| Message ID | 20131205104956.GX10036@intel.com (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
Hi Ville, On Thu, 05 December 2013 Ville Syrjälä wrote: > On Wed, Dec 04, 2013 at 09:09:22PM +0100, Bruno Prémont wrote: > > [ 1.621199] [drm:intel_pipe_config_compare] *ERROR* mismatch in adjusted_mode.crtc_clock (expected 108000, found 48000) > > Hmm. Kind of looks like we're reading/parsing the PLL registers incorrectly. > > Let's try to see what the driver thinks the registers contain: Below a summary of the PLL values, full dmesg attached (gzip-compressed to be polite on mailboxes): ... [ 0.976312] [drm:intel_dump_pipe_config], DPLL = 0x808b0000 [ 0.976315] [drm:intel_dump_pipe_config], DPLL_MD = 0x0 [ 0.976317] [drm:intel_dump_pipe_config], FP0 = 0x21207 [ 0.976319] [drm:intel_dump_pipe_config], FP1 = 0x21207 ... [ 0.976367] [drm:intel_dump_pipe_config], DPLL = 0x90020000 [ 0.976369] [drm:intel_dump_pipe_config], DPLL_MD = 0x0 [ 0.976371] [drm:intel_dump_pipe_config], FP0 = 0x2140e [ 0.976373] [drm:intel_dump_pipe_config], FP1 = 0x21207 ... [ 1.030670] [drm:intel_dump_pipe_config], DPLL = 0x0 [ 1.030672] [drm:intel_dump_pipe_config], DPLL_MD = 0x0 [ 1.030674] [drm:intel_dump_pipe_config], FP0 = 0x0 [ 1.030676] [drm:intel_dump_pipe_config], FP1 = 0x0 ... [ 1.132925] [drm:intel_dump_pipe_config], DPLL = 0x0 [ 1.132927] [drm:intel_dump_pipe_config], DPLL_MD = 0x0 [ 1.132928] [drm:intel_dump_pipe_config], FP0 = 0x0 [ 1.132929] [drm:intel_dump_pipe_config], FP1 = 0x0 ... [ 1.691202] [drm:intel_pipe_config_compare] *ERROR* mismatch in adjusted_mode.crtc_clock (expected 108000, found 48000) [ 1.691203] ------------[ cut here ]------------ [ 1.691214] WARNING: CPU: 0 PID: 1 at /home/Projects/Linux-git/drivers/gpu/drm/i915/intel_display.c:9288 check_crtc_state+0x6eb/0xe60() [ 1.691215] pipe state doesn't match! [ 1.691217] Modules linked in: ... [ 1.691488] [drm:intel_dump_pipe_config], DPLL = 0x90020000 [ 1.691489] [drm:intel_dump_pipe_config], DPLL_MD = 0x0 [ 1.691491] [drm:intel_dump_pipe_config], FP0 = 0x3170d [ 1.691492] [drm:intel_dump_pipe_config], FP1 = 0x3170d ... [ 1.691528] [drm:intel_dump_pipe_config], DPLL = 0x90020000 [ 1.691530] [drm:intel_dump_pipe_config], DPLL_MD = 0x0 [ 1.691531] [drm:intel_dump_pipe_config], FP0 = 0x3170d [ 1.691532] [drm:intel_dump_pipe_config], FP1 = 0x3170d ... [ 1.803189] i915 0000:00:02.0: fb0: inteldrmfb frame buffer device [ 1.805213] i915 0000:00:02.0: registered panic notifier [ 1.807248] [drm] Initialized i915 1.6.0 20080730 for 0000:00:02.0 on minor 0 ... [ 53.589413] [drm:intel_dump_pipe_config], DPLL = 0x0 [ 53.589418] [drm:intel_dump_pipe_config], DPLL_MD = 0x0 [ 53.589424] [drm:intel_dump_pipe_config], FP0 = 0x0 [ 53.589429] [drm:intel_dump_pipe_config], FP1 = 0x0 ... [ 53.641132] [drm:intel_pipe_config_compare] *ERROR* mismatch in adjusted_mode.crtc_clock (expected 108000, found 48000) [ 53.641139] ------------[ cut here ]------------ [ 53.641165] WARNING: CPU: 0 PID: 2176 at /home/Projects/Linux-git/drivers/gpu/drm/i915/intel_display.c:9288 check_crtc_state+0x6eb/0xe60() [ 53.641171] pipe state doesn't match! ... [ 53.641710] [drm:intel_dump_pipe_config], DPLL = 0x90020000 [ 53.641716] [drm:intel_dump_pipe_config], DPLL_MD = 0x0 [ 53.641721] [drm:intel_dump_pipe_config], FP0 = 0x3170d [ 53.641726] [drm:intel_dump_pipe_config], FP1 = 0x3170d ... [ 53.641847] [drm:intel_dump_pipe_config], DPLL = 0x90020000 [ 53.641853] [drm:intel_dump_pipe_config], DPLL_MD = 0x0 [ 53.641858] [drm:intel_dump_pipe_config], FP0 = 0x3170d [ 53.641863] [drm:intel_dump_pipe_config], FP1 = 0x3170d ... [ 53.696988] [drm:intel_pipe_config_compare] *ERROR* mismatch in adjusted_mode.crtc_clock (expected 108000, found 48000) [ 53.696995] ------------[ cut here ]------------ [ 53.697012] WARNING: CPU: 0 PID: 2176 at /home/Projects/Linux-git/drivers/gpu/drm/i915/intel_display.c:9288 check_crtc_state+0x6eb/0xe60() [ 53.697017] pipe state doesn't match! ... Bruno
diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c index 3f2f1d2..b8f9077 100644 --- a/drivers/gpu/drm/i915/intel_display.c +++ b/drivers/gpu/drm/i915/intel_display.c @@ -8976,6 +8976,10 @@ static void intel_dump_pipe_config(struct intel_crtc *crtc, pipe_config->pch_pfit.enabled ? "enabled" : "disabled"); DRM_DEBUG_KMS("ips: %i\n", pipe_config->ips_enabled); DRM_DEBUG_KMS("double wide: %i\n", pipe_config->double_wide); + DRM_DEBUG_KMS("DPLL = 0x%x\n", pipe_config->dpll_hw_state.dpll); + DRM_DEBUG_KMS("DPLL_MD = 0x%x\n", pipe_config->dpll_hw_state.dpll_md); + DRM_DEBUG_KMS("FP0 = 0x%x\n", pipe_config->dpll_hw_state.fp0); + DRM_DEBUG_KMS("FP1 = 0x%x\n", pipe_config->dpll_hw_state.fp1); } static bool check_encoder_cloning(struct drm_crtc *crtc)