From: Dave Airlie <airlied@xxxxxxxxxx>
Avoids drivers knowing where the kref is stored.
Signed-off-by: Dave Airlie <airlied@xxxxxxxxxx>
---
drivers/gpu/drm/drm_crtc.c | 2 +-
drivers/gpu/drm/i915/i915_debugfs.c | 4 ++--
drivers/gpu/drm/msm/msm_fb.c | 2 +-
drivers/gpu/drm/tegra/drm.c | 2 +-
include/drm/drm_crtc.h | 5 +++++
5 files changed, 10 insertions(+), 5 deletions(-)
diff --git a/drivers/gpu/drm/drm_crtc.c b/drivers/gpu/drm/drm_crtc.c
index 0ad1a92..8616737 100644
--- a/drivers/gpu/drm/drm_crtc.c
+++ b/drivers/gpu/drm/drm_crtc.c
@@ -612,7 +612,7 @@ void drm_framebuffer_remove(struct drm_framebuffer *fb)
* in-use fb with fb-id == 0. Userspace is allowed to shoot its own foot
* in this manner.
*/
- if (atomic_read(&fb->refcount.refcount) > 1) {
+ if (drm_framebuffer_read_refcount(fb) > 1) {
drm_modeset_lock_all(dev);
/* remove from any CRTC */
drm_for_each_crtc(crtc, dev) {
diff --git a/drivers/gpu/drm/i915/i915_debugfs.c b/drivers/gpu/drm/i915/i915_debugfs.c
index a0f1bd7..20d9300 100644
--- a/drivers/gpu/drm/i915/i915_debugfs.c
+++ b/drivers/gpu/drm/i915/i915_debugfs.c
@@ -1908,7 +1908,7 @@ static int i915_gem_framebuffer_info(struct seq_file *m, void *data)
fbdev_fb->base.depth,
fbdev_fb->base.bits_per_pixel,
fbdev_fb->base.modifier[0],
- atomic_read(&fbdev_fb->base.refcount.refcount));
+ drm_framebuffer_read_refcount(&fbdev_fb->base));
describe_obj(m, fbdev_fb->obj);
seq_putc(m, '\n');
}
@@ -1926,7 +1926,7 @@ static int i915_gem_framebuffer_info(struct seq_file *m, void *data)
fb->base.depth,
fb->base.bits_per_pixel,
fb->base.modifier[0],
- atomic_read(&fb->base.refcount.refcount));
+ drm_framebuffer_read_refcount(&fb->base));
describe_obj(m, fb->obj);
seq_putc(m, '\n');
}
diff --git a/drivers/gpu/drm/msm/msm_fb.c b/drivers/gpu/drm/msm/msm_fb.c
index a474d6c..17e0c9e 100644
--- a/drivers/gpu/drm/msm/msm_fb.c
+++ b/drivers/gpu/drm/msm/msm_fb.c
@@ -77,7 +77,7 @@ void msm_framebuffer_describe(struct drm_framebuffer *fb, struct seq_file *m)
seq_printf(m, "fb: %dx%d@%4.4s (%2d, ID:%d)\n",
fb->width, fb->height, (char *)&fb->pixel_format,
- fb->refcount.refcount.counter, fb->base.id);
+ drm_framebuffer_read_refcount(fb), fb->base.id);
for (i = 0; i < n; i++) {
seq_printf(m, " %d: offset=%d pitch=%d, obj: ",
diff --git a/drivers/gpu/drm/tegra/drm.c b/drivers/gpu/drm/tegra/drm.c
index 8e6b18c..2be88eb 100644
--- a/drivers/gpu/drm/tegra/drm.c
+++ b/drivers/gpu/drm/tegra/drm.c
@@ -878,7 +878,7 @@ static int tegra_debugfs_framebuffers(struct seq_file *s, void *data)
seq_printf(s, "%3d: user size: %d x %d, depth %d, %d bpp, refcount %d\n",
fb->base.id, fb->width, fb->height, fb->depth,
fb->bits_per_pixel,
- atomic_read(&fb->refcount.refcount));
+ drm_framebuffer_read_refcount(fb));
}
mutex_unlock(&drm->mode_config.fb_lock);
diff --git a/include/drm/drm_crtc.h b/include/drm/drm_crtc.h
index e0170bf..99a12f0 100644
--- a/include/drm/drm_crtc.h
+++ b/include/drm/drm_crtc.h
@@ -2608,6 +2608,11 @@ static inline uint32_t drm_color_lut_extract(uint32_t user_input,
return clamp_val(val, 0, max);
}
+static inline uint32_t drm_framebuffer_read_refcount(struct drm_framebuffer *fb)
+{
+ return atomic_read(&fb->refcount.refcount);
+}
+
/* Plane list iterator for legacy (overlay only) planes. */
#define drm_for_each_legacy_plane(plane, dev) \
list_for_each_entry(plane, &(dev)->mode_config.plane_list, head) \
--
2.5.5
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