From 12105ff585a03996be68184424b36d05b5aa0578 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Ville=20Syrj=C3=A4l=C3=A4?= <ville.syrjala@linux.intel.com>
Date: Wed, 23 Feb 2022 15:13:14 +0200
Subject: drm/i915: Use bigjoiner_pipes more
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Git-commit: 8b986e2a051c2910851d3661a8419721028d2f02
Patch-mainline: v5.19-rc1
References: jsc#PED-1166 jsc#PED-1168 jsc#PED-1170 jsc#PED-1218 jsc#PED-1220 jsc#PED-1222 jsc#PED-1223 jsc#PED-1225
Replace the hardcoded 2 pipe assumptions when we're massaging
pipe_mode and the pipe_src rect to be suitable for bigjoiner.
Instead we can just count the number of pipes in the bitmask.
v2: Introduce intel_bigjoiner_num_pipes()
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20220223131315.18016-13-ville.syrjala@linux.intel.com
Reviewed-by: Manasi Navare <manasi.d.navare@intel.com>
Acked-by: Patrik Jakobsson <pjakobsson@suse.de>
---
drivers/gpu/drm/i915/display/intel_display.c | 31 +++++++++++++-------
1 file changed, 20 insertions(+), 11 deletions(-)
diff --git a/drivers/gpu/drm/i915/display/intel_display.c b/drivers/gpu/drm/i915/display/intel_display.c
index 6d94a9c6eec2..7a11f2224662 100644
--- a/drivers/gpu/drm/i915/display/intel_display.c
+++ b/drivers/gpu/drm/i915/display/intel_display.c
@@ -369,6 +369,11 @@ bool intel_crtc_is_bigjoiner_master(const struct intel_crtc_state *crtc_state)
crtc->pipe == bigjoiner_master_pipe(crtc_state);
}
+static int intel_bigjoiner_num_pipes(const struct intel_crtc_state *crtc_state)
+{
+ return hweight8(crtc_state->bigjoiner_pipes);
+}
+
struct intel_crtc *intel_master_crtc(const struct intel_crtc_state *crtc_state)
{
struct drm_i915_private *i915 = to_i915(crtc_state->uapi.crtc->dev);
@@ -2719,16 +2724,18 @@ static void intel_crtc_compute_pixel_rate(struct intel_crtc_state *crtc_state)
static void intel_bigjoiner_adjust_timings(const struct intel_crtc_state *crtc_state,
struct drm_display_mode *mode)
{
- if (!crtc_state->bigjoiner_pipes)
+ int num_pipes = intel_bigjoiner_num_pipes(crtc_state);
+
+ if (num_pipes < 2)
return;
- mode->crtc_clock /= 2;
- mode->crtc_hdisplay /= 2;
- mode->crtc_hblank_start /= 2;
- mode->crtc_hblank_end /= 2;
- mode->crtc_hsync_start /= 2;
- mode->crtc_hsync_end /= 2;
- mode->crtc_htotal /= 2;
+ mode->crtc_clock /= num_pipes;
+ mode->crtc_hdisplay /= num_pipes;
+ mode->crtc_hblank_start /= num_pipes;
+ mode->crtc_hblank_end /= num_pipes;
+ mode->crtc_hsync_start /= num_pipes;
+ mode->crtc_hsync_end /= num_pipes;
+ mode->crtc_htotal /= num_pipes;
}
static void intel_splitter_adjust_timings(const struct intel_crtc_state *crtc_state,
@@ -2780,7 +2787,8 @@ static void intel_crtc_readout_derived_state(struct intel_crtc_state *crtc_state
/* Populate the "user" mode with full numbers */
drm_mode_copy(mode, pipe_mode);
intel_mode_from_crtc_timings(mode, mode);
- mode->hdisplay = drm_rect_width(&crtc_state->pipe_src) << !!crtc_state->bigjoiner_pipes;
+ mode->hdisplay = drm_rect_width(&crtc_state->pipe_src) *
+ (intel_bigjoiner_num_pipes(crtc_state) ?: 1);
mode->vdisplay = drm_rect_height(&crtc_state->pipe_src);
/* Derive per-pipe timings in case bigjoiner is used */
@@ -2800,16 +2808,17 @@ static void intel_encoder_get_config(struct intel_encoder *encoder,
static void intel_bigjoiner_compute_pipe_src(struct intel_crtc_state *crtc_state)
{
+ int num_pipes = intel_bigjoiner_num_pipes(crtc_state);
int width, height;
- if (!crtc_state->bigjoiner_pipes)
+ if (num_pipes < 2)
return;
width = drm_rect_width(&crtc_state->pipe_src);
height = drm_rect_height(&crtc_state->pipe_src);
drm_rect_init(&crtc_state->pipe_src, 0, 0,
- width / 2, height);
+ width / num_pipes, height);
}
static int intel_crtc_compute_pipe_src(struct intel_crtc_state *crtc_state)
--
2.38.1