From 30953c4d000b6742eeb9cb248e737ecacf3a3b96 Mon Sep 17 00:00:00 2001 From: Srinivasan Shanmugam Date: Fri, 21 Jul 2023 14:03:53 +0530 Subject: drm/amdgpu: Fix style issues in amdgpu_gem.c MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Fixes the following to align to linux coding style: WARNING: braces {} are not necessary for any arm of this statement WARNING: Missing a blank line after declarations ERROR: space prohibited before that close parenthesis ')' WARNING: unnecessary whitespace before a quoted newline WARNING: %LX is non-standard C, use %llX Cc: Christian König Cc: Alex Deucher Signed-off-by: Srinivasan Shanmugam Reviewed-by: Alex Deucher Signed-off-by: Alex Deucher --- drivers/gpu/drm/amd/amdgpu/amdgpu_gem.c | 38 ++++++++++++++++----------------- 1 file changed, 19 insertions(+), 19 deletions(-) (limited to 'drivers/gpu/drm/amd/amdgpu/amdgpu_gem.c') diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_gem.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_gem.c index 74055cba3dc9..992dfd3de49c 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_gem.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_gem.c @@ -181,11 +181,10 @@ static int amdgpu_gem_object_open(struct drm_gem_object *obj, return r; bo_va = amdgpu_vm_bo_find(vm, abo); - if (!bo_va) { + if (!bo_va) bo_va = amdgpu_vm_bo_add(adev, vm, abo); - } else { + else ++bo_va->ref_count; - } amdgpu_bo_unreserve(abo); return 0; } @@ -217,8 +216,8 @@ static void amdgpu_gem_object_close(struct drm_gem_object *obj, r = ttm_eu_reserve_buffers(&ticket, &list, false, &duplicates); if (r) { - dev_err(adev->dev, "leaking bo va because " - "we fail to reserve bo (%ld)\n", r); + dev_err(adev->dev, "leaking bo va because we fail to reserve bo (%ld)\n", + r); return; } bo_va = amdgpu_vm_bo_find(vm, bo); @@ -238,8 +237,8 @@ static void amdgpu_gem_object_close(struct drm_gem_object *obj, out_unlock: if (unlikely(r < 0)) - dev_err(adev->dev, "failed to clear page " - "tables on GEM object close (%ld)\n", r); + dev_err(adev->dev, "failed to clear page tables on GEM object close (%ld)\n", + r); ttm_eu_backoff_reservation(&ticket, &list); } @@ -463,9 +462,9 @@ int amdgpu_mode_dumb_mmap(struct drm_file *filp, struct amdgpu_bo *robj; gobj = drm_gem_object_lookup(filp, handle); - if (gobj == NULL) { + if (!gobj) return -ENOENT; - } + robj = gem_to_amdgpu_bo(gobj); if (amdgpu_ttm_tt_get_usermm(robj->tbo.ttm) || (robj->flags & AMDGPU_GEM_CREATE_NO_CPU_ACCESS)) { @@ -482,6 +481,7 @@ int amdgpu_gem_mmap_ioctl(struct drm_device *dev, void *data, { union drm_amdgpu_gem_mmap *args = data; uint32_t handle = args->in.handle; + memset(args, 0, sizeof(*args)); return amdgpu_mode_dumb_mmap(filp, dev, handle, &args->out.addr_ptr); } @@ -508,7 +508,7 @@ unsigned long amdgpu_gem_timeout(uint64_t timeout_ns) timeout_jiffies = nsecs_to_jiffies(ktime_to_ns(timeout)); /* clamp timeout to avoid unsigned-> signed overflow */ - if (timeout_jiffies > MAX_SCHEDULE_TIMEOUT ) + if (timeout_jiffies > MAX_SCHEDULE_TIMEOUT) return MAX_SCHEDULE_TIMEOUT - 1; return timeout_jiffies; @@ -526,9 +526,9 @@ int amdgpu_gem_wait_idle_ioctl(struct drm_device *dev, void *data, long ret; gobj = drm_gem_object_lookup(filp, handle); - if (gobj == NULL) { + if (!gobj) return -ENOENT; - } + robj = gem_to_amdgpu_bo(gobj); ret = dma_resv_wait_timeout(robj->tbo.base.resv, DMA_RESV_USAGE_READ, true, timeout); @@ -555,7 +555,7 @@ int amdgpu_gem_metadata_ioctl(struct drm_device *dev, void *data, struct amdgpu_bo *robj; int r = -1; - DRM_DEBUG("%d \n", args->handle); + DRM_DEBUG("%d\n", args->handle); gobj = drm_gem_object_lookup(filp, args->handle); if (gobj == NULL) return -ENOENT; @@ -685,7 +685,7 @@ int amdgpu_gem_va_ioctl(struct drm_device *dev, void *data, if (args->va_address < AMDGPU_VA_RESERVED_SIZE) { dev_dbg(dev->dev, - "va_address 0x%LX is in reserved area 0x%LX\n", + "va_address 0x%llx is in reserved area 0x%llx\n", args->va_address, AMDGPU_VA_RESERVED_SIZE); return -EINVAL; } @@ -693,7 +693,7 @@ int amdgpu_gem_va_ioctl(struct drm_device *dev, void *data, if (args->va_address >= AMDGPU_GMC_HOLE_START && args->va_address < AMDGPU_GMC_HOLE_END) { dev_dbg(dev->dev, - "va_address 0x%LX is in VA hole 0x%LX-0x%LX\n", + "va_address 0x%llx is in VA hole 0x%llx-0x%llx\n", args->va_address, AMDGPU_GMC_HOLE_START, AMDGPU_GMC_HOLE_END); return -EINVAL; @@ -813,9 +813,9 @@ int amdgpu_gem_op_ioctl(struct drm_device *dev, void *data, int r; gobj = drm_gem_object_lookup(filp, args->handle); - if (gobj == NULL) { + if (!gobj) return -ENOENT; - } + robj = gem_to_amdgpu_bo(gobj); r = amdgpu_bo_reserve(robj, false); @@ -941,9 +941,9 @@ int amdgpu_mode_dumb_create(struct drm_file *file_priv, r = drm_gem_handle_create(file_priv, gobj, &handle); /* drop reference from allocate - handle holds it now */ drm_gem_object_put(gobj); - if (r) { + if (r) return r; - } + args->handle = handle; return 0; } -- cgit v1.2.3-70-g09d2 From 6be2ad4f0073c541146caa66c5ae936c955a8224 Mon Sep 17 00:00:00 2001 From: Alex Deucher Date: Wed, 9 Aug 2023 15:03:55 -0400 Subject: drm/amdgpu: don't allow userspace to create a doorbell BO We need the domains in amdgpu_drm.h for the kernel driver to manage the pool, but we don't want userspace using it until the code is ready. So reject for now. Acked-by: Felix Kuehling Signed-off-by: Alex Deucher --- drivers/gpu/drm/amd/amdgpu/amdgpu_gem.c | 4 ++++ 1 file changed, 4 insertions(+) (limited to 'drivers/gpu/drm/amd/amdgpu/amdgpu_gem.c') diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_gem.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_gem.c index 693b1fd1191a..ca4d2d430e28 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_gem.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_gem.c @@ -289,6 +289,10 @@ int amdgpu_gem_create_ioctl(struct drm_device *dev, void *data, uint32_t handle, initial_domain; int r; + /* reject DOORBELLs until userspace code to use it is available */ + if (args->in.domains & AMDGPU_GEM_DOMAIN_DOORBELL) + return -EINVAL; + /* reject invalid gem flags */ if (flags & ~(AMDGPU_GEM_CREATE_CPU_ACCESS_REQUIRED | AMDGPU_GEM_CREATE_NO_CPU_ACCESS | -- cgit v1.2.3-70-g09d2