[PATCH] drm/radeon: Allow setting shader registers using DMA/COPY packet3 on SI.

[Bas Nieuwenhuizen]

Signed-off-by: Bas Nieuwenhuizen <bas at basnieuwenhuizen.nl>
---

 I don't have the right hardware, so this is only compile tested.

 drivers/gpu/drm/radeon/radeon_drv.c | 3 ++-
 drivers/gpu/drm/radeon/si.c         | 4 ++++
 2 files changed, 6 insertions(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/radeon/radeon_drv.c 
b/drivers/gpu/drm/radeon/radeon_drv.c
index 1f96b04..7090d9f 100644
--- a/drivers/gpu/drm/radeon/radeon_drv.c
+++ b/drivers/gpu/drm/radeon/radeon_drv.c
@@ -94,9 +94,10 @@
  *   2.42.0 - Add VCE/VUI (Video Usability Information) support
  *   2.43.0 - RADEON_INFO_GPU_RESET_COUNTER
  *   2.44.0 - SET_APPEND_CNT packet3 support
+ *   2.45.0 - Allow setting shader registers using DMA/COPY packet3 on SI
  */
 #define KMS_DRIVER_MAJOR       2
-#define KMS_DRIVER_MINOR       44
+#define KMS_DRIVER_MINOR       45
 #define KMS_DRIVER_PATCHLEVEL  0
 int radeon_driver_load_kms(struct drm_device *dev, unsigned long flags);
 int radeon_driver_unload_kms(struct drm_device *dev);
diff --git a/drivers/gpu/drm/radeon/si.c b/drivers/gpu/drm/radeon/si.c
index 7afe825..b30e719 100644
--- a/drivers/gpu/drm/radeon/si.c
+++ b/drivers/gpu/drm/radeon/si.c
@@ -4364,6 +4364,10 @@ static bool si_vm_reg_valid(u32 reg)
        if (reg >= 0x28000)
                return true;

+       /* shader regs are also fine */
+       if (reg >= 0xB000 && reg < 0xC000)
+               return true;
+
        /* check config regs */
        switch (reg) {
        case GRBM_GFX_INDEX:
-- 
2.8.0