drm/radeon: update rptr saving logic for memory buffers

[firefly-linux-kernel-4.4.55.git] / drivers / gpu / drm / radeon / radeon.h

diff --git a/drivers/gpu/drm/radeon/radeon.h b/drivers/gpu/drm/radeon/radeon.h
index be454725c377d44dacbbe303d0894030375c9008..5431af2924083676e7f017d13d2f32a4b9cc1aca 100644 (file)
--- a/drivers/gpu/drm/radeon/radeon.h
+++ b/drivers/gpu/drm/radeon/radeon.h
@@ -623,6 +623,8 @@ struct radeon_ring {
        unsigned                rptr_offs;
        unsigned                rptr_reg;
        unsigned                rptr_save_reg;
+       u64                     next_rptr_gpu_addr;
+       volatile u32            *next_rptr_cpu_addr;
        unsigned                wptr;
        unsigned                wptr_old;
        unsigned                wptr_reg;
@@ -758,6 +760,8 @@ int radeon_ib_pool_init(struct radeon_device *rdev);
 void radeon_ib_pool_fini(struct radeon_device *rdev);
 int radeon_ib_ring_tests(struct radeon_device *rdev);
 /* Ring access between begin & end cannot sleep */
+bool radeon_ring_supports_scratch_reg(struct radeon_device *rdev,
+                                     struct radeon_ring *ring);
 void radeon_ring_free_size(struct radeon_device *rdev, struct radeon_ring *cp);
 int radeon_ring_alloc(struct radeon_device *rdev, struct radeon_ring *cp, unsigned ndw);
 int radeon_ring_lock(struct radeon_device *rdev, struct radeon_ring *cp, unsigned ndw);
@@ -871,6 +875,7 @@ struct radeon_wb {
 };
 
 #define RADEON_WB_SCRATCH_OFFSET 0
+#define RADEON_WB_RING0_NEXT_RPTR 256
 #define RADEON_WB_CP_RPTR_OFFSET 1024
 #define RADEON_WB_CP1_RPTR_OFFSET 1280
 #define RADEON_WB_CP2_RPTR_OFFSET 1536