update drm to linux 5.7

adds kernel support for
amdgpu:		vega20, raven2, renoir, navi10, navi14
inteldrm:	icelake, tigerlake

Thanks to the OpenBSD Foundation for sponsoring this work, kettenis@ for
helping, patrick@ for helping adapt rockchip drm and many developers for
testing.

1 files changed, 61 insertions, 24 deletions

diff --git a/sys/dev/pci/drm/amd/amdgpu/amdgpu_fence.c b/sys/dev/pci/drm/amd/amdgpu/amdgpu_fence.c
index 9234e9d8b1e..495138ff339 100644
--- a/sys/dev/pci/drm/amd/amdgpu/amdgpu_fence.c
+++ b/sys/dev/pci/drm/amd/amdgpu/amdgpu_fence.c
@@ -34,7 +34,10 @@
 #include <linux/kref.h>
 #include <linux/slab.h>
 #include <linux/firmware.h>
-#include <drm/drmP.h>
+#include <linux/pm_runtime.h>
+
+#include <drm/drm_debugfs.h>
+
 #include "amdgpu.h"
 #include "amdgpu_trace.h"
 
@@ -165,7 +168,7 @@ int amdgpu_fence_emit(struct amdgpu_ring *ring, struct dma_fence **f,
 		       seq);
 	amdgpu_ring_emit_fence(ring, ring->fence_drv.gpu_addr,
 			       seq, flags | AMDGPU_FENCE_FLAG_INT);
-
+	pm_runtime_get_noresume(adev->ddev->dev);
 	ptr = &ring->fence_drv.fences[seq & ring->fence_drv.num_fences_mask];
 	if (unlikely(rcu_dereference_protected(*ptr, 1))) {
 		struct dma_fence *old;
@@ -239,10 +242,13 @@ static void amdgpu_fence_schedule_fallback(struct amdgpu_ring *ring)
  * Checks the current fence value and calculates the last
  * signalled fence value. Wakes the fence queue if the
  * sequence number has increased.
+ *
+ * Returns true if fence was processed
  */
-void amdgpu_fence_process(struct amdgpu_ring *ring)
+bool amdgpu_fence_process(struct amdgpu_ring *ring)
 {
 	struct amdgpu_fence_driver *drv = &ring->fence_drv;
+	struct amdgpu_device *adev = ring->adev;
 	uint32_t seq, last_seq;
 	int r;
 
@@ -252,11 +258,12 @@ void amdgpu_fence_process(struct amdgpu_ring *ring)
 
 	} while (atomic_cmpxchg(&drv->last_seq, last_seq, seq) != last_seq);
 
-	if (seq != ring->fence_drv.sync_seq)
+	if (del_timer(&ring->fence_drv.fallback_timer) &&
+	    seq != ring->fence_drv.sync_seq)
 		amdgpu_fence_schedule_fallback(ring);
 
 	if (unlikely(seq == last_seq))
-		return;
+		return false;
 
 	last_seq &= drv->num_fences_mask;
 	seq &= drv->num_fences_mask;
@@ -282,7 +289,11 @@ void amdgpu_fence_process(struct amdgpu_ring *ring)
 			BUG();
 
 		dma_fence_put(fence);
+		pm_runtime_mark_last_busy(adev->ddev->dev);
+		pm_runtime_put_autosuspend(adev->ddev->dev);
 	} while (last_seq != seq);
+
+	return true;
 }
 
 /**
@@ -296,7 +307,8 @@ static void amdgpu_fence_fallback(void *arg)
 {
 	struct amdgpu_ring *ring = arg;
 
-	amdgpu_fence_process(ring);
+	if (amdgpu_fence_process(ring))
+		DRM_WARN("Fence fallback timer expired on ring %s\n", ring->name);
 }
 
 /**
@@ -414,9 +426,9 @@ int amdgpu_fence_driver_start_ring(struct amdgpu_ring *ring,
 	ring->fence_drv.irq_type = irq_type;
 	ring->fence_drv.initialized = true;
 
-	dev_dbg(adev->dev, "fence driver on ring %d use gpu addr 0x%016llx, "
-		"cpu addr 0x%p\n", ring->idx,
-		ring->fence_drv.gpu_addr, ring->fence_drv.cpu_addr);
+	DRM_DEV_DEBUG(adev->dev, "fence driver on ring %s use gpu addr "
+		      "0x%016llx, cpu addr 0x%p\n", ring->name,
+		      ring->fence_drv.gpu_addr, ring->fence_drv.cpu_addr);
 	return 0;
 }
 
@@ -433,9 +445,13 @@ int amdgpu_fence_driver_start_ring(struct amdgpu_ring *ring,
 int amdgpu_fence_driver_init_ring(struct amdgpu_ring *ring,
 				  unsigned num_hw_submission)
 {
+	struct amdgpu_device *adev = ring->adev;
 	long timeout;
 	int r;
 
+	if (!adev)
+		return -EINVAL;
+
 	/* Check that num_hw_submission is a power of two */
 	if ((num_hw_submission & (num_hw_submission - 1)) != 0)
 		return -EINVAL;
@@ -462,12 +478,20 @@ int amdgpu_fence_driver_init_ring(struct amdgpu_ring *ring,
 
 	/* No need to setup the GPU scheduler for KIQ ring */
 	if (ring->funcs->type != AMDGPU_RING_TYPE_KIQ) {
-		/* for non-sriov case, no timeout enforce on compute ring */
-		if ((ring->funcs->type == AMDGPU_RING_TYPE_COMPUTE)
-				&& !amdgpu_sriov_vf(ring->adev))
-			timeout = MAX_SCHEDULE_TIMEOUT;
-		else
-			timeout = msecs_to_jiffies(amdgpu_lockup_timeout);
+		switch (ring->funcs->type) {
+		case AMDGPU_RING_TYPE_GFX:
+			timeout = adev->gfx_timeout;
+			break;
+		case AMDGPU_RING_TYPE_COMPUTE:
+			timeout = adev->compute_timeout;
+			break;
+		case AMDGPU_RING_TYPE_SDMA:
+			timeout = adev->sdma_timeout;
+			break;
+		default:
+			timeout = adev->video_timeout;
+			break;
+		}
 
 		r = drm_sched_init(&ring->sched, &amdgpu_sched_ops,
 				   num_hw_submission, amdgpu_job_hang_limit,
@@ -496,9 +520,6 @@ int amdgpu_fence_driver_init_ring(struct amdgpu_ring *ring,
  */
 int amdgpu_fence_driver_init(struct amdgpu_device *adev)
 {
-	if (amdgpu_debugfs_fence_init(adev))
-		dev_err(adev->dev, "fence debugfs file creation failed\n");
-
 	return 0;
 }
 
@@ -699,22 +720,30 @@ static int amdgpu_debugfs_fence_info(struct seq_file *m, void *data)
 		amdgpu_fence_process(ring);
 
 		seq_printf(m, "--- ring %d (%s) ---\n", i, ring->name);
-		seq_printf(m, "Last signaled fence 0x%08x\n",
+		seq_printf(m, "Last signaled fence          0x%08x\n",
 			   atomic_read(&ring->fence_drv.last_seq));
-		seq_printf(m, "Last emitted        0x%08x\n",
+		seq_printf(m, "Last emitted                 0x%08x\n",
 			   ring->fence_drv.sync_seq);
 
+		if (ring->funcs->type == AMDGPU_RING_TYPE_GFX ||
+		    ring->funcs->type == AMDGPU_RING_TYPE_SDMA) {
+			seq_printf(m, "Last signaled trailing fence 0x%08x\n",
+				   le32_to_cpu(*ring->trail_fence_cpu_addr));
+			seq_printf(m, "Last emitted                 0x%08x\n",
+				   ring->trail_seq);
+		}
+
 		if (ring->funcs->type != AMDGPU_RING_TYPE_GFX)
 			continue;
 
 		/* set in CP_VMID_PREEMPT and preemption occurred */
-		seq_printf(m, "Last preempted      0x%08x\n",
+		seq_printf(m, "Last preempted               0x%08x\n",
 			   le32_to_cpu(*(ring->fence_drv.cpu_addr + 2)));
 		/* set in CP_VMID_RESET and reset occurred */
-		seq_printf(m, "Last reset          0x%08x\n",
+		seq_printf(m, "Last reset                   0x%08x\n",
 			   le32_to_cpu(*(ring->fence_drv.cpu_addr + 4)));
 		/* Both preemption and reset occurred */
-		seq_printf(m, "Last both           0x%08x\n",
+		seq_printf(m, "Last both                    0x%08x\n",
 			   le32_to_cpu(*(ring->fence_drv.cpu_addr + 6)));
 	}
 	return 0;
@@ -730,9 +759,17 @@ static int amdgpu_debugfs_gpu_recover(struct seq_file *m, void *data)
 	struct drm_info_node *node = (struct drm_info_node *) m->private;
 	struct drm_device *dev = node->minor->dev;
 	struct amdgpu_device *adev = dev->dev_private;
+	int r;
+
+	r = pm_runtime_get_sync(dev->dev);
+	if (r < 0)
+		return 0;
 
 	seq_printf(m, "gpu recover\n");
-	amdgpu_device_gpu_recover(adev, NULL, true);
+	amdgpu_device_gpu_recover(adev, NULL);
+
+	pm_runtime_mark_last_busy(dev->dev);
+	pm_runtime_put_autosuspend(dev->dev);
 
 	return 0;
 }