| /* |
| * Copyright © 2009 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> |
| * Jesse Barnes <jbarnes@virtuousgeek.org> (based on gem_bad_blit.c) |
| * |
| */ |
| |
| #include <stdlib.h> |
| #include <stdio.h> |
| #include <string.h> |
| #include <assert.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 drm_intel_bufmgr *bufmgr; |
| static drm_intel_bo *target_bo; |
| static int has_ppgtt = 0; |
| |
| /* Like the store dword test, but we create new command buffers each time */ |
| static void |
| store_dword_loop(int divider) |
| { |
| int cmd, i, val = 0, ret; |
| uint32_t *buf; |
| drm_intel_bo *cmd_bo; |
| |
| printf("running storedw loop with stall every %i batch\n", divider); |
| |
| cmd = MI_STORE_DWORD_IMM; |
| if (!has_ppgtt) |
| cmd |= MI_MEM_VIRTUAL; |
| |
| for (i = 0; i < SLOW_QUICK(0x80000, 0x10); i++) { |
| cmd_bo = drm_intel_bo_alloc(bufmgr, "cmd bo", 4096, 4096); |
| if (!cmd_bo) { |
| fprintf(stderr, "failed to alloc cmd bo\n"); |
| exit(-1); |
| } |
| |
| drm_intel_bo_map(cmd_bo, 1); |
| buf = cmd_bo->virtual; |
| |
| buf[0] = cmd; |
| buf[1] = 0; |
| buf[2] = target_bo->offset; |
| buf[3] = 0x42000000 + val; |
| |
| ret = drm_intel_bo_references(cmd_bo, target_bo); |
| if (ret) { |
| fprintf(stderr, "failed to link cmd & target bos\n"); |
| exit(-1); |
| } |
| |
| ret = drm_intel_bo_emit_reloc(cmd_bo, 8, target_bo, 0, |
| I915_GEM_DOMAIN_INSTRUCTION, |
| I915_GEM_DOMAIN_INSTRUCTION); |
| if (ret) { |
| fprintf(stderr, "failed to emit reloc\n"); |
| exit(-1); |
| } |
| |
| buf[4] = MI_BATCH_BUFFER_END; |
| buf[5] = MI_BATCH_BUFFER_END; |
| |
| drm_intel_bo_unmap(cmd_bo); |
| |
| ret = drm_intel_bo_references(cmd_bo, target_bo); |
| if (ret != 1) { |
| fprintf(stderr, "bad bo reference count: %d\n", ret); |
| exit(-1); |
| } |
| |
| ret = drm_intel_bo_exec(cmd_bo, 6 * 4, NULL, 0, 0); |
| if (ret) { |
| fprintf(stderr, "bo exec failed: %d\n", ret); |
| exit(-1); |
| } |
| |
| if (i % divider != 0) |
| goto cont; |
| |
| drm_intel_bo_wait_rendering(cmd_bo); |
| |
| drm_intel_bo_map(target_bo, 1); |
| |
| buf = target_bo->virtual; |
| if (buf[0] != (0x42000000 | val)) { |
| fprintf(stderr, |
| "value mismatch: cur 0x%08x, stored 0x%08x\n", |
| buf[0], 0x42000000 | val); |
| exit(-1); |
| } |
| buf[0] = 0; /* let batch write it again */ |
| drm_intel_bo_unmap(target_bo); |
| |
| cont: |
| drm_intel_bo_unreference(cmd_bo); |
| |
| val++; |
| } |
| |
| printf("completed %d writes successfully\n", i); |
| } |
| |
| int main(int argc, char **argv) |
| { |
| int fd; |
| int devid; |
| |
| if (argc != 1) { |
| fprintf(stderr, "usage: %s\n", argv[0]); |
| exit(-1); |
| } |
| |
| fd = drm_open_any(); |
| devid = intel_get_drm_devid(fd); |
| |
| has_ppgtt = gem_uses_aliasing_ppgtt(fd); |
| |
| if (IS_GEN2(devid) || IS_GEN3(devid) || IS_GEN4(devid) || IS_GEN5(devid)) { |
| |
| fprintf(stderr, "MI_STORE_DATA can only use GTT address on gen4+/g33 and" |
| "needs snoopable mem on pre-gen6\n"); |
| return 77; |
| } |
| |
| |
| bufmgr = drm_intel_bufmgr_gem_init(fd, 4096); |
| if (!bufmgr) { |
| fprintf(stderr, "failed to init libdrm\n"); |
| exit(-1); |
| } |
| // drm_intel_bufmgr_gem_enable_reuse(bufmgr); |
| |
| target_bo = drm_intel_bo_alloc(bufmgr, "target bo", 4096, 4096); |
| if (!target_bo) { |
| fprintf(stderr, "failed to alloc target buffer\n"); |
| exit(-1); |
| } |
| |
| store_dword_loop(1); |
| store_dword_loop(2); |
| store_dword_loop(3); |
| store_dword_loop(5); |
| |
| drm_intel_bo_unreference(target_bo); |
| drm_intel_bufmgr_destroy(bufmgr); |
| |
| close(fd); |
| |
| return 0; |
| } |