Displaying 15 results from an estimated 15 matches for "kmap_use_count".
2020 Sep 29
0
[PATCH v3 1/7] drm/vram-helper: Remove invariant parameters from internal kmap function
..._gem_vram_unpin);
-static void *drm_gem_vram_kmap_locked(struct drm_gem_vram_object *gbo,
- bool map, bool *is_iomem)
+static void *drm_gem_vram_kmap_locked(struct drm_gem_vram_object *gbo)
{
int ret;
struct ttm_bo_kmap_obj *kmap = &gbo->kmap;
+ bool is_iomem;
if (gbo->kmap_use_count > 0)
goto out;
- if (kmap->virtual || !map)
+ if (kmap->virtual)
goto out;
ret = ttm_bo_kmap(&gbo->bo, 0, gbo->bo.num_pages, kmap);
@@ -399,15 +399,10 @@ static void *drm_gem_vram_kmap_locked(struct drm_gem_vram_object *gbo,
return ERR_PTR(ret);
out:
- if (!kmap...
2020 Oct 15
0
[PATCH v4 01/10] drm/vram-helper: Remove invariant parameters from internal kmap function
..._gem_vram_unpin);
-static void *drm_gem_vram_kmap_locked(struct drm_gem_vram_object *gbo,
- bool map, bool *is_iomem)
+static void *drm_gem_vram_kmap_locked(struct drm_gem_vram_object *gbo)
{
int ret;
struct ttm_bo_kmap_obj *kmap = &gbo->kmap;
+ bool is_iomem;
if (gbo->kmap_use_count > 0)
goto out;
- if (kmap->virtual || !map)
- goto out;
-
ret = ttm_bo_kmap(&gbo->bo, 0, gbo->bo.num_pages, kmap);
if (ret)
return ERR_PTR(ret);
out:
- if (!kmap->virtual) {
- if (is_iomem)
- *is_iomem = false;
- return NULL; /* not mapped; don't increment...
2020 Oct 15
1
[PATCH v4 06/10] drm/gem: Use struct dma_buf_map in GEM vmap ops and convert GEM backends
...X-License-Identifier: GPL-2.0-or-later
+#include <linux/dma-buf-map.h>
#include <linux/module.h>
#include <drm/drm_debugfs.h>
@@ -113,8 +114,8 @@ static void drm_gem_vram_cleanup(struct drm_gem_vram_object *gbo)
* up; only release the GEM object.
*/
- WARN_ON(gbo->kmap_use_count);
- WARN_ON(gbo->kmap.virtual);
+ WARN_ON(gbo->vmap_use_count);
+ WARN_ON(dma_buf_map_is_set(&gbo->map));
drm_gem_object_release(&gbo->bo.base);
}
@@ -382,29 +383,37 @@ int drm_gem_vram_unpin(struct drm_gem_vram_object *gbo)
}
EXPORT_SYMBOL(drm_gem_vram_unpin);
-static...
2020 Oct 15
0
[PATCH v4 06/10] drm/gem: Use struct dma_buf_map in GEM vmap ops and convert GEM backends
...lude <linux/dma-buf-map.h>
> #include <linux/module.h>
>
> #include <drm/drm_debugfs.h>
> @@ -113,8 +114,8 @@ static void drm_gem_vram_cleanup(struct drm_gem_vram_object *gbo)
> * up; only release the GEM object.
> */
>
> - WARN_ON(gbo->kmap_use_count);
> - WARN_ON(gbo->kmap.virtual);
> + WARN_ON(gbo->vmap_use_count);
> + WARN_ON(dma_buf_map_is_set(&gbo->map));
>
> drm_gem_object_release(&gbo->bo.base);
> }
> @@ -382,29 +383,37 @@ int drm_gem_vram_unpin(struct drm_gem_vram_object *gbo)
> }
&g...
2020 Oct 28
10
[PATCH v6 00/10] Support GEM object mappings from I/O memory
DRM's fbdev console uses regular load and store operations to update
framebuffer memory. The bochs driver on sparc64 requires the use of
I/O-specific load and store operations. We have a workaround, but need
a long-term solution to the problem.
This patchset changes GEM's vmap/vunmap interfaces to forward pointers
of type struct dma_buf_map and updates the generic fbdev emulation to
use
2020 Nov 03
10
[PATCH v7 00/10] Support GEM object mappings from I/O memory
DRM's fbdev console uses regular load and store operations to update
framebuffer memory. The bochs driver on sparc64 requires the use of
I/O-specific load and store operations. We have a workaround, but need
a long-term solution to the problem.
This patchset changes GEM's vmap/vunmap interfaces to forward pointers
of type struct dma_buf_map and updates the generic fbdev emulation to
use
2020 Nov 03
10
[PATCH v7 00/10] Support GEM object mappings from I/O memory
DRM's fbdev console uses regular load and store operations to update
framebuffer memory. The bochs driver on sparc64 requires the use of
I/O-specific load and store operations. We have a workaround, but need
a long-term solution to the problem.
This patchset changes GEM's vmap/vunmap interfaces to forward pointers
of type struct dma_buf_map and updates the generic fbdev emulation to
use
2020 Nov 03
10
[PATCH v7 00/10] Support GEM object mappings from I/O memory
DRM's fbdev console uses regular load and store operations to update
framebuffer memory. The bochs driver on sparc64 requires the use of
I/O-specific load and store operations. We have a workaround, but need
a long-term solution to the problem.
This patchset changes GEM's vmap/vunmap interfaces to forward pointers
of type struct dma_buf_map and updates the generic fbdev emulation to
use
2020 Oct 15
19
[PATCH v4 00/10] Support GEM object mappings from I/O memory
DRM's fbdev console uses regular load and store operations to update
framebuffer memory. The bochs driver on sparc64 requires the use of
I/O-specific load and store operations. We have a workaround, but need
a long-term solution to the problem.
This patchset changes GEM's vmap/vunmap interfaces to forward pointers
of type struct dma_buf_map and updates the generic fbdev emulation to
use
2020 Sep 29
14
[PATCH v3 0/7] Support GEM object mappings from I/O memory
DRM's fbdev console uses regular load and store operations to update
framebuffer memory. The bochs driver on sparc64 requires the use of
I/O-specific load and store operations. We have a workaround, but need
a long-term solution to the problem.
This patchset changes GEM's vmap/vunmap interfaces to forward pointers
of type struct dma_buf_map and updates the generic fbdev emulation to
use
2020 Sep 29
14
[PATCH v3 0/7] Support GEM object mappings from I/O memory
DRM's fbdev console uses regular load and store operations to update
framebuffer memory. The bochs driver on sparc64 requires the use of
I/O-specific load and store operations. We have a workaround, but need
a long-term solution to the problem.
This patchset changes GEM's vmap/vunmap interfaces to forward pointers
of type struct dma_buf_map and updates the generic fbdev emulation to
use
2020 Sep 29
0
[PATCH v3 3/7] drm/gem: Use struct dma_buf_map in GEM vmap ops and convert GEM backends
...L(drm_gem_vram_unpin);
-static void *drm_gem_vram_kmap_locked(struct drm_gem_vram_object *gbo)
+static int drm_gem_vram_kmap_locked(struct drm_gem_vram_object *gbo,
+ struct dma_buf_map *map)
{
int ret;
struct ttm_bo_kmap_obj *kmap = &gbo->kmap;
- bool is_iomem;
if (gbo->kmap_use_count > 0)
goto out;
@@ -396,17 +397,30 @@ static void *drm_gem_vram_kmap_locked(struct drm_gem_vram_object *gbo)
ret = ttm_bo_kmap(&gbo->bo, 0, gbo->bo.num_pages, kmap);
if (ret)
- return ERR_PTR(ret);
+ return ret;
out:
- if (!kmap->virtual)
- return NULL; /* not mapped;...
2020 Oct 20
15
[PATCH v5 00/10] Support GEM object mappings from I/O memory
DRM's fbdev console uses regular load and store operations to update
framebuffer memory. The bochs driver on sparc64 requires the use of
I/O-specific load and store operations. We have a workaround, but need
a long-term solution to the problem.
This patchset changes GEM's vmap/vunmap interfaces to forward pointers
of type struct dma_buf_map and updates the generic fbdev emulation to
use
2019 Sep 09
5
[PATCH 0/4] Merge VRAM MM and GEM VRAM source files
VRAM MM and GEM VRAM are only used with each other. This patch set
moves VRAM MM into GEM VRAM source files and cleans up the helper's
public interface.
Thomas Zimmermann (4):
drm/vram: Move VRAM memory manager to GEM VRAM implementation
drm/vram: Have VRAM MM call GEM VRAM functions directly
drm/vram: Unexport internal functions of VRAM MM
drm/vram: Unconditonally set BO call-back
2019 Sep 11
4
[PATCH v2 0/4] Merge VRAM MM and GEM VRAM source files
VRAM MM and GEM VRAM are only used with each other. This patch set
moves VRAM MM into GEM VRAM source files and cleans up the helper's
public interface.
Version 2 of the patch set doesn't contain functional changes. I'm
reposting due to the rebasing onto the debugfs patches.
v2:
* updated for debugfs support
* fixed typos in comments
Thomas Zimmermann (4):
drm/vram: Move VRAM