05e50be4f8
Note that those drivers are barely maintained and might disappear in the futur PR: 216281 Submitted by: matthew@reztek.cz
37 lines
1.2 KiB
Text
37 lines
1.2 KiB
Text
From 23da6073369ef6a99d1789de967e57359d1fe3b0 Mon Sep 17 00:00:00 2001
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From: Stefan Dirsch <sndirsch@suse.de>
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Date: Tue, 26 Apr 2016 16:26:49 +0200
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Subject: Disable "acceleration" under qemu
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Disable "acceleration" under qemu, since taking the hypercall trap
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is really quite expensive and you're better off doing noaccel. Patch
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is based on the one by "Adam Jackson" <ajax@redhat.com>
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http://pkgs.fedoraproject.org/cgit/rpms/xorg-x11-drv-cirrus.git/tree/cirrus-1.2.0-qemu.patch?id=daccd1c8174623500eddfa297d8ea76a86d3c5d9
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Reviewed-by: Adam Jackson <ajax@redhat.com>
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diff --git a/src/alp_driver.c b/src/alp_driver.c
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index bd5e52f..ba55247 100644
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--- src/alp_driver.c
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+++ src/alp_driver.c
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@@ -774,6 +774,16 @@ AlpPreInit(ScrnInfoPtr pScrn, int flags)
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else
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xf86SetDDCproperties(pScrn,xf86PrintEDID(
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xf86DoEDID_DDC2(XF86_SCRN_ARG(pScrn),pCir->I2CPtr1)));
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+
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+#ifdef XSERVER_LIBPCIACCESS
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+ #ifndef PCI_CHIP_QEMU
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+ #define PCI_CHIP_QEMU 0x1af4
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+ #endif
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+ if (!pScrn->monitor->DDC &&
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+ ((pCir->PciInfo->subvendor_id & 0xffff) == PCI_CHIP_QEMU)) {
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+ pCir->NoAccel = TRUE;
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+ }
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+#endif
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/* Probe the possible LCD display */
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AlpProbeLCD(pScrn);
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--
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cgit v0.10.2
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