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drm/i915: Introduce i9xx_check_plane_surface()

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Extract the primary plane surfae offset/x/y calculations for
pre-SKL platforms into a common function, and call it during the
atomic check phase to reduce the amount of stuff we have to do
during the commit phase. SKL is already doing this.

v2: Update the comment about the rotation adjustments to
    match the code better (Chris)

Cc: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Link: http://patchwork.freedesktop.org/patch/msgid/20170323192712.30682-5-ville.syrjala@linux.intel.com
This commit is contained in:
Ville Syrjälä 2017-03-23 21:27:10 +02:00
parent a0864d5905
commit 5b7fcc44aa
1 changed files with 50 additions and 32 deletions
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82
drivers/gpu/drm/i915/intel_display.c
View file

@ -3026,6 +3026,43 @@ static u32 i9xx_plane_ctl(const struct intel_crtc_state *crtc_state,
return dspcntr;
}
static int i9xx_check_plane_surface(struct intel_plane_state *plane_state)
{
struct drm_i915_private *dev_priv =
to_i915(plane_state->base.plane->dev);
int src_x = plane_state->base.src.x1 >> 16;
int src_y = plane_state->base.src.y1 >> 16;
u32 offset;
intel_add_fb_offsets(&src_x, &src_y, plane_state, 0);
if (INTEL_GEN(dev_priv) >= 4)
offset = intel_compute_tile_offset(&src_x, &src_y,
plane_state, 0);
else
offset = 0;
/* HSW/BDW do this automagically in hardware */
if (!IS_HASWELL(dev_priv) && !IS_BROADWELL(dev_priv)) {
unsigned int rotation = plane_state->base.rotation;
int src_w = drm_rect_width(&plane_state->base.src) >> 16;
int src_h = drm_rect_height(&plane_state->base.src) >> 16;
if (rotation & DRM_ROTATE_180) {
src_x += src_w - 1;
src_y += src_h - 1;
} else if (rotation & DRM_REFLECT_X) {
src_x += src_w - 1;
}
}
plane_state->main.offset = offset;
plane_state->main.x = src_x;
plane_state->main.y = src_y;
return 0;
}
static void i9xx_update_primary_plane(struct drm_plane *primary,
const struct intel_crtc_state *crtc_state,
const struct intel_plane_state *plane_state)
@ -3037,27 +3074,15 @@ static void i9xx_update_primary_plane(struct drm_plane *primary,
u32 linear_offset;
u32 dspcntr = plane_state->ctl;
i915_reg_t reg = DSPCNTR(plane);
unsigned int rotation = plane_state->base.rotation;
int x = plane_state->base.src.x1 >> 16;
int y = plane_state->base.src.y1 >> 16;
int x = plane_state->main.x;
int y = plane_state->main.y;
unsigned long irqflags;
intel_add_fb_offsets(&x, &y, plane_state, 0);
if (INTEL_GEN(dev_priv) >= 4)
intel_crtc->dspaddr_offset =
intel_compute_tile_offset(&x, &y, plane_state, 0);
if (rotation & DRM_ROTATE_180) {
x += crtc_state->pipe_src_w - 1;
y += crtc_state->pipe_src_h - 1;
} else if (rotation & DRM_REFLECT_X) {
x += crtc_state->pipe_src_w - 1;
}
linear_offset = intel_fb_xy_to_linear(x, y, plane_state, 0);
if (INTEL_GEN(dev_priv) < 4)
if (INTEL_GEN(dev_priv) >= 4)
intel_crtc->dspaddr_offset = plane_state->main.offset;
else
intel_crtc->dspaddr_offset = linear_offset;
intel_crtc->adjusted_x = x;
@ -3133,25 +3158,14 @@ static void ironlake_update_primary_plane(struct drm_plane *primary,
u32 linear_offset;
u32 dspcntr = plane_state->ctl;
i915_reg_t reg = DSPCNTR(plane);
unsigned int rotation = plane_state->base.rotation;
int x = plane_state->base.src.x1 >> 16;
int y = plane_state->base.src.y1 >> 16;
int x = plane_state->main.x;
int y = plane_state->main.y;
unsigned long irqflags;
intel_add_fb_offsets(&x, &y, plane_state, 0);
intel_crtc->dspaddr_offset =
intel_compute_tile_offset(&x, &y, plane_state, 0);
/* HSW+ does this automagically in hardware */
if (!IS_HASWELL(dev_priv) && !IS_BROADWELL(dev_priv) &&
rotation & DRM_ROTATE_180) {
x += crtc_state->pipe_src_w - 1;
y += crtc_state->pipe_src_h - 1;
}
linear_offset = intel_fb_xy_to_linear(x, y, plane_state, 0);
intel_crtc->dspaddr_offset = plane_state->main.offset;
intel_crtc->adjusted_x = x;
intel_crtc->adjusted_y = y;
@ -13365,6 +13379,10 @@ intel_check_primary_plane(struct drm_plane *plane,
state->ctl = skl_plane_ctl(crtc_state, state);
} else {
ret = i9xx_check_plane_surface(state);
if (ret)
return ret;
state->ctl = i9xx_plane_ctl(crtc_state, state);
}