[PATCH 5/9] drm/i915: Pass primary plane size to .update_primary_plane()

ville.syrjala
2015-03-10T11:15:50Z

From: Ville Syrjälä <ville.syrjala@linux.intel.com>

In preparation to movable/resizable primary planes pass the clipped
plane size to .update_primary_plane().

Cc: Sonika Jindal <sonika.jindal@intel.com>
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
---
drivers/gpu/drm/i915/i915_drv.h | 3 +-
drivers/gpu/drm/i915/intel_display.c | 63 ++++++++++++++++++++----------------
2 files changed, 38 insertions(+), 28 deletions(-)

diff --git a/drivers/gpu/drm/i915/i915_drv.h b/drivers/gpu/drm/i915/i915_drv.h
index b16c0a7..e99eef0 100644
--- a/drivers/gpu/drm/i915/i915_drv.h
+++ b/drivers/gpu/drm/i915/i915_drv.h
@@ -578,7 +578,8 @@ struct drm_i915_display_funcs {
uint32_t flags);
void (*update_primary_plane)(struct drm_crtc *crtc,
struct drm_framebuffer *fb,
- int x, int y);
+ int x, int y,
+ int crtc_w, int crtc_h);
void (*hpd_irq_setup)(struct drm_device *dev);
/* clock updates for mode set */
/* cursor updates */
diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c
index fdc83f1..1a789f0 100644
--- a/drivers/gpu/drm/i915/intel_display.c
+++ b/drivers/gpu/drm/i915/intel_display.c
@@ -2482,7 +2482,8 @@ intel_find_plane_obj(struct intel_crtc *intel_crtc,

static void i9xx_update_primary_plane(struct drm_crtc *crtc,
struct drm_framebuffer *fb,
- int x, int y)
+ int x, int y,
+ int crtc_w, int crtc_h)
{
struct drm_device *dev = crtc->dev;
struct drm_i915_private *dev_priv = dev->dev_private;
@@ -2517,20 +2518,16 @@ static void i9xx_update_primary_plane(struct drm_crtc *crtc,
if (INTEL_INFO(dev)->gen < 4) {
if (intel_crtc->pipe == PIPE_B)
dspcntr |= DISPPLANE_SEL_PIPE_B;
-
- /* pipesrc and dspsize control the size that is scaled from,
- * which should always be the user's requested size.
- */
- I915_WRITE(DSPSIZE(plane),
- ((intel_crtc->config->pipe_src_h - 1) << 16) |
- (intel_crtc->config->pipe_src_w - 1));
+ I915_WRITE(DSPSIZE(plane), ((crtc_h - 1) << 16) | (crtc_w - 1));
I915_WRITE(DSPPOS(plane), 0);
} else if (IS_CHERRYVIEW(dev) && plane == PLANE_B) {
- I915_WRITE(PRIMSIZE(plane),
- ((intel_crtc->config->pipe_src_h - 1) << 16) |
- (intel_crtc->config->pipe_src_w - 1));
+ I915_WRITE(PRIMSIZE(plane), ((crtc_h - 1) << 16) | (crtc_w - 1));
I915_WRITE(PRIMPOS(plane), 0);
I915_WRITE(PRIMCNSTALPHA(plane), 0);
+ } else {
+ WARN_ONCE(crtc_w != intel_crtc->config->pipe_src_w ||
+ crtc_h != intel_crtc->config->pipe_src_h,
+ "primary plane size doesn't match pipe size\n");
}

switch (fb->pixel_format) {
@@ -2586,14 +2583,14 @@ static void i9xx_update_primary_plane(struct drm_crtc *crtc,
if (crtc->primary->state->rotation == BIT(DRM_ROTATE_180)) {
dspcntr |= DISPPLANE_ROTATE_180;

- x += (intel_crtc->config->pipe_src_w - 1);
- y += (intel_crtc->config->pipe_src_h - 1);
+ x += (crtc_w - 1);
+ y += (crtc_h - 1);

/* Finding the last pixel of the last line of the display
data and adding to linear_offset*/
linear_offset +=
- (intel_crtc->config->pipe_src_h - 1) * fb->pitches[0] +
- (intel_crtc->config->pipe_src_w - 1) * pixel_size;
+ (crtc_h - 1) * fb->pitches[0] +
+ (crtc_w - 1) * pixel_size;
}

I915_WRITE(reg, dspcntr);
@@ -2611,7 +2608,8 @@ static void i9xx_update_primary_plane(struct drm_crtc *crtc,

static void ironlake_update_primary_plane(struct drm_crtc *crtc,
struct drm_framebuffer *fb,
- int x, int y)
+ int x, int y,
+ int crtc_w, int crtc_h)
{
struct drm_device *dev = crtc->dev;
struct drm_i915_private *dev_priv = dev->dev_private;
@@ -2643,6 +2641,10 @@ static void ironlake_update_primary_plane(struct drm_crtc *crtc,
if (IS_HASWELL(dev) || IS_BROADWELL(dev))
dspcntr |= DISPPLANE_PIPE_CSC_ENABLE;

+ WARN_ONCE(crtc_w != intel_crtc->config->pipe_src_w ||
+ crtc_h != intel_crtc->config->pipe_src_h,
+ "primary plane size doesn't match pipe size\n");
+
switch (fb->pixel_format) {
case DRM_FORMAT_C8:
dspcntr |= DISPPLANE_8BPP;
@@ -2686,14 +2688,14 @@ static void ironlake_update_primary_plane(struct drm_crtc *crtc,
dspcntr |= DISPPLANE_ROTATE_180;

if (!IS_HASWELL(dev) && !IS_BROADWELL(dev)) {
- x += (intel_crtc->config->pipe_src_w - 1);
- y += (intel_crtc->config->pipe_src_h - 1);
+ x += (crtc_w - 1);
+ y += (crtc_h - 1);

/* Finding the last pixel of the last line of the display
data and adding to linear_offset*/
linear_offset +=
- (intel_crtc->config->pipe_src_h - 1) * fb->pitches[0] +
- (intel_crtc->config->pipe_src_w - 1) * pixel_size;
+ (crtc_h - 1) * fb->pitches[0] +
+ (crtc_w - 1) * pixel_size;
}
}

@@ -2747,7 +2749,8 @@ u32 intel_fb_stride_alignment(struct drm_device *dev, uint64_t fb_modifier,

static void skylake_update_primary_plane(struct drm_crtc *crtc,
struct drm_framebuffer *fb,
- int x, int y)
+ int x, int y,
+ int crtc_w, int crtc_h)
{
struct drm_device *dev = crtc->dev;
struct drm_i915_private *dev_priv = dev->dev_private;
@@ -2826,9 +2829,7 @@ static void skylake_update_primary_plane(struct drm_crtc *crtc,

I915_WRITE(PLANE_POS(pipe, 0), 0);
I915_WRITE(PLANE_OFFSET(pipe, 0), (y << 16) | x);
- I915_WRITE(PLANE_SIZE(pipe, 0),
- (intel_crtc->config->pipe_src_h - 1) << 16 |
- (intel_crtc->config->pipe_src_w - 1));
+ I915_WRITE(PLANE_SIZE(pipe, 0), ((crtc_h - 1) << 16) | (crtc_w - 1));
I915_WRITE(PLANE_STRIDE(pipe, 0), fb->pitches[0] / stride_div);
I915_WRITE(PLANE_SURF(pipe, 0), i915_gem_obj_ggtt_offset(obj));

@@ -2845,12 +2846,16 @@ intel_pipe_set_base_atomic(struct drm_crtc *crtc, struct drm_framebuffer *fb,
{
struct drm_device *dev = crtc->dev;
struct drm_i915_private *dev_priv = dev->dev_private;
+ struct intel_crtc *intel_crtc = to_intel_crtc(crtc);

if (dev_priv->display.disable_fbc)
dev_priv->display.disable_fbc(dev);

+ /* FIXME: this will go badly if the fb isn't big enough */
to_intel_crtc(crtc)->primary_enabled = true;
- dev_priv->display.update_primary_plane(crtc, fb, x, y);
+ dev_priv->display.update_primary_plane(crtc, fb, x, y,
+ intel_crtc->config->pipe_src_w,
+ intel_crtc->config->pipe_src_h);

return 0;
}
@@ -2885,7 +2890,9 @@ static void intel_update_primary_planes(struct drm_device *dev)
dev_priv->display.update_primary_plane(crtc,
state->base.fb,
state->src.x1 >> 16,
- state->src.y1 >> 16);
+ state->src.y1 >> 16,
+ drm_rect_width(&state->dst),
+ drm_rect_height(&state->dst));
}

drm_modeset_unlock(&crtc->mutex);
@@ -12019,7 +12026,9 @@ intel_commit_primary_plane(struct drm_plane *plane,
dev_priv->display.update_primary_plane(crtc,
state->base.fb,
state->src.x1 >> 16,
- state->src.y1 >> 16);
+ state->src.y1 >> 16,
+ drm_rect_width(&state->dst),
+ drm_rect_height(&state->dst));
}
}

--
2.0.5