diff options
| author | Damien Lespiau <damien.lespiau@intel.com> | 2012-10-22 21:19:27 +0400 |
|---|---|---|
| committer | Daniel Vetter <daniel.vetter@ffwll.ch> | 2012-10-23 21:35:18 +0400 |
| commit | 2d354c347257287ec00b2e6e26a4d209e348cf7d (patch) | |
| tree | 680da1d1713941e903a8a2fcff01746989f7d3f4 /drivers/gpu/drm/i915/intel_sprite.c | |
| parent | 9324cf7fefd77883a9d8d7e0356b9dd45c13132b (diff) | |
| download | linux-2d354c347257287ec00b2e6e26a4d209e348cf7d.tar.xz | |
drm/i915: Don't try to use SPR_SCALE when we don't have a sprite scaler
Haswell does not have a scaler in the sprite pipeline anymore, so let's
ensure:
1/ We bail out of update_plate() when someone is trying to ask to
display a scaled framebuffer,
2/ We never write to the nonexistent SPR_SCALE register
v2: Smash in the fixup from Damien in the disable_plane function.
Signed-off-by: Damien Lespiau <damien.lespiau@intel.com> (for v1)
Reviewed-by: Jesse Barnes <jbarnes@virtuousgeek.org> (for v1)
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Diffstat (limited to 'drivers/gpu/drm/i915/intel_sprite.c')
| -rw-r--r-- | drivers/gpu/drm/i915/intel_sprite.c | 17 |
1 files changed, 15 insertions, 2 deletions
diff --git a/drivers/gpu/drm/i915/intel_sprite.c b/drivers/gpu/drm/i915/intel_sprite.c index 82f5e5c7009d..56e52376797b 100644 --- a/drivers/gpu/drm/i915/intel_sprite.c +++ b/drivers/gpu/drm/i915/intel_sprite.c @@ -136,7 +136,8 @@ ivb_update_plane(struct drm_plane *plane, struct drm_framebuffer *fb, I915_WRITE(SPRLINOFF(pipe), offset); } I915_WRITE(SPRSIZE(pipe), (crtc_h << 16) | crtc_w); - I915_WRITE(SPRSCALE(pipe), sprscale); + if (intel_plane->can_scale) + I915_WRITE(SPRSCALE(pipe), sprscale); I915_WRITE(SPRCTL(pipe), sprctl); I915_MODIFY_DISPBASE(SPRSURF(pipe), obj->gtt_offset); POSTING_READ(SPRSURF(pipe)); @@ -152,7 +153,8 @@ ivb_disable_plane(struct drm_plane *plane) I915_WRITE(SPRCTL(pipe), I915_READ(SPRCTL(pipe)) & ~SPRITE_ENABLE); /* Can't leave the scaler enabled... */ - I915_WRITE(SPRSCALE(pipe), 0); + if (intel_plane->can_scale) + I915_WRITE(SPRSCALE(pipe), 0); /* Activate double buffered register update */ I915_MODIFY_DISPBASE(SPRSURF(pipe), 0); POSTING_READ(SPRSURF(pipe)); @@ -473,6 +475,12 @@ intel_update_plane(struct drm_plane *plane, struct drm_crtc *crtc, goto out; /* + * We may not have a scaler, eg. HSW does not have it any more + */ + if (!intel_plane->can_scale && (crtc_w != src_w || crtc_h != src_h)) + return -EINVAL; + + /* * We can take a larger source and scale it down, but * only so much... 16x is the max on SNB. */ @@ -665,6 +673,7 @@ intel_plane_init(struct drm_device *dev, enum pipe pipe) switch (INTEL_INFO(dev)->gen) { case 5: case 6: + intel_plane->can_scale = true; intel_plane->max_downscale = 16; intel_plane->update_plane = ilk_update_plane; intel_plane->disable_plane = ilk_disable_plane; @@ -681,6 +690,10 @@ intel_plane_init(struct drm_device *dev, enum pipe pipe) break; case 7: + if (IS_HASWELL(dev)) + intel_plane->can_scale = false; + else + intel_plane->can_scale = true; intel_plane->max_downscale = 2; intel_plane->update_plane = ivb_update_plane; intel_plane->disable_plane = ivb_disable_plane; |