I've figured out what was wrong with the patch. We need to reset the
"needs_reset" flag earlier, otherwise the IB test might think we are in
a lockup and aborts the reset after waiting for the minimum timeout period.
Please try the attached patch instead.
Thanks,
Christian.
Am 09.10.2013 14:04, schrieb Marek Olšák:
The ring test of the first compute ring always fails and it shouldn't
affect the GPU reset in any way.
I can't tell if the deadlock issue is fixed, because the GPU reset
usually fails with your patch. It always succeeded without your patch.
Marek
On Wed, Oct 9, 2013 at 1:09 PM, Christian König <deathsimple@xxxxxxxxxxx> wrote:
Mhm, that doesn't looks like anything related but more like the reset of the
compute ring didn't worked.
How often does that happen? And do you still get the problem where X waits
for a fence that never comes back?
Christian.
Am 09.10.2013 12:36, schrieb Marek Olšák:
I'm afraid your patch sometimes causes the GPU reset to fail, which
had never happened before IIRC.
The dmesg log from the failure is attached.
Marek
On Tue, Oct 8, 2013 at 6:21 PM, Christian König <deathsimple@xxxxxxxxxxx>
wrote:
Hi Marek,
please try the attached patch as a replacement for your signaling all
fences
patch. I'm not 100% sure if it fixes all issues, but it's at least a
start.
Thanks,
Christian.
Am 07.10.2013 13:08, schrieb Christian König:
First of all, I can't complain about the reliability of the hardware
GPU reset. It's mostly the kernel driver that happens to run into a
deadlock at the same time.
Alex and I spend quite some time on making this reliable again after
activating more rings and adding VM support. The main problem is that I
couldn't figure out where the CPU deadlock comes from, cause I couldn't
reliable reproduce the issue.
What is the content of /proc/<pid of X server>/task/*/stack and
sys/kernel/debug/dri/0/radeon_fence_info when the X server is stuck in
the
deadlock situation?
I'm pretty sure that we nearly always have a problem when two threads
are
waiting for fences on one of them detects that we have a lockup while
the
other one keeps holding the exclusive lock. Signaling all fences might
work
around that problem, but it probably would be better to fix the
underlying
issue.
Going to take a deeper look into it.
Christian.
Am 03.10.2013 02:45, schrieb Marek Olšák:
First of all, I can't complain about the reliability of the hardware
GPU reset. It's mostly the kernel driver that happens to run into a
deadlock at the same time.
Regarding the issue with fences, the problem is that the GPU reset
completes successfully according to dmesg, but X doesn't respond. I
can move the cursor on the screen, but I can't do anything else and
the UI is frozen. gdb says that X is stuck in GEM_WAIT_IDLE. I can
easily reproduce this, because it's the most common reason why a GPU
lockup leads to frozen X. The GPU actually recovers, but X is hung. I
can't tell whether the fences are just not signalled or whether there
is actually a real CPU deadlock I can't see.
This patch makes the problem go away and GPU resets are successful
(except for extreme cases, see below). With a small enough lockup
timeout, the lockups are just a minor annoyance and I thought I could
get through a piglit run just with a few tens or hundreds of GPU
resets...
A different type of deadlock showed up, though it needs a lot of
concurrently-running apps like piglit. What happened is that the
kernel driver was stuck/deadlocked in radeon_cs_ioctl presumably due
to a GPU hang while holding onto the exclusive lock, and another
thread wanting to do the GPU reset was unable to acquire the lock.
That said, I will use the patch locally, because it helps a lot. I got
a few lockups while writing this email and I'm glad I didn't have to
reboot.
Marek
On Wed, Oct 2, 2013 at 4:50 PM, Christian König
<deathsimple@xxxxxxxxxxx>
wrote:
Possible, but I would rather guess that this doesn't work because the
IB
test runs into a deadlock situation and so the GPU reset never fully
completes.
Can you reproduce the problem?
If you want to make GPU resets more reliable I would rather suggest to
remove the ring lock dependency.
Then we should try to give all the fence wait functions a (reliable)
timeout and move reset handling a layer up into the ioctl functions.
But for
this you need to rip out the old PM code first.
Christian.
Marek Olšák <maraeo@xxxxxxxxx> schrieb:
I'm afraid signalling the fences with an IB test is not reliable.
Marek
On Wed, Oct 2, 2013 at 3:52 PM, Christian König
<deathsimple@xxxxxxxxxxx> wrote:
NAK, after recovering from a lockup the first thing we do is
signalling all remaining fences with an IB test.
If we don't recover we indeed signal all fences manually.
Signalling all fences regardless of the outcome of the reset creates
problems with both types of partial resets.
Christian.
Marek Olšák <maraeo@xxxxxxxxx> schrieb:
From: Marek Olšák <marek.olsak@xxxxxxx>
After a lockup, fences are not signalled sometimes, causing
the GEM_WAIT_IDLE ioctl to never return, which sometimes results
in an X server freeze.
This fixes only one of many deadlocks which can occur during a
lockup.
Signed-off-by: Marek Olšák <marek.olsak@xxxxxxx>
---
drivers/gpu/drm/radeon/radeon_device.c | 5 +++++
1 file changed, 5 insertions(+)
diff --git a/drivers/gpu/drm/radeon/radeon_device.c
b/drivers/gpu/drm/radeon/radeon_device.c
index 841d0e0..7b97baa 100644
--- a/drivers/gpu/drm/radeon/radeon_device.c
+++ b/drivers/gpu/drm/radeon/radeon_device.c
@@ -1552,6 +1552,11 @@ int radeon_gpu_reset(struct radeon_device
*rdev)
radeon_save_bios_scratch_regs(rdev);
/* block TTM */
resched = ttm_bo_lock_delayed_workqueue(&rdev->mman.bdev);
+
+ mutex_lock(&rdev->ring_lock);
+ radeon_fence_driver_force_completion(rdev);
+ mutex_unlock(&rdev->ring_lock);
+
radeon_pm_suspend(rdev);
radeon_suspend(rdev);
--
1.8.1.2
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>From bdcb7536f8a1b0607c37760cf441888a6fc170c4 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Christian=20K=C3=B6nig?= <christian.koenig@xxxxxxx>
Date: Tue, 8 Oct 2013 18:02:38 +0200
Subject: [PATCH] drm/radeon: rework and fix reset detection v2
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit
Stop fiddling with jiffies, always wait for RADEON_FENCE_JIFFIES_TIMEOUT.
Consolidate the two wait sequence implementations into just one function.
Activate all waiters and remember if the reset was already done instead of
trying to reset from only one thread.
v2: clear reset flag earlier to avoid timeout in IB test
Signed-off-by: Christian König <christian.koenig@xxxxxxx>
---
drivers/gpu/drm/radeon/radeon.h | 2 +-
drivers/gpu/drm/radeon/radeon_device.c | 8 +
drivers/gpu/drm/radeon/radeon_fence.c | 347 +++++++++++----------------------
3 files changed, 127 insertions(+), 230 deletions(-)
diff --git a/drivers/gpu/drm/radeon/radeon.h b/drivers/gpu/drm/radeon/radeon.h
index a400ac1..0201c6e 100644
--- a/drivers/gpu/drm/radeon/radeon.h
+++ b/drivers/gpu/drm/radeon/radeon.h
@@ -327,7 +327,6 @@ struct radeon_fence_driver {
/* sync_seq is protected by ring emission lock */
uint64_t sync_seq[RADEON_NUM_RINGS];
atomic64_t last_seq;
- unsigned long last_activity;
bool initialized;
};
@@ -2170,6 +2169,7 @@ struct radeon_device {
bool need_dma32;
bool accel_working;
bool fastfb_working; /* IGP feature*/
+ bool needs_reset;
struct radeon_surface_reg surface_regs[RADEON_GEM_MAX_SURFACES];
const struct firmware *me_fw; /* all family ME firmware */
const struct firmware *pfp_fw; /* r6/700 PFP firmware */
diff --git a/drivers/gpu/drm/radeon/radeon_device.c b/drivers/gpu/drm/radeon/radeon_device.c
index 841d0e0..3f35f21 100644
--- a/drivers/gpu/drm/radeon/radeon_device.c
+++ b/drivers/gpu/drm/radeon/radeon_device.c
@@ -1549,6 +1549,14 @@ int radeon_gpu_reset(struct radeon_device *rdev)
int resched;
down_write(&rdev->exclusive_lock);
+
+ if (!rdev->needs_reset) {
+ up_write(&rdev->exclusive_lock);
+ return 0;
+ }
+
+ rdev->needs_reset = false;
+
radeon_save_bios_scratch_regs(rdev);
/* block TTM */
resched = ttm_bo_lock_delayed_workqueue(&rdev->mman.bdev);
diff --git a/drivers/gpu/drm/radeon/radeon_fence.c b/drivers/gpu/drm/radeon/radeon_fence.c
index ddb8f8e..b8f68b2 100644
--- a/drivers/gpu/drm/radeon/radeon_fence.c
+++ b/drivers/gpu/drm/radeon/radeon_fence.c
@@ -190,10 +190,8 @@ void radeon_fence_process(struct radeon_device *rdev, int ring)
}
} while (atomic64_xchg(&rdev->fence_drv[ring].last_seq, seq) > seq);
- if (wake) {
- rdev->fence_drv[ring].last_activity = jiffies;
+ if (wake)
wake_up_all(&rdev->fence_queue);
- }
}
/**
@@ -212,13 +210,13 @@ static void radeon_fence_destroy(struct kref *kref)
}
/**
- * radeon_fence_seq_signaled - check if a fence sequeuce number has signaled
+ * radeon_fence_seq_signaled - check if a fence sequence number has signaled
*
* @rdev: radeon device pointer
* @seq: sequence number
* @ring: ring index the fence is associated with
*
- * Check if the last singled fence sequnce number is >= the requested
+ * Check if the last signaled fence sequnce number is >= the requested
* sequence number (all asics).
* Returns true if the fence has signaled (current fence value
* is >= requested value) or false if it has not (current fence
@@ -263,113 +261,131 @@ bool radeon_fence_signaled(struct radeon_fence *fence)
}
/**
- * radeon_fence_wait_seq - wait for a specific sequence number
+ * radeon_fence_any_seq_signaled - check if any sequence number is signaled
*
* @rdev: radeon device pointer
- * @target_seq: sequence number we want to wait for
- * @ring: ring index the fence is associated with
+ * @seq: sequence numbers
+ *
+ * Check if the last signaled fence sequnce number is >= the requested
+ * sequence number (all asics).
+ * Returns true if any has signaled (current value is >= requested value)
+ * or false if it has not. Helper function for radeon_fence_wait_seq.
+ */
+static bool radeon_fence_any_seq_signaled(struct radeon_device *rdev, u64 *seq)
+{
+ unsigned i;
+
+ for (i = 0; i < RADEON_NUM_RINGS; ++i) {
+ if (seq[i] && radeon_fence_seq_signaled(rdev, seq[i], i))
+ return true;
+ }
+ return false;
+}
+
+/**
+ * radeon_fence_wait_seq - wait for a specific sequence numbers
+ *
+ * @rdev: radeon device pointer
+ * @target_seq: sequence number(s) we want to wait for
* @intr: use interruptable sleep
* @lock_ring: whether the ring should be locked or not
*
- * Wait for the requested sequence number to be written (all asics).
+ * Wait for the requested sequence number(s) to be written by any ring
+ * (all asics). Sequnce number array is indexed by ring id.
* @intr selects whether to use interruptable (true) or non-interruptable
* (false) sleep when waiting for the sequence number. Helper function
- * for radeon_fence_wait(), et al.
+ * for radeon_fence_wait_*().
* Returns 0 if the sequence number has passed, error for all other cases.
- * -EDEADLK is returned when a GPU lockup has been detected and the ring is
- * marked as not ready so no further jobs get scheduled until a successful
- * reset.
+ * -EDEADLK is returned when a GPU lockup has been detected.
*/
-static int radeon_fence_wait_seq(struct radeon_device *rdev, u64 target_seq,
- unsigned ring, bool intr, bool lock_ring)
+static int radeon_fence_wait_seq(struct radeon_device *rdev, u64 *target_seq,
+ bool intr, bool lock_ring)
{
- unsigned long timeout, last_activity;
- uint64_t seq;
- unsigned i;
+ uint64_t last_seq[RADEON_NUM_RINGS];
bool signaled;
- int r;
+ int i, r;
+
+ while (!radeon_fence_any_seq_signaled(rdev, target_seq)) {
+
+ /* Save current sequence values, used to check for GPU lockups */
+ for (i = 0; i < RADEON_NUM_RINGS; ++i) {
+ if (!target_seq[i])
+ continue;
- while (target_seq > atomic64_read(&rdev->fence_drv[ring].last_seq)) {
- if (!rdev->ring[ring].ready) {
- return -EBUSY;
+ last_seq[i] = atomic64_read(&rdev->fence_drv[i].last_seq);
+ trace_radeon_fence_wait_begin(rdev->ddev, target_seq[i]);
+ radeon_irq_kms_sw_irq_get(rdev, i);
}
- timeout = jiffies - RADEON_FENCE_JIFFIES_TIMEOUT;
- if (time_after(rdev->fence_drv[ring].last_activity, timeout)) {
- /* the normal case, timeout is somewhere before last_activity */
- timeout = rdev->fence_drv[ring].last_activity - timeout;
+ if (intr) {
+ r = wait_event_interruptible_timeout(rdev->fence_queue, (
+ (signaled = radeon_fence_any_seq_signaled(rdev, target_seq))
+ || rdev->needs_reset), RADEON_FENCE_JIFFIES_TIMEOUT);
} else {
- /* either jiffies wrapped around, or no fence was signaled in the last 500ms
- * anyway we will just wait for the minimum amount and then check for a lockup
- */
- timeout = 1;
+ r = wait_event_timeout(rdev->fence_queue, (
+ (signaled = radeon_fence_any_seq_signaled(rdev, target_seq))
+ || rdev->needs_reset), RADEON_FENCE_JIFFIES_TIMEOUT);
}
- seq = atomic64_read(&rdev->fence_drv[ring].last_seq);
- /* Save current last activity valuee, used to check for GPU lockups */
- last_activity = rdev->fence_drv[ring].last_activity;
- trace_radeon_fence_wait_begin(rdev->ddev, seq);
- radeon_irq_kms_sw_irq_get(rdev, ring);
- if (intr) {
- r = wait_event_interruptible_timeout(rdev->fence_queue,
- (signaled = radeon_fence_seq_signaled(rdev, target_seq, ring)),
- timeout);
- } else {
- r = wait_event_timeout(rdev->fence_queue,
- (signaled = radeon_fence_seq_signaled(rdev, target_seq, ring)),
- timeout);
+ for (i = 0; i < RADEON_NUM_RINGS; ++i) {
+ if (!target_seq[i])
+ continue;
+
+ radeon_irq_kms_sw_irq_put(rdev, i);
+ trace_radeon_fence_wait_end(rdev->ddev, target_seq[i]);
}
- radeon_irq_kms_sw_irq_put(rdev, ring);
- if (unlikely(r < 0)) {
+
+ if (unlikely(r < 0))
return r;
- }
- trace_radeon_fence_wait_end(rdev->ddev, seq);
if (unlikely(!signaled)) {
+ if (rdev->needs_reset)
+ return -EDEADLK;
+
/* we were interrupted for some reason and fence
* isn't signaled yet, resume waiting */
- if (r) {
+ if (r)
continue;
+
+ for (i = 0; i < RADEON_NUM_RINGS; ++i) {
+ if (!target_seq[i])
+ continue;
+
+ if (last_seq[i] != atomic64_read(&rdev->fence_drv[i].last_seq))
+ break;
}
- /* check if sequence value has changed since last_activity */
- if (seq != atomic64_read(&rdev->fence_drv[ring].last_seq)) {
+ if (i != RADEON_NUM_RINGS)
continue;
- }
- if (lock_ring) {
+ if (lock_ring)
mutex_lock(&rdev->ring_lock);
- }
- /* test if somebody else has already decided that this is a lockup */
- if (last_activity != rdev->fence_drv[ring].last_activity) {
- if (lock_ring) {
- mutex_unlock(&rdev->ring_lock);
- }
- continue;
+ for (i = 0; i < RADEON_NUM_RINGS; ++i) {
+ if (!target_seq[i])
+ continue;
+
+ if (radeon_ring_is_lockup(rdev, i, &rdev->ring[i]))
+ break;
}
- if (radeon_ring_is_lockup(rdev, ring, &rdev->ring[ring])) {
+ if (i < RADEON_NUM_RINGS) {
/* good news we believe it's a lockup */
- dev_warn(rdev->dev, "GPU lockup (waiting for 0x%016llx last fence id 0x%016llx)\n",
- target_seq, seq);
-
- /* change last activity so nobody else think there is a lockup */
- for (i = 0; i < RADEON_NUM_RINGS; ++i) {
- rdev->fence_drv[i].last_activity = jiffies;
- }
-
- /* mark the ring as not ready any more */
- rdev->ring[ring].ready = false;
- if (lock_ring) {
+ dev_warn(rdev->dev, "GPU lockup (waiting for "
+ "0x%016llx last fence id 0x%016llx on"
+ " ring %d)\n",
+ target_seq[i], last_seq[i], i);
+
+ /* remember that we need an reset */
+ rdev->needs_reset = true;
+ if (lock_ring)
mutex_unlock(&rdev->ring_lock);
- }
+ wake_up_all(&rdev->fence_queue);
return -EDEADLK;
}
- if (lock_ring) {
+ if (lock_ring)
mutex_unlock(&rdev->ring_lock);
- }
}
}
return 0;
@@ -388,6 +404,7 @@ static int radeon_fence_wait_seq(struct radeon_device *rdev, u64 target_seq,
*/
int radeon_fence_wait(struct radeon_fence *fence, bool intr)
{
+ uint64_t seq[RADEON_NUM_RINGS] = {};
int r;
if (fence == NULL) {
@@ -395,147 +412,15 @@ int radeon_fence_wait(struct radeon_fence *fence, bool intr)
return -EINVAL;
}
- r = radeon_fence_wait_seq(fence->rdev, fence->seq,
- fence->ring, intr, true);
- if (r) {
- return r;
- }
- fence->seq = RADEON_FENCE_SIGNALED_SEQ;
- return 0;
-}
-
-static bool radeon_fence_any_seq_signaled(struct radeon_device *rdev, u64 *seq)
-{
- unsigned i;
-
- for (i = 0; i < RADEON_NUM_RINGS; ++i) {
- if (seq[i] && radeon_fence_seq_signaled(rdev, seq[i], i)) {
- return true;
- }
- }
- return false;
-}
-
-/**
- * radeon_fence_wait_any_seq - wait for a sequence number on any ring
- *
- * @rdev: radeon device pointer
- * @target_seq: sequence number(s) we want to wait for
- * @intr: use interruptable sleep
- *
- * Wait for the requested sequence number(s) to be written by any ring
- * (all asics). Sequnce number array is indexed by ring id.
- * @intr selects whether to use interruptable (true) or non-interruptable
- * (false) sleep when waiting for the sequence number. Helper function
- * for radeon_fence_wait_any(), et al.
- * Returns 0 if the sequence number has passed, error for all other cases.
- */
-static int radeon_fence_wait_any_seq(struct radeon_device *rdev,
- u64 *target_seq, bool intr)
-{
- unsigned long timeout, last_activity, tmp;
- unsigned i, ring = RADEON_NUM_RINGS;
- bool signaled;
- int r;
-
- for (i = 0, last_activity = 0; i < RADEON_NUM_RINGS; ++i) {
- if (!target_seq[i]) {
- continue;
- }
-
- /* use the most recent one as indicator */
- if (time_after(rdev->fence_drv[i].last_activity, last_activity)) {
- last_activity = rdev->fence_drv[i].last_activity;
- }
-
- /* For lockup detection just pick the lowest ring we are
- * actively waiting for
- */
- if (i < ring) {
- ring = i;
- }
- }
-
- /* nothing to wait for ? */
- if (ring == RADEON_NUM_RINGS) {
- return -ENOENT;
- }
-
- while (!radeon_fence_any_seq_signaled(rdev, target_seq)) {
- timeout = jiffies - RADEON_FENCE_JIFFIES_TIMEOUT;
- if (time_after(last_activity, timeout)) {
- /* the normal case, timeout is somewhere before last_activity */
- timeout = last_activity - timeout;
- } else {
- /* either jiffies wrapped around, or no fence was signaled in the last 500ms
- * anyway we will just wait for the minimum amount and then check for a lockup
- */
- timeout = 1;
- }
+ seq[fence->ring] = fence->seq;
+ if (seq[fence->ring] == RADEON_FENCE_SIGNALED_SEQ)
+ return 0;
- trace_radeon_fence_wait_begin(rdev->ddev, target_seq[ring]);
- for (i = 0; i < RADEON_NUM_RINGS; ++i) {
- if (target_seq[i]) {
- radeon_irq_kms_sw_irq_get(rdev, i);
- }
- }
- if (intr) {
- r = wait_event_interruptible_timeout(rdev->fence_queue,
- (signaled = radeon_fence_any_seq_signaled(rdev, target_seq)),
- timeout);
- } else {
- r = wait_event_timeout(rdev->fence_queue,
- (signaled = radeon_fence_any_seq_signaled(rdev, target_seq)),
- timeout);
- }
- for (i = 0; i < RADEON_NUM_RINGS; ++i) {
- if (target_seq[i]) {
- radeon_irq_kms_sw_irq_put(rdev, i);
- }
- }
- if (unlikely(r < 0)) {
- return r;
- }
- trace_radeon_fence_wait_end(rdev->ddev, target_seq[ring]);
-
- if (unlikely(!signaled)) {
- /* we were interrupted for some reason and fence
- * isn't signaled yet, resume waiting */
- if (r) {
- continue;
- }
-
- mutex_lock(&rdev->ring_lock);
- for (i = 0, tmp = 0; i < RADEON_NUM_RINGS; ++i) {
- if (time_after(rdev->fence_drv[i].last_activity, tmp)) {
- tmp = rdev->fence_drv[i].last_activity;
- }
- }
- /* test if somebody else has already decided that this is a lockup */
- if (last_activity != tmp) {
- last_activity = tmp;
- mutex_unlock(&rdev->ring_lock);
- continue;
- }
-
- if (radeon_ring_is_lockup(rdev, ring, &rdev->ring[ring])) {
- /* good news we believe it's a lockup */
- dev_warn(rdev->dev, "GPU lockup (waiting for 0x%016llx)\n",
- target_seq[ring]);
-
- /* change last activity so nobody else think there is a lockup */
- for (i = 0; i < RADEON_NUM_RINGS; ++i) {
- rdev->fence_drv[i].last_activity = jiffies;
- }
+ r = radeon_fence_wait_seq(fence->rdev, seq, intr, true);
+ if (r)
+ return r;
- /* mark the ring as not ready any more */
- rdev->ring[ring].ready = false;
- mutex_unlock(&rdev->ring_lock);
- return -EDEADLK;
- }
- mutex_unlock(&rdev->ring_lock);
- }
- }
+ fence->seq = RADEON_FENCE_SIGNALED_SEQ;
return 0;
}
@@ -557,7 +442,7 @@ int radeon_fence_wait_any(struct radeon_device *rdev,
bool intr)
{
uint64_t seq[RADEON_NUM_RINGS];
- unsigned i;
+ unsigned i, num_rings = 0;
int r;
for (i = 0; i < RADEON_NUM_RINGS; ++i) {
@@ -567,15 +452,19 @@ int radeon_fence_wait_any(struct radeon_device *rdev,
continue;
}
- if (fences[i]->seq == RADEON_FENCE_SIGNALED_SEQ) {
- /* something was allready signaled */
- return 0;
- }
-
seq[i] = fences[i]->seq;
+ ++num_rings;
+
+ /* test if something was allready signaled */
+ if (seq[i] == RADEON_FENCE_SIGNALED_SEQ)
+ return 0;
}
- r = radeon_fence_wait_any_seq(rdev, seq, intr);
+ /* nothing to wait for ? */
+ if (num_rings == 0)
+ return -ENOENT;
+
+ r = radeon_fence_wait_seq(rdev, seq, intr, true);
if (r) {
return r;
}
@@ -594,15 +483,15 @@ int radeon_fence_wait_any(struct radeon_device *rdev,
*/
int radeon_fence_wait_next_locked(struct radeon_device *rdev, int ring)
{
- uint64_t seq;
+ uint64_t seq[RADEON_NUM_RINGS] = {};
- seq = atomic64_read(&rdev->fence_drv[ring].last_seq) + 1ULL;
- if (seq >= rdev->fence_drv[ring].sync_seq[ring]) {
+ seq[ring] = atomic64_read(&rdev->fence_drv[ring].last_seq) + 1ULL;
+ if (seq[ring] >= rdev->fence_drv[ring].sync_seq[ring]) {
/* nothing to wait for, last_seq is
already the last emited fence */
return -ENOENT;
}
- return radeon_fence_wait_seq(rdev, seq, ring, false, false);
+ return radeon_fence_wait_seq(rdev, seq, false, false);
}
/**
@@ -617,14 +506,15 @@ int radeon_fence_wait_next_locked(struct radeon_device *rdev, int ring)
*/
int radeon_fence_wait_empty_locked(struct radeon_device *rdev, int ring)
{
- uint64_t seq = rdev->fence_drv[ring].sync_seq[ring];
+ uint64_t seq[RADEON_NUM_RINGS] = {};
int r;
- r = radeon_fence_wait_seq(rdev, seq, ring, false, false);
+ seq[ring] = rdev->fence_drv[ring].sync_seq[ring];
+ r = radeon_fence_wait_seq(rdev, seq, false, false);
if (r) {
- if (r == -EDEADLK) {
+ if (r == -EDEADLK)
return -EDEADLK;
- }
+
dev_err(rdev->dev, "error waiting for ring[%d] to become idle (%d)\n",
ring, r);
}
@@ -826,7 +716,6 @@ static void radeon_fence_driver_init_ring(struct radeon_device *rdev, int ring)
for (i = 0; i < RADEON_NUM_RINGS; ++i)
rdev->fence_drv[ring].sync_seq[i] = 0;
atomic64_set(&rdev->fence_drv[ring].last_seq, 0);
- rdev->fence_drv[ring].last_activity = jiffies;
rdev->fence_drv[ring].initialized = false;
}
--
1.8.1.2
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