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drm: remove legacy drm_pci_alloc/free abstraction 

The drm_pci_alloc/free abstraction of the dma-api is no longer required,
remove it.

Signed-off-by: Joseph Kogut <joseph.kogut@gmail.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: https://patchwork.freedesktop.org/patch/msgid/20210423020248.3427369-2-joseph.kogut@gmail.com
This commit is contained in:
Joseph Kogut 2021-04-22 19:02:44 -07:00 committed by Daniel Vetter
parent 70556e24e1
commit 304a351957
2 changed files with 0 additions and 62 deletions
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58
drivers/gpu/drm/drm_pci.c
View File

@ -41,64 +41,6 @@
/* List of devices hanging off drivers with stealth attach. */
static LIST_HEAD(legacy_dev_list);
static DEFINE_MUTEX(legacy_dev_list_lock);
/**
* drm_pci_alloc - Allocate a PCI consistent memory block, for DMA.
* @dev: DRM device
* @size: size of block to allocate
* @align: alignment of block
*
* FIXME: This is a needless abstraction of the Linux dma-api and should be
* removed.
*
* Return: A handle to the allocated memory block on success or NULL on
* failure.
*/
drm_dma_handle_t *drm_pci_alloc(struct drm_device * dev, size_t size, size_t align)
{
drm_dma_handle_t *dmah;
/* pci_alloc_consistent only guarantees alignment to the smallest
* PAGE_SIZE order which is greater than or equal to the requested size.
* Return NULL here for now to make sure nobody tries for larger alignment
*/
if (align > size)
return NULL;
dmah = kmalloc(sizeof(drm_dma_handle_t), GFP_KERNEL);
if (!dmah)
return NULL;
dmah->size = size;
dmah->vaddr = dma_alloc_coherent(dev->dev, size,
&dmah->busaddr,
GFP_KERNEL);
if (dmah->vaddr == NULL) {
kfree(dmah);
return NULL;
}
return dmah;
}
EXPORT_SYMBOL(drm_pci_alloc);
/**
* drm_pci_free - Free a PCI consistent memory block
* @dev: DRM device
* @dmah: handle to memory block
*
* FIXME: This is a needless abstraction of the Linux dma-api and should be
* removed.
*/
void drm_pci_free(struct drm_device * dev, drm_dma_handle_t * dmah)
{
dma_free_coherent(dev->dev, dmah->size, dmah->vaddr,
dmah->busaddr);
kfree(dmah);
}
EXPORT_SYMBOL(drm_pci_free);
#endif
static int drm_get_pci_domain(struct drm_device *dev)

4
include/drm/drm_legacy.h
View File

@ -194,10 +194,6 @@ void drm_legacy_idlelock_release(struct drm_lock_data *lock);
#ifdef CONFIG_PCI
struct drm_dma_handle *drm_pci_alloc(struct drm_device *dev, size_t size,
size_t align);
void drm_pci_free(struct drm_device *dev, struct drm_dma_handle *dmah);
int drm_legacy_pci_init(const struct drm_driver *driver,
struct pci_driver *pdriver);
void drm_legacy_pci_exit(const struct drm_driver *driver,