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drm/udl: call begin/end cpu access at more appropriate time 

We need to call these before we transfer the damaged areas to the device
not before/after we setup the long lived vmaps.

Signed-off-by: Dave Airlie <airlied@redhat.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
hifive-unleashed-5.1
Dave Airlie 2012-07-30 14:06:55 +10:00 committed by Daniel Vetter
parent ec6f1bb90c
commit 32ecd24264
2 changed files with 20 additions and 9 deletions
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22
drivers/gpu/drm/udl/udl_fb.c
View File

@ -13,6 +13,7 @@
#include <linux/module.h>
#include <linux/slab.h>
#include <linux/fb.h>
#include <linux/dma-buf.h>
#include "drmP.h"
#include "drm.h"
@ -377,16 +378,33 @@ static int udl_user_framebuffer_dirty(struct drm_framebuffer *fb,
{
struct udl_framebuffer *ufb = to_udl_fb(fb);
int i;
int ret = 0;
if (!ufb->active_16)
return 0;
if (ufb->obj->base.import_attach) {
ret = dma_buf_begin_cpu_access(ufb->obj->base.import_attach->dmabuf,
0, ufb->obj->base.size,
DMA_FROM_DEVICE);
if (ret)
return ret;
}
for (i = 0; i < num_clips; i++) {
udl_handle_damage(ufb, clips[i].x1, clips[i].y1,
ret = udl_handle_damage(ufb, clips[i].x1, clips[i].y1,
clips[i].x2 - clips[i].x1,
clips[i].y2 - clips[i].y1);
if (ret)
break;
}
return 0;
if (ufb->obj->base.import_attach) {
dma_buf_end_cpu_access(ufb->obj->base.import_attach->dmabuf,
0, ufb->obj->base.size,
DMA_FROM_DEVICE);
}
return ret;
}
static void udl_user_framebuffer_destroy(struct drm_framebuffer *fb)

7
drivers/gpu/drm/udl/udl_gem.c
View File

@ -181,11 +181,6 @@ int udl_gem_vmap(struct udl_gem_object *obj)
int ret;
if (obj->base.import_attach) {
ret = dma_buf_begin_cpu_access(obj->base.import_attach->dmabuf,
0, obj->base.size, DMA_BIDIRECTIONAL);
if (ret)
return -EINVAL;
obj->vmapping = dma_buf_vmap(obj->base.import_attach->dmabuf);
if (!obj->vmapping)
return -ENOMEM;
@ -206,8 +201,6 @@ void udl_gem_vunmap(struct udl_gem_object *obj)
{
if (obj->base.import_attach) {
dma_buf_vunmap(obj->base.import_attach->dmabuf, obj->vmapping);
dma_buf_end_cpu_access(obj->base.import_attach->dmabuf, 0,
obj->base.size, DMA_BIDIRECTIONAL);
return;
}