj[2].handle = bb_handle;
+ obj[2].relocs_ptr = to_user_pointer(reloc);
+ obj[2].relocation_count = 2;
+
+ bb[i++] = MI_BATCH_BUFFER_END;
+ gem_munmap(bb, bb_size);
+
+ exec.buffers_ptr = to_user_pointer(obj);
+ exec.buffer_count = 3;
+ exec.flags = gen >= 6 ? I915_EXEC_BLT : 0 | I915_EXEC_NO_RELOC;
+
+ gem_execbuf(i915, &exec);
}
int main(int argc, char **argv)
{
- int fd;
- int object_size = OBJECT_WIDTH * OBJECT_HEIGHT * 4;
double start_time, end_time;
- drm_intel_bo *dst_bo;
- drm_intel_bufmgr *bufmgr;
- struct intel_batchbuffer *batch;
- int i;
-
- fd = drm_open_driver(DRIVER_INTEL);
+ uint32_t dst_handle;
+ int i915, i;
- bufmgr = drm_intel_bufmgr_gem_init(fd, 4096);
- drm_intel_bufmgr_gem_enable_reuse(bufmgr);
-
- batch = intel_batchbuffer_alloc(bufmgr, intel_get_drm_devid(fd));
-
- dst_bo = drm_intel_bo_alloc(bufmgr, "dst", object_size, 4096);
+ i915 = drm_open_driver(DRIVER_INTEL);
+ dst_handle = gem_create(i915, OBJECT_WIDTH * OBJECT_HEIGHT * 4);
/* Prep loop to get us warmed up. */
- for (i = 0; i < 60; i++) {
- do_render(bufmgr, batch, dst_bo, OBJECT_WIDTH, OBJECT_HEIGHT);
- }
- drm_intel_bo_wait_rendering(dst_bo);
+ for (i = 0; i < 60; i++)
+ do_render(i915, dst_handle);
+ gem_sync(i915, dst_handle);
/* Do the actual timing. */
start_time = get_time_in_secs();
- for (i = 0; i < 200; i++) {
- do_render(bufmgr, batch, dst_bo, OBJECT_WIDTH, OBJECT_HEIGHT);
- }
- drm_intel_bo_wait_rendering(dst_bo);
+ for (i = 0; i < 200; i++)
+ do_render(i915, dst_handle);
+ gem_sync(i915, dst_handle);
+
end_time = get_time_in_secs();
printf("%d iterations in %.03f secs: %.01f MB/sec\n", i,
@@ -147,10 +173,5 @@ int main(int argc, char **argv)
(double)i * OBJECT_WIDTH * OBJECT_HEIGHT * 4 / 1024.0 / 1024.0 /
(end_time - start_time));
- intel_batchbuffer_free(batch);
- drm_intel_bufmgr_destroy(bufmgr);
-
- close(fd);
-
- return 0;
+ close(i915);
}
diff --git a/benchmarks/intel_upload_blit_large_gtt.c b/benchmarks/intel_upload_blit_large_gtt.c
index 0b704b57d4..1e991a6b24 100644
--- a/benchmarks/intel_upload_blit_large_gtt.c
+++ b/benchmarks/intel_upload_blit_large_gtt.c
@@ -45,6 +45,7 @@
*/
#include "igt.h"
+#include "i915/gem_create.h"
#include <stdlib.h>
#include <stdio.h>
#include <string.h>
@@ -69,74 +70,98 @@ get_time_in_secs(void)
}
static void
-do_render(drm_intel_bufmgr *bufmgr, struct intel_batchbuffer *batch,
- drm_intel_bo *dst_bo, int width, int height)
+do_render(int i915, uint32_t dst_handle)
{
- uint32_t *data;
- drm_intel_bo *src_bo;
- int i;
+ struct drm_i915_gem_execbuffer2 exec = {};
+ struct drm_i915_gem_exec_object2 obj[3] = {};
+ struct drm_i915_gem_relocation_entry reloc[2];
static uint32_t seed = 1;
+ uint64_t size = OBJECT_WIDTH * OBJECT_HEIGHT * 4, bb_size = 4096;
+ uint32_t *data, src_handle, bb_handle, *bb;
+ uint32_t gen = intel_gen(intel_get_drm_devid(i915));
+ const bool has_64b_reloc = gen >= 8;
+ int i;
- src_bo = drm_intel_bo_alloc(bufmgr, "src", width * height * 4, 4096);
-
- drm_intel_gem_bo_map_gtt(src_bo);
+ bb_handle = gem_create_from_pool(i915, &bb_size, REGION_SMEM);
+ src_handle = gem_create_from_pool(i915, &size, REGION_SMEM);
- data = src_bo->virtual;
- for (i = 0; i < width * height; i++) {
+ data = gem_mmap__gtt(i915, src_handle, size, PROT_WRITE);
+ for (i = 0; i < OBJECT_WIDTH * OBJECT_HEIGHT; i++)
data[i] = seed++;
- }
-
- drm_intel_gem_bo_unmap_gtt(src_bo);
+ gem_munmap(data, size);
/* Render the junk to the dst. */
- BLIT_COPY_BATCH_START(0);
- OUT_BATCH((3 << 24) | /* 32 bits */
+ bb = gem_mmap__device_coherent(i915, bb_handle, 0, bb_size, PROT_WRITE);
+ i = 0;
+ bb[i++] = XY_SRC_COPY_BLT_CMD |
+ XY_SRC_COPY_BLT_WRITE_ALPHA |
+ XY_SRC_COPY_BLT_WRITE_RGB |
+ (6 + 2*(gen >= 8));
+ bb[i++] = (3 << 24) | /* 32 bits */
(0xcc << 16) | /* copy ROP */
- (width * 4) /* dst pitch */);
- OUT_BATCH(0); /* dst x1,y1 */
- OUT_BATCH((height << 16) | width); /* dst x2,y2 */
- OUT_RELOC(dst_bo, I915_GEM_DOMAIN_RENDER, I915_GEM_DOMAIN_RENDER, 0);
- OUT_BATCH(0); /* src x1,y1 */
- OUT_BATCH(width * 4); /* src pitch */
- OUT_RELOC(src_bo, I915_GEM_DOMAIN_RENDER, 0, 0);
- ADVANCE_BATCH();
-
- intel_batchbuffer_flush(batch);
-
- drm_intel_bo_unreference(src_bo);
+ (OBJECT_WIDTH * 4) /* dst pitch */;
+ bb[i++] = 0; /* dst x1,y1 */
+ bb[i++] = (OBJECT_HEIGHT << 16) | OBJECT_WIDTH; /* dst x2,y2 */
+
+ obj[0].handle = dst_handle;
+ obj[0].offset = dst_handle * size;
+ reloc[0].target_handle = dst_handle;
+ reloc[0].presumed_offset = obj[0].offset;
+ reloc[0].offset = sizeof(uint32_t) * i;
+ reloc[0].read_domains = I915_GEM_DOMAIN_RENDER;
+ reloc[0].write_domain = I915_GEM_DOMAIN_RENDER;
+ bb[i++] = obj[0].offset;
+ if (has_64b_reloc)
+ bb[i++] = obj[0].offset >> 32;
+
+ bb[i++] = 0; /* src x1,y1 */
+ bb[i++] = OBJECT_WIDTH * 4; /* src pitch */
+
+ obj[1].handle = src_handle;
+ obj[1].offset = src_handle * size;
+ reloc[1].target_handle = src_handle;
+ reloc[1].presumed_offset = obj[1].offset;
+ reloc[1].offset = sizeof(uint32_t) * i;
+ reloc[1].read_domains = I915_GEM_DOMAIN_RENDER;
+ reloc[1].write_domain = 0;
+ bb[i++] = obj[1].offset;
+ if (has_64b_reloc)
+ bb[i++] = obj[1].offset >> 32;
+
+ obj[2].handle = bb_handle;
+ obj[2].relocs_ptr = to_user_pointer(reloc);
+ obj[2].relocation_count = 2;
+
+ bb[i++] = MI_BATCH_BUFFER_END;
+ gem_munmap(bb, bb_size);
+
+ exec.buffers_ptr = to_user_pointer(obj);
+ exec.buffer_count = 3;
+ exec.flags = gen >= 6 ? I915_EXEC_BLT : 0 | I915_EXEC_NO_RELOC;
+
+ gem_execbuf(i915, &exec);
}
int main(int argc, char **argv)
{
- int fd;
- int object_size = OBJECT_WIDTH * OBJECT_HEIGHT * 4;
double start_time, end_time;
- drm_intel_bo *dst_bo;
- drm_intel_bufmgr *bufmgr;
- struct intel_batchbuffer *batch;
- int i;
-
- fd = drm_open_driver(DRIVER_INTEL);
+ uint32_t dst_handle;
+ int i915, i;
- bufmgr = drm_intel_bufmgr_gem_init(fd, 4096);
- drm_intel_bufmgr_gem_enable_reuse(bufmgr);
-
- batch = intel_batchbuffer_alloc(bufmgr, intel_get_drm_devid(fd));
-
- dst_bo = drm_intel_bo_alloc(bufmgr, "dst", object_size, 4096);
+ i915 = drm_open_driver(DRIVER_INTEL);
+ dst_handle = gem_create(i915, OBJECT_WIDTH * OBJECT_HEIGHT * 4);
/* Prep loop to get us warmed up. */
- for (i = 0; i < 60; i++) {
- do_render(bufmgr, batch, dst_bo, OBJECT_WIDTH, OBJECT_HEIGHT);
- }
- drm_intel_bo_wait_rendering(dst_bo);
+ for (i = 0; i < 60; i++)
+ do_render(i915, dst_handle);
+ gem_sync(i915, dst_handle);
/* Do the actual timing. */
start_time = get_time_in_secs();
- for (i = 0; i < 200; i++) {
- do_render(bufmgr, batch, dst_bo, OBJECT_WIDTH, OBJECT_HEIGHT);
- }
- drm_intel_bo_wait_rendering(dst_bo);
+ for (i = 0; i < 200; i++)
+ do_render(i915, dst_handle);
+ gem_sync(i915, dst_handle);
+
end_time = get_time_in_secs();
printf("%d iterations in %.03f secs: %.01f MB/sec\n", i,
@@ -144,10 +169,5 @@ int main(int argc, char **argv)
(double)i * OBJECT_WIDTH * OBJECT_HEIGHT * 4 / 1024.0 / 1024.0 /
(end_time - start_time));
- intel_batchbuffer_free(batch);
- drm_intel_bufmgr_destroy(bufmgr);
-
- close(fd);
-
- return 0;
+ close(i915);
}
diff --git a/benchmarks/intel_upload_blit_large_map.c b/benchmarks/intel_upload_blit_large_map.c
index ae05434f26..6d3cd748cf 100644
--- a/benchmarks/intel_upload_blit_large_map.c
+++ b/benchmarks/intel_upload_blit_large_map.c
@@ -48,6 +48,7 @@
*/
#include "igt.h"
+#include "i915/gem_create.h"
#include <stdlib.h>
#include <stdio.h>
#include <string.h>
@@ -72,74 +73,99 @@ get_time_in_secs(void)
}
static void
-do_render(drm_intel_bufmgr *bufmgr, struct intel_batchbuffer *batch,
- drm_intel_bo *dst_bo, int width, int height)
+do_render(int i915, uint32_t dst_handle)
{
- uint32_t *data;
- drm_intel_bo *src_bo;
- int i;
+ struct drm_i915_gem_execbuffer2 exec = {};
+ struct drm_i915_gem_exec_object2 obj[3] = {};
+ struct drm_i915_gem_relocation_entry reloc[2];
static uint32_t seed = 1;
+ uint64_t size = OBJECT_WIDTH * OBJECT_HEIGHT * 4, bb_size = 4096;
+ uint32_t *data, src_handle, bb_handle, *bb;
+ uint32_t gen = intel_gen(intel_get_drm_devid(i915));
+ const bool has_64b_reloc = gen >= 8;
+ int i;
- src_bo = drm_intel_bo_alloc(bufmgr, "src", width * height * 4, 4096);
-
- drm_intel_bo_map(src_bo, 1);
+ bb_handle = gem_create_from_pool(i915, &bb_size, REGION_SMEM);
+ src_handle = gem_create_from_pool(i915, &size, REGION_SMEM);
- data = src_bo->virtual;
- for (i = 0; i < width * height; i++) {
+ data = gem_mmap__cpu(i915, src_handle, 0, size, PROT_WRITE);
+ for (i = 0; i < OBJECT_WIDTH * OBJECT_HEIGHT; i++)
data[i] = seed++;
- }
-
- drm_intel_bo_unmap(src_bo);
+ gem_set_domain(i915, src_handle, I915_GEM_DOMAIN_CPU, 0);
+ gem_munmap(data, size);
/* Render the junk to the dst. */
- BLIT_COPY_BATCH_START(0);
- OUT_BATCH((3 << 24) | /* 32 bits */
+ bb = gem_mmap__device_coherent(i915, bb_handle, 0, bb_size, PROT_WRITE);
+ i = 0;
+ bb[i++] = XY_SRC_COPY_BLT_CMD |
+ XY_SRC_COPY_BLT_WRITE_ALPHA |
+ XY_SRC_COPY_BLT_WRITE_RGB |
+ (6 + 2*(gen >= 8));
+ bb[i++] = (3 << 24) | /* 32 bits */
(0xcc << 16) | /* copy ROP */
- (width * 4) /* dst pitch */);
- OUT_BATCH(0); /* dst x1,y1 */
- OUT_BATCH((height << 16) | width); /* dst x2,y2 */
- OUT_RELOC(dst_bo, I915_GEM_DOMAIN_RENDER, I915_GEM_DOMAIN_RENDER, 0);
- OUT_BATCH(0); /* src x1,y1 */
- OUT_BATCH(width * 4); /* src pitch */
- OUT_RELOC(src_bo, I915_GEM_DOMAIN_RENDER, 0, 0);
- ADVANCE_BATCH();
-
- intel_batchbuffer_flush(batch);
-
- drm_intel_bo_unreference(src_bo);
+ (OBJECT_WIDTH * 4) /* dst pitch */;
+ bb[i++] = 0; /* dst x1,y1 */
+ bb[i++] = (OBJECT_HEIGHT << 16) | OBJECT_WIDTH; /* dst x2,y2 */
+
+ obj[0].handle = dst_handle;
+ obj[0].offset = dst_handle * size;
+ reloc[0].target_handle = dst_handle;
+ reloc[0].presumed_offset = obj[0].offset;
+ reloc[0].offset = sizeof(uint32_t) * i;
+ reloc[0].read_domains = I915_GEM_DOMAIN_RENDER;
+ reloc[0].write_domain = I915_GEM_DOMAIN_RENDER;
+ bb[i++] = obj[0].offset;
+ if (has_64b_reloc)
+ bb[i++] = obj[0].offset >> 32;
+
+ bb[i++] = 0; /* src x1,y1 */
+ bb[i++] = OBJECT_WIDTH * 4; /* src pitch */
+
+ obj[1].handle = src_handle;
+ obj[1].offset = src_handle * size;
+ reloc[1].target_handle = src_handle;
+ reloc[1].presumed_offset = obj[1].offset;
+ reloc[1].offset = sizeof(uint32_t) * i;
+ reloc[1].read_domains = I915_GEM_DOMAIN_RENDER;
+ reloc[1].write_domain = 0;
+ bb[i++] = obj[1].offset;
+ if (has_64b_reloc)
+ bb[i++] = obj[1].offset >> 32;
+
+ obj[2].handle = bb_handle;
+ obj[2].relocs_ptr = to_user_pointer(reloc);
+ obj[2].relocation_count = 2;
+
+ bb[i++] = MI_BATCH_BUFFER_END;
+ gem_munmap(bb, bb_size);
+
+ exec.buffers_ptr = to_user_pointer(obj);
+ exec.buffer_count = 3;
+ exec.flags = gen >= 6 ? I915_EXEC_BLT : 0 | I915_EXEC_NO_RELOC;
+
+ gem_execbuf(i915, &exec);
}
int main(int argc, char **argv)
{
- int fd;
- int object_size = OBJECT_WIDTH * OBJECT_HEIGHT * 4;
double start_time, end_time;
- drm_intel_bo *dst_bo;
- drm_intel_bufmgr *bufmgr;
- struct intel_batchbuffer *batch;
- int i;
-
- fd = drm_open_driver(DRIVER_INTEL);
+ uint32_t dst_handle;
+ int i915, i;
- bufmgr = drm_intel_bufmgr_gem_init(fd, 4096);
- drm_intel_bufmgr_gem_enable_reuse(bufmgr);
-
- batch = intel_batchbuffer_alloc(bufmgr, intel_get_drm_devid(fd));
-
- dst_bo = drm_intel_bo_alloc(bufmgr, "dst", object_size, 4096);
+ i915 = drm_open_driver(DRIVER_INTEL);
+ dst_handle = gem_create(i915, OBJECT_WIDTH * OBJECT_HEIGHT * 4);
/* Prep loop to get us warmed up. */
- for (i = 0; i < 60; i++) {
- do_render(bufmgr, batch, dst_bo, OBJECT_WIDTH, OBJECT_HEIGHT);
- }
- drm_intel_bo_wait_rendering(dst_bo);
+ for (i = 0; i < 60; i++)
+ do_render(i915, dst_handle);
+ gem_sync(i915, dst_handle);
/* Do the actual timing. */
start_time = get_time_in_secs();
- for (i = 0; i < 200; i++) {
- do_render(bufmgr, batch, dst_bo, OBJECT_WIDTH, OBJECT_HEIGHT);
- }
- drm_intel_bo_wait_rendering(dst_bo);
+ for (i = 0; i < 200; i++)
+ do_render(i915, dst_handle);
+ gem_sync(i915, dst_handle);
+
end_time = get_time_in_secs();
printf("%d iterations in %.03f secs: %.01f MB/sec\n", i,
@@ -147,10 +173,6 @@ int main(int argc, char **argv)
(double)i * OBJECT_WIDTH * OBJECT_HEIGHT * 4 / 1024.0 / 1024.0 /
(end_time - start_time));
- intel_batchbuffer_free(batch);
- drm_intel_bufmgr_destroy(bufmgr);
-
- close(fd);
-
- return 0;
+ close(i915);
}
+
diff --git a/benchmarks/intel_upload_blit_small.c b/benchmarks/intel_upload_blit_small.c
index 7e3346eb74..525d68e36a 100644
--- a/benchmarks/intel_upload_blit_small.c
+++ b/benchmarks/intel_upload_blit_small.c
@@ -41,6 +41,7 @@
*/
#include "igt.h"
+#include "i915/gem_create.h"
#include <stdlib.h>
#include <stdio.h>
#include <string.h>
@@ -66,21 +67,27 @@ get_time_in_secs(void)
}
static void
-do_render(drm_intel_bufmgr *bufmgr, struct intel_batchbuffer *batch,
- drm_intel_bo *dst_bo, int width, int height)
+do_render(int i915, uint32_t dst_handle)
{
- uint32_t data[64];
- drm_intel_bo *src_bo;
- int i;
+ struct drm_i915_gem_execbuffer2 exec = {};
+ struct drm_i915_gem_exec_object2 obj[3] = {};
+ struct drm_i915_gem_relocation_entry reloc[2];
static uint32_t seed = 1;
+ uint32_t data[OBJECT_WIDTH * OBJECT_HEIGHT];
+ uint64_t size = OBJECT_WIDTH * OBJECT_HEIGHT * 4, bb_size = 4096;
+ uint32_t src_handle, bb_handle, *bb;
+ uint32_t gen = intel_gen(intel_get_drm_devid(i915));
+ const bool has_64b_reloc = gen >= 8;
+ int i;
- src_bo = drm_intel_bo_alloc(bufmgr, "src", width * height * 4, 4096);
+ bb_handle = gem_create_from_pool(i915, &bb_size, REGION_SMEM);
+ src_handle = gem_create_from_pool(i915, &size, REGION_SMEM);
/* Upload some junk. Real workloads would be doing a lot more
* work to generate the junk.
*/
- for (i = 0; i < width * height;) {
- int size, j;
+ for (i = 0; i < OBJECT_WIDTH * OBJECT_HEIGHT; i++) {
+ int subsize, j;
/* Choose a size from 1 to 64 dwords to upload.
* Normal workloads have a distribution of sizes with a
@@ -88,68 +95,92 @@ do_render(drm_intel_bufmgr *bufmgr, struct intel_batchbuffer *batch,
* pile of vertices, most likely), but I'm trying to get at
* the cost of the small uploads here.
*/
- size = random() % 64 + 1;
- if (i + size > width * height)
- size = width * height - i;
+ subsize = random() % 64 + 1;
+ if (i + subsize > OBJECT_WIDTH * OBJECT_HEIGHT)
+ subsize = OBJECT_WIDTH * OBJECT_HEIGHT - i;
- for (j = 0; j < size; j++)
+ for (j = 0; j < subsize; j++)
data[j] = seed++;
/* Upload the junk. */
- drm_intel_bo_subdata(src_bo, i * 4, size * 4, data);
+ //drm_intel_bo_subdata(src_bo, i * 4, size * 4, data);
+ gem_write(i915, src_handle, i * 4, data, subsize * 4);
- i += size;
+ i += subsize;
}
/* Render the junk to the dst. */
- BLIT_COPY_BATCH_START(0);
- OUT_BATCH((3 << 24) | /* 32 bits */
+ bb = gem_mmap__device_coherent(i915, bb_handle, 0, bb_size, PROT_WRITE);
+ i = 0;
+ bb[i++] = XY_SRC_COPY_BLT_CMD |
+ XY_SRC_COPY_BLT_WRITE_ALPHA |
+ XY_SRC_COPY_BLT_WRITE_RGB |
+ (6 + 2*(gen >= 8));
+ bb[i++] = (3 << 24) | /* 32 bits */
(0xcc << 16) | /* copy ROP */
- (width * 4) /* dst pitch */);
- OUT_BATCH(0); /* dst x1,y1 */
- OUT_BATCH((height << 16) | width); /* dst x2,y2 */
- OUT_RELOC(dst_bo, I915_GEM_DOMAIN_RENDER, I915_GEM_DOMAIN_RENDER, 0);
- OUT_BATCH(0); /* src x1,y1 */
- OUT_BATCH(width * 4); /* src pitch */
- OUT_RELOC(src_bo, I915_GEM_DOMAIN_RENDER, 0, 0);
- ADVANCE_BATCH();
-
- intel_batchbuffer_flush(batch);
-
- drm_intel_bo_unreference(src_bo);
+ (OBJECT_WIDTH * 4) /* dst pitch */;
+ bb[i++] = 0; /* dst x1,y1 */
+ bb[i++] = (OBJECT_HEIGHT << 16) | OBJECT_WIDTH; /* dst x2,y2 */
+
+ obj[0].handle = dst_handle;
+ obj[0].offset = dst_handle * size;
+ reloc[0].target_handle = dst_handle;
+ reloc[0].presumed_offset = obj[0].offset;
+ reloc[0].offset = sizeof(uint32_t) * i;
+ reloc[0].read_domains = I915_GEM_DOMAIN_RENDER;
+ reloc[0].write_domain = I915_GEM_DOMAIN_RENDER;
+ bb[i++] = obj[0].offset;
+ if (has_64b_reloc)
+ bb[i++] = obj[0].offset >> 32;
+
+ bb[i++] = 0; /* src x1,y1 */
+ bb[i++] = OBJECT_WIDTH * 4; /* src pitch */
+
+ obj[1].handle = src_handle;
+ obj[1].offset = src_handle * size;
+ reloc[1].target_handle = src_handle;
+ reloc[1].presumed_offset = obj[1].offset;
+ reloc[1].offset = sizeof(uint32_t) * i;
+ reloc[1].read_domains = I915_GEM_DOMAIN_RENDER;
+ reloc[1].write_domain = 0;
+ bb[i++] = obj[1].offset;
+ if (has_64b_reloc)
+ bb[i++] = obj[1].offset >> 32;
+
+ obj[2].handle = bb_handle;
+ obj[2].relocs_ptr = to_user_pointer(reloc);
+ obj[2].relocation_count = 2;
+
+ bb[i++] = MI_BATCH_BUFFER_END;
+ gem_munmap(bb, bb_size);
+
+ exec.buffers_ptr = to_user_pointer(obj);
+ exec.buffer_count = 3;
+ exec.flags = gen >= 6 ? I915_EXEC_BLT : 0 | I915_EXEC_NO_RELOC;
+
+ gem_execbuf(i915, &exec);
}
int main(int argc, char **argv)
{
- int fd;
- int object_size = OBJECT_WIDTH * OBJECT_HEIGHT * 4;
double start_time, end_time;
- drm_intel_bo *dst_bo;
- drm_intel_bufmgr *bufmgr;
- struct intel_batchbuffer *batch;
- int i;
-
- fd = drm_open_driver(DRIVER_INTEL);
-
- bufmgr = drm_intel_bufmgr_gem_init(fd, 4096);
- drm_intel_bufmgr_gem_enable_reuse(bufmgr);
-
- batch = intel_batchbuffer_alloc(bufmgr, intel_get_drm_devid(fd));
+ uint32_t dst_handle;
+ int i915, i;
- dst_bo = drm_intel_bo_alloc(bufmgr, "dst", object_size, 4096);
+ i915 = drm_open_driver(DRIVER_INTEL);
+ dst_handle = gem_create(i915, OBJECT_WIDTH * OBJECT_HEIGHT * 4);
/* Prep loop to get us warmed up. */
- for (i = 0; i < 20; i++) {
- do_render(bufmgr, batch, dst_bo, OBJECT_WIDTH, OBJECT_HEIGHT);
- }
- drm_intel_bo_wait_rendering(dst_bo);
+ for (i = 0; i < 60; i++)
+ do_render(i915, dst_handle);
+ gem_sync(i915, dst_handle);
/* Do the actual timing. */
start_time = get_time_in_secs();
- for (i = 0; i < 1000; i++) {
- do_render(bufmgr, batch, dst_bo, OBJECT_WIDTH, OBJECT_HEIGHT);
- }
- drm_intel_bo_wait_rendering(dst_bo);
+ for (i = 0; i < 1000; i++)
+ do_render(i915, dst_handle);
+ gem_sync(i915, dst_handle);
+
end_time = get_time_in_secs();
printf("%d iterations in %.03f secs: %.01f MB/sec\n", i,
@@ -157,10 +188,6 @@ int main(int argc, char **argv)
(double)i * OBJECT_WIDTH * OBJECT_HEIGHT * 4 / 1024.0 / 1024.0 /
(end_time - start_time));
- intel_batchbuffer_free(batch);
- drm_intel_bufmgr_destroy(bufmgr);
-
- close(fd);
-
- return 0;
+ close(i915);
}
+
--
2.34.1
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