diff options
Diffstat (limited to 'drivers/gpu/drm/i915/i915_sw_fence.c')
| -rw-r--r-- | drivers/gpu/drm/i915/i915_sw_fence.c | 69 |
1 files changed, 53 insertions, 16 deletions
diff --git a/drivers/gpu/drm/i915/i915_sw_fence.c b/drivers/gpu/drm/i915/i915_sw_fence.c index 5387aafd3424..51ba97daf2a0 100644 --- a/drivers/gpu/drm/i915/i915_sw_fence.c +++ b/drivers/gpu/drm/i915/i915_sw_fence.c @@ -7,11 +7,17 @@ #include <linux/slab.h> #include <linux/dma-fence.h> #include <linux/irq_work.h> -#include <linux/reservation.h> +#include <linux/dma-resv.h> #include "i915_sw_fence.h" #include "i915_selftest.h" +#if IS_ENABLED(CONFIG_DRM_I915_DEBUG) +#define I915_SW_FENCE_BUG_ON(expr) BUG_ON(expr) +#else +#define I915_SW_FENCE_BUG_ON(expr) BUILD_BUG_ON_INVALID(expr) +#endif + #define I915_SW_FENCE_FLAG_ALLOC BIT(3) /* after WQ_FLAG_* for safety */ static DEFINE_SPINLOCK(i915_sw_fence_lock); @@ -157,8 +163,11 @@ static void __i915_sw_fence_wake_up_all(struct i915_sw_fence *fence, LIST_HEAD(extra); do { - list_for_each_entry_safe(pos, next, &x->head, entry) - pos->func(pos, TASK_NORMAL, 0, &extra); + list_for_each_entry_safe(pos, next, &x->head, entry) { + pos->func(pos, + TASK_NORMAL, fence->error, + &extra); + } if (list_empty(&extra)) break; @@ -215,11 +224,21 @@ void __i915_sw_fence_init(struct i915_sw_fence *fence, { BUG_ON(!fn || (unsigned long)fn & ~I915_SW_FENCE_MASK); + __init_waitqueue_head(&fence->wait, name, key); + fence->flags = (unsigned long)fn; + + i915_sw_fence_reinit(fence); +} + +void i915_sw_fence_reinit(struct i915_sw_fence *fence) +{ debug_fence_init(fence); - __init_waitqueue_head(&fence->wait, name, key); atomic_set(&fence->pending, 1); - fence->flags = (unsigned long)fn; + fence->error = 0; + + I915_SW_FENCE_BUG_ON(!fence->flags); + I915_SW_FENCE_BUG_ON(!list_empty(&fence->wait.head)); } void i915_sw_fence_commit(struct i915_sw_fence *fence) @@ -230,6 +249,8 @@ void i915_sw_fence_commit(struct i915_sw_fence *fence) static int i915_sw_fence_wake(wait_queue_entry_t *wq, unsigned mode, int flags, void *key) { + i915_sw_fence_set_error_once(wq->private, flags); + list_del(&wq->entry); __i915_sw_fence_complete(wq->private, key); @@ -302,8 +323,10 @@ static int __i915_sw_fence_await_sw_fence(struct i915_sw_fence *fence, debug_fence_assert(fence); might_sleep_if(gfpflags_allow_blocking(gfp)); - if (i915_sw_fence_done(signaler)) + if (i915_sw_fence_done(signaler)) { + i915_sw_fence_set_error_once(fence, signaler->error); return 0; + } debug_fence_assert(signaler); @@ -319,6 +342,7 @@ static int __i915_sw_fence_await_sw_fence(struct i915_sw_fence *fence, return -ENOMEM; i915_sw_fence_wait(signaler); + i915_sw_fence_set_error_once(fence, signaler->error); return 0; } @@ -337,7 +361,7 @@ static int __i915_sw_fence_await_sw_fence(struct i915_sw_fence *fence, __add_wait_queue_entry_tail(&signaler->wait, wq); pending = 1; } else { - i915_sw_fence_wake(wq, 0, 0, NULL); + i915_sw_fence_wake(wq, 0, signaler->error, NULL); pending = 0; } spin_unlock_irqrestore(&signaler->wait.lock, flags); @@ -372,6 +396,7 @@ static void dma_i915_sw_fence_wake(struct dma_fence *dma, { struct i915_sw_dma_fence_cb *cb = container_of(data, typeof(*cb), base); + i915_sw_fence_set_error_once(cb->fence, dma->error); i915_sw_fence_complete(cb->fence); kfree(cb); } @@ -391,6 +416,7 @@ static void timer_i915_sw_fence_wake(struct timer_list *t) cb->dma->seqno, i915_sw_fence_debug_hint(fence)); + i915_sw_fence_set_error_once(fence, -ETIMEDOUT); i915_sw_fence_complete(fence); } @@ -402,8 +428,10 @@ static void dma_i915_sw_fence_wake_timer(struct dma_fence *dma, struct i915_sw_fence *fence; fence = xchg(&cb->base.fence, NULL); - if (fence) + if (fence) { + i915_sw_fence_set_error_once(fence, dma->error); i915_sw_fence_complete(fence); + } irq_work_queue(&cb->work); } @@ -431,8 +459,10 @@ int i915_sw_fence_await_dma_fence(struct i915_sw_fence *fence, debug_fence_assert(fence); might_sleep_if(gfpflags_allow_blocking(gfp)); - if (dma_fence_is_signaled(dma)) + if (dma_fence_is_signaled(dma)) { + i915_sw_fence_set_error_once(fence, dma->error); return 0; + } cb = kmalloc(timeout ? sizeof(struct i915_sw_dma_fence_cb_timer) : @@ -442,7 +472,12 @@ int i915_sw_fence_await_dma_fence(struct i915_sw_fence *fence, if (!gfpflags_allow_blocking(gfp)) return -ENOMEM; - return dma_fence_wait(dma, false); + ret = dma_fence_wait(dma, false); + if (ret) + return ret; + + i915_sw_fence_set_error_once(fence, dma->error); + return 0; } cb->fence = fence; @@ -480,6 +515,7 @@ static void __dma_i915_sw_fence_wake(struct dma_fence *dma, { struct i915_sw_dma_fence_cb *cb = container_of(data, typeof(*cb), base); + i915_sw_fence_set_error_once(cb->fence, dma->error); i915_sw_fence_complete(cb->fence); } @@ -491,8 +527,10 @@ int __i915_sw_fence_await_dma_fence(struct i915_sw_fence *fence, debug_fence_assert(fence); - if (dma_fence_is_signaled(dma)) + if (dma_fence_is_signaled(dma)) { + i915_sw_fence_set_error_once(fence, dma->error); return 0; + } cb->fence = fence; i915_sw_fence_await(fence); @@ -501,7 +539,7 @@ int __i915_sw_fence_await_dma_fence(struct i915_sw_fence *fence, if (ret == 0) { ret = 1; } else { - i915_sw_fence_complete(fence); + __dma_i915_sw_fence_wake(dma, &cb->base); if (ret == -ENOENT) /* fence already signaled */ ret = 0; } @@ -510,7 +548,7 @@ int __i915_sw_fence_await_dma_fence(struct i915_sw_fence *fence, } int i915_sw_fence_await_reservation(struct i915_sw_fence *fence, - struct reservation_object *resv, + struct dma_resv *resv, const struct dma_fence_ops *exclude, bool write, unsigned long timeout, @@ -526,8 +564,7 @@ int i915_sw_fence_await_reservation(struct i915_sw_fence *fence, struct dma_fence **shared; unsigned int count, i; - ret = reservation_object_get_fences_rcu(resv, - &excl, &count, &shared); + ret = dma_resv_get_fences_rcu(resv, &excl, &count, &shared); if (ret) return ret; @@ -551,7 +588,7 @@ int i915_sw_fence_await_reservation(struct i915_sw_fence *fence, dma_fence_put(shared[i]); kfree(shared); } else { - excl = reservation_object_get_excl_rcu(resv); + excl = dma_resv_get_excl_rcu(resv); } if (ret >= 0 && excl && excl->ops != exclude) { |
