drm/radeon: print dma status reg on lockup (v2)

To help debug dma related lockup.

v2: agd5f: update SI as well

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

diff --git a/drivers/gpu/drm/radeon/evergreen.c b/drivers/gpu/drm/radeon/evergreen.c
index f95d7fc1f5e0f8bc2446f216ca0717b4d5af14f4..6dc9ee78f4a8abe8d312429b4e3492a9c37bb968 100644 (file)
--- a/drivers/gpu/drm/radeon/evergreen.c
+++ b/drivers/gpu/drm/radeon/evergreen.c
@@ -2331,6 +2331,8 @@ static int evergreen_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));
        evergreen_mc_stop(rdev, &save);
        if (evergreen_mc_wait_for_idle(rdev)) {
                dev_warn(rdev->dev, "Wait for MC idle timedout !\n");
@@ -2376,6 +2378,8 @@ static int evergreen_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));
        evergreen_mc_resume(rdev, &save);
        return 0;
 }

diff --git a/drivers/gpu/drm/radeon/evergreend.h b/drivers/gpu/drm/radeon/evergreend.h
index cb9baaac9e85102505347cac84c1dd717709d2e4..f82f98a11a7610091ede6a0a8f5f2cdca8ece8ab 100644 (file)
--- a/drivers/gpu/drm/radeon/evergreend.h
+++ b/drivers/gpu/drm/radeon/evergreend.h
@@ -2027,4 +2027,7 @@
 /* cayman packet3 addition */
 #define        CAYMAN_PACKET3_DEALLOC_STATE                    0x14
 
+/* DMA regs common on r6xx/r7xx/evergreen/ni */
+#define DMA_STATUS_REG                                    0xd034
+
 #endif

diff --git a/drivers/gpu/drm/radeon/ni.c b/drivers/gpu/drm/radeon/ni.c
index 7bdbcb00aaf267df84a7c0c02f39541d6f61abeb..6dae3878e39716592b08b32b5731d4298d6784ac 100644 (file)
--- a/drivers/gpu/drm/radeon/ni.c
+++ b/drivers/gpu/drm/radeon/ni.c
@@ -1331,6 +1331,8 @@ 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",
@@ -1387,6 +1389,8 @@ 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));
        evergreen_mc_resume(rdev, &save);
        return 0;
 }

diff --git a/drivers/gpu/drm/radeon/nid.h b/drivers/gpu/drm/radeon/nid.h
index b93186b8ee4ba951189c1ca2b45d381c07ed51c4..22a62c673fec3887447f3a48a09cb0671a8386d4 100644 (file)
--- a/drivers/gpu/drm/radeon/nid.h
+++ b/drivers/gpu/drm/radeon/nid.h
@@ -675,4 +675,3 @@
 #define        DMA_PACKET_NOP                                    0xf
 
 #endif
-

diff --git a/drivers/gpu/drm/radeon/r600.c b/drivers/gpu/drm/radeon/r600.c
index 9f4ce5eb9e9cb5f426e6761cfb6ad00a88e40a25..252067bba2d91bbdeb162dd168520f415b59db4c 100644 (file)
--- a/drivers/gpu/drm/radeon/r600.c
+++ b/drivers/gpu/drm/radeon/r600.c
@@ -1297,6 +1297,8 @@ static int r600_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));
        rv515_mc_stop(rdev, &save);
        if (r600_mc_wait_for_idle(rdev)) {
                dev_warn(rdev->dev, "Wait for MC idle timedout !\n");
@@ -1348,6 +1350,8 @@ static int r600_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));
        rv515_mc_resume(rdev, &save);
        return 0;
 }

diff --git a/drivers/gpu/drm/radeon/si.c b/drivers/gpu/drm/radeon/si.c
index ef683653f0b71be1be31cf0eb027c743eed707d8..74d38452c5c18235903d0c9bf3acf085be9e8174 100644 (file)
--- a/drivers/gpu/drm/radeon/si.c
+++ b/drivers/gpu/drm/radeon/si.c
@@ -2145,6 +2145,13 @@ static int si_gpu_soft_reset(struct radeon_device *rdev)
                RREG32(GRBM_STATUS_SE1));
        dev_info(rdev->dev, "  SRBM_STATUS=0x%08X\n",
                RREG32(SRBM_STATUS));
+       dev_info(rdev->dev, "  DMA_STATUS_REG   = 0x%08X\n",
+               RREG32(DMA_STATUS_REG));
+       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));
+
        evergreen_mc_stop(rdev, &save);
        if (radeon_mc_wait_for_idle(rdev)) {
                dev_warn(rdev->dev, "Wait for MC idle timedout !\n");
@@ -2185,6 +2192,8 @@ static int si_gpu_soft_reset(struct radeon_device *rdev)
                RREG32(GRBM_STATUS_SE1));
        dev_info(rdev->dev, "  SRBM_STATUS=0x%08X\n",
                RREG32(SRBM_STATUS));
+       dev_info(rdev->dev, "  DMA_STATUS_REG   = 0x%08X\n",
+               RREG32(DMA_STATUS_REG));
        evergreen_mc_resume(rdev, &save);
        return 0;
 }

diff --git a/drivers/gpu/drm/radeon/sid.h b/drivers/gpu/drm/radeon/sid.h
index 62b46215d423a785ca481aa00da188217450f9da..98909b264ac2f2508604b0974443d1bb777308a7 100644 (file)
--- a/drivers/gpu/drm/radeon/sid.h
+++ b/drivers/gpu/drm/radeon/sid.h
@@ -1013,6 +1013,8 @@
 #       define DATA_SWAP_ENABLE                           (1 << 3)
 #       define FENCE_SWAP_ENABLE                          (1 << 4)
 #       define CTXEMPTY_INT_ENABLE                        (1 << 28)
+#define DMA_STATUS_REG                                    0xd034
+#       define DMA_IDLE                                   (1 << 0)
 #define DMA_TILING_CONFIG                                0xd0b8
 
 #define DMA_PACKET(cmd, b, t, s, n)    ((((cmd) & 0xF) << 28) |        \