From c0b0341121f2e2b329e60986aee766e4d1d80fde Mon Sep 17 00:00:00 2001 From: Daniel Vetter Date: Tue, 28 May 2013 12:05:54 +0200 Subject: [PATCH] drm/i915: add basic pipe config dump support All this pipe config abstraction adds another layer of complexity, so it's good to have better visibility into what's going on exactly. Doesn't dump out everything yet, and some bits are a bit duplicated but this should be a good start. Note that at boot-up a lot of the fields are 0 even for enabled pipes, this is simply because our hw state readout code doesn't support everything. v2: Remove a few more now redudant debug output lines. v3: Review from Paulo - use transcoder_name - fix up format specifiers - add missing ':' in debug output Cc: Paulo Zanoni Reviewed-by: Paulo Zanoni Signed-off-by: Daniel Vetter --- drivers/gpu/drm/i915/intel_display.c | 74 +++++++++++++++++----------- 1 file changed, 44 insertions(+), 30 deletions(-) diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c index cb2437d1e0ea..21cbb3d0e1d8 100644 --- a/drivers/gpu/drm/i915/intel_display.c +++ b/drivers/gpu/drm/i915/intel_display.c @@ -3523,18 +3523,12 @@ static void i9xx_pfit_enable(struct intel_crtc *crtc) if (!crtc->config.gmch_pfit.control) return; - WARN_ON(I915_READ(PFIT_CONTROL) & PFIT_ENABLE); - assert_pipe_disabled(dev_priv, crtc->pipe); - /* - * Enable automatic panel scaling so that non-native modes - * fill the screen. The panel fitter should only be - * adjusted whilst the pipe is disabled, according to - * register description and PRM. + * The panel fitter should only be adjusted whilst the pipe is disabled, + * according to register description and PRM. */ - DRM_DEBUG_KMS("applying panel-fitter: %x, %x\n", - pipe_config->gmch_pfit.control, - pipe_config->gmch_pfit.pgm_ratios); + WARN_ON(I915_READ(PFIT_CONTROL) & PFIT_ENABLE); + assert_pipe_disabled(dev_priv, crtc->pipe); I915_WRITE(PFIT_PGM_RATIOS, pipe_config->gmch_pfit.pgm_ratios); I915_WRITE(PFIT_CONTROL, pipe_config->gmch_pfit.control); @@ -4857,9 +4851,6 @@ static int i9xx_crtc_mode_set(struct drm_crtc *crtc, dspcntr |= DISPPLANE_SEL_PIPE_B; } - DRM_DEBUG_KMS("Mode for pipe %c:\n", pipe_name(pipe)); - drm_mode_debug_printmodeline(mode); - intel_set_pipe_timings(intel_crtc, mode, adjusted_mode); /* pipesrc and dspsize control the size that is scaled from, @@ -5661,9 +5652,6 @@ static int ironlake_crtc_mode_set(struct drm_crtc *crtc, /* Ensure that the cursor is valid for the new mode before changing... */ intel_crtc_update_cursor(crtc, true); - DRM_DEBUG_KMS("Mode for pipe %c:\n", pipe_name(pipe)); - drm_mode_debug_printmodeline(mode); - /* CPU eDP is the only output that doesn't need a PCH PLL of its own. */ if (intel_crtc->config.has_pch_encoder) { struct intel_pch_pll *pll; @@ -5874,9 +5862,6 @@ static int haswell_crtc_mode_set(struct drm_crtc *crtc, /* Ensure that the cursor is valid for the new mode before changing... */ intel_crtc_update_cursor(crtc, true); - DRM_DEBUG_KMS("Mode for pipe %c:\n", pipe_name(pipe)); - drm_mode_debug_printmodeline(mode); - if (intel_crtc->config.has_dp_encoder) intel_dp_set_m_n(intel_crtc); @@ -7685,6 +7670,35 @@ pipe_config_set_bpp(struct drm_crtc *crtc, return bpp; } +static void intel_dump_pipe_config(struct intel_crtc *crtc, + struct intel_crtc_config *pipe_config, + const char *context) +{ + DRM_DEBUG_KMS("[CRTC:%d]%s config for pipe %c\n", crtc->base.base.id, + context, pipe_name(crtc->pipe)); + + DRM_DEBUG_KMS("cpu_transcoder: %c\n", transcoder_name(pipe_config->cpu_transcoder)); + DRM_DEBUG_KMS("pipe bpp: %i, dithering: %i\n", + pipe_config->pipe_bpp, pipe_config->dither); + DRM_DEBUG_KMS("fdi/pch: %i, lanes: %i, gmch_m: %u, gmch_n: %u, link_m: %u, link_n: %u, tu: %u\n", + pipe_config->has_pch_encoder, + pipe_config->fdi_lanes, + pipe_config->fdi_m_n.gmch_m, pipe_config->fdi_m_n.gmch_n, + pipe_config->fdi_m_n.link_m, pipe_config->fdi_m_n.link_n, + pipe_config->fdi_m_n.tu); + DRM_DEBUG_KMS("requested mode:\n"); + drm_mode_debug_printmodeline(&pipe_config->requested_mode); + DRM_DEBUG_KMS("adjusted mode:\n"); + drm_mode_debug_printmodeline(&pipe_config->adjusted_mode); + DRM_DEBUG_KMS("gmch pfit: control: 0x%08x, ratios: 0x%08x, lvds border: 0x%08x\n", + pipe_config->gmch_pfit.control, + pipe_config->gmch_pfit.pgm_ratios, + pipe_config->gmch_pfit.lvds_border_bits); + DRM_DEBUG_KMS("pch pfit: pos: 0x%08x, size: 0x%08x\n", + pipe_config->pch_pfit.pos, + pipe_config->pch_pfit.size); +} + static struct intel_crtc_config * intel_modeset_pipe_config(struct drm_crtc *crtc, struct drm_framebuffer *fb, @@ -7755,8 +7769,6 @@ encoder_retry: goto encoder_retry; } - DRM_DEBUG_KMS("[CRTC:%d]\n", crtc->base.id); - pipe_config->dither = pipe_config->pipe_bpp != plane_bpp; DRM_DEBUG_KMS("plane bpp: %i, pipe bpp: %i, dithering: %i\n", plane_bpp, pipe_config->pipe_bpp, pipe_config->dither); @@ -8113,9 +8125,14 @@ intel_modeset_check_state(struct drm_device *dev) "crtc active state doesn't match with hw state " "(expected %i, found %i)\n", crtc->active, active); - WARN(active && - !intel_pipe_config_compare(dev, &crtc->config, &pipe_config), - "pipe state doesn't match!\n"); + if (active && + !intel_pipe_config_compare(dev, &crtc->config, &pipe_config)) { + WARN(1, "pipe state doesn't match!\n"); + intel_dump_pipe_config(crtc, &pipe_config, + "[hw state]"); + intel_dump_pipe_config(crtc, &crtc->config, + "[sw state]"); + } } } @@ -8155,6 +8172,8 @@ static int __intel_set_mode(struct drm_crtc *crtc, goto out; } + intel_dump_pipe_config(to_intel_crtc(crtc), pipe_config, + "[modeset]"); } for_each_intel_crtc_masked(dev, disable_pipes, intel_crtc) @@ -8491,12 +8510,6 @@ static int intel_crtc_set_config(struct drm_mode_set *set) goto fail; if (config->mode_changed) { - if (set->mode) { - DRM_DEBUG_KMS("attempting to set mode from" - " userspace\n"); - drm_mode_debug_printmodeline(set->mode); - } - ret = intel_set_mode(set->crtc, set->mode, set->x, set->y, set->fb); if (ret) { @@ -9516,6 +9529,7 @@ void intel_modeset_setup_hw_state(struct drm_device *dev, for_each_pipe(pipe) { crtc = to_intel_crtc(dev_priv->pipe_to_crtc_mapping[pipe]); intel_sanitize_crtc(crtc); + intel_dump_pipe_config(crtc, &crtc->config, "[setup_hw_state]"); } if (force_restore) { -- 2.34.1