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drm/i915: Pass 90/270 vs. 0/180 rotation info for intel_gen4_compute_page_offset()

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The page aligned surface address calculation needs to know which way
things are rotated. The contract now says that the caller must pass the
rotate x/y coordinates, as well as the tile_height aligned stride in
the tile_height direction. This will make it fairly simple to deal with
90/270 degree rotation on SKL+ where we have to deal with the rotated
view into the GTT.

v2: Pass rotation instead of bool even thoughwe only care about 0/180 vs. 90/270
v3: Introduce intel_tile_dims(), and don't mix up different units so much
v4: Unconfuse bytes vs. pixels even more

Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/1455569699-27905-4-git-send-email-ville.syrjala@linux.intel.com
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
This commit is contained in:
Ville Syrjälä
2016-02-15 22:54:41 +02:00
parent 27ba391014
commit 8d0deca8c6
3 changed files with 63 additions and 30 deletions
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3
drivers/gpu/drm/i915/intel_drv.h
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@@ -1199,7 +1199,8 @@ u32 intel_compute_tile_offset(struct drm_i915_private *dev_priv,
int *x, int *y,
uint64_t fb_modifier,
unsigned int cpp,
unsigned int pitch);
unsigned int pitch,
unsigned int rotation);
void intel_prepare_reset(struct drm_device *dev);
void intel_finish_reset(struct drm_device *dev);
void hsw_enable_pc8(struct drm_i915_private *dev_priv);