Interrupts on are non-reentrant on linux. This is just an ancient
leftover from radeon where irq processing was kicked of from different
places.
Signed-off-by: Christian König <christian.koe...@amd.com>
---
drivers/gpu/drm/amd/amdgpu/amdgpu_device.c | 1 -
drivers/gpu/drm/amd/amdgpu/amdgpu_ih.c | 5 -----
drivers/gpu/drm/amd/amdgpu/amdgpu_ih.h | 1 -
3 files changed, 7 deletions(-)
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c
b/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c
index a15f1b604733..886625fb464b 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c
@@ -3284,7 +3284,6 @@ int amdgpu_device_init(struct amdgpu_device *adev,
/* mutex initialization are all done here so we
* can recall function without having locking issues */
- atomic_set(&adev->irq.ih.lock, 0);
mutex_init(&adev->firmware.mutex);
mutex_init(&adev->pm.mutex);
mutex_init(&adev->gfx.gpu_clock_mutex);
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_ih.c
b/drivers/gpu/drm/amd/amdgpu/amdgpu_ih.c
index 1024065f1f03..faaa6aa2faaf 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_ih.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_ih.c
@@ -228,10 +228,6 @@ int amdgpu_ih_process(struct amdgpu_device *adev, struct
amdgpu_ih_ring *ih)
wptr = amdgpu_ih_get_wptr(adev, ih);
restart_ih:
- /* is somebody else already processing irqs? */
- if (atomic_xchg(&ih->lock, 1))
- return IRQ_NONE;
-
DRM_DEBUG("%s: rptr %d, wptr %d\n", __func__, ih->rptr, wptr);
/* Order reading of wptr vs. reading of IH ring data */
@@ -244,7 +240,6 @@ int amdgpu_ih_process(struct amdgpu_device *adev, struct
amdgpu_ih_ring *ih)
amdgpu_ih_set_rptr(adev, ih);
wake_up_all(&ih->wait_process);
- atomic_set(&ih->lock, 0);
/* make sure wptr hasn't changed while processing */
wptr = amdgpu_ih_get_wptr(adev, ih);
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_ih.h
b/drivers/gpu/drm/amd/amdgpu/amdgpu_ih.h
index 87ec6d20dbe0..0649b59830a5 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_ih.h
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_ih.h
@@ -64,7 +64,6 @@ struct amdgpu_ih_ring {
bool enabled;
unsigned rptr;
- atomic_t lock;
struct amdgpu_ih_regs ih_regs;
/* For waiting on IH processing at checkpoint. */
--
2.25.1
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