Add rename the gpu busy percentage for consistency and
add the mem busy percentage documentation.
Reviewed-by: Evan Quan <evan.quan@amd.com>
Reviewed-by: Nirmoy Das <nirmoy.das@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Vega10 and previous asics use one interface, vega20 and newer
use another.
Reviewed-by: Evan Quan <evan.quan@amd.com>
Acked-by: Nirmoy Das <nirmoy.das@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Switch the function documentation to kerneldoc comments, and add
WARN_ON_ONCE asserts that the calling thread is a kernel thread and does
not have ->mm set (or has ->mm set in the case of unuse_mm).
Also give the functions a kthread_ prefix to better document the use case.
[hch@lst.de: fix a comment typo, cover the newly merged use_mm/unuse_mm caller in vfio]
Link: http://lkml.kernel.org/r/20200416053158.586887-3-hch@lst.de
[sfr@canb.auug.org.au: powerpc/vas: fix up for {un}use_mm() rename]
Link: http://lkml.kernel.org/r/20200422163935.5aa93ba5@canb.auug.org.au
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Tested-by: Jens Axboe <axboe@kernel.dk>
Reviewed-by: Jens Axboe <axboe@kernel.dk>
Acked-by: Felix Kuehling <Felix.Kuehling@amd.com>
Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> [usb]
Acked-by: Haren Myneni <haren@linux.ibm.com>
Cc: Alex Deucher <alexander.deucher@amd.com>
Cc: Al Viro <viro@zeniv.linux.org.uk>
Cc: Felipe Balbi <balbi@kernel.org>
Cc: Jason Wang <jasowang@redhat.com>
Cc: "Michael S. Tsirkin" <mst@redhat.com>
Cc: Zhenyu Wang <zhenyuw@linux.intel.com>
Cc: Zhi Wang <zhi.a.wang@intel.com>
Link: http://lkml.kernel.org/r/20200404094101.672954-6-hch@lst.de
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Patch series "improve use_mm / unuse_mm", v2.
This series improves the use_mm / unuse_mm interface by better documenting
the assumptions, and my taking the set_fs manipulations spread over the
callers into the core API.
This patch (of 3):
Use the proper API instead.
Link: http://lkml.kernel.org/r/20200404094101.672954-1-hch@lst.de
These helpers are only for use with kernel threads, and I will tie them
more into the kthread infrastructure going forward. Also move the
prototypes to kthread.h - mmu_context.h was a little weird to start with
as it otherwise contains very low-level MM bits.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Tested-by: Jens Axboe <axboe@kernel.dk>
Reviewed-by: Jens Axboe <axboe@kernel.dk>
Acked-by: Felix Kuehling <Felix.Kuehling@amd.com>
Cc: Alex Deucher <alexander.deucher@amd.com>
Cc: Al Viro <viro@zeniv.linux.org.uk>
Cc: Felipe Balbi <balbi@kernel.org>
Cc: Jason Wang <jasowang@redhat.com>
Cc: "Michael S. Tsirkin" <mst@redhat.com>
Cc: Zhenyu Wang <zhenyuw@linux.intel.com>
Cc: Zhi Wang <zhi.a.wang@intel.com>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Link: http://lkml.kernel.org/r/20200404094101.672954-1-hch@lst.de
Link: http://lkml.kernel.org/r/20200416053158.586887-1-hch@lst.de
Link: http://lkml.kernel.org/r/20200404094101.672954-5-hch@lst.de
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
i915:
- gvt: Fix one clang warning on debug only function
Use ARRAY_SIZE for coccicheck warn
- Use after free fix for display global state.
- Whitelisting context-local timestamp on Gen9
and two scheduler fixes with deps (Cc: stable)
- Removal of write flag from sysfs files where
ineffective
nouveau:
- HDMI/DP audio HDA fixes
- display hang fix for Volta/Turing
- GK20A regression fix.
amdgpu:
- Prevent hwmon accesses while GPU is in reset
- CTF interrupt fix
- Backlight fix for renoir
- Fix for display sync groups
- Display bandwidth validation workaround
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Merge tag 'drm-next-2020-06-08' of git://anongit.freedesktop.org/drm/drm
Pull drm fixes from Dave Airlie:
"These are the fixes from last week for the stuff merged in the merge
window. It got a bunch of nouveau fixes for HDA audio on some new
GPUs, some i915 and some amdpgu fixes.
i915:
- gvt: Fix one clang warning on debug only function
- Use ARRAY_SIZE for coccicheck warning
- Use after free fix for display global state.
- Whitelisting context-local timestamp on Gen9 and two scheduler
fixes with deps (Cc: stable)
- Removal of write flag from sysfs files where ineffective
nouveau:
- HDMI/DP audio HDA fixes
- display hang fix for Volta/Turing
- GK20A regression fix.
amdgpu:
- Prevent hwmon accesses while GPU is in reset
- CTF interrupt fix
- Backlight fix for renoir
- Fix for display sync groups
- Display bandwidth validation workaround"
* tag 'drm-next-2020-06-08' of git://anongit.freedesktop.org/drm/drm: (28 commits)
drm/nouveau/kms/nv50-: clear SW state of disabled windows harder
drm/nouveau: gr/gk20a: Use firmware version 0
drm/nouveau/disp/gm200-: detect and potentially disable HDA support on some SORs
drm/nouveau/disp/gp100: split SOR implementation from gm200
drm/nouveau/disp: modify OR allocation policy to account for HDA requirements
drm/nouveau/disp: split part of OR allocation logic into a function
drm/nouveau/disp: provide hint to OR allocation about HDA requirements
drm/amd/display: Revalidate bandwidth before commiting DC updates
drm/amdgpu/display: use blanked rather than plane state for sync groups
drm/i915/params: fix i915.fake_lmem_start module param sysfs permissions
drm/i915/params: don't expose inject_probe_failure in debugfs
drm/i915: Whitelist context-local timestamp in the gen9 cmdparser
drm/i915: Fix global state use-after-frees with a refcount
drm/i915: Check for awaits on still currently executing requests
drm/i915/gt: Do not schedule normal requests immediately along virtual
drm/i915: Reorder await_execution before await_request
drm/nouveau/kms/gt215-: fix race with audio driver runpm
drm/nouveau/disp/gm200-: fix NV_PDISP_SOR_HDMI2_CTRL(n) selection
Revert "drm/amd/display: disable dcn20 abm feature for bring up"
drm/amd/powerplay: ack the SMUToHost interrupt on receive V2
...
This series adds a selftest for hmm_range_fault() and several of the
DEVICE_PRIVATE migration related actions, and another simplification for
hmm_range_fault()'s API.
- Simplify hmm_range_fault() with a simpler return code, no
HMM_PFN_SPECIAL, and no customizable output PFN format
- Add a selftest for hmm_range_fault() and DEVICE_PRIVATE related
functionality
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Merge tag 'for-linus-hmm' of git://git.kernel.org/pub/scm/linux/kernel/git/rdma/rdma
Pull hmm updates from Jason Gunthorpe:
"This series adds a selftest for hmm_range_fault() and several of the
DEVICE_PRIVATE migration related actions, and another simplification
for hmm_range_fault()'s API.
- Simplify hmm_range_fault() with a simpler return code, no
HMM_PFN_SPECIAL, and no customizable output PFN format
- Add a selftest for hmm_range_fault() and DEVICE_PRIVATE related
functionality"
* tag 'for-linus-hmm' of git://git.kernel.org/pub/scm/linux/kernel/git/rdma/rdma:
MAINTAINERS: add HMM selftests
mm/hmm/test: add selftests for HMM
mm/hmm/test: add selftest driver for HMM
mm/hmm: remove the customizable pfn format from hmm_range_fault
mm/hmm: remove HMM_PFN_SPECIAL
drm/amdgpu: remove dead code after hmm_range_fault()
mm/hmm: make hmm_range_fault return 0 or -1
Return an error for sysfs and debugfs power interfaces during
gpu reset and suspend. Prevents access to the hw while it may
be in an unusable state.
v2: squash in fix to drop suspend check
Acked-by: Nirmoy Das <nirmoy.das@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
the origin design will use varible of "attr->states" to save node
supported states on current gpu device, but for multi gpu device, when
probe second gpu device, the driver will check attribute node states
from previous gpu device wthether to create attribute node.
it will cause other gpu device create attribute node faild.
1. add member attr_list into amdgpu_device to link supported device attribute node.
2. add new structure "struct amdgpu_device_attr_entry{}" to track device attribute state.
3. drop member "states" from amdgpu_device_attr.
v2:
1. move "attr_list" into amdgpu_pm and rename to "pm_attr_list".
2. refine create & remove device node functions parameter.
fix:
drm/amdgpu: optimize amdgpu device attribute code
Signed-off-by: Kevin Wang <kevin1.wang@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This fixes an intermittent bug where a root PD clear operation still in
progress could overwrite a PDE update done by the CPU, resulting in a
VM fault.
Fixes: 108b4d928c ("drm/amd/amdgpu: Update VM function pointer")
Reported-by: Jay Cornwall <Jay.Cornwall@amd.com>
Tested-by: Jay Cornwall <Jay.Cornwall@amd.com>
Signed-off-by: Felix Kuehling <Felix.Kuehling@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Add some APU flags to simplify handling of different APU
variants. It's easier to understand the special cases
if we use names flags rather than checking device ids and
silicon revisions.
v2: rebase on latest code
Acked-by: Evan Quan <evan.quan@amd.com>
Acked-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
[Problem description]
1. Boot up picasso platform, launches desktop, Don't do anything (APU enter into "gfxoff" state)
2. Remote login to platform using SSH, then type the command line:
sudo su -c "echo manual > /sys/class/drm/card0/device/power_dpm_force_performance_level"
sudo su -c "echo 2 > /sys/class/drm/card0/device/pp_dpm_sclk" (fix SCLK to 1400MHz)
3. Move the mouse around in Window
4. Phenomenon : The screen frozen
Tester will switch sclk level during glmark2 run time.
APU will enter "gfxoff" state intermittently during glmark2 run time.
The system got hanged if fix GFXCLK to 1400MHz when APU is in "gfxoff"
state.
[Debug]
1. Fix SCLK to X MHz
1400: screen frozen, screen black, then OS will reboot.
1300: screen frozen.
1200: screen frozen, screen black.
1100: screen frozen, screen black, then OS will reboot.
1000: screen frozen, screen black.
900: screen frozen, screen black, then OS will reboot.
800: Situation Nomal, issue disappear.
700: Situation Nomal, issue disappear.
2. SBIOS setting: AMD CBS --> SMU Debug Options -->SMU Debug --> "GFX DLDO Psm Margin Control":
50 : Situation Nomal, issue disappear.
45 : Situation Nomal, issue disappear.
40 : Situation Nomal, issue disappear.
35 : Situation Nomal, issue disappear.
30 : screen black.
25 : screen frozen, then blurred screen.
20 : screen frozen.
15 : screen black.
10 : screen frozen.
5 : screen frozen, then blurred screen.
3. Disable GFXOFF feature
Situation Nomal, issue disappear.
[Why]
Through a period of time debugging with Sys Eng team and SMU team, Sys
Eng team said this is voltage/frequency marginal issue not a F/W or H/W
bug. This experiment proves that default targetPsm [for f=1400MHz] is
not sufficient when GFXOFF is enabled on Picasso.
SMU team think it is an odd test conditions to force sclk="1400MHz" when
GPU is in "gfxoff" state，then wake up the GFX. SCLK should be in the
"lowest frequency" when gfxoff.
[How]
Disable gfxoff when setting manual mode.
Enable gfxoff when setting other mode(exiting manual mode) again.
By the way, from the user point of view, now that user switch to manual
mode and force SCLK Frequency, he don't want SCLK be controlled by
workload.It becomes meaningless to "switch to manual mode" if APU enter "gfxoff"
due to lack of workload at this point.
Tips: Same issue observed on Raven.
Signed-off-by: chen gong <curry.gong@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Fix typos that prevented them from showing up.
v2: switch other files in addition to pp_clk_voltage
Fixes: 4e01847c38 ("drm/amdgpu: optimize amdgpu device attribute code")
Bug: https://gitlab.freedesktop.org/drm/amd/-/issues/1150
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Acked-by: Evan Quan <evan.quan@amd.com>
We need to get the silicon revision id before we parse
the firmware in order to load the correct gpu info firmware
for raven2 variants.
Bug: https://gitlab.freedesktop.org/drm/amd/-/issues/1103
Acked-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Evan Quan <evan.quan@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Move it into the fw_info function since it's logically part
of the same functionality.
Acked-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Evan Quan <evan.quan@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Try to resize BAR0 to let CPU access all of VRAM on Navi. Syncs
code with previous gfx generations from commit d6895ad39f
("drm/amdgpu: resize VRAM BAR for CPU access v6").
Signed-off-by: Alan Swanson <reiver@improbability.net>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
It's not implemented yet so just drop it so the sysfs
pcie bw file returns an appropriate error instead of
garbage.
Reviewed-by: Yong Zhao <Yong.Zhao@amd.com>
Reviewed-By: Kent Russell <kent.russell@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
1. Initialize the counters to 0 in case the callback
fails to initialize them.
2. The counters don't exist on APUs so return an error
for them.
3. Return an error if the callback doesn't exist.
Reviewed-by: Yong Zhao <Yong.Zhao@amd.com>
Reviewed-By: Kent Russell <kent.russell@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
In free memory of gpu path, remove bo from validate_list to make sure
restore worker don't access the BO any more, then unregister bo MMU
interval notifier. Otherwise, the restore worker will crash in the
middle of validating BO user pages if MMU interval notifer is gone.
Signed-off-by: Philip Yang <Philip.Yang@amd.com>
Reviewed-by: Felix Kuehling <Felix.Kuehling@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This loop in the error handling code should start a "i - 1" and end at
"i == 0". Currently it starts a "i" and ends at "i == 1". The result
is that it removes one attribute that wasn't created yet, and leaks the
zeroeth attribute.
Fixes: 4e01847c38 ("drm/amdgpu: optimize amdgpu device attribute code")
Acked-by: Michael J. Ruhl <michael.j.ruhl@intel.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Kevin Wang <kevin1.wang@amd.com>
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Only ras supportted need to set MP1 state to prepare for unload before
reloading SMU FW.
Signed-off-by: Likun Gao <Likun.Gao@amd.com>
Reviewed-by: Evan Quan <evan.quan@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Under xgmi setup,some sysfs fail to create for the second time of kmd
driver loading. It's due to sysfs nodes are not removed appropriately
in the last unlod time.
Changes of this patch:
1. remove sysfs for dev_attr_xgmi_error
2. remove sysfs_link adev->dev->kobj with target name.
And it only needs to be removed once for a xgmi setup
3. remove sysfs_link hive->kobj with target name
In amdgpu_xgmi_remove_device:
1. amdgpu_xgmi_sysfs_rem_dev_info needs to be run per device
2. amdgpu_xgmi_sysfs_destroy needs to be run on the last node of
device.
v2: initialize array with memset
Signed-off-by: Jack Zhang <Jack.Zhang1@amd.com>
Reviewed-by: Hawking Zhang <Hawking.Zhang@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
SCRATCH2 is used to keep decode wptr as a workaround
which fix a hardware DPG decode wptr update bug for
vcn2.5 beforehand.
Signed-off-by: James Zhu <James.Zhu@amd.com>
Reviewed-by: Leo Liu <leo.liu@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Remove JPEG_ENC_MASK from clock ungating since MJPEG encoder
hasn't been support yet.
Signed-off-by: James Zhu <James.Zhu@amd.com>
Reviewed-by: Leo Liu <leo.liu@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
[Why]
At bringup we want to be able to disable various power features.
[How]
These features are already exposed as dc_debug_options and exercised
on other OSes. Create a new dc_debug_mask module parameter and expose
relevant bits, in particular
* DC_DISABLE_PIPE_SPLIT
* DC_DISABLE_STUTTER
* DC_DISABLE_DSC
* DC_DISABLE_CLOCK_GATING
Signed-off-by: Harry Wentland <harry.wentland@amd.com>
Reviewed-by: Nicholas Kazlauskas <nicholas.kazlauskas@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
the amdgpu device attribute node will be created accordding to sriov vf
mode at runtime.
cleanup unnecessary sriov check in attribute operation function.
Signed-off-by: Kevin Wang <kevin1.wang@amd.com>
Reviewed-by: Hawking Zhang <Hawking.Zhang@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
When this flag is set in the CS IB flags, it causes
a memory cache flush of the GFX.
v2:
Move new flag to drm_amdgpu_cs_chunk_ib.flags
Bump up UAPI version
Remove condition on job != null to emit mem_sync
Signed-off-by: Andrey Grodzovsky <andrey.grodzovsky@amd.com>
Reviewed-by: Luben Tuikov <luben.tuikov@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Compute IBs need this too.
v2: split out version bump
v3: squash in emit frame count fixes
Signed-off-by: Marek Olšák <marek.olsak@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Used to flush and invalidate various caches.
v2: Rename function hook
Signed-off-by: Andrey Grodzovsky <andrey.grodzovsky@amd.com>
Reviewed-by: Luben Tuikov <luben.tuikov@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
unified amdgpu device attribute node functions:
1. add some helper functions to create amdgpu device attribute node.
2. create device node according to device attr flags on different VF mode.
3. rename some functions name to adapt a new interface.
v2:
1. remove ATTR_STATE_DEAD, ATTR_STATE_ALIVE enum.
2. rename callback function perform to attr_update.
3. modify some variable names
Signed-off-by: Kevin Wang <kevin1.wang@amd.com>
Reviewed-by: Hawking Zhang <Hawking.Zhang@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
the swsmu or powerplay(hwmgr) need to handle task according to different VF mode,
this function to help query vf mode.
vf mode:
1. SRIOV_VF_MODE_BARE_METAL: the driver work on host OS (PF)
2. SRIOV_VF_MODE_ONE_VF : the driver work on guest OS with one VF
3. SRIOV_VF_MODE_MULTI_VF : the driver work on guest OS with multi VF
Signed-off-by: Kevin Wang <kevin1.wang@amd.com>
Reviewed-by: Hawking Zhang <Hawking.Zhang@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
When GPU got timeout, it would notify an interested part
of an opportunity to dump info before actual GPU reset.
A usermode app would open 'autodump' node under debugfs system
and poll() for readable/writable. When a GPU reset is due,
amdgpu would notify usermode app through wait_queue_head and give
it 10 minutes to dump info.
After usermode app has done its work, this 'autodump' node is closed.
On node closure, amdgpu gets to know the dump is done through
the completion that is triggered in release().
There is no write or read callback because necessary info can be
obtained through dmesg and umr. Messages back and forth between
usermode app and amdgpu are unnecessary.
v2: (1) changed 'registered' to 'app_listening'
(2) add a mutex in open() to prevent race condition
v3 (chk): grab the reset lock to avoid race in autodump_open,
rename debugfs file to amdgpu_autodump,
provide autodump_read as well,
style and code cleanups
v4: add 'bool app_listening' to differentiate situations, so that
the node can be reopened; also, there is no need to wait for
completion when no app is waiting for a dump.
v5: change 'bool app_listening' to 'enum amdgpu_autodump_state'
add 'app_state_mutex' for race conditions:
(1)Only 1 user can open this file node
(2)wait_dump() can only take effect after poll() executed.
(3)eliminated the race condition between release() and
wait_dump()
v6: removed 'enum amdgpu_autodump_state' and 'app_state_mutex'
removed state checking in amdgpu_debugfs_wait_dump
Improve on top of version 3 so that the node can be reopened.
v7: move reinit_completion into open() so that only one user
can open it.
v8: remove complete_all() from amdgpu_debugfs_wait_dump().
Signed-off-by: Jiange Zhao <Jiange.Zhao@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Disable XGMI link power down prior to issuing a XGMI RAS error
Reviewed-by: Hawking Zhang <Hawking.Zhang@amd.com>
Signed-off-by: John Clements <john.clements@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
The variable ret is being initializeed with a value that is never read
and it is being updated later with a new value. The initialization
is redundant and can be removed.
Addresses-Coverity: ("Unused value")
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
There is no need to use amdgpu_mm_wreg_mmio_rlc()
during initialization time because this interface
is only designed for debugfs case to access the
registers which are only permitted by RLCG during
run-time. Therefore, turn back rlcg write for gfx_v10.
If we not turn back it, it will raise amdgpu load failure.
[ 54.904333] amdgpu: SMU driver if version not matched
[ 54.904393] amdgpu: SMU is initialized successfully!
[ 54.905971] [drm] kiq ring mec 2 pipe 1 q 0
[ 55.115416] amdgpu 0000:00:06.0: [drm:amdgpu_ring_test_helper [amdgpu]] *ERROR* ring gfx_0.0.0 test failed (-110)
[ 55.118877] [drm:amdgpu_device_init [amdgpu]] *ERROR* hw_init of IP block <gfx_v10_0> failed -110
[ 55.126587] amdgpu 0000:00:06.0: amdgpu_device_ip_init failed
[ 55.133466] amdgpu 0000:00:06.0: Fatal error during GPU init
Signed-off-by: Yintian Tao <yttao@amd.com>
Acked-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
On my raven1 system (rev c6) with VBIOS 113-RAVEN-114 GFXOFF is
not stable (resulting in large block tiling noise in some applications).
Disabling GFXOFF via the quirk list fixes the problems for me.
Signed-off-by: Tom St Denis <tom.stdenis@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
Fix the following gcc warning:
drivers/gpu/drm/amd/amdgpu/gmc_v6_0.c:65:18: warning: ‘crtc_offsets’
defined but not used [-Wunused-const-variable=]
static const u32 crtc_offsets[6] =
^~~~~~~~~~~~
Reported-by: Hulk Robot <hulkci@huawei.com>
Signed-off-by: Jason Yan <yanaijie@huawei.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
On my raven1 system (rev c6) with VBIOS 113-RAVEN-114 GFXOFF is
not stable (resulting in large block tiling noise in some applications).
Disabling GFXOFF via the quirk list fixes the problems for me.
Signed-off-by: Tom St Denis <tom.stdenis@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Presumably the intent here was that hmm_range_fault() could put the data
into some HW specific format and thus avoid some work. However, nothing
actually does that, and it isn't clear how anything actually could do that
as hmm_range_fault() provides CPU addresses which must be DMA mapped.
Perhaps there is some special HW that does not need DMA mapping, but we
don't have any examples of this, and the theoretical performance win of
avoiding an extra scan over the pfns array doesn't seem worth the
complexity. Plus pfns needs to be scanned anyhow to sort out any
DEVICE_PRIVATE pages.
This version replaces the uint64_t with an usigned long containing a pfn
and fixed flags. On input flags is filled with the HMM_PFN_REQ_* values,
on successful output it is filled with HMM_PFN_* values, describing the
state of the pages.
amdgpu is simple to convert, it doesn't use snapshot and doesn't use
per-page flags.
nouveau uses only 16 hmm_pte entries at most (ie fits in a few cache
lines), and it sweeps over its pfns array a couple of times anyhow. It
also has a nasty call chain before it reaches the dma map and hardware
suggesting performance isn't important:
nouveau_svm_fault():
args.i.m.method = NVIF_VMM_V0_PFNMAP
nouveau_range_fault()
nvif_object_ioctl()
client->driver->ioctl()
struct nvif_driver nvif_driver_nvkm:
.ioctl = nvkm_client_ioctl
nvkm_ioctl()
nvkm_ioctl_path()
nvkm_ioctl_v0[type].func(..)
nvkm_ioctl_mthd()
nvkm_object_mthd()
struct nvkm_object_func nvkm_uvmm:
.mthd = nvkm_uvmm_mthd
nvkm_uvmm_mthd()
nvkm_uvmm_mthd_pfnmap()
nvkm_vmm_pfn_map()
nvkm_vmm_ptes_get_map()
func == gp100_vmm_pgt_pfn
struct nvkm_vmm_desc_func gp100_vmm_desc_spt:
.pfn = gp100_vmm_pgt_pfn
nvkm_vmm_iter()
REF_PTES == func == gp100_vmm_pgt_pfn()
dma_map_page()
Link: https://lore.kernel.org/r/5-v2-b4e84f444c7d+24f57-hmm_no_flags_jgg@mellanox.com
Acked-by: Felix Kuehling <Felix.Kuehling@amd.com>
Tested-by: Ralph Campbell <rcampbell@nvidia.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
This is just an alias for HMM_PFN_ERROR, nothing cares that the error was
because of a special page vs any other error case.
Link: https://lore.kernel.org/r/4-v2-b4e84f444c7d+24f57-hmm_no_flags_jgg@mellanox.com
Acked-by: Felix Kuehling <Felix.Kuehling@amd.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: John Hubbard <jhubbard@nvidia.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
Since amdgpu does not use the snapshot mode of hmm_range_fault() a
successful return already proves that all entries in the pfns are
HMM_PFN_VALID, there is no need to check the return result of
hmm_device_entry_to_page().
Link: https://lore.kernel.org/r/3-v2-b4e84f444c7d+24f57-hmm_no_flags_jgg@mellanox.com
Acked-by: Felix Kuehling <Felix.Kuehling@amd.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
