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drm/gem: convert to new unified vma manager

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Use the new vma manager instead of the old hashtable. Also convert all
drivers to use the new convenience helpers. This drops all the
(map_list.hash.key << PAGE_SHIFT) non-sense.

Locking and access-management is exactly the same as before with an
additional lock inside of the vma-manager, which strictly wouldn't be
needed for gem.

v2:
 - rebase on drm-next
 - init nodes via drm_vma_node_reset() in drm_gem.c
v3:
 - fix tegra
v4:
 - remove duplicate if (drm_vma_node_has_offset()) checks
 - inline now trivial drm_vma_node_offset_addr() calls
v5:
 - skip node-reset on gem-init due to kzalloc()
 - do not allow mapping gem-objects with offsets (backwards compat)
 - remove unneccessary casts

Cc: Inki Dae <inki.dae@samsung.com>
Cc: Rob Clark <robdclark@gmail.com>
Cc: Dave Airlie <airlied@redhat.com>
Cc: Thierry Reding <thierry.reding@gmail.com>
Signed-off-by: David Herrmann <dh.herrmann@gmail.com>
Acked-by: Patrik Jakobsson <patrik.r.jakobsson@gmail.com>
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Signed-off-by: Dave Airlie <airlied@gmail.com>
This commit is contained in:
David Herrmann
2013-07-24 21:07:52 +02:00
committed by Dave Airlie
parent fe3078fa5c
commit 0de23977cf
11 changed files with 62 additions and 186 deletions
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28
drivers/gpu/drm/omapdrm/omap_gem.c
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@@ -20,6 +20,7 @@
#include <linux/spinlock.h>
#include <linux/shmem_fs.h>
#include <drm/drm_vma_manager.h>
#include "omap_drv.h"
#include "omap_dmm_tiler.h"
@@ -308,21 +309,20 @@ uint32_t omap_gem_flags(struct drm_gem_object *obj)
static uint64_t mmap_offset(struct drm_gem_object *obj)
{
struct drm_device *dev = obj->dev;
int ret;
size_t size;
WARN_ON(!mutex_is_locked(&dev->struct_mutex));
if (!obj->map_list.map) {
/* Make it mmapable */
size_t size = omap_gem_mmap_size(obj);
int ret = _drm_gem_create_mmap_offset_size(obj, size);
if (ret) {
dev_err(dev->dev, "could not allocate mmap offset\n");
return 0;
}
/* Make it mmapable */
size = omap_gem_mmap_size(obj);
ret = _drm_gem_create_mmap_offset_size(obj, size);
if (ret) {
dev_err(dev->dev, "could not allocate mmap offset\n");
return 0;
}
return (uint64_t)obj->map_list.hash.key << PAGE_SHIFT;
return drm_vma_node_offset_addr(&obj->vma_node);
}
uint64_t omap_gem_mmap_offset(struct drm_gem_object *obj)
@@ -997,12 +997,11 @@ void omap_gem_describe(struct drm_gem_object *obj, struct seq_file *m)
{
struct drm_device *dev = obj->dev;
struct omap_gem_object *omap_obj = to_omap_bo(obj);
uint64_t off = 0;
uint64_t off;
WARN_ON(!mutex_is_locked(&dev->struct_mutex));
if (obj->map_list.map)
off = (uint64_t)obj->map_list.hash.key;
off = drm_vma_node_start(&obj->vma_node);
seq_printf(m, "%08x: %2d (%2d) %08llx %08Zx (%2d) %p %4d",
omap_obj->flags, obj->name, obj->refcount.refcount.counter,
@@ -1309,8 +1308,7 @@ void omap_gem_free_object(struct drm_gem_object *obj)
list_del(&omap_obj->mm_list);
if (obj->map_list.map)
drm_gem_free_mmap_offset(obj);
drm_gem_free_mmap_offset(obj);
/* this means the object is still pinned.. which really should
* not happen. I think..