On Fri, Aug 08, 2014 at 09:51:10PM +0300, ville.syrj...@linux.intel.com wrote:
> From: Ville Syrjälä <ville.syrj...@linux.intel.com>
>
> Move the entire DSPCNTR register setup into the .update_primary_plane()
> functions. That's where it belongs anyway and it'll also help 830M which
> has the extra problem that plane registers reads will return the value
> latched at the last vblank, not the value that was last written.
>
> Also move DSPPOS and DSPSIZE setup there.
>
> v2: Don't move variable initialization to avoid churn later
>
> Reviewed-by: Matt Roper <matthew.d.ro...@intel.com>
> Signed-off-by: Ville Syrjälä <ville.syrj...@linux.intel.com>
Queued for -next, thanks for the patch.
-Daniel
> ---
> drivers/gpu/drm/i915/intel_display.c | 100
> +++++++++++------------------------
> 1 file changed, 32 insertions(+), 68 deletions(-)
>
> diff --git a/drivers/gpu/drm/i915/intel_display.c
> b/drivers/gpu/drm/i915/intel_display.c
> index 89e0ac5..4158257 100644
> --- a/drivers/gpu/drm/i915/intel_display.c
> +++ b/drivers/gpu/drm/i915/intel_display.c
> @@ -2394,12 +2394,26 @@ static void i9xx_update_primary_plane(struct drm_crtc
> *crtc,
> int plane = intel_crtc->plane;
> unsigned long linear_offset;
> u32 dspcntr;
> - u32 reg;
> + u32 reg = DSPCNTR(plane);
> +
> + dspcntr = DISPPLANE_GAMMA_ENABLE;
> +
> + if (intel_crtc->primary_enabled)
> + dspcntr |= DISPLAY_PLANE_ENABLE;
> +
> + 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(DSPPOS(plane), 0);
> + }
>
> - reg = DSPCNTR(plane);
> - dspcntr = I915_READ(reg);
> - /* Mask out pixel format bits in case we change it */
> - dspcntr &= ~DISPPLANE_PIXFORMAT_MASK;
> switch (fb->pixel_format) {
> case DRM_FORMAT_C8:
> dspcntr |= DISPPLANE_8BPP;
> @@ -2431,12 +2445,9 @@ static void i9xx_update_primary_plane(struct drm_crtc
> *crtc,
> BUG();
> }
>
> - if (INTEL_INFO(dev)->gen >= 4) {
> - if (obj->tiling_mode != I915_TILING_NONE)
> - dspcntr |= DISPPLANE_TILED;
> - else
> - dspcntr &= ~DISPPLANE_TILED;
> - }
> + if (INTEL_INFO(dev)->gen >= 4 &&
> + obj->tiling_mode != I915_TILING_NONE)
> + dspcntr |= DISPPLANE_TILED;
>
> if (IS_G4X(dev))
> dspcntr |= DISPPLANE_TRICKLE_FEED_DISABLE;
> @@ -2480,12 +2491,16 @@ static void ironlake_update_primary_plane(struct
> drm_crtc *crtc,
> int plane = intel_crtc->plane;
> unsigned long linear_offset;
> u32 dspcntr;
> - u32 reg;
> + u32 reg = DSPCNTR(plane);
> +
> + dspcntr = DISPPLANE_GAMMA_ENABLE;
> +
> + if (intel_crtc->primary_enabled)
> + dspcntr |= DISPLAY_PLANE_ENABLE;
> +
> + if (IS_HASWELL(dev) || IS_BROADWELL(dev))
> + dspcntr |= DISPPLANE_PIPE_CSC_ENABLE;
>
> - reg = DSPCNTR(plane);
> - dspcntr = I915_READ(reg);
> - /* Mask out pixel format bits in case we change it */
> - dspcntr &= ~DISPPLANE_PIXFORMAT_MASK;
> switch (fb->pixel_format) {
> case DRM_FORMAT_C8:
> dspcntr |= DISPPLANE_8BPP;
> @@ -2515,12 +2530,8 @@ static void ironlake_update_primary_plane(struct
> drm_crtc *crtc,
>
> if (obj->tiling_mode != I915_TILING_NONE)
> dspcntr |= DISPPLANE_TILED;
> - else
> - dspcntr &= ~DISPPLANE_TILED;
>
> - if (IS_HASWELL(dev) || IS_BROADWELL(dev))
> - dspcntr &= ~DISPPLANE_TRICKLE_FEED_DISABLE;
> - else
> + if (!IS_HASWELL(dev) && !IS_BROADWELL(dev))
> dspcntr |= DISPPLANE_TRICKLE_FEED_DISABLE;
>
> I915_WRITE(reg, dspcntr);
> @@ -3946,7 +3957,6 @@ static void ironlake_crtc_enable(struct drm_crtc *crtc)
> struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
> struct intel_encoder *encoder;
> int pipe = intel_crtc->pipe;
> - enum plane plane = intel_crtc->plane;
>
> WARN_ON(!crtc->enabled);
>
> @@ -3968,10 +3978,6 @@ static void ironlake_crtc_enable(struct drm_crtc *crtc)
>
> ironlake_set_pipeconf(crtc);
>
> - /* Set up the display plane register */
> - I915_WRITE(DSPCNTR(plane), DISPPLANE_GAMMA_ENABLE);
> - POSTING_READ(DSPCNTR(plane));
> -
> dev_priv->display.update_primary_plane(crtc, crtc->primary->fb,
> crtc->x, crtc->y);
>
> @@ -4059,7 +4065,6 @@ static void haswell_crtc_enable(struct drm_crtc *crtc)
> struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
> struct intel_encoder *encoder;
> int pipe = intel_crtc->pipe;
> - enum plane plane = intel_crtc->plane;
>
> WARN_ON(!crtc->enabled);
>
> @@ -4083,10 +4088,6 @@ static void haswell_crtc_enable(struct drm_crtc *crtc)
>
> intel_set_pipe_csc(crtc);
>
> - /* Set up the display plane register */
> - I915_WRITE(DSPCNTR(plane), DISPPLANE_GAMMA_ENABLE |
> DISPPLANE_PIPE_CSC_ENABLE);
> - POSTING_READ(DSPCNTR(plane));
> -
> dev_priv->display.update_primary_plane(crtc, crtc->primary->fb,
> crtc->x, crtc->y);
>
> @@ -4642,9 +4643,7 @@ static void valleyview_crtc_enable(struct drm_crtc
> *crtc)
> struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
> struct intel_encoder *encoder;
> int pipe = intel_crtc->pipe;
> - int plane = intel_crtc->plane;
> bool is_dsi;
> - u32 dspcntr;
>
> WARN_ON(!crtc->enabled);
>
> @@ -4660,27 +4659,13 @@ static void valleyview_crtc_enable(struct drm_crtc
> *crtc)
> vlv_prepare_pll(intel_crtc);
> }
>
> - /* Set up the display plane register */
> - dspcntr = DISPPLANE_GAMMA_ENABLE;
> -
> if (intel_crtc->config.has_dp_encoder)
> intel_dp_set_m_n(intel_crtc);
>
> intel_set_pipe_timings(intel_crtc);
>
> - /* 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(DSPPOS(plane), 0);
> -
> i9xx_set_pipeconf(intel_crtc);
>
> - I915_WRITE(DSPCNTR(plane), dspcntr);
> - POSTING_READ(DSPCNTR(plane));
> -
> dev_priv->display.update_primary_plane(crtc, crtc->primary->fb,
> crtc->x, crtc->y);
>
> @@ -4735,8 +4720,6 @@ static void i9xx_crtc_enable(struct drm_crtc *crtc)
> struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
> struct intel_encoder *encoder;
> int pipe = intel_crtc->pipe;
> - int plane = intel_crtc->plane;
> - u32 dspcntr;
>
> WARN_ON(!crtc->enabled);
>
> @@ -4745,32 +4728,13 @@ static void i9xx_crtc_enable(struct drm_crtc *crtc)
>
> i9xx_set_pll_dividers(intel_crtc);
>
> - /* Set up the display plane register */
> - dspcntr = DISPPLANE_GAMMA_ENABLE;
> -
> - if (pipe == 0)
> - dspcntr &= ~DISPPLANE_SEL_PIPE_MASK;
> - else
> - dspcntr |= DISPPLANE_SEL_PIPE_B;
> -
> if (intel_crtc->config.has_dp_encoder)
> intel_dp_set_m_n(intel_crtc);
>
> intel_set_pipe_timings(intel_crtc);
>
> - /* 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(DSPPOS(plane), 0);
> -
> i9xx_set_pipeconf(intel_crtc);
>
> - I915_WRITE(DSPCNTR(plane), dspcntr);
> - POSTING_READ(DSPCNTR(plane));
> -
> dev_priv->display.update_primary_plane(crtc, crtc->primary->fb,
> crtc->x, crtc->y);
>
> --
> 1.8.5.5
>
> _______________________________________________
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> Intel-gfx@lists.freedesktop.org
> http://lists.freedesktop.org/mailman/listinfo/intel-gfx
--
Daniel Vetter
Software Engineer, Intel Corporation
+41 (0) 79 365 57 48 - http://blog.ffwll.ch
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