Commit Graph

669 Commits

Author SHA1 Message Date
Rex Zhu
3c79684396 drm/amd/pp: Fix set wrong temperature range on smu7
Fix the issue thermal irq was always triggered
as GPU under temperature range detected

The low temp in default thermal policy
was set to -273. so need to use int type for the low temp.

Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Rex Zhu <Rex.Zhu@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2018-03-22 14:43:01 -05:00
Rex Zhu
3296c4ae97 drm/amd/pp: Add smu irq handlers in sw_init instand of hw_init
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Rex Zhu <Rex.Zhu@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2018-03-21 14:36:59 -05:00
Rex Zhu
4d2003721c drm/amd/pp: Refine register_thermal_interrupt function
v2: add Vega12 support

1. delete useless argument in function register_thermal_interrupt
2. rename function name register_thermal_interrupt to register_irq_handlers

Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Rex Zhu <Rex.Zhu@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2018-03-21 14:36:58 -05:00
Rex Zhu
160b8e7593 drm/amdgpu: Remove wrapper layer of cgs irq handling
v2: add Vega12 support

1. remove struct cgs_os_ops
2. delete cgs_linux.h
3. refine the irq code for vega10, can fix set pp table
   failed issue.
4. add common smu irq process function

Acked-by: Christian König <christian.koenig@amd.com>
Acked-by: Junwei Zhang <Jerry.Zhang@amd.com>
Signed-off-by: Rex Zhu <Rex.Zhu@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2018-03-21 14:36:58 -05:00
Kenneth Feng
7436854ebd drm/amd/powerplay: Return per DPM level clock
Add change to return per DPM level clock in DAL interface

Signed-off-by: Kenneth Feng <kenneth.feng@amd.com>
Reviewed-by: Evan Quan <evan.quan@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2018-03-21 14:36:58 -05:00
Kenneth Feng
7f3f106e44 drm/amd/powerplay: Remove the SOC floor voltage setting
Remove W/A carried over from VG10 to set VDDSOC Floor Voltage
prior to enabling DPM since the VBIOS covers the floor voltage
setting now

Signed-off-by: Kenneth Feng <kenneth.feng@amd.com>
Reviewed-by: Evan Quan <evan.quan@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2018-03-21 14:36:57 -05:00
Evan Quan
2cac05dee6 drm/amd/powerplay: add the hw manager for vega12 (v4)
handles the driver power state setup

v2: squash in the following:
- handle negative temperature ranges
- add vega12 thermal ranges
- use ffs/fls
- remove ACG code
- resend NumOfDisplays message
- correct max dpm levels
- remove power containment settings
- fix warnings
- add sensors interface
- delete unused overdrive arbiter
- drop get_temperature callback
- smu table cleanup
- atomfirmware smu dpm table updates
v3: rebase
v4: rebase

Acked-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Evan Quan <evan.quan@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2018-03-21 14:36:56 -05:00
Evan Quan
d33edb6428 drm/amd/powerplay: add new pp_psm infrastructure for vega12 (v2)
New psm infrastructure for vega12.

v2: rebase (Alex)

Acked-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Evan Quan <evan.quan@amd.com>
Acked-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2018-03-21 14:36:55 -05:00
Evan Quan
3503d588e7 drm/amd/powerplay: update ppatomfwctl (v2)
Add new get_smc_dpm_information api to fetch the smu dpm
info from the vbios.

v2: deal with updated table format.

Acked-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Evan Quan <evan.quan@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2018-03-21 14:36:55 -05:00
Evan Quan
c042c9b434 drm/amd/powerplay: add vega12_pptable.h
Defines the power table format in the vbios.

Acked-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Evan Quan <evan.quan@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2018-03-21 14:36:55 -05:00
Evan Quan
80be32b58e drm/amd/powerplay: add vega12_inc.h
Used for the powerplay implementation.

Acked-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Evan Quan <evan.quan@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2018-03-21 14:36:53 -05:00
Rex Zhu
690dc62662 drm/amd/pp: Remove unneeded void * casts for Vega10
Removes unneeded void * casts for the following pointers:
hwmgr->backend
hwmgr->smu_backend

Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Reviewed-by: Evan Quan <evan.quan@amd.com>
Signed-off-by: Rex Zhu <Rex.Zhu@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2018-03-19 13:38:31 -05:00
Rex Zhu
2538090cb6 drm/amd/pp: Delete get_xclk function in powerplay (v2)
use asic's callback function get_xclk in amdgpu

v2: squash in removal of leftover debug info
(drm/amd/pp: Delete debug info in smu7_hwmgr.c) (Rex)

Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Reviewed-by: Evan Quan <evan.quan@amd.com>
Signed-off-by: Rex Zhu <Rex.Zhu@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2018-03-19 13:38:31 -05:00
Rex Zhu
c7d30b40a2 drm/amd/pp: Clean up header file for Vega10
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Reviewed-by: Evan Quan <evan.quan@amd.com>
Signed-off-by: Rex Zhu <Rex.Zhu@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2018-03-19 13:35:37 -05:00
Rex Zhu
3f9ca14a1d drm/amd/pp: Move functions to smu backend table for vega10
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Reviewed-by: Evan Quan <evan.quan@amd.com>
Signed-off-by: Rex Zhu <Rex.Zhu@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2018-03-19 13:35:30 -05:00
Rex Zhu
34e40f6338 drm/amd/pp: Rename file name cz_* to smu8_*
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Reviewed-by: Evan Quan <evan.quan@amd.com>
Signed-off-by: Rex Zhu <Rex.Zhu@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2018-03-15 09:58:56 -05:00
Rex Zhu
47ce4a9f84 drm/amd/pp: Replace function/struct name cz_* with smu8_*
hw ip smu8 was used on CZ/ST,
so use smu8 as the prefix of the function/struct name in powerplay.

Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Reviewed-by: Evan Quan <evan.quan@amd.com>
Signed-off-by: Rex Zhu <Rex.Zhu@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2018-03-15 09:58:47 -05:00
Rex Zhu
ce1ace35b7 drm/amd/pp: Remove unneeded void * casts in cz_hwmgr.c/cz_smumgr.c
Removes unneeded void * casts for the following pointers:
hwmgr->backend
hwmgr->smu_backend

Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Reviewed-by: Evan Quan <evan.quan@amd.com>
Signed-off-by: Rex Zhu <Rex.Zhu@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2018-03-15 09:58:37 -05:00
Rex Zhu
2bfc270cbf drm/amd/pp: Mv cz uvd/vce pg/dpm functions to cz_hwmgr.c
1. delete cz_clockpowergating.c/.h files
2. mark uvd/vce dpm/pg functions static

Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Reviewed-by: Evan Quan <evan.quan@amd.com>
Signed-off-by: Rex Zhu <Rex.Zhu@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2018-03-15 09:58:24 -05:00
Rex Zhu
bcd8377b6f drm/amd/pp: Remove dead header file pp_asicblocks.h
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Reviewed-by: Evan Quan <evan.quan@amd.com>
Signed-off-by: Rex Zhu <Rex.Zhu@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2018-03-15 09:58:16 -05:00
Rex Zhu
015aae53d0 drm/amd/pp: Delete dead code on cz_clockpowergating.c
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Reviewed-by: Evan Quan <evan.quan@amd.com>
Signed-off-by: Rex Zhu <Rex.Zhu@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2018-03-15 09:58:08 -05:00
Rex Zhu
b905090d2b drm/amdgpu: Remove wrapper layer of smu ip functions
1. delete amdgpu_powerplay.c used for wrapping smu ip functions
2. delete struct pp_instance,
3. make struct hwmgr as the smu hw handle.

Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Reviewed-by: Evan Quan <evan.quan@amd.com>
Signed-off-by: Rex Zhu <Rex.Zhu@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2018-03-15 09:57:50 -05:00
Rex Zhu
8e68627958 drm/amd/pp: Move helper functions to smu_help.c
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Reviewed-by: Evan Quan <evan.quan@amd.com>
Signed-off-by: Rex Zhu <Rex.Zhu@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2018-03-15 09:57:21 -05:00
Rex Zhu
c425688520 drm/amd/pp: Replace rv_* with smu10_*
Powerplay is for the hw ip smu, for RV, smu10 is used,
so use smu10 as the prefix of the files name/function name.

Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Rex Zhu <Rex.Zhu@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2018-03-15 09:57:12 -05:00
Rex Zhu
0d8a81d926 drm/amd/pp: Add rv_copy_table_from/to_smc to smu backend function table
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Rex Zhu <Rex.Zhu@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2018-03-15 09:56:53 -05:00
Rex Zhu
88c1a70d58 drm/amd/pp: Add rv_read_arg_from_smc to smu backend function table
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Rex Zhu <Rex.Zhu@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2018-03-15 09:56:29 -05:00
Rex Zhu
52911e0356 drm/amd/pp: Remove meanless return value check in RV
In send_message_to_smu helper functions,
Print out the error code for debug if smu failed to response.

The helper functions always return true, so no need to
check their return value.

Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Rex Zhu <Rex.Zhu@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2018-03-15 09:56:21 -05:00
Rex Zhu
116af45059 drm/amd/pp: Simplified the avfs btc state on smu7
AVFS feature support/not support is enough to driver.

so remove the complex define of the avfs btc state.

Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Rex Zhu <Rex.Zhu@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2018-03-15 09:55:38 -05:00
Oak Zeng
3760f76cbe drm/amdgpu: Move IH clientid defs to separate file
This is preparation for sharing client ID definitions
between amdgpu and amdkfd

Signed-off-by: Oak Zeng <Oak.Zeng@amd.com>
Reviewed-by: Chunming Zhou <david1.zhou@amd.com>
Acked-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2018-03-14 15:16:35 -05:00
Dave Airlie
62ccb65339 drm/amd/pp: fix missing CONFIG_ACPI.
This was stopping me building on ARM after last pull.

Signed-off-by: Dave Airlie <airlied@redhat.com>
2018-03-14 10:54:55 +10:00
Rex Zhu
37a94791a0 drm/amd/pp: Add #ifdef checks for CONFIG_ACPI
Fix compiling error when CONFIG_ACPI not enabled.

Change-Id: I5f901adbc799c10b30e5ea79f8f44760e749fae1
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Rex Zhu <Rex.Zhu@amd.com>
2018-03-07 16:10:11 -05:00
Rex Zhu
807f93ac6a drm/amd/pp: Remove cgs wrapper function for temperature update
Reviewed-by: Alex Deucher <alexdeucher@amd.com>
Acked-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Rex Zhu <Rex.Zhu@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2018-03-07 16:10:09 -05:00
Rex Zhu
052fe96d93 drm/amd/pp: Add auto power profilng switch based on workloads (v2)
Add power profiling mode dynamic switch based on the workloads.
Currently, support Cumpute, VR, Video, 3D,power saving with Cumpute
have highest prority, power saving have lowest prority.

in manual dpm mode, driver will stop auto switch, just save the client's
requests. user can set power profiling mode through sysfs.

when exit manual dpm mode, driver will response the client's requests.
switch based on the client's prority.

v2: squash in fixes from Rex

Reviewed-by: Evan Quan <evan.quan@amd.com>
Signed-off-by: Rex Zhu <Rex.Zhu@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2018-03-07 16:10:09 -05:00
Rex Zhu
a5278e511d drm/amd/pp: Revert gfx/compute profile switch sysfs
The gfx/compute profiling mode switch is only for internally
test. Not a complete solution and unexpectly upstream.
so revert it.

Reviewed-by: Evan Quan <evan.quan@amd.com>
Acked-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Rex Zhu <Rex.Zhu@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2018-03-06 13:12:38 -05:00
Rex Zhu
180a8bebdd drm/amd/pp: Fix sclk in highest two levels when compute on smu7
Compute workload tends to be "bursty", Only tune the behavior of
nature dpm don't work well for most of such workloads. From test
results, Fix sclk in highest two levels can get better performance.
so add min sclk setting into the default cumpute workload policy on
smu7.

user still can change sclk range through sysfs pp_dpm_sclk
for better perf/watt.

Reviewed-by: Evan Quan <evan.quan@amd.com>
Signed-off-by: Rex Zhu <Rex.Zhu@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2018-03-06 13:12:29 -05:00
Rex Zhu
5d24af846e drm/amd/pp: Implement get/set_power_profile_mode on smu7
It show what parameters can be configured to tune
the behavior of natural dpm for perf/watt on smu7.

user can select the mode per workload, but even the default per
workload settings are not bulletproof.

user can configure custom settings per different use case
for better perf or better perf/watt.

cat pp_power_profile_mode
NUM        MODE_NAME     SCLK_UP_HYST   SCLK_DOWN_HYST SCLK_ACTIVE_LEVEL     MCLK_UP_HYST   MCLK_DOWN_HYST MCLK_ACTIVE_LEVEL
  0   3D_FULL_SCREEN:        0              100               30                0              100               10
  1     POWER_SAVING:       10                0               30                -                -                -
  2            VIDEO:        -                -                -               10               16               31
  3               VR:        0               11               50                0              100               10
  4          COMPUTE:        0                5               30                -                -                -
  5           CUSTOM:        0                0                0                0                0                0
  *          CURRENT:        0              100               30                0              100               10

Under manual dpm level,

user can echo "0/1/2/3/4">pp_power_profile_mode
to select 3D_FULL_SCREEN/POWER_SAVING/VIDEO/VR/COMPUTE
mode.

echo "5 * * * * * * * *">pp_power_profile_mode
to set custom settings.
"5 * * * * * * * *" mean "CUSTOM enable_sclk SCLK_UP_HYST
SCLK_DOWN_HYST SCLK_ACTIVE_LEVEL enable_mclk MCLK_UP_HYST
MCLK_DOWN_HYST MCLK_ACTIVE_LEVEL"

if the parameter enable_sclk/enable_mclk is true,
driver will update the following parameters to dpm table.
if false, ignore the following parameters.

Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Rex Zhu <Rex.Zhu@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2018-03-06 13:12:13 -05:00
Rex Zhu
40cee3b9e5 drm/amd/pp: Add a helper to set field in u32
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Rex Zhu <Rex.Zhu@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2018-03-05 15:39:36 -05:00
Rex Zhu
15826fbfef drm/amd/pp: Add PCC feature support on Vega
This features controls vega peak current protection to allow
for a wider compatibility with power supplies.

Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Rex Zhu <Rex.Zhu@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2018-03-05 15:39:20 -05:00
Rex Zhu
ada6770e95 drm/amd/pp: Remove cgs_query_system_info
Get gpu info through adev directly in powerplay

Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Rex Zhu <Rex.Zhu@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2018-03-05 15:39:05 -05:00
Rex Zhu
6848d73e88 drm/amd/pp: Remove the wrap functions for acpi in powerplay
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Rex Zhu <Rex.Zhu@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2018-03-05 15:38:57 -05:00
Rex Zhu
e1deba2851 drm/amd/pp: Use amdgpu acpi helper functions in powerplay
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Rex Zhu <Rex.Zhu@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2018-03-05 15:38:50 -05:00
Rex Zhu
65ad7cac38 drm/amd/pp: Refine powerplay instance
Include adev in powerplay instance.
so can visit adev directly instand of through cgs interface.

Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Rex Zhu <Rex.Zhu@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2018-03-05 15:38:20 -05:00
Rex Zhu
16a6620c32 drm/amd/pp: Fix incorrect return value in smu7_check_clk_voltage_valid
Reviewed-by: Evan Quan <evan.quan@amd.com>
Signed-off-by: Rex Zhu <Rex.Zhu@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2018-03-05 15:37:46 -05:00
Eric Huang
a0a73b950d drm/amd/powerplay: fix power over limit on Fiji
power containment disabled only on Fiji and compute
power profile. It violates PCIe spec and may cause power
supply failed. Enabling it will fix the issue, even the
fix will drop performance of some compute tests.

Signed-off-by: Eric Huang <JinHuiEric.Huang@amd.com>
Reviewed-by: Felix Kuehling <Felix.Kuehling@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
2018-02-28 14:18:06 -05:00
Rex Zhu
cd277585d6 drm/amd/pp: Move common dpm check functions to hardwaremanager.c
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Rex Zhu <Rex.Zhu@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2018-02-26 23:09:41 -05:00
Rex Zhu
e21148ecba drm/amd/pp: Cleaning up vega10_enable_dpm_tasks function
1. move display num initialize out of dpm enable tasks.
2. do not set/restore smc telemetry if dpm is runing.

Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Rex Zhu <Rex.Zhu@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2018-02-26 23:09:40 -05:00
Rex Zhu
af264d0245 drm/amd/pp: Refine code in powerplay for Cz/Vega10
Add dpm check functions on CZ/Vega10 to smu backend
function table.

Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Rex Zhu <Rex.Zhu@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2018-02-26 23:09:40 -05:00
Rex Zhu
d246cd53fd drm/amd/pp: Remove dead error checking code on Vega10
when smu failed, print out the error info immediately
for debug. smum_send_msg_to_smu always return true,
so no need to check return value.

Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Rex Zhu <Rex.Zhu@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2018-02-26 23:09:40 -05:00
Eric Huang
472c89fcd5 drm/amd/powerplay: fix thermal interrupts on vega10
a bug in programming thermal interrupt register masks out
interrupts and driver cannot receive interrupts. Setting
0 to mask bits will fix it.

Signed-off-by: Eric Huang <JinHuiEric.Huang@amd.com>
Acked-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2018-02-26 23:09:36 -05:00
Rex Zhu
a02497b732 drm/amd/pp: Fix bug that dpm level was not really locked
Lock the dpm levels when we use SW method to modify
the dpm tables directly to avoid a possible race
with the smu.

Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Rex Zhu <Rex.Zhu@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2018-02-26 23:09:35 -05:00