| /* |
| * Copyright © 2009,2012,2013 Intel Corporation |
| * |
| * Permission is hereby granted, free of charge, to any person obtaining a |
| * copy of this software and associated documentation files (the "Software"), |
| * to deal in the Software without restriction, including without limitation |
| * the rights to use, copy, modify, merge, publish, distribute, sublicense, |
| * and/or sell copies of the Software, and to permit persons to whom the |
| * Software is furnished to do so, subject to the following conditions: |
| * |
| * The above copyright notice and this permission notice (including the next |
| * paragraph) shall be included in all copies or substantial portions of the |
| * Software. |
| * |
| * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR |
| * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
| * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL |
| * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER |
| * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING |
| * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS |
| * IN THE SOFTWARE. |
| * |
| * Authors: |
| * Eric Anholt <eric@anholt.net> |
| * Chris Wilson <chris@chris-wilson.co.uk> |
| * Daniel Vetter <daniel.vetter@ffwll.ch> |
| * |
| */ |
| |
| /** @file gem_prw_concurrent_blit.c |
| * |
| * This is a test of pread/pwrite behavior when writing to active |
| * buffers. |
| * |
| * Based on gem_gtt_concurrent_blt. |
| */ |
| |
| #include <stdlib.h> |
| #include <stdio.h> |
| #include <string.h> |
| #include <fcntl.h> |
| #include <inttypes.h> |
| #include <errno.h> |
| #include <sys/stat.h> |
| #include <sys/time.h> |
| #include "drm.h" |
| #include "i915_drm.h" |
| #include "drmtest.h" |
| #include "intel_bufmgr.h" |
| #include "intel_batchbuffer.h" |
| #include "intel_gpu_tools.h" |
| |
| static void |
| set_bo(drm_intel_bo *bo, uint32_t val, int width, int height) |
| { |
| int size = width * height; |
| uint32_t *vaddr, *tmp; |
| |
| vaddr = tmp = malloc(size*4); |
| while (size--) |
| *vaddr++ = val; |
| drm_intel_bo_subdata(bo, 0, width*height*4, tmp); |
| free(tmp); |
| } |
| |
| static void |
| cmp_bo(drm_intel_bo *bo, uint32_t val, int width, int height) |
| { |
| int size = width * height; |
| uint32_t *vaddr, *tmp; |
| |
| vaddr = tmp = malloc(size*4); |
| drm_intel_bo_get_subdata(bo, 0, size*4, tmp); |
| while (size--) |
| igt_assert(*vaddr++ == val); |
| free(tmp); |
| } |
| |
| static drm_intel_bo * |
| create_bo(drm_intel_bufmgr *bufmgr, uint32_t val, int width, int height) |
| { |
| drm_intel_bo *bo; |
| |
| bo = drm_intel_bo_alloc(bufmgr, "bo", 4*width*height, 0); |
| igt_assert(bo); |
| |
| return bo; |
| } |
| |
| int |
| main(int argc, char **argv) |
| { |
| drm_intel_bufmgr *bufmgr; |
| struct intel_batchbuffer *batch; |
| int num_buffers = 128, max; |
| drm_intel_bo *src[128], *dst[128], *dummy = NULL; |
| int width = 512, height = 512; |
| int fd, loop, i; |
| |
| igt_subtest_init(argc, argv); |
| igt_skip_on_simulation(); |
| |
| fd = drm_open_any(); |
| |
| max = gem_aperture_size (fd) / (1024 * 1024) / 2; |
| if (num_buffers > max) |
| num_buffers = max; |
| |
| 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)); |
| |
| if (!igt_only_list_subtests()) { |
| for (i = 0; i < num_buffers; i++) { |
| src[i] = create_bo(bufmgr, i, width, height); |
| dst[i] = create_bo(bufmgr, ~i, width, height); |
| } |
| dummy = create_bo(bufmgr, 0, width, height); |
| } |
| |
| /* try to overwrite the source values */ |
| igt_subtest("overwrite-source") { |
| for (i = 0; i < num_buffers; i++) { |
| set_bo(src[i], i, width, height); |
| set_bo(dst[i], i, width, height); |
| } |
| for (i = 0; i < num_buffers; i++) |
| intel_copy_bo(batch, dst[i], src[i], width, height); |
| for (i = num_buffers; i--; ) |
| set_bo(src[i], 0xdeadbeef, width, height); |
| for (i = 0; i < num_buffers; i++) |
| cmp_bo(dst[i], i, width, height); |
| } |
| |
| /* try to read the results before the copy completes */ |
| igt_subtest("early-read") { |
| for (i = num_buffers; i--; ) |
| set_bo(src[i], 0xdeadbeef, width, height); |
| for (i = 0; i < num_buffers; i++) |
| intel_copy_bo(batch, dst[i], src[i], width, height); |
| for (i = num_buffers; i--; ) |
| cmp_bo(dst[i], 0xdeadbeef, width, height); |
| } |
| |
| /* and finally try to trick the kernel into loosing the pending write */ |
| igt_subtest("gpu-read-after-write") { |
| for (i = num_buffers; i--; ) |
| set_bo(src[i], 0xabcdabcd, width, height); |
| for (i = 0; i < num_buffers; i++) |
| intel_copy_bo(batch, dst[i], src[i], width, height); |
| for (i = num_buffers; i--; ) |
| intel_copy_bo(batch, dummy, dst[i], width, height); |
| for (i = num_buffers; i--; ) |
| cmp_bo(dst[i], 0xabcdabcd, width, height); |
| } |
| |
| igt_fork_signal_helper(); |
| |
| /* try to read the results before the copy completes */ |
| igt_subtest("overwrite-source-interruptible") { |
| for (loop = 0; loop < 10; loop++) { |
| gem_quiescent_gpu(fd); |
| for (i = 0; i < num_buffers; i++) { |
| set_bo(src[i], i, width, height); |
| set_bo(dst[i], i, width, height); |
| } |
| for (i = 0; i < num_buffers; i++) |
| intel_copy_bo(batch, dst[i], src[i], width, height); |
| for (i = num_buffers; i--; ) |
| set_bo(src[i], 0xdeadbeef, width, height); |
| for (i = 0; i < num_buffers; i++) |
| cmp_bo(dst[i], i, width, height); |
| } |
| } |
| |
| /* try to read the results before the copy completes */ |
| igt_subtest("early-read-interruptible") { |
| for (loop = 0; loop < 10; loop++) { |
| gem_quiescent_gpu(fd); |
| for (i = num_buffers; i--; ) |
| set_bo(src[i], 0xdeadbeef, width, height); |
| for (i = 0; i < num_buffers; i++) |
| intel_copy_bo(batch, dst[i], src[i], width, height); |
| for (i = num_buffers; i--; ) |
| cmp_bo(dst[i], 0xdeadbeef, width, height); |
| } |
| } |
| |
| /* and finally try to trick the kernel into loosing the pending write */ |
| igt_subtest("gpu-read-after-write-interruptible") { |
| for (loop = 0; loop < 10; loop++) { |
| gem_quiescent_gpu(fd); |
| for (i = num_buffers; i--; ) |
| set_bo(src[i], 0xabcdabcd, width, height); |
| for (i = 0; i < num_buffers; i++) |
| intel_copy_bo(batch, dst[i], src[i], width, height); |
| for (i = num_buffers; i--; ) |
| intel_copy_bo(batch, dummy, dst[i], width, height); |
| for (i = num_buffers; i--; ) |
| cmp_bo(dst[i], 0xabcdabcd, width, height); |
| } |
| } |
| |
| igt_stop_signal_helper(); |
| |
| return 0; |
| } |