From b0e77b9c6b2fc21ec2e3d8b54edf8757a7c6a8dd Mon Sep 17 00:00:00 2001 From: Paulo Zanoni Date: Mon, 1 Oct 2012 18:10:53 -0300 Subject: [PATCH] drm/i915: extract intel_set_pipe_timings from crtc_mode_set Version 2: call intel_set_pipe_timings from both i9xx_crtc_mode_set and ironlake_crtc_mode_set, instead of just ironlake, as requested by Daniel Vetter. The problem caused by calling this function from i9xx_crtc_mode_set too is that now on i9xx we write to PIPESRC before writing to DSPSIZE and DSPPOS. I could not find any evidence in our documentation that this won't work, and the docs actually say the pipe registers should be set before the plane registers. Version 3: don't remove pipeconf bits on i9xx_crtc_mode_set. Signed-off-by: Paulo Zanoni Signed-off-by: Daniel Vetter --- drivers/gpu/drm/i915/intel_display.c | 124 ++++++++++++--------------- 1 file changed, 54 insertions(+), 70 deletions(-) diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c index ed0dcea4a727..6cf0d003d715 100644 --- a/drivers/gpu/drm/i915/intel_display.c +++ b/drivers/gpu/drm/i915/intel_display.c @@ -4290,6 +4290,55 @@ static void i8xx_update_pll(struct drm_crtc *crtc, I915_WRITE(DPLL(pipe), dpll); } +static void intel_set_pipe_timings(struct intel_crtc *intel_crtc, + struct drm_display_mode *mode, + struct drm_display_mode *adjusted_mode) +{ + struct drm_device *dev = intel_crtc->base.dev; + struct drm_i915_private *dev_priv = dev->dev_private; + enum pipe pipe = intel_crtc->pipe; + uint32_t vsyncshift; + + if (!IS_GEN2(dev) && adjusted_mode->flags & DRM_MODE_FLAG_INTERLACE) { + /* the chip adds 2 halflines automatically */ + adjusted_mode->crtc_vtotal -= 1; + adjusted_mode->crtc_vblank_end -= 1; + vsyncshift = adjusted_mode->crtc_hsync_start + - adjusted_mode->crtc_htotal / 2; + } else { + vsyncshift = 0; + } + + if (INTEL_INFO(dev)->gen > 3) + I915_WRITE(VSYNCSHIFT(pipe), vsyncshift); + + I915_WRITE(HTOTAL(pipe), + (adjusted_mode->crtc_hdisplay - 1) | + ((adjusted_mode->crtc_htotal - 1) << 16)); + I915_WRITE(HBLANK(pipe), + (adjusted_mode->crtc_hblank_start - 1) | + ((adjusted_mode->crtc_hblank_end - 1) << 16)); + I915_WRITE(HSYNC(pipe), + (adjusted_mode->crtc_hsync_start - 1) | + ((adjusted_mode->crtc_hsync_end - 1) << 16)); + + I915_WRITE(VTOTAL(pipe), + (adjusted_mode->crtc_vdisplay - 1) | + ((adjusted_mode->crtc_vtotal - 1) << 16)); + I915_WRITE(VBLANK(pipe), + (adjusted_mode->crtc_vblank_start - 1) | + ((adjusted_mode->crtc_vblank_end - 1) << 16)); + I915_WRITE(VSYNC(pipe), + (adjusted_mode->crtc_vsync_start - 1) | + ((adjusted_mode->crtc_vsync_end - 1) << 16)); + + /* pipesrc controls the size that is scaled from, which should + * always be the user's requested size. + */ + I915_WRITE(PIPESRC(pipe), + ((mode->hdisplay - 1) << 16) | (mode->vdisplay - 1)); +} + static int i9xx_crtc_mode_set(struct drm_crtc *crtc, struct drm_display_mode *mode, struct drm_display_mode *adjusted_mode, @@ -4303,7 +4352,7 @@ 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, vsyncshift; + u32 dspcntr, pipeconf; bool ok, has_reduced_clock = false, is_sdvo = false; bool is_lvds = false, is_tv = false, is_dp = false; struct intel_encoder *encoder; @@ -4438,40 +4487,12 @@ static int i9xx_crtc_mode_set(struct drm_crtc *crtc, pipeconf &= ~PIPECONF_INTERLACE_MASK; if (!IS_GEN2(dev) && - adjusted_mode->flags & DRM_MODE_FLAG_INTERLACE) { + adjusted_mode->flags & DRM_MODE_FLAG_INTERLACE) pipeconf |= PIPECONF_INTERLACE_W_FIELD_INDICATION; - /* the chip adds 2 halflines automatically */ - adjusted_mode->crtc_vtotal -= 1; - adjusted_mode->crtc_vblank_end -= 1; - vsyncshift = adjusted_mode->crtc_hsync_start - - adjusted_mode->crtc_htotal/2; - } else { + else pipeconf |= PIPECONF_PROGRESSIVE; - vsyncshift = 0; - } - - if (!IS_GEN3(dev)) - I915_WRITE(VSYNCSHIFT(pipe), vsyncshift); - I915_WRITE(HTOTAL(pipe), - (adjusted_mode->crtc_hdisplay - 1) | - ((adjusted_mode->crtc_htotal - 1) << 16)); - I915_WRITE(HBLANK(pipe), - (adjusted_mode->crtc_hblank_start - 1) | - ((adjusted_mode->crtc_hblank_end - 1) << 16)); - I915_WRITE(HSYNC(pipe), - (adjusted_mode->crtc_hsync_start - 1) | - ((adjusted_mode->crtc_hsync_end - 1) << 16)); - - I915_WRITE(VTOTAL(pipe), - (adjusted_mode->crtc_vdisplay - 1) | - ((adjusted_mode->crtc_vtotal - 1) << 16)); - I915_WRITE(VBLANK(pipe), - (adjusted_mode->crtc_vblank_start - 1) | - ((adjusted_mode->crtc_vblank_end - 1) << 16)); - I915_WRITE(VSYNC(pipe), - (adjusted_mode->crtc_vsync_start - 1) | - ((adjusted_mode->crtc_vsync_end - 1) << 16)); + intel_set_pipe_timings(intel_crtc, mode, adjusted_mode); /* pipesrc and dspsize control the size that is scaled from, * which should always be the user's requested size. @@ -4480,8 +4501,6 @@ static int i9xx_crtc_mode_set(struct drm_crtc *crtc, ((mode->vdisplay - 1) << 16) | (mode->hdisplay - 1)); I915_WRITE(DSPPOS(plane), 0); - I915_WRITE(PIPESRC(pipe), - ((mode->hdisplay - 1) << 16) | (mode->vdisplay - 1)); I915_WRITE(PIPECONF(pipe), pipeconf); POSTING_READ(PIPECONF(pipe)); @@ -5087,42 +5106,7 @@ static int ironlake_crtc_mode_set(struct drm_crtc *crtc, } } - if (adjusted_mode->flags & DRM_MODE_FLAG_INTERLACE) { - /* the chip adds 2 halflines automatically */ - adjusted_mode->crtc_vtotal -= 1; - adjusted_mode->crtc_vblank_end -= 1; - I915_WRITE(VSYNCSHIFT(pipe), - adjusted_mode->crtc_hsync_start - - adjusted_mode->crtc_htotal/2); - } else { - I915_WRITE(VSYNCSHIFT(pipe), 0); - } - - I915_WRITE(HTOTAL(pipe), - (adjusted_mode->crtc_hdisplay - 1) | - ((adjusted_mode->crtc_htotal - 1) << 16)); - I915_WRITE(HBLANK(pipe), - (adjusted_mode->crtc_hblank_start - 1) | - ((adjusted_mode->crtc_hblank_end - 1) << 16)); - I915_WRITE(HSYNC(pipe), - (adjusted_mode->crtc_hsync_start - 1) | - ((adjusted_mode->crtc_hsync_end - 1) << 16)); - - I915_WRITE(VTOTAL(pipe), - (adjusted_mode->crtc_vdisplay - 1) | - ((adjusted_mode->crtc_vtotal - 1) << 16)); - I915_WRITE(VBLANK(pipe), - (adjusted_mode->crtc_vblank_start - 1) | - ((adjusted_mode->crtc_vblank_end - 1) << 16)); - I915_WRITE(VSYNC(pipe), - (adjusted_mode->crtc_vsync_start - 1) | - ((adjusted_mode->crtc_vsync_end - 1) << 16)); - - /* pipesrc controls the size that is scaled from, which should - * always be the user's requested size. - */ - I915_WRITE(PIPESRC(pipe), - ((mode->hdisplay - 1) << 16) | (mode->vdisplay - 1)); + intel_set_pipe_timings(intel_crtc, mode, adjusted_mode); ironlake_set_m_n(crtc, mode, adjusted_mode); -- 2.30.2