| /* |
| * 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> |
| * |
| */ |
| |
| /** @file gem_ringfill.c |
| * |
| * This is a test of doing many tiny batchbuffer operations, in the hope of |
| * catching failure to manage the ring properly near full. |
| */ |
| |
| #include "igt.h" |
| #include "igt_device.h" |
| #include "igt_gt.h" |
| #include "igt_vgem.h" |
| |
| #include <signal.h> |
| #include <sys/ioctl.h> |
| |
| #define INTERRUPTIBLE 0x1 |
| #define HANG 0x2 |
| #define CHILD 0x8 |
| #define FORKED 0x8 |
| #define BOMB 0x10 |
| #define SUSPEND 0x20 |
| #define HIBERNATE 0x40 |
| #define NEWFD 0x80 |
| |
| static unsigned int ring_size; |
| |
| static void check_bo(int fd, uint32_t handle) |
| { |
| uint32_t *map; |
| int i; |
| |
| igt_debug("Verifying result\n"); |
| map = gem_mmap__cpu(fd, handle, 0, 4096, PROT_READ); |
| gem_set_domain(fd, handle, I915_GEM_DOMAIN_CPU, 0); |
| for (i = 0; i < 1024; i++) |
| igt_assert_eq(map[i], i); |
| munmap(map, 4096); |
| } |
| |
| static void fill_ring(int fd, |
| struct drm_i915_gem_execbuffer2 *execbuf, |
| unsigned flags, unsigned timeout) |
| { |
| /* The ring we've been using is 128k, and each rendering op |
| * will use at least 8 dwords: |
| * |
| * BATCH_START |
| * BATCH_START offset |
| * MI_FLUSH |
| * STORE_DATA_INDEX |
| * STORE_DATA_INDEX offset |
| * STORE_DATA_INDEX value |
| * MI_USER_INTERRUPT |
| * (padding) |
| * |
| * So iterate just a little more than that -- if we don't fill the ring |
| * doing this, we aren't likely to with this test. |
| */ |
| igt_debug("Executing execbuf %d times\n", 128*1024/(8*4)); |
| igt_until_timeout(timeout) { |
| igt_while_interruptible(flags & INTERRUPTIBLE) { |
| for (typeof(ring_size) i = 0; i < ring_size; i++) |
| gem_execbuf(fd, execbuf); |
| } |
| } |
| } |
| |
| static int setup_execbuf(int fd, |
| struct drm_i915_gem_execbuffer2 *execbuf, |
| struct drm_i915_gem_exec_object2 *obj, |
| struct drm_i915_gem_relocation_entry *reloc, |
| unsigned int ring) |
| { |
| const int gen = intel_gen(intel_get_drm_devid(fd)); |
| const uint32_t bbe = MI_BATCH_BUFFER_END; |
| uint32_t *batch, *b; |
| int ret; |
| int i; |
| |
| memset(execbuf, 0, sizeof(*execbuf)); |
| memset(obj, 0, 2*sizeof(*obj)); |
| memset(reloc, 0, 1024*sizeof(*reloc)); |
| |
| execbuf->buffers_ptr = to_user_pointer(obj); |
| execbuf->flags = ring | (1 << 11) | (1 << 12); |
| |
| if (gen > 3 && gen < 6) |
| execbuf->flags |= I915_EXEC_SECURE; |
| |
| obj[0].handle = gem_create(fd, 4096); |
| gem_write(fd, obj[0].handle, 0, &bbe, sizeof(bbe)); |
| execbuf->buffer_count = 1; |
| ret = __gem_execbuf(fd, execbuf); |
| if (ret) |
| return ret; |
| |
| obj[0].flags |= EXEC_OBJECT_WRITE; |
| obj[1].handle = gem_create(fd, 1024*16 + 4096); |
| |
| obj[1].relocs_ptr = to_user_pointer(reloc); |
| obj[1].relocation_count = 1024; |
| |
| batch = gem_mmap__cpu(fd, obj[1].handle, 0, 16*1024 + 4096, |
| PROT_WRITE | PROT_READ); |
| gem_set_domain(fd, obj[1].handle, |
| I915_GEM_DOMAIN_CPU, I915_GEM_DOMAIN_CPU); |
| |
| b = batch; |
| for (i = 0; i < 1024; i++) { |
| uint64_t offset; |
| |
| reloc[i].presumed_offset = obj[0].offset; |
| reloc[i].offset = (b - batch + 1) * sizeof(*batch); |
| reloc[i].delta = i * sizeof(uint32_t); |
| reloc[i].read_domains = I915_GEM_DOMAIN_INSTRUCTION; |
| reloc[i].write_domain = I915_GEM_DOMAIN_INSTRUCTION; |
| |
| offset = obj[0].offset + reloc[i].delta; |
| *b++ = MI_STORE_DWORD_IMM; |
| if (gen >= 8) { |
| *b++ = offset; |
| *b++ = offset >> 32; |
| } else if (gen >= 4) { |
| if (gen < 6) |
| b[-1] |= 1 << 22; |
| *b++ = 0; |
| *b++ = offset; |
| reloc[i].offset += sizeof(*batch); |
| } else { |
| b[-1] |= 1 << 22; |
| b[-1] -= 1; |
| *b++ = offset; |
| } |
| *b++ = i; |
| } |
| *b++ = MI_BATCH_BUFFER_END; |
| munmap(batch, 16*1024+4096); |
| |
| execbuf->buffer_count = 2; |
| gem_execbuf(fd, execbuf); |
| |
| check_bo(fd, obj[0].handle); |
| return 0; |
| } |
| |
| static void run_test(int fd, unsigned ring, unsigned flags, unsigned timeout) |
| { |
| struct drm_i915_gem_exec_object2 obj[2]; |
| struct drm_i915_gem_relocation_entry reloc[1024]; |
| struct drm_i915_gem_execbuffer2 execbuf; |
| igt_hang_t hang; |
| |
| gem_require_ring(fd, ring); |
| igt_require(gem_can_store_dword(fd, ring)); |
| |
| if (flags & (SUSPEND | HIBERNATE)) |
| run_test(fd, ring, 0, 0); |
| |
| gem_quiescent_gpu(fd); |
| igt_require(setup_execbuf(fd, &execbuf, obj, reloc, ring) == 0); |
| |
| memset(&hang, 0, sizeof(hang)); |
| if (flags & HANG) |
| hang = igt_hang_ring(fd, ring & ~(3<<13)); |
| |
| if (flags & (CHILD | FORKED | BOMB)) { |
| int nchild; |
| |
| if (flags & FORKED) |
| nchild = sysconf(_SC_NPROCESSORS_ONLN); |
| else if (flags & BOMB) |
| nchild = 8*sysconf(_SC_NPROCESSORS_ONLN); |
| else |
| nchild = 1; |
| |
| igt_debug("Forking %d children\n", nchild); |
| igt_fork(child, nchild) { |
| if (flags & NEWFD) { |
| fd = drm_open_driver(DRIVER_INTEL); |
| setup_execbuf(fd, &execbuf, obj, reloc, ring); |
| } |
| fill_ring(fd, &execbuf, flags, timeout); |
| } |
| |
| if (flags & SUSPEND) |
| igt_system_suspend_autoresume(SUSPEND_STATE_MEM, |
| SUSPEND_TEST_NONE); |
| |
| if (flags & HIBERNATE) |
| igt_system_suspend_autoresume(SUSPEND_STATE_DISK, |
| SUSPEND_TEST_NONE); |
| |
| if (flags & NEWFD) |
| fill_ring(fd, &execbuf, flags, timeout); |
| |
| igt_waitchildren(); |
| } else |
| fill_ring(fd, &execbuf, flags, timeout); |
| |
| if (flags & HANG) |
| igt_post_hang_ring(fd, hang); |
| else |
| check_bo(fd, obj[0].handle); |
| |
| gem_close(fd, obj[1].handle); |
| gem_close(fd, obj[0].handle); |
| |
| gem_quiescent_gpu(fd); |
| |
| if (flags & (SUSPEND | HIBERNATE)) |
| run_test(fd, ring, 0, 0); |
| } |
| |
| struct cork { |
| int device; |
| uint32_t handle; |
| uint32_t fence; |
| }; |
| |
| static void plug(int fd, struct cork *c) |
| { |
| struct vgem_bo bo; |
| int dmabuf; |
| |
| c->device = drm_open_driver(DRIVER_VGEM); |
| |
| bo.width = bo.height = 1; |
| bo.bpp = 4; |
| vgem_create(c->device, &bo); |
| c->fence = vgem_fence_attach(c->device, &bo, VGEM_FENCE_WRITE); |
| |
| dmabuf = prime_handle_to_fd(c->device, bo.handle); |
| c->handle = prime_fd_to_handle(fd, dmabuf); |
| close(dmabuf); |
| } |
| |
| static void unplug(struct cork *c) |
| { |
| vgem_fence_signal(c->device, c->fence); |
| close(c->device); |
| } |
| |
| static void alarm_handler(int sig) |
| { |
| } |
| |
| static int __execbuf(int fd, struct drm_i915_gem_execbuffer2 *execbuf) |
| { |
| return ioctl(fd, DRM_IOCTL_I915_GEM_EXECBUFFER2, execbuf); |
| } |
| |
| static unsigned int measure_ring_size(int fd) |
| { |
| struct sigaction sa = { .sa_handler = alarm_handler }; |
| struct drm_i915_gem_exec_object2 obj[2]; |
| struct drm_i915_gem_execbuffer2 execbuf; |
| const uint32_t bbe = MI_BATCH_BUFFER_END; |
| unsigned int count, last; |
| struct itimerval itv; |
| struct cork c; |
| |
| memset(obj, 0, sizeof(obj)); |
| obj[1].handle = gem_create(fd, 4096); |
| gem_write(fd, obj[1].handle, 0, &bbe, sizeof(bbe)); |
| |
| memset(&execbuf, 0, sizeof(execbuf)); |
| execbuf.buffers_ptr = to_user_pointer(obj + 1); |
| execbuf.buffer_count = 1; |
| gem_execbuf(fd, &execbuf); |
| gem_sync(fd, obj[1].handle); |
| |
| plug(fd, &c); |
| obj[0].handle = c.handle; |
| |
| execbuf.buffers_ptr = to_user_pointer(obj); |
| execbuf.buffer_count = 2; |
| |
| sigaction(SIGALRM, &sa, NULL); |
| itv.it_interval.tv_sec = 0; |
| itv.it_interval.tv_usec = 100; |
| itv.it_value.tv_sec = 0; |
| itv.it_value.tv_usec = 1000; |
| setitimer(ITIMER_REAL, &itv, NULL); |
| |
| last = -1; |
| count = 0; |
| do { |
| if (__execbuf(fd, &execbuf) == 0) { |
| count++; |
| continue; |
| } |
| |
| if (last == count) |
| break; |
| |
| last = count; |
| } while (1); |
| |
| memset(&itv, 0, sizeof(itv)); |
| setitimer(ITIMER_REAL, &itv, NULL); |
| |
| unplug(&c); |
| gem_close(fd, obj[1].handle); |
| |
| return count; |
| } |
| |
| igt_main |
| { |
| const struct { |
| const char *suffix; |
| unsigned flags; |
| unsigned timeout; |
| bool basic; |
| } modes[] = { |
| { "", 0, 0, true}, |
| { "-interruptible", INTERRUPTIBLE, 1, true }, |
| { "-hang", HANG, 10, true }, |
| { "-child", CHILD, 0 }, |
| { "-forked", FORKED, 0, true }, |
| { "-fd", FORKED | NEWFD, 0, true }, |
| { "-bomb", BOMB | NEWFD | INTERRUPTIBLE, 150 }, |
| { "-S3", BOMB | SUSPEND, 30 }, |
| { "-S4", BOMB | HIBERNATE, 30 }, |
| { NULL } |
| }, *m; |
| bool master = false; |
| int fd = -1; |
| |
| igt_fixture { |
| int gen; |
| |
| fd = drm_open_driver(DRIVER_INTEL); |
| igt_require_gem(fd); |
| igt_require(gem_can_store_dword(fd, 0)); |
| gen = intel_gen(intel_get_drm_devid(fd)); |
| if (gen > 3 && gen < 6) { /* ctg and ilk need secure batches */ |
| igt_device_set_master(fd); |
| master = true; |
| } |
| |
| ring_size = measure_ring_size(fd); |
| igt_info("Ring size: %d batches\n", ring_size); |
| igt_require(ring_size); |
| } |
| |
| for (m = modes; m->suffix; m++) { |
| const struct intel_execution_engine *e; |
| |
| for (e = intel_execution_engines; e->name; e++) { |
| igt_subtest_f("%s%s%s", |
| m->basic && !e->exec_id ? "basic-" : "", |
| e->name, |
| m->suffix) { |
| igt_skip_on(m->flags & NEWFD && master); |
| if (m->flags & (HANG|SUSPEND|HIBERNATE)) |
| igt_skip_on_simulation(); |
| run_test(fd, e->exec_id | e->flags, |
| m->flags, m->timeout); |
| } |
| } |
| } |
| |
| igt_fixture |
| close(fd); |
| } |