| /* |
| * Copyright © 2014 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. |
| * |
| */ |
| |
| #include "igt.h" |
| #include <stdio.h> |
| #include <string.h> |
| #include <errno.h> |
| #include <pthread.h> |
| #include <fcntl.h> |
| #include <sys/stat.h> |
| #include <sys/resource.h> |
| |
| |
| IGT_TEST_DESCRIPTION("Fill the Gobal GTT with context objects and VMs\n"); |
| |
| #define OBJECT_SIZE (1024 * 1024) |
| #define NUM_THREADS 8 |
| |
| static int fd; |
| static unsigned devid; |
| static igt_render_copyfunc_t render_copy; |
| |
| static dri_bo **all_bo; |
| static int num_bo; |
| static int bo_per_ctx; |
| |
| static drm_intel_context **all_ctx; |
| static int num_ctx; |
| static int ctx_per_thread; |
| |
| static void xchg_ptr(void *array, unsigned i, unsigned j) |
| { |
| void **A = array; |
| igt_swap(A[i], A[j]); |
| } |
| |
| static void xchg_int(void *array, unsigned i, unsigned j) |
| { |
| int *A = array; |
| igt_swap(A[i], A[j]); |
| } |
| |
| static int reopen(int _fd) |
| { |
| struct stat st; |
| char name[128]; |
| |
| igt_assert(fstat(_fd, &st) == 0); |
| |
| sprintf(name, "/dev/dri/card%u", (unsigned)(st.st_rdev & 0x7f)); |
| return open(name, O_RDWR); |
| } |
| |
| static void *thread(void *bufmgr) |
| { |
| struct intel_batchbuffer *batch; |
| dri_bo **bo; |
| drm_intel_context **ctx; |
| int c, b; |
| |
| batch = intel_batchbuffer_alloc(bufmgr, devid); |
| |
| bo = malloc(num_bo * sizeof(dri_bo *)); |
| igt_assert(bo); |
| memcpy(bo, all_bo, num_bo * sizeof(dri_bo *)); |
| |
| ctx = malloc(num_ctx * sizeof(drm_intel_context *)); |
| igt_assert(ctx); |
| memcpy(ctx, all_ctx, num_ctx * sizeof(drm_intel_context *)); |
| igt_permute_array(ctx, num_ctx, xchg_ptr); |
| |
| for (c = 0; c < ctx_per_thread; c++) { |
| igt_permute_array(bo, num_bo, xchg_ptr); |
| for (b = 0; b < bo_per_ctx; b++) { |
| struct igt_buf src, dst; |
| |
| src.bo = bo[b % num_bo]; |
| src.stride = 64; |
| src.size = OBJECT_SIZE; |
| src.tiling = I915_TILING_NONE; |
| |
| dst.bo = bo[(b+1) % num_bo]; |
| dst.stride = 64; |
| dst.size = OBJECT_SIZE; |
| dst.tiling = I915_TILING_NONE; |
| |
| render_copy(batch, ctx[c % num_ctx], |
| &src, 0, 0, 16, 16, &dst, 0, 0); |
| } |
| } |
| |
| free(ctx); |
| free(bo); |
| intel_batchbuffer_free(batch); |
| |
| return NULL; |
| } |
| |
| static int uses_ppgtt(int _fd) |
| { |
| struct drm_i915_getparam gp; |
| int val = 0; |
| |
| memset(&gp, 0, sizeof(gp)); |
| gp.param = 18; /* HAS_ALIASING_PPGTT */ |
| gp.value = &val; |
| |
| if (drmIoctl(_fd, DRM_IOCTL_I915_GETPARAM, &gp)) |
| return 0; |
| |
| errno = 0; |
| return val; |
| } |
| |
| static void |
| processes(void) |
| { |
| int *all_fds; |
| uint64_t aperture; |
| struct rlimit rlim; |
| int ppgtt_mode; |
| int ctx_size; |
| int obj_size; |
| int n; |
| |
| igt_skip_on_simulation(); |
| |
| fd = drm_open_any_render(); |
| devid = intel_get_drm_devid(fd); |
| aperture = gem_aperture_size(fd); |
| |
| ppgtt_mode = uses_ppgtt(fd); |
| igt_require(ppgtt_mode); |
| |
| render_copy = igt_get_render_copyfunc(devid); |
| igt_require_f(render_copy, "no render-copy function\n"); |
| |
| if (ppgtt_mode > 1) |
| ctx_size = aperture >> 10; /* Assume full-ppgtt of maximum size */ |
| else |
| ctx_size = 64 << 10; /* Most gen require at least 64k for ctx */ |
| num_ctx = 3 * (aperture / ctx_size) / 2; |
| igt_info("Creating %d contexts (assuming of size %d)\n", |
| num_ctx, ctx_size); |
| intel_require_memory(num_ctx, ctx_size, CHECK_RAM | CHECK_SWAP); |
| |
| /* tweak rlimits to allow us to create this many files */ |
| igt_assert(getrlimit(RLIMIT_NOFILE, &rlim) == 0); |
| if (rlim.rlim_cur < ALIGN(num_ctx + 1024, 1024)) { |
| rlim.rlim_cur = ALIGN(num_ctx + 1024, 1024); |
| if (rlim.rlim_cur > rlim.rlim_max) |
| rlim.rlim_max = rlim.rlim_cur; |
| igt_assert(setrlimit(RLIMIT_NOFILE, &rlim) == 0); |
| } |
| |
| all_fds = malloc(num_ctx * sizeof(int)); |
| igt_assert(all_fds); |
| for (n = 0; n < num_ctx; n++) { |
| all_fds[n] = reopen(fd); |
| if (all_fds[n] == -1) { |
| int err = errno; |
| for (int i = n; i--; ) |
| close(all_fds[i]); |
| free(all_fds); |
| errno = err; |
| igt_assert_f(0, "failed to create context %d/%d\n", n, num_ctx); |
| } |
| } |
| |
| num_bo = 2 * num_ctx; |
| obj_size = (2 * aperture / num_bo + 4095) & -4096; |
| igt_info("Creating %d surfaces (of size %d)\n", num_bo, obj_size); |
| intel_require_memory(num_bo, obj_size, CHECK_RAM); |
| |
| igt_fork(child, NUM_THREADS) { |
| drm_intel_bufmgr *bufmgr; |
| struct intel_batchbuffer *batch; |
| int c; |
| |
| igt_permute_array(all_fds, num_ctx, xchg_int); |
| |
| for (c = 0; c < num_ctx; c++) { |
| struct igt_buf src, dst; |
| |
| bufmgr = drm_intel_bufmgr_gem_init(all_fds[c], 4096); |
| igt_assert(bufmgr); |
| batch = intel_batchbuffer_alloc(bufmgr, devid); |
| |
| src.bo = drm_intel_bo_alloc(bufmgr, "", obj_size, 0); |
| igt_assert(src.bo); |
| src.stride = 64; |
| src.size = obj_size; |
| src.tiling = I915_TILING_NONE; |
| |
| dst.bo = drm_intel_bo_alloc(bufmgr, "", obj_size, 0); |
| igt_assert(dst.bo); |
| dst.stride = 64; |
| dst.size = obj_size; |
| dst.tiling = I915_TILING_NONE; |
| |
| render_copy(batch, NULL, |
| &src, 0, 0, 16, 16, &dst, 0, 0); |
| |
| intel_batchbuffer_free(batch); |
| drm_intel_bo_unreference(src.bo); |
| drm_intel_bo_unreference(dst.bo); |
| drm_intel_bufmgr_destroy(bufmgr); |
| } |
| } |
| igt_waitchildren(); |
| |
| for (n = 0; n < num_ctx; n++) |
| close(all_fds[n]); |
| free(all_fds); |
| close(fd); |
| } |
| |
| static void |
| threads(void) |
| { |
| pthread_t threads[NUM_THREADS]; |
| drm_intel_bufmgr *bufmgr; |
| uint64_t aperture; |
| int ppgtt_mode; |
| int ctx_size; |
| int n; |
| |
| igt_skip_on_simulation(); |
| |
| fd = drm_open_any_render(); |
| devid = intel_get_drm_devid(fd); |
| aperture = gem_aperture_size(fd); |
| |
| ppgtt_mode = uses_ppgtt(fd); |
| igt_require(ppgtt_mode); |
| |
| render_copy = igt_get_render_copyfunc(devid); |
| igt_require_f(render_copy, "no render-copy function\n"); |
| |
| bufmgr = drm_intel_bufmgr_gem_init(fd, 4096); |
| igt_assert(bufmgr); |
| drm_intel_bufmgr_gem_enable_reuse(bufmgr); |
| |
| if (ppgtt_mode > 1) |
| ctx_size = aperture >> 10; /* Assume full-ppgtt of maximum size */ |
| else |
| ctx_size = 64 << 10; /* Most gen require at least 64k for ctx */ |
| num_ctx = 3 * (aperture / ctx_size) / 2; |
| igt_info("Creating %d contexts (assuming of size %d)\n", |
| num_ctx, ctx_size); |
| intel_require_memory(num_ctx, ctx_size, CHECK_RAM | CHECK_SWAP); |
| all_ctx = malloc(num_ctx * sizeof(drm_intel_context *)); |
| igt_assert(all_ctx); |
| for (n = 0; n < num_ctx; n++) { |
| all_ctx[n] = drm_intel_gem_context_create(bufmgr); |
| igt_assert(all_ctx[n]); |
| } |
| |
| num_bo = 3 * (aperture / OBJECT_SIZE) / 2; |
| igt_info("Creating %d surfaces (of size %d)\n", num_bo, OBJECT_SIZE); |
| intel_require_memory(num_bo, OBJECT_SIZE, CHECK_RAM); |
| all_bo = malloc(num_bo * sizeof(dri_bo *)); |
| igt_assert(all_bo); |
| for (n = 0; n < num_bo; n++) { |
| all_bo[n] = drm_intel_bo_alloc(bufmgr, "", OBJECT_SIZE, 0); |
| igt_assert(all_bo[n]); |
| } |
| |
| ctx_per_thread = 3 * num_ctx / NUM_THREADS / 2; |
| bo_per_ctx = 3 * num_bo / NUM_THREADS / 2; |
| |
| for (n = 0; n < NUM_THREADS; n++) |
| pthread_create(&threads[n], NULL, thread, bufmgr); |
| |
| for (n = 0; n < NUM_THREADS; n++) |
| pthread_join(threads[n], NULL); |
| |
| drm_intel_bufmgr_destroy(bufmgr); |
| close(fd); |
| } |
| |
| igt_main |
| { |
| igt_subtest("processes") |
| processes(); |
| |
| igt_subtest("threads") |
| threads(); |
| } |