| /* |
| * Copyright © 2016 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 "igt_debugfs.h" |
| #include "igt_aux.h" |
| #include "igt_kmod.h" |
| #include "igt_sysfs.h" |
| #include "igt_core.h" |
| |
| #include <dirent.h> |
| #include <sys/utsname.h> |
| #include <linux/limits.h> |
| #include <signal.h> |
| #include <libgen.h> |
| #include <signal.h> |
| #include <sys/ioctl.h> |
| #include <fcntl.h> |
| |
| |
| #define LOCAL_I915_EXEC_BSD_SHIFT (13) |
| #define LOCAL_I915_EXEC_BSD_MASK (3 << LOCAL_I915_EXEC_BSD_SHIFT) |
| |
| #define ENGINE_MASK (I915_EXEC_RING_MASK | LOCAL_I915_EXEC_BSD_MASK) |
| |
| static void store_dword(int fd, unsigned ring) |
| { |
| const int gen = intel_gen(intel_get_drm_devid(fd)); |
| struct drm_i915_gem_exec_object2 obj[2]; |
| struct drm_i915_gem_relocation_entry reloc; |
| struct drm_i915_gem_execbuffer2 execbuf; |
| uint32_t batch[16]; |
| int i; |
| |
| if (!gem_can_store_dword(fd, ring)) |
| return; |
| |
| if (!gem_has_ring(fd, ring)) |
| return; |
| |
| intel_detect_and_clear_missed_interrupts(fd); |
| memset(&execbuf, 0, sizeof(execbuf)); |
| execbuf.buffers_ptr = (uintptr_t)obj; |
| execbuf.buffer_count = 2; |
| execbuf.flags = ring; |
| if (gen < 6) |
| execbuf.flags |= I915_EXEC_SECURE; |
| |
| memset(obj, 0, sizeof(obj)); |
| obj[0].handle = gem_create(fd, 4096); |
| obj[1].handle = gem_create(fd, 4096); |
| |
| memset(&reloc, 0, sizeof(reloc)); |
| reloc.target_handle = obj[0].handle; |
| reloc.presumed_offset = 0; |
| reloc.offset = sizeof(uint32_t); |
| reloc.delta = 0; |
| reloc.read_domains = I915_GEM_DOMAIN_INSTRUCTION; |
| reloc.write_domain = I915_GEM_DOMAIN_INSTRUCTION; |
| obj[1].relocs_ptr = (uintptr_t)&reloc; |
| obj[1].relocation_count = 1; |
| |
| i = 0; |
| batch[i] = MI_STORE_DWORD_IMM | (gen < 6 ? 1 << 22 : 0); |
| if (gen >= 8) { |
| batch[++i] = 0; |
| batch[++i] = 0; |
| } else if (gen >= 4) { |
| batch[++i] = 0; |
| batch[++i] = 0; |
| reloc.offset += sizeof(uint32_t); |
| } else { |
| batch[i]--; |
| batch[++i] = 0; |
| } |
| batch[++i] = 0xc0ffee; |
| batch[++i] = MI_BATCH_BUFFER_END; |
| gem_write(fd, obj[1].handle, 0, batch, sizeof(batch)); |
| gem_execbuf(fd, &execbuf); |
| gem_close(fd, obj[1].handle); |
| |
| gem_read(fd, obj[0].handle, 0, batch, sizeof(batch)); |
| gem_close(fd, obj[0].handle); |
| igt_assert_eq(*batch, 0xc0ffee); |
| igt_assert_eq(intel_detect_and_clear_missed_interrupts(fd), 0); |
| } |
| |
| static void store_all(int fd) |
| { |
| const int gen = intel_gen(intel_get_drm_devid(fd)); |
| struct drm_i915_gem_exec_object2 obj[2]; |
| struct drm_i915_gem_relocation_entry reloc[32]; |
| struct drm_i915_gem_execbuffer2 execbuf; |
| unsigned engines[16], permuted[16]; |
| uint32_t batch[16]; |
| uint64_t offset; |
| unsigned engine, nengine; |
| int value; |
| int i, j; |
| |
| if (!gem_can_store_dword(fd, 0)) |
| return; |
| |
| memset(&execbuf, 0, sizeof(execbuf)); |
| execbuf.buffers_ptr = (uintptr_t)obj; |
| execbuf.buffer_count = 2; |
| if (gen < 6) |
| execbuf.flags |= I915_EXEC_SECURE; |
| |
| memset(reloc, 0, sizeof(reloc)); |
| memset(obj, 0, sizeof(obj)); |
| obj[0].handle = gem_create(fd, 4096); |
| obj[1].handle = gem_create(fd, 4096); |
| obj[1].relocation_count = 1; |
| |
| offset = sizeof(uint32_t); |
| i = 0; |
| batch[i] = MI_STORE_DWORD_IMM | (gen < 6 ? 1 << 22 : 0); |
| if (gen >= 8) { |
| batch[++i] = 0; |
| batch[++i] = 0; |
| } else if (gen >= 4) { |
| batch[++i] = 0; |
| batch[++i] = 0; |
| offset += sizeof(uint32_t); |
| } else { |
| batch[i]--; |
| batch[++i] = 0; |
| } |
| batch[value = ++i] = 0xc0ffee; |
| batch[++i] = MI_BATCH_BUFFER_END; |
| |
| nengine = 0; |
| intel_detect_and_clear_missed_interrupts(fd); |
| for_each_engine(fd, engine) { |
| if (!gem_can_store_dword(fd, engine)) |
| continue; |
| |
| igt_assert(2*(nengine+1)*sizeof(batch) <= 4096); |
| |
| execbuf.flags &= ~ENGINE_MASK; |
| execbuf.flags |= engine; |
| |
| j = 2*nengine; |
| reloc[j].target_handle = obj[0].handle; |
| reloc[j].presumed_offset = ~0; |
| reloc[j].offset = j*sizeof(batch) + offset; |
| reloc[j].delta = nengine*sizeof(uint32_t); |
| reloc[j].read_domains = I915_GEM_DOMAIN_INSTRUCTION; |
| reloc[j].write_domain = I915_GEM_DOMAIN_INSTRUCTION; |
| obj[1].relocs_ptr = (uintptr_t)&reloc[j]; |
| |
| batch[value] = 0xdeadbeef; |
| gem_write(fd, obj[1].handle, j*sizeof(batch), |
| batch, sizeof(batch)); |
| execbuf.batch_start_offset = j*sizeof(batch); |
| gem_execbuf(fd, &execbuf); |
| |
| j = 2*nengine + 1; |
| reloc[j].target_handle = obj[0].handle; |
| reloc[j].presumed_offset = ~0; |
| reloc[j].offset = j*sizeof(batch) + offset; |
| reloc[j].delta = nengine*sizeof(uint32_t); |
| reloc[j].read_domains = I915_GEM_DOMAIN_INSTRUCTION; |
| reloc[j].write_domain = I915_GEM_DOMAIN_INSTRUCTION; |
| obj[1].relocs_ptr = (uintptr_t)&reloc[j]; |
| |
| batch[value] = nengine; |
| gem_write(fd, obj[1].handle, j*sizeof(batch), |
| batch, sizeof(batch)); |
| execbuf.batch_start_offset = j*sizeof(batch); |
| gem_execbuf(fd, &execbuf); |
| |
| engines[nengine++] = engine; |
| } |
| gem_sync(fd, obj[1].handle); |
| |
| for (i = 0; i < nengine; i++) { |
| obj[1].relocs_ptr = (uintptr_t)&reloc[2*i]; |
| execbuf.batch_start_offset = 2*i*sizeof(batch); |
| memcpy(permuted, engines, nengine*sizeof(engines[0])); |
| igt_permute_array(permuted, nengine, igt_exchange_int); |
| for (j = 0; j < nengine; j++) { |
| execbuf.flags &= ~ENGINE_MASK; |
| execbuf.flags |= permuted[j]; |
| gem_execbuf(fd, &execbuf); |
| } |
| obj[1].relocs_ptr = (uintptr_t)&reloc[2*i+1]; |
| execbuf.batch_start_offset = (2*i+1)*sizeof(batch); |
| execbuf.flags &= ~ENGINE_MASK; |
| execbuf.flags |= engines[i]; |
| gem_execbuf(fd, &execbuf); |
| } |
| gem_close(fd, obj[1].handle); |
| |
| gem_read(fd, obj[0].handle, 0, engines, sizeof(engines)); |
| gem_close(fd, obj[0].handle); |
| |
| for (i = 0; i < nengine; i++) |
| igt_assert_eq_u32(engines[i], i); |
| igt_assert_eq(intel_detect_and_clear_missed_interrupts(fd), 0); |
| } |
| |
| static int |
| reload(const char *opts_i915) |
| { |
| int err = IGT_EXIT_SUCCESS; |
| |
| if ((err = igt_i915_driver_unload())) |
| return err; |
| |
| if ((err = igt_i915_driver_load(opts_i915))) |
| return err; |
| |
| return err; |
| } |
| |
| static void |
| gem_sanitycheck(void) |
| { |
| int err = 0; |
| int fd; |
| struct drm_i915_gem_caching args = {}; |
| |
| |
| fd = __drm_open_driver(DRIVER_INTEL); |
| igt_set_timeout(1, "Module reload timeout!"); |
| |
| if (ioctl(fd, DRM_IOCTL_I915_GEM_SET_CACHING, &args) < 0) |
| err = -errno; |
| |
| igt_set_timeout(0, NULL); |
| close(fd); |
| |
| igt_assert_eq(err, -ENOENT); |
| } |
| |
| static void |
| gem_exec_store(void) |
| { |
| int fd; |
| const struct intel_execution_engine *e; |
| |
| fd = __drm_open_driver(DRIVER_INTEL); |
| igt_fork_hang_detector(fd); |
| |
| for (e = intel_execution_engines; e->name; e++) { |
| if (gem_can_store_dword(fd, e->exec_id | e->flags)) |
| store_dword(fd, e->exec_id | e->flags); |
| } |
| |
| store_all(fd); |
| |
| igt_stop_hang_detector(); |
| close(fd); |
| } |
| |
| static void |
| hda_dynamic_debug(bool enable) |
| { |
| FILE *fp; |
| const char snd_hda_intel_on[] = "module snd_hda_intel +pf"; |
| const char snd_hda_core_on[] = "module snd_hda_core +pf"; |
| |
| const char snd_hda_intel_off[] = "module snd_hda_core =_"; |
| const char snd_hda_core_off[] = "module snd_hda_intel =_"; |
| |
| fp = fopen("/sys/kernel/debug/dynamic_debug/control", "w"); |
| if (!fp) { |
| igt_debug("hda dynamic debug not available\n"); |
| return; |
| } |
| |
| if (enable) { |
| fwrite(snd_hda_intel_on, 1, sizeof(snd_hda_intel_on), fp); |
| fwrite(snd_hda_core_on, 1, sizeof(snd_hda_core_on), fp); |
| } else { |
| fwrite(snd_hda_intel_off, 1, sizeof(snd_hda_intel_off), fp); |
| fwrite(snd_hda_core_off, 1, sizeof(snd_hda_core_off), fp); |
| } |
| |
| fclose(fp); |
| } |
| |
| igt_main |
| { |
| int err; |
| |
| igt_fixture |
| hda_dynamic_debug(true); |
| |
| igt_subtest("basic-reload") { |
| if ((err = reload(NULL))) |
| igt_fail(err); |
| |
| gem_sanitycheck(); |
| gem_exec_store(); |
| } |
| |
| igt_subtest("basic-no-display") |
| igt_assert_eq(reload("disable_display=1"), 0); |
| |
| igt_subtest("basic-reload-inject") { |
| char buf[64]; |
| int i = 0; |
| do { |
| snprintf(buf, sizeof(buf), |
| "inject_load_failure=%d", ++i); |
| } while (reload(buf)); |
| } |
| |
| igt_fixture { |
| if ((err = reload(NULL))) |
| igt_fail(err); |
| |
| gem_sanitycheck(); |
| gem_exec_store(); |
| hda_dynamic_debug(false); |
| } |
| } |