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path: root/drivers/gpu/drm/radeon/radeon_fence.c
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Diffstat (limited to 'drivers/gpu/drm/radeon/radeon_fence.c')
-rw-r--r--drivers/gpu/drm/radeon/radeon_fence.c307
1 files changed, 186 insertions, 121 deletions
diff --git a/drivers/gpu/drm/radeon/radeon_fence.c b/drivers/gpu/drm/radeon/radeon_fence.c
index 76ec0e9ed8a..64ea3dd9e6f 100644
--- a/drivers/gpu/drm/radeon/radeon_fence.c
+++ b/drivers/gpu/drm/radeon/radeon_fence.c
@@ -40,32 +40,24 @@
#include "radeon.h"
#include "radeon_trace.h"
-static void radeon_fence_write(struct radeon_device *rdev, u32 seq)
+static void radeon_fence_write(struct radeon_device *rdev, u32 seq, int ring)
{
if (rdev->wb.enabled) {
- u32 scratch_index;
- if (rdev->wb.use_event)
- scratch_index = R600_WB_EVENT_OFFSET + rdev->fence_drv.scratch_reg - rdev->scratch.reg_base;
- else
- scratch_index = RADEON_WB_SCRATCH_OFFSET + rdev->fence_drv.scratch_reg - rdev->scratch.reg_base;
- rdev->wb.wb[scratch_index/4] = cpu_to_le32(seq);
- } else
- WREG32(rdev->fence_drv.scratch_reg, seq);
+ *rdev->fence_drv[ring].cpu_addr = cpu_to_le32(seq);
+ } else {
+ WREG32(rdev->fence_drv[ring].scratch_reg, seq);
+ }
}
-static u32 radeon_fence_read(struct radeon_device *rdev)
+static u32 radeon_fence_read(struct radeon_device *rdev, int ring)
{
- u32 seq;
+ u32 seq = 0;
if (rdev->wb.enabled) {
- u32 scratch_index;
- if (rdev->wb.use_event)
- scratch_index = R600_WB_EVENT_OFFSET + rdev->fence_drv.scratch_reg - rdev->scratch.reg_base;
- else
- scratch_index = RADEON_WB_SCRATCH_OFFSET + rdev->fence_drv.scratch_reg - rdev->scratch.reg_base;
- seq = le32_to_cpu(rdev->wb.wb[scratch_index/4]);
- } else
- seq = RREG32(rdev->fence_drv.scratch_reg);
+ seq = le32_to_cpu(*rdev->fence_drv[ring].cpu_addr);
+ } else {
+ seq = RREG32(rdev->fence_drv[ring].scratch_reg);
+ }
return seq;
}
@@ -73,28 +65,28 @@ int radeon_fence_emit(struct radeon_device *rdev, struct radeon_fence *fence)
{
unsigned long irq_flags;
- write_lock_irqsave(&rdev->fence_drv.lock, irq_flags);
- if (fence->emited) {
- write_unlock_irqrestore(&rdev->fence_drv.lock, irq_flags);
+ write_lock_irqsave(&rdev->fence_lock, irq_flags);
+ if (fence->emitted) {
+ write_unlock_irqrestore(&rdev->fence_lock, irq_flags);
return 0;
}
- fence->seq = atomic_add_return(1, &rdev->fence_drv.seq);
- if (!rdev->cp.ready)
+ fence->seq = atomic_add_return(1, &rdev->fence_drv[fence->ring].seq);
+ if (!rdev->ring[fence->ring].ready)
/* FIXME: cp is not running assume everythings is done right
* away
*/
- radeon_fence_write(rdev, fence->seq);
+ radeon_fence_write(rdev, fence->seq, fence->ring);
else
- radeon_fence_ring_emit(rdev, fence);
+ radeon_fence_ring_emit(rdev, fence->ring, fence);
trace_radeon_fence_emit(rdev->ddev, fence->seq);
- fence->emited = true;
- list_move_tail(&fence->list, &rdev->fence_drv.emited);
- write_unlock_irqrestore(&rdev->fence_drv.lock, irq_flags);
+ fence->emitted = true;
+ list_move_tail(&fence->list, &rdev->fence_drv[fence->ring].emitted);
+ write_unlock_irqrestore(&rdev->fence_lock, irq_flags);
return 0;
}
-static bool radeon_fence_poll_locked(struct radeon_device *rdev)
+static bool radeon_fence_poll_locked(struct radeon_device *rdev, int ring)
{
struct radeon_fence *fence;
struct list_head *i, *n;
@@ -102,34 +94,34 @@ static bool radeon_fence_poll_locked(struct radeon_device *rdev)
bool wake = false;
unsigned long cjiffies;
- seq = radeon_fence_read(rdev);
- if (seq != rdev->fence_drv.last_seq) {
- rdev->fence_drv.last_seq = seq;
- rdev->fence_drv.last_jiffies = jiffies;
- rdev->fence_drv.last_timeout = RADEON_FENCE_JIFFIES_TIMEOUT;
+ seq = radeon_fence_read(rdev, ring);
+ if (seq != rdev->fence_drv[ring].last_seq) {
+ rdev->fence_drv[ring].last_seq = seq;
+ rdev->fence_drv[ring].last_jiffies = jiffies;
+ rdev->fence_drv[ring].last_timeout = RADEON_FENCE_JIFFIES_TIMEOUT;
} else {
cjiffies = jiffies;
- if (time_after(cjiffies, rdev->fence_drv.last_jiffies)) {
- cjiffies -= rdev->fence_drv.last_jiffies;
- if (time_after(rdev->fence_drv.last_timeout, cjiffies)) {
+ if (time_after(cjiffies, rdev->fence_drv[ring].last_jiffies)) {
+ cjiffies -= rdev->fence_drv[ring].last_jiffies;
+ if (time_after(rdev->fence_drv[ring].last_timeout, cjiffies)) {
/* update the timeout */
- rdev->fence_drv.last_timeout -= cjiffies;
+ rdev->fence_drv[ring].last_timeout -= cjiffies;
} else {
/* the 500ms timeout is elapsed we should test
* for GPU lockup
*/
- rdev->fence_drv.last_timeout = 1;
+ rdev->fence_drv[ring].last_timeout = 1;
}
} else {
/* wrap around update last jiffies, we will just wait
* a little longer
*/
- rdev->fence_drv.last_jiffies = cjiffies;
+ rdev->fence_drv[ring].last_jiffies = cjiffies;
}
return false;
}
n = NULL;
- list_for_each(i, &rdev->fence_drv.emited) {
+ list_for_each(i, &rdev->fence_drv[ring].emitted) {
fence = list_entry(i, struct radeon_fence, list);
if (fence->seq == seq) {
n = i;
@@ -141,11 +133,11 @@ static bool radeon_fence_poll_locked(struct radeon_device *rdev)
i = n;
do {
n = i->prev;
- list_move_tail(i, &rdev->fence_drv.signaled);
+ list_move_tail(i, &rdev->fence_drv[ring].signaled);
fence = list_entry(i, struct radeon_fence, list);
fence->signaled = true;
i = n;
- } while (i != &rdev->fence_drv.emited);
+ } while (i != &rdev->fence_drv[ring].emitted);
wake = true;
}
return wake;
@@ -157,14 +149,18 @@ static void radeon_fence_destroy(struct kref *kref)
struct radeon_fence *fence;
fence = container_of(kref, struct radeon_fence, kref);
- write_lock_irqsave(&fence->rdev->fence_drv.lock, irq_flags);
+ write_lock_irqsave(&fence->rdev->fence_lock, irq_flags);
list_del(&fence->list);
- fence->emited = false;
- write_unlock_irqrestore(&fence->rdev->fence_drv.lock, irq_flags);
+ fence->emitted = false;
+ write_unlock_irqrestore(&fence->rdev->fence_lock, irq_flags);
+ if (fence->semaphore)
+ radeon_semaphore_free(fence->rdev, fence->semaphore);
kfree(fence);
}
-int radeon_fence_create(struct radeon_device *rdev, struct radeon_fence **fence)
+int radeon_fence_create(struct radeon_device *rdev,
+ struct radeon_fence **fence,
+ int ring)
{
unsigned long irq_flags;
@@ -174,18 +170,19 @@ int radeon_fence_create(struct radeon_device *rdev, struct radeon_fence **fence)
}
kref_init(&((*fence)->kref));
(*fence)->rdev = rdev;
- (*fence)->emited = false;
+ (*fence)->emitted = false;
(*fence)->signaled = false;
(*fence)->seq = 0;
+ (*fence)->ring = ring;
+ (*fence)->semaphore = NULL;
INIT_LIST_HEAD(&(*fence)->list);
- write_lock_irqsave(&rdev->fence_drv.lock, irq_flags);
- list_add_tail(&(*fence)->list, &rdev->fence_drv.created);
- write_unlock_irqrestore(&rdev->fence_drv.lock, irq_flags);
+ write_lock_irqsave(&rdev->fence_lock, irq_flags);
+ list_add_tail(&(*fence)->list, &rdev->fence_drv[ring].created);
+ write_unlock_irqrestore(&rdev->fence_lock, irq_flags);
return 0;
}
-
bool radeon_fence_signaled(struct radeon_fence *fence)
{
unsigned long irq_flags;
@@ -197,21 +194,21 @@ bool radeon_fence_signaled(struct radeon_fence *fence)
if (fence->rdev->gpu_lockup)
return true;
- write_lock_irqsave(&fence->rdev->fence_drv.lock, irq_flags);
+ write_lock_irqsave(&fence->rdev->fence_lock, irq_flags);
signaled = fence->signaled;
/* if we are shuting down report all fence as signaled */
if (fence->rdev->shutdown) {
signaled = true;
}
- if (!fence->emited) {
- WARN(1, "Querying an unemited fence : %p !\n", fence);
+ if (!fence->emitted) {
+ WARN(1, "Querying an unemitted fence : %p !\n", fence);
signaled = true;
}
if (!signaled) {
- radeon_fence_poll_locked(fence->rdev);
+ radeon_fence_poll_locked(fence->rdev, fence->ring);
signaled = fence->signaled;
}
- write_unlock_irqrestore(&fence->rdev->fence_drv.lock, irq_flags);
+ write_unlock_irqrestore(&fence->rdev->fence_lock, irq_flags);
return signaled;
}
@@ -230,24 +227,24 @@ int radeon_fence_wait(struct radeon_fence *fence, bool intr)
if (radeon_fence_signaled(fence)) {
return 0;
}
- timeout = rdev->fence_drv.last_timeout;
+ timeout = rdev->fence_drv[fence->ring].last_timeout;
retry:
/* save current sequence used to check for GPU lockup */
- seq = rdev->fence_drv.last_seq;
+ seq = rdev->fence_drv[fence->ring].last_seq;
trace_radeon_fence_wait_begin(rdev->ddev, seq);
if (intr) {
- radeon_irq_kms_sw_irq_get(rdev);
- r = wait_event_interruptible_timeout(rdev->fence_drv.queue,
+ radeon_irq_kms_sw_irq_get(rdev, fence->ring);
+ r = wait_event_interruptible_timeout(rdev->fence_drv[fence->ring].queue,
radeon_fence_signaled(fence), timeout);
- radeon_irq_kms_sw_irq_put(rdev);
+ radeon_irq_kms_sw_irq_put(rdev, fence->ring);
if (unlikely(r < 0)) {
return r;
}
} else {
- radeon_irq_kms_sw_irq_get(rdev);
- r = wait_event_timeout(rdev->fence_drv.queue,
+ radeon_irq_kms_sw_irq_get(rdev, fence->ring);
+ r = wait_event_timeout(rdev->fence_drv[fence->ring].queue,
radeon_fence_signaled(fence), timeout);
- radeon_irq_kms_sw_irq_put(rdev);
+ radeon_irq_kms_sw_irq_put(rdev, fence->ring);
}
trace_radeon_fence_wait_end(rdev->ddev, seq);
if (unlikely(!radeon_fence_signaled(fence))) {
@@ -258,10 +255,11 @@ retry:
timeout = r;
goto retry;
}
- /* don't protect read access to rdev->fence_drv.last_seq
+ /* don't protect read access to rdev->fence_drv[t].last_seq
* if we experiencing a lockup the value doesn't change
*/
- if (seq == rdev->fence_drv.last_seq && radeon_gpu_is_lockup(rdev)) {
+ if (seq == rdev->fence_drv[fence->ring].last_seq &&
+ radeon_gpu_is_lockup(rdev, &rdev->ring[fence->ring])) {
/* good news we believe it's a lockup */
printk(KERN_WARNING "GPU lockup (waiting for 0x%08X last fence id 0x%08X)\n",
fence->seq, seq);
@@ -272,20 +270,20 @@ retry:
r = radeon_gpu_reset(rdev);
if (r)
return r;
- radeon_fence_write(rdev, fence->seq);
+ radeon_fence_write(rdev, fence->seq, fence->ring);
rdev->gpu_lockup = false;
}
timeout = RADEON_FENCE_JIFFIES_TIMEOUT;
- write_lock_irqsave(&rdev->fence_drv.lock, irq_flags);
- rdev->fence_drv.last_timeout = RADEON_FENCE_JIFFIES_TIMEOUT;
- rdev->fence_drv.last_jiffies = jiffies;
- write_unlock_irqrestore(&rdev->fence_drv.lock, irq_flags);
+ write_lock_irqsave(&rdev->fence_lock, irq_flags);
+ rdev->fence_drv[fence->ring].last_timeout = RADEON_FENCE_JIFFIES_TIMEOUT;
+ rdev->fence_drv[fence->ring].last_jiffies = jiffies;
+ write_unlock_irqrestore(&rdev->fence_lock, irq_flags);
goto retry;
}
return 0;
}
-int radeon_fence_wait_next(struct radeon_device *rdev)
+int radeon_fence_wait_next(struct radeon_device *rdev, int ring)
{
unsigned long irq_flags;
struct radeon_fence *fence;
@@ -294,21 +292,21 @@ int radeon_fence_wait_next(struct radeon_device *rdev)
if (rdev->gpu_lockup) {
return 0;
}
- write_lock_irqsave(&rdev->fence_drv.lock, irq_flags);
- if (list_empty(&rdev->fence_drv.emited)) {
- write_unlock_irqrestore(&rdev->fence_drv.lock, irq_flags);
+ write_lock_irqsave(&rdev->fence_lock, irq_flags);
+ if (list_empty(&rdev->fence_drv[ring].emitted)) {
+ write_unlock_irqrestore(&rdev->fence_lock, irq_flags);
return 0;
}
- fence = list_entry(rdev->fence_drv.emited.next,
+ fence = list_entry(rdev->fence_drv[ring].emitted.next,
struct radeon_fence, list);
radeon_fence_ref(fence);
- write_unlock_irqrestore(&rdev->fence_drv.lock, irq_flags);
+ write_unlock_irqrestore(&rdev->fence_lock, irq_flags);
r = radeon_fence_wait(fence, false);
radeon_fence_unref(&fence);
return r;
}
-int radeon_fence_wait_last(struct radeon_device *rdev)
+int radeon_fence_wait_last(struct radeon_device *rdev, int ring)
{
unsigned long irq_flags;
struct radeon_fence *fence;
@@ -317,15 +315,15 @@ int radeon_fence_wait_last(struct radeon_device *rdev)
if (rdev->gpu_lockup) {
return 0;
}
- write_lock_irqsave(&rdev->fence_drv.lock, irq_flags);
- if (list_empty(&rdev->fence_drv.emited)) {
- write_unlock_irqrestore(&rdev->fence_drv.lock, irq_flags);
+ write_lock_irqsave(&rdev->fence_lock, irq_flags);
+ if (list_empty(&rdev->fence_drv[ring].emitted)) {
+ write_unlock_irqrestore(&rdev->fence_lock, irq_flags);
return 0;
}
- fence = list_entry(rdev->fence_drv.emited.prev,
+ fence = list_entry(rdev->fence_drv[ring].emitted.prev,
struct radeon_fence, list);
radeon_fence_ref(fence);
- write_unlock_irqrestore(&rdev->fence_drv.lock, irq_flags);
+ write_unlock_irqrestore(&rdev->fence_lock, irq_flags);
r = radeon_fence_wait(fence, false);
radeon_fence_unref(&fence);
return r;
@@ -347,39 +345,95 @@ void radeon_fence_unref(struct radeon_fence **fence)
}
}
-void radeon_fence_process(struct radeon_device *rdev)
+void radeon_fence_process(struct radeon_device *rdev, int ring)
{
unsigned long irq_flags;
bool wake;
- write_lock_irqsave(&rdev->fence_drv.lock, irq_flags);
- wake = radeon_fence_poll_locked(rdev);
- write_unlock_irqrestore(&rdev->fence_drv.lock, irq_flags);
+ write_lock_irqsave(&rdev->fence_lock, irq_flags);
+ wake = radeon_fence_poll_locked(rdev, ring);
+ write_unlock_irqrestore(&rdev->fence_lock, irq_flags);
if (wake) {
- wake_up_all(&rdev->fence_drv.queue);
+ wake_up_all(&rdev->fence_drv[ring].queue);
}
}
-int radeon_fence_driver_init(struct radeon_device *rdev)
+int radeon_fence_count_emitted(struct radeon_device *rdev, int ring)
+{
+ unsigned long irq_flags;
+ int not_processed = 0;
+
+ read_lock_irqsave(&rdev->fence_lock, irq_flags);
+ if (!rdev->fence_drv[ring].initialized)
+ return 0;
+
+ if (!list_empty(&rdev->fence_drv[ring].emitted)) {
+ struct list_head *ptr;
+ list_for_each(ptr, &rdev->fence_drv[ring].emitted) {
+ /* count up to 3, that's enought info */
+ if (++not_processed >= 3)
+ break;
+ }
+ }
+ read_unlock_irqrestore(&rdev->fence_lock, irq_flags);
+ return not_processed;
+}
+
+int radeon_fence_driver_start_ring(struct radeon_device *rdev, int ring)
{
unsigned long irq_flags;
+ uint64_t index;
int r;
- write_lock_irqsave(&rdev->fence_drv.lock, irq_flags);
- r = radeon_scratch_get(rdev, &rdev->fence_drv.scratch_reg);
- if (r) {
- dev_err(rdev->dev, "fence failed to get scratch register\n");
- write_unlock_irqrestore(&rdev->fence_drv.lock, irq_flags);
- return r;
+ write_lock_irqsave(&rdev->fence_lock, irq_flags);
+ radeon_scratch_free(rdev, rdev->fence_drv[ring].scratch_reg);
+ if (rdev->wb.use_event) {
+ rdev->fence_drv[ring].scratch_reg = 0;
+ index = R600_WB_EVENT_OFFSET + ring * 4;
+ } else {
+ r = radeon_scratch_get(rdev, &rdev->fence_drv[ring].scratch_reg);
+ if (r) {
+ dev_err(rdev->dev, "fence failed to get scratch register\n");
+ write_unlock_irqrestore(&rdev->fence_lock, irq_flags);
+ return r;
+ }
+ index = RADEON_WB_SCRATCH_OFFSET +
+ rdev->fence_drv[ring].scratch_reg -
+ rdev->scratch.reg_base;
}
- radeon_fence_write(rdev, 0);
- atomic_set(&rdev->fence_drv.seq, 0);
- INIT_LIST_HEAD(&rdev->fence_drv.created);
- INIT_LIST_HEAD(&rdev->fence_drv.emited);
- INIT_LIST_HEAD(&rdev->fence_drv.signaled);
- init_waitqueue_head(&rdev->fence_drv.queue);
- rdev->fence_drv.initialized = true;
- write_unlock_irqrestore(&rdev->fence_drv.lock, irq_flags);
+ rdev->fence_drv[ring].cpu_addr = &rdev->wb.wb[index/4];
+ rdev->fence_drv[ring].gpu_addr = rdev->wb.gpu_addr + index;
+ radeon_fence_write(rdev, atomic_read(&rdev->fence_drv[ring].seq), ring);
+ rdev->fence_drv[ring].initialized = true;
+ DRM_INFO("fence driver on ring %d use gpu addr 0x%08Lx and cpu addr 0x%p\n",
+ ring, rdev->fence_drv[ring].gpu_addr, rdev->fence_drv[ring].cpu_addr);
+ write_unlock_irqrestore(&rdev->fence_lock, irq_flags);
+ return 0;
+}
+
+static void radeon_fence_driver_init_ring(struct radeon_device *rdev, int ring)
+{
+ rdev->fence_drv[ring].scratch_reg = -1;
+ rdev->fence_drv[ring].cpu_addr = NULL;
+ rdev->fence_drv[ring].gpu_addr = 0;
+ atomic_set(&rdev->fence_drv[ring].seq, 0);
+ INIT_LIST_HEAD(&rdev->fence_drv[ring].created);
+ INIT_LIST_HEAD(&rdev->fence_drv[ring].emitted);
+ INIT_LIST_HEAD(&rdev->fence_drv[ring].signaled);
+ init_waitqueue_head(&rdev->fence_drv[ring].queue);
+ rdev->fence_drv[ring].initialized = false;
+}
+
+int radeon_fence_driver_init(struct radeon_device *rdev)
+{
+ unsigned long irq_flags;
+ int ring;
+
+ write_lock_irqsave(&rdev->fence_lock, irq_flags);
+ for (ring = 0; ring < RADEON_NUM_RINGS; ring++) {
+ radeon_fence_driver_init_ring(rdev, ring);
+ }
+ write_unlock_irqrestore(&rdev->fence_lock, irq_flags);
if (radeon_debugfs_fence_init(rdev)) {
dev_err(rdev->dev, "fence debugfs file creation failed\n");
}
@@ -389,14 +443,18 @@ int radeon_fence_driver_init(struct radeon_device *rdev)
void radeon_fence_driver_fini(struct radeon_device *rdev)
{
unsigned long irq_flags;
-
- if (!rdev->fence_drv.initialized)
- return;
- wake_up_all(&rdev->fence_drv.queue);
- write_lock_irqsave(&rdev->fence_drv.lock, irq_flags);
- radeon_scratch_free(rdev, rdev->fence_drv.scratch_reg);
- write_unlock_irqrestore(&rdev->fence_drv.lock, irq_flags);
- rdev->fence_drv.initialized = false;
+ int ring;
+
+ for (ring = 0; ring < RADEON_NUM_RINGS; ring++) {
+ if (!rdev->fence_drv[ring].initialized)
+ continue;
+ radeon_fence_wait_last(rdev, ring);
+ wake_up_all(&rdev->fence_drv[ring].queue);
+ write_lock_irqsave(&rdev->fence_lock, irq_flags);
+ radeon_scratch_free(rdev, rdev->fence_drv[ring].scratch_reg);
+ write_unlock_irqrestore(&rdev->fence_lock, irq_flags);
+ rdev->fence_drv[ring].initialized = false;
+ }
}
@@ -410,14 +468,21 @@ static int radeon_debugfs_fence_info(struct seq_file *m, void *data)
struct drm_device *dev = node->minor->dev;
struct radeon_device *rdev = dev->dev_private;
struct radeon_fence *fence;
-
- seq_printf(m, "Last signaled fence 0x%08X\n",
- radeon_fence_read(rdev));
- if (!list_empty(&rdev->fence_drv.emited)) {
- fence = list_entry(rdev->fence_drv.emited.prev,
- struct radeon_fence, list);
- seq_printf(m, "Last emited fence %p with 0x%08X\n",
- fence, fence->seq);
+ int i;
+
+ for (i = 0; i < RADEON_NUM_RINGS; ++i) {
+ if (!rdev->fence_drv[i].initialized)
+ continue;
+
+ seq_printf(m, "--- ring %d ---\n", i);
+ seq_printf(m, "Last signaled fence 0x%08X\n",
+ radeon_fence_read(rdev, i));
+ if (!list_empty(&rdev->fence_drv[i].emitted)) {
+ fence = list_entry(rdev->fence_drv[i].emitted.prev,
+ struct radeon_fence, list);
+ seq_printf(m, "Last emitted fence %p with 0x%08X\n",
+ fence, fence->seq);
+ }
}
return 0;
}