78 lines
3.7 KiB
Diff
78 lines
3.7 KiB
Diff
From a8168153037f2cfb9739285b92896c0e24872518 Mon Sep 17 00:00:00 2001
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From: Alexey Sheplyakov <asheplyakov@altlinux.org>
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Date: Wed, 27 Nov 2019 20:50:58 +0400
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Subject: [PATCH] Don't crash X server if GPU acceleration is not available
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Commit d1d8e3c8d0a0a0394d395eba171460501745209b causes X server
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to fail on startup when GPU acceleration is not working (or is
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disabled). The reason is that `radeon_get_pixmap_bo` function
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gets called too early (before EXA has been initialized) and
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fails with an assert:
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#0 __GI_raise (sig=<optimized out>) at ../sysdeps/unix/sysv/linux/raise.c:50
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#1 0x76ab1c6c in __GI_abort () at abort.c:79
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#2 0x76ac0b64 in __assert_fail_base (fmt=0x76bfbce4 "%s%s%s:%u: %s%sAssertion `%s' failed.\n%n", assertion=0x7658c80c "key->initialized", file=<optimized out>, line=121,
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function=0x7658d040 <__PRETTY_FUNCTION__.10607> "dixGetPrivateAddr") at assert.c:92
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#3 0x76ac0c0c in __GI___assert_fail (assertion=0x7658c80c "key->initialized", file=0x7658c9d0 "../include/privates.h", line=121,
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function=0x7658d040 <__PRETTY_FUNCTION__.10607> "dixGetPrivateAddr") at assert.c:101
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#4 0x76579e6c in dixGetPrivateAddr (key=<optimized out>, key=<optimized out>, privates=<optimized out>) at ../include/privates.h:121
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#5 0x7657a954 in dixGetPrivateAddr (key=<optimized out>, key=<optimized out>, privates=<optimized out>) at exa.c:70
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#6 dixGetPrivate (key=<optimized out>, privates=<optimized out>) at ../include/privates.h:136
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#7 exaGetPixmapDriverPrivate (pPix=<optimized out>) at exa.c:68
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#8 0x7623d460 in radeon_get_pixmap_bo (pPix=0x71c1b8) at radeon.h:804
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#9 radeon_get_pixmap_handle (pixmap=0x71c1b8, handle=0x7fa22328) at radeon_bo_helper.c:357
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#10 0x76244458 in radeon_pixmap_get_fb (pix=0x71c1b8) at radeon.h:886
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#11 drmmode_set_mode_major (crtc=0x691860, mode=0x69191c, rotation=<optimized out>, x=<optimized out>, y=<optimized out>) at drmmode_display.c:918
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#12 0x762467e8 in drmmode_set_desired_modes (pScrn=0x67c678, drmmode=<optimized out>, set_hw=1) at drmmode_display.c:3128
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#13 0x0047bfa4 in MapWindow (client=0x669ec8, pWin=0x7206c0) at window.c:2722
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#14 MapWindow (pWin=0x7206c0, client=0x669ec8) at window.c:2665
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#15 0x00449650 in dix_main (argc=3, argv=0x7fa22604, envp=<optimized out>) at main.c:247
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#16 0x76ab2198 in __libc_start_main (main=0x42db10 <main>, argc=3, argv=0x7fa22604, init=<optimized out>, fini=0x606434 <__libc_csu_fini>, rtld_fini=0x77229930 <_dl_fini>,
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stack_end=0x7fa225e0) at libc-start.c:308
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#17 0x0042db80 in __start () at ../sysdeps/mips/start.S:110
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Don't call `exaGetPixmapDriverPrivate` if the acceleration (EXA) is not
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enabled [yet] to avoid the problem.
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Closes: https://gitlab.freedesktop.org/xorg/driver/xf86-video-ati/issues/188
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Closes: https://bugzilla.altlinux.org/show_bug.cgi?id=37539
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---
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src/radeon.h | 6 +++---
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1 file changed, 3 insertions(+), 3 deletions(-)
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diff --git a/src/radeon.h b/src/radeon.h
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index 2c913466..e4a2ba66 100644
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--- a/src/radeon.h
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+++ b/src/radeon.h
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@@ -790,8 +790,8 @@ static inline Bool radeon_set_pixmap_bo(PixmapPtr pPix, struct radeon_buffer *bo
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static inline struct radeon_buffer *radeon_get_pixmap_bo(PixmapPtr pPix)
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{
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-#ifdef USE_GLAMOR
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RADEONInfoPtr info = RADEONPTR(xf86ScreenToScrn(pPix->drawable.pScreen));
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+#ifdef USE_GLAMOR
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if (info->use_glamor) {
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struct radeon_pixmap *priv;
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@@ -799,7 +799,7 @@ static inline struct radeon_buffer *radeon_get_pixmap_bo(PixmapPtr pPix)
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return priv ? priv->bo : NULL;
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} else
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#endif
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- {
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+ if (info->accelOn) {
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struct radeon_exa_pixmap_priv *driver_priv;
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driver_priv = exaGetPixmapDriverPrivate(pPix);
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return driver_priv ? driver_priv->bo : NULL;
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@@ -896,7 +896,7 @@ radeon_pixmap_get_fb(PixmapPtr pix)
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handle);
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}
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- return *fb_ptr;
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+ return fb_ptr ? *fb_ptr : NULL;
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}
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--
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2.24.1
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