diff options
Diffstat (limited to 'drivers/gpu/drm/drm_scatter.c')
| -rw-r--r-- | drivers/gpu/drm/drm_scatter.c | 44 |
1 files changed, 23 insertions, 21 deletions
diff --git a/drivers/gpu/drm/drm_scatter.c b/drivers/gpu/drm/drm_scatter.c index c7823c863d4..1c78406f6e7 100644 --- a/drivers/gpu/drm/drm_scatter.c +++ b/drivers/gpu/drm/drm_scatter.c @@ -32,7 +32,8 @@ */ #include <linux/vmalloc.h> -#include "drmP.h" +#include <linux/slab.h> +#include <drm/drmP.h> #define DEBUG_SCATTER 0 @@ -45,7 +46,7 @@ static inline void *drm_vmalloc_dma(unsigned long size) #endif } -void drm_sg_cleanup(struct drm_sg_mem * entry) +static void drm_sg_cleanup(struct drm_sg_mem * entry) { struct page *page; int i; @@ -63,49 +64,58 @@ void drm_sg_cleanup(struct drm_sg_mem * entry) kfree(entry); } +void drm_legacy_sg_cleanup(struct drm_device *dev) +{ + if (drm_core_check_feature(dev, DRIVER_SG) && dev->sg && + !drm_core_check_feature(dev, DRIVER_MODESET)) { + drm_sg_cleanup(dev->sg); + dev->sg = NULL; + } +} #ifdef _LP64 # define ScatterHandle(x) (unsigned int)((x >> 32) + (x & ((1L << 32) - 1))) #else # define ScatterHandle(x) (unsigned int)(x) #endif -int drm_sg_alloc(struct drm_device *dev, struct drm_scatter_gather * request) +int drm_sg_alloc(struct drm_device *dev, void *data, + struct drm_file *file_priv) { + struct drm_scatter_gather *request = data; struct drm_sg_mem *entry; unsigned long pages, i, j; DRM_DEBUG("\n"); + if (drm_core_check_feature(dev, DRIVER_MODESET)) + return -EINVAL; + if (!drm_core_check_feature(dev, DRIVER_SG)) return -EINVAL; if (dev->sg) return -EINVAL; - entry = kmalloc(sizeof(*entry), GFP_KERNEL); + entry = kzalloc(sizeof(*entry), GFP_KERNEL); if (!entry) return -ENOMEM; - memset(entry, 0, sizeof(*entry)); pages = (request->size + PAGE_SIZE - 1) / PAGE_SIZE; DRM_DEBUG("size=%ld pages=%ld\n", request->size, pages); entry->pages = pages; - entry->pagelist = kmalloc(pages * sizeof(*entry->pagelist), GFP_KERNEL); + entry->pagelist = kcalloc(pages, sizeof(*entry->pagelist), GFP_KERNEL); if (!entry->pagelist) { kfree(entry); return -ENOMEM; } - memset(entry->pagelist, 0, pages * sizeof(*entry->pagelist)); - - entry->busaddr = kmalloc(pages * sizeof(*entry->busaddr), GFP_KERNEL); + entry->busaddr = kcalloc(pages, sizeof(*entry->busaddr), GFP_KERNEL); if (!entry->busaddr) { kfree(entry->pagelist); kfree(entry); return -ENOMEM; } - memset((void *)entry->busaddr, 0, pages * sizeof(*entry->busaddr)); entry->virtual = drm_vmalloc_dma(pages << PAGE_SHIFT); if (!entry->virtual) { @@ -183,17 +193,6 @@ int drm_sg_alloc(struct drm_device *dev, struct drm_scatter_gather * request) drm_sg_cleanup(entry); return -ENOMEM; } -EXPORT_SYMBOL(drm_sg_alloc); - - -int drm_sg_alloc_ioctl(struct drm_device *dev, void *data, - struct drm_file *file_priv) -{ - struct drm_scatter_gather *request = data; - - return drm_sg_alloc(dev, request); - -} int drm_sg_free(struct drm_device *dev, void *data, struct drm_file *file_priv) @@ -201,6 +200,9 @@ int drm_sg_free(struct drm_device *dev, void *data, struct drm_scatter_gather *request = data; struct drm_sg_mem *entry; + if (drm_core_check_feature(dev, DRIVER_MODESET)) + return -EINVAL; + if (!drm_core_check_feature(dev, DRIVER_SG)) return -EINVAL; |