[Intel-gfx] [PATCH 1/3] drm/i915: Introduce i9xx_set_pipeconf()
Daniel Vetter
daniel at ffwll.ch
Wed Apr 3 19:06:01 CEST 2013
On Wed, Apr 03, 2013 at 01:08:16PM +0300, Jani Nikula wrote:
> On Tue, 02 Apr 2013, ville.syrjala at linux.intel.com wrote:
> > From: Ville Syrjälä <ville.syrjala at linux.intel.com>
> >
> > Extract the PIPECONF setup into i9xx_set_pipeconf(). This makes the
> > <=Gen4/VLV code follow the same pattern as the Gen5+ codepaths.
>
> Reviewed-by: Jani Nikula <jani.nikula at intel.com>
Queued for -next with a pretty massive bikeshed (extended conflict
resolutions ftw), thanks for the patch.
-Daniel
>
> > Signed-off-by: Ville Syrjälä <ville.syrjala at linux.intel.com>
> > ---
> > drivers/gpu/drm/i915/intel_display.c | 123 +++++++++++++++++++----------------
> > 1 file changed, 68 insertions(+), 55 deletions(-)
> >
> > diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c
> > index 298bc0c..dfaea15 100644
> > --- a/drivers/gpu/drm/i915/intel_display.c
> > +++ b/drivers/gpu/drm/i915/intel_display.c
> > @@ -4514,6 +4514,71 @@ static void intel_set_pipe_timings(struct intel_crtc *intel_crtc,
> > ((mode->hdisplay - 1) << 16) | (mode->vdisplay - 1));
> > }
> >
> > +static void i9xx_set_pipeconf(struct drm_crtc *crtc,
> > + const struct drm_display_mode *mode,
> > + const struct drm_display_mode *adjusted_mode,
> > + bool is_dp)
> > +{
> > + struct drm_device *dev = crtc->dev;
> > + struct drm_i915_private *dev_priv = dev->dev_private;
> > + struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
> > + int pipe = intel_crtc->pipe;
> > + u32 pipeconf;
> > +
> > + /* setup pipeconf */
> > + pipeconf = I915_READ(PIPECONF(pipe));
> > +
> > + if (pipe == 0 && INTEL_INFO(dev)->gen < 4) {
> > + /* Enable pixel doubling when the dot clock is > 90% of the (display)
> > + * core speed.
> > + *
> > + * XXX: No double-wide on 915GM pipe B. Is that the only reason for the
> > + * pipe == 0 check?
> > + */
> > + if (mode->clock >
> > + dev_priv->display.get_display_clock_speed(dev) * 9 / 10)
> > + pipeconf |= PIPECONF_DOUBLE_WIDE;
> > + else
> > + pipeconf &= ~PIPECONF_DOUBLE_WIDE;
> > + }
> > +
> > + /* default to 8bpc */
> > + pipeconf &= ~(PIPECONF_BPC_MASK | PIPECONF_DITHER_EN);
> > + if (is_dp && intel_crtc->config.dither) {
> > + pipeconf |= PIPECONF_6BPC |
> > + PIPECONF_DITHER_EN |
> > + PIPECONF_DITHER_TYPE_SP;
> > + }
> > +
> > + if (IS_VALLEYVIEW(dev) &&
> > + intel_pipe_has_type(crtc, INTEL_OUTPUT_EDP) &&
> > + intel_crtc->config.dither) {
> > + pipeconf |= PIPECONF_6BPC |
> > + PIPECONF_ENABLE |
> > + I965_PIPECONF_ACTIVE;
> > + }
> > +
> > + if (HAS_PIPE_CXSR(dev)) {
> > + if (intel_crtc->lowfreq_avail) {
> > + DRM_DEBUG_KMS("enabling CxSR downclocking\n");
> > + pipeconf |= PIPECONF_CXSR_DOWNCLOCK;
> > + } else {
> > + DRM_DEBUG_KMS("disabling CxSR downclocking\n");
> > + pipeconf &= ~PIPECONF_CXSR_DOWNCLOCK;
> > + }
> > + }
> > +
> > + pipeconf &= ~PIPECONF_INTERLACE_MASK;
> > + if (!IS_GEN2(dev) &&
> > + adjusted_mode->flags & DRM_MODE_FLAG_INTERLACE)
> > + pipeconf |= PIPECONF_INTERLACE_W_FIELD_INDICATION;
> > + else
> > + pipeconf |= PIPECONF_PROGRESSIVE;
> > +
> > + I915_WRITE(PIPECONF(pipe), pipeconf);
> > + POSTING_READ(PIPECONF(pipe));
> > +}
> > +
> > static int i9xx_crtc_mode_set(struct drm_crtc *crtc,
> > int x, int y,
> > struct drm_framebuffer *fb)
> > @@ -4528,7 +4593,7 @@ static int i9xx_crtc_mode_set(struct drm_crtc *crtc,
> > int plane = intel_crtc->plane;
> > int refclk, num_connectors = 0;
> > intel_clock_t clock, reduced_clock;
> > - u32 dspcntr, pipeconf;
> > + u32 dspcntr;
> > bool ok, has_reduced_clock = false, is_sdvo = false;
> > bool is_lvds = false, is_tv = false, is_dp = false;
> > struct intel_encoder *encoder;
> > @@ -4605,9 +4670,6 @@ static int i9xx_crtc_mode_set(struct drm_crtc *crtc,
> > has_reduced_clock ? &reduced_clock : NULL,
> > num_connectors);
> >
> > - /* setup pipeconf */
> > - pipeconf = I915_READ(PIPECONF(pipe));
> > -
> > /* Set up the display plane register */
> > dspcntr = DISPPLANE_GAMMA_ENABLE;
> >
> > @@ -4618,58 +4680,9 @@ static int i9xx_crtc_mode_set(struct drm_crtc *crtc,
> > dspcntr |= DISPPLANE_SEL_PIPE_B;
> > }
> >
> > - if (pipe == 0 && INTEL_INFO(dev)->gen < 4) {
> > - /* Enable pixel doubling when the dot clock is > 90% of the (display)
> > - * core speed.
> > - *
> > - * XXX: No double-wide on 915GM pipe B. Is that the only reason for the
> > - * pipe == 0 check?
> > - */
> > - if (mode->clock >
> > - dev_priv->display.get_display_clock_speed(dev) * 9 / 10)
> > - pipeconf |= PIPECONF_DOUBLE_WIDE;
> > - else
> > - pipeconf &= ~PIPECONF_DOUBLE_WIDE;
> > - }
> > -
> > - /* default to 8bpc */
> > - pipeconf &= ~(PIPECONF_BPC_MASK | PIPECONF_DITHER_EN);
> > - if (is_dp) {
> > - if (intel_crtc->config.dither) {
> > - pipeconf |= PIPECONF_6BPC |
> > - PIPECONF_DITHER_EN |
> > - PIPECONF_DITHER_TYPE_SP;
> > - }
> > - }
> > -
> > - if (IS_VALLEYVIEW(dev) && intel_pipe_has_type(crtc, INTEL_OUTPUT_EDP)) {
> > - if (intel_crtc->config.dither) {
> > - pipeconf |= PIPECONF_6BPC |
> > - PIPECONF_ENABLE |
> > - I965_PIPECONF_ACTIVE;
> > - }
> > - }
> > -
> > DRM_DEBUG_KMS("Mode for pipe %c:\n", pipe == 0 ? 'A' : 'B');
> > drm_mode_debug_printmodeline(mode);
> >
> > - if (HAS_PIPE_CXSR(dev)) {
> > - if (intel_crtc->lowfreq_avail) {
> > - DRM_DEBUG_KMS("enabling CxSR downclocking\n");
> > - pipeconf |= PIPECONF_CXSR_DOWNCLOCK;
> > - } else {
> > - DRM_DEBUG_KMS("disabling CxSR downclocking\n");
> > - pipeconf &= ~PIPECONF_CXSR_DOWNCLOCK;
> > - }
> > - }
> > -
> > - pipeconf &= ~PIPECONF_INTERLACE_MASK;
> > - if (!IS_GEN2(dev) &&
> > - adjusted_mode->flags & DRM_MODE_FLAG_INTERLACE)
> > - pipeconf |= PIPECONF_INTERLACE_W_FIELD_INDICATION;
> > - else
> > - pipeconf |= PIPECONF_PROGRESSIVE;
> > -
> > intel_set_pipe_timings(intel_crtc, mode, adjusted_mode);
> >
> > /* pipesrc and dspsize control the size that is scaled from,
> > @@ -4680,8 +4693,8 @@ static int i9xx_crtc_mode_set(struct drm_crtc *crtc,
> > (mode->hdisplay - 1));
> > I915_WRITE(DSPPOS(plane), 0);
> >
> > - I915_WRITE(PIPECONF(pipe), pipeconf);
> > - POSTING_READ(PIPECONF(pipe));
> > + i9xx_set_pipeconf(crtc, mode, adjusted_mode, is_dp);
> > +
> > intel_enable_pipe(dev_priv, pipe, false);
> >
> > intel_wait_for_vblank(dev, pipe);
> > --
> > 1.8.1.5
> >
> > _______________________________________________
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> > Intel-gfx at lists.freedesktop.org
> > http://lists.freedesktop.org/mailman/listinfo/intel-gfx
> _______________________________________________
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--
Daniel Vetter
Software Engineer, Intel Corporation
+41 (0) 79 365 57 48 - http://blog.ffwll.ch
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