On Thu, Oct 04, 2018 at 03:25:42PM +0200, Maarten Lankhorst wrote: > Op 04-10-18 om 14:57 schreef Ville Syrjälä: > > On Thu, Oct 04, 2018 at 11:45:59AM +0200, Maarten Lankhorst wrote: > >> Do not rely on crtc->config any more. Remove the assertion from > >> ibx_pch_dpll_disable, because we the dpll state tracking should > >> already handle this case correctly. > >> > >> Signed-off-by: Maarten Lankhorst <maarten.lankho...@linux.intel.com> > >> Reviewed-by: Ville Syrjälä <ville.syrj...@linux.intel.com> > >> --- > >> drivers/gpu/drm/i915/intel_display.c | 14 ++++++------ > >> drivers/gpu/drm/i915/intel_dpll_mgr.c | 31 +++++++++++---------------- > >> drivers/gpu/drm/i915/intel_dpll_mgr.h | 6 +++--- > >> 3 files changed, 22 insertions(+), 29 deletions(-) > >> > >> diff --git a/drivers/gpu/drm/i915/intel_display.c > >> b/drivers/gpu/drm/i915/intel_display.c > >> index fe8ccbdd4ea1..4df4293a7917 100644 > >> --- a/drivers/gpu/drm/i915/intel_display.c > >> +++ b/drivers/gpu/drm/i915/intel_display.c > >> @@ -4749,7 +4749,7 @@ static void ironlake_pch_enable(const struct > >> intel_atomic_state *state, > >> * Note that enable_shared_dpll tries to do the right thing, but > >> * get_shared_dpll unconditionally resets the pll - we need that to have > >> * the right LVDS enable sequence. */ > >> - intel_enable_shared_dpll(crtc); > >> + intel_enable_shared_dpll(crtc_state); > >> > >> /* set transcoder timing, panel must allow it */ > >> assert_panel_unlocked(dev_priv, pipe); > >> @@ -5591,8 +5591,8 @@ static void ironlake_crtc_enable(struct > >> intel_crtc_state *pipe_config, > >> intel_set_cpu_fifo_underrun_reporting(dev_priv, pipe, false); > >> intel_set_pch_fifo_underrun_reporting(dev_priv, pipe, false); > >> > >> - if (intel_crtc->config->has_pch_encoder) > >> - intel_prepare_shared_dpll(intel_crtc); > >> + if (pipe_config->has_pch_encoder) > >> + intel_prepare_shared_dpll(pipe_config); > >> > >> if (intel_crtc_has_dp_encoder(intel_crtc->config)) > >> intel_dp_set_m_n(intel_crtc, M1_N1); > >> @@ -5710,8 +5710,8 @@ static void haswell_crtc_enable(struct > >> intel_crtc_state *pipe_config, > >> > >> intel_encoders_pre_pll_enable(crtc, pipe_config, old_state); > >> > >> - if (intel_crtc->config->shared_dpll) > >> - intel_enable_shared_dpll(intel_crtc); > >> + if (pipe_config->shared_dpll) > >> + intel_enable_shared_dpll(pipe_config); > >> > >> if (INTEL_GEN(dev_priv) >= 11) > >> icl_map_plls_to_ports(crtc, pipe_config, old_state); > >> @@ -6286,7 +6286,7 @@ static void intel_crtc_disable_noatomic(struct > >> drm_crtc *crtc, > >> > >> intel_fbc_disable(intel_crtc); > >> intel_update_watermarks(intel_crtc); > >> - intel_disable_shared_dpll(intel_crtc); > >> + intel_disable_shared_dpll(crtc_state); > > I guess this is the explosion on i915g/i965g. We've already freed this > > crtc state at this point. So I guess s/crtc_state/crtc->state/ and it > > should be fine? > > > No, the explosion is at > > - if (WARN_ON(pll == NULL)) > + if (!WARN_ON(!pll)) > return; > > Oops! Should be fixed in v2 I'm sending now.
<4>[ 11.181254] R10: 0000000000000000 R11: 0000000000000000 R12: 6b6b6b6b6b6b6b6b <4>[ 11.181141] RIP: 0010:intel_disable_shared_dpll+0x12/0x130 [i915] <4>[ 11.181157] Code: c7 e9 67 25 a0 e8 9e da ec e0 0f 0b e9 18 ff ff ff 0f 1f 80 00 00 00 00 41 56 41 55 41 54 55 53 4c 8b 27 48 8b 9f 98 02 00 00 <4d> 8b 34 24 41 80 be 5c 0d 00 00 04 76 05 48 85 db 75 09 5b 5d 41 72a: 4d 8b 34 24 mov (%r12),%r14 Looks like it's still trying to drink poison. -- Ville Syrjälä Intel _______________________________________________ Intel-gfx mailing list Intel-gfx@lists.freedesktop.org https://lists.freedesktop.org/mailman/listinfo/intel-gfx
