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authorKeith Packard <keithp@keithp.com>2009-07-13 08:53:17 +0200
committerEric Anholt <eric@anholt.net>2009-07-14 00:55:23 +0200
commit5e4d6fa72619aeea271d2ad704757717b06e291a (patch)
tree9e93a47ddaa5cfea9cb89e8cbd6961660cdfc912
parentdrm/i915: refactor error detection & collection (diff)
downloadlinux-5e4d6fa72619aeea271d2ad704757717b06e291a.tar.xz
linux-5e4d6fa72619aeea271d2ad704757717b06e291a.zip
drm/i915: Allow frame buffers up to 4096x4096 on 915/945 class hardware
The 915 and 945 scanout engines can handle frame buffers up to 4096 pixels wide. Pre-9xx hardware has an 8192 byte stride limit, and so we leave the existing 2048 max in place. I'm not sure why we limit the height to the same value; there's no intrinsic hardware limit in the scanout engine. Signed-off-by: Keith Packard <keithp@keithp.com> Signed-off-by: Eric Anholt <eric@anholt.net>
-rw-r--r--drivers/gpu/drm/i915/intel_display.c3
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c
index 3371cb0ba81b..984645e26a2d 100644
--- a/drivers/gpu/drm/i915/intel_display.c
+++ b/drivers/gpu/drm/i915/intel_display.c
@@ -3148,6 +3148,9 @@ void intel_modeset_init(struct drm_device *dev)
if (IS_I965G(dev)) {
dev->mode_config.max_width = 8192;
dev->mode_config.max_height = 8192;
+ } else if (IS_I9XX(dev)) {
+ dev->mode_config.max_width = 4096;
+ dev->mode_config.max_height = 4096;
} else {
dev->mode_config.max_width = 2048;
dev->mode_config.max_height = 2048;