renegade-project/linux-next
2
0
Fork 0
mirror of https://github.com/edk2-porting/linux-next.git synced 2025-01-06 12:44:14 +08:00
Code

drm/exynos: set buffer type from exporter.

Browse Source 
when fd is imported to gem, whether the memory type from exporter
is contigous or not should be set to gem flag so that drm-based
driver can aware of the memory type.

Signed-off-by: Inki Dae <inki.dae@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
This commit is contained in:
Inki Dae 2012-06-07 16:15:07 +09:00
parent c62bc752f2
commit 47fcdce2d5
1 changed files with 20 additions and 7 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

27
drivers/gpu/drm/exynos/exynos_drm_dmabuf.c
View File

@ -25,6 +25,7 @@
#include "drmP.h"
#include "drm.h"
#include "exynos_drm.h"
#include "exynos_drm_drv.h"
#include "exynos_drm_gem.h"
@ -190,7 +191,7 @@ struct drm_gem_object *exynos_dmabuf_prime_import(struct drm_device *drm_dev,
struct exynos_drm_gem_obj *exynos_gem_obj;
struct exynos_drm_gem_buf *buffer;
struct page *page;
int ret, i = 0;
int ret;
DRM_DEBUG_PRIME("%s\n", __FILE__);
@ -240,13 +241,25 @@ struct drm_gem_object *exynos_dmabuf_prime_import(struct drm_device *drm_dev,
}
sgl = sgt->sgl;
buffer->dma_addr = sg_dma_address(sgl);
while (i < sgt->nents) {
buffer->pages[i] = sg_page(sgl);
buffer->size += sg_dma_len(sgl);
sgl = sg_next(sgl);
i++;
if (sgt->nents == 1) {
buffer->dma_addr = sg_dma_address(sgt->sgl);
buffer->size = sg_dma_len(sgt->sgl);
/* always physically continuous memory if sgt->nents is 1. */
exynos_gem_obj->flags |= EXYNOS_BO_CONTIG;
} else {
unsigned int i = 0;
buffer->dma_addr = sg_dma_address(sgl);
while (i < sgt->nents) {
buffer->pages[i] = sg_page(sgl);
buffer->size += sg_dma_len(sgl);
sgl = sg_next(sgl);
i++;
}
exynos_gem_obj->flags |= EXYNOS_BO_NONCONTIG;
}
exynos_gem_obj->buffer = buffer;