linux-kernel - [PATCH] drm/i915: Increase max texture to 16k for gen9+

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Date:   Thu,  7 Dec 2017 17:26:00 +0800
From:   Alex Tu <alex.tu@...onical.com>
To:     unlisted-recipients:; (no To-header on input)
Cc:     Alex Tu <alex.tu@...onical.com>,
        Jani Nikula <jani.nikula@...ux.intel.com>,
        Joonas Lahtinen <joonas.lahtinen@...ux.intel.com>,
        Rodrigo Vivi <rodrigo.vivi@...el.com>,
        David Airlie <airlied@...ux.ie>,
        intel-gfx@...ts.freedesktop.org, dri-devel@...ts.freedesktop.org,
        linux-kernel@...r.kernel.org
Subject: [PATCH] drm/i915: Increase max texture to 16k for gen9+

Rrefer to another patch [1] on mesa to extend width/height to 16384.
For issue :
 - https://bugs.freedesktop.org/show_bug.cgi?id=102508
 - LP: #1714178 Triple monitor display failed with Dell Dock (HiDPI)

[1] https://patchwork.freedesktop.org/patch/124918/

Signed-off-by: Alex Tu <alex.tu@...onical.com>
---
 drivers/gpu/drm/i915/intel_display.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c
index 47a2f6acee50..556fa57b18b8 100644
--- a/drivers/gpu/drm/i915/intel_display.c
+++ b/drivers/gpu/drm/i915/intel_display.c
@@ -13905,7 +13905,7 @@ u32 intel_fb_pitch_limit(struct drm_i915_private *dev_priv,
 		/* "The stride in bytes must not exceed the of the size of 8K
 		 *  pixels and 32K bytes."
 		 */
-		return min(8192 * cpp, 32768);
+		return min(16384 * cpp, 65536);
 	} else if (gen >= 5 && !HAS_GMCH_DISPLAY(dev_priv)) {
 		return 32*1024;
 	} else if (gen >= 4) {
@@ -14604,8 +14604,8 @@ int intel_modeset_init(struct drm_device *dev)
 		dev->mode_config.max_width = 4096;
 		dev->mode_config.max_height = 4096;
 	} else {
-		dev->mode_config.max_width = 8192;
-		dev->mode_config.max_height = 8192;
+		dev->mode_config.max_width = 16384;
+		dev->mode_config.max_height = 16384;
 	}
 
 	if (IS_I845G(dev_priv) || IS_I865G(dev_priv)) {
-- 
2.11.0