You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
370 lines
9.4 KiB
370 lines
9.4 KiB
/*
|
|
* 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 open_parameters(const char *module_name)
|
|
{
|
|
char path[256];
|
|
|
|
snprintf(path, sizeof(path), "/sys/module/%s/parameters", module_name);
|
|
return open(path, O_RDONLY);
|
|
}
|
|
|
|
static int
|
|
inject_fault(const char *module_name, const char *opt, int fault)
|
|
{
|
|
char buf[1024];
|
|
int dir;
|
|
|
|
igt_assert(fault > 0);
|
|
snprintf(buf, sizeof(buf), "%s=%d", opt, fault);
|
|
|
|
if (igt_kmod_load(module_name, buf)) {
|
|
igt_warn("Failed to load module '%s' with options '%s'\n",
|
|
module_name, buf);
|
|
return 1;
|
|
}
|
|
|
|
dir = open_parameters(module_name);
|
|
igt_sysfs_scanf(dir, opt, "%d", &fault);
|
|
close(dir);
|
|
|
|
igt_debug("Loaded '%s %s', result=%d\n", module_name, buf, fault);
|
|
|
|
if (strcmp(module_name, "i915")) /* XXX better ideas! */
|
|
igt_kmod_unload(module_name, 0);
|
|
else
|
|
igt_i915_driver_unload();
|
|
|
|
return fault;
|
|
}
|
|
|
|
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
|
|
{
|
|
igt_subtest("reload") {
|
|
int load_error;
|
|
|
|
igt_i915_driver_unload();
|
|
|
|
hda_dynamic_debug(true);
|
|
load_error = igt_i915_driver_load(NULL);
|
|
hda_dynamic_debug(false);
|
|
|
|
igt_assert_eq(load_error, 0);
|
|
|
|
gem_sanitycheck();
|
|
gem_exec_store();
|
|
|
|
/* only default modparams, can leave module loaded */
|
|
}
|
|
|
|
igt_subtest("reload-no-display") {
|
|
igt_i915_driver_unload();
|
|
|
|
igt_assert_eq(igt_i915_driver_load("disable_display=1"), 0);
|
|
|
|
igt_i915_driver_unload();
|
|
}
|
|
|
|
igt_subtest("reload-with-fault-injection") {
|
|
int i = 0;
|
|
|
|
igt_i915_driver_unload();
|
|
|
|
while (inject_fault("i915", "inject_load_failure", ++i) == 0)
|
|
;
|
|
|
|
/* We expect to hit at least one fault! */
|
|
igt_assert(i > 1);
|
|
|
|
/* inject_fault() leaves the module unloaded */
|
|
}
|
|
|
|
/* Subtests should unload the module themselves if they use modparams */
|
|
}
|