drm/radeon: cope with foreign fences inside the reservation object
Not the whole world is a radeon! :-)
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Maarten Lankhorst <maarten.lankhorst@canonical.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
diff --git a/drivers/gpu/drm/radeon/cik.c b/drivers/gpu/drm/radeon/cik.c
index 05c2f43..fc49a8d 100644
--- a/drivers/gpu/drm/radeon/cik.c
+++ b/drivers/gpu/drm/radeon/cik.c
@@ -3993,7 +3993,7 @@
return ERR_PTR(r);
}
- radeon_semaphore_sync_resv(sem, resv, false);
+ radeon_semaphore_sync_resv(rdev, sem, resv, false);
radeon_semaphore_sync_rings(rdev, sem, ring->idx);
for (i = 0; i < num_loops; i++) {
diff --git a/drivers/gpu/drm/radeon/cik_sdma.c b/drivers/gpu/drm/radeon/cik_sdma.c
index c01a610..c473c91 100644
--- a/drivers/gpu/drm/radeon/cik_sdma.c
+++ b/drivers/gpu/drm/radeon/cik_sdma.c
@@ -571,7 +571,7 @@
return ERR_PTR(r);
}
- radeon_semaphore_sync_resv(sem, resv, false);
+ radeon_semaphore_sync_resv(rdev, sem, resv, false);
radeon_semaphore_sync_rings(rdev, sem, ring->idx);
for (i = 0; i < num_loops; i++) {
diff --git a/drivers/gpu/drm/radeon/evergreen_dma.c b/drivers/gpu/drm/radeon/evergreen_dma.c
index 946f37d..66bcfad 100644
--- a/drivers/gpu/drm/radeon/evergreen_dma.c
+++ b/drivers/gpu/drm/radeon/evergreen_dma.c
@@ -133,7 +133,7 @@
return ERR_PTR(r);
}
- radeon_semaphore_sync_resv(sem, resv, false);
+ radeon_semaphore_sync_resv(rdev, sem, resv, false);
radeon_semaphore_sync_rings(rdev, sem, ring->idx);
for (i = 0; i < num_loops; i++) {
diff --git a/drivers/gpu/drm/radeon/r600.c b/drivers/gpu/drm/radeon/r600.c
index 25f367a..f8eb519 100644
--- a/drivers/gpu/drm/radeon/r600.c
+++ b/drivers/gpu/drm/radeon/r600.c
@@ -2912,7 +2912,7 @@
return ERR_PTR(r);
}
- radeon_semaphore_sync_resv(sem, resv, false);
+ radeon_semaphore_sync_resv(rdev, sem, resv, false);
radeon_semaphore_sync_rings(rdev, sem, ring->idx);
radeon_ring_write(ring, PACKET3(PACKET3_SET_CONFIG_REG, 1));
diff --git a/drivers/gpu/drm/radeon/r600_dma.c b/drivers/gpu/drm/radeon/r600_dma.c
index fc54224..a49db83 100644
--- a/drivers/gpu/drm/radeon/r600_dma.c
+++ b/drivers/gpu/drm/radeon/r600_dma.c
@@ -470,7 +470,7 @@
return ERR_PTR(r);
}
- radeon_semaphore_sync_resv(sem, resv, false);
+ radeon_semaphore_sync_resv(rdev, sem, resv, false);
radeon_semaphore_sync_rings(rdev, sem, ring->idx);
for (i = 0; i < num_loops; i++) {
diff --git a/drivers/gpu/drm/radeon/radeon.h b/drivers/gpu/drm/radeon/radeon.h
index 06d24b8..e01424fe 100644
--- a/drivers/gpu/drm/radeon/radeon.h
+++ b/drivers/gpu/drm/radeon/radeon.h
@@ -589,9 +589,10 @@
struct radeon_semaphore *semaphore);
void radeon_semaphore_sync_fence(struct radeon_semaphore *semaphore,
struct radeon_fence *fence);
-void radeon_semaphore_sync_resv(struct radeon_semaphore *semaphore,
- struct reservation_object *resv,
- bool shared);
+int radeon_semaphore_sync_resv(struct radeon_device *rdev,
+ struct radeon_semaphore *semaphore,
+ struct reservation_object *resv,
+ bool shared);
int radeon_semaphore_sync_rings(struct radeon_device *rdev,
struct radeon_semaphore *semaphore,
int waiting_ring);
diff --git a/drivers/gpu/drm/radeon/radeon_cs.c b/drivers/gpu/drm/radeon/radeon_cs.c
index f662de4..1c89344 100644
--- a/drivers/gpu/drm/radeon/radeon_cs.c
+++ b/drivers/gpu/drm/radeon/radeon_cs.c
@@ -249,9 +249,9 @@
return 0;
}
-static void radeon_cs_sync_rings(struct radeon_cs_parser *p)
+static int radeon_cs_sync_rings(struct radeon_cs_parser *p)
{
- int i;
+ int i, r = 0;
for (i = 0; i < p->nrelocs; i++) {
struct reservation_object *resv;
@@ -260,9 +260,13 @@
continue;
resv = p->relocs[i].robj->tbo.resv;
- radeon_semaphore_sync_resv(p->ib.semaphore, resv,
- p->relocs[i].tv.shared);
+ r = radeon_semaphore_sync_resv(p->rdev, p->ib.semaphore, resv,
+ p->relocs[i].tv.shared);
+
+ if (r)
+ break;
}
+ return r;
}
/* XXX: note that this is called from the legacy UMS CS ioctl as well */
@@ -472,13 +476,19 @@
return r;
}
+ r = radeon_cs_sync_rings(parser);
+ if (r) {
+ if (r != -ERESTARTSYS)
+ DRM_ERROR("Failed to sync rings: %i\n", r);
+ return r;
+ }
+
if (parser->ring == R600_RING_TYPE_UVD_INDEX)
radeon_uvd_note_usage(rdev);
else if ((parser->ring == TN_RING_TYPE_VCE1_INDEX) ||
(parser->ring == TN_RING_TYPE_VCE2_INDEX))
radeon_vce_note_usage(rdev);
- radeon_cs_sync_rings(parser);
r = radeon_ib_schedule(rdev, &parser->ib, NULL, true);
if (r) {
DRM_ERROR("Failed to schedule IB !\n");
@@ -565,7 +575,13 @@
if (r) {
goto out;
}
- radeon_cs_sync_rings(parser);
+
+ r = radeon_cs_sync_rings(parser);
+ if (r) {
+ if (r != -ERESTARTSYS)
+ DRM_ERROR("Failed to sync rings: %i\n", r);
+ goto out;
+ }
radeon_semaphore_sync_fence(parser->ib.semaphore, vm->fence);
if ((rdev->family >= CHIP_TAHITI) &&
diff --git a/drivers/gpu/drm/radeon/radeon_fence.c b/drivers/gpu/drm/radeon/radeon_fence.c
index af9f2d6..995167025 100644
--- a/drivers/gpu/drm/radeon/radeon_fence.c
+++ b/drivers/gpu/drm/radeon/radeon_fence.c
@@ -541,6 +541,15 @@
uint64_t seq[RADEON_NUM_RINGS] = {};
long r;
+ /*
+ * This function should not be called on !radeon fences.
+ * If this is the case, it would mean this function can
+ * also be called on radeon fences belonging to another card.
+ * exclusive_lock is not held in that case.
+ */
+ if (WARN_ON_ONCE(!to_radeon_fence(&fence->base)))
+ return fence_wait(&fence->base, intr);
+
seq[fence->ring] = fence->seq;
r = radeon_fence_wait_seq_timeout(fence->rdev, seq, intr, MAX_SCHEDULE_TIMEOUT);
if (r < 0) {
diff --git a/drivers/gpu/drm/radeon/radeon_semaphore.c b/drivers/gpu/drm/radeon/radeon_semaphore.c
index 4d4b0773..6deb08f 100644
--- a/drivers/gpu/drm/radeon/radeon_semaphore.c
+++ b/drivers/gpu/drm/radeon/radeon_semaphore.c
@@ -124,27 +124,42 @@
*
* Sync to the fence using this semaphore object
*/
-void radeon_semaphore_sync_resv(struct radeon_semaphore *sema,
- struct reservation_object *resv,
- bool shared)
+int radeon_semaphore_sync_resv(struct radeon_device *rdev,
+ struct radeon_semaphore *sema,
+ struct reservation_object *resv,
+ bool shared)
{
struct reservation_object_list *flist;
struct fence *f;
+ struct radeon_fence *fence;
unsigned i;
+ int r = 0;
/* always sync to the exclusive fence */
f = reservation_object_get_excl(resv);
- radeon_semaphore_sync_fence(sema, (struct radeon_fence*)f);
+ fence = f ? to_radeon_fence(f) : NULL;
+ if (fence && fence->rdev == rdev)
+ radeon_semaphore_sync_fence(sema, fence);
+ else if (f)
+ r = fence_wait(f, true);
flist = reservation_object_get_list(resv);
- if (shared || !flist)
- return;
+ if (shared || !flist || r)
+ return r;
for (i = 0; i < flist->shared_count; ++i) {
f = rcu_dereference_protected(flist->shared[i],
reservation_object_held(resv));
- radeon_semaphore_sync_fence(sema, (struct radeon_fence*)f);
+ fence = to_radeon_fence(f);
+ if (fence && fence->rdev == rdev)
+ radeon_semaphore_sync_fence(sema, fence);
+ else
+ r = fence_wait(f, true);
+
+ if (r)
+ break;
}
+ return r;
}
/**
diff --git a/drivers/gpu/drm/radeon/radeon_vm.c b/drivers/gpu/drm/radeon/radeon_vm.c
index ce87095..8af1a94 100644
--- a/drivers/gpu/drm/radeon/radeon_vm.c
+++ b/drivers/gpu/drm/radeon/radeon_vm.c
@@ -698,7 +698,7 @@
if (ib.length_dw != 0) {
radeon_asic_vm_pad_ib(rdev, &ib);
- radeon_semaphore_sync_resv(ib.semaphore, pd->tbo.resv, false);
+ radeon_semaphore_sync_resv(rdev, ib.semaphore, pd->tbo.resv, false);
radeon_semaphore_sync_fence(ib.semaphore, vm->last_id_use);
WARN_ON(ib.length_dw > ndw);
r = radeon_ib_schedule(rdev, &ib, NULL, false);
@@ -825,7 +825,7 @@
unsigned nptes;
uint64_t pte;
- radeon_semaphore_sync_resv(ib->semaphore, pt->tbo.resv, false);
+ radeon_semaphore_sync_resv(rdev, ib->semaphore, pt->tbo.resv, false);
if ((addr & ~mask) == (end & ~mask))
nptes = end - addr;
diff --git a/drivers/gpu/drm/radeon/rv770_dma.c b/drivers/gpu/drm/radeon/rv770_dma.c
index c112764..7f34bad 100644
--- a/drivers/gpu/drm/radeon/rv770_dma.c
+++ b/drivers/gpu/drm/radeon/rv770_dma.c
@@ -67,7 +67,7 @@
return ERR_PTR(r);
}
- radeon_semaphore_sync_resv(sem, resv, false);
+ radeon_semaphore_sync_resv(rdev, sem, resv, false);
radeon_semaphore_sync_rings(rdev, sem, ring->idx);
for (i = 0; i < num_loops; i++) {
diff --git a/drivers/gpu/drm/radeon/si_dma.c b/drivers/gpu/drm/radeon/si_dma.c
index 9b0dfbc..b58f12b 100644
--- a/drivers/gpu/drm/radeon/si_dma.c
+++ b/drivers/gpu/drm/radeon/si_dma.c
@@ -252,7 +252,7 @@
return ERR_PTR(r);
}
- radeon_semaphore_sync_resv(sem, resv, false);
+ radeon_semaphore_sync_resv(rdev, sem, resv, false);
radeon_semaphore_sync_rings(rdev, sem, ring->idx);
for (i = 0; i < num_loops; i++) {
