1 files changed, 12 insertions, 15 deletions

diff --git a/drivers/gpu/drm/radeon/evergreen.c b/drivers/gpu/drm/radeon/evergreen.c
index 4dc5b4714c5a..7b337c361a12 100644
--- a/drivers/gpu/drm/radeon/evergreen.c
+++ b/drivers/gpu/drm/radeon/evergreen.c
@@ -748,6 +748,8 @@ void evergreen_pcie_gart_tlb_flush(struct radeon_device *rdev)
         unsigned i;
         u32 tmp;
 
+        WREG32(HDP_MEM_COHERENCY_FLUSH_CNTL, 0x1);
+
         WREG32(VM_CONTEXT0_REQUEST_RESPONSE, REQUEST_TYPE(1));
         for (i = 0; i < rdev->usec_timeout; i++) {
                 /* read MC_STATUS */
@@ -1922,7 +1924,6 @@ bool evergreen_gpu_is_lockup(struct radeon_device *rdev)
 static int evergreen_gpu_soft_reset(struct radeon_device *rdev)
 {
         struct evergreen_mc_save save;
-        u32 srbm_reset = 0;
         u32 grbm_reset = 0;
 
         dev_info(rdev->dev, "GPU softreset \n");
@@ -1961,16 +1962,6 @@ static int evergreen_gpu_soft_reset(struct radeon_device *rdev)
         udelay(50);
         WREG32(GRBM_SOFT_RESET, 0);
         (void)RREG32(GRBM_SOFT_RESET);
-
-        /* reset all the system blocks */
-        srbm_reset = SRBM_SOFT_RESET_ALL_MASK;
-
-        dev_info(rdev->dev, "  SRBM_SOFT_RESET=0x%08X\n", srbm_reset);
-        WREG32(SRBM_SOFT_RESET, srbm_reset);
-        (void)RREG32(SRBM_SOFT_RESET);
-        udelay(50);
-        WREG32(SRBM_SOFT_RESET, 0);
-        (void)RREG32(SRBM_SOFT_RESET);
         /* Wait a little for things to settle down */
         udelay(50);
         dev_info(rdev->dev, "  GRBM_STATUS=0x%08X\n",
@@ -1981,10 +1972,6 @@ static int evergreen_gpu_soft_reset(struct radeon_device *rdev)
                 RREG32(GRBM_STATUS_SE1));
         dev_info(rdev->dev, "  SRBM_STATUS=0x%08X\n",
                 RREG32(SRBM_STATUS));
-        /* After reset we need to reinit the asic as GPU often endup in an
-         * incoherent state.
-         */
-        atom_asic_init(rdev->mode_info.atom_context);
         evergreen_mc_resume(rdev, &save);
         return 0;
 }
@@ -2596,6 +2583,11 @@ int evergreen_resume(struct radeon_device *rdev)
 {
         int r;
 
+        /* reset the asic, the gfx blocks are often in a bad state
+         * after the driver is unloaded or after a resume
+         */
+        if (radeon_asic_reset(rdev))
+                dev_warn(rdev->dev, "GPU reset failed !\n");
         /* Do not reset GPU before posting, on rv770 hw unlike on r500 hw,
          * posting will perform necessary task to bring back GPU into good
          * shape.
@@ -2712,6 +2704,11 @@ int evergreen_init(struct radeon_device *rdev)
         r = radeon_atombios_init(rdev);
         if (r)
                 return r;
+        /* reset the asic, the gfx blocks are often in a bad state
+         * after the driver is unloaded or after a resume
+         */
+        if (radeon_asic_reset(rdev))
+                dev_warn(rdev->dev, "GPU reset failed !\n");
         /* Post card if necessary */
         if (!evergreen_card_posted(rdev)) {
                 if (!rdev->bios) {