From: Jani Nikula Date: Thu, 30 Sep 2021 09:22:59 +0000 (+0300) Subject: drm/i915/pps: move pps (panel) modeset asserts to intel_pps.c X-Git-Tag: v6.6.17~3937^2~17^2~2197 X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=aa0813b1ba31c345fb745bc8ece6e5b7cbfca71b;p=platform%2Fkernel%2Flinux-rpi.git drm/i915/pps: move pps (panel) modeset asserts to intel_pps.c Move assert_panel_unlocked() to intel_pps.c and rename assert_pps_unlocked(). Keep the functionality and the assert code together. There's still a bit of a split between the eDP PPS usage in intel_pps.c and all the other PPS usage, and assert_pps_unlocked() is arguably more related to the latter. However, intel_pps.c is the best fit for anything touching the PPS registers. Reviewed-by: Ville Syrjälä Signed-off-by: Jani Nikula Link: https://patchwork.freedesktop.org/patch/msgid/a9b77692a145891789eefb0447e082cfc22aaa85.1632992608.git.jani.nikula@intel.com --- diff --git a/drivers/gpu/drm/i915/display/intel_display.c b/drivers/gpu/drm/i915/display/intel_display.c index 05e42903bde0..34201e71593b 100644 --- a/drivers/gpu/drm/i915/display/intel_display.c +++ b/drivers/gpu/drm/i915/display/intel_display.c @@ -428,64 +428,6 @@ void assert_dsi_pll(struct drm_i915_private *dev_priv, bool state) onoff(state), onoff(cur_state)); } -void assert_panel_unlocked(struct drm_i915_private *dev_priv, enum pipe pipe) -{ - i915_reg_t pp_reg; - u32 val; - enum pipe panel_pipe = INVALID_PIPE; - bool locked = true; - - if (drm_WARN_ON(&dev_priv->drm, HAS_DDI(dev_priv))) - return; - - if (HAS_PCH_SPLIT(dev_priv)) { - u32 port_sel; - - pp_reg = PP_CONTROL(0); - port_sel = intel_de_read(dev_priv, PP_ON_DELAYS(0)) & PANEL_PORT_SELECT_MASK; - - switch (port_sel) { - case PANEL_PORT_SELECT_LVDS: - intel_lvds_port_enabled(dev_priv, PCH_LVDS, &panel_pipe); - break; - case PANEL_PORT_SELECT_DPA: - g4x_dp_port_enabled(dev_priv, DP_A, PORT_A, &panel_pipe); - break; - case PANEL_PORT_SELECT_DPC: - g4x_dp_port_enabled(dev_priv, PCH_DP_C, PORT_C, &panel_pipe); - break; - case PANEL_PORT_SELECT_DPD: - g4x_dp_port_enabled(dev_priv, PCH_DP_D, PORT_D, &panel_pipe); - break; - default: - MISSING_CASE(port_sel); - break; - } - } else if (IS_VALLEYVIEW(dev_priv) || IS_CHERRYVIEW(dev_priv)) { - /* presumably write lock depends on pipe, not port select */ - pp_reg = PP_CONTROL(pipe); - panel_pipe = pipe; - } else { - u32 port_sel; - - pp_reg = PP_CONTROL(0); - port_sel = intel_de_read(dev_priv, PP_ON_DELAYS(0)) & PANEL_PORT_SELECT_MASK; - - drm_WARN_ON(&dev_priv->drm, - port_sel != PANEL_PORT_SELECT_LVDS); - intel_lvds_port_enabled(dev_priv, LVDS, &panel_pipe); - } - - val = intel_de_read(dev_priv, pp_reg); - if (!(val & PANEL_POWER_ON) || - ((val & PANEL_UNLOCK_MASK) == PANEL_UNLOCK_REGS)) - locked = false; - - I915_STATE_WARN(panel_pipe == pipe && locked, - "panel assertion failure, pipe %c regs locked\n", - pipe_name(pipe)); -} - void assert_transcoder(struct drm_i915_private *dev_priv, enum transcoder cpu_transcoder, bool state) { @@ -2128,7 +2070,7 @@ static void ilk_pch_enable(const struct intel_atomic_state *state, intel_enable_shared_dpll(crtc_state); /* set transcoder timing, panel must allow it */ - assert_panel_unlocked(dev_priv, pipe); + assert_pps_unlocked(dev_priv, pipe); ilk_pch_transcoder_set_timings(crtc_state, pipe); intel_fdi_normal_train(crtc); diff --git a/drivers/gpu/drm/i915/display/intel_display.h b/drivers/gpu/drm/i915/display/intel_display.h index 8cb3bb33cbe0..5306d119b2c0 100644 --- a/drivers/gpu/drm/i915/display/intel_display.h +++ b/drivers/gpu/drm/i915/display/intel_display.h @@ -645,8 +645,6 @@ void intel_init_pch_refclk(struct drm_i915_private *dev_priv); int intel_modeset_all_pipes(struct intel_atomic_state *state); /* modesetting asserts */ -void assert_panel_unlocked(struct drm_i915_private *dev_priv, - enum pipe pipe); void assert_pll(struct drm_i915_private *dev_priv, enum pipe pipe, bool state); #define assert_pll_enabled(d, p) assert_pll(d, p, true) diff --git a/drivers/gpu/drm/i915/display/intel_dpll.c b/drivers/gpu/drm/i915/display/intel_dpll.c index 784e3ee658b5..66784204f6f7 100644 --- a/drivers/gpu/drm/i915/display/intel_dpll.c +++ b/drivers/gpu/drm/i915/display/intel_dpll.c @@ -2,16 +2,19 @@ /* * Copyright © 2020 Intel Corporation */ + #include + #include "intel_crtc.h" #include "intel_de.h" -#include "intel_display_types.h" #include "intel_display.h" +#include "intel_display_types.h" #include "intel_dpll.h" #include "intel_lvds.h" #include "intel_panel.h" +#include "intel_pps.h" #include "intel_sideband.h" -#include "display/intel_snps_phy.h" +#include "intel_snps_phy.h" struct intel_limit { struct { @@ -1438,7 +1441,7 @@ void i9xx_enable_pll(const struct intel_crtc_state *crtc_state) /* PLL is protected by panel, make sure we can write it */ if (i9xx_has_pps(dev_priv)) - assert_panel_unlocked(dev_priv, pipe); + assert_pps_unlocked(dev_priv, pipe); intel_de_write(dev_priv, FP0(pipe), crtc_state->dpll_hw_state.fp0); intel_de_write(dev_priv, FP1(pipe), crtc_state->dpll_hw_state.fp1); @@ -1617,7 +1620,7 @@ void vlv_enable_pll(const struct intel_crtc_state *crtc_state) assert_transcoder_disabled(dev_priv, crtc_state->cpu_transcoder); /* PLL is protected by panel, make sure we can write it */ - assert_panel_unlocked(dev_priv, pipe); + assert_pps_unlocked(dev_priv, pipe); /* Enable Refclk */ intel_de_write(dev_priv, DPLL(pipe), @@ -1769,7 +1772,7 @@ void chv_enable_pll(const struct intel_crtc_state *crtc_state) assert_transcoder_disabled(dev_priv, crtc_state->cpu_transcoder); /* PLL is protected by panel, make sure we can write it */ - assert_panel_unlocked(dev_priv, pipe); + assert_pps_unlocked(dev_priv, pipe); /* Enable Refclk and SSC */ intel_de_write(dev_priv, DPLL(pipe), diff --git a/drivers/gpu/drm/i915/display/intel_pps.c b/drivers/gpu/drm/i915/display/intel_pps.c index a36ec4a818ff..e9c679bb1b2e 100644 --- a/drivers/gpu/drm/i915/display/intel_pps.c +++ b/drivers/gpu/drm/i915/display/intel_pps.c @@ -9,6 +9,7 @@ #include "intel_display_types.h" #include "intel_dp.h" #include "intel_dpll.h" +#include "intel_lvds.h" #include "intel_pps.h" static void vlv_steal_power_sequencer(struct drm_i915_private *dev_priv, @@ -1408,3 +1409,61 @@ void intel_pps_setup(struct drm_i915_private *i915) else i915->pps_mmio_base = PPS_BASE; } + +void assert_pps_unlocked(struct drm_i915_private *dev_priv, enum pipe pipe) +{ + i915_reg_t pp_reg; + u32 val; + enum pipe panel_pipe = INVALID_PIPE; + bool locked = true; + + if (drm_WARN_ON(&dev_priv->drm, HAS_DDI(dev_priv))) + return; + + if (HAS_PCH_SPLIT(dev_priv)) { + u32 port_sel; + + pp_reg = PP_CONTROL(0); + port_sel = intel_de_read(dev_priv, PP_ON_DELAYS(0)) & PANEL_PORT_SELECT_MASK; + + switch (port_sel) { + case PANEL_PORT_SELECT_LVDS: + intel_lvds_port_enabled(dev_priv, PCH_LVDS, &panel_pipe); + break; + case PANEL_PORT_SELECT_DPA: + g4x_dp_port_enabled(dev_priv, DP_A, PORT_A, &panel_pipe); + break; + case PANEL_PORT_SELECT_DPC: + g4x_dp_port_enabled(dev_priv, PCH_DP_C, PORT_C, &panel_pipe); + break; + case PANEL_PORT_SELECT_DPD: + g4x_dp_port_enabled(dev_priv, PCH_DP_D, PORT_D, &panel_pipe); + break; + default: + MISSING_CASE(port_sel); + break; + } + } else if (IS_VALLEYVIEW(dev_priv) || IS_CHERRYVIEW(dev_priv)) { + /* presumably write lock depends on pipe, not port select */ + pp_reg = PP_CONTROL(pipe); + panel_pipe = pipe; + } else { + u32 port_sel; + + pp_reg = PP_CONTROL(0); + port_sel = intel_de_read(dev_priv, PP_ON_DELAYS(0)) & PANEL_PORT_SELECT_MASK; + + drm_WARN_ON(&dev_priv->drm, + port_sel != PANEL_PORT_SELECT_LVDS); + intel_lvds_port_enabled(dev_priv, LVDS, &panel_pipe); + } + + val = intel_de_read(dev_priv, pp_reg); + if (!(val & PANEL_POWER_ON) || + ((val & PANEL_UNLOCK_MASK) == PANEL_UNLOCK_REGS)) + locked = false; + + I915_STATE_WARN(panel_pipe == pipe && locked, + "panel assertion failure, pipe %c regs locked\n", + pipe_name(pipe)); +} diff --git a/drivers/gpu/drm/i915/display/intel_pps.h b/drivers/gpu/drm/i915/display/intel_pps.h index fbbcca782e7b..fbb47f6f453e 100644 --- a/drivers/gpu/drm/i915/display/intel_pps.h +++ b/drivers/gpu/drm/i915/display/intel_pps.h @@ -10,6 +10,7 @@ #include "intel_wakeref.h" +enum pipe; struct drm_i915_private; struct intel_connector; struct intel_crtc_state; @@ -49,4 +50,6 @@ void vlv_pps_init(struct intel_encoder *encoder, void intel_pps_unlock_regs_wa(struct drm_i915_private *i915); void intel_pps_setup(struct drm_i915_private *i915); +void assert_pps_unlocked(struct drm_i915_private *i915, enum pipe pipe); + #endif /* __INTEL_PPS_H__ */