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Kent Russell fdd21e62b0 Revert "drm/amdgpu: use the BAR if possible in amdgpu_device_vram_access v2" 
This reverts commit c12b84d6e0.

The original patch causes a RAS event and subsequent kernel hard-hang
when running the KFDMemoryTest.PtraceAccessInvisibleVram on VG20 and
Arcturus

dmesg output at hang time:
[drm] RAS event of type ERREVENT_ATHUB_INTERRUPT detected!
amdgpu 0000:67:00.0: GPU reset begin!
Evicting PASID 0x8000 queues
Started evicting pasid 0x8000
qcm fence wait loop timeout expired
The cp might be in an unrecoverable state due to an unsuccessful queues preemption
Failed to evict process queues
Failed to suspend process 0x8000
Finished evicting pasid 0x8000
Started restoring pasid 0x8000
Finished restoring pasid 0x8000
[drm] UVD VCPU state may lost due to RAS ERREVENT_ATHUB_INTERRUPT
amdgpu: [powerplay] Failed to send message 0x26, response 0x0
amdgpu: [powerplay] Failed to set soft min gfxclk !
amdgpu: [powerplay] Failed to upload DPM Bootup Levels!
amdgpu: [powerplay] Failed to send message 0x7, response 0x0
amdgpu: [powerplay] [DisableAllSMUFeatures] Failed to disable all smu features!
amdgpu: [powerplay] [DisableDpmTasks] Failed to disable all smu features!
amdgpu: [powerplay] [PowerOffAsic] Failed to disable DPM!
[drm:amdgpu_device_ip_suspend_phase2 [amdgpu]] *ERROR* suspend of IP block <powerplay> failed -5

Signed-off-by: Kent Russell <kent.russell@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2020-04-22 18:11:46 -04:00
arch Linux 5.6 2020-03-31 15:15:47 +10:00
block block: Fix partition support for host aware zoned block devices 2020-03-12 07:54:39 -06:00
certs certs: Add wrapper function to check blacklisted binary hash 2019-11-12 12:25:50 +11:00
crypto Merge branch 'next-integrity' of git://git.kernel.org/pub/scm/linux/kernel/git/zohar/linux-integrity 2020-02-20 15:15:16 -08:00
Documentation drm/amdgpu: Add documentation for unique_id 2020-04-01 14:44:41 -04:00
drivers Revert "drm/amdgpu: use the BAR if possible in amdgpu_device_vram_access v2" 2020-04-22 18:11:46 -04:00
fs afs: Fix unpinned address list during probing 2020-03-26 16:04:29 -07:00
include Linux 5.6 2020-03-31 15:15:47 +10:00
init int128: fix __uint128_t compiler test in Kconfig 2020-03-12 07:43:03 +09:00
ipc Revert "ipc,sem: remove uneeded sem_undo_list lock usage in exit_sem()" 2020-02-21 11:22:15 -08:00
kernel Merge branch 'akpm' (patches from Andrew) 2020-03-29 10:40:31 -07:00
lib Merge branch 'linus' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6 2020-03-23 15:55:21 -07:00
LICENSES LICENSES: Rename other to deprecated 2019-05-03 06:34:32 -06:00
mm mm/sparse: fix kernel crash with pfn_section_valid check 2020-03-29 09:47:06 -07:00
net Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net 2020-03-28 18:55:15 -07:00
samples Kbuild updates for v5.6 (2nd) 2020-02-09 16:05:50 -08:00
scripts Devicetree fix for 5.6, take 4: 2020-03-27 11:02:52 -07:00
security Merge branch 'next-integrity' of git://git.kernel.org/pub/scm/linux/kernel/git/zohar/linux-integrity 2020-02-20 15:15:16 -08:00
sound ALSA: hda/realtek - Enable the headset of Acer N50-600 with ALC662 2020-03-17 18:06:19 +01:00
tools Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net 2020-03-25 13:58:05 -07:00
usr initramfs: restore default compression behavior 2020-03-17 09:50:37 +09:00
virt KVM/arm fixes for 5.6, take #1 2020-02-28 11:50:06 +01:00
.clang-format clang-format: Update with the latest for_each macro list 2020-03-06 21:50:05 +01:00
.cocciconfig
.get_maintainer.ignore Opt out of scripts/get_maintainer.pl 2019-05-16 10:53:40 -07:00
.gitattributes .gitattributes: use 'dts' diff driver for dts files 2019-12-04 19:44:11 -08:00
.gitignore selftest/lkdtm: Use local .gitignore 2020-03-02 08:39:39 -07:00
.mailmap mailmap: Update email address 2020-03-05 11:03:09 -08:00
COPYING COPYING: state that all contributions really are covered by this file 2020-02-10 13:32:20 -08:00
CREDITS MAINTAINERS: Hand MIPS over to Thomas 2020-02-24 22:43:18 -08:00
Kbuild kbuild: rename hostprogs-y/always to hostprogs/always-y 2020-02-04 01:53:07 +09:00
Kconfig docs: kbuild: convert docs to ReST and rename to *.rst 2019-06-14 14:21:21 -06:00
MAINTAINERS Linux 5.6 2020-03-31 15:15:47 +10:00
Makefile Linux 5.6 2020-03-29 15:25:41 -07:00
README Drop all 00-INDEX files from Documentation/ 2018-09-09 15:08:58 -06:00

README 

Linux kernel
============

There are several guides for kernel developers and users. These guides can
be rendered in a number of formats, like HTML and PDF. Please read
Documentation/admin-guide/README.rst first.

In order to build the documentation, use ``make htmldocs`` or
``make pdfdocs``.  The formatted documentation can also be read online at:

    https://www.kernel.org/doc/html/latest/

There are various text files in the Documentation/ subdirectory,
several of them using the Restructured Text markup notation.

Please read the Documentation/process/changes.rst file, as it contains the
requirements for building and running the kernel, and information about
the problems which may result by upgrading your kernel.