summaryrefslogtreecommitdiff
diff options
context:
space:
mode:
Diffstat
-rw-r--r--drivers/gpu/drm/i915/intel_display.c86
-rw-r--r--drivers/gpu/drm/i915/intel_dp.c30
-rw-r--r--drivers/gpu/drm/i915/intel_drv.h5
3 files changed, 64 insertions, 57 deletions
diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c
index 181bd0e3228c..06dacca8257c 100644
--- a/drivers/gpu/drm/i915/intel_display.c
+++ b/drivers/gpu/drm/i915/intel_display.c
@@ -5373,15 +5373,47 @@ int ironlake_get_lanes_required(int target_clock, int link_bw, int bpp)
return bps / (link_bw * 8) + 1;
}
-static void ironlake_set_m_n(struct drm_crtc *crtc)
+void intel_pch_transcoder_set_m_n(struct intel_crtc *crtc,
+ struct intel_link_m_n *m_n)
{
- struct drm_device *dev = crtc->dev;
+ struct drm_device *dev = crtc->base.dev;
+ struct drm_i915_private *dev_priv = dev->dev_private;
+ int pipe = crtc->pipe;
+
+ I915_WRITE(TRANSDATA_M1(pipe), TU_SIZE(m_n->tu) | m_n->gmch_m);
+ I915_WRITE(TRANSDATA_N1(pipe), m_n->gmch_n);
+ I915_WRITE(TRANSDPLINK_M1(pipe), m_n->link_m);
+ I915_WRITE(TRANSDPLINK_N1(pipe), m_n->link_n);
+}
+
+void intel_cpu_transcoder_set_m_n(struct intel_crtc *crtc,
+ struct intel_link_m_n *m_n)
+{
+ struct drm_device *dev = crtc->base.dev;
struct drm_i915_private *dev_priv = dev->dev_private;
+ int pipe = crtc->pipe;
+ enum transcoder transcoder = crtc->cpu_transcoder;
+
+ if (INTEL_INFO(dev)->gen >= 5) {
+ I915_WRITE(PIPE_DATA_M1(transcoder), TU_SIZE(m_n->tu) | m_n->gmch_m);
+ I915_WRITE(PIPE_DATA_N1(transcoder), m_n->gmch_n);
+ I915_WRITE(PIPE_LINK_M1(transcoder), m_n->link_m);
+ I915_WRITE(PIPE_LINK_N1(transcoder), m_n->link_n);
+ } else {
+ I915_WRITE(PIPE_GMCH_DATA_M(pipe), TU_SIZE(m_n->tu) | m_n->gmch_m);
+ I915_WRITE(PIPE_GMCH_DATA_N(pipe), m_n->gmch_n);
+ I915_WRITE(PIPE_DP_LINK_M(pipe), m_n->link_m);
+ I915_WRITE(PIPE_DP_LINK_N(pipe), m_n->link_n);
+ }
+}
+
+static void ironlake_fdi_set_m_n(struct drm_crtc *crtc)
+{
+ struct drm_device *dev = crtc->dev;
struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
struct drm_display_mode *adjusted_mode =
&intel_crtc->config.adjusted_mode;
struct drm_display_mode *mode = &intel_crtc->config.requested_mode;
- enum transcoder cpu_transcoder = intel_crtc->cpu_transcoder;
struct intel_encoder *intel_encoder, *edp_encoder = NULL;
struct intel_link_m_n m_n = {0};
int target_clock, lane, link_bw;
@@ -5401,22 +5433,14 @@ static void ironlake_set_m_n(struct drm_crtc *crtc)
}
}
- /* FDI link */
- lane = 0;
- /* CPU eDP doesn't require FDI link, so just set DP M/N
- according to current link config */
- if (is_cpu_edp) {
- intel_edp_link_config(edp_encoder, &lane, &link_bw);
- } else {
- /* FDI is a binary signal running at ~2.7GHz, encoding
- * each output octet as 10 bits. The actual frequency
- * is stored as a divider into a 100MHz clock, and the
- * mode pixel clock is stored in units of 1KHz.
- * Hence the bw of each lane in terms of the mode signal
- * is:
- */
- link_bw = intel_fdi_link_freq(dev) * MHz(100)/KHz(1)/10;
- }
+ /* FDI is a binary signal running at ~2.7GHz, encoding
+ * each output octet as 10 bits. The actual frequency
+ * is stored as a divider into a 100MHz clock, and the
+ * mode pixel clock is stored in units of 1KHz.
+ * Hence the bw of each lane in terms of the mode signal
+ * is:
+ */
+ link_bw = intel_fdi_link_freq(dev) * MHz(100)/KHz(1)/10;
/* [e]DP over FDI requires target mode clock instead of link clock. */
if (edp_encoder)
@@ -5426,9 +5450,8 @@ static void ironlake_set_m_n(struct drm_crtc *crtc)
else
target_clock = adjusted_mode->clock;
- if (!lane)
- lane = ironlake_get_lanes_required(target_clock, link_bw,
- intel_crtc->config.pipe_bpp);
+ lane = ironlake_get_lanes_required(target_clock, link_bw,
+ intel_crtc->config.pipe_bpp);
intel_crtc->fdi_lanes = lane;
@@ -5437,10 +5460,7 @@ static void ironlake_set_m_n(struct drm_crtc *crtc)
intel_link_compute_m_n(intel_crtc->config.pipe_bpp, lane, target_clock,
link_bw, &m_n);
- I915_WRITE(PIPE_DATA_M1(cpu_transcoder), TU_SIZE(m_n.tu) | m_n.gmch_m);
- I915_WRITE(PIPE_DATA_N1(cpu_transcoder), m_n.gmch_n);
- I915_WRITE(PIPE_LINK_M1(cpu_transcoder), m_n.link_m);
- I915_WRITE(PIPE_LINK_N1(cpu_transcoder), m_n.link_n);
+ intel_cpu_transcoder_set_m_n(intel_crtc, &m_n);
}
static uint32_t ironlake_compute_dpll(struct intel_crtc *intel_crtc,
@@ -5587,6 +5607,8 @@ static int ironlake_crtc_mode_set(struct drm_crtc *crtc,
WARN(!(HAS_PCH_IBX(dev) || HAS_PCH_CPT(dev)),
"Unexpected PCH type %d\n", INTEL_PCH_TYPE(dev));
+ intel_crtc->cpu_transcoder = pipe;
+
ok = ironlake_compute_clocks(crtc, adjusted_mode, &clock,
&has_reduced_clock, &reduced_clock);
if (!ok) {
@@ -5625,7 +5647,7 @@ static int ironlake_crtc_mode_set(struct drm_crtc *crtc,
} else
intel_put_pch_pll(intel_crtc);
- if (is_dp && !is_cpu_edp)
+ if (is_dp)
intel_dp_set_m_n(crtc, mode, adjusted_mode);
for_each_encoder_on_crtc(dev, crtc, encoder)
@@ -5661,7 +5683,9 @@ static int ironlake_crtc_mode_set(struct drm_crtc *crtc,
/* Note, this also computes intel_crtc->fdi_lanes which is used below in
* ironlake_check_fdi_lanes. */
- ironlake_set_m_n(crtc);
+ intel_crtc->fdi_lanes = 0;
+ if (intel_crtc->config.has_pch_encoder)
+ ironlake_fdi_set_m_n(crtc);
fdi_config_ok = ironlake_check_fdi_lanes(intel_crtc);
@@ -5773,15 +5797,15 @@ static int haswell_crtc_mode_set(struct drm_crtc *crtc,
DRM_DEBUG_KMS("Mode for pipe %d:\n", pipe);
drm_mode_debug_printmodeline(mode);
- if (is_dp && !is_cpu_edp)
+ if (is_dp)
intel_dp_set_m_n(crtc, mode, adjusted_mode);
intel_crtc->lowfreq_avail = false;
intel_set_pipe_timings(intel_crtc, mode, adjusted_mode);
- if (!is_dp || is_cpu_edp)
- ironlake_set_m_n(crtc);
+ if (intel_crtc->config.has_pch_encoder)
+ ironlake_fdi_set_m_n(crtc);
haswell_set_pipeconf(crtc, adjusted_mode, dither);
diff --git a/drivers/gpu/drm/i915/intel_dp.c b/drivers/gpu/drm/i915/intel_dp.c
index db592e80f22c..5a209626e9a1 100644
--- a/drivers/gpu/drm/i915/intel_dp.c
+++ b/drivers/gpu/drm/i915/intel_dp.c
@@ -775,12 +775,9 @@ intel_dp_set_m_n(struct drm_crtc *crtc, struct drm_display_mode *mode,
struct drm_device *dev = crtc->dev;
struct intel_encoder *intel_encoder;
struct intel_dp *intel_dp;
- struct drm_i915_private *dev_priv = dev->dev_private;
struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
int lane_count = 4;
struct intel_link_m_n m_n;
- int pipe = intel_crtc->pipe;
- enum transcoder cpu_transcoder = intel_crtc->cpu_transcoder;
int target_clock;
/*
@@ -814,29 +811,10 @@ intel_dp_set_m_n(struct drm_crtc *crtc, struct drm_display_mode *mode,
intel_link_compute_m_n(intel_crtc->config.pipe_bpp, lane_count,
target_clock, adjusted_mode->clock, &m_n);
- if (HAS_DDI(dev)) {
- I915_WRITE(PIPE_DATA_M1(cpu_transcoder),
- TU_SIZE(m_n.tu) | m_n.gmch_m);
- I915_WRITE(PIPE_DATA_N1(cpu_transcoder), m_n.gmch_n);
- I915_WRITE(PIPE_LINK_M1(cpu_transcoder), m_n.link_m);
- I915_WRITE(PIPE_LINK_N1(cpu_transcoder), m_n.link_n);
- } else if (HAS_PCH_SPLIT(dev)) {
- I915_WRITE(TRANSDATA_M1(pipe), TU_SIZE(m_n.tu) | m_n.gmch_m);
- I915_WRITE(TRANSDATA_N1(pipe), m_n.gmch_n);
- I915_WRITE(TRANSDPLINK_M1(pipe), m_n.link_m);
- I915_WRITE(TRANSDPLINK_N1(pipe), m_n.link_n);
- } else if (IS_VALLEYVIEW(dev)) {
- I915_WRITE(PIPE_DATA_M1(pipe), TU_SIZE(m_n.tu) | m_n.gmch_m);
- I915_WRITE(PIPE_DATA_N1(pipe), m_n.gmch_n);
- I915_WRITE(PIPE_LINK_M1(pipe), m_n.link_m);
- I915_WRITE(PIPE_LINK_N1(pipe), m_n.link_n);
- } else {
- I915_WRITE(PIPE_GMCH_DATA_M(pipe),
- TU_SIZE(m_n.tu) | m_n.gmch_m);
- I915_WRITE(PIPE_GMCH_DATA_N(pipe), m_n.gmch_n);
- I915_WRITE(PIPE_DP_LINK_M(pipe), m_n.link_m);
- I915_WRITE(PIPE_DP_LINK_N(pipe), m_n.link_n);
- }
+ if (intel_crtc->config.has_pch_encoder)
+ intel_pch_transcoder_set_m_n(intel_crtc, &m_n);
+ else
+ intel_cpu_transcoder_set_m_n(intel_crtc, &m_n);
}
void intel_dp_init_link_config(struct intel_dp *intel_dp)
diff --git a/drivers/gpu/drm/i915/intel_drv.h b/drivers/gpu/drm/i915/intel_drv.h
index 2f451c2a14f5..c2a7f84b609d 100644
--- a/drivers/gpu/drm/i915/intel_drv.h
+++ b/drivers/gpu/drm/i915/intel_drv.h
@@ -192,6 +192,7 @@ struct intel_crtc_config {
bool dither;
int pipe_bpp;
+ struct intel_link_m_n dp_m_n;
/* Used by SDVO (and if we ever fix it, HDMI). */
unsigned pixel_multiplier;
@@ -640,6 +641,10 @@ extern void intel_init_clock_gating(struct drm_device *dev);
extern void intel_write_eld(struct drm_encoder *encoder,
struct drm_display_mode *mode);
extern void intel_cpt_verify_modeset(struct drm_device *dev, int pipe);
+extern void intel_cpu_transcoder_set_m_n(struct intel_crtc *crtc,
+ struct intel_link_m_n *m_n);
+extern void intel_pch_transcoder_set_m_n(struct intel_crtc *crtc,
+ struct intel_link_m_n *m_n);
extern void intel_prepare_ddi(struct drm_device *dev);
extern void hsw_fdi_link_train(struct drm_crtc *crtc);
extern void intel_ddi_init(struct drm_device *dev, enum port port);
generated by cgit v1.2.3 (git 2.46.0) at 2025-07-28 17:19:54 +0000