From: Alex Deucher <alexander.deucher@xxxxxxx>
No change in functionality as we currently set all the reset
flags.
Signed-off-by: Alex Deucher <alexander.deucher@xxxxxxx>
---
drivers/gpu/drm/radeon/ni.c | 109 +++++++++++++++++++++++++++---------------
1 files changed, 70 insertions(+), 39 deletions(-)
diff --git a/drivers/gpu/drm/radeon/ni.c b/drivers/gpu/drm/radeon/ni.c
index 8a9a75d..896f1cb 100644
--- a/drivers/gpu/drm/radeon/ni.c
+++ b/drivers/gpu/drm/radeon/ni.c
@@ -1306,15 +1306,13 @@ void cayman_dma_fini(struct radeon_device *rdev)
radeon_ring_fini(rdev, &rdev->ring[CAYMAN_RING_TYPE_DMA1_INDEX]);
}
-static int cayman_gpu_soft_reset(struct radeon_device *rdev)
+static void cayman_gpu_soft_reset_gfx(struct radeon_device *rdev)
{
- struct evergreen_mc_save save;
- u32 grbm_reset = 0, tmp;
+ u32 grbm_reset = 0;
if (!(RREG32(GRBM_STATUS) & GUI_ACTIVE))
- return 0;
+ return;
- dev_info(rdev->dev, "GPU softreset \n");
dev_info(rdev->dev, " GRBM_STATUS = 0x%08X\n",
RREG32(GRBM_STATUS));
dev_info(rdev->dev, " GRBM_STATUS_SE0 = 0x%08X\n",
@@ -1331,41 +1329,10 @@ static int cayman_gpu_soft_reset(struct radeon_device *rdev)
RREG32(CP_BUSY_STAT));
dev_info(rdev->dev, " R_008680_CP_STAT = 0x%08X\n",
RREG32(CP_STAT));
- dev_info(rdev->dev, " R_00D034_DMA_STATUS_REG = 0x%08X\n",
- RREG32(DMA_STATUS_REG));
- dev_info(rdev->dev, " VM_CONTEXT0_PROTECTION_FAULT_ADDR 0x%08X\n",
- RREG32(0x14F8));
- dev_info(rdev->dev, " VM_CONTEXT0_PROTECTION_FAULT_STATUS 0x%08X\n",
- RREG32(0x14D8));
- dev_info(rdev->dev, " VM_CONTEXT1_PROTECTION_FAULT_ADDR 0x%08X\n",
- RREG32(0x14FC));
- dev_info(rdev->dev, " VM_CONTEXT1_PROTECTION_FAULT_STATUS 0x%08X\n",
- RREG32(0x14DC));
-
- evergreen_mc_stop(rdev, &save);
- if (evergreen_mc_wait_for_idle(rdev)) {
- dev_warn(rdev->dev, "Wait for MC idle timedout !\n");
- }
/* Disable CP parsing/prefetching */
WREG32(CP_ME_CNTL, CP_ME_HALT | CP_PFP_HALT);
- /* dma0 */
- tmp = RREG32(DMA_RB_CNTL + DMA0_REGISTER_OFFSET);
- tmp &= ~DMA_RB_ENABLE;
- WREG32(DMA_RB_CNTL + DMA0_REGISTER_OFFSET, tmp);
-
- /* dma1 */
- tmp = RREG32(DMA_RB_CNTL + DMA1_REGISTER_OFFSET);
- tmp &= ~DMA_RB_ENABLE;
- WREG32(DMA_RB_CNTL + DMA1_REGISTER_OFFSET, tmp);
-
- /* Reset dma */
- WREG32(SRBM_SOFT_RESET, SOFT_RESET_DMA | SOFT_RESET_DMA1);
- RREG32(SRBM_SOFT_RESET);
- udelay(50);
- WREG32(SRBM_SOFT_RESET, 0);
-
/* reset all the gfx blocks */
grbm_reset = (SOFT_RESET_CP |
SOFT_RESET_CB |
@@ -1387,8 +1354,6 @@ static int cayman_gpu_soft_reset(struct radeon_device *rdev)
udelay(50);
WREG32(GRBM_SOFT_RESET, 0);
(void)RREG32(GRBM_SOFT_RESET);
- /* Wait a little for things to settle down */
- udelay(50);
dev_info(rdev->dev, " GRBM_STATUS = 0x%08X\n",
RREG32(GRBM_STATUS));
@@ -1406,15 +1371,81 @@ static int cayman_gpu_soft_reset(struct radeon_device *rdev)
RREG32(CP_BUSY_STAT));
dev_info(rdev->dev, " R_008680_CP_STAT = 0x%08X\n",
RREG32(CP_STAT));
+
+}
+
+static void cayman_gpu_soft_reset_dma(struct radeon_device *rdev)
+{
+ u32 tmp;
+
+ if (RREG32(DMA_STATUS_REG) & DMA_IDLE)
+ return;
+
dev_info(rdev->dev, " R_00D034_DMA_STATUS_REG = 0x%08X\n",
RREG32(DMA_STATUS_REG));
+
+ /* dma0 */
+ tmp = RREG32(DMA_RB_CNTL + DMA0_REGISTER_OFFSET);
+ tmp &= ~DMA_RB_ENABLE;
+ WREG32(DMA_RB_CNTL + DMA0_REGISTER_OFFSET, tmp);
+
+ /* dma1 */
+ tmp = RREG32(DMA_RB_CNTL + DMA1_REGISTER_OFFSET);
+ tmp &= ~DMA_RB_ENABLE;
+ WREG32(DMA_RB_CNTL + DMA1_REGISTER_OFFSET, tmp);
+
+ /* Reset dma */
+ WREG32(SRBM_SOFT_RESET, SOFT_RESET_DMA | SOFT_RESET_DMA1);
+ RREG32(SRBM_SOFT_RESET);
+ udelay(50);
+ WREG32(SRBM_SOFT_RESET, 0);
+
+ dev_info(rdev->dev, " R_00D034_DMA_STATUS_REG = 0x%08X\n",
+ RREG32(DMA_STATUS_REG));
+
+}
+
+static int cayman_gpu_soft_reset(struct radeon_device *rdev, u32 reset_mask)
+{
+ struct evergreen_mc_save save;
+
+ if (reset_mask == 0)
+ return 0;
+
+ dev_info(rdev->dev, "GPU softreset: 0x%08X\n", reset_mask);
+
+ dev_info(rdev->dev, " VM_CONTEXT0_PROTECTION_FAULT_ADDR 0x%08X\n",
+ RREG32(0x14F8));
+ dev_info(rdev->dev, " VM_CONTEXT0_PROTECTION_FAULT_STATUS 0x%08X\n",
+ RREG32(0x14D8));
+ dev_info(rdev->dev, " VM_CONTEXT1_PROTECTION_FAULT_ADDR 0x%08X\n",
+ RREG32(0x14FC));
+ dev_info(rdev->dev, " VM_CONTEXT1_PROTECTION_FAULT_STATUS 0x%08X\n",
+ RREG32(0x14DC));
+
+ evergreen_mc_stop(rdev, &save);
+ if (evergreen_mc_wait_for_idle(rdev)) {
+ dev_warn(rdev->dev, "Wait for MC idle timedout !\n");
+ }
+
+ if (reset_mask & (RADEON_RESET_GFX | RADEON_RESET_COMPUTE))
+ cayman_gpu_soft_reset_gfx(rdev);
+
+ if (reset_mask & RADEON_RESET_DMA)
+ cayman_gpu_soft_reset_dma(rdev);
+
+ /* Wait a little for things to settle down */
+ udelay(50);
+
evergreen_mc_resume(rdev, &save);
return 0;
}
int cayman_asic_reset(struct radeon_device *rdev)
{
- return cayman_gpu_soft_reset(rdev);
+ return cayman_gpu_soft_reset(rdev, (RADEON_RESET_GFX |
+ RADEON_RESET_COMPUTE |
+ RADEON_RESET_DMA));
}
/**
--
1.7.7.5
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