From 9cca0b8e5df0ac438c65eec5044bfa089d16fbbe Mon Sep 17 00:00:00 2001 From: Christian König Date: Wed, 6 Sep 2017 16:15:28 +0200 Subject: drm/amdgpu: move amdgpu_cs_sysvm_access_required into find_mapping MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit When we need to find the mapping we need sysvm access anyway. Signed-off-by: Christian König Acked-by: Leo Liu Signed-off-by: Alex Deucher --- drivers/gpu/drm/amd/amdgpu/amdgpu_vce.c | 11 ++++------- 1 file changed, 4 insertions(+), 7 deletions(-) (limited to 'drivers/gpu/drm/amd/amdgpu/amdgpu_vce.c') diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_vce.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_vce.c index c855366521ab..b46280c1279f 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_vce.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_vce.c @@ -559,6 +559,7 @@ static int amdgpu_vce_cs_reloc(struct amdgpu_cs_parser *p, uint32_t ib_idx, struct amdgpu_bo_va_mapping *mapping; struct amdgpu_bo *bo; uint64_t addr; + int r; if (index == 0xffffffff) index = 0; @@ -567,11 +568,11 @@ static int amdgpu_vce_cs_reloc(struct amdgpu_cs_parser *p, uint32_t ib_idx, ((uint64_t)amdgpu_get_ib_value(p, ib_idx, hi)) << 32; addr += ((uint64_t)size) * ((uint64_t)index); - mapping = amdgpu_cs_find_mapping(p, addr, &bo); - if (mapping == NULL) { + r = amdgpu_cs_find_mapping(p, addr, &bo, &mapping); + if (r) { DRM_ERROR("Can't find BO for addr 0x%010Lx %d %d %d %d\n", addr, lo, hi, size, index); - return -EINVAL; + return r; } if ((addr + (uint64_t)size) > @@ -652,10 +653,6 @@ int amdgpu_vce_ring_parse_cs(struct amdgpu_cs_parser *p, uint32_t ib_idx) p->job->vm = NULL; ib->gpu_addr = amdgpu_sa_bo_gpu_addr(ib->sa_bo); - r = amdgpu_cs_sysvm_access_required(p); - if (r) - return r; - while (idx < ib->length_dw) { uint32_t len = amdgpu_get_ib_value(p, ib_idx, idx); uint32_t cmd = amdgpu_get_ib_value(p, ib_idx, idx + 1); -- cgit v1.2.3 From 40a9960b046290939b56ce8e51f365258f27f264 Mon Sep 17 00:00:00 2001 From: Dan Carpenter Date: Sat, 30 Sep 2017 11:13:28 +0300 Subject: drm/amdgpu: potential uninitialized variable in amdgpu_vce_ring_parse_cs() MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit We shifted some code around in commit 9cca0b8e5df0 ("drm/amdgpu: move amdgpu_cs_sysvm_access_required into find_mapping") and now my static checker complains that "r" might not be initialized at the end of the function. I've reviewed the code, and that seems possible, but it's also possible I may have missed something. Reviewed-by: Christian König Signed-off-by: Dan Carpenter Signed-off-by: Alex Deucher Cc: stable@vger.kernel.org --- drivers/gpu/drm/amd/amdgpu/amdgpu_vce.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'drivers/gpu/drm/amd/amdgpu/amdgpu_vce.c') diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_vce.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_vce.c index b46280c1279f..2918de2f39ec 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_vce.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_vce.c @@ -648,7 +648,7 @@ int amdgpu_vce_ring_parse_cs(struct amdgpu_cs_parser *p, uint32_t ib_idx) uint32_t allocated = 0; uint32_t tmp, handle = 0; uint32_t *size = &tmp; - int i, r, idx = 0; + int i, r = 0, idx = 0; p->job->vm = NULL; ib->gpu_addr = amdgpu_sa_bo_gpu_addr(ib->sa_bo); -- cgit v1.2.3