The hibmc driver aligns scanlines to 16 bytes. Adding the pitch alignment
as an argument to drm_gem_vram_fill_create_dumb() allows to use the generic
implementation with hibmc. A value of 0 disables scanline pitches.
Signed-off-by: Thomas Zimmermann <tzimmerm...@suse.de>
---
drivers/gpu/drm/drm_gem_vram_helper.c | 10 ++--
.../gpu/drm/hisilicon/hibmc/hibmc_drm_drv.h | 4 --
drivers/gpu/drm/hisilicon/hibmc/hibmc_ttm.c | 48 +------------------
include/drm/drm_gem_vram_helper.h | 1 +
4 files changed, 10 insertions(+), 53 deletions(-)
diff --git a/drivers/gpu/drm/drm_gem_vram_helper.c
b/drivers/gpu/drm/drm_gem_vram_helper.c
index 666cb4c22bb9..f098784e7dfd 100644
--- a/drivers/gpu/drm/drm_gem_vram_helper.c
+++ b/drivers/gpu/drm/drm_gem_vram_helper.c
@@ -485,6 +485,7 @@ EXPORT_SYMBOL(drm_gem_vram_vunmap);
* @dev: the DRM device
* @bdev: the TTM BO device managing the buffer object
* @pg_align: the buffer's alignment in multiples of the page size
+ * @pitch_align: the scanline's alignment in powers of 2
* @interruptible: sleep interruptible if waiting for memory
* @args: the arguments as provided to \
&struct drm_driver.dumb_create
@@ -502,6 +503,7 @@ int drm_gem_vram_fill_create_dumb(struct drm_file *file,
struct drm_device *dev,
struct ttm_bo_device *bdev,
unsigned long pg_align,
+ unsigned long pitch_align,
bool interruptible,
struct drm_mode_create_dumb *args)
{
@@ -510,7 +512,9 @@ int drm_gem_vram_fill_create_dumb(struct drm_file *file,
int ret;
u32 handle;
- pitch = args->width * ((args->bpp + 7) / 8);
+ pitch = args->width * DIV_ROUND_UP(args->bpp, 8);
+ if (pitch_align)
+ pitch = ALIGN(pitch, pitch_align);
size = pitch * args->height;
size = roundup(size, PAGE_SIZE);
@@ -612,8 +616,8 @@ int drm_gem_vram_driver_dumb_create(struct drm_file *file,
if (WARN_ONCE(!dev->vram_mm, "VRAM MM not initialized"))
return -EINVAL;
- return drm_gem_vram_fill_create_dumb(file, dev, &dev->vram_mm->bdev, 0,
- false, args);
+ return drm_gem_vram_fill_create_dumb(file, dev, &dev->vram_mm->bdev,
+ 0, 0, false, args);
}
EXPORT_SYMBOL(drm_gem_vram_driver_dumb_create);
diff --git a/drivers/gpu/drm/hisilicon/hibmc/hibmc_drm_drv.h
b/drivers/gpu/drm/hisilicon/hibmc/hibmc_drm_drv.h
index 8eb7258b236a..50a0c1f9d211 100644
--- a/drivers/gpu/drm/hisilicon/hibmc/hibmc_drm_drv.h
+++ b/drivers/gpu/drm/hisilicon/hibmc/hibmc_drm_drv.h
@@ -18,7 +18,6 @@
#include <drm/drm_framebuffer.h>
struct drm_device;
-struct drm_gem_object;
struct hibmc_drm_private {
/* hw */
@@ -41,9 +40,6 @@ void hibmc_set_current_gate(struct hibmc_drm_private *priv,
int hibmc_de_init(struct hibmc_drm_private *priv);
int hibmc_vdac_init(struct hibmc_drm_private *priv);
-int hibmc_gem_create(struct drm_device *dev, u32 size, bool iskernel,
- struct drm_gem_object **obj);
-
int hibmc_mm_init(struct hibmc_drm_private *hibmc);
void hibmc_mm_fini(struct hibmc_drm_private *hibmc);
int hibmc_dumb_create(struct drm_file *file, struct drm_device *dev,
diff --git a/drivers/gpu/drm/hisilicon/hibmc/hibmc_ttm.c
b/drivers/gpu/drm/hisilicon/hibmc/hibmc_ttm.c
index f6d25b85c209..0af5d966a480 100644
--- a/drivers/gpu/drm/hisilicon/hibmc/hibmc_ttm.c
+++ b/drivers/gpu/drm/hisilicon/hibmc/hibmc_ttm.c
@@ -47,55 +47,11 @@ void hibmc_mm_fini(struct hibmc_drm_private *hibmc)
drm_vram_helper_release_mm(hibmc->dev);
}
-int hibmc_gem_create(struct drm_device *dev, u32 size, bool iskernel,
- struct drm_gem_object **obj)
-{
- struct drm_gem_vram_object *gbo;
- int ret;
-
- *obj = NULL;
-
- size = roundup(size, PAGE_SIZE);
- if (size == 0)
- return -EINVAL;
-
- gbo = drm_gem_vram_create(dev, &dev->vram_mm->bdev, size, 0, false);
- if (IS_ERR(gbo)) {
- ret = PTR_ERR(gbo);
- if (ret != -ERESTARTSYS)
- DRM_ERROR("failed to allocate GEM object: %d\n", ret);
- return ret;
- }
- *obj = &gbo->bo.base;
- return 0;
-}
-
int hibmc_dumb_create(struct drm_file *file, struct drm_device *dev,
struct drm_mode_create_dumb *args)
{
- struct drm_gem_object *gobj;
- u32 handle;
- int ret;
-
- args->pitch = ALIGN(args->width * DIV_ROUND_UP(args->bpp, 8), 16);
- args->size = args->pitch * args->height;
-
- ret = hibmc_gem_create(dev, args->size, false,
- &gobj);
- if (ret) {
- DRM_ERROR("failed to create GEM object: %d\n", ret);
- return ret;
- }
-
- ret = drm_gem_handle_create(file, gobj, &handle);
- drm_gem_object_put_unlocked(gobj);
- if (ret) {
- DRM_ERROR("failed to unreference GEM object: %d\n", ret);
- return ret;
- }
-
- args->handle = handle;
- return 0;
+ return drm_gem_vram_fill_create_dumb(file, dev, &dev->vram_mm->bdev,
+ 0, 16, false, args);
}
const struct drm_mode_config_funcs hibmc_mode_funcs = {
diff --git a/include/drm/drm_gem_vram_helper.h
b/include/drm/drm_gem_vram_helper.h
index e040541a105f..c642b4cb6600 100644
--- a/include/drm/drm_gem_vram_helper.h
+++ b/include/drm/drm_gem_vram_helper.h
@@ -113,6 +113,7 @@ int drm_gem_vram_fill_create_dumb(struct drm_file *file,
struct drm_device *dev,
struct ttm_bo_device *bdev,
unsigned long pg_align,
+ unsigned long pitch_align,
bool interruptible,
struct drm_mode_create_dumb *args);
--
2.23.0
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