Support private objects for stolen memory in psb_gem_create() and convert users to psb_gem_create(). For stolen memory, psb_gem_create() now initializes the GEM object via drm_gem_private_object_init().
In the fbdev setup, replace the open-coded initialization of struct gtt_range with a call to psb_gem_create(). Use drm_gem_object_put() for release.
In the cursor setup, use psb_gem_create() and get a real GEM object. Previously the allocated instance of struct gtt_range was only partially initialized. Release the cursor GEM object in gma_crtc_destroy(). The release was missing from the original code.
With the conversion of all callers to psb_gem_create(), the extern declarations of psb_gtt_alloc_range, psb_gtt_free_range and psb_gem_object_func are not required any longer. Declare them as static inline.
Signed-off-by: Thomas Zimmermann tzimmermann@suse.de --- drivers/gpu/drm/gma500/framebuffer.c | 44 ++++++---------------- drivers/gpu/drm/gma500/gem.c | 22 ++++++----- drivers/gpu/drm/gma500/gem.h | 5 --- drivers/gpu/drm/gma500/gma_display.c | 3 ++ drivers/gpu/drm/gma500/psb_intel_display.c | 5 +-- 5 files changed, 29 insertions(+), 50 deletions(-)
diff --git a/drivers/gpu/drm/gma500/framebuffer.c b/drivers/gpu/drm/gma500/framebuffer.c index ce92d11bd20f..3ea6679ccd38 100644 --- a/drivers/gpu/drm/gma500/framebuffer.c +++ b/drivers/gpu/drm/gma500/framebuffer.c @@ -224,31 +224,6 @@ static struct drm_framebuffer *psb_framebuffer_create return fb; }
-/** - * psbfb_alloc - allocate frame buffer memory - * @dev: the DRM device - * @aligned_size: space needed - * - * Allocate the frame buffer. In the usual case we get a GTT range that - * is stolen memory backed and life is simple. If there isn't sufficient - * we fail as we don't have the virtual mapping space to really vmap it - * and the kernel console code can't handle non linear framebuffers. - * - * Re-address this as and if the framebuffer layer grows this ability. - */ -static struct gtt_range *psbfb_alloc(struct drm_device *dev, int aligned_size) -{ - struct gtt_range *backing; - /* Begin by trying to use stolen memory backing */ - backing = psb_gtt_alloc_range(dev, aligned_size, "fb", 1, PAGE_SIZE); - if (backing) { - backing->gem.funcs = &psb_gem_object_funcs; - drm_gem_private_object_init(dev, &backing->gem, aligned_size); - return backing; - } - return NULL; -} - /** * psbfb_create - create a framebuffer * @fb_helper: the framebuffer helper @@ -268,6 +243,7 @@ static int psbfb_create(struct drm_fb_helper *fb_helper, int size; int ret; struct gtt_range *backing; + struct drm_gem_object *obj; u32 bpp, depth;
mode_cmd.width = sizes->surface_width; @@ -285,24 +261,25 @@ static int psbfb_create(struct drm_fb_helper *fb_helper, size = ALIGN(size, PAGE_SIZE);
/* Allocate the framebuffer in the GTT with stolen page backing */ - backing = psbfb_alloc(dev, size); - if (backing == NULL) - return -ENOMEM; + backing = psb_gem_create(dev, size, "fb", true, PAGE_SIZE); + if (IS_ERR(backing)) + return PTR_ERR(backing); + obj = &backing->gem;
memset(dev_priv->vram_addr + backing->offset, 0, size);
info = drm_fb_helper_alloc_fbi(fb_helper); if (IS_ERR(info)) { ret = PTR_ERR(info); - goto out; + goto err_drm_gem_object_put; }
mode_cmd.pixel_format = drm_mode_legacy_fb_format(bpp, depth);
- fb = psb_framebuffer_create(dev, &mode_cmd, &backing->gem); + fb = psb_framebuffer_create(dev, &mode_cmd, obj); if (IS_ERR(fb)) { ret = PTR_ERR(fb); - goto out; + goto err_drm_gem_object_put; }
fb_helper->fb = fb; @@ -333,8 +310,9 @@ static int psbfb_create(struct drm_fb_helper *fb_helper, dev_dbg(dev->dev, "allocated %dx%d fb\n", fb->width, fb->height);
return 0; -out: - psb_gtt_free_range(dev, backing); + +err_drm_gem_object_put: + drm_gem_object_put(obj); return ret; }
diff --git a/drivers/gpu/drm/gma500/gem.c b/drivers/gpu/drm/gma500/gem.c index 8f4bcf9cf912..4acab39a583a 100644 --- a/drivers/gpu/drm/gma500/gem.c +++ b/drivers/gpu/drm/gma500/gem.c @@ -90,7 +90,7 @@ void psb_gtt_unpin(struct gtt_range *gt) mutex_unlock(&dev_priv->gtt_mutex); }
-void psb_gtt_free_range(struct drm_device *dev, struct gtt_range *gt) +static void psb_gtt_free_range(struct drm_device *dev, struct gtt_range *gt) { /* Undo the mmap pin if we are destroying the object */ if (gt->mmapping) { @@ -122,13 +122,13 @@ static const struct vm_operations_struct psb_gem_vm_ops = { .close = drm_gem_vm_close, };
-const struct drm_gem_object_funcs psb_gem_object_funcs = { +static const struct drm_gem_object_funcs psb_gem_object_funcs = { .free = psb_gem_free_object, .vm_ops = &psb_gem_vm_ops, };
-struct gtt_range *psb_gtt_alloc_range(struct drm_device *dev, int len, - const char *name, int backed, u32 align) +static struct gtt_range *psb_gtt_alloc_range(struct drm_device *dev, int len, + const char *name, int backed, u32 align) { struct drm_psb_private *dev_priv = to_drm_psb_private(dev); struct gtt_range *gt; @@ -182,12 +182,16 @@ psb_gem_create(struct drm_device *dev, u64 size, const char *name, bool stolen,
obj->funcs = &psb_gem_object_funcs;
- ret = drm_gem_object_init(dev, obj, size); - if (ret) - goto err_psb_gtt_free_range; + if (stolen) { + drm_gem_private_object_init(dev, obj, size); + } else { + ret = drm_gem_object_init(dev, obj, size); + if (ret) + goto err_psb_gtt_free_range;
- /* Limit the object to 32-bit mappings */ - mapping_set_gfp_mask(obj->filp->f_mapping, GFP_KERNEL | __GFP_DMA32); + /* Limit the object to 32-bit mappings */ + mapping_set_gfp_mask(obj->filp->f_mapping, GFP_KERNEL | __GFP_DMA32); + }
return gt;
diff --git a/drivers/gpu/drm/gma500/gem.h b/drivers/gpu/drm/gma500/gem.h index ad76127dc719..6b67c58cbed5 100644 --- a/drivers/gpu/drm/gma500/gem.h +++ b/drivers/gpu/drm/gma500/gem.h @@ -12,14 +12,9 @@
struct drm_device;
-extern const struct drm_gem_object_funcs psb_gem_object_funcs; - struct gtt_range * psb_gem_create(struct drm_device *dev, u64 size, const char *name, bool stolen, u32 align);
-struct gtt_range *psb_gtt_alloc_range(struct drm_device *dev, int len, const char *name, - int backed, u32 align); -void psb_gtt_free_range(struct drm_device *dev, struct gtt_range *gt); int psb_gtt_pin(struct gtt_range *gt); void psb_gtt_unpin(struct gtt_range *gt);
diff --git a/drivers/gpu/drm/gma500/gma_display.c b/drivers/gpu/drm/gma500/gma_display.c index 8285358fac01..8c95b50034a5 100644 --- a/drivers/gpu/drm/gma500/gma_display.c +++ b/drivers/gpu/drm/gma500/gma_display.c @@ -498,6 +498,9 @@ void gma_crtc_destroy(struct drm_crtc *crtc) { struct gma_crtc *gma_crtc = to_gma_crtc(crtc);
+ if (gma_crtc->cursor_gt) + drm_gem_object_put(&gma_crtc->cursor_gt->gem); + kfree(gma_crtc->crtc_state); drm_crtc_cleanup(crtc); kfree(gma_crtc); diff --git a/drivers/gpu/drm/gma500/psb_intel_display.c b/drivers/gpu/drm/gma500/psb_intel_display.c index 18d5f7e5889e..b5e9118c01a4 100644 --- a/drivers/gpu/drm/gma500/psb_intel_display.c +++ b/drivers/gpu/drm/gma500/psb_intel_display.c @@ -461,9 +461,8 @@ static void psb_intel_cursor_init(struct drm_device *dev, /* Allocate 4 pages of stolen mem for a hardware cursor. That * is enough for the 64 x 64 ARGB cursors we support. */ - cursor_gt = psb_gtt_alloc_range(dev, 4 * PAGE_SIZE, "cursor", 1, - PAGE_SIZE); - if (!cursor_gt) { + cursor_gt = psb_gem_create(dev, 4 * PAGE_SIZE, "cursor", true, PAGE_SIZE); + if (IS_ERR(cursor_gt)) { gma_crtc->cursor_gt = NULL; goto out; }