All of lore.kernel.org
 help / color / mirror / Atom feed
From: Ville Syrjala <ville.syrjala@linux.intel.com>
To: intel-gfx@lists.freedesktop.org
Cc: Dave Airlie <airlied@redhat.com>, Jani Nikula <jani.nikula@intel.com>
Subject: [Intel-gfx] [PATCH v2 4/9] drm/i915: Move LPT PCH readout code
Date: Mon, 18 Oct 2021 18:35:25 +0300	[thread overview]
Message-ID: <20211018153525.21597-1-ville.syrjala@linux.intel.com> (raw)
In-Reply-To: <20211015071625.593-5-ville.syrjala@linux.intel.com>

From: Ville Syrjälä <ville.syrjala@linux.intel.com>

Nuke the hsw_get_ddi_port_state() eyesore by putting the
readout code into intel_pch_display.c, and calling it directly
from hsw_crt_get_config().

Note that the nuked TRANS_DDI_FUNC_CTL readout from
hsw_get_ddi_port_state() is now etirely redundant since we
get called from the encoder->get_config() so we already know
we're dealing with the correct DDI port. Previously the
code was called from a place where that wasn't known so
it had to checked manually.

v2: Clarify the TRANS_DDI_FUNC_CTL change (Dave)
    Nuke the now unused *TRANS_DDI_FUNC_CTL_VAL_TO_PORT() (Dave)

Cc: Dave Airlie <airlied@redhat.com>
Cc: Jani Nikula <jani.nikula@intel.com>
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
---
 drivers/gpu/drm/i915/display/intel_crt.c      |  2 +
 drivers/gpu/drm/i915/display/intel_display.c  | 46 ++-----------------
 drivers/gpu/drm/i915/display/intel_display.h  |  2 +
 .../gpu/drm/i915/display/intel_pch_display.c  | 18 ++++++++
 .../gpu/drm/i915/display/intel_pch_display.h  |  1 +
 drivers/gpu/drm/i915/i915_reg.h               |  2 -
 6 files changed, 26 insertions(+), 45 deletions(-)

diff --git a/drivers/gpu/drm/i915/display/intel_crt.c b/drivers/gpu/drm/i915/display/intel_crt.c
index 4038ae342ea1..03cfae46f92f 100644
--- a/drivers/gpu/drm/i915/display/intel_crt.c
+++ b/drivers/gpu/drm/i915/display/intel_crt.c
@@ -147,6 +147,8 @@ static void hsw_crt_get_config(struct intel_encoder *encoder,
 {
 	struct drm_i915_private *dev_priv = to_i915(encoder->base.dev);
 
+	lpt_pch_get_config(pipe_config);
+
 	hsw_ddi_get_config(encoder, pipe_config);
 
 	pipe_config->hw.adjusted_mode.flags &= ~(DRM_MODE_FLAG_PHSYNC |
diff --git a/drivers/gpu/drm/i915/display/intel_display.c b/drivers/gpu/drm/i915/display/intel_display.c
index 2ee02c16bd1c..8f65b8b6a306 100644
--- a/drivers/gpu/drm/i915/display/intel_display.c
+++ b/drivers/gpu/drm/i915/display/intel_display.c
@@ -4090,8 +4090,8 @@ void intel_dp_get_m_n(struct intel_crtc *crtc,
 					     &pipe_config->dp_m2_n2);
 }
 
-static void ilk_get_fdi_m_n_config(struct intel_crtc *crtc,
-				   struct intel_crtc_state *pipe_config)
+void ilk_get_fdi_m_n_config(struct intel_crtc *crtc,
+			    struct intel_crtc_state *pipe_config)
 {
 	intel_cpu_transcoder_get_m_n(crtc, pipe_config->cpu_transcoder,
 				     &pipe_config->fdi_m_n, NULL);
@@ -4486,45 +4486,6 @@ static bool bxt_get_dsi_transcoder_state(struct intel_crtc *crtc,
 	return transcoder_is_dsi(pipe_config->cpu_transcoder);
 }
 
-static void hsw_get_ddi_port_state(struct intel_crtc *crtc,
-				   struct intel_crtc_state *pipe_config)
-{
-	struct drm_i915_private *dev_priv = to_i915(crtc->base.dev);
-	enum transcoder cpu_transcoder = pipe_config->cpu_transcoder;
-	enum port port;
-	u32 tmp;
-
-	if (transcoder_is_dsi(cpu_transcoder)) {
-		port = (cpu_transcoder == TRANSCODER_DSI_A) ?
-						PORT_A : PORT_B;
-	} else {
-		tmp = intel_de_read(dev_priv,
-				    TRANS_DDI_FUNC_CTL(cpu_transcoder));
-		if (!(tmp & TRANS_DDI_FUNC_ENABLE))
-			return;
-		if (DISPLAY_VER(dev_priv) >= 12)
-			port = TGL_TRANS_DDI_FUNC_CTL_VAL_TO_PORT(tmp);
-		else
-			port = TRANS_DDI_FUNC_CTL_VAL_TO_PORT(tmp);
-	}
-
-	/*
-	 * Haswell has only FDI/PCH transcoder A. It is which is connected to
-	 * DDI E. So just check whether this pipe is wired to DDI E and whether
-	 * the PCH transcoder is on.
-	 */
-	if (DISPLAY_VER(dev_priv) < 9 &&
-	    (port == PORT_E) && intel_de_read(dev_priv, LPT_TRANSCONF) & TRANS_ENABLE) {
-		pipe_config->has_pch_encoder = true;
-
-		tmp = intel_de_read(dev_priv, FDI_RX_CTL(PIPE_A));
-		pipe_config->fdi_lanes = ((FDI_DP_PORT_WIDTH_MASK & tmp) >>
-					  FDI_DP_PORT_WIDTH_SHIFT) + 1;
-
-		ilk_get_fdi_m_n_config(crtc, pipe_config);
-	}
-}
-
 static bool hsw_get_pipe_config(struct intel_crtc *crtc,
 				struct intel_crtc_state *pipe_config)
 {
@@ -4562,8 +4523,7 @@ static bool hsw_get_pipe_config(struct intel_crtc *crtc,
 		/* we cannot read out most state, so don't bother.. */
 		pipe_config->quirks |= PIPE_CONFIG_QUIRK_BIGJOINER_SLAVE;
 	} else if (!transcoder_is_dsi(pipe_config->cpu_transcoder) ||
-	    DISPLAY_VER(dev_priv) >= 11) {
-		hsw_get_ddi_port_state(crtc, pipe_config);
+		   DISPLAY_VER(dev_priv) >= 11) {
 		intel_get_transcoder_timings(crtc, pipe_config);
 	}
 
diff --git a/drivers/gpu/drm/i915/display/intel_display.h b/drivers/gpu/drm/i915/display/intel_display.h
index 93c84f2174b5..5bc8d8913178 100644
--- a/drivers/gpu/drm/i915/display/intel_display.h
+++ b/drivers/gpu/drm/i915/display/intel_display.h
@@ -584,6 +584,8 @@ void intel_dp_get_m_n(struct intel_crtc *crtc,
 		      struct intel_crtc_state *pipe_config);
 void intel_dp_set_m_n(const struct intel_crtc_state *crtc_state,
 		      enum link_m_n_set m_n);
+void ilk_get_fdi_m_n_config(struct intel_crtc *crtc,
+			    struct intel_crtc_state *pipe_config);
 int intel_dotclock_calculate(int link_freq, const struct intel_link_m_n *m_n);
 
 bool hsw_crtc_state_ips_capable(const struct intel_crtc_state *crtc_state);
diff --git a/drivers/gpu/drm/i915/display/intel_pch_display.c b/drivers/gpu/drm/i915/display/intel_pch_display.c
index 50995c4f2aaa..df7195ed1aaa 100644
--- a/drivers/gpu/drm/i915/display/intel_pch_display.c
+++ b/drivers/gpu/drm/i915/display/intel_pch_display.c
@@ -366,3 +366,21 @@ void lpt_pch_enable(struct intel_atomic_state *state,
 
 	lpt_enable_pch_transcoder(dev_priv, cpu_transcoder);
 }
+
+void lpt_pch_get_config(struct intel_crtc_state *crtc_state)
+{
+	struct intel_crtc *crtc = to_intel_crtc(crtc_state->uapi.crtc);
+	struct drm_i915_private *dev_priv = to_i915(crtc->base.dev);
+	u32 tmp;
+
+	if ((intel_de_read(dev_priv, LPT_TRANSCONF) & TRANS_ENABLE) == 0)
+		return;
+
+	crtc_state->has_pch_encoder = true;
+
+	tmp = intel_de_read(dev_priv, FDI_RX_CTL(PIPE_A));
+	crtc_state->fdi_lanes = ((FDI_DP_PORT_WIDTH_MASK & tmp) >>
+				 FDI_DP_PORT_WIDTH_SHIFT) + 1;
+
+	ilk_get_fdi_m_n_config(crtc, crtc_state);
+}
diff --git a/drivers/gpu/drm/i915/display/intel_pch_display.h b/drivers/gpu/drm/i915/display/intel_pch_display.h
index 7f9df2c13cf3..e0ff331c0bc6 100644
--- a/drivers/gpu/drm/i915/display/intel_pch_display.h
+++ b/drivers/gpu/drm/i915/display/intel_pch_display.h
@@ -18,5 +18,6 @@ void ilk_pch_enable(struct intel_atomic_state *state,
 void lpt_disable_pch_transcoder(struct drm_i915_private *dev_priv);
 void lpt_pch_enable(struct intel_atomic_state *state,
 		    struct intel_crtc *crtc);
+void lpt_pch_get_config(struct intel_crtc_state *crtc_state);
 
 #endif
diff --git a/drivers/gpu/drm/i915/i915_reg.h b/drivers/gpu/drm/i915/i915_reg.h
index da9055c3ebf0..9a89565fd458 100644
--- a/drivers/gpu/drm/i915/i915_reg.h
+++ b/drivers/gpu/drm/i915/i915_reg.h
@@ -10212,8 +10212,6 @@ enum skl_power_gate {
 #define  TGL_TRANS_DDI_PORT_MASK	(0xf << TGL_TRANS_DDI_PORT_SHIFT)
 #define  TRANS_DDI_SELECT_PORT(x)	((x) << TRANS_DDI_PORT_SHIFT)
 #define  TGL_TRANS_DDI_SELECT_PORT(x)	(((x) + 1) << TGL_TRANS_DDI_PORT_SHIFT)
-#define  TRANS_DDI_FUNC_CTL_VAL_TO_PORT(val)	 (((val) & TRANS_DDI_PORT_MASK) >> TRANS_DDI_PORT_SHIFT)
-#define  TGL_TRANS_DDI_FUNC_CTL_VAL_TO_PORT(val) ((((val) & TGL_TRANS_DDI_PORT_MASK) >> TGL_TRANS_DDI_PORT_SHIFT) - 1)
 #define  TRANS_DDI_MODE_SELECT_MASK	(7 << 24)
 #define  TRANS_DDI_MODE_SELECT_HDMI	(0 << 24)
 #define  TRANS_DDI_MODE_SELECT_DVI	(1 << 24)
-- 
2.32.0


  parent reply	other threads:[~2021-10-18 15:35 UTC|newest]

Thread overview: 39+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-10-15  7:16 [Intel-gfx] [PATCH 0/9] drm/i915: Move PCH modeset code into its own file Ville Syrjala
2021-10-15  7:16 ` [Intel-gfx] [PATCH 1/9] drm/i915: Move PCH refclok stuff " Ville Syrjala
2021-10-17 23:56   ` David Airlie
2021-10-18  8:13     ` Ville Syrjälä
2021-10-18 13:13       ` Ville Syrjälä
2021-10-15  7:16 ` [Intel-gfx] [PATCH 2/9] drm/i915: Move PCH modeset code to " Ville Syrjala
2021-10-17 23:57   ` David Airlie
2021-10-15  7:16 ` [Intel-gfx] [PATCH 3/9] drm/i915: Clean up the {ilk, lpt}_pch_enable() calling convention Ville Syrjala
2021-10-17 23:58   ` David Airlie
2021-10-15  7:16 ` [Intel-gfx] [PATCH 4/9] drm/i915: Move LPT PCH readout code Ville Syrjala
2021-10-18  0:19   ` David Airlie
2021-10-18  7:15     ` Ville Syrjälä
2021-10-18 15:35   ` Ville Syrjala [this message]
2021-10-18 19:46     ` [Intel-gfx] [PATCH v2 " David Airlie
2021-10-19  7:17       ` Ville Syrjälä
2021-10-15  7:16 ` [Intel-gfx] [PATCH 5/9] drm/i915: Extract ilk_pch_get_config() Ville Syrjala
2021-10-18  0:22   ` David Airlie
2021-10-15  7:16 ` [Intel-gfx] [PATCH 6/9] drm/i915: Move iCLKIP readout to the pch code Ville Syrjala
2021-10-18  0:43   ` David Airlie
2021-10-15  7:16 ` [Intel-gfx] [PATCH 7/9] drm/i915: Introduce ilk_pch_disable() and ilk_pch_post_disable() Ville Syrjala
2021-10-18  0:43   ` David Airlie
2021-10-15  7:16 ` [Intel-gfx] [PATCH 8/9] drm/i915: Move intel_ddi_fdi_post_disable() to fdi code Ville Syrjala
2021-10-18  0:43   ` David Airlie
2021-10-15  7:16 ` [Intel-gfx] [PATCH 9/9] drm/i915: Introduce lpt_pch_disable() Ville Syrjala
2021-10-15 12:11   ` kernel test robot
2021-10-15 12:11     ` kernel test robot
2021-10-15 12:56   ` kernel test robot
2021-10-15 12:56     ` kernel test robot
2021-10-15 14:38   ` kernel test robot
2021-10-15 14:38     ` kernel test robot
2021-10-18  0:44   ` David Airlie
2021-10-15  7:31 ` [Intel-gfx] ✗ Fi.CI.CHECKPATCH: warning for drm/i915: Move PCH modeset code into its own file Patchwork
2021-10-15  7:32 ` [Intel-gfx] ✗ Fi.CI.SPARSE: " Patchwork
2021-10-15  8:02 ` [Intel-gfx] ✓ Fi.CI.BAT: success " Patchwork
2021-10-15 14:45 ` [Intel-gfx] ✓ Fi.CI.IGT: " Patchwork
2021-10-18 18:37 ` [Intel-gfx] ✗ Fi.CI.CHECKPATCH: warning for drm/i915: Move PCH modeset code into its own file (rev2) Patchwork
2021-10-18 18:38 ` [Intel-gfx] ✗ Fi.CI.SPARSE: " Patchwork
2021-10-18 19:07 ` [Intel-gfx] ✓ Fi.CI.BAT: success " Patchwork
2021-10-19  1:47 ` [Intel-gfx] ✓ Fi.CI.IGT: " Patchwork

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=20211018153525.21597-1-ville.syrjala@linux.intel.com \
    --to=ville.syrjala@linux.intel.com \
    --cc=airlied@redhat.com \
    --cc=intel-gfx@lists.freedesktop.org \
    --cc=jani.nikula@intel.com \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line before the message body.
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.