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drm/tegra: Add support for tiled buffer objects

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The gr2d and gr3d engines work more efficiently on buffers with a tiled
memory layout. Allow created buffers to be marked as tiled so that the
display controller can scan them out properly.

Signed-off-by: Thierry Reding <thierry.reding@avionic-design.de>
Signed-off-by: Thierry Reding <treding@nvidia.com>
This commit is contained in:
Thierry Reding
2013-10-04 22:34:01 +02:00
committed by Thierry Reding
parent 5f60ed0d84
commit 773af77fc4
8 changed files with 60 additions and 9 deletions
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13
drivers/gpu/drm/tegra/gem.c
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@@ -18,6 +18,8 @@
* GNU General Public License for more details.
*/
#include <drm/tegra_drm.h>
#include "gem.h"
static inline struct tegra_bo *host1x_to_tegra_bo(struct host1x_bo *bo)
@@ -97,7 +99,8 @@ static void tegra_bo_destroy(struct drm_device *drm, struct tegra_bo *bo)
dma_free_writecombine(drm->dev, bo->gem.size, bo->vaddr, bo->paddr);
}
struct tegra_bo *tegra_bo_create(struct drm_device *drm, unsigned int size)
struct tegra_bo *tegra_bo_create(struct drm_device *drm, unsigned int size,
unsigned long flags)
{
struct tegra_bo *bo;
int err;
@@ -126,6 +129,9 @@ struct tegra_bo *tegra_bo_create(struct drm_device *drm, unsigned int size)
if (err)
goto err_mmap;
if (flags & DRM_TEGRA_GEM_CREATE_TILED)
bo->flags |= TEGRA_BO_TILED;
return bo;
err_mmap:
@@ -142,12 +148,13 @@ err_dma:
struct tegra_bo *tegra_bo_create_with_handle(struct drm_file *file,
struct drm_device *drm,
unsigned int size,
unsigned long flags,
unsigned int *handle)
{
struct tegra_bo *bo;
int ret;
bo = tegra_bo_create(drm, size);
bo = tegra_bo_create(drm, size, flags);
if (IS_ERR(bo))
return bo;
@@ -187,7 +194,7 @@ int tegra_bo_dumb_create(struct drm_file *file, struct drm_device *drm,
if (args->size < args->pitch * args->height)
args->size = args->pitch * args->height;
bo = tegra_bo_create_with_handle(file, drm, args->size,
bo = tegra_bo_create_with_handle(file, drm, args->size, 0,
&args->handle);
if (IS_ERR(bo))
return PTR_ERR(bo);