drm/radeon: add GPU reset flags

The idea here is to move to a finer grained reset.
In some cases we may not need reset every block, and
in other cases we may not need to re-init the entire
asic.

Reviewed-by: Jerome Glisse <jglisse@redhat.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

diff --git a/drivers/gpu/drm/radeon/radeon.h b/drivers/gpu/drm/radeon/radeon.h
index 9b9422c4403a40280e1a16af91e79b820fadad58..34e52304a525001de8bba62d71278ae939edfda9 100644 (file)
--- a/drivers/gpu/drm/radeon/radeon.h
+++ b/drivers/gpu/drm/radeon/radeon.h
@@ -132,6 +132,11 @@ extern int radeon_lockup_timeout;
 #define RADEON_VA_RESERVED_SIZE                        (8 << 20)
 #define RADEON_IB_VM_MAX_SIZE                  (64 << 10)
 
+/* reset flags */
+#define RADEON_RESET_GFX                       (1 << 0)
+#define RADEON_RESET_COMPUTE                   (1 << 1)
+#define RADEON_RESET_DMA                       (1 << 2)
+
 /*
  * Errata workarounds.
  */