On 02/09/2019 05:02, Chris Wilson wrote:
We don't need to hold struct_mutex now for retiring requests, so drop it
from i915_retire_requests() and i915_gem_wait_for_idle(), finally
removing I915_WAIT_LOCKED for good.
Signed-off-by: Chris Wilson <chris@xxxxxxxxxxxxxxxxxx>
---
.../gpu/drm/i915/gem/i915_gem_client_blt.c | 7 +-
drivers/gpu/drm/i915/gem/i915_gem_context.c | 20 +--
drivers/gpu/drm/i915/gem/i915_gem_pm.c | 45 +++----
.../i915/gem/selftests/i915_gem_coherency.c | 40 +++---
.../drm/i915/gem/selftests/i915_gem_context.c | 4 +-
.../drm/i915/gem/selftests/i915_gem_mman.c | 6 +-
.../i915/gem/selftests/i915_gem_object_blt.c | 4 -
drivers/gpu/drm/i915/gt/selftest_context.c | 4 +-
drivers/gpu/drm/i915/gt/selftest_hangcheck.c | 89 +++----------
drivers/gpu/drm/i915/gt/selftest_lrc.c | 21 ++-
drivers/gpu/drm/i915/gt/selftest_timeline.c | 91 ++++++-------
.../gpu/drm/i915/gt/selftest_workarounds.c | 6 +-
drivers/gpu/drm/i915/i915_debugfs.c | 42 ++----
drivers/gpu/drm/i915/i915_gem.c | 19 ++-
drivers/gpu/drm/i915/i915_request.h | 7 +-
drivers/gpu/drm/i915/selftests/i915_active.c | 8 +-
.../gpu/drm/i915/selftests/i915_gem_evict.c | 2 +-
drivers/gpu/drm/i915/selftests/i915_gem_gtt.c | 4 -
drivers/gpu/drm/i915/selftests/i915_request.c | 125 +++++-------------
.../gpu/drm/i915/selftests/i915_selftest.c | 8 +-
drivers/gpu/drm/i915/selftests/i915_vma.c | 4 -
.../gpu/drm/i915/selftests/igt_flush_test.c | 30 ++---
.../gpu/drm/i915/selftests/igt_flush_test.h | 2 +-
.../gpu/drm/i915/selftests/igt_live_test.c | 9 +-
.../gpu/drm/i915/selftests/mock_gem_device.c | 4 -
25 files changed, 191 insertions(+), 410 deletions(-)
diff --git a/drivers/gpu/drm/i915/gem/i915_gem_client_blt.c b/drivers/gpu/drm/i915/gem/i915_gem_client_blt.c
index ace50bb9ee1f..cf2057e515af 100644
--- a/drivers/gpu/drm/i915/gem/i915_gem_client_blt.c
+++ b/drivers/gpu/drm/i915/gem/i915_gem_client_blt.c
@@ -166,7 +166,6 @@ static int move_to_active(struct i915_vma *vma, struct i915_request *rq)
static void clear_pages_worker(struct work_struct *work)
{
struct clear_pages_work *w = container_of(work, typeof(*w), work);
- struct drm_i915_private *i915 = w->ce->engine->i915;
struct drm_i915_gem_object *obj = w->sleeve->vma->obj;
struct i915_vma *vma = w->sleeve->vma;
struct i915_request *rq;
@@ -184,11 +183,9 @@ static void clear_pages_worker(struct work_struct *work)
obj->read_domains = I915_GEM_GPU_DOMAINS;
obj->write_domain = 0;
- /* XXX: we need to kill this */
- mutex_lock(&i915->drm.struct_mutex);
err = i915_vma_pin(vma, 0, 0, PIN_USER);
if (unlikely(err))
- goto out_unlock;
+ goto out_signal;
batch = intel_emit_vma_fill_blt(w->ce, vma, w->value);
if (IS_ERR(batch)) {
@@ -240,8 +237,6 @@ static void clear_pages_worker(struct work_struct *work)
intel_emit_vma_release(w->ce, batch);
out_unpin:
i915_vma_unpin(vma);
-out_unlock:
- mutex_unlock(&i915->drm.struct_mutex);
out_signal:
if (unlikely(err)) {
dma_fence_set_error(&w->dma, err);
diff --git a/drivers/gpu/drm/i915/gem/i915_gem_context.c b/drivers/gpu/drm/i915/gem/i915_gem_context.c
index b8ddcf7899a1..3452f1497094 100644
--- a/drivers/gpu/drm/i915/gem/i915_gem_context.c
+++ b/drivers/gpu/drm/i915/gem/i915_gem_context.c
@@ -1161,8 +1161,7 @@ gen8_modify_rpcs(struct intel_context *ce, struct intel_sseu sseu)
}
static int
-__intel_context_reconfigure_sseu(struct intel_context *ce,
- struct intel_sseu sseu)
+intel_context_reconfigure_sseu(struct intel_context *ce, struct intel_sseu sseu)
{
int ret;
@@ -1185,23 +1184,6 @@ __intel_context_reconfigure_sseu(struct intel_context *ce,
return ret;
}
-static int
-intel_context_reconfigure_sseu(struct intel_context *ce, struct intel_sseu sseu)
-{
- struct drm_i915_private *i915 = ce->engine->i915;
- int ret;
-
- ret = mutex_lock_interruptible(&i915->drm.struct_mutex);
- if (ret)
- return ret;
-
- ret = __intel_context_reconfigure_sseu(ce, sseu);
-
- mutex_unlock(&i915->drm.struct_mutex);
-
- return ret;
-}
-
static int
user_to_context_sseu(struct drm_i915_private *i915,
const struct drm_i915_gem_context_param_sseu *user,
diff --git a/drivers/gpu/drm/i915/gem/i915_gem_pm.c b/drivers/gpu/drm/i915/gem/i915_gem_pm.c
index 6e4cc177cc7a..fec0b410d1d9 100644
--- a/drivers/gpu/drm/i915/gem/i915_gem_pm.c
+++ b/drivers/gpu/drm/i915/gem/i915_gem_pm.c
@@ -48,11 +48,7 @@ static void retire_work_handler(struct work_struct *work)
struct drm_i915_private *i915 =
container_of(work, typeof(*i915), gem.retire_work.work);
- /* Come back later if the device is busy... */
- if (mutex_trylock(&i915->drm.struct_mutex)) {
- i915_retire_requests(i915);
- mutex_unlock(&i915->drm.struct_mutex);
- }
+ i915_retire_requests(i915);
queue_delayed_work(i915->wq,
&i915->gem.retire_work,
@@ -86,26 +82,23 @@ static bool switch_to_kernel_context_sync(struct intel_gt *gt)
{
bool result = !intel_gt_is_wedged(gt);
- do {
- if (i915_gem_wait_for_idle(gt->i915,
- I915_WAIT_LOCKED |
- I915_WAIT_FOR_IDLE_BOOST,
- I915_GEM_IDLE_TIMEOUT) == -ETIME) {
- /* XXX hide warning from gem_eio */
- if (i915_modparams.reset) {
- dev_err(gt->i915->drm.dev,
- "Failed to idle engines, declaring wedged!\n");
- GEM_TRACE_DUMP();
- }
-
- /*
- * Forcibly cancel outstanding work and leave
- * the gpu quiet.
- */
- intel_gt_set_wedged(gt);
- result = false;
+ if (i915_gem_wait_for_idle(gt->i915,
+ I915_WAIT_FOR_IDLE_BOOST,
+ I915_GEM_IDLE_TIMEOUT) == -ETIME) {
+ /* XXX hide warning from gem_eio */
+ if (i915_modparams.reset) {
+ dev_err(gt->i915->drm.dev,
+ "Failed to idle engines, declaring wedged!\n");
+ GEM_TRACE_DUMP();
}
- } while (i915_retire_requests(gt->i915) && result);
+
+ /*
+ * Forcibly cancel outstanding work and leave
+ * the gpu quiet.
+ */
+ intel_gt_set_wedged(gt);
+ result = false;
+ }
if (intel_gt_pm_wait_for_idle(gt))
result = false;
@@ -125,8 +118,6 @@ void i915_gem_suspend(struct drm_i915_private *i915)
intel_wakeref_auto(&i915->ggtt.userfault_wakeref, 0);
flush_workqueue(i915->wq);
- mutex_lock(&i915->drm.struct_mutex);
-
/*
* We have to flush all the executing contexts to main memory so
* that they can saved in the hibernation image. To ensure the last
@@ -138,8 +129,6 @@ void i915_gem_suspend(struct drm_i915_private *i915)
*/
switch_to_kernel_context_sync(&i915->gt);
- mutex_unlock(&i915->drm.struct_mutex);
-
cancel_delayed_work_sync(&i915->gt.hangcheck.work);
i915_gem_drain_freed_objects(i915);
diff --git a/drivers/gpu/drm/i915/gem/selftests/i915_gem_coherency.c b/drivers/gpu/drm/i915/gem/selftests/i915_gem_coherency.c
index 0ff7a89aadca..549810f70aeb 100644
--- a/drivers/gpu/drm/i915/gem/selftests/i915_gem_coherency.c
+++ b/drivers/gpu/drm/i915/gem/selftests/i915_gem_coherency.c
@@ -7,6 +7,7 @@
#include <linux/prime_numbers.h>
#include "gt/intel_gt.h"
+#include "gt/intel_gt_pm.h"
#include "i915_selftest.h"
#include "selftests/i915_random.h"
@@ -78,7 +79,7 @@ static int gtt_set(struct drm_i915_gem_object *obj,
{
struct i915_vma *vma;
u32 __iomem *map;
- int err;
+ int err = 0;
i915_gem_object_lock(obj);
err = i915_gem_object_set_to_gtt_domain(obj, true);
@@ -90,15 +91,21 @@ static int gtt_set(struct drm_i915_gem_object *obj,
if (IS_ERR(vma))
return PTR_ERR(vma);
+ intel_gt_pm_get(vma->vm->gt);
+
map = i915_vma_pin_iomap(vma);
i915_vma_unpin(vma);
- if (IS_ERR(map))
- return PTR_ERR(map);
+ if (IS_ERR(map)) {
+ err = PTR_ERR(map);
+ goto out_rpm;
+ }
iowrite32(v, &map[offset / sizeof(*map)]);
i915_vma_unpin_iomap(vma);
- return 0;
+out_rpm:
+ intel_gt_pm_put(vma->vm->gt);
+ return err;
}
static int gtt_get(struct drm_i915_gem_object *obj,
@@ -107,7 +114,7 @@ static int gtt_get(struct drm_i915_gem_object *obj,
{
struct i915_vma *vma;
u32 __iomem *map;
- int err;
+ int err = 0;
i915_gem_object_lock(obj);
err = i915_gem_object_set_to_gtt_domain(obj, false);
@@ -119,15 +126,21 @@ static int gtt_get(struct drm_i915_gem_object *obj,
if (IS_ERR(vma))
return PTR_ERR(vma);
+ intel_gt_pm_get(vma->vm->gt);
+
map = i915_vma_pin_iomap(vma);
i915_vma_unpin(vma);
- if (IS_ERR(map))
- return PTR_ERR(map);
+ if (IS_ERR(map)) {
+ err = PTR_ERR(map);
+ goto out_rpm;
+ }
*v = ioread32(&map[offset / sizeof(*map)]);
i915_vma_unpin_iomap(vma);
- return 0;
+out_rpm:
+ intel_gt_pm_put(vma->vm->gt);
+ return err;
}
static int wc_set(struct drm_i915_gem_object *obj,
@@ -280,7 +293,6 @@ static int igt_gem_coherency(void *arg)
struct drm_i915_private *i915 = arg;
const struct igt_coherency_mode *read, *write, *over;
struct drm_i915_gem_object *obj;
- intel_wakeref_t wakeref;
unsigned long count, n;
u32 *offsets, *values;
int err = 0;
@@ -299,8 +311,6 @@ static int igt_gem_coherency(void *arg)
values = offsets + ncachelines;
- mutex_lock(&i915->drm.struct_mutex);
- wakeref = intel_runtime_pm_get(&i915->runtime_pm);
for (over = igt_coherency_mode; over->name; over++) {
if (!over->set)
continue;
@@ -326,7 +336,7 @@ static int igt_gem_coherency(void *arg)
obj = i915_gem_object_create_internal(i915, PAGE_SIZE);
if (IS_ERR(obj)) {
err = PTR_ERR(obj);
- goto unlock;
+ goto free;
}
i915_random_reorder(offsets, ncachelines, &prng);
@@ -377,15 +387,13 @@ static int igt_gem_coherency(void *arg)
}
}
}
-unlock:
- intel_runtime_pm_put(&i915->runtime_pm, wakeref);
- mutex_unlock(&i915->drm.struct_mutex);
+free:
kfree(offsets);
return err;
put_object:
i915_gem_object_put(obj);
- goto unlock;
+ goto free;
}
int i915_gem_coherency_live_selftests(struct drm_i915_private *i915)
diff --git a/drivers/gpu/drm/i915/gem/selftests/i915_gem_context.c b/drivers/gpu/drm/i915/gem/selftests/i915_gem_context.c
index aa67c02ba98c..b87e35a713b8 100644
--- a/drivers/gpu/drm/i915/gem/selftests/i915_gem_context.c
+++ b/drivers/gpu/drm/i915/gem/selftests/i915_gem_context.c
@@ -949,7 +949,7 @@ __sseu_test(const char *name,
if (ret)
return ret;
- ret = __intel_context_reconfigure_sseu(ce, sseu);
+ ret = intel_context_reconfigure_sseu(ce, sseu);
if (ret)
goto out_spin;
@@ -1053,7 +1053,7 @@ __igt_ctx_sseu(struct drm_i915_private *i915,
goto out_fail;
out_fail:
- if (igt_flush_test(i915, I915_WAIT_LOCKED))
+ if (igt_flush_test(i915))
ret = -EIO;
intel_context_unpin(ce);
diff --git a/drivers/gpu/drm/i915/gem/selftests/i915_gem_mman.c b/drivers/gpu/drm/i915/gem/selftests/i915_gem_mman.c
index 9c217dfe96a9..39c01bc4eb51 100644
--- a/drivers/gpu/drm/i915/gem/selftests/i915_gem_mman.c
+++ b/drivers/gpu/drm/i915/gem/selftests/i915_gem_mman.c
@@ -393,12 +393,8 @@ static void disable_retire_worker(struct drm_i915_private *i915)
static void restore_retire_worker(struct drm_i915_private *i915)
{
+ igt_flush_test(i915);
intel_gt_pm_put(&i915->gt);
-
- mutex_lock(&i915->drm.struct_mutex);
- igt_flush_test(i915, I915_WAIT_LOCKED);
- mutex_unlock(&i915->drm.struct_mutex);
-
i915_gem_driver_register__shrinker(i915);
}
diff --git a/drivers/gpu/drm/i915/gem/selftests/i915_gem_object_blt.c b/drivers/gpu/drm/i915/gem/selftests/i915_gem_object_blt.c
index c21d747e7d05..9ec55b3a3815 100644
--- a/drivers/gpu/drm/i915/gem/selftests/i915_gem_object_blt.c
+++ b/drivers/gpu/drm/i915/gem/selftests/i915_gem_object_blt.c
@@ -65,9 +65,7 @@ static int igt_fill_blt(void *arg)
if (!(obj->cache_coherent & I915_BO_CACHE_COHERENT_FOR_WRITE))
obj->cache_dirty = true;
- mutex_lock(&i915->drm.struct_mutex);
err = i915_gem_object_fill_blt(obj, ce, val);
- mutex_unlock(&i915->drm.struct_mutex);
if (err)
goto err_unpin;
@@ -166,9 +164,7 @@ static int igt_copy_blt(void *arg)
if (!(dst->cache_coherent & I915_BO_CACHE_COHERENT_FOR_WRITE))
dst->cache_dirty = true;
- mutex_lock(&i915->drm.struct_mutex);
err = i915_gem_object_copy_blt(src, dst, ce);
- mutex_unlock(&i915->drm.struct_mutex);
if (err)
goto err_unpin;
diff --git a/drivers/gpu/drm/i915/gt/selftest_context.c b/drivers/gpu/drm/i915/gt/selftest_context.c
index 1420533e8fd5..883739354b07 100644
--- a/drivers/gpu/drm/i915/gt/selftest_context.c
+++ b/drivers/gpu/drm/i915/gt/selftest_context.c
@@ -312,7 +312,7 @@ static int live_active_context(void *arg)
if (err)
break;
- err = igt_flush_test(gt->i915, I915_WAIT_LOCKED);
+ err = igt_flush_test(gt->i915);
if (err)
break;
}
@@ -425,7 +425,7 @@ static int live_remote_context(void *arg)
if (err)
break;
- err = igt_flush_test(gt->i915, I915_WAIT_LOCKED);
+ err = igt_flush_test(gt->i915);
if (err)
break;
}
diff --git a/drivers/gpu/drm/i915/gt/selftest_hangcheck.c b/drivers/gpu/drm/i915/gt/selftest_hangcheck.c
index e53eea1050f8..fc4d02406536 100644
--- a/drivers/gpu/drm/i915/gt/selftest_hangcheck.c
+++ b/drivers/gpu/drm/i915/gt/selftest_hangcheck.c
@@ -58,7 +58,9 @@ static int hang_init(struct hang *h, struct intel_gt *gt)
memset(h, 0, sizeof(*h));
h->gt = gt;
+ mutex_lock(>->i915->drm.struct_mutex);
h->ctx = kernel_context(gt->i915);
+ mutex_unlock(>->i915->drm.struct_mutex);
if (IS_ERR(h->ctx))
return PTR_ERR(h->ctx);
@@ -285,7 +287,7 @@ static void hang_fini(struct hang *h)
kernel_context_close(h->ctx);
- igt_flush_test(h->gt->i915, I915_WAIT_LOCKED);
+ igt_flush_test(h->gt->i915);
}
static bool wait_until_running(struct hang *h, struct i915_request *rq)
@@ -309,10 +311,9 @@ static int igt_hang_sanitycheck(void *arg)
/* Basic check that we can execute our hanging batch */
- mutex_lock(>->i915->drm.struct_mutex);
err = hang_init(&h, gt);
if (err)
- goto unlock;
+ return err;
for_each_engine(engine, gt->i915, id) {
struct intel_wedge_me w;
@@ -355,8 +356,6 @@ static int igt_hang_sanitycheck(void *arg)
fini:
hang_fini(&h);
-unlock:
- mutex_unlock(>->i915->drm.struct_mutex);
return err;
}
@@ -395,8 +394,6 @@ static int igt_reset_nop(void *arg)
reset_count = i915_reset_count(global);
count = 0;
do {
- mutex_lock(>->i915->drm.struct_mutex);
-
for_each_engine(engine, gt->i915, id) {
int i;
@@ -417,7 +414,6 @@ static int igt_reset_nop(void *arg)
intel_gt_reset(gt, ALL_ENGINES, NULL);
igt_global_reset_unlock(gt);
- mutex_unlock(>->i915->drm.struct_mutex);
if (intel_gt_is_wedged(gt)) {
err = -EIO;
break;
@@ -429,16 +425,13 @@ static int igt_reset_nop(void *arg)
break;
}
- err = igt_flush_test(gt->i915, 0);
+ err = igt_flush_test(gt->i915);
if (err)
break;
} while (time_before(jiffies, end_time));
pr_info("%s: %d resets\n", __func__, count);
- mutex_lock(>->i915->drm.struct_mutex);
- err = igt_flush_test(gt->i915, I915_WAIT_LOCKED);
- mutex_unlock(>->i915->drm.struct_mutex);
-
+ err = igt_flush_test(gt->i915);
out:
mock_file_free(gt->i915, file);
if (intel_gt_is_wedged(gt))
@@ -494,7 +487,6 @@ static int igt_reset_nop_engine(void *arg)
break;
}
- mutex_lock(>->i915->drm.struct_mutex);
for (i = 0; i < 16; i++) {
struct i915_request *rq;
@@ -507,7 +499,6 @@ static int igt_reset_nop_engine(void *arg)
i915_request_add(rq);
}
err = intel_engine_reset(engine, NULL);
- mutex_unlock(>->i915->drm.struct_mutex);
if (err) {
pr_err("i915_reset_engine failed\n");
break;
@@ -533,15 +524,12 @@ static int igt_reset_nop_engine(void *arg)
if (err)
break;
- err = igt_flush_test(gt->i915, 0);
+ err = igt_flush_test(gt->i915);
if (err)
break;
}
- mutex_lock(>->i915->drm.struct_mutex);
- err = igt_flush_test(gt->i915, I915_WAIT_LOCKED);
- mutex_unlock(>->i915->drm.struct_mutex);
-
+ err = igt_flush_test(gt->i915);
out:
mock_file_free(gt->i915, file);
if (intel_gt_is_wedged(gt))
@@ -563,9 +551,7 @@ static int __igt_reset_engine(struct intel_gt *gt, bool active)
return 0;
if (active) {
- mutex_lock(>->i915->drm.struct_mutex);
err = hang_init(&h, gt);
- mutex_unlock(>->i915->drm.struct_mutex);
if (err)
return err;
}
@@ -593,17 +579,14 @@ static int __igt_reset_engine(struct intel_gt *gt, bool active)
if (active) {
struct i915_request *rq;
- mutex_lock(>->i915->drm.struct_mutex);
rq = hang_create_request(&h, engine);
if (IS_ERR(rq)) {
err = PTR_ERR(rq);
- mutex_unlock(>->i915->drm.struct_mutex);
break;
}
i915_request_get(rq);
i915_request_add(rq);
- mutex_unlock(>->i915->drm.struct_mutex);
if (!wait_until_running(&h, rq)) {
struct drm_printer p = drm_info_printer(gt->i915->drm.dev);
@@ -647,7 +630,7 @@ static int __igt_reset_engine(struct intel_gt *gt, bool active)
if (err)
break;
- err = igt_flush_test(gt->i915, 0);
+ err = igt_flush_test(gt->i915);
if (err)
break;
}
@@ -655,11 +638,8 @@ static int __igt_reset_engine(struct intel_gt *gt, bool active)
if (intel_gt_is_wedged(gt))
err = -EIO;
- if (active) {
- mutex_lock(>->i915->drm.struct_mutex);
+ if (active)
hang_fini(&h);
- mutex_unlock(>->i915->drm.struct_mutex);
- }
return err;
}
@@ -741,10 +721,8 @@ static int active_engine(void *data)
struct i915_request *old = rq[idx];
struct i915_request *new;
- mutex_lock(&engine->i915->drm.struct_mutex);
new = igt_request_alloc(ctx[idx], engine);
if (IS_ERR(new)) {
- mutex_unlock(&engine->i915->drm.struct_mutex);
err = PTR_ERR(new);
break;
}
@@ -755,7 +733,6 @@ static int active_engine(void *data)
rq[idx] = i915_request_get(new);
i915_request_add(new);
- mutex_unlock(&engine->i915->drm.struct_mutex);
err = active_request_put(old);
if (err)
@@ -795,9 +772,7 @@ static int __igt_reset_engines(struct intel_gt *gt,
return 0;
if (flags & TEST_ACTIVE) {
- mutex_lock(>->i915->drm.struct_mutex);
err = hang_init(&h, gt);
- mutex_unlock(>->i915->drm.struct_mutex);
if (err)
return err;
@@ -855,17 +830,14 @@ static int __igt_reset_engines(struct intel_gt *gt,
struct i915_request *rq = NULL;
if (flags & TEST_ACTIVE) {
- mutex_lock(>->i915->drm.struct_mutex);
rq = hang_create_request(&h, engine);
if (IS_ERR(rq)) {
err = PTR_ERR(rq);
- mutex_unlock(>->i915->drm.struct_mutex);
break;
}
i915_request_get(rq);
i915_request_add(rq);
- mutex_unlock(>->i915->drm.struct_mutex);
if (!wait_until_running(&h, rq)) {
struct drm_printer p = drm_info_printer(gt->i915->drm.dev);
@@ -977,9 +949,7 @@ static int __igt_reset_engines(struct intel_gt *gt,
if (err)
break;
- mutex_lock(>->i915->drm.struct_mutex);
- err = igt_flush_test(gt->i915, I915_WAIT_LOCKED);
- mutex_unlock(>->i915->drm.struct_mutex);
+ err = igt_flush_test(gt->i915);
if (err)
break;
}
@@ -987,11 +957,8 @@ static int __igt_reset_engines(struct intel_gt *gt,
if (intel_gt_is_wedged(gt))
err = -EIO;
- if (flags & TEST_ACTIVE) {
- mutex_lock(>->i915->drm.struct_mutex);
+ if (flags & TEST_ACTIVE)
hang_fini(&h);
- mutex_unlock(>->i915->drm.struct_mutex);
- }
return err;
}
@@ -1061,7 +1028,6 @@ static int igt_reset_wait(void *arg)
igt_global_reset_lock(gt);
- mutex_lock(>->i915->drm.struct_mutex);
err = hang_init(&h, gt);
if (err)
goto unlock;
@@ -1109,7 +1075,6 @@ static int igt_reset_wait(void *arg)
fini:
hang_fini(&h);
unlock:
- mutex_unlock(>->i915->drm.struct_mutex);
igt_global_reset_unlock(gt);
if (intel_gt_is_wedged(gt))
@@ -1189,10 +1154,9 @@ static int __igt_reset_evict_vma(struct intel_gt *gt,
/* Check that we can recover an unbind stuck on a hanging request */
- mutex_lock(>->i915->drm.struct_mutex);
err = hang_init(&h, gt);
if (err)
- goto unlock;
+ return err;
obj = i915_gem_object_create_internal(gt->i915, SZ_1M);
if (IS_ERR(obj)) {
@@ -1255,8 +1219,6 @@ static int __igt_reset_evict_vma(struct intel_gt *gt,
if (err)
goto out_rq;
- mutex_unlock(>->i915->drm.struct_mutex);
-
if (!wait_until_running(&h, rq)) {
struct drm_printer p = drm_info_printer(gt->i915->drm.dev);
@@ -1305,16 +1267,12 @@ static int __igt_reset_evict_vma(struct intel_gt *gt,
put_task_struct(tsk);
}
- mutex_lock(>->i915->drm.struct_mutex);
out_rq:
i915_request_put(rq);
out_obj:
i915_gem_object_put(obj);
fini:
hang_fini(&h);
-unlock:
- mutex_unlock(>->i915->drm.struct_mutex);
-
if (intel_gt_is_wedged(gt))
return -EIO;
@@ -1396,7 +1354,6 @@ static int igt_reset_queue(void *arg)
igt_global_reset_lock(gt);
- mutex_lock(>->i915->drm.struct_mutex);
err = hang_init(&h, gt);
if (err)
goto unlock;
@@ -1511,7 +1468,7 @@ static int igt_reset_queue(void *arg)
i915_request_put(prev);
- err = igt_flush_test(gt->i915, I915_WAIT_LOCKED);
+ err = igt_flush_test(gt->i915);
if (err)
break;
}
@@ -1519,7 +1476,6 @@ static int igt_reset_queue(void *arg)
fini:
hang_fini(&h);
unlock:
- mutex_unlock(>->i915->drm.struct_mutex);
igt_global_reset_unlock(gt);
if (intel_gt_is_wedged(gt))
@@ -1546,11 +1502,9 @@ static int igt_handle_error(void *arg)
if (!engine || !intel_engine_can_store_dword(engine))
return 0;
- mutex_lock(>->i915->drm.struct_mutex);
-
err = hang_init(&h, gt);
if (err)
- goto err_unlock;
+ return err;
rq = hang_create_request(&h, engine);
if (IS_ERR(rq)) {
@@ -1574,8 +1528,6 @@ static int igt_handle_error(void *arg)
goto err_request;
}
- mutex_unlock(>->i915->drm.struct_mutex);
-
/* Temporarily disable error capture */
error = xchg(&global->first_error, (void *)-1);
@@ -1583,8 +1535,6 @@ static int igt_handle_error(void *arg)
xchg(&global->first_error, error);
- mutex_lock(>->i915->drm.struct_mutex);
-
if (rq->fence.error != -EIO) {
pr_err("Guilty request not identified!\n");
err = -EINVAL;
@@ -1595,8 +1545,6 @@ static int igt_handle_error(void *arg)
i915_request_put(rq);
err_fini:
hang_fini(&h);
-err_unlock:
- mutex_unlock(>->i915->drm.struct_mutex);
return err;
}
@@ -1689,7 +1637,6 @@ static int igt_reset_engines_atomic(void *arg)
return 0;
igt_global_reset_lock(gt);
- mutex_lock(>->i915->drm.struct_mutex);
/* Flush any requests before we get started and check basics */
if (!igt_force_reset(gt))
@@ -1709,9 +1656,7 @@ static int igt_reset_engines_atomic(void *arg)
out:
/* As we poke around the guts, do a full reset before continuing. */
igt_force_reset(gt);
-
unlock:
- mutex_unlock(>->i915->drm.struct_mutex);
igt_global_reset_unlock(gt);
return err;
@@ -1751,10 +1696,6 @@ int intel_hangcheck_live_selftests(struct drm_i915_private *i915)
err = intel_gt_live_subtests(tests, gt);
- mutex_lock(>->i915->drm.struct_mutex);
- igt_flush_test(gt->i915, I915_WAIT_LOCKED);
- mutex_unlock(>->i915->drm.struct_mutex);
-
i915_modparams.enable_hangcheck = saved_hangcheck;
intel_runtime_pm_put(>->i915->runtime_pm, wakeref);
diff --git a/drivers/gpu/drm/i915/gt/selftest_lrc.c b/drivers/gpu/drm/i915/gt/selftest_lrc.c
index aca1b3a9c5de..222a7375c787 100644
--- a/drivers/gpu/drm/i915/gt/selftest_lrc.c
+++ b/drivers/gpu/drm/i915/gt/selftest_lrc.c
@@ -61,7 +61,7 @@ static int live_sanitycheck(void *arg)
}
igt_spinner_end(&spin);
- if (igt_flush_test(i915, I915_WAIT_LOCKED)) {
+ if (igt_flush_test(i915)) {
err = -EIO;
goto err_ctx;
}
@@ -206,8 +206,7 @@ slice_semaphore_queue(struct intel_engine_cs *outer,
if (err)
goto out;
- if (i915_request_wait(head,
- I915_WAIT_LOCKED,
+ if (i915_request_wait(head, 0,
2 * RUNTIME_INFO(outer->i915)->num_engines * (count + 2) * (count + 3)) < 0) {
pr_err("Failed to slice along semaphore chain of length (%d, %d)!\n",
count, n);
@@ -279,7 +278,7 @@ static int live_timeslice_preempt(void *arg)
if (err)
goto err_pin;
- if (igt_flush_test(i915, I915_WAIT_LOCKED)) {
+ if (igt_flush_test(i915)) {
err = -EIO;
goto err_pin;
}
@@ -832,7 +831,7 @@ static int live_nopreempt(void *arg)
goto err_wedged;
}
- if (igt_flush_test(i915, I915_WAIT_LOCKED))
+ if (igt_flush_test(i915))
goto err_wedged;
}
@@ -948,7 +947,7 @@ static int live_suppress_self_preempt(void *arg)
goto err_client_b;
}
- if (igt_flush_test(i915, I915_WAIT_LOCKED))
+ if (igt_flush_test(i915))
goto err_wedged;
}
@@ -1109,7 +1108,7 @@ static int live_suppress_wait_preempt(void *arg)
for (i = 0; i < ARRAY_SIZE(client); i++)
igt_spinner_end(&client[i].spin);
- if (igt_flush_test(i915, I915_WAIT_LOCKED))
+ if (igt_flush_test(i915))
goto err_wedged;
if (engine->execlists.preempt_hang.count) {
@@ -1388,7 +1387,7 @@ static int live_preempt_hang(void *arg)
igt_spinner_end(&spin_hi);
igt_spinner_end(&spin_lo);
- if (igt_flush_test(i915, I915_WAIT_LOCKED)) {
+ if (igt_flush_test(i915)) {
err = -EIO;
goto err_ctx_lo;
}
@@ -1785,7 +1784,7 @@ static int nop_virtual_engine(struct drm_i915_private *i915,
prime, div64_u64(ktime_to_ns(times[1]), prime));
out:
- if (igt_flush_test(i915, I915_WAIT_LOCKED))
+ if (igt_flush_test(i915))
err = -EIO;
for (nc = 0; nc < nctx; nc++) {
@@ -1930,7 +1929,7 @@ static int mask_virtual_engine(struct drm_i915_private *i915,
goto out;
out:
- if (igt_flush_test(i915, I915_WAIT_LOCKED))
+ if (igt_flush_test(i915))
err = -EIO;
for (n = 0; n < nsibling; n++)
@@ -2108,7 +2107,7 @@ static int bond_virtual_engine(struct drm_i915_private *i915,
out:
for (n = 0; !IS_ERR(rq[n]); n++)
i915_request_put(rq[n]);
- if (igt_flush_test(i915, I915_WAIT_LOCKED))
+ if (igt_flush_test(i915))
err = -EIO;
kernel_context_close(ctx);
diff --git a/drivers/gpu/drm/i915/gt/selftest_timeline.c b/drivers/gpu/drm/i915/gt/selftest_timeline.c
index 321481403165..16abfabf08c7 100644
--- a/drivers/gpu/drm/i915/gt/selftest_timeline.c
+++ b/drivers/gpu/drm/i915/gt/selftest_timeline.c
@@ -6,7 +6,7 @@
#include <linux/prime_numbers.h>
-#include "gem/i915_gem_pm.h"
+#include "intel_engine_pm.h"
#include "intel_gt.h"
#include "../selftests/i915_random.h"
@@ -136,7 +136,6 @@ static int mock_hwsp_freelist(void *arg)
goto err_put;
}
- mutex_lock(&state.i915->drm.struct_mutex);
for (p = phases; p->name; p++) {
pr_debug("%s(%s)\n", __func__, p->name);
for_each_prime_number_from(na, 1, 2 * CACHELINES_PER_PAGE) {
@@ -149,7 +148,6 @@ static int mock_hwsp_freelist(void *arg)
out:
for (na = 0; na < state.max; na++)
__mock_hwsp_record(&state, na, NULL);
- mutex_unlock(&state.i915->drm.struct_mutex);
kfree(state.history);
err_put:
drm_dev_put(&state.i915->drm);
@@ -449,8 +447,6 @@ tl_write(struct intel_timeline *tl, struct intel_engine_cs *engine, u32 value)
struct i915_request *rq;
int err;
- lockdep_assert_held(&tl->gt->i915->drm.struct_mutex); /* lazy rq refs */
-
err = intel_timeline_pin(tl);
if (err) {
rq = ERR_PTR(err);
@@ -461,10 +457,14 @@ tl_write(struct intel_timeline *tl, struct intel_engine_cs *engine, u32 value)
if (IS_ERR(rq))
goto out_unpin;
+ i915_request_get(rq);
+
err = emit_ggtt_store_dw(rq, tl->hwsp_offset, value);
i915_request_add(rq);
- if (err)
+ if (err) {
+ i915_request_put(rq);
rq = ERR_PTR(err);
+ }
out_unpin:
intel_timeline_unpin(tl);
@@ -500,7 +500,6 @@ static int live_hwsp_engine(void *arg)
struct intel_timeline **timelines;
struct intel_engine_cs *engine;
enum intel_engine_id id;
- intel_wakeref_t wakeref;
unsigned long count, n;
int err = 0;
@@ -515,14 +514,13 @@ static int live_hwsp_engine(void *arg)
if (!timelines)
return -ENOMEM;
- mutex_lock(&i915->drm.struct_mutex);
- wakeref = intel_runtime_pm_get(&i915->runtime_pm);
-
count = 0;
for_each_engine(engine, i915, id) {
if (!intel_engine_can_store_dword(engine))
continue;
+ intel_engine_pm_get(engine);
+
for (n = 0; n < NUM_TIMELINES; n++) {
struct intel_timeline *tl;
struct i915_request *rq;
@@ -530,22 +528,26 @@ static int live_hwsp_engine(void *arg)
tl = checked_intel_timeline_create(i915);
if (IS_ERR(tl)) {
err = PTR_ERR(tl);
- goto out;
+ break;
}
rq = tl_write(tl, engine, count);
if (IS_ERR(rq)) {
intel_timeline_put(tl);
err = PTR_ERR(rq);
- goto out;
+ break;
}
timelines[count++] = tl;
+ i915_request_put(rq);
This was a leak until now?
}
+
+ intel_engine_pm_put(engine);
+ if (err)
+ break;
}
-out:
- if (igt_flush_test(i915, I915_WAIT_LOCKED))
+ if (igt_flush_test(i915))
err = -EIO;
for (n = 0; n < count; n++) {
@@ -559,11 +561,7 @@ static int live_hwsp_engine(void *arg)
intel_timeline_put(tl);
}
- intel_runtime_pm_put(&i915->runtime_pm, wakeref);
- mutex_unlock(&i915->drm.struct_mutex);
-
kvfree(timelines);
-
return err;
#undef NUM_TIMELINES
}
@@ -575,7 +573,6 @@ static int live_hwsp_alternate(void *arg)
struct intel_timeline **timelines;
struct intel_engine_cs *engine;
enum intel_engine_id id;
- intel_wakeref_t wakeref;
unsigned long count, n;
int err = 0;
@@ -591,9 +588,6 @@ static int live_hwsp_alternate(void *arg)
if (!timelines)
return -ENOMEM;
- mutex_lock(&i915->drm.struct_mutex);
- wakeref = intel_runtime_pm_get(&i915->runtime_pm);
-
count = 0;
for (n = 0; n < NUM_TIMELINES; n++) {
for_each_engine(engine, i915, id) {
@@ -605,11 +599,14 @@ static int live_hwsp_alternate(void *arg)
tl = checked_intel_timeline_create(i915);
if (IS_ERR(tl)) {
+ intel_engine_pm_put(engine);
err = PTR_ERR(tl);
goto out;
}
+ intel_engine_pm_get(engine);
rq = tl_write(tl, engine, count);
+ intel_engine_pm_put(engine);
if (IS_ERR(rq)) {
intel_timeline_put(tl);
err = PTR_ERR(rq);
@@ -617,11 +614,12 @@ static int live_hwsp_alternate(void *arg)
}
timelines[count++] = tl;
+ i915_request_put(rq);
And this.
}
}
out:
- if (igt_flush_test(i915, I915_WAIT_LOCKED))
+ if (igt_flush_test(i915))
err = -EIO;
for (n = 0; n < count; n++) {
@@ -635,11 +633,7 @@ static int live_hwsp_alternate(void *arg)
intel_timeline_put(tl);
}
- intel_runtime_pm_put(&i915->runtime_pm, wakeref);
- mutex_unlock(&i915->drm.struct_mutex);
-
kvfree(timelines);
-
return err;
#undef NUM_TIMELINES
}
@@ -650,7 +644,6 @@ static int live_hwsp_wrap(void *arg)
struct intel_engine_cs *engine;
struct intel_timeline *tl;
enum intel_engine_id id;
- intel_wakeref_t wakeref;
int err = 0;
/*
@@ -658,14 +651,10 @@ static int live_hwsp_wrap(void *arg)
* foreign GPU references.
*/
- mutex_lock(&i915->drm.struct_mutex);
- wakeref = intel_runtime_pm_get(&i915->runtime_pm);
-
tl = intel_timeline_create(&i915->gt, NULL);
- if (IS_ERR(tl)) {
- err = PTR_ERR(tl);
- goto out_rpm;
- }
+ if (IS_ERR(tl))
+ return PTR_ERR(tl);
+
if (!tl->has_initial_breadcrumb || !tl->hwsp_cacheline)
goto out_free;
@@ -681,7 +670,9 @@ static int live_hwsp_wrap(void *arg)
if (!intel_engine_can_store_dword(engine))
continue;
+ intel_engine_pm_get(engine);
rq = i915_request_create(engine->kernel_context);
+ intel_engine_pm_put(engine);
if (IS_ERR(rq)) {
err = PTR_ERR(rq);
goto out;
@@ -747,16 +738,12 @@ static int live_hwsp_wrap(void *arg)
}
No i915_request_put in this one and I can't see why it would be different.
out:
- if (igt_flush_test(i915, I915_WAIT_LOCKED))
+ if (igt_flush_test(i915))
err = -EIO;
intel_timeline_unpin(tl);
out_free:
intel_timeline_put(tl);
-out_rpm:
- intel_runtime_pm_put(&i915->runtime_pm, wakeref);
- mutex_unlock(&i915->drm.struct_mutex);
-
return err;
}
@@ -765,7 +752,6 @@ static int live_hwsp_recycle(void *arg)
struct drm_i915_private *i915 = arg;
struct intel_engine_cs *engine;
enum intel_engine_id id;
- intel_wakeref_t wakeref;
unsigned long count;
int err = 0;
@@ -775,9 +761,6 @@ static int live_hwsp_recycle(void *arg)
* want to confuse ourselves or the GPU.
*/
- mutex_lock(&i915->drm.struct_mutex);
- wakeref = intel_runtime_pm_get(&i915->runtime_pm);
-
count = 0;
for_each_engine(engine, i915, id) {
IGT_TIMEOUT(end_time);
@@ -785,6 +768,8 @@ static int live_hwsp_recycle(void *arg)
if (!intel_engine_can_store_dword(engine))
continue;
+ intel_engine_pm_get(engine);
+
do {
struct intel_timeline *tl;
struct i915_request *rq;
@@ -792,21 +777,22 @@ static int live_hwsp_recycle(void *arg)
tl = checked_intel_timeline_create(i915);
if (IS_ERR(tl)) {
err = PTR_ERR(tl);
- goto out;
+ break;
}
rq = tl_write(tl, engine, count);
if (IS_ERR(rq)) {
intel_timeline_put(tl);
err = PTR_ERR(rq);
- goto out;
+ break;
}
if (i915_request_wait(rq, 0, HZ / 5) < 0) {
pr_err("Wait for timeline writes timed out!\n");
+ i915_request_put(rq);
intel_timeline_put(tl);
err = -EIO;
- goto out;
+ break;
}
if (*tl->hwsp_seqno != count) {
@@ -815,17 +801,18 @@ static int live_hwsp_recycle(void *arg)
err = -EINVAL;
}
+ i915_request_put(rq);
intel_timeline_put(tl);
count++;
if (err)
- goto out;
+ break;
} while (!__igt_timeout(end_time, NULL));
- }
-out:
- intel_runtime_pm_put(&i915->runtime_pm, wakeref);
- mutex_unlock(&i915->drm.struct_mutex);
+ intel_engine_pm_put(engine);
+ if (err)
+ break;
+ }
return err;
}
diff --git a/drivers/gpu/drm/i915/gt/selftest_workarounds.c b/drivers/gpu/drm/i915/gt/selftest_workarounds.c
index 999a98f00494..06351fefbbf3 100644
--- a/drivers/gpu/drm/i915/gt/selftest_workarounds.c
+++ b/drivers/gpu/drm/i915/gt/selftest_workarounds.c
@@ -676,7 +676,7 @@ static int check_dirty_whitelist(struct i915_gem_context *ctx,
break;
}
- if (igt_flush_test(ctx->i915, I915_WAIT_LOCKED))
+ if (igt_flush_test(ctx->i915))
err = -EIO;
out_batch:
i915_vma_unpin_and_release(&batch, 0);
@@ -1090,7 +1090,7 @@ static int live_isolated_whitelist(void *arg)
kernel_context_close(client[i].ctx);
}
- if (igt_flush_test(i915, I915_WAIT_LOCKED))
+ if (igt_flush_test(i915))
err = -EIO;
return err;
@@ -1248,7 +1248,7 @@ live_engine_reset_workarounds(void *arg)
igt_global_reset_unlock(&i915->gt);
kernel_context_close(ctx);
- igt_flush_test(i915, I915_WAIT_LOCKED);
+ igt_flush_test(i915);
return ret;
}
diff --git a/drivers/gpu/drm/i915/i915_debugfs.c b/drivers/gpu/drm/i915/i915_debugfs.c
index 30b0b592e20d..55f0fc03aa3e 100644
--- a/drivers/gpu/drm/i915/i915_debugfs.c
+++ b/drivers/gpu/drm/i915/i915_debugfs.c
@@ -3601,6 +3601,7 @@ static int
i915_drop_caches_set(void *data, u64 val)
{
struct drm_i915_private *i915 = data;
+ int ret;
DRM_DEBUG("Dropping caches: 0x%08llx [0x%08llx]\n",
val, val & DROP_ALL);
@@ -3610,40 +3611,21 @@ i915_drop_caches_set(void *data, u64 val)
I915_IDLE_ENGINES_TIMEOUT))
intel_gt_set_wedged(&i915->gt);
- /* No need to check and wait for gpu resets, only libdrm auto-restarts
- * on ioctls on -EAGAIN. */
- if (val & (DROP_ACTIVE | DROP_IDLE | DROP_RETIRE | DROP_RESET_SEQNO)) {
- int ret;
+ if (val & DROP_RETIRE)
+ i915_retire_requests(i915);
- ret = mutex_lock_interruptible(&i915->drm.struct_mutex);
+ if (val & (DROP_IDLE | DROP_ACTIVE)) {
+ ret = i915_gem_wait_for_idle(i915,
+ I915_WAIT_INTERRUPTIBLE,
+ MAX_SCHEDULE_TIMEOUT);
if (ret)
return ret;
+ }
- /*
- * To finish the flush of the idle_worker, we must complete
- * the switch-to-kernel-context, which requires a double
- * pass through wait_for_idle: first queues the switch,
- * second waits for the switch.
- */
- if (ret == 0 && val & (DROP_IDLE | DROP_ACTIVE))
- ret = i915_gem_wait_for_idle(i915,
- I915_WAIT_INTERRUPTIBLE |
- I915_WAIT_LOCKED,
- MAX_SCHEDULE_TIMEOUT);
-
- if (ret == 0 && val & DROP_IDLE)
- ret = i915_gem_wait_for_idle(i915,
- I915_WAIT_INTERRUPTIBLE |
- I915_WAIT_LOCKED,
- MAX_SCHEDULE_TIMEOUT);
-
- if (val & DROP_RETIRE)
- i915_retire_requests(i915);
-
- mutex_unlock(&i915->drm.struct_mutex);
-
- if (ret == 0 && val & DROP_IDLE)
- ret = intel_gt_pm_wait_for_idle(&i915->gt);
+ if (val & DROP_IDLE) {
+ ret = intel_gt_pm_wait_for_idle(&i915->gt);
+ if (ret)
+ return ret;
}
if (val & DROP_RESET_ACTIVE && intel_gt_terminally_wedged(&i915->gt))
diff --git a/drivers/gpu/drm/i915/i915_gem.c b/drivers/gpu/drm/i915/i915_gem.c
index 1aadab1cdd24..225fd22af858 100644
--- a/drivers/gpu/drm/i915/i915_gem.c
+++ b/drivers/gpu/drm/i915/i915_gem.c
@@ -951,19 +951,16 @@ int i915_gem_wait_for_idle(struct drm_i915_private *i915,
if (!intel_gt_pm_is_awake(&i915->gt))
return 0;
- GEM_TRACE("flags=%x (%s), timeout=%ld%s\n",
- flags, flags & I915_WAIT_LOCKED ? "locked" : "unlocked",
- timeout, timeout == MAX_SCHEDULE_TIMEOUT ? " (forever)" : "");
-
- timeout = wait_for_timelines(i915, flags, timeout);
- if (timeout < 0)
- return timeout;
+ do {
+ timeout = wait_for_timelines(i915, flags, timeout);
+ if (timeout < 0)
+ return timeout;
- if (flags & I915_WAIT_LOCKED) {
- lockdep_assert_held(&i915->drm.struct_mutex);
+ cond_resched();
+ if (signal_pending(current))
+ return -EINTR;
- i915_retire_requests(i915);
- }
+ } while (i915_retire_requests(i915));
return 0;
}
diff --git a/drivers/gpu/drm/i915/i915_request.h b/drivers/gpu/drm/i915/i915_request.h
index 3251d2bdbeea..57a2193c64d1 100644
--- a/drivers/gpu/drm/i915/i915_request.h
+++ b/drivers/gpu/drm/i915/i915_request.h
@@ -308,10 +308,9 @@ long i915_request_wait(struct i915_request *rq,
long timeout)
__attribute__((nonnull(1)));
#define I915_WAIT_INTERRUPTIBLE BIT(0)
-#define I915_WAIT_LOCKED BIT(1) /* struct_mutex held, handle GPU reset */
-#define I915_WAIT_PRIORITY BIT(2) /* small priority bump for the request */
-#define I915_WAIT_ALL BIT(3) /* used by i915_gem_object_wait() */
-#define I915_WAIT_FOR_IDLE_BOOST BIT(4)
+#define I915_WAIT_PRIORITY BIT(1) /* small priority bump for the request */
+#define I915_WAIT_ALL BIT(2) /* used by i915_gem_object_wait() */
+#define I915_WAIT_FOR_IDLE_BOOST BIT(3)
static inline bool i915_request_signaled(const struct i915_request *rq)
{
diff --git a/drivers/gpu/drm/i915/selftests/i915_active.c b/drivers/gpu/drm/i915/selftests/i915_active.c
index af5827aac7b2..ff1337e34522 100644
--- a/drivers/gpu/drm/i915/selftests/i915_active.c
+++ b/drivers/gpu/drm/i915/selftests/i915_active.c
@@ -164,10 +164,8 @@ static int live_active_wait(void *arg)
__live_put(active);
- mutex_lock(&i915->drm.struct_mutex);
- if (igt_flush_test(i915, I915_WAIT_LOCKED))
+ if (igt_flush_test(i915))
err = -EIO;
- mutex_unlock(&i915->drm.struct_mutex);
return err;
}
@@ -185,10 +183,8 @@ static int live_active_retire(void *arg)
return PTR_ERR(active);
/* waits for & retires all requests */
- mutex_lock(&i915->drm.struct_mutex);
- if (igt_flush_test(i915, I915_WAIT_LOCKED))
+ if (igt_flush_test(i915))
err = -EIO;
- mutex_unlock(&i915->drm.struct_mutex);
if (!READ_ONCE(active->retired)) {
pr_err("i915_active not retired after flushing!\n");
diff --git a/drivers/gpu/drm/i915/selftests/i915_gem_evict.c b/drivers/gpu/drm/i915/selftests/i915_gem_evict.c
index ba6064147173..42139db0d69c 100644
--- a/drivers/gpu/drm/i915/selftests/i915_gem_evict.c
+++ b/drivers/gpu/drm/i915/selftests/i915_gem_evict.c
@@ -521,7 +521,7 @@ static int igt_evict_contexts(void *arg)
mutex_lock(&i915->ggtt.vm.mutex);
out_locked:
- if (igt_flush_test(i915, I915_WAIT_LOCKED))
+ if (igt_flush_test(i915))
err = -EIO;
while (reserved) {
struct reserved *next = reserved->next;
diff --git a/drivers/gpu/drm/i915/selftests/i915_gem_gtt.c b/drivers/gpu/drm/i915/selftests/i915_gem_gtt.c
index 4235fa401956..729a53eb6244 100644
--- a/drivers/gpu/drm/i915/selftests/i915_gem_gtt.c
+++ b/drivers/gpu/drm/i915/selftests/i915_gem_gtt.c
@@ -1709,12 +1709,8 @@ int i915_gem_gtt_mock_selftests(void)
err = i915_subtests(tests, ggtt);
- mutex_lock(&i915->drm.struct_mutex);
mock_device_flush(i915);
- mutex_unlock(&i915->drm.struct_mutex);
-
i915_gem_drain_freed_objects(i915);
-
mock_fini_ggtt(ggtt);
kfree(ggtt);
out_put:
diff --git a/drivers/gpu/drm/i915/selftests/i915_request.c b/drivers/gpu/drm/i915/selftests/i915_request.c
index b3688543ed7d..d046395845da 100644
--- a/drivers/gpu/drm/i915/selftests/i915_request.c
+++ b/drivers/gpu/drm/i915/selftests/i915_request.c
@@ -41,21 +41,16 @@ static int igt_add_request(void *arg)
{
struct drm_i915_private *i915 = arg;
struct i915_request *request;
- int err = -ENOMEM;
/* Basic preliminary test to create a request and let it loose! */
- mutex_lock(&i915->drm.struct_mutex);
request = mock_request(i915->engine[RCS0]->kernel_context, HZ / 10);
if (!request)
- goto out_unlock;
+ return -ENOMEM;
i915_request_add(request);
- err = 0;
-out_unlock:
- mutex_unlock(&i915->drm.struct_mutex);
- return err;
+ return 0;
}
static int igt_wait_request(void *arg)
@@ -67,12 +62,10 @@ static int igt_wait_request(void *arg)
/* Submit a request, then wait upon it */
- mutex_lock(&i915->drm.struct_mutex);
request = mock_request(i915->engine[RCS0]->kernel_context, T);
- if (!request) {
- err = -ENOMEM;
- goto out_unlock;
- }
+ if (!request)
+ return -ENOMEM;
+
i915_request_get(request);
if (i915_request_wait(request, 0, 0) != -ETIME) {
@@ -125,9 +118,7 @@ static int igt_wait_request(void *arg)
err = 0;
out_request:
i915_request_put(request);
-out_unlock:
mock_device_flush(i915);
- mutex_unlock(&i915->drm.struct_mutex);
return err;
}
@@ -140,52 +131,45 @@ static int igt_fence_wait(void *arg)
/* Submit a request, treat it as a fence and wait upon it */
- mutex_lock(&i915->drm.struct_mutex);
request = mock_request(i915->engine[RCS0]->kernel_context, T);
- if (!request) {
- err = -ENOMEM;
- goto out_locked;
- }
+ if (!request)
+ return -ENOMEM;
if (dma_fence_wait_timeout(&request->fence, false, T) != -ETIME) {
pr_err("fence wait success before submit (expected timeout)!\n");
- goto out_locked;
+ goto out;
}
i915_request_add(request);
- mutex_unlock(&i915->drm.struct_mutex);
if (dma_fence_is_signaled(&request->fence)) {
pr_err("fence signaled immediately!\n");
- goto out_device;
+ goto out;
}
if (dma_fence_wait_timeout(&request->fence, false, T / 2) != -ETIME) {
pr_err("fence wait success after submit (expected timeout)!\n");
- goto out_device;
+ goto out;
}
if (dma_fence_wait_timeout(&request->fence, false, T) <= 0) {
pr_err("fence wait timed out (expected success)!\n");
- goto out_device;
+ goto out;
}
if (!dma_fence_is_signaled(&request->fence)) {
pr_err("fence unsignaled after waiting!\n");
- goto out_device;
+ goto out;
}
if (dma_fence_wait_timeout(&request->fence, false, T) <= 0) {
pr_err("fence wait timed out when complete (expected success)!\n");
- goto out_device;
+ goto out;
}
err = 0;
-out_device:
- mutex_lock(&i915->drm.struct_mutex);
-out_locked:
+out:
mock_device_flush(i915);
- mutex_unlock(&i915->drm.struct_mutex);
return err;
}
@@ -199,6 +183,8 @@ static int igt_request_rewind(void *arg)
mutex_lock(&i915->drm.struct_mutex);
ctx[0] = mock_context(i915, "A");
+ mutex_unlock(&i915->drm.struct_mutex);
+
ce = i915_gem_context_get_engine(ctx[0], RCS0);
GEM_BUG_ON(IS_ERR(ce));
request = mock_request(ce, 2 * HZ);
@@ -211,7 +197,10 @@ static int igt_request_rewind(void *arg)
i915_request_get(request);
i915_request_add(request);
+ mutex_lock(&i915->drm.struct_mutex);
ctx[1] = mock_context(i915, "B");
+ mutex_unlock(&i915->drm.struct_mutex);
+
ce = i915_gem_context_get_engine(ctx[1], RCS0);
GEM_BUG_ON(IS_ERR(ce));
vip = mock_request(ce, 0);
@@ -233,7 +222,6 @@ static int igt_request_rewind(void *arg)
request->engine->submit_request(request);
rcu_read_unlock();
- mutex_unlock(&i915->drm.struct_mutex);
if (i915_request_wait(vip, 0, HZ) == -ETIME) {
pr_err("timed out waiting for high priority request\n");
@@ -248,14 +236,12 @@ static int igt_request_rewind(void *arg)
err = 0;
err:
i915_request_put(vip);
- mutex_lock(&i915->drm.struct_mutex);
err_context_1:
mock_context_close(ctx[1]);
i915_request_put(request);
err_context_0:
mock_context_close(ctx[0]);
mock_device_flush(i915);
- mutex_unlock(&i915->drm.struct_mutex);
return err;
}
@@ -282,7 +268,6 @@ __live_request_alloc(struct intel_context *ce)
static int __igt_breadcrumbs_smoketest(void *arg)
{
struct smoketest *t = arg;
- struct mutex * const BKL = &t->engine->i915->drm.struct_mutex;
const unsigned int max_batch = min(t->ncontexts, t->max_batch) - 1;
const unsigned int total = 4 * t->ncontexts + 1;
unsigned int num_waits = 0, num_fences = 0;
@@ -337,14 +322,11 @@ static int __igt_breadcrumbs_smoketest(void *arg)
struct i915_request *rq;
struct intel_context *ce;
- mutex_lock(BKL);
-
ce = i915_gem_context_get_engine(ctx, t->engine->legacy_idx);
GEM_BUG_ON(IS_ERR(ce));
rq = t->request_alloc(ce);
intel_context_put(ce);
if (IS_ERR(rq)) {
- mutex_unlock(BKL);
err = PTR_ERR(rq);
count = n;
break;
@@ -357,8 +339,6 @@ static int __igt_breadcrumbs_smoketest(void *arg)
requests[n] = i915_request_get(rq);
i915_request_add(rq);
- mutex_unlock(BKL);
-
if (err >= 0)
err = i915_sw_fence_await_dma_fence(wait,
&rq->fence,
@@ -457,15 +437,15 @@ static int mock_breadcrumbs_smoketest(void *arg)
goto out_threads;
}
- mutex_lock(&t.engine->i915->drm.struct_mutex);
for (n = 0; n < t.ncontexts; n++) {
+ mutex_lock(&t.engine->i915->drm.struct_mutex);
t.contexts[n] = mock_context(t.engine->i915, "mock");
+ mutex_unlock(&t.engine->i915->drm.struct_mutex);
if (!t.contexts[n]) {
ret = -ENOMEM;
goto out_contexts;
}
}
- mutex_unlock(&t.engine->i915->drm.struct_mutex);
for (n = 0; n < ncpus; n++) {
threads[n] = kthread_run(__igt_breadcrumbs_smoketest,
@@ -495,18 +475,15 @@ static int mock_breadcrumbs_smoketest(void *arg)
atomic_long_read(&t.num_fences),
ncpus);
- mutex_lock(&t.engine->i915->drm.struct_mutex);
out_contexts:
for (n = 0; n < t.ncontexts; n++) {
if (!t.contexts[n])
break;
mock_context_close(t.contexts[n]);
}
- mutex_unlock(&t.engine->i915->drm.struct_mutex);
kfree(t.contexts);
out_threads:
kfree(threads);
-
return ret;
}
@@ -539,7 +516,6 @@ static int live_nop_request(void *arg)
{
struct drm_i915_private *i915 = arg;
struct intel_engine_cs *engine;
- intel_wakeref_t wakeref;
struct igt_live_test t;
unsigned int id;
int err = -ENODEV;
@@ -549,9 +525,6 @@ static int live_nop_request(void *arg)
* the overhead of submitting requests to the hardware.
*/
- mutex_lock(&i915->drm.struct_mutex);
- wakeref = intel_runtime_pm_get(&i915->runtime_pm);
-
for_each_engine(engine, i915, id) {
struct i915_request *request = NULL;
unsigned long n, prime;
@@ -560,17 +533,15 @@ static int live_nop_request(void *arg)
err = igt_live_test_begin(&t, i915, __func__, engine->name);
if (err)
- goto out_unlock;
+ return err;
for_each_prime_number_from(prime, 1, 8192) {
times[1] = ktime_get_raw();
for (n = 0; n < prime; n++) {
request = i915_request_create(engine->kernel_context);
- if (IS_ERR(request)) {
- err = PTR_ERR(request);
- goto out_unlock;
- }
+ if (IS_ERR(request))
+ return PTR_ERR(request);
/* This space is left intentionally blank.
*
@@ -599,7 +570,7 @@ static int live_nop_request(void *arg)
err = igt_live_test_end(&t);
if (err)
- goto out_unlock;
+ return err;
pr_info("Request latencies on %s: 1 = %lluns, %lu = %lluns\n",
engine->name,
@@ -607,9 +578,6 @@ static int live_nop_request(void *arg)
prime, div64_u64(ktime_to_ns(times[1]), prime));
}
-out_unlock:
- intel_runtime_pm_put(&i915->runtime_pm, wakeref);
- mutex_unlock(&i915->drm.struct_mutex);
return err;
}
@@ -681,7 +649,6 @@ static int live_empty_request(void *arg)
{
struct drm_i915_private *i915 = arg;
struct intel_engine_cs *engine;
- intel_wakeref_t wakeref;
struct igt_live_test t;
struct i915_vma *batch;
unsigned int id;
@@ -692,14 +659,9 @@ static int live_empty_request(void *arg)
* the overhead of submitting requests to the hardware.
*/
- mutex_lock(&i915->drm.struct_mutex);
- wakeref = intel_runtime_pm_get(&i915->runtime_pm);
-
batch = empty_batch(i915);
- if (IS_ERR(batch)) {
- err = PTR_ERR(batch);
- goto out_unlock;
- }
+ if (IS_ERR(batch))
+ return PTR_ERR(batch);
for_each_engine(engine, i915, id) {
IGT_TIMEOUT(end_time);
@@ -752,9 +714,6 @@ static int live_empty_request(void *arg)
out_batch:
i915_vma_unpin(batch);
i915_vma_put(batch);
-out_unlock:
- intel_runtime_pm_put(&i915->runtime_pm, wakeref);
- mutex_unlock(&i915->drm.struct_mutex);
return err;
}
@@ -834,7 +793,6 @@ static int live_all_engines(void *arg)
struct drm_i915_private *i915 = arg;
struct intel_engine_cs *engine;
struct i915_request *request[I915_NUM_ENGINES];
- intel_wakeref_t wakeref;
struct igt_live_test t;
struct i915_vma *batch;
unsigned int id;
@@ -845,18 +803,15 @@ static int live_all_engines(void *arg)
* block doing so, and that they don't complete too soon.
*/
- mutex_lock(&i915->drm.struct_mutex);
- wakeref = intel_runtime_pm_get(&i915->runtime_pm);
-
err = igt_live_test_begin(&t, i915, __func__, "");
if (err)
- goto out_unlock;
+ return err;
batch = recursive_batch(i915);
if (IS_ERR(batch)) {
err = PTR_ERR(batch);
pr_err("%s: Unable to create batch, err=%d\n", __func__, err);
- goto out_unlock;
+ return err;
}
for_each_engine(engine, i915, id) {
@@ -926,9 +881,6 @@ static int live_all_engines(void *arg)
i915_request_put(request[id]);
i915_vma_unpin(batch);
i915_vma_put(batch);
-out_unlock:
- intel_runtime_pm_put(&i915->runtime_pm, wakeref);
- mutex_unlock(&i915->drm.struct_mutex);
return err;
}
@@ -938,7 +890,6 @@ static int live_sequential_engines(void *arg)
struct i915_request *request[I915_NUM_ENGINES] = {};
struct i915_request *prev = NULL;
struct intel_engine_cs *engine;
- intel_wakeref_t wakeref;
struct igt_live_test t;
unsigned int id;
int err;
@@ -949,12 +900,9 @@ static int live_sequential_engines(void *arg)
* they are running on independent engines.
*/
- mutex_lock(&i915->drm.struct_mutex);
- wakeref = intel_runtime_pm_get(&i915->runtime_pm);
-
err = igt_live_test_begin(&t, i915, __func__, "");
if (err)
- goto out_unlock;
+ return err;
for_each_engine(engine, i915, id) {
struct i915_vma *batch;
@@ -964,7 +912,7 @@ static int live_sequential_engines(void *arg)
err = PTR_ERR(batch);
pr_err("%s: Unable to create batch for %s, err=%d\n",
__func__, engine->name, err);
- goto out_unlock;
+ return err;
}
request[id] = i915_request_create(engine->kernel_context);
@@ -1056,9 +1004,6 @@ static int live_sequential_engines(void *arg)
i915_vma_put(request[id]->batch);
i915_request_put(request[id]);
}
-out_unlock:
- intel_runtime_pm_put(&i915->runtime_pm, wakeref);
- mutex_unlock(&i915->drm.struct_mutex);
return err;
}
@@ -1149,9 +1094,10 @@ static int live_breadcrumbs_smoketest(void *arg)
goto out_threads;
}
- mutex_lock(&i915->drm.struct_mutex);
for (n = 0; n < t[0].ncontexts; n++) {
+ mutex_lock(&i915->drm.struct_mutex);
t[0].contexts[n] = live_context(i915, file);
+ mutex_unlock(&i915->drm.struct_mutex);
if (!t[0].contexts[n]) {
ret = -ENOMEM;
goto out_contexts;
@@ -1168,7 +1114,6 @@ static int live_breadcrumbs_smoketest(void *arg)
t[id].max_batch = max_batches(t[0].contexts[0], engine);
if (t[id].max_batch < 0) {
ret = t[id].max_batch;
- mutex_unlock(&i915->drm.struct_mutex);
goto out_flush;
}
/* One ring interleaved between requests from all cpus */
@@ -1183,7 +1128,6 @@ static int live_breadcrumbs_smoketest(void *arg)
&t[id], "igt/%d.%d", id, n);
if (IS_ERR(tsk)) {
ret = PTR_ERR(tsk);
- mutex_unlock(&i915->drm.struct_mutex);
goto out_flush;
}
@@ -1191,7 +1135,6 @@ static int live_breadcrumbs_smoketest(void *arg)
threads[id * ncpus + n] = tsk;
}
}
- mutex_unlock(&i915->drm.struct_mutex);
msleep(jiffies_to_msecs(i915_selftest.timeout_jiffies));
@@ -1219,10 +1162,8 @@ static int live_breadcrumbs_smoketest(void *arg)
pr_info("Completed %lu waits for %lu fences across %d engines and %d cpus\n",
num_waits, num_fences, RUNTIME_INFO(i915)->num_engines, ncpus);
- mutex_lock(&i915->drm.struct_mutex);
ret = igt_live_test_end(&live) ?: ret;
out_contexts:
- mutex_unlock(&i915->drm.struct_mutex);
kfree(t[0].contexts);
out_threads:
kfree(threads);
diff --git a/drivers/gpu/drm/i915/selftests/i915_selftest.c b/drivers/gpu/drm/i915/selftests/i915_selftest.c
index 438ea0eaa416..825a8286cbe8 100644
--- a/drivers/gpu/drm/i915/selftests/i915_selftest.c
+++ b/drivers/gpu/drm/i915/selftests/i915_selftest.c
@@ -263,10 +263,8 @@ int __i915_live_teardown(int err, void *data)
{
struct drm_i915_private *i915 = data;
- mutex_lock(&i915->drm.struct_mutex);
- if (igt_flush_test(i915, I915_WAIT_LOCKED))
+ if (igt_flush_test(i915))
err = -EIO;
- mutex_unlock(&i915->drm.struct_mutex);
i915_gem_drain_freed_objects(i915);
@@ -284,10 +282,8 @@ int __intel_gt_live_teardown(int err, void *data)
{
struct intel_gt *gt = data;
- mutex_lock(>->i915->drm.struct_mutex);
- if (igt_flush_test(gt->i915, I915_WAIT_LOCKED))
+ if (igt_flush_test(gt->i915))
err = -EIO;
- mutex_unlock(>->i915->drm.struct_mutex);
i915_gem_drain_freed_objects(gt->i915);
diff --git a/drivers/gpu/drm/i915/selftests/i915_vma.c b/drivers/gpu/drm/i915/selftests/i915_vma.c
index e0ca12c17a7f..6c1705058b93 100644
--- a/drivers/gpu/drm/i915/selftests/i915_vma.c
+++ b/drivers/gpu/drm/i915/selftests/i915_vma.c
@@ -835,12 +835,8 @@ int i915_vma_mock_selftests(void)
err = i915_subtests(tests, ggtt);
- mutex_lock(&i915->drm.struct_mutex);
mock_device_flush(i915);
- mutex_unlock(&i915->drm.struct_mutex);
-
i915_gem_drain_freed_objects(i915);
-
mock_fini_ggtt(ggtt);
kfree(ggtt);
out_put:
diff --git a/drivers/gpu/drm/i915/selftests/igt_flush_test.c b/drivers/gpu/drm/i915/selftests/igt_flush_test.c
index d3b5eb402d33..2a5fbe46ea9f 100644
--- a/drivers/gpu/drm/i915/selftests/igt_flush_test.c
+++ b/drivers/gpu/drm/i915/selftests/igt_flush_test.c
@@ -12,31 +12,25 @@
#include "igt_flush_test.h"
-int igt_flush_test(struct drm_i915_private *i915, unsigned int flags)
+int igt_flush_test(struct drm_i915_private *i915)
{
int ret = intel_gt_is_wedged(&i915->gt) ? -EIO : 0;
- int repeat = !!(flags & I915_WAIT_LOCKED);
cond_resched();
- do {
- if (i915_gem_wait_for_idle(i915, flags, HZ / 5) == -ETIME) {
- pr_err("%pS timed out, cancelling all further testing.\n",
- __builtin_return_address(0));
+ i915_retire_requests(i915);
Do you need this one or it would be better without, for clarity, given
there is one at the end? i915_gem_wait_for_idle will retire all it can.
+ if (i915_gem_wait_for_idle(i915, 0, HZ / 5) == -ETIME) {
+ pr_err("%pS timed out, cancelling all further testing.\n",
+ __builtin_return_address(0));
- GEM_TRACE("%pS timed out.\n",
- __builtin_return_address(0));
- GEM_TRACE_DUMP();
+ GEM_TRACE("%pS timed out.\n",
+ __builtin_return_address(0));
+ GEM_TRACE_DUMP();
- intel_gt_set_wedged(&i915->gt);
- repeat = 0;
- ret = -EIO;
- }
-
- /* Ensure we also flush after wedging. */
- if (flags & I915_WAIT_LOCKED)
- i915_retire_requests(i915);
- } while (repeat--);
+ intel_gt_set_wedged(&i915->gt);
+ ret = -EIO;
+ }
+ i915_retire_requests(i915);
return ret;
}
diff --git a/drivers/gpu/drm/i915/selftests/igt_flush_test.h b/drivers/gpu/drm/i915/selftests/igt_flush_test.h
index 63e009927c43..7541fa74e641 100644
--- a/drivers/gpu/drm/i915/selftests/igt_flush_test.h
+++ b/drivers/gpu/drm/i915/selftests/igt_flush_test.h
@@ -9,6 +9,6 @@
struct drm_i915_private;
-int igt_flush_test(struct drm_i915_private *i915, unsigned int flags);
+int igt_flush_test(struct drm_i915_private *i915);
#endif /* IGT_FLUSH_TEST_H */
diff --git a/drivers/gpu/drm/i915/selftests/igt_live_test.c b/drivers/gpu/drm/i915/selftests/igt_live_test.c
index 3e902761cd16..04a6f88fdf64 100644
--- a/drivers/gpu/drm/i915/selftests/igt_live_test.c
+++ b/drivers/gpu/drm/i915/selftests/igt_live_test.c
@@ -19,15 +19,12 @@ int igt_live_test_begin(struct igt_live_test *t,
enum intel_engine_id id;
int err;
- lockdep_assert_held(&i915->drm.struct_mutex);
-
t->i915 = i915;
t->func = func;
t->name = name;
err = i915_gem_wait_for_idle(i915,
- I915_WAIT_INTERRUPTIBLE |
- I915_WAIT_LOCKED,
+ I915_WAIT_INTERRUPTIBLE,
MAX_SCHEDULE_TIMEOUT);
if (err) {
pr_err("%s(%s): failed to idle before, with err=%d!",
@@ -50,9 +47,7 @@ int igt_live_test_end(struct igt_live_test *t)
struct intel_engine_cs *engine;
enum intel_engine_id id;
- lockdep_assert_held(&i915->drm.struct_mutex);
-
- if (igt_flush_test(i915, I915_WAIT_LOCKED))
+ if (igt_flush_test(i915))
return -EIO;
if (t->reset_global != i915_reset_count(&i915->gpu_error)) {
diff --git a/drivers/gpu/drm/i915/selftests/mock_gem_device.c b/drivers/gpu/drm/i915/selftests/mock_gem_device.c
index 01a89c071bf5..1956006a0d5b 100644
--- a/drivers/gpu/drm/i915/selftests/mock_gem_device.c
+++ b/drivers/gpu/drm/i915/selftests/mock_gem_device.c
@@ -41,8 +41,6 @@ void mock_device_flush(struct drm_i915_private *i915)
struct intel_engine_cs *engine;
enum intel_engine_id id;
- lockdep_assert_held(&i915->drm.struct_mutex);
-
do {
for_each_engine(engine, i915, id)
mock_engine_flush(engine);
@@ -55,9 +53,7 @@ static void mock_device_release(struct drm_device *dev)
struct intel_engine_cs *engine;
enum intel_engine_id id;
- mutex_lock(&i915->drm.struct_mutex);
mock_device_flush(i915);
- mutex_unlock(&i915->drm.struct_mutex);
flush_work(&i915->gem.idle_work);
i915_gem_drain_workqueue(i915);
Essentially looks fine. Provisional, meaning keep it if you do some
small tweaks:
Reviewed-by: Tvrtko Ursulin <tvrtko.ursulin@xxxxxxxxx>
Regards,
Tvrtko
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