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From: Mahesh Kumar <mahesh1.kumar@intel.com>
To: intel-gfx@lists.freedesktop.org
Cc: paulo.r.zanoni@intel.com, maarten.lankhorst@intel.com
Subject: [PATCH v7 1/8] drm/i915/skl: Add variables to check x_tile and y_tile
Date: Thu,  1 Dec 2016 21:19:33 +0530	[thread overview]
Message-ID: <20161201154940.24446-2-mahesh1.kumar@intel.com> (raw)
In-Reply-To: <20161201154940.24446-1-mahesh1.kumar@intel.com>

This patch adds variable to check for X_tiled & y_tiled planes, instead
of always checking against framebuffer-modifiers.

Changes:
 - Created separate patch as per Paulo's comment
 - Added x_tiled variable as well
Changes since V2:
 - Incorporate Paulo's comments
 - Rebase

Signed-off-by: Mahesh Kumar <mahesh1.kumar@intel.com>
Reviewed-by: Paulo Zanoni <paulo.r.zanoni@intel.com>
---
 drivers/gpu/drm/i915/intel_pm.c | 22 ++++++++++++----------
 1 file changed, 12 insertions(+), 10 deletions(-)

diff --git a/drivers/gpu/drm/i915/intel_pm.c b/drivers/gpu/drm/i915/intel_pm.c
index 29b6653..a467ffe 100644
--- a/drivers/gpu/drm/i915/intel_pm.c
+++ b/drivers/gpu/drm/i915/intel_pm.c
@@ -3579,13 +3579,18 @@ static int skl_compute_plane_wm(const struct drm_i915_private *dev_priv,
 	struct intel_atomic_state *state =
 		to_intel_atomic_state(cstate->base.state);
 	bool apply_memory_bw_wa = skl_needs_memory_bw_wa(state);
+	bool y_tiled, x_tiled;
 
 	if (latency == 0 || !cstate->base.active || !intel_pstate->base.visible) {
 		*enabled = false;
 		return 0;
 	}
 
-	if (apply_memory_bw_wa && fb->modifier == I915_FORMAT_MOD_X_TILED)
+	y_tiled = fb->modifier == I915_FORMAT_MOD_Y_TILED ||
+				fb->modifier == I915_FORMAT_MOD_Yf_TILED;
+	x_tiled = fb->modifier == I915_FORMAT_MOD_X_TILED;
+
+	if (apply_memory_bw_wa && x_tiled)
 		latency += 15;
 
 	width = drm_rect_width(&intel_pstate->base.src) >> 16;
@@ -3624,16 +3629,15 @@ static int skl_compute_plane_wm(const struct drm_i915_private *dev_priv,
 		y_min_scanlines *= 2;
 
 	plane_bytes_per_line = width * cpp;
-	if (fb->modifier == I915_FORMAT_MOD_Y_TILED ||
-	    fb->modifier == I915_FORMAT_MOD_Yf_TILED) {
+	if (y_tiled) {
 		plane_blocks_per_line =
 		      DIV_ROUND_UP(plane_bytes_per_line * y_min_scanlines, 512);
 		plane_blocks_per_line /= y_min_scanlines;
-	} else if (fb->modifier == DRM_FORMAT_MOD_NONE) {
+	} else if (x_tiled) {
+		plane_blocks_per_line = DIV_ROUND_UP(plane_bytes_per_line, 512);
+	} else {
 		plane_blocks_per_line = DIV_ROUND_UP(plane_bytes_per_line, 512)
 					+ 1;
-	} else {
-		plane_blocks_per_line = DIV_ROUND_UP(plane_bytes_per_line, 512);
 	}
 
 	method1 = skl_wm_method1(plane_pixel_rate, cpp, latency);
@@ -3644,8 +3648,7 @@ static int skl_compute_plane_wm(const struct drm_i915_private *dev_priv,
 
 	y_tile_minimum = plane_blocks_per_line * y_min_scanlines;
 
-	if (fb->modifier == I915_FORMAT_MOD_Y_TILED ||
-	    fb->modifier == I915_FORMAT_MOD_Yf_TILED) {
+	if (y_tiled) {
 		selected_result = max(method2, y_tile_minimum);
 	} else {
 		if ((cpp * cstate->base.adjusted_mode.crtc_htotal / 512 < 1) &&
@@ -3661,8 +3664,7 @@ static int skl_compute_plane_wm(const struct drm_i915_private *dev_priv,
 	res_lines = DIV_ROUND_UP(selected_result, plane_blocks_per_line);
 
 	if (level >= 1 && level <= 7) {
-		if (fb->modifier == I915_FORMAT_MOD_Y_TILED ||
-		    fb->modifier == I915_FORMAT_MOD_Yf_TILED) {
+		if (y_tiled) {
 			res_blocks += y_tile_minimum;
 			res_lines += y_min_scanlines;
 		} else {
-- 
2.10.1

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  reply	other threads:[~2016-12-01 15:48 UTC|newest]

Thread overview: 18+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2016-12-01 15:49 [PATCH v7 0/8] GEN-9 Arbitrated Bandwidth WM WA's & IPC Mahesh Kumar
2016-12-01 15:49 ` Mahesh Kumar [this message]
2016-12-01 15:49 ` [PATCH v7 2/8] drm/i915/bxt: IPC WA for Broxton Mahesh Kumar
2016-12-01 15:49 ` [PATCH v7 3/8] drm/i915/kbl: IPC workaround for kabylake Mahesh Kumar
2016-12-01 15:49 ` [PATCH v7 4/8] drm/i915/bxt: Enable IPC support Mahesh Kumar
2016-12-01 15:49 ` [PATCH v7 5/8] drm/i915/skl+: change WM calc to fixed point 16.16 Mahesh Kumar
2016-12-01 15:49 ` [PATCH v7 6/8] drm/i915: Add intel_atomic_get_existing_crtc_state function Mahesh Kumar
2016-12-01 15:49 ` [PATCH v7 7/8] drm/i915: Decode system memory bandwidth Mahesh Kumar
2016-12-08 23:55   ` Paulo Zanoni
2017-02-15 15:00     ` Mahesh Kumar
2016-12-01 15:49 ` [PATCH v7 8/8] drm/i915/gen9: WM memory bandwidth related workaround Mahesh Kumar
2016-12-15 17:07   ` Paulo Zanoni
2017-02-15 15:00     ` Mahesh Kumar
2016-12-01 16:15 ` ✓ Fi.CI.BAT: success for GEN-9 Arbitrated Bandwidth WM WA's & IPC (rev3) Patchwork
2016-12-07 19:35 ` [PATCH v7 0/8] GEN-9 Arbitrated Bandwidth WM WA's & IPC Paulo Zanoni
2016-12-08 16:00   ` Daniel Vetter
2016-12-08 16:12     ` Zanoni, Paulo R
2016-12-08 16:18       ` Daniel Vetter

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