AuxXxilium/linux_dsm_epyc7002
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linux_dsm_epyc7002/include
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Chris Wilson e22d8e3c69 drm/i915: Treat WC a separate cache domain 
When discussing a new WC mmap, we based the interface upon the
assumption that GTT was fully coherent. How naive! Commits 3b5724d702
("drm/i915: Wait for writes through the GTT to land before reading
back") and ed4596ea99 ("drm/i915/guc: WA to address the Ringbuffer
coherency issue") demonstrate that writes through the GTT are indeed
delayed and may be overtaken by direct WC access. To be safe, if
userspace is mixing WC mmaps with other potential GTT access (pwrite,
GTT mmaps) it should use set_domain(WC).

Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=96563
Testcase: igt/gem_pwrite/small-gtt*
Testcase: igt/drv_selftest/coherency
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Reviewed-by: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/20170412110111.26626-2-chris@chris-wilson.co.uk
2017-04-12 12:35:17 +01:00
..
acpi
asm-generic vmlinux.lds: add missing VMLINUX_SYMBOL macros 2017-04-08 00:47:48 -07:00
clocksource
crypto net: Work around lockdep limitation in sockets that use sockets 2017-03-09 18:23:27 -08:00
drm Merge tag 'drm-misc-next-2017-04-07' of git://anongit.freedesktop.org/git/drm-misc into drm-next 2017-04-11 07:41:10 +10:00
dt-bindings scripts/spelling.txt: add "overide" pattern and fix typo instances 2017-03-09 17:01:09 -08:00
keys KEYS: Differentiate uses of rcu_dereference_key() and user_key_payload() 2017-03-02 10:09:00 +11:00
kvm KVM: arm64: Ensure LRs are clear when they should be 2017-04-04 14:33:58 +02:00
linux Linux 4.11-rc6 2017-04-11 07:40:42 +10:00
math-emu
media media fixes for v4.11-rc2 2017-03-09 15:50:56 -08:00
memory
misc
net sctp: get sock from transport in sctp_transport_update_pmtu 2017-04-05 07:20:06 -07:00
pcmcia
ras
rdma IB/core: Restore I/O MMU, s390 and powerpc support 2017-03-24 21:51:16 -04:00
rxrpc
scsi scsi: mpt3sas: Avoid sleeping in interrupt context 2017-03-01 21:52:13 -05:00
soc
sound sched/headers: Prepare to remove spurious <linux/sched.h> inclusion dependencies 2017-03-02 08:42:41 +01:00
target target: fix ALUA transition timeout handling 2017-03-18 14:47:28 -07:00
trace There was some breakage with the changes for jump labels in the 4.11 merge 2017-03-07 09:37:28 -08:00
uapi drm/i915: Treat WC a separate cache domain 2017-04-12 12:35:17 +01:00
video Linux 4.11-rc4 2017-03-28 17:34:19 +10:00
xen Merge branch 'stable/for-linus-4.11' of git://git.kernel.org/pub/scm/linux/kernel/git/konrad/swiotlb 2017-03-07 10:23:17 -08:00
Kbuild