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authorLinus Torvalds <torvalds@linux-foundation.org>2011-11-28 09:05:23 -0800
committerLinus Torvalds <torvalds@linux-foundation.org>2011-11-28 09:05:23 -0800
commit4244cb482e8eab18142162a27c8829a04585863a (patch)
treed13911f08bdf40ac17426c959ef9f76bb61c81ab /drivers/gpu/drm/exynos/exynos_drm_buf.c
parentf02877ce3ca8f87a086e3fc98bb9e022bbec70ec (diff)
parentb7b996da27e6f8b518a7c7753fa5b6dff2df6899 (diff)
Merge branch 'drm-fixes' of git://people.freedesktop.org/~airlied/linux
* 'drm-fixes' of git://people.freedesktop.org/~airlied/linux: drm/exynos: fixed wrong err ptr usage and destroy call in exeception drm/exynos: Add disable of manager drm/exynos: include linux/module.h drm/exynos: fix vblank bug. drm/exynos: changed buffer structure. drm/exynos: removed unnecessary variable. drm/exynos: use gem create function generically drm/exynos: checked for null pointer drm/exynos: added crtc dpms for disable crtc drm/exynos: removed meaningless parameter from fbdev update drm/exynos: restored kernel_fb_list when reiniting fb_helper drm/exynos: changed exynos_drm_display to exynos_drm_display_ops drm/exynos: added manager object to connector drm/exynos: fixed converting between display mode and timing drm/exynos: fixed connector flag with hpd and interlace scan for hdmi drm/exynos: added kms poll for handling hpd event
Diffstat (limited to 'drivers/gpu/drm/exynos/exynos_drm_buf.c')
-rw-r--r--drivers/gpu/drm/exynos/exynos_drm_buf.c62
1 files changed, 32 insertions, 30 deletions
diff --git a/drivers/gpu/drm/exynos/exynos_drm_buf.c b/drivers/gpu/drm/exynos/exynos_drm_buf.c
index 6f8afea94fc9..2bb07bca511a 100644
--- a/drivers/gpu/drm/exynos/exynos_drm_buf.c
+++ b/drivers/gpu/drm/exynos/exynos_drm_buf.c
@@ -27,82 +27,84 @@
#include "drm.h"
#include "exynos_drm_drv.h"
+#include "exynos_drm_gem.h"
#include "exynos_drm_buf.h"
-static DEFINE_MUTEX(exynos_drm_buf_lock);
-
static int lowlevel_buffer_allocate(struct drm_device *dev,
- struct exynos_drm_buf_entry *entry)
+ struct exynos_drm_gem_buf *buffer)
{
DRM_DEBUG_KMS("%s\n", __FILE__);
- entry->vaddr = dma_alloc_writecombine(dev->dev, entry->size,
- (dma_addr_t *)&entry->paddr, GFP_KERNEL);
- if (!entry->paddr) {
+ buffer->kvaddr = dma_alloc_writecombine(dev->dev, buffer->size,
+ &buffer->dma_addr, GFP_KERNEL);
+ if (!buffer->kvaddr) {
DRM_ERROR("failed to allocate buffer.\n");
return -ENOMEM;
}
- DRM_DEBUG_KMS("allocated : vaddr(0x%x), paddr(0x%x), size(0x%x)\n",
- (unsigned int)entry->vaddr, entry->paddr, entry->size);
+ DRM_DEBUG_KMS("vaddr(0x%lx), dma_addr(0x%lx), size(0x%lx)\n",
+ (unsigned long)buffer->kvaddr,
+ (unsigned long)buffer->dma_addr,
+ buffer->size);
return 0;
}
static void lowlevel_buffer_deallocate(struct drm_device *dev,
- struct exynos_drm_buf_entry *entry)
+ struct exynos_drm_gem_buf *buffer)
{
DRM_DEBUG_KMS("%s.\n", __FILE__);
- if (entry->paddr && entry->vaddr && entry->size)
- dma_free_writecombine(dev->dev, entry->size, entry->vaddr,
- entry->paddr);
+ if (buffer->dma_addr && buffer->size)
+ dma_free_writecombine(dev->dev, buffer->size, buffer->kvaddr,
+ (dma_addr_t)buffer->dma_addr);
else
- DRM_DEBUG_KMS("entry data is null.\n");
+ DRM_DEBUG_KMS("buffer data are invalid.\n");
}
-struct exynos_drm_buf_entry *exynos_drm_buf_create(struct drm_device *dev,
+struct exynos_drm_gem_buf *exynos_drm_buf_create(struct drm_device *dev,
unsigned int size)
{
- struct exynos_drm_buf_entry *entry;
+ struct exynos_drm_gem_buf *buffer;
DRM_DEBUG_KMS("%s.\n", __FILE__);
+ DRM_DEBUG_KMS("desired size = 0x%x\n", size);
- entry = kzalloc(sizeof(*entry), GFP_KERNEL);
- if (!entry) {
- DRM_ERROR("failed to allocate exynos_drm_buf_entry.\n");
+ buffer = kzalloc(sizeof(*buffer), GFP_KERNEL);
+ if (!buffer) {
+ DRM_ERROR("failed to allocate exynos_drm_gem_buf.\n");
return ERR_PTR(-ENOMEM);
}
- entry->size = size;
+ buffer->size = size;
/*
* allocate memory region with size and set the memory information
- * to vaddr and paddr of a entry object.
+ * to vaddr and dma_addr of a buffer object.
*/
- if (lowlevel_buffer_allocate(dev, entry) < 0) {
- kfree(entry);
- entry = NULL;
+ if (lowlevel_buffer_allocate(dev, buffer) < 0) {
+ kfree(buffer);
+ buffer = NULL;
return ERR_PTR(-ENOMEM);
}
- return entry;
+ return buffer;
}
void exynos_drm_buf_destroy(struct drm_device *dev,
- struct exynos_drm_buf_entry *entry)
+ struct exynos_drm_gem_buf *buffer)
{
DRM_DEBUG_KMS("%s.\n", __FILE__);
- if (!entry) {
- DRM_DEBUG_KMS("entry is null.\n");
+ if (!buffer) {
+ DRM_DEBUG_KMS("buffer is null.\n");
return;
}
- lowlevel_buffer_deallocate(dev, entry);
+ lowlevel_buffer_deallocate(dev, buffer);
- kfree(entry);
- entry = NULL;
+ kfree(buffer);
+ buffer = NULL;
}
MODULE_AUTHOR("Inki Dae <inki.dae@samsung.com>");