提交 4962516b 编写于 作者: L Linus Torvalds

Merge branch 'drm-fixes' of git://people.freedesktop.org/~airlied/linux

* 'drm-fixes' of git://people.freedesktop.org/~airlied/linux:
  vmwgfx: fix incorrect VRAM size check in vmw_kms_fb_create()
  drm/radeon/kms: bail on BTC parts if MC ucode is missing
......@@ -3276,6 +3276,18 @@ int evergreen_init(struct radeon_device *rdev)
rdev->accel_working = false;
}
}
/* Don't start up if the MC ucode is missing on BTC parts.
* The default clocks and voltages before the MC ucode
* is loaded are not suffient for advanced operations.
*/
if (ASIC_IS_DCE5(rdev)) {
if (!rdev->mc_fw && !(rdev->flags & RADEON_IS_IGP)) {
DRM_ERROR("radeon: MC ucode required for NI+.\n");
return -EINVAL;
}
}
return 0;
}
......
......@@ -1093,7 +1093,6 @@ static struct drm_framebuffer *vmw_kms_fb_create(struct drm_device *dev,
struct vmw_surface *surface = NULL;
struct vmw_dma_buffer *bo = NULL;
struct ttm_base_object *user_obj;
u64 required_size;
int ret;
/**
......@@ -1102,8 +1101,9 @@ static struct drm_framebuffer *vmw_kms_fb_create(struct drm_device *dev,
* requested framebuffer.
*/
required_size = mode_cmd->pitch * mode_cmd->height;
if (unlikely(required_size > (u64) dev_priv->vram_size)) {
if (!vmw_kms_validate_mode_vram(dev_priv,
mode_cmd->pitch,
mode_cmd->height)) {
DRM_ERROR("VRAM size is too small for requested mode.\n");
return ERR_PTR(-ENOMEM);
}
......
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