[PATCH 7/7] drm/amdgpu: add a fence timeout for the IB tests v2
Deucher, Alexander
Alexander.Deucher at amd.com
Wed Jul 27 17:57:21 UTC 2016
> -----Original Message-----
> From: amd-gfx [mailto:amd-gfx-bounces at lists.freedesktop.org] On Behalf
> Of Christian König
> Sent: Thursday, July 21, 2016 6:01 AM
> To: amd-gfx at lists.freedesktop.org
> Subject: [PATCH 7/7] drm/amdgpu: add a fence timeout for the IB tests v2
>
> From: Christian König <christian.koenig at amd.com>
>
> 10ms should be enough for now.
>
> v2: fix some typos in CIK code
>
> Signed-off-by: Christian König <christian.koenig at amd.com>
For the series:
Reviewed-by: Alex Deucher <alexander.deucher at amd.com>
> ---
> drivers/gpu/drm/amd/amdgpu/amdgpu.h | 4 ++--
> drivers/gpu/drm/amd/amdgpu/amdgpu_ib.c | 4 +++-
> drivers/gpu/drm/amd/amdgpu/amdgpu_uvd.c | 25 +++++++++++++++-----
> -----
> drivers/gpu/drm/amd/amdgpu/amdgpu_uvd.h | 2 +-
> drivers/gpu/drm/amd/amdgpu/amdgpu_vce.c | 18 +++++++++++-------
> drivers/gpu/drm/amd/amdgpu/amdgpu_vce.h | 2 +-
> drivers/gpu/drm/amd/amdgpu/cik_sdma.c | 19 ++++++++++++-------
> drivers/gpu/drm/amd/amdgpu/gfx_v7_0.c | 19 ++++++++++++-------
> drivers/gpu/drm/amd/amdgpu/gfx_v8_0.c | 19 ++++++++++++-------
> drivers/gpu/drm/amd/amdgpu/sdma_v2_4.c | 19 ++++++++++++-------
> drivers/gpu/drm/amd/amdgpu/sdma_v3_0.c | 19 ++++++++++++-------
> 11 files changed, 93 insertions(+), 57 deletions(-)
>
> diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu.h
> b/drivers/gpu/drm/amd/amdgpu/amdgpu.h
> index f724a87..03c3a8a 100644
> --- a/drivers/gpu/drm/amd/amdgpu/amdgpu.h
> +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu.h
> @@ -307,7 +307,7 @@ struct amdgpu_ring_funcs {
> uint32_t oa_base, uint32_t oa_size);
> /* testing functions */
> int (*test_ring)(struct amdgpu_ring *ring);
> - int (*test_ib)(struct amdgpu_ring *ring);
> + int (*test_ib)(struct amdgpu_ring *ring, long timeout);
> /* insert NOP packets */
> void (*insert_nop)(struct amdgpu_ring *ring, uint32_t count);
> /* pad the indirect buffer to the necessary number of dw */
> @@ -2261,7 +2261,7 @@ amdgpu_get_sdma_instance(struct amdgpu_ring
> *ring)
> #define amdgpu_vm_set_pte_pde(adev, ib, pe, addr, count, incr, flags)
> ((adev)->vm_manager.vm_pte_funcs->set_pte_pde((ib), (pe), (addr),
> (count), (incr), (flags)))
> #define amdgpu_ring_parse_cs(r, p, ib) ((r)->funcs->parse_cs((p), (ib)))
> #define amdgpu_ring_test_ring(r) (r)->funcs->test_ring((r))
> -#define amdgpu_ring_test_ib(r) (r)->funcs->test_ib((r))
> +#define amdgpu_ring_test_ib(r, t) (r)->funcs->test_ib((r), (t))
> #define amdgpu_ring_get_rptr(r) (r)->funcs->get_rptr((r))
> #define amdgpu_ring_get_wptr(r) (r)->funcs->get_wptr((r))
> #define amdgpu_ring_set_wptr(r) (r)->funcs->set_wptr((r))
> diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_ib.c
> b/drivers/gpu/drm/amd/amdgpu/amdgpu_ib.c
> index 428ebf3..050062e 100644
> --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_ib.c
> +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_ib.c
> @@ -33,6 +33,8 @@
> #include "amdgpu.h"
> #include "atom.h"
>
> +#define AMDGPU_IB_TEST_TIMEOUT msecs_to_jiffies(10)
> +
> /*
> * IB
> * IBs (Indirect Buffers) and areas of GPU accessible memory where
> @@ -286,7 +288,7 @@ int amdgpu_ib_ring_tests(struct amdgpu_device
> *adev)
> if (!ring || !ring->ready)
> continue;
>
> - r = amdgpu_ring_test_ib(ring);
> + r = amdgpu_ring_test_ib(ring,
> AMDGPU_IB_TEST_TIMEOUT);
> if (r) {
> ring->ready = false;
>
> diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_uvd.c
> b/drivers/gpu/drm/amd/amdgpu/amdgpu_uvd.c
> index d8b461a..aa80b72 100644
> --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_uvd.c
> +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_uvd.c
> @@ -1139,29 +1139,34 @@ void amdgpu_uvd_ring_end_use(struct
> amdgpu_ring *ring)
> *
> * Test if we can successfully execute an IB
> */
> -int amdgpu_uvd_ring_test_ib(struct amdgpu_ring *ring)
> +int amdgpu_uvd_ring_test_ib(struct amdgpu_ring *ring, long timeout)
> {
> - struct fence *fence = NULL;
> - int r;
> + struct fence *fence;
> + long r;
>
> r = amdgpu_uvd_get_create_msg(ring, 1, NULL);
> if (r) {
> - DRM_ERROR("amdgpu: failed to get create msg (%d).\n", r);
> + DRM_ERROR("amdgpu: failed to get create msg (%ld).\n", r);
> goto error;
> }
>
> r = amdgpu_uvd_get_destroy_msg(ring, 1, true, &fence);
> if (r) {
> - DRM_ERROR("amdgpu: failed to get destroy ib (%d).\n", r);
> + DRM_ERROR("amdgpu: failed to get destroy ib (%ld).\n", r);
> goto error;
> }
>
> - r = fence_wait(fence, false);
> - if (r) {
> - DRM_ERROR("amdgpu: fence wait failed (%d).\n", r);
> - goto error;
> + r = fence_wait_timeout(fence, false, timeout);
> + if (r == 0) {
> + DRM_ERROR("amdgpu: IB test timed out.\n");
> + r = -ETIMEDOUT;
> + } else if (r < 0) {
> + DRM_ERROR("amdgpu: fence wait failed (%ld).\n", r);
> + } else {
> + DRM_INFO("ib test on ring %d succeeded\n", ring->idx);
> + r = 0;
> }
> - DRM_INFO("ib test on ring %d succeeded\n", ring->idx);
> +
> error:
> fence_put(fence);
> return r;
> diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_uvd.h
> b/drivers/gpu/drm/amd/amdgpu/amdgpu_uvd.h
> index 224359e..c850009 100644
> --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_uvd.h
> +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_uvd.h
> @@ -37,6 +37,6 @@ void amdgpu_uvd_free_handles(struct amdgpu_device
> *adev,
> int amdgpu_uvd_ring_parse_cs(struct amdgpu_cs_parser *parser, uint32_t
> ib_idx);
> void amdgpu_uvd_ring_begin_use(struct amdgpu_ring *ring);
> void amdgpu_uvd_ring_end_use(struct amdgpu_ring *ring);
> -int amdgpu_uvd_ring_test_ib(struct amdgpu_ring *ring);
> +int amdgpu_uvd_ring_test_ib(struct amdgpu_ring *ring, long timeout);
>
> #endif
> diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_vce.c
> b/drivers/gpu/drm/amd/amdgpu/amdgpu_vce.c
> index 6b49d40..0afa73c 100644
> --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_vce.c
> +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_vce.c
> @@ -844,10 +844,10 @@ int amdgpu_vce_ring_test_ring(struct
> amdgpu_ring *ring)
> * @ring: the engine to test on
> *
> */
> -int amdgpu_vce_ring_test_ib(struct amdgpu_ring *ring)
> +int amdgpu_vce_ring_test_ib(struct amdgpu_ring *ring, long timeout)
> {
> struct fence *fence = NULL;
> - int r;
> + long r;
>
> /* skip vce ring1 ib test for now, since it's not reliable */
> if (ring == &ring->adev->vce.ring[1])
> @@ -855,21 +855,25 @@ int amdgpu_vce_ring_test_ib(struct amdgpu_ring
> *ring)
>
> r = amdgpu_vce_get_create_msg(ring, 1, NULL);
> if (r) {
> - DRM_ERROR("amdgpu: failed to get create msg (%d).\n", r);
> + DRM_ERROR("amdgpu: failed to get create msg (%ld).\n", r);
> goto error;
> }
>
> r = amdgpu_vce_get_destroy_msg(ring, 1, true, &fence);
> if (r) {
> - DRM_ERROR("amdgpu: failed to get destroy ib (%d).\n", r);
> + DRM_ERROR("amdgpu: failed to get destroy ib (%ld).\n", r);
> goto error;
> }
>
> - r = fence_wait(fence, false);
> - if (r) {
> - DRM_ERROR("amdgpu: fence wait failed (%d).\n", r);
> + r = fence_wait_timeout(fence, false, timeout);
> + if (r == 0) {
> + DRM_ERROR("amdgpu: IB test timed out.\n");
> + r = -ETIMEDOUT;
> + } else if (r < 0) {
> + DRM_ERROR("amdgpu: fence wait failed (%ld).\n", r);
> } else {
> DRM_INFO("ib test on ring %d succeeded\n", ring->idx);
> + r = 0;
> }
> error:
> fence_put(fence);
> diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_vce.h
> b/drivers/gpu/drm/amd/amdgpu/amdgpu_vce.h
> index fe84b80..63f83d0 100644
> --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_vce.h
> +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_vce.h
> @@ -39,7 +39,7 @@ void amdgpu_vce_ring_emit_ib(struct amdgpu_ring
> *ring, struct amdgpu_ib *ib,
> void amdgpu_vce_ring_emit_fence(struct amdgpu_ring *ring, u64 addr, u64
> seq,
> unsigned flags);
> int amdgpu_vce_ring_test_ring(struct amdgpu_ring *ring);
> -int amdgpu_vce_ring_test_ib(struct amdgpu_ring *ring);
> +int amdgpu_vce_ring_test_ib(struct amdgpu_ring *ring, long timeout);
> void amdgpu_vce_ring_begin_use(struct amdgpu_ring *ring);
> void amdgpu_vce_ring_end_use(struct amdgpu_ring *ring);
>
> diff --git a/drivers/gpu/drm/amd/amdgpu/cik_sdma.c
> b/drivers/gpu/drm/amd/amdgpu/cik_sdma.c
> index 6507a7e..7f95a8b 100644
> --- a/drivers/gpu/drm/amd/amdgpu/cik_sdma.c
> +++ b/drivers/gpu/drm/amd/amdgpu/cik_sdma.c
> @@ -617,19 +617,19 @@ static int cik_sdma_ring_test_ring(struct
> amdgpu_ring *ring)
> * Test a simple IB in the DMA ring (CIK).
> * Returns 0 on success, error on failure.
> */
> -static int cik_sdma_ring_test_ib(struct amdgpu_ring *ring)
> +static int cik_sdma_ring_test_ib(struct amdgpu_ring *ring, long timeout)
> {
> struct amdgpu_device *adev = ring->adev;
> struct amdgpu_ib ib;
> struct fence *f = NULL;
> unsigned index;
> - int r;
> u32 tmp = 0;
> u64 gpu_addr;
> + long r;
>
> r = amdgpu_wb_get(adev, &index);
> if (r) {
> - dev_err(adev->dev, "(%d) failed to allocate wb slot\n", r);
> + dev_err(adev->dev, "(%ld) failed to allocate wb slot\n", r);
> return r;
> }
>
> @@ -639,7 +639,7 @@ static int cik_sdma_ring_test_ib(struct amdgpu_ring
> *ring)
> memset(&ib, 0, sizeof(ib));
> r = amdgpu_ib_get(adev, NULL, 256, &ib);
> if (r) {
> - DRM_ERROR("amdgpu: failed to get ib (%d).\n", r);
> + DRM_ERROR("amdgpu: failed to get ib (%ld).\n", r);
> goto err0;
> }
>
> @@ -654,14 +654,19 @@ static int cik_sdma_ring_test_ib(struct
> amdgpu_ring *ring)
> if (r)
> goto err1;
>
> - r = fence_wait(f, false);
> - if (r) {
> - DRM_ERROR("amdgpu: fence wait failed (%d).\n", r);
> + r = fence_wait_timeout(f, false, timeout);
> + if (r == 0) {
> + DRM_ERROR("amdgpu: IB test timed out\n");
> + r = -ETIMEDOUT;
> + goto err1;
> + } else if (r < 0) {
> + DRM_ERROR("amdgpu: fence wait failed (%ld).\n", r);
> goto err1;
> }
> tmp = le32_to_cpu(adev->wb.wb[index]);
> if (tmp == 0xDEADBEEF) {
> DRM_INFO("ib test on ring %d succeeded\n", ring->idx);
> + r = 0;
> } else {
> DRM_ERROR("amdgpu: ib test failed (0x%08X)\n", tmp);
> r = -EINVAL;
> diff --git a/drivers/gpu/drm/amd/amdgpu/gfx_v7_0.c
> b/drivers/gpu/drm/amd/amdgpu/gfx_v7_0.c
> index 81e5dec..740b4be 100644
> --- a/drivers/gpu/drm/amd/amdgpu/gfx_v7_0.c
> +++ b/drivers/gpu/drm/amd/amdgpu/gfx_v7_0.c
> @@ -2105,25 +2105,25 @@ static void
> gfx_v7_0_ring_emit_ib_compute(struct amdgpu_ring *ring,
> * Provides a basic gfx ring test to verify that IBs are working.
> * Returns 0 on success, error on failure.
> */
> -static int gfx_v7_0_ring_test_ib(struct amdgpu_ring *ring)
> +static int gfx_v7_0_ring_test_ib(struct amdgpu_ring *ring, long timeout)
> {
> struct amdgpu_device *adev = ring->adev;
> struct amdgpu_ib ib;
> struct fence *f = NULL;
> uint32_t scratch;
> uint32_t tmp = 0;
> - int r;
> + long r;
>
> r = amdgpu_gfx_scratch_get(adev, &scratch);
> if (r) {
> - DRM_ERROR("amdgpu: failed to get scratch reg (%d).\n", r);
> + DRM_ERROR("amdgpu: failed to get scratch reg (%ld).\n", r);
> return r;
> }
> WREG32(scratch, 0xCAFEDEAD);
> memset(&ib, 0, sizeof(ib));
> r = amdgpu_ib_get(adev, NULL, 256, &ib);
> if (r) {
> - DRM_ERROR("amdgpu: failed to get ib (%d).\n", r);
> + DRM_ERROR("amdgpu: failed to get ib (%ld).\n", r);
> goto err1;
> }
> ib.ptr[0] = PACKET3(PACKET3_SET_UCONFIG_REG, 1);
> @@ -2135,14 +2135,19 @@ static int gfx_v7_0_ring_test_ib(struct
> amdgpu_ring *ring)
> if (r)
> goto err2;
>
> - r = fence_wait(f, false);
> - if (r) {
> - DRM_ERROR("amdgpu: fence wait failed (%d).\n", r);
> + r = fence_wait_timeout(f, false, timeout);
> + if (r == 0) {
> + DRM_ERROR("amdgpu: IB test timed out\n");
> + r = -ETIMEDOUT;
> + goto err2;
> + } else if (r < 0) {
> + DRM_ERROR("amdgpu: fence wait failed (%ld).\n", r);
> goto err2;
> }
> tmp = RREG32(scratch);
> if (tmp == 0xDEADBEEF) {
> DRM_INFO("ib test on ring %d succeeded\n", ring->idx);
> + r = 0;
> } else {
> DRM_ERROR("amdgpu: ib test failed
> (scratch(0x%04X)=0x%08X)\n",
> scratch, tmp);
> diff --git a/drivers/gpu/drm/amd/amdgpu/gfx_v8_0.c
> b/drivers/gpu/drm/amd/amdgpu/gfx_v8_0.c
> index 5882d3a..f58fc84 100644
> --- a/drivers/gpu/drm/amd/amdgpu/gfx_v8_0.c
> +++ b/drivers/gpu/drm/amd/amdgpu/gfx_v8_0.c
> @@ -784,25 +784,25 @@ static int gfx_v8_0_ring_test_ring(struct
> amdgpu_ring *ring)
> return r;
> }
>
> -static int gfx_v8_0_ring_test_ib(struct amdgpu_ring *ring)
> +static int gfx_v8_0_ring_test_ib(struct amdgpu_ring *ring, long timeout)
> {
> struct amdgpu_device *adev = ring->adev;
> struct amdgpu_ib ib;
> struct fence *f = NULL;
> uint32_t scratch;
> uint32_t tmp = 0;
> - int r;
> + long r;
>
> r = amdgpu_gfx_scratch_get(adev, &scratch);
> if (r) {
> - DRM_ERROR("amdgpu: failed to get scratch reg (%d).\n", r);
> + DRM_ERROR("amdgpu: failed to get scratch reg (%ld).\n", r);
> return r;
> }
> WREG32(scratch, 0xCAFEDEAD);
> memset(&ib, 0, sizeof(ib));
> r = amdgpu_ib_get(adev, NULL, 256, &ib);
> if (r) {
> - DRM_ERROR("amdgpu: failed to get ib (%d).\n", r);
> + DRM_ERROR("amdgpu: failed to get ib (%ld).\n", r);
> goto err1;
> }
> ib.ptr[0] = PACKET3(PACKET3_SET_UCONFIG_REG, 1);
> @@ -814,14 +814,19 @@ static int gfx_v8_0_ring_test_ib(struct
> amdgpu_ring *ring)
> if (r)
> goto err2;
>
> - r = fence_wait(f, false);
> - if (r) {
> - DRM_ERROR("amdgpu: fence wait failed (%d).\n", r);
> + r = fence_wait_timeout(f, false, timeout);
> + if (r == 0) {
> + DRM_ERROR("amdgpu: IB test timed out.\n");
> + r = -ETIMEDOUT;
> + goto err2;
> + } else if (r < 0) {
> + DRM_ERROR("amdgpu: fence wait failed (%ld).\n", r);
> goto err2;
> }
> tmp = RREG32(scratch);
> if (tmp == 0xDEADBEEF) {
> DRM_INFO("ib test on ring %d succeeded\n", ring->idx);
> + r = 0;
> } else {
> DRM_ERROR("amdgpu: ib test failed
> (scratch(0x%04X)=0x%08X)\n",
> scratch, tmp);
> diff --git a/drivers/gpu/drm/amd/amdgpu/sdma_v2_4.c
> b/drivers/gpu/drm/amd/amdgpu/sdma_v2_4.c
> index 0111d15..c7113ee 100644
> --- a/drivers/gpu/drm/amd/amdgpu/sdma_v2_4.c
> +++ b/drivers/gpu/drm/amd/amdgpu/sdma_v2_4.c
> @@ -668,19 +668,19 @@ static int sdma_v2_4_ring_test_ring(struct
> amdgpu_ring *ring)
> * Test a simple IB in the DMA ring (VI).
> * Returns 0 on success, error on failure.
> */
> -static int sdma_v2_4_ring_test_ib(struct amdgpu_ring *ring)
> +static int sdma_v2_4_ring_test_ib(struct amdgpu_ring *ring, long timeout)
> {
> struct amdgpu_device *adev = ring->adev;
> struct amdgpu_ib ib;
> struct fence *f = NULL;
> unsigned index;
> - int r;
> u32 tmp = 0;
> u64 gpu_addr;
> + long r;
>
> r = amdgpu_wb_get(adev, &index);
> if (r) {
> - dev_err(adev->dev, "(%d) failed to allocate wb slot\n", r);
> + dev_err(adev->dev, "(%ld) failed to allocate wb slot\n", r);
> return r;
> }
>
> @@ -690,7 +690,7 @@ static int sdma_v2_4_ring_test_ib(struct
> amdgpu_ring *ring)
> memset(&ib, 0, sizeof(ib));
> r = amdgpu_ib_get(adev, NULL, 256, &ib);
> if (r) {
> - DRM_ERROR("amdgpu: failed to get ib (%d).\n", r);
> + DRM_ERROR("amdgpu: failed to get ib (%ld).\n", r);
> goto err0;
> }
>
> @@ -709,14 +709,19 @@ static int sdma_v2_4_ring_test_ib(struct
> amdgpu_ring *ring)
> if (r)
> goto err1;
>
> - r = fence_wait(f, false);
> - if (r) {
> - DRM_ERROR("amdgpu: fence wait failed (%d).\n", r);
> + r = fence_wait_timeout(f, false, timeout);
> + if (r == 0) {
> + DRM_ERROR("amdgpu: IB test timed out\n");
> + r = -ETIMEDOUT;
> + goto err1;
> + } else if (r) {
> + DRM_ERROR("amdgpu: fence wait failed (%ld).\n", r);
> goto err1;
> }
> tmp = le32_to_cpu(adev->wb.wb[index]);
> if (tmp == 0xDEADBEEF) {
> DRM_INFO("ib test on ring %d succeeded\n", ring->idx);
> + r = 0;
> } else {
> DRM_ERROR("amdgpu: ib test failed (0x%08X)\n", tmp);
> r = -EINVAL;
> diff --git a/drivers/gpu/drm/amd/amdgpu/sdma_v3_0.c
> b/drivers/gpu/drm/amd/amdgpu/sdma_v3_0.c
> index e506d3c..df09d85 100644
> --- a/drivers/gpu/drm/amd/amdgpu/sdma_v3_0.c
> +++ b/drivers/gpu/drm/amd/amdgpu/sdma_v3_0.c
> @@ -896,19 +896,19 @@ static int sdma_v3_0_ring_test_ring(struct
> amdgpu_ring *ring)
> * Test a simple IB in the DMA ring (VI).
> * Returns 0 on success, error on failure.
> */
> -static int sdma_v3_0_ring_test_ib(struct amdgpu_ring *ring)
> +static int sdma_v3_0_ring_test_ib(struct amdgpu_ring *ring, long timeout)
> {
> struct amdgpu_device *adev = ring->adev;
> struct amdgpu_ib ib;
> struct fence *f = NULL;
> unsigned index;
> - int r;
> u32 tmp = 0;
> u64 gpu_addr;
> + long r;
>
> r = amdgpu_wb_get(adev, &index);
> if (r) {
> - dev_err(adev->dev, "(%d) failed to allocate wb slot\n", r);
> + dev_err(adev->dev, "(%ld) failed to allocate wb slot\n", r);
> return r;
> }
>
> @@ -918,7 +918,7 @@ static int sdma_v3_0_ring_test_ib(struct
> amdgpu_ring *ring)
> memset(&ib, 0, sizeof(ib));
> r = amdgpu_ib_get(adev, NULL, 256, &ib);
> if (r) {
> - DRM_ERROR("amdgpu: failed to get ib (%d).\n", r);
> + DRM_ERROR("amdgpu: failed to get ib (%ld).\n", r);
> goto err0;
> }
>
> @@ -937,14 +937,19 @@ static int sdma_v3_0_ring_test_ib(struct
> amdgpu_ring *ring)
> if (r)
> goto err1;
>
> - r = fence_wait(f, false);
> - if (r) {
> - DRM_ERROR("amdgpu: fence wait failed (%d).\n", r);
> + r = fence_wait_timeout(f, false, timeout);
> + if (r == 0) {
> + DRM_ERROR("amdgpu: IB test timed out\n");
> + r = -ETIMEDOUT;
> + goto err1;
> + } else if (r < 0) {
> + DRM_ERROR("amdgpu: fence wait failed (%ld).\n", r);
> goto err1;
> }
> tmp = le32_to_cpu(adev->wb.wb[index]);
> if (tmp == 0xDEADBEEF) {
> DRM_INFO("ib test on ring %d succeeded\n", ring->idx);
> + r = 0;
> } else {
> DRM_ERROR("amdgpu: ib test failed (0x%08X)\n", tmp);
> r = -EINVAL;
> --
> 2.5.0
>
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