drm/radeon: rework the vm_flush interface

Pass the vm and ring index rather than an IB.  This allows
us to use the vm_flush interface for non-IB cases in the
future.

Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>

drivers/gpu/drm/radeon/ni.c

@@ -1565,10 +1565,9 @@ void cayman_vm_set_page(struct radeon_device *rdev, uint64_t pe,
  * Update the page table base and flush the VM TLB
  * using the CP (cayman-si).
  */
-void cayman_vm_flush(struct radeon_device *rdev, struct radeon_ib *ib)
+void cayman_vm_flush(struct radeon_device *rdev, int ridx, struct radeon_vm *vm)
 {
-	struct radeon_ring *ring = &rdev->ring[ib->ring];
-	struct radeon_vm *vm = ib->vm;
+	struct radeon_ring *ring = &rdev->ring[ridx];
 
 	if (vm == NULL)
 		return;
@@ -1588,5 +1587,5 @@ void cayman_vm_flush(struct radeon_device *rdev, struct radeon_ib *ib)
 
 	/* bits 0-7 are the VM contexts0-7 */
 	radeon_ring_write(ring, PACKET0(VM_INVALIDATE_REQUEST, 0));
-	radeon_ring_write(ring, 1 << ib->vm->id);
+	radeon_ring_write(ring, 1 << vm->id);
 }

drivers/gpu/drm/radeon/radeon.h

@@ -1165,7 +1165,7 @@ struct radeon_asic {
 		int (*ring_test)(struct radeon_device *rdev, struct radeon_ring *cp);
 		int (*ib_test)(struct radeon_device *rdev, struct radeon_ring *cp);
 		bool (*is_lockup)(struct radeon_device *rdev, struct radeon_ring *cp);
-		void (*vm_flush)(struct radeon_device *rdev, struct radeon_ib *ib);
+		void (*vm_flush)(struct radeon_device *rdev, int ridx, struct radeon_vm *vm);
 	} ring[RADEON_NUM_RINGS];
 	/* irqs */
 	struct {
@@ -1772,7 +1772,7 @@ void radeon_ring_write(struct radeon_ring *ring, uint32_t v);
 #define radeon_ring_ib_execute(rdev, r, ib) (rdev)->asic->ring[(r)].ib_execute((rdev), (ib))
 #define radeon_ring_ib_parse(rdev, r, ib) (rdev)->asic->ring[(r)].ib_parse((rdev), (ib))
 #define radeon_ring_is_lockup(rdev, r, cp) (rdev)->asic->ring[(r)].is_lockup((rdev), (cp))
-#define radeon_ring_vm_flush(rdev, r, ib) (rdev)->asic->ring[(r)].vm_flush((rdev), (ib))
+#define radeon_ring_vm_flush(rdev, r, vm) (rdev)->asic->ring[(r)].vm_flush((rdev), (r), (vm))
 #define radeon_irq_set(rdev) (rdev)->asic->irq.set((rdev))
 #define radeon_irq_process(rdev) (rdev)->asic->irq.process((rdev))
 #define radeon_get_vblank_counter(rdev, crtc) (rdev)->asic->display.get_vblank_counter((rdev), (crtc))

drivers/gpu/drm/radeon/radeon_asic.h

@@ -443,7 +443,7 @@ int cayman_asic_reset(struct radeon_device *rdev);
 void cayman_ring_ib_execute(struct radeon_device *rdev, struct radeon_ib *ib);
 int cayman_vm_init(struct radeon_device *rdev);
 void cayman_vm_fini(struct radeon_device *rdev);
-void cayman_vm_flush(struct radeon_device *rdev, struct radeon_ib *ib);
+void cayman_vm_flush(struct radeon_device *rdev, int ridx, struct radeon_vm *vm);
 uint32_t cayman_vm_page_flags(struct radeon_device *rdev, uint32_t flags);
 void cayman_vm_set_page(struct radeon_device *rdev, uint64_t pe,
 			uint64_t addr, unsigned count,
@@ -470,7 +470,7 @@ int si_irq_set(struct radeon_device *rdev);
 int si_irq_process(struct radeon_device *rdev);
 int si_vm_init(struct radeon_device *rdev);
 void si_vm_fini(struct radeon_device *rdev);
-void si_vm_flush(struct radeon_device *rdev, struct radeon_ib *ib);
+void si_vm_flush(struct radeon_device *rdev, int ridx, struct radeon_vm *vm);
 int si_ib_parse(struct radeon_device *rdev, struct radeon_ib *ib);
 uint64_t si_get_gpu_clock(struct radeon_device *rdev);
 

drivers/gpu/drm/radeon/radeon_ring.c

@@ -162,7 +162,7 @@ int radeon_ib_schedule(struct radeon_device *rdev, struct radeon_ib *ib,
 	}
 	/* if we can't remember our last VM flush then flush now! */
 	if (ib->vm && !ib->vm->last_flush) {
-		radeon_ring_vm_flush(rdev, ib->ring, ib);
+		radeon_ring_vm_flush(rdev, ib->ring, ib->vm);
 	}
 	if (const_ib) {
 		radeon_ring_ib_execute(rdev, const_ib->ring, const_ib);

drivers/gpu/drm/radeon/si.c

@@ -2789,10 +2789,9 @@ void si_vm_fini(struct radeon_device *rdev)
 {
 }
 
-void si_vm_flush(struct radeon_device *rdev, struct radeon_ib *ib)
+void si_vm_flush(struct radeon_device *rdev, int ridx, struct radeon_vm *vm)
 {
-	struct radeon_ring *ring = &rdev->ring[ib->ring];
-	struct radeon_vm *vm = ib->vm;
+	struct radeon_ring *ring = &rdev->ring[ridx];
 
 	if (vm == NULL)
 		return;
@@ -2826,7 +2825,7 @@ void si_vm_flush(struct radeon_device *rdev, struct radeon_ib *ib)
 				 WRITE_DATA_DST_SEL(0)));
 	radeon_ring_write(ring, VM_INVALIDATE_REQUEST >> 2);
 	radeon_ring_write(ring, 0);
-	radeon_ring_write(ring, 1 << ib->vm->id);
+	radeon_ring_write(ring, 1 << vm->id);
 }
 
 /*