drm/amdgpu: Move kiq ring lock out of virt structure

The usage of kiq should not depend on the virtualization.
Signed-off-by: Shaoyun Liu <Shaoyun.Liu@amd.com>
Reviewed-by: Andres Rodriquez <andresx7@gmail.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

drivers/gpu/drm/amd/amdgpu/amdgpu.h

@@ -907,6 +907,7 @@ struct amdgpu_mec {
 struct amdgpu_kiq {
 	u64			eop_gpu_addr;
 	struct amdgpu_bo	*eop_obj;
+	struct mutex		ring_mutex;
 	struct amdgpu_ring	ring;
 	struct amdgpu_irq_src	irq;
 };

drivers/gpu/drm/amd/amdgpu/amdgpu_virt.c

@@ -108,7 +108,6 @@ void amdgpu_virt_init_setting(struct amdgpu_device *adev)
 	adev->cg_flags = 0;
 	adev->pg_flags = 0;
 
-	mutex_init(&adev->virt.lock_kiq);
 	mutex_init(&adev->virt.lock_reset);
 }
 
@@ -122,12 +121,12 @@ uint32_t amdgpu_virt_kiq_rreg(struct amdgpu_device *adev, uint32_t reg)
 
 	BUG_ON(!ring->funcs->emit_rreg);
 
-	mutex_lock(&adev->virt.lock_kiq);
+	mutex_lock(&kiq->ring_mutex);
 	amdgpu_ring_alloc(ring, 32);
 	amdgpu_ring_emit_rreg(ring, reg);
 	amdgpu_fence_emit(ring, &f);
 	amdgpu_ring_commit(ring);
-	mutex_unlock(&adev->virt.lock_kiq);
+	mutex_unlock(&kiq->ring_mutex);
 
 	r = dma_fence_wait(f, false);
 	if (r)
@@ -148,12 +147,12 @@ void amdgpu_virt_kiq_wreg(struct amdgpu_device *adev, uint32_t reg, uint32_t v)
 
 	BUG_ON(!ring->funcs->emit_wreg);
 
-	mutex_lock(&adev->virt.lock_kiq);
+	mutex_lock(&kiq->ring_mutex);
 	amdgpu_ring_alloc(ring, 32);
 	amdgpu_ring_emit_wreg(ring, reg, v);
 	amdgpu_fence_emit(ring, &f);
 	amdgpu_ring_commit(ring);
-	mutex_unlock(&adev->virt.lock_kiq);
+	mutex_unlock(&kiq->ring_mutex);
 
 	r = dma_fence_wait(f, false);
 	if (r)

drivers/gpu/drm/amd/amdgpu/amdgpu_virt.h

@@ -52,7 +52,6 @@ struct amdgpu_virt {
 	uint64_t			csa_vmid0_addr;
 	bool chained_ib_support;
 	uint32_t			reg_val_offs;
-	struct mutex			lock_kiq;
 	struct mutex                    lock_reset;
 	struct amdgpu_irq_src		ack_irq;
 	struct amdgpu_irq_src		rcv_irq;

drivers/gpu/drm/amd/amdgpu/gfx_v8_0.c

@@ -1385,6 +1385,8 @@ static int gfx_v8_0_kiq_init_ring(struct amdgpu_device *adev,
 	struct amdgpu_kiq *kiq = &adev->gfx.kiq;
 	int r = 0;
 
+	mutex_init(&kiq->ring_mutex);
+
 	r = amdgpu_wb_get(adev, &adev->virt.reg_val_offs);
 	if (r)
 		return r;

drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c

@@ -614,6 +614,8 @@ static int gfx_v9_0_kiq_init_ring(struct amdgpu_device *adev,
 	struct amdgpu_kiq *kiq = &adev->gfx.kiq;
 	int r = 0;
 
+	mutex_init(&kiq->ring_mutex);
+
 	r = amdgpu_wb_get(adev, &adev->virt.reg_val_offs);
 	if (r)
 		return r;