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drm/exynos: set buffer type from exporter.

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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
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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;