diff options
author | Thomas Zimmermann <tzimmermann@suse.de> | 2021-10-15 10:40:47 +0200 |
---|---|---|
committer | Thomas Zimmermann <tzimmermann@suse.de> | 2021-10-19 10:38:48 +0200 |
commit | 957a2d0e7ea38d84d4b3cf9a951bccadeb803a24 (patch) | |
tree | b6f2bd32ef6548c728653012d52a6ab1e7af74ec | |
parent | 576d4d2d90310270c1d463577f0a075e88cf6c4a (diff) | |
download | linux-957a2d0e7ea38d84d4b3cf9a951bccadeb803a24.tar.bz2 |
drm/gma500: Allocate GTT ranges in stolen memory with psb_gem_create()
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.
Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Acked-by: Patrik Jakobsson <patrik.r.jakobsson@gmail.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20211015084053.13708-5-tzimmermann@suse.de
-rw-r--r-- | drivers/gpu/drm/gma500/framebuffer.c | 44 | ||||
-rw-r--r-- | drivers/gpu/drm/gma500/gem.c | 22 | ||||
-rw-r--r-- | drivers/gpu/drm/gma500/gem.h | 5 | ||||
-rw-r--r-- | drivers/gpu/drm/gma500/gma_display.c | 3 | ||||
-rw-r--r-- | 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 @@ -225,31 +225,6 @@ static struct drm_framebuffer *psb_framebuffer_create } /** - * 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 * @sizes: specification of the layout @@ -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 0c094d4e3f1c..97b7f3bdbdc3 100644 --- a/drivers/gpu/drm/gma500/gem.c +++ b/drivers/gpu/drm/gma500/gem.c @@ -101,7 +101,7 @@ 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) { @@ -133,13 +133,13 @@ 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; @@ -193,12 +193,16 @@ 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; } |