[PATCH 042/165] drm/radeon: update CIK soft reset
alexdeucher at gmail.com
alexdeucher at gmail.com
Wed Jun 26 06:22:02 PDT 2013
From: Alex Deucher <alexander.deucher at amd.com>
Update to the newer programming model.
Signed-off-by: Alex Deucher <alexander.deucher at amd.com>
---
drivers/gpu/drm/radeon/cik.c | 387 +++++++++++++++++++++++++----------------
drivers/gpu/drm/radeon/cikd.h | 12 ++
2 files changed, 253 insertions(+), 146 deletions(-)
diff --git a/drivers/gpu/drm/radeon/cik.c b/drivers/gpu/drm/radeon/cik.c
index d241cfd..aaf7bba 100644
--- a/drivers/gpu/drm/radeon/cik.c
+++ b/drivers/gpu/drm/radeon/cik.c
@@ -72,9 +72,11 @@ extern int r600_ih_ring_alloc(struct radeon_device *rdev);
extern void r600_ih_ring_fini(struct radeon_device *rdev);
extern void evergreen_mc_stop(struct radeon_device *rdev, struct evergreen_mc_save *save);
extern void evergreen_mc_resume(struct radeon_device *rdev, struct evergreen_mc_save *save);
+extern bool evergreen_is_display_hung(struct radeon_device *rdev);
extern void si_vram_gtt_location(struct radeon_device *rdev, struct radeon_mc *mc);
extern void si_rlc_fini(struct radeon_device *rdev);
extern int si_rlc_init(struct radeon_device *rdev);
+static void cik_rlc_stop(struct radeon_device *rdev);
#define BONAIRE_IO_MC_REGS_SIZE 36
@@ -2733,56 +2735,9 @@ int cik_sdma_ib_test(struct radeon_device *rdev, struct radeon_ring *ring)
return r;
}
-/**
- * cik_gpu_is_lockup - check if the 3D engine is locked up
- *
- * @rdev: radeon_device pointer
- * @ring: radeon_ring structure holding ring information
- *
- * Check if the 3D engine is locked up (CIK).
- * Returns true if the engine is locked, false if not.
- */
-bool cik_gpu_is_lockup(struct radeon_device *rdev, struct radeon_ring *ring)
-{
- u32 srbm_status, srbm_status2;
- u32 grbm_status, grbm_status2;
- u32 grbm_status_se0, grbm_status_se1, grbm_status_se2, grbm_status_se3;
-
- srbm_status = RREG32(SRBM_STATUS);
- srbm_status2 = RREG32(SRBM_STATUS2);
- grbm_status = RREG32(GRBM_STATUS);
- grbm_status2 = RREG32(GRBM_STATUS2);
- grbm_status_se0 = RREG32(GRBM_STATUS_SE0);
- grbm_status_se1 = RREG32(GRBM_STATUS_SE1);
- grbm_status_se2 = RREG32(GRBM_STATUS_SE2);
- grbm_status_se3 = RREG32(GRBM_STATUS_SE3);
- if (!(grbm_status & GUI_ACTIVE)) {
- radeon_ring_lockup_update(ring);
- return false;
- }
- /* force CP activities */
- radeon_ring_force_activity(rdev, ring);
- return radeon_ring_test_lockup(rdev, ring);
-}
-/**
- * cik_gfx_gpu_soft_reset - soft reset the 3D engine and CPG
- *
- * @rdev: radeon_device pointer
- *
- * Soft reset the GFX engine and CPG blocks (CIK).
- * XXX: deal with reseting RLC and CPF
- * Returns 0 for success.
- */
-static int cik_gfx_gpu_soft_reset(struct radeon_device *rdev)
+static void cik_print_gpu_status_regs(struct radeon_device *rdev)
{
- struct evergreen_mc_save save;
- u32 grbm_reset = 0;
-
- if (!(RREG32(GRBM_STATUS) & GUI_ACTIVE))
- return 0;
-
- dev_info(rdev->dev, "GPU GFX softreset \n");
dev_info(rdev->dev, " GRBM_STATUS=0x%08X\n",
RREG32(GRBM_STATUS));
dev_info(rdev->dev, " GRBM_STATUS2=0x%08X\n",
@@ -2799,132 +2754,270 @@ static int cik_gfx_gpu_soft_reset(struct radeon_device *rdev)
RREG32(SRBM_STATUS));
dev_info(rdev->dev, " SRBM_STATUS2=0x%08X\n",
RREG32(SRBM_STATUS2));
- evergreen_mc_stop(rdev, &save);
- if (radeon_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 | CP_CE_HALT);
+ dev_info(rdev->dev, " SDMA0_STATUS_REG = 0x%08X\n",
+ RREG32(SDMA0_STATUS_REG + SDMA0_REGISTER_OFFSET));
+ dev_info(rdev->dev, " SDMA1_STATUS_REG = 0x%08X\n",
+ RREG32(SDMA0_STATUS_REG + SDMA1_REGISTER_OFFSET));
+}
- /* reset all the gfx block and all CPG blocks */
- grbm_reset = SOFT_RESET_CPG | SOFT_RESET_GFX;
+/**
+ * cik_gpu_check_soft_reset - check which blocks are busy
+ *
+ * @rdev: radeon_device pointer
+ *
+ * Check which blocks are busy and return the relevant reset
+ * mask to be used by cik_gpu_soft_reset().
+ * Returns a mask of the blocks to be reset.
+ */
+static u32 cik_gpu_check_soft_reset(struct radeon_device *rdev)
+{
+ u32 reset_mask = 0;
+ u32 tmp;
- dev_info(rdev->dev, " GRBM_SOFT_RESET=0x%08X\n", grbm_reset);
- WREG32(GRBM_SOFT_RESET, grbm_reset);
- (void)RREG32(GRBM_SOFT_RESET);
- 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));
- dev_info(rdev->dev, " GRBM_STATUS2=0x%08X\n",
- RREG32(GRBM_STATUS2));
- dev_info(rdev->dev, " GRBM_STATUS_SE0=0x%08X\n",
- RREG32(GRBM_STATUS_SE0));
- dev_info(rdev->dev, " GRBM_STATUS_SE1=0x%08X\n",
- RREG32(GRBM_STATUS_SE1));
- dev_info(rdev->dev, " GRBM_STATUS_SE2=0x%08X\n",
- RREG32(GRBM_STATUS_SE2));
- dev_info(rdev->dev, " GRBM_STATUS_SE3=0x%08X\n",
- RREG32(GRBM_STATUS_SE3));
- dev_info(rdev->dev, " SRBM_STATUS=0x%08X\n",
- RREG32(SRBM_STATUS));
- dev_info(rdev->dev, " SRBM_STATUS2=0x%08X\n",
- RREG32(SRBM_STATUS2));
- evergreen_mc_resume(rdev, &save);
- return 0;
+ /* GRBM_STATUS */
+ tmp = RREG32(GRBM_STATUS);
+ if (tmp & (PA_BUSY | SC_BUSY |
+ BCI_BUSY | SX_BUSY |
+ TA_BUSY | VGT_BUSY |
+ DB_BUSY | CB_BUSY |
+ GDS_BUSY | SPI_BUSY |
+ IA_BUSY | IA_BUSY_NO_DMA))
+ reset_mask |= RADEON_RESET_GFX;
+
+ if (tmp & (CP_BUSY | CP_COHERENCY_BUSY))
+ reset_mask |= RADEON_RESET_CP;
+
+ /* GRBM_STATUS2 */
+ tmp = RREG32(GRBM_STATUS2);
+ if (tmp & RLC_BUSY)
+ reset_mask |= RADEON_RESET_RLC;
+
+ /* SDMA0_STATUS_REG */
+ tmp = RREG32(SDMA0_STATUS_REG + SDMA0_REGISTER_OFFSET);
+ if (!(tmp & SDMA_IDLE))
+ reset_mask |= RADEON_RESET_DMA;
+
+ /* SDMA1_STATUS_REG */
+ tmp = RREG32(SDMA0_STATUS_REG + SDMA1_REGISTER_OFFSET);
+ if (!(tmp & SDMA_IDLE))
+ reset_mask |= RADEON_RESET_DMA1;
+
+ /* SRBM_STATUS2 */
+ tmp = RREG32(SRBM_STATUS2);
+ if (tmp & SDMA_BUSY)
+ reset_mask |= RADEON_RESET_DMA;
+
+ if (tmp & SDMA1_BUSY)
+ reset_mask |= RADEON_RESET_DMA1;
+
+ /* SRBM_STATUS */
+ tmp = RREG32(SRBM_STATUS);
+
+ if (tmp & IH_BUSY)
+ reset_mask |= RADEON_RESET_IH;
+
+ if (tmp & SEM_BUSY)
+ reset_mask |= RADEON_RESET_SEM;
+
+ if (tmp & GRBM_RQ_PENDING)
+ reset_mask |= RADEON_RESET_GRBM;
+
+ if (tmp & VMC_BUSY)
+ reset_mask |= RADEON_RESET_VMC;
+
+ if (tmp & (MCB_BUSY | MCB_NON_DISPLAY_BUSY |
+ MCC_BUSY | MCD_BUSY))
+ reset_mask |= RADEON_RESET_MC;
+
+ if (evergreen_is_display_hung(rdev))
+ reset_mask |= RADEON_RESET_DISPLAY;
+
+ /* Skip MC reset as it's mostly likely not hung, just busy */
+ if (reset_mask & RADEON_RESET_MC) {
+ DRM_DEBUG("MC busy: 0x%08X, clearing.\n", reset_mask);
+ reset_mask &= ~RADEON_RESET_MC;
+ }
+
+ return reset_mask;
}
/**
- * cik_compute_gpu_soft_reset - soft reset CPC
+ * cik_gpu_soft_reset - soft reset GPU
*
* @rdev: radeon_device pointer
+ * @reset_mask: mask of which blocks to reset
*
- * Soft reset the CPC blocks (CIK).
- * XXX: deal with reseting RLC and CPF
- * Returns 0 for success.
+ * Soft reset the blocks specified in @reset_mask.
*/
-static int cik_compute_gpu_soft_reset(struct radeon_device *rdev)
+static void cik_gpu_soft_reset(struct radeon_device *rdev, u32 reset_mask)
{
struct evergreen_mc_save save;
- u32 grbm_reset = 0;
+ u32 grbm_soft_reset = 0, srbm_soft_reset = 0;
+ u32 tmp;
+
+ if (reset_mask == 0)
+ return;
+
+ dev_info(rdev->dev, "GPU softreset: 0x%08X\n", reset_mask);
+
+ cik_print_gpu_status_regs(rdev);
+ dev_info(rdev->dev, " VM_CONTEXT1_PROTECTION_FAULT_ADDR 0x%08X\n",
+ RREG32(VM_CONTEXT1_PROTECTION_FAULT_ADDR));
+ dev_info(rdev->dev, " VM_CONTEXT1_PROTECTION_FAULT_STATUS 0x%08X\n",
+ RREG32(VM_CONTEXT1_PROTECTION_FAULT_STATUS));
+
+ /* stop the rlc */
+ cik_rlc_stop(rdev);
+
+ /* Disable GFX parsing/prefetching */
+ WREG32(CP_ME_CNTL, CP_ME_HALT | CP_PFP_HALT | CP_CE_HALT);
+
+ /* Disable MEC parsing/prefetching */
+ WREG32(CP_MEC_CNTL, MEC_ME1_HALT | MEC_ME2_HALT);
+
+ if (reset_mask & RADEON_RESET_DMA) {
+ /* sdma0 */
+ tmp = RREG32(SDMA0_ME_CNTL + SDMA0_REGISTER_OFFSET);
+ tmp |= SDMA_HALT;
+ WREG32(SDMA0_ME_CNTL + SDMA0_REGISTER_OFFSET, tmp);
+ }
+ if (reset_mask & RADEON_RESET_DMA1) {
+ /* sdma1 */
+ tmp = RREG32(SDMA0_ME_CNTL + SDMA1_REGISTER_OFFSET);
+ tmp |= SDMA_HALT;
+ WREG32(SDMA0_ME_CNTL + SDMA1_REGISTER_OFFSET, tmp);
+ }
- dev_info(rdev->dev, "GPU compute softreset \n");
- dev_info(rdev->dev, " GRBM_STATUS=0x%08X\n",
- RREG32(GRBM_STATUS));
- dev_info(rdev->dev, " GRBM_STATUS2=0x%08X\n",
- RREG32(GRBM_STATUS2));
- dev_info(rdev->dev, " GRBM_STATUS_SE0=0x%08X\n",
- RREG32(GRBM_STATUS_SE0));
- dev_info(rdev->dev, " GRBM_STATUS_SE1=0x%08X\n",
- RREG32(GRBM_STATUS_SE1));
- dev_info(rdev->dev, " GRBM_STATUS_SE2=0x%08X\n",
- RREG32(GRBM_STATUS_SE2));
- dev_info(rdev->dev, " GRBM_STATUS_SE3=0x%08X\n",
- RREG32(GRBM_STATUS_SE3));
- dev_info(rdev->dev, " SRBM_STATUS=0x%08X\n",
- RREG32(SRBM_STATUS));
- dev_info(rdev->dev, " SRBM_STATUS2=0x%08X\n",
- RREG32(SRBM_STATUS2));
evergreen_mc_stop(rdev, &save);
- if (radeon_mc_wait_for_idle(rdev)) {
+ if (evergreen_mc_wait_for_idle(rdev)) {
dev_warn(rdev->dev, "Wait for MC idle timedout !\n");
}
- /* Disable CP parsing/prefetching */
- WREG32(CP_MEC_CNTL, MEC_ME1_HALT | MEC_ME2_HALT);
- /* reset all the CPC blocks */
- grbm_reset = SOFT_RESET_CPG;
+ if (reset_mask & (RADEON_RESET_GFX | RADEON_RESET_COMPUTE | RADEON_RESET_CP))
+ grbm_soft_reset = SOFT_RESET_CP | SOFT_RESET_GFX;
+
+ if (reset_mask & RADEON_RESET_CP) {
+ grbm_soft_reset |= SOFT_RESET_CP;
+
+ srbm_soft_reset |= SOFT_RESET_GRBM;
+ }
+
+ if (reset_mask & RADEON_RESET_DMA)
+ srbm_soft_reset |= SOFT_RESET_SDMA;
+
+ if (reset_mask & RADEON_RESET_DMA1)
+ srbm_soft_reset |= SOFT_RESET_SDMA1;
+
+ if (reset_mask & RADEON_RESET_DISPLAY)
+ srbm_soft_reset |= SOFT_RESET_DC;
+
+ if (reset_mask & RADEON_RESET_RLC)
+ grbm_soft_reset |= SOFT_RESET_RLC;
+
+ if (reset_mask & RADEON_RESET_SEM)
+ srbm_soft_reset |= SOFT_RESET_SEM;
+
+ if (reset_mask & RADEON_RESET_IH)
+ srbm_soft_reset |= SOFT_RESET_IH;
+
+ if (reset_mask & RADEON_RESET_GRBM)
+ srbm_soft_reset |= SOFT_RESET_GRBM;
+
+ if (reset_mask & RADEON_RESET_VMC)
+ srbm_soft_reset |= SOFT_RESET_VMC;
+
+ if (!(rdev->flags & RADEON_IS_IGP)) {
+ if (reset_mask & RADEON_RESET_MC)
+ srbm_soft_reset |= SOFT_RESET_MC;
+ }
+
+ if (grbm_soft_reset) {
+ tmp = RREG32(GRBM_SOFT_RESET);
+ tmp |= grbm_soft_reset;
+ dev_info(rdev->dev, "GRBM_SOFT_RESET=0x%08X\n", tmp);
+ WREG32(GRBM_SOFT_RESET, tmp);
+ tmp = RREG32(GRBM_SOFT_RESET);
+
+ udelay(50);
+
+ tmp &= ~grbm_soft_reset;
+ WREG32(GRBM_SOFT_RESET, tmp);
+ tmp = RREG32(GRBM_SOFT_RESET);
+ }
+
+ if (srbm_soft_reset) {
+ tmp = RREG32(SRBM_SOFT_RESET);
+ tmp |= srbm_soft_reset;
+ dev_info(rdev->dev, "SRBM_SOFT_RESET=0x%08X\n", tmp);
+ WREG32(SRBM_SOFT_RESET, tmp);
+ tmp = RREG32(SRBM_SOFT_RESET);
+
+ udelay(50);
+
+ tmp &= ~srbm_soft_reset;
+ WREG32(SRBM_SOFT_RESET, tmp);
+ tmp = RREG32(SRBM_SOFT_RESET);
+ }
- dev_info(rdev->dev, " GRBM_SOFT_RESET=0x%08X\n", grbm_reset);
- WREG32(GRBM_SOFT_RESET, grbm_reset);
- (void)RREG32(GRBM_SOFT_RESET);
- 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));
- dev_info(rdev->dev, " GRBM_STATUS2=0x%08X\n",
- RREG32(GRBM_STATUS2));
- dev_info(rdev->dev, " GRBM_STATUS_SE0=0x%08X\n",
- RREG32(GRBM_STATUS_SE0));
- dev_info(rdev->dev, " GRBM_STATUS_SE1=0x%08X\n",
- RREG32(GRBM_STATUS_SE1));
- dev_info(rdev->dev, " GRBM_STATUS_SE2=0x%08X\n",
- RREG32(GRBM_STATUS_SE2));
- dev_info(rdev->dev, " GRBM_STATUS_SE3=0x%08X\n",
- RREG32(GRBM_STATUS_SE3));
- dev_info(rdev->dev, " SRBM_STATUS=0x%08X\n",
- RREG32(SRBM_STATUS));
- dev_info(rdev->dev, " SRBM_STATUS2=0x%08X\n",
- RREG32(SRBM_STATUS2));
+
evergreen_mc_resume(rdev, &save);
- return 0;
+ udelay(50);
+
+ cik_print_gpu_status_regs(rdev);
}
/**
- * cik_asic_reset - soft reset compute and gfx
+ * cik_asic_reset - soft reset GPU
*
* @rdev: radeon_device pointer
*
- * Soft reset the CPC blocks (CIK).
- * XXX: make this more fine grained and only reset
- * what is necessary.
+ * Look up which blocks are hung and attempt
+ * to reset them.
* Returns 0 for success.
*/
int cik_asic_reset(struct radeon_device *rdev)
{
- int r;
+ u32 reset_mask;
- r = cik_compute_gpu_soft_reset(rdev);
- if (r)
- dev_info(rdev->dev, "Compute reset failed!\n");
+ reset_mask = cik_gpu_check_soft_reset(rdev);
+
+ if (reset_mask)
+ r600_set_bios_scratch_engine_hung(rdev, true);
+
+ cik_gpu_soft_reset(rdev, reset_mask);
- return cik_gfx_gpu_soft_reset(rdev);
+ reset_mask = cik_gpu_check_soft_reset(rdev);
+
+ if (!reset_mask)
+ r600_set_bios_scratch_engine_hung(rdev, false);
+
+ return 0;
+}
+
+/**
+ * cik_gfx_is_lockup - check if the 3D engine is locked up
+ *
+ * @rdev: radeon_device pointer
+ * @ring: radeon_ring structure holding ring information
+ *
+ * Check if the 3D engine is locked up (CIK).
+ * Returns true if the engine is locked, false if not.
+ */
+bool cik_gfx_is_lockup(struct radeon_device *rdev, struct radeon_ring *ring)
+{
+ u32 reset_mask = cik_gpu_check_soft_reset(rdev);
+
+ if (!(reset_mask & (RADEON_RESET_GFX |
+ RADEON_RESET_COMPUTE |
+ RADEON_RESET_CP))) {
+ radeon_ring_lockup_update(ring);
+ return false;
+ }
+ /* force CP activities */
+ radeon_ring_force_activity(rdev, ring);
+ return radeon_ring_test_lockup(rdev, ring);
}
/**
@@ -2938,13 +3031,15 @@ int cik_asic_reset(struct radeon_device *rdev)
*/
bool cik_sdma_is_lockup(struct radeon_device *rdev, struct radeon_ring *ring)
{
- u32 dma_status_reg;
+ u32 reset_mask = cik_gpu_check_soft_reset(rdev);
+ u32 mask;
if (ring->idx == R600_RING_TYPE_DMA_INDEX)
- dma_status_reg = RREG32(SDMA0_STATUS_REG + SDMA0_REGISTER_OFFSET);
+ mask = RADEON_RESET_DMA;
else
- dma_status_reg = RREG32(SDMA0_STATUS_REG + SDMA1_REGISTER_OFFSET);
- if (dma_status_reg & SDMA_IDLE) {
+ mask = RADEON_RESET_DMA1;
+
+ if (!(reset_mask & mask)) {
radeon_ring_lockup_update(ring);
return false;
}
diff --git a/drivers/gpu/drm/radeon/cikd.h b/drivers/gpu/drm/radeon/cikd.h
index daa51ac..8afb334 100644
--- a/drivers/gpu/drm/radeon/cikd.h
+++ b/drivers/gpu/drm/radeon/cikd.h
@@ -40,7 +40,19 @@
#define QUEUEID(x) ((x) << 8)
#define SRBM_STATUS2 0xE4C
+#define SDMA_BUSY (1 << 5)
+#define SDMA1_BUSY (1 << 6)
#define SRBM_STATUS 0xE50
+#define UVD_RQ_PENDING (1 << 1)
+#define GRBM_RQ_PENDING (1 << 5)
+#define VMC_BUSY (1 << 8)
+#define MCB_BUSY (1 << 9)
+#define MCB_NON_DISPLAY_BUSY (1 << 10)
+#define MCC_BUSY (1 << 11)
+#define MCD_BUSY (1 << 12)
+#define SEM_BUSY (1 << 14)
+#define IH_BUSY (1 << 17)
+#define UVD_BUSY (1 << 19)
#define SRBM_SOFT_RESET 0xE60
#define SOFT_RESET_BIF (1 << 1)
--
1.7.7.5
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