From 762034675ee7476180eb3e7fc6c7b52db71654ed Mon Sep 17 00:00:00 2001 From: =?utf8?q?Ville=20Syrj=C3=A4l=C3=A4?= Date: Mon, 14 May 2018 20:24:21 +0300 Subject: [PATCH] drm/i915: Clean up SDVO pipe select bits MIME-Version: 1.0 Content-Type: text/plain; charset=utf8 Content-Transfer-Encoding: 8bit Clean up the SDVO pipe select bits. To make the whole situation a bit less ugly we'll start to share the same code between .get_hw_state() and the port state asserts. v2: Order the defines shift,mask,value (Jani) Reviewed-by: Jani Nikula Signed-off-by: Ville Syrjälä Link: https://patchwork.freedesktop.org/patch/msgid/20180514172423.9302-3-ville.syrjala@linux.intel.com --- drivers/gpu/drm/i915/i915_reg.h | 10 ++++---- drivers/gpu/drm/i915/intel_display.c | 46 +++++++++++++----------------------- drivers/gpu/drm/i915/intel_drv.h | 2 ++ drivers/gpu/drm/i915/intel_hdmi.c | 25 ++++---------------- drivers/gpu/drm/i915/intel_sdvo.c | 38 ++++++++++++++++++----------- 5 files changed, 52 insertions(+), 69 deletions(-) diff --git a/drivers/gpu/drm/i915/i915_reg.h b/drivers/gpu/drm/i915/i915_reg.h index 753b8f1..f1c8323 100644 --- a/drivers/gpu/drm/i915/i915_reg.h +++ b/drivers/gpu/drm/i915/i915_reg.h @@ -4297,9 +4297,9 @@ enum { /* Gen 3 SDVO bits: */ #define SDVO_ENABLE (1 << 31) -#define SDVO_PIPE_SEL(pipe) ((pipe) << 30) +#define SDVO_PIPE_SEL_SHIFT 30 #define SDVO_PIPE_SEL_MASK (1 << 30) -#define SDVO_PIPE_B_SELECT (1 << 30) +#define SDVO_PIPE_SEL(pipe) ((pipe) << 30) #define SDVO_STALL_SELECT (1 << 29) #define SDVO_INTERRUPT_ENABLE (1 << 26) /* @@ -4339,12 +4339,14 @@ enum { #define SDVOB_HOTPLUG_ENABLE (1 << 23) /* SDVO only */ /* Gen 6 (CPT) SDVO/HDMI bits: */ -#define SDVO_PIPE_SEL_CPT(pipe) ((pipe) << 29) +#define SDVO_PIPE_SEL_SHIFT_CPT 29 #define SDVO_PIPE_SEL_MASK_CPT (3 << 29) +#define SDVO_PIPE_SEL_CPT(pipe) ((pipe) << 29) /* CHV SDVO/HDMI bits: */ -#define SDVO_PIPE_SEL_CHV(pipe) ((pipe) << 24) +#define SDVO_PIPE_SEL_SHIFT_CHV 24 #define SDVO_PIPE_SEL_MASK_CHV (3 << 24) +#define SDVO_PIPE_SEL_CHV(pipe) ((pipe) << 24) /* DVO port control */ diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c index a1c6cc7..817d5d3 100644 --- a/drivers/gpu/drm/i915/intel_display.c +++ b/drivers/gpu/drm/i915/intel_display.c @@ -1323,25 +1323,6 @@ static bool dp_pipe_enabled(struct drm_i915_private *dev_priv, return true; } -static bool hdmi_pipe_enabled(struct drm_i915_private *dev_priv, - enum pipe pipe, u32 val) -{ - if ((val & SDVO_ENABLE) == 0) - return false; - - if (HAS_PCH_CPT(dev_priv)) { - if ((val & SDVO_PIPE_SEL_MASK_CPT) != SDVO_PIPE_SEL_CPT(pipe)) - return false; - } else if (IS_CHERRYVIEW(dev_priv)) { - if ((val & SDVO_PIPE_SEL_MASK_CHV) != SDVO_PIPE_SEL_CHV(pipe)) - return false; - } else { - if ((val & SDVO_PIPE_SEL_MASK) != SDVO_PIPE_SEL(pipe)) - return false; - } - return true; -} - static void assert_pch_dp_disabled(struct drm_i915_private *dev_priv, enum pipe pipe, i915_reg_t reg, u32 port_sel) @@ -1357,16 +1338,21 @@ static void assert_pch_dp_disabled(struct drm_i915_private *dev_priv, } static void assert_pch_hdmi_disabled(struct drm_i915_private *dev_priv, - enum pipe pipe, i915_reg_t reg) + enum pipe pipe, enum port port, + i915_reg_t hdmi_reg) { - u32 val = I915_READ(reg); - I915_STATE_WARN(hdmi_pipe_enabled(dev_priv, pipe, val), - "PCH HDMI (0x%08x) enabled on transcoder %c, should be disabled\n", - i915_mmio_reg_offset(reg), pipe_name(pipe)); + enum pipe port_pipe; + bool state; + + state = intel_sdvo_port_enabled(dev_priv, hdmi_reg, &port_pipe); + + I915_STATE_WARN(state && port_pipe == pipe, + "PCH HDMI %c enabled on transcoder %c, should be disabled\n", + port_name(port), pipe_name(pipe)); - I915_STATE_WARN(HAS_PCH_IBX(dev_priv) && (val & SDVO_ENABLE) == 0 - && (val & SDVO_PIPE_B_SELECT), - "IBX PCH hdmi port still using transcoder B\n"); + I915_STATE_WARN(HAS_PCH_IBX(dev_priv) && !state && port_pipe == PIPE_B, + "IBX PCH HDMI %c still using transcoder B\n", + port_name(port)); } static void assert_pch_ports_disabled(struct drm_i915_private *dev_priv, @@ -1388,9 +1374,9 @@ static void assert_pch_ports_disabled(struct drm_i915_private *dev_priv, "PCH LVDS enabled on transcoder %c, should be disabled\n", pipe_name(pipe)); - assert_pch_hdmi_disabled(dev_priv, pipe, PCH_HDMIB); - assert_pch_hdmi_disabled(dev_priv, pipe, PCH_HDMIC); - assert_pch_hdmi_disabled(dev_priv, pipe, PCH_HDMID); + assert_pch_hdmi_disabled(dev_priv, pipe, PORT_B, PCH_HDMIB); + assert_pch_hdmi_disabled(dev_priv, pipe, PORT_C, PCH_HDMIC); + assert_pch_hdmi_disabled(dev_priv, pipe, PORT_D, PCH_HDMID); } static void _vlv_enable_pll(struct intel_crtc *crtc, diff --git a/drivers/gpu/drm/i915/intel_drv.h b/drivers/gpu/drm/i915/intel_drv.h index 911d496..12002fc7 100644 --- a/drivers/gpu/drm/i915/intel_drv.h +++ b/drivers/gpu/drm/i915/intel_drv.h @@ -2064,6 +2064,8 @@ void intel_init_ipc(struct drm_i915_private *dev_priv); void intel_enable_ipc(struct drm_i915_private *dev_priv); /* intel_sdvo.c */ +bool intel_sdvo_port_enabled(struct drm_i915_private *dev_priv, + i915_reg_t sdvo_reg, enum pipe *pipe); bool intel_sdvo_init(struct drm_i915_private *dev_priv, i915_reg_t reg, enum port port); diff --git a/drivers/gpu/drm/i915/intel_hdmi.c b/drivers/gpu/drm/i915/intel_hdmi.c index ee929f3..ba5ea61f 100644 --- a/drivers/gpu/drm/i915/intel_hdmi.c +++ b/drivers/gpu/drm/i915/intel_hdmi.c @@ -1161,33 +1161,16 @@ static void intel_hdmi_prepare(struct intel_encoder *encoder, static bool intel_hdmi_get_hw_state(struct intel_encoder *encoder, enum pipe *pipe) { - struct drm_device *dev = encoder->base.dev; - struct drm_i915_private *dev_priv = to_i915(dev); + struct drm_i915_private *dev_priv = to_i915(encoder->base.dev); struct intel_hdmi *intel_hdmi = enc_to_intel_hdmi(&encoder->base); - u32 tmp; bool ret; if (!intel_display_power_get_if_enabled(dev_priv, encoder->power_domain)) return false; - ret = false; - - tmp = I915_READ(intel_hdmi->hdmi_reg); - - if (!(tmp & SDVO_ENABLE)) - goto out; - - if (HAS_PCH_CPT(dev_priv)) - *pipe = PORT_TO_PIPE_CPT(tmp); - else if (IS_CHERRYVIEW(dev_priv)) - *pipe = SDVO_PORT_TO_PIPE_CHV(tmp); - else - *pipe = PORT_TO_PIPE(tmp); - - ret = true; + ret = intel_sdvo_port_enabled(dev_priv, intel_hdmi->hdmi_reg, pipe); -out: intel_display_power_put(dev_priv, encoder->power_domain); return ret; @@ -1421,8 +1404,8 @@ static void intel_disable_hdmi(struct intel_encoder *encoder, intel_set_cpu_fifo_underrun_reporting(dev_priv, PIPE_A, false); intel_set_pch_fifo_underrun_reporting(dev_priv, PIPE_A, false); - temp &= ~SDVO_PIPE_B_SELECT; - temp |= SDVO_ENABLE; + temp &= ~SDVO_PIPE_SEL_MASK; + temp |= SDVO_ENABLE | SDVO_PIPE_SEL(PIPE_A); /* * HW workaround, need to write this twice for issue * that may result in first write getting masked. diff --git a/drivers/gpu/drm/i915/intel_sdvo.c b/drivers/gpu/drm/i915/intel_sdvo.c index 96e213e..848b03a 100644 --- a/drivers/gpu/drm/i915/intel_sdvo.c +++ b/drivers/gpu/drm/i915/intel_sdvo.c @@ -1403,27 +1403,37 @@ static bool intel_sdvo_connector_get_hw_state(struct intel_connector *connector) return false; } +bool intel_sdvo_port_enabled(struct drm_i915_private *dev_priv, + i915_reg_t sdvo_reg, enum pipe *pipe) +{ + u32 val; + + val = I915_READ(sdvo_reg); + + /* asserts want to know the pipe even if the port is disabled */ + if (HAS_PCH_CPT(dev_priv)) + *pipe = (val & SDVO_PIPE_SEL_MASK_CPT) >> SDVO_PIPE_SEL_SHIFT_CPT; + else if (IS_CHERRYVIEW(dev_priv)) + *pipe = (val & SDVO_PIPE_SEL_MASK_CHV) >> SDVO_PIPE_SEL_SHIFT_CHV; + else + *pipe = (val & SDVO_PIPE_SEL_MASK) >> SDVO_PIPE_SEL_SHIFT; + + return val & SDVO_ENABLE; +} + static bool intel_sdvo_get_hw_state(struct intel_encoder *encoder, enum pipe *pipe) { - struct drm_device *dev = encoder->base.dev; - struct drm_i915_private *dev_priv = to_i915(dev); + struct drm_i915_private *dev_priv = to_i915(encoder->base.dev); struct intel_sdvo *intel_sdvo = to_sdvo(encoder); u16 active_outputs = 0; - u32 tmp; + bool ret; - tmp = I915_READ(intel_sdvo->sdvo_reg); intel_sdvo_get_active_outputs(intel_sdvo, &active_outputs); - if (!(tmp & SDVO_ENABLE) && (active_outputs == 0)) - return false; - - if (HAS_PCH_CPT(dev_priv)) - *pipe = PORT_TO_PIPE_CPT(tmp); - else - *pipe = PORT_TO_PIPE(tmp); + ret = intel_sdvo_port_enabled(dev_priv, intel_sdvo->sdvo_reg, pipe); - return true; + return ret || active_outputs; } static void intel_sdvo_get_config(struct intel_encoder *encoder, @@ -1550,8 +1560,8 @@ static void intel_disable_sdvo(struct intel_encoder *encoder, intel_set_cpu_fifo_underrun_reporting(dev_priv, PIPE_A, false); intel_set_pch_fifo_underrun_reporting(dev_priv, PIPE_A, false); - temp &= ~SDVO_PIPE_B_SELECT; - temp |= SDVO_ENABLE; + temp &= ~SDVO_PIPE_SEL_MASK; + temp |= SDVO_ENABLE | SDVO_PIPE_SEL(PIPE_A); intel_sdvo_write_sdvox(intel_sdvo, temp); temp &= ~SDVO_ENABLE; -- 2.7.4