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drm/i915: Expand bool interruptible to pass flags to i915_wait_request()

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We need finer control over wakeup behaviour during i915_wait_request(),
so expand the current bool interruptible to a bitmask.

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Reviewed-by: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/20160909131201.16673-9-chris@chris-wilson.co.uk
This commit is contained in:
Chris Wilson 2016-09-09 14:11:49 +01:00
parent 2c7487a524
commit ea746f3659
12 changed files with 37 additions and 32 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
drivers/gpu/drm/i915/i915_debugfs.c
View File

@ -4794,7 +4794,7 @@ i915_drop_caches_set(void *data, u64 val)
return ret;
if (val & DROP_ACTIVE) {
ret = i915_gem_wait_for_idle(dev_priv, true);
ret = i915_gem_wait_for_idle(dev_priv, I915_WAIT_INTERRUPTIBLE);
if (ret)
goto unlock;
}

2
drivers/gpu/drm/i915/i915_drv.h
View File

@ -3270,7 +3270,7 @@ int __must_check i915_gem_init_hw(struct drm_device *dev);
void i915_gem_init_swizzling(struct drm_device *dev);
void i915_gem_cleanup_engines(struct drm_device *dev);
int __must_check i915_gem_wait_for_idle(struct drm_i915_private *dev_priv,
bool interruptible);
unsigned int flags);
int __must_check i915_gem_suspend(struct drm_device *dev);
void i915_gem_resume(struct drm_device *dev);
int i915_gem_fault(struct vm_area_struct *vma, struct vm_fault *vmf);

16
drivers/gpu/drm/i915/i915_gem.c
View File

@ -386,7 +386,8 @@ __unsafe_wait_rendering(struct drm_i915_gem_object *obj,
int ret;
ret = i915_gem_active_wait_unlocked(&active[idx],
true, NULL, rps);
I915_WAIT_INTERRUPTIBLE,
NULL, rps);
if (ret)
return ret;
}
@ -2026,7 +2027,7 @@ static int i915_gem_object_create_mmap_offset(struct drm_i915_gem_object *obj)
* to claim that space for ourselves, we need to take the big
* struct_mutex to free the requests+objects and allocate our slot.
*/
err = i915_gem_wait_for_idle(dev_priv, true);
err = i915_gem_wait_for_idle(dev_priv, I915_WAIT_INTERRUPTIBLE);
if (err)
return err;
@ -2779,7 +2780,8 @@ i915_gem_wait_ioctl(struct drm_device *dev, void *data, struct drm_file *file)
active = __I915_BO_ACTIVE(obj);
for_each_active(active, idx) {
s64 *timeout = args->timeout_ns >= 0 ? &args->timeout_ns : NULL;
ret = i915_gem_active_wait_unlocked(&obj->last_read[idx], true,
ret = i915_gem_active_wait_unlocked(&obj->last_read[idx],
I915_WAIT_INTERRUPTIBLE,
timeout, rps);
if (ret)
break;
@ -2982,7 +2984,7 @@ destroy:
}
int i915_gem_wait_for_idle(struct drm_i915_private *dev_priv,
bool interruptible)
unsigned int flags)
{
struct intel_engine_cs *engine;
int ret;
@ -2991,7 +2993,7 @@ int i915_gem_wait_for_idle(struct drm_i915_private *dev_priv,
if (engine->last_context == NULL)
continue;
ret = intel_engine_idle(engine, interruptible);
ret = intel_engine_idle(engine, flags);
if (ret)
return ret;
}
@ -3746,7 +3748,7 @@ i915_gem_ring_throttle(struct drm_device *dev, struct drm_file *file)
if (target == NULL)
return 0;
ret = i915_wait_request(target, true, NULL, NULL);
ret = i915_wait_request(target, I915_WAIT_INTERRUPTIBLE, NULL, NULL);
i915_gem_request_put(target);
return ret;
@ -4302,7 +4304,7 @@ int i915_gem_suspend(struct drm_device *dev)
if (ret)
goto err;
ret = i915_gem_wait_for_idle(dev_priv, true);
ret = i915_gem_wait_for_idle(dev_priv, I915_WAIT_INTERRUPTIBLE);
if (ret)
goto err;

4
drivers/gpu/drm/i915/i915_gem_evict.c
View File

@ -170,7 +170,7 @@ search_again:
if (ret)
return ret;
ret = i915_gem_wait_for_idle(dev_priv, true);
ret = i915_gem_wait_for_idle(dev_priv, I915_WAIT_INTERRUPTIBLE);
if (ret)
return ret;
@ -275,7 +275,7 @@ int i915_gem_evict_vm(struct i915_address_space *vm, bool do_idle)
return ret;
}
ret = i915_gem_wait_for_idle(dev_priv, true);
ret = i915_gem_wait_for_idle(dev_priv, I915_WAIT_INTERRUPTIBLE);
if (ret)
return ret;

2
drivers/gpu/drm/i915/i915_gem_gtt.c
View File

@ -2683,7 +2683,7 @@ void i915_gem_gtt_finish_object(struct drm_i915_gem_object *obj)
struct i915_ggtt *ggtt = &dev_priv->ggtt;
if (unlikely(ggtt->do_idle_maps)) {
if (i915_gem_wait_for_idle(dev_priv, false)) {
if (i915_gem_wait_for_idle(dev_priv, 0)) {
DRM_ERROR("Failed to wait for idle; VT'd may hang.\n");
/* Wait a bit, in hopes it avoids the hang */
udelay(10);

9
drivers/gpu/drm/i915/i915_gem_request.c
View File

@ -260,7 +260,7 @@ static int i915_gem_init_seqno(struct drm_i915_private *dev_priv, u32 seqno)
/* Carefully retire all requests without writing to the rings */
for_each_engine(engine, dev_priv) {
ret = intel_engine_idle(engine, true);
ret = intel_engine_idle(engine, I915_WAIT_INTERRUPTIBLE);
if (ret)
return ret;
}
@ -598,7 +598,7 @@ bool __i915_spin_request(const struct drm_i915_gem_request *req,
/**
* i915_wait_request - wait until execution of request has finished
* @req: duh!
* @interruptible: do an interruptible wait (normally yes)
* @flags: how to wait
* @timeout: in - how long to wait (NULL forever); out - how much time remaining
* @rps: client to charge for RPS boosting
*
@ -613,11 +613,12 @@ bool __i915_spin_request(const struct drm_i915_gem_request *req,
* errno with remaining time filled in timeout argument.
*/
int i915_wait_request(struct drm_i915_gem_request *req,
bool interruptible,
unsigned int flags,
s64 *timeout,
struct intel_rps_client *rps)
{
int state = interruptible ? TASK_INTERRUPTIBLE : TASK_UNINTERRUPTIBLE;
const int state = flags & I915_WAIT_INTERRUPTIBLE ?
TASK_INTERRUPTIBLE : TASK_UNINTERRUPTIBLE;
DEFINE_WAIT(reset);
struct intel_wait wait;
unsigned long timeout_remain;

13
drivers/gpu/drm/i915/i915_gem_request.h
View File

@ -218,10 +218,11 @@ struct intel_rps_client;
#define IS_RPS_USER(p) (!IS_ERR_OR_NULL(p))
int i915_wait_request(struct drm_i915_gem_request *req,
bool interruptible,
unsigned int flags,
s64 *timeout,
struct intel_rps_client *rps)
__attribute__((nonnull(1)));
#define I915_WAIT_INTERRUPTIBLE BIT(0)
static inline u32 intel_engine_get_seqno(struct intel_engine_cs *engine);
@ -575,13 +576,13 @@ i915_gem_active_wait(const struct i915_gem_active *active, struct mutex *mutex)
if (!request)
return 0;
return i915_wait_request(request, true, NULL, NULL);
return i915_wait_request(request, I915_WAIT_INTERRUPTIBLE, NULL, NULL);
}
/**
* i915_gem_active_wait_unlocked - waits until the request is completed
* @active - the active request on which to wait
* @interruptible - whether the wait can be woken by a userspace signal
* @flags - how to wait
* @timeout - how long to wait at most
* @rps - userspace client to charge for a waitboost
*
@ -602,7 +603,7 @@ i915_gem_active_wait(const struct i915_gem_active *active, struct mutex *mutex)
*/
static inline int
i915_gem_active_wait_unlocked(const struct i915_gem_active *active,
bool interruptible,
unsigned int flags,
s64 *timeout,
struct intel_rps_client *rps)
{
@ -611,7 +612,7 @@ i915_gem_active_wait_unlocked(const struct i915_gem_active *active,
request = i915_gem_active_get_unlocked(active);
if (request) {
ret = i915_wait_request(request, interruptible, timeout, rps);
ret = i915_wait_request(request, flags, timeout, rps);
i915_gem_request_put(request);
}
@ -638,7 +639,7 @@ i915_gem_active_retire(struct i915_gem_active *active,
if (!request)
return 0;
ret = i915_wait_request(request, true, NULL, NULL);
ret = i915_wait_request(request, I915_WAIT_INTERRUPTIBLE, NULL, NULL);
if (ret)
return ret;

4
drivers/gpu/drm/i915/i915_gem_shrinker.c
View File

@ -323,7 +323,7 @@ i915_gem_shrinker_lock_uninterruptible(struct drm_i915_private *dev_priv,
unsigned long timeout = jiffies + msecs_to_jiffies_timeout(timeout_ms);
do {
if (i915_gem_wait_for_idle(dev_priv, false) == 0 &&
if (i915_gem_wait_for_idle(dev_priv, 0) == 0 &&
i915_gem_shrinker_lock(&dev_priv->drm, &slu->unlock))
break;
@ -414,7 +414,7 @@ i915_gem_shrinker_vmap(struct notifier_block *nb, unsigned long event, void *ptr
return NOTIFY_DONE;
/* Force everything onto the inactive lists */
ret = i915_gem_wait_for_idle(dev_priv, false);
ret = i915_gem_wait_for_idle(dev_priv, 0);
if (ret)
goto out;

2
drivers/gpu/drm/i915/i915_gem_userptr.c
View File

@ -68,7 +68,7 @@ static void wait_rendering(struct drm_i915_gem_object *obj)
for_each_active(active, idx)
i915_gem_active_wait_unlocked(&obj->last_read[idx],
false, NULL, NULL);
0, NULL, NULL);
}
static void cancel_userptr(struct work_struct *work)

8
drivers/gpu/drm/i915/intel_display.c
View File

@ -12022,8 +12022,7 @@ static void intel_mmio_flip_work_func(struct work_struct *w)
if (work->flip_queued_req)
WARN_ON(i915_wait_request(work->flip_queued_req,
false, NULL,
NO_WAITBOOST));
0, NULL, NO_WAITBOOST));
/* For framebuffer backed by dmabuf, wait for fence */
resv = i915_gem_object_get_dmabuf_resv(obj);
@ -14071,7 +14070,8 @@ static int intel_atomic_prepare_commit(struct drm_device *dev,
continue;
ret = i915_wait_request(intel_plane_state->wait_req,
true, NULL, NULL);
I915_WAIT_INTERRUPTIBLE,
NULL, NULL);
if (ret) {
/* Any hang should be swallowed by the wait */
WARN_ON(ret == -EIO);
@ -14289,7 +14289,7 @@ static void intel_atomic_commit_tail(struct drm_atomic_state *state)
continue;
ret = i915_wait_request(intel_plane_state->wait_req,
true, NULL, NULL);
0, NULL, NULL);
/* EIO should be eaten, and we can't get interrupted in the
* worker, and blocking commits have waited already. */
WARN_ON(ret);

3
drivers/gpu/drm/i915/intel_ringbuffer.c
View File

@ -2223,7 +2223,8 @@ static int wait_for_space(struct drm_i915_gem_request *req, int bytes)
if (WARN_ON(&target->ring_link == &ring->request_list))
return -ENOSPC;
ret = i915_wait_request(target, true, NULL, NO_WAITBOOST);
ret = i915_wait_request(target, I915_WAIT_INTERRUPTIBLE,
NULL, NO_WAITBOOST);
if (ret)
return ret;

4
drivers/gpu/drm/i915/intel_ringbuffer.h
View File

@ -489,11 +489,11 @@ int intel_engine_create_scratch(struct intel_engine_cs *engine, int size);
void intel_engine_cleanup_common(struct intel_engine_cs *engine);
static inline int intel_engine_idle(struct intel_engine_cs *engine,
bool interruptible)
unsigned int flags)
{
/* Wait upon the last request to be completed */
return i915_gem_active_wait_unlocked(&engine->last_request,
interruptible, NULL, NULL);
flags, NULL, NULL);
}
int intel_init_render_ring_buffer(struct intel_engine_cs *engine);