[Intel-gfx] [PATCH 1/3] drm/i915: Introduce i9xx_set_pipeconf()
Jani Nikula
jani.nikula at linux.intel.com
Wed Apr 3 12:08:16 CEST 2013
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>
> 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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