From: CQ Tang <[email protected]> Our other backends return an actual error value upon failure. Do the same for stolen objects, which currently just return NULL on failure.
Signed-off-by: CQ Tang <[email protected]> Signed-off-by: Matthew Auld <[email protected]> Cc: Chris Wilson <[email protected]> --- drivers/gpu/drm/i915/display/intel_display.c | 2 +- drivers/gpu/drm/i915/display/intel_fbdev.c | 4 +-- drivers/gpu/drm/i915/display/intel_overlay.c | 2 +- drivers/gpu/drm/i915/gem/i915_gem_stolen.c | 36 +++++++++++--------- drivers/gpu/drm/i915/gt/intel_gt.c | 2 +- drivers/gpu/drm/i915/gt/intel_rc6.c | 4 +-- drivers/gpu/drm/i915/gt/intel_ringbuffer.c | 2 +- 7 files changed, 28 insertions(+), 24 deletions(-) diff --git a/drivers/gpu/drm/i915/display/intel_display.c b/drivers/gpu/drm/i915/display/intel_display.c index c3ac5a5c5185..3a7e324fab26 100644 --- a/drivers/gpu/drm/i915/display/intel_display.c +++ b/drivers/gpu/drm/i915/display/intel_display.c @@ -3071,7 +3071,7 @@ intel_alloc_initial_plane_obj(struct intel_crtc *crtc, base_aligned, size_aligned); mutex_unlock(&dev->struct_mutex); - if (!obj) + if (IS_ERR(obj)) return false; switch (plane_config->tiling) { diff --git a/drivers/gpu/drm/i915/display/intel_fbdev.c b/drivers/gpu/drm/i915/display/intel_fbdev.c index 68338669f054..8e31f254b0d9 100644 --- a/drivers/gpu/drm/i915/display/intel_fbdev.c +++ b/drivers/gpu/drm/i915/display/intel_fbdev.c @@ -141,10 +141,10 @@ static int intelfb_alloc(struct drm_fb_helper *helper, /* If the FB is too big, just don't use it since fbdev is not very * important and we should probably use that space with FBC or other * features. */ - obj = NULL; + obj = ERR_PTR(-ENODEV); if (size * 2 < dev_priv->stolen_usable_size) obj = i915_gem_object_create_stolen(dev_priv, size); - if (obj == NULL) + if (IS_ERR(obj)) obj = i915_gem_object_create_shmem(dev_priv, size); if (IS_ERR(obj)) { DRM_ERROR("failed to allocate framebuffer\n"); diff --git a/drivers/gpu/drm/i915/display/intel_overlay.c b/drivers/gpu/drm/i915/display/intel_overlay.c index 5efef9babadb..fb4e2047efdb 100644 --- a/drivers/gpu/drm/i915/display/intel_overlay.c +++ b/drivers/gpu/drm/i915/display/intel_overlay.c @@ -1306,7 +1306,7 @@ static int get_registers(struct intel_overlay *overlay, bool use_phys) mutex_lock(&i915->drm.struct_mutex); obj = i915_gem_object_create_stolen(i915, PAGE_SIZE); - if (obj == NULL) + if (IS_ERR(obj)) obj = i915_gem_object_create_internal(i915, PAGE_SIZE); if (IS_ERR(obj)) { err = PTR_ERR(obj); diff --git a/drivers/gpu/drm/i915/gem/i915_gem_stolen.c b/drivers/gpu/drm/i915/gem/i915_gem_stolen.c index bfbc3e3daf92..3dd295bb61f6 100644 --- a/drivers/gpu/drm/i915/gem/i915_gem_stolen.c +++ b/drivers/gpu/drm/i915/gem/i915_gem_stolen.c @@ -585,28 +585,32 @@ i915_gem_object_create_stolen(struct drm_i915_private *dev_priv, int ret; if (!drm_mm_initialized(&dev_priv->mm.stolen)) - return NULL; + return ERR_PTR(-ENODEV); if (size == 0) - return NULL; + return ERR_PTR(-EINVAL); stolen = kzalloc(sizeof(*stolen), GFP_KERNEL); if (!stolen) - return NULL; + return ERR_PTR(-ENOMEM); ret = i915_gem_stolen_insert_node(dev_priv, stolen, size, 4096); - if (ret) { - kfree(stolen); - return NULL; - } + if (ret) + goto err_free; obj = _i915_gem_object_create_stolen(dev_priv, stolen); - if (obj) - return obj; + if (obj == NULL) { + ret = -ENOMEM; + goto err_remove; + } + return obj; + +err_remove: i915_gem_stolen_remove_node(dev_priv, stolen); +err_free: kfree(stolen); - return NULL; + return ERR_PTR(ret); } struct drm_i915_gem_object * @@ -622,7 +626,7 @@ i915_gem_object_create_stolen_for_preallocated(struct drm_i915_private *dev_priv int ret; if (!drm_mm_initialized(&dev_priv->mm.stolen)) - return NULL; + return ERR_PTR(-ENODEV); lockdep_assert_held(&dev_priv->drm.struct_mutex); @@ -633,11 +637,11 @@ i915_gem_object_create_stolen_for_preallocated(struct drm_i915_private *dev_priv if (WARN_ON(size == 0) || WARN_ON(!IS_ALIGNED(size, I915_GTT_PAGE_SIZE)) || WARN_ON(!IS_ALIGNED(stolen_offset, I915_GTT_MIN_ALIGNMENT))) - return NULL; + return ERR_PTR(-EINVAL); stolen = kzalloc(sizeof(*stolen), GFP_KERNEL); if (!stolen) - return NULL; + return ERR_PTR(-ENOMEM); stolen->start = stolen_offset; stolen->size = size; @@ -647,7 +651,7 @@ i915_gem_object_create_stolen_for_preallocated(struct drm_i915_private *dev_priv if (ret) { DRM_DEBUG_DRIVER("failed to allocate stolen space\n"); kfree(stolen); - return NULL; + return ERR_PTR(ret); } obj = _i915_gem_object_create_stolen(dev_priv, stolen); @@ -655,7 +659,7 @@ i915_gem_object_create_stolen_for_preallocated(struct drm_i915_private *dev_priv DRM_DEBUG_DRIVER("failed to allocate stolen object\n"); i915_gem_stolen_remove_node(dev_priv, stolen); kfree(stolen); - return NULL; + return ERR_PTR(-ENOMEM); } /* Some objects just need physical mem from stolen space */ @@ -704,5 +708,5 @@ i915_gem_object_create_stolen_for_preallocated(struct drm_i915_private *dev_priv i915_gem_object_unpin_pages(obj); err: i915_gem_object_put(obj); - return NULL; + return ERR_PTR(ret); } diff --git a/drivers/gpu/drm/i915/gt/intel_gt.c b/drivers/gpu/drm/i915/gt/intel_gt.c index 0e5909ee0657..b45ac5c643de 100644 --- a/drivers/gpu/drm/i915/gt/intel_gt.c +++ b/drivers/gpu/drm/i915/gt/intel_gt.c @@ -331,7 +331,7 @@ static int intel_gt_init_scratch(struct intel_gt *gt, unsigned int size) int ret; obj = i915_gem_object_create_stolen(i915, size); - if (!obj) + if (IS_ERR(obj)) obj = i915_gem_object_create_internal(i915, size); if (IS_ERR(obj)) { DRM_ERROR("Failed to allocate scratch page\n"); diff --git a/drivers/gpu/drm/i915/gt/intel_rc6.c b/drivers/gpu/drm/i915/gt/intel_rc6.c index d6167dd592e9..dcf189f26624 100644 --- a/drivers/gpu/drm/i915/gt/intel_rc6.c +++ b/drivers/gpu/drm/i915/gt/intel_rc6.c @@ -299,7 +299,7 @@ static int vlv_rc6_init(struct intel_rc6 *rc6) pcbr_offset, I915_GTT_OFFSET_NONE, pctx_size); - if (!pctx) + if (IS_ERR(pctx)) return -ENOMEM; goto out; @@ -316,7 +316,7 @@ static int vlv_rc6_init(struct intel_rc6 *rc6) * memory, or any other relevant ranges. */ pctx = i915_gem_object_create_stolen(i915, pctx_size); - if (!pctx) { + if (IS_ERR(pctx)) { DRM_DEBUG("not enough stolen space for PCTX, disabling\n"); return -ENOMEM; } diff --git a/drivers/gpu/drm/i915/gt/intel_ringbuffer.c b/drivers/gpu/drm/i915/gt/intel_ringbuffer.c index 0747b8c9f768..e220c09c6f32 100644 --- a/drivers/gpu/drm/i915/gt/intel_ringbuffer.c +++ b/drivers/gpu/drm/i915/gt/intel_ringbuffer.c @@ -1274,7 +1274,7 @@ static struct i915_vma *create_ring_vma(struct i915_ggtt *ggtt, int size) struct i915_vma *vma; obj = i915_gem_object_create_stolen(i915, size); - if (!obj) + if (IS_ERR(obj)) obj = i915_gem_object_create_internal(i915, size); if (IS_ERR(obj)) return ERR_CAST(obj); -- 2.20.1 _______________________________________________ Intel-gfx mailing list [email protected] https://lists.freedesktop.org/mailman/listinfo/intel-gfx
