https://github.com/torvalds/linux
Revision 498e720b96379d8ee9c294950a01534a73defcf3 authored by Daniel J Blueman on 17 June 2011, 18:32:19 UTC, committed by Dave Airlie on 17 June 2011, 22:25:16 UTC
The failure appeared in dmesg as: [drm:i915_hangcheck_ring_idle] *ERROR* Hangcheck timer elapsed... blt ring idle [waiting on 35064155, at 35064155], missed IRQ? This works around that problem on by making the blitter command streamer write interrupt state to the Hardware Status Page when a MI_USER_INTERRUPT command is decoded, which appears to force the seqno out to memory before the interrupt happens. v1->v2: Moved to prior interrupt handler installation and RMW flags as per feedback. v2->v3: Removed RMW of flags (by anholt) Cc: stable@kernel.org Signed-off-by: Daniel J Blueman <daniel.blueman@gmail.com> Signed-off-by: Eric Anholt <eric@anholt.net> Tested-by: Chris Wilson <chris@chris-wilson.co.uk> [v1] Tested-by: Eric Anholt <eric@anholt.net> [v1,v3] (incidence of the bug with a testcase went from avg 2/1000 to 0/12651 in the latest test run (plus more for v1)) Tested-by: Kenneth Graunke <kenneth@whitecape.org> [v1] Tested-by: Robert Hooker <robert.hooker@canonical.com> [v1] Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=33394 Signed-off-by: Dave Airlie <airlied@redhat.com>
1 parent 95d17b7
Tip revision: 498e720b96379d8ee9c294950a01534a73defcf3 authored by Daniel J Blueman on 17 June 2011, 18:32:19 UTC
drm/i915: Fix gen6 (SNB) missed BLT ring interrupts.
drm/i915: Fix gen6 (SNB) missed BLT ring interrupts.
Tip revision: 498e720
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| 9p | ||
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| affs | ||
| afs | ||
| autofs4 | ||
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| logfs | ||
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| nfs_common | ||
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| sysfs | ||
| sysv | ||
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| udf | ||
| ufs | ||
| xfs | ||
| Kconfig | -rw-r--r-- | 5.8 KB |
| Kconfig.binfmt | -rw-r--r-- | 6.4 KB |
| Makefile | -rw-r--r-- | 4.0 KB |
| aio.c | -rw-r--r-- | 45.9 KB |
| anon_inodes.c | -rw-r--r-- | 6.3 KB |
| attr.c | -rw-r--r-- | 6.8 KB |
| bad_inode.c | -rw-r--r-- | 7.8 KB |
| binfmt_aout.c | -rw-r--r-- | 12.4 KB |
| binfmt_elf.c | -rw-r--r-- | 53.7 KB |
| binfmt_elf_fdpic.c | -rw-r--r-- | 48.7 KB |
| binfmt_em86.c | -rw-r--r-- | 2.8 KB |
| binfmt_flat.c | -rw-r--r-- | 27.0 KB |
| binfmt_misc.c | -rw-r--r-- | 15.2 KB |
| binfmt_script.c | -rw-r--r-- | 2.8 KB |
| binfmt_som.c | -rw-r--r-- | 7.4 KB |
| bio-integrity.c | -rw-r--r-- | 21.2 KB |
| bio.c | -rw-r--r-- | 39.5 KB |
| block_dev.c | -rw-r--r-- | 40.0 KB |
| buffer.c | -rw-r--r-- | 87.4 KB |
| char_dev.c | -rw-r--r-- | 13.8 KB |
| compat.c | -rw-r--r-- | 51.1 KB |
| compat_binfmt_elf.c | -rw-r--r-- | 3.5 KB |
| compat_ioctl.c | -rw-r--r-- | 45.8 KB |
| dcache.c | -rw-r--r-- | 77.5 KB |
| dcookies.c | -rw-r--r-- | 6.8 KB |
| direct-io.c | -rw-r--r-- | 35.1 KB |
| drop_caches.c | -rw-r--r-- | 1.5 KB |
| eventfd.c | -rw-r--r-- | 11.0 KB |
| eventpoll.c | -rw-r--r-- | 43.8 KB |
| exec.c | -rw-r--r-- | 51.1 KB |
| fcntl.c | -rw-r--r-- | 18.7 KB |
| fhandle.c | -rw-r--r-- | 6.5 KB |
| fifo.c | -rw-r--r-- | 3.2 KB |
| file.c | -rw-r--r-- | 12.0 KB |
| file_table.c | -rw-r--r-- | 13.2 KB |
| filesystems.c | -rw-r--r-- | 6.4 KB |
| fs-writeback.c | -rw-r--r-- | 35.3 KB |
| fs_struct.c | -rw-r--r-- | 3.9 KB |
| generic_acl.c | -rw-r--r-- | 4.7 KB |
| inode.c | -rw-r--r-- | 43.1 KB |
| internal.h | -rw-r--r-- | 3.4 KB |
| ioctl.c | -rw-r--r-- | 15.7 KB |
| ioprio.c | -rw-r--r-- | 5.0 KB |
| libfs.c | -rw-r--r-- | 25.3 KB |
| locks.c | -rw-r--r-- | 58.3 KB |
| mbcache.c | -rw-r--r-- | 16.4 KB |
| mpage.c | -rw-r--r-- | 20.0 KB |
| namei.c | -rw-r--r-- | 81.4 KB |
| namespace.c | -rw-r--r-- | 65.0 KB |
| nfsctl.c | -rw-r--r-- | 2.1 KB |
| no-block.c | -rw-r--r-- | 688 bytes |
| open.c | -rw-r--r-- | 26.7 KB |
| pipe.c | -rw-r--r-- | 28.4 KB |
| pnode.c | -rw-r--r-- | 9.3 KB |
| pnode.h | -rw-r--r-- | 1.1 KB |
| posix_acl.c | -rw-r--r-- | 8.6 KB |
| read_write.c | -rw-r--r-- | 20.8 KB |
| read_write.h | -rw-r--r-- | 542 bytes |
| readdir.c | -rw-r--r-- | 6.9 KB |
| select.c | -rw-r--r-- | 24.2 KB |
| seq_file.c | -rw-r--r-- | 17.8 KB |
| signalfd.c | -rw-r--r-- | 7.5 KB |
| splice.c | -rw-r--r-- | 46.3 KB |
| stack.c | -rw-r--r-- | 2.7 KB |
| stat.c | -rw-r--r-- | 10.6 KB |
| statfs.c | -rw-r--r-- | 5.0 KB |
| super.c | -rw-r--r-- | 24.3 KB |
| sync.c | -rw-r--r-- | 10.2 KB |
| timerfd.c | -rw-r--r-- | 8.4 KB |
| utimes.c | -rw-r--r-- | 5.7 KB |
| xattr.c | -rw-r--r-- | 15.8 KB |
| xattr_acl.c | -rw-r--r-- | 2.3 KB |
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