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2018-09-12drm/amdgpu: add amdgpu_vm_pt_parent helperChristian König1-13/+23
Add a function to get the parent of a PD/PT. Signed-off-by: Christian König <christian.koenig@amd.com> Reviewed-by: Felix Kuehling <Felix.Kuehling@amd.com> Reviewed-by: Junwei Zhang <Jerry.Zhang@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2018-09-12drm/amdgpu: fix error handling in amdgpu_cs_user_fence_chunkChristian König1-8/+15
Slowly leaking memory one page at a time :) Signed-off-by: Christian König <christian.koenig@amd.com> Reviewed-by: Andrey Grodzovsky <andrey.grodzovsky@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2018-09-11drm/amdkfd: Only add bi-directional iolink on GPU with XGMI or largebar (v2)shaoyunl4-8/+13
v2: compile fix Signed-off-by: shaoyunl <Shaoyun.Liu@amd.com> Reviewed-by: Felix Kuehling <Felix.Kuehling@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2018-09-11drm/amdkfd: Generate xGMI direct iolinkShaoyun Liu1-10/+68
Generate xGMI iolink for upper level usage Signed-off-by: Shaoyun Liu <Shaoyun.Liu@amd.com> Reviewed-by: Felix Kuehling <Felix.Kuehling@amd.com> Acked-by: Christian König <christian.koenig@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2018-09-11drm/amdkfd: Add new iolink type definesShaoyun Liu1-1/+6
Update the iolink type defines according to the new thunk spec Signed-off-by: Shaoyun Liu <Shaoyun.Liu@amd.com> Reviewed-by: Felix Kuehling <Felix.Kuehling@amd.com> Acked-by: Christian König <christian.koenig@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2018-09-11drm/amdkfd: kfd expose the hive_id of the device through its node propertiesShaoyun Liu4-0/+11
Thunk will generate the XGMI topology information when necessary with the hive_id for each specified device Signed-off-by: Shaoyun Liu <Shaoyun.Liu@amd.com> Reviewed-by: Felix Kuehling <Felix.Kuehling@amd.com> Acked-by: Christian König <christian.koenig@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2018-09-11drm/amdgpu: get_hive_id from amdgpu side (v2)Shaoyun Liu3-1/+10
Retrieve hive_id from amdgpu device v2: compile fix Signed-off-by: Shaoyun Liu <Shaoyun.Liu@amd.com> Reviewed-by: Felix Kuehling <Felix.Kuehling@amd.com> Acked-by: Christian König <christian.koenig@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2018-09-11drm/amd/include: Add get_hive_id interface in kfd2kgdShaoyun Liu1-0/+5
KFD need to get hive id from amdgpu to build up the XGMI topology Signed-off-by: Shaoyun Liu <Shaoyun.Liu@amd.com> Reviewed-by: Felix Kuehling <Felix.Kuehling@amd.com> Acked-by: Christian König <christian.koenig@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2018-09-11drm/amdgpu : Generate XGMI topology info from driver levelShaoyun Liu5-1/+129
Driver will save an array of XGMI hive info, each hive will have a list of devices that have the same hive ID. Signed-off-by: Shaoyun Liu <Shaoyun.Liu@amd.com> Reviewed-by: Felix Kuehling <Felix.Kuehling@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2018-09-11drm/amdgpu: Add place holder functions for xgmi topology interface with pspShaoyun Liu1-0/+30
Add dummy function for xgmi function interface with psp Signed-off-by: Shaoyun Liu <Shaoyun.Liu@amd.com> Reviewed-by: Felix Kuehling <Felix.Kuehling@amd.com> Reviewed-by: Huang Rui <ray.huang@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2018-09-11drm/amdgpu : Add psp function interfaces for XGMI supportShaoyun Liu1-0/+34
Place holder for XGMI support Signed-off-by: Shaoyun Liu <Shaoyun.Liu@amd.com> Reviewed-by: Huang Rui <ray.huang@amd.com> Acked-by: Christian König <christian.koenig@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2018-09-11drm/amdgpu/gmc9: Adjust GART and AGP location with xgmi offset (v2)Alex Deucher5-10/+39
On hives with xgmi enabled, the fb_location aperture is a size which defines the total framebuffer size of all nodes in the hive. Each GPU in the hive has the same view via the fb_location aperture. GPU0 starts at offset (0 * segment size), GPU1 starts at offset (1 * segment size), etc. For access to local vram on each GPU, we need to take this offset into account. This including on setting up GPUVM page table and GART table v2: squash in "drm/amdgpu: Init correct fb region for none XGMI configuration" Acked-by: Huang Rui <ray.huang@amd.com> Acked-by: Slava Abramov <slava.abramov@amd.com> Signed-off-by: Shaoyun Liu <Shaoyun.Liu@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com> Reviewed-by: Felix Kuehling <Felix.Kuehling@amd.com> Acked-by: Huang Rui <ray.huang@amd.com>
2018-09-11drm/amdgpu/gmc9: add a new gfxhub 1.1 helper for xgmiAlex Deucher4-1/+87
Used to populate the xgmi info on vega20. v2: PF_MAX_REGION is val - 1 (Ray) Acked-by: Huang Rui <ray.huang@amd.com> Acked-by: Slava Abramov <slava.abramov@amd.com> Reviewed-by :Shaoyun liu <Shaoyun.liu@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com> Acked-by: Christian König <christian.koenig@amd.com> Signed-off-by :Shaoyun liu <Shaoyun.liu@amd.com>
2018-09-11drm/amdgpu/gmc: add initial xgmi structure to amdgpu_gmc structureAlex Deucher1-0/+14
Initial pass at a structure to store xgmi info. xgmi is a high speed cross gpu interconnect. Acked-by: Huang Rui <ray.huang@amd.com> Acked-by: Slava Abramov <slava.abramov@amd.com> Reviewed-by :Shaoyun liu <Shaoyun.liu@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com> Signed-off-by: Shaoyun Liu <Shaoyun.Liu@amd.com>
2018-09-11drm/amd/include: update the bitfield define for PF_MAX_REGIONShaoyun Liu1-2/+2
Correct the definition based on vega20 register spec Signed-off-by: Shaoyun Liu <Shaoyun.Liu@amd.com> Reviewed-by: Felix Kuehling <Felix.Kuehling@amd.com> Acked-by: Christian König <christian.koenig@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2018-09-11drm/amdgpu: move PSP init prior to IH in gpu resetEmily Deng1-1/+1
since we use PSP to program IH regs now Signed-off-by: Monk Liu <Monk.Liu@amd.com> Acked-by: Christian König <christian.koenig@amd.com> Reviewed-by: Huang Rui <ray.huang@amd.com> Signed-off-by: Emily Deng <Emily.Deng@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2018-09-11drm/amdgpu: set bulk_moveable to false when a per VM is releasedChristian König1-0/+4
Otherwise we might run into a use after free during bulk move. Signed-off-by: Christian König <christian.koenig@amd.com> Reviewed-by: Huang Rui <ray.huang@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2018-09-11drm/amdgpu: Fix SDMA hang in prt mode v2Tao Zhou1-2/+5
Fix SDMA hang in prt mode, clear XNACK_WATERMARK in reg SDMA0_UTCL1_WATERMK to avoid the issue Affected ASICs: VEGA10 VEGA12 RV1 RV2 v2: add reg clear for SDMA1 Signed-off-by: Tao Zhou <tao.zhou1@amd.com> Tested-by: Yukun Li <yukun1.li@amd.com> Reviewed-by: Hawking Zhang <Hawking.Zhang@amd.com> Acked-by: Christian König <christian.koenig@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2018-09-11drm/amd/powerplay: fix compile warning for wrong data type V2Evan Quan1-2/+2
do_div expects the 1st argument in 64bit instead of 32bit. Drop the usage of do_div as it seems unnecessary. V2: drop usage of do_div completely 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>
2018-09-11drm/amdgpu: Fix warnings while make xmldocsMasanari Iida1-1/+1
This patch fixes following warnings. ./drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c:3011: warning: Excess function parameter 'dev' description in 'amdgpu_vm_get_task_info' ./drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c:3012: warning: Function parameter or member 'adev' not described in 'amdgpu_vm_get_task_info' ./drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c:3012: warning: Excess function parameter 'dev' description in 'amdgpu_vm_get_task_info' Signed-off-by: Masanari Iida <standby24x7@gmail.com> Signed-off-by: Michel Dänzer <michel.daenzer@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2018-09-11drm/amdgpu: Fix compute VM BO params after rebase v2Felix Kuehling1-3/+4
The intent of two commits was lost in the last rebase: 810955b drm/amdgpu: Fix acquiring VM on large-BAR systems b5d21aa drm/amdgpu: Don't use shadow BO for compute context This commit restores the original behaviour: * Don't set AMDGPU_GEM_CREATE_NO_CPU_ACCESS for page directories to allow them to be reused for compute VMs * Don't create shadow BOs for page tables in compute VMs v2: move more logic into amdgpu_vm_bo_param Signed-off-by: Felix Kuehling <Felix.Kuehling@amd.com> Tested-by: Kent Russell <Kent.Russell@amd.com> Reviewed-by: Christian König <christian.koenig@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2018-09-11drm/amdgpu: enable AGP aperture for GMC9 v2Christian König3-10/+12
Enable the old AGP aperture to avoid GART mappings. v2: don't enable it for SRIOV Signed-off-by: Christian König <christian.koenig@amd.com> Reviewed-by: Junwei Zhang <Jerry.Zhang@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2018-09-11drm/amdgpu: Clean up KFD init and finiFelix Kuehling2-12/+5
Only initialize KFD once by moving amdgpu_amdkfd_init from amdgpu_pci_probe to amdgpu_init. This fixes kernel oopses and hangs when booting multi-GPU systems. Also removed some vestiges of KFD being its own module. Signed-off-by: Felix Kuehling <Felix.Kuehling@amd.com> Acked-by: Alex Deucher <alexander.deucher@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2018-09-11drm/amd/display: Add invariant support instrumentation in driverJun Lei3-27/+61
Existing debug dump are all invariant, new “low 32-bit of address” dump is not invariant Signed-off-by: Jun Lei <Jun.Lei@amd.com> Reviewed-by: Eric Yang <eric.yang2@amd.com> Acked-by: Bhawanpreet Lakha <Bhawanpreet.Lakha@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2018-09-11drm/amd/display: clean code for transition event log.Chiawen Huang3-29/+0
[Why] There are same purpose transition events. [How] remove the redundant event log. Signed-off-by: Chiawen Huang <chiawen.huang@amd.com> Reviewed-by: Tony Cheng <Tony.Cheng@amd.com> Acked-by: Bhawanpreet Lakha <Bhawanpreet.Lakha@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2018-09-11drm/amd/display: Remove call to amdgpu_pm_compute_clocksDavid Francis1-8/+0
[Why] The extraneous call to amdgpu_pm_compute_clocks is deprecated. [How] Remove it. Signed-off-by: David Francis <David.Francis@amd.com> Signed-off-by: Leo Li <sunpeng.li@amd.com> Reviewed-by: David Francis <David.Francis@amd.com> Acked-by: Bhawanpreet Lakha <Bhawanpreet.Lakha@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2018-09-11drm/amd/display: use link type to decide stream enc acquisitionEric Yang1-1/+1
[Why] Virtual sink is used when set mode happens on a disconnected display to allow the mode set to proceed. This did not work with MST because the logic for acquiring stream encoder uses stream signal to determine the special handling is required, and stream signal is virtual instead of DP in this case. [How] Use link type to decide instead. Signed-off-by: Eric Yang <Eric.Yang2@amd.com> Reviewed-by: Tony Cheng <Tony.Cheng@amd.com> Acked-by: Bhawanpreet Lakha <Bhawanpreet.Lakha@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2018-09-11drm/amd/display: dc 3.1.65Tony Cheng1-1/+1
Signed-off-by: Tony Cheng <tony.cheng@amd.com> Reviewed-by: Steven Chiu <Steven.Chiu@amd.com> Acked-by: Bhawanpreet Lakha <Bhawanpreet.Lakha@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2018-09-11drm/amd/display: Reorder resource_pool to put i2c with auxDavid Francis1-1/+1
[Why] The i2c and aux engines are similar, and should be placed next to eachother for readability [How] Reorder the elements of the resource_pool struct Signed-off-by: David Francis <David.Francis@amd.com> Reviewed-by: Tony Cheng <Tony.Cheng@amd.com> Acked-by: Bhawanpreet Lakha <Bhawanpreet.Lakha@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2018-09-11drm/amd/display: Use DRM helper for best_encoderLeo Li1-23/+1
[Why] Our implementation is functionally identical to DRM's Note that instead of checking if the provided id is 0, the helper follows through with the mode object search. However, It will still return NULL, since 0 is not a valid object id, and missed searches will return NULL. [How] Remove our implementation, and replace it with drm_atomic_helper_best_encoder. Signed-off-by: Leo Li <sunpeng.li@amd.com> Reviewed-by: David Francis <David.Francis@amd.com> Acked-by: Bhawanpreet Lakha <Bhawanpreet.Lakha@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2018-09-11drm/amd/display: num of sw i2c/aux engines less than num of connectorsHersen Wu7-5/+52
[why] AMD Stoney reference board, there are only 2 pipes (not include underlay), and 3 connectors. resource creation, only 2 I2C/AUX engines are created. Within dc_link_aux_transfer, when pin_data_en =2, refer to enengines[ddc_pin->pin_data->en] = NULL. NULL point is referred later causing system crash. [how] each asic design has fixed number of ddc engines at hw side. for each ddc engine, create its i2x/aux engine at sw side. Signed-off-by: Hersen Wu <hersenxs.wu@amd.com> Reviewed-by: Tony Cheng <Tony.Cheng@amd.com> Acked-by: Bhawanpreet Lakha <Bhawanpreet.Lakha@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2018-09-11drm/amd/display: add aux transition event log.Chiawen Huang4-1/+76
[Why] Enhance aux transition debugging information. [How] Added Aux request and reply event log. Signed-off-by: Chiawen Huang <chiawen.huang@amd.com> Reviewed-by: Tony Cheng <Tony.Cheng@amd.com> Acked-by: Bhawanpreet Lakha <Bhawanpreet.Lakha@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2018-09-11drm/amd/display: add disconnect_delay to dc_panel_patchDerek Lai1-0/+1
Some display need disconnect delay. Adding this parameter for future use Signed-off-by: Derek Lai <Derek.Lai@amd.com> Reviewed-by: Charlene Liu <Charlene.Liu@amd.com> Acked-by: Bhawanpreet Lakha <Bhawanpreet.Lakha@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2018-09-11drm/amd/display: remove unused clk_src codeDmytro Laktyushkin2-90/+1
Signed-off-by: Dmytro Laktyushkin <Dmytro.Laktyushkin@amd.com> Reviewed-by: Charlene Liu <Charlene.Liu@amd.com> Acked-by: Bhawanpreet Lakha <Bhawanpreet.Lakha@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2018-09-11drm/amd/display: remove dead dc vbios codeDmytro Laktyushkin3-1514/+39
Signed-off-by: Dmytro Laktyushkin <Dmytro.Laktyushkin@amd.com> Reviewed-by: Charlene Liu <Charlene.Liu@amd.com> Acked-by: Bhawanpreet Lakha <Bhawanpreet.Lakha@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2018-09-11drm/amd/display: Add driver-side parsing for CMJun Lei1-4/+25
Although 4 unique register values exist for gamma modes, two are actually the same (the two RAMs) It’s not possible for caller to understand this HW specific behavior, so some parsing is necessary in driver Signed-off-by: Jun Lei <Jun.Lei@amd.com> Reviewed-by: Wesley Chalmers <Wesley.Chalmers@amd.com> Acked-by: Bhawanpreet Lakha <Bhawanpreet.Lakha@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2018-09-11drm/amd/display: Fix DAL217 tests modify DTN logs for other testsGary Kattan1-6/+8
[Why]Update Code to get DTN golden log check to pass for tests run after DAL217 tests. [How]Change how dcn10_log_hw_state function prints HW state info (CM_GAMUT_REMAP_Cx_Cx registers) when GAMUT REMAP is in bypass mode. Signed-off-by: Gary Kattan <gary.kattan@amd.com> Reviewed-by: Dmytro Laktyushkin <Dmytro.Laktyushkin@amd.com> Acked-by: Bhawanpreet Lakha <Bhawanpreet.Lakha@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2018-09-11drm/amd/display: Add DP YCbCr 4:2:0 supportEric Bernstein1-1/+188
[Why] For supporting DP YCbCr 4:2:0 output. [How] Update mod_build_vsc_infopacket to support Pixel Encoding/Colorimetry Format indication for VSC SDP rev5. Signed-off-by: Eric Bernstein <eric.bernstein@amd.com> Reviewed-by: Dmytro Laktyushkin <Dmytro.Laktyushkin@amd.com> Acked-by: Bhawanpreet Lakha <Bhawanpreet.Lakha@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2018-09-11drm/amd/display: Build stream update and plane updates in dmBhawanpreet Lakha1-1/+115
[Why] We currently lock modeset by setting a boolean in dm. We want to lock Based on what DC tells us. [How] Build stream_updates and plane_update based on what changed. Then we call check_update_surfaces_for_stream() to get the update type We lock only if update_type is not fast Signed-off-by: Bhawanpreet Lakha <Bhawanpreet.Lakha@amd.com> Reviewed-by: Harry Wentland <Harry.Wentland@amd.com> Acked-by: Bhawanpreet Lakha <Bhawanpreet.Lakha@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2018-09-11drm/amd/display: dc 3.1.64Tony Cheng1-1/+1
Signed-off-by: Tony Cheng <tony.cheng@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2018-09-11drm/amdgpu: manually map the shadow BOs againChristian König2-4/+6
Otherwise we won't be able to use the AGP aperture. Signed-off-by: Christian König <christian.koenig@amd.com> Reviewed-by: Junwei Zhang <Jerry.Zhang@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2018-09-11drm/amdgpu: use the AGP aperture for system memory access v2Christian König3-25/+57
Start to use the old AGP aperture for system memory access. v2: Move that to amdgpu_ttm_alloc_gart Signed-off-by: Christian König <christian.koenig@amd.com> Reviewed-by: Junwei Zhang <Jerry.Zhang@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2018-09-11drm/amdgpu: add amdgpu_gmc_agp_location v3Christian König2-0/+48
Helper to figure out the location of the AGP BAR. v2: fix a couple of bugs v3: correctly add one to vram_end Signed-off-by: Christian König <christian.koenig@amd.com> Reviewed-by: Junwei Zhang <Jerry.Zhang@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2018-09-11drm/amdgpu: correctly sign extend 48bit addresses v3Christian König9-32/+44
Correct sign extend the GMC addresses to 48bit. v2: sign extending turned out easier than thought. v3: clean up the defines and move them into amdgpu_gmc.h as well Signed-off-by: Christian König <christian.koenig@amd.com> Reviewed-by: Junwei Zhang <Jerry.Zhang@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2018-09-11drm/amdgpu: improve VM state machine documentation v2Christian König1-32/+109
Since we have a lot of FAQ on the VM state machine try to improve the documentation by adding functions for each state move. v2: fix typo in amdgpu_vm_bo_invalidated, use amdgpu_vm_bo_relocated in one more place as well. Signed-off-by: Christian König <christian.koenig@amd.com> Reviewed-by: Junwei Zhang <Jerry.Zhang@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2018-09-11drm/amdgpu: fix amdgpu_mn_unlock() in the CS error pathChristian König1-1/+1
Avoid unlocking a lock we never locked. Signed-off-by: Christian König <christian.koenig@amd.com> Reviewed-by: Junwei Zhang <Jerry.Zhang@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2018-09-11drm/amdgpu: separate per VM BOs from normal in the moved stateChristian König2-36/+38
Allows us to avoid taking the spinlock in more places. Signed-off-by: Christian König <christian.koenig@amd.com> Reviewed-by: Junwei Zhang <Jerry.Zhang@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2018-09-11drm/amdgpu: move size calculations to the front of the file againChristian König1-45/+45
amdgpu_vm_bo_* functions should come much later. Signed-off-by: Christian König <christian.koenig@amd.com> Reviewed-by: Junwei Zhang <Jerry.Zhang@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2018-09-11drm/amd/powerplay: correct data type to support under voltageEvan Quan1-3/+3
For under voltage, negative value will be applied to voltage offset. Update the data type to cover this case. 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>
2018-09-11drm/amd/powerplay: added vega20 overdrive support V3Evan Quan3-1/+335
Added vega20 overdrive support based on existing OD sysfs APIs. However, the OD logics are simplified on vega20. So, the behavior will be a little different and works only on some limited levels. V2: fix typo fix commit description revise error logs add support for clock OD V3: separate clock from voltage OD settings 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>
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