Commit Graph

45716 Commits

Author SHA1 Message Date
Mikita Lipski
762f52e9e4 drm/amd/pp: Connect display_clock_voltage_request to a function pointer
Get rid of an empty dublicate of smu10_display_clock_voltage_request

Add display_clock_voltage_request to smu10 functions struct so it
can be called from outside the class and connect the pointer to
the function.

That way Display driver can finally apply clock voltage requests
when needed.

Signed-off-by: Mikita Lipski <mikita.lipski@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2018-05-30 12:37:51 -05:00
Evan Quan
102e494001 drm/amdgpu: typo fix for vega20 cg flags
The AMD_CG_SUPPORT_HDP_LS was wrongly written as
AMD_CG_SUPPORT_BIF_LS.

Signed-off-by: Evan Quan <evan.quan@amd.com>
Reviewed-by: Huang Rui <ray.huang@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2018-05-30 12:37:05 -05:00
Evan Quan
2f6a18ebd0 drm/amd/powerplay: bug fixs for getsmuclockinfo
The .syspll_id and .dfsdid are not initialzed correctly. And
le32_to_cpu transfer is needed on the output.

Signed-off-by: Evan Quan <evan.quan@amd.com>
Reviewed-by: Huang Rui <ray.huang@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2018-05-30 12:35:34 -05:00
Evan Quan
ee7a99c79a drm/amdgpu: correct SMU11 SYSPLL0 clock id values
The SMU11 SYSPLL0 clock ids were assigned wrong values.

Signed-off-by: Evan Quan <evan.quan@amd.com>
Reviewed-by: Huang Rui <ray.huang@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2018-05-30 12:35:06 -05:00
Chunming Zhou
ee5309d5f3 drm/amdgpu: gds bo must not be per-vm-bo
In per-vm-bo case, there could be no bo list.
But gds bo created from user space  must be passed to bo list.
So adding a check to prevent to creat gds bo as per-vm-bo.

Signed-off-by: Chunming Zhou <david1.zhou@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2018-05-30 12:34:34 -05:00
Emily Deng
01d98506ec drm/amdgpu: To get gds, gws and oa from adev->gds (v2)
As now enabled per vm bo feature, the user mode driver won't supply the
bo_list generally, for this case, the gdb_base, gds_size, gws_base, gws_size and
oa_base, oa_size won't be set.

v2: fix warning (Chunming)

Signed-off-by: Emily Deng <Emily.Deng@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2018-05-30 12:34:06 -05:00
Leo (Sunpeng) Li
20d4ac659c drm/amd/display: Fix BUG_ON during CRTC atomic check update
For cases where the CRTC is inactive (DPMS off), where a modeset is not
required, yet the CRTC is still in the atomic state, we should not
attempt to update anything on it.

Previously, we were relying on the modereset_required() helper to check
the above condition. However, the function returns false immediately if
a modeset is not required, ignoring the CRTC's enable/active state
flags. The correct way to filter is by looking at these flags instead.

Fixes: e277adc5a0 "drm/amd/display: Hookup color management functions"
Bugzilla: https://bugs.freedesktop.org/106194

Signed-off-by: Leo (Sunpeng) Li <sunpeng.li@amd.com>
Reviewed-by: Harry Wentland <harry.wentland@amd.com>
Tested-by: Michel Dänzer <michel.daenzer@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2018-05-29 14:01:49 -05:00
Nikola Cornij
c733e40c74 drm/amd/display: Read DP_SINK_COUNT_ESI range on HPD for DP 1.4
DP 1.4 compliance now requires that registers at DP_SINK_COUNT_ESI range
(0x2002-0x2003, 0x200c-0x200f) are read instead of DP_SINK_COUNT range
(0x200-0x2005.

Signed-off-by: Nikola Cornij <nikola.cornij@amd.com>
Reviewed-by: Tony Cheng <Tony.Cheng@amd.com>
Acked-by: Harry Wentland <harry.wentland@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2018-05-29 14:01:48 -05:00
Nikola Cornij
794550c6ea drm/amd/display: Read DPCD link caps up to and including DP_ADAPTER_CAP
DP 1.4 compliance requires 16 bytes to be read when reading link caps,
i.e. it requires DP_ADAPTER_CAP to be included. Included it for all DP
versions because reading more than required won't fail.

Signed-off-by: Nikola Cornij <nikola.cornij@amd.com>
Reviewed-by: Tony Cheng <Tony.Cheng@amd.com>
Acked-by: Harry Wentland <harry.wentland@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2018-05-29 13:31:37 -05:00
Mikita Lipski
4ea7fc0953 drm/amd/display: Do not program interrupt status on disabled crtc
Prevent interrupt programming of a crtc on which the stream is disabled and
it doesn't have an OTG to reference.

Signed-off-by: Mikita Lipski <mikita.lipski@amd.com>
Reviewed-by: Harry Wentland <Harry.Wentland@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2018-05-29 13:30:38 -05:00
Dmytro Laktyushkin
0b19fdc45f drm/amd/display: fix dscl_manual_ratio_init
This change will fix wb and display scaling when ratios of
4 or more are involved

Signed-off-by: Dmytro Laktyushkin <Dmytro.Laktyushkin@amd.com>
Reviewed-by: Tony Cheng <Tony.Cheng@amd.com>
Acked-by: Harry Wentland <harry.wentland@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2018-05-29 13:28:29 -05:00
Leo (Sunpeng) Li
df099b9b60 drm/amd/display: Destroy connector state on reset
When a DRM mode reset is called on resume, the connector state's
destructor is not called. This leaves a dangling reference on the CRTC
commit object, which was obtained by the connector state during commit
setup.

Signed-off-by: Leo (Sunpeng) Li <sunpeng.li@amd.com>
Reviewed-by: Harry Wentland <Harry.Wentland@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2018-05-29 13:27:32 -05:00
Eric Bernstein
aa6d4a59d6 drm/amd/display: Set TMZ and DCC for secondary surface
Add register programming to support TMZ and DCC on
secondary surfaces.

Signed-off-by: Eric Bernstein <eric.bernstein@amd.com>
Reviewed-by: Tony Cheng <Tony.Cheng@amd.com>
Acked-by: Harry Wentland <harry.wentland@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2018-05-29 13:26:40 -05:00
Eric Bernstein
01884c02c4 drm/amd/display: DP component depth 16 bpc
Add register programming to support 16bpc component
depth for DP.

Signed-off-by: Eric Bernstein <eric.bernstein@amd.com>
Reviewed-by: Tony Cheng <Tony.Cheng@amd.com>
Acked-by: Harry Wentland <harry.wentland@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2018-05-29 13:25:15 -05:00
Roman Li
9356badb26 drm/amd/display: check if audio clk enable is applicable
Fixing warning on dce10 with HDMI display.

Signed-off-by: Roman Li <Roman.Li@amd.com>
Reviewed-by: Charlene Liu <Charlene.Liu@amd.com>
Reviewed-by: Harry Wentland <Harry.Wentland@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2018-05-29 13:24:13 -05:00
Charlene Liu
fb5fb63aa9 drm/amd/display: add register offset != 0 check.
Signed-off-by: Charlene Liu <charlene.liu@amd.com>
Reviewed-by: Tony Cheng <Tony.Cheng@amd.com>
Acked-by: Harry Wentland <harry.wentland@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2018-05-29 13:23:36 -05:00
Mikita Lipski
aed15309b9 drm/amd/display: Release fake sink
If connector doesn't have a sink, fake sink is created, but
never released as it assumed that its destroyed with the
stream it is used for. But now sink is released before the
stream maintaing refcount consistency.

This way we also avoid assigning anything to connector keeping
all the operation local.

Signed-off-by: Mikita Lipski <mikita.lipski@amd.com>
Reviewed-by: Harry Wentland <Harry.Wentland@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2018-05-29 13:22:03 -05:00
Roman Li
2b6199a1d1 drm/amd/display: replace msleep with udelay in fbc path
FBC enabling and disabling path has msleep which leads to
BUG hit when called in atomic context, hence this patch
replaces msleeps with udelays appropriately.

Signed-off-by: Shirish S <shirish.s@amd.com>
Signed-off-by: Roman Li <Roman.Li@amd.com>
Reviewed-by: Tony Cheng <Tony.Cheng@amd.com>
Acked-by: Harry Wentland <harry.wentland@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2018-05-29 13:20:34 -05:00
Mikita Lipski
e03fd3f300 drm/amd/display: Do not limit color depth to 8bpc
Delete if statement that would force any display's color depth higher
than 8 bpc to 8

Signed-off-by: Mikita Lipski <mikita.lipski@amd.com>
Reviewed-by: Harry Wentland <Harry.Wentland@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2018-05-29 13:18:53 -05:00
Leo Liu
4c6530fd66 drm/amdgpu: remove unnecessary scheduler entity for VCN
It should be stateless, and no need for scheduler to take care specially.

Signed-off-by: Leo Liu <leo.liu@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2018-05-29 13:18:20 -05:00
Deepak Sharma
84b7460844 drm/amdgpu: Add helper function to get buffer domain
Move logic of getting supported domain to a helper
function

Signed-off-by: Deepak Sharma <Deepak.Sharma@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2018-05-29 13:17:51 -05:00
Deepak Sharma
bda31a24dc drm/amdgpu: Use GTT for dumb buffer if sg display enabled (v2)
When vram size <= THRESHOLD(256M) lets use GTT for dumb buffer
allocation. As SG will be enabled with vram size <= 256M
scan out will not be an issue.

v2: Use amdgpu_display_supported_domains to get supported domain.

Signed-off-by: Deepak Sharma <Deepak.Sharma@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2018-05-29 13:17:35 -05:00
Mikita Lipski
7bee0572e3 drm/amd/pp: Add cases for getting phys and disp clks for SMU10
Add case options to retrieve either physical or display clocks with
voltage from SMU controller that are needed by display driver.

Signed-off-by: Mikita Lipski <mikita.lipski@amd.com>
Acked-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2018-05-29 13:17:10 -05:00
Harry Wentland
10dd2b8653 drm/amd/display: Fix wrong latency assignment for VEGA clock levels
Also drop wrong 10kHz comment

Fixes: drm/amd/display: Implement dm_pp_get_clock_levels_by_type_with_latency
Signed-off-by: Harry Wentland <harry.wentland@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2018-05-29 13:16:48 -05:00
Nayan Deshmukh
6201e033d7 drm/scheduler: fix a corner case in dependency optimization
When checking for a dependency fence for belonging to the same entity
compare it with scheduled as well finished fence. Earlier we were only
comparing it with the scheduled fence.

Signed-off-by: Nayan Deshmukh <nayan26deshmukh@gmail.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2018-05-25 11:02:14 -05:00
kbuild test robot
adea72c504 drm/amdgpu: vcn_v1_0_is_idle() can be static
Fixes: 9b4c412a654c ("drm/amdgpu: Add static CG control for VCN on RV")
Signed-off-by: kbuild test robot <fengguang.wu@intel.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2018-05-25 11:02:04 -05:00
Harry Wentland
bfdec23404 drm/amd/display: Implement dm_pp_get_clock_levels_by_type_with_latency
This is required so we use the correct minimum clocks for Vega. Without
this pplib will never be able to enter the lowest clock states.

Signed-off-by: Harry Wentland <harry.wentland@amd.com>
Acked-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2018-05-25 11:01:49 -05:00
Dave Airlie
dd41fb8547 Merge branch 'drm-next-4.18' of git://people.freedesktop.org/~agd5f/linux into drm-next
Last feature request for 4.18.  Mostly vega20 support.
- Vega20 support
- clock and powergating for VCN
- misc bug fixes

Signed-off-by: Dave Airlie <airlied@redhat.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20180524152427.32713-1-alexander.deucher@amd.com
2018-05-25 10:28:33 +10:00
David Francis
b8f3439fa5 drm/amd/display: Remove use of division operator for long longs
In fixed31_32.h, in dc_fixpt_shl,'/' was used for division of one long
long int by another long long int.  As there is no inbuilt long long
int division function in c, gcc inserted its own.  However, gcc does not
link the library that contains this function.  To avoid this, use
bitwise operators instead of /

Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: David Francis <David.Francis@amd.com>
Reviewed-by: Dmytro Laktyushkin <Dmytro.Laktyushkin@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2018-05-24 10:07:56 -05:00
Shaoyun Liu
f9fb22a21b drm/amdgpu: Update GFX info structure to match what vega20 used
Update to the latest version from the vbios team.

Signed-off-by: Shaoyun Liu <Shaoyun.Liu@amd.com>
Acked-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2018-05-24 10:07:55 -05:00
Alex Deucher
bf20f0ab54 drm/amdgpu/pp: remove duplicate assignment
is_dpm_running callback was assigned to the same value
twice.  Drop the duplicate.

Reviewed-by: Michel Dänzer <michel.daenzer@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2018-05-24 10:07:55 -05:00
Emily Deng
52bf20f414 drm/sched: add rcu_barrier after entity fini
To free the fence from the amdgpu_fence_slab, need twice call_rcu, to avoid
the amdgpu_fence_slab_fini call kmem_cache_destroy(amdgpu_fence_slab) before
kmem_cache_free(amdgpu_fence_slab, fence), add rcu_barrier after drm_sched_entity_fini.

The kmem_cache_free(amdgpu_fence_slab, fence)'s call trace as below:
1.drm_sched_entity_fini ->
drm_sched_entity_cleanup ->
dma_fence_put(entity->last_scheduled) ->
drm_sched_fence_release_finished ->
drm_sched_fence_release_scheduled ->
call_rcu(&fence->finished.rcu, drm_sched_fence_free)

2.drm_sched_fence_free ->
dma_fence_put(fence->parent) ->
amdgpu_fence_release ->
call_rcu(&f->rcu, amdgpu_fence_free) ->
kmem_cache_free(amdgpu_fence_slab, fence);

v2:put the barrier before the kmem_cache_destroy
v3:put the dma_fence_put(fence->parent) before call_rcu in
drm_sched_fence_release_scheduled

Signed-off-by: Emily Deng <Emily.Deng@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2018-05-24 10:07:55 -05:00
Christian König
806f043f02 drm/amdgpu: move VM BOs on LRU again
Move all BOs belonging to a VM on the LRU with every submission.

Signed-off-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Chunming Zhou <david1.zhou@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2018-05-24 10:07:54 -05:00
Christian König
862b8c5762 drm/amdgpu: consistenly use VM moved flag
Instead of sometimes checking if the vm_status is empty use the moved
flag and also reset it when the BO leaves the state machine.

Signed-off-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Chunming Zhou <david1.zhou@amd.com>
Reviewed-by: Junwei Zhang <Jerry.Zhang@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2018-05-24 10:07:54 -05:00
Christian König
a7f91061c6 drm/amdgpu: kmap PDs/PTs in amdgpu_vm_update_directories
In theory it is possible that PDs/PTs can move without eviction.

Signed-off-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Chunming Zhou <david1.zhou@amd.com>
Reviewed-by: Junwei Zhang <Jerry.Zhang@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2018-05-24 10:07:53 -05:00
Christian König
789f3317ed drm/amdgpu: further optimize amdgpu_vm_handle_moved
Splice the moved list to a local one to avoid taking the lock over and
over again.

Signed-off-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Chunming Zhou <david1.zhou@amd.com>
Reviewed-by: Junwei Zhang <Jerry.Zhang@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2018-05-24 10:07:53 -05:00
Christian König
91ccdd24a1 drm/amdgpu: cleanup amdgpu_vm_validate_pt_bos v2
Use list_for_each_entry_safe here.

v2: Drop the optimization, it doesn't work as expected.

Signed-off-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Chunming Zhou <david1.zhou@amd.com>
Reviewed-by: Junwei Zhang <Jerry.Zhang@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2018-05-24 10:07:53 -05:00
Christian König
af4c0f650b drm/amdgpu: rework VM state machine lock handling v2
Only the moved state needs a separate spin lock protection. All other
states are protected by reserving the VM anyway.

v2: fix some more incorrect cases

Signed-off-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Chunming Zhou <david1.zhou@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2018-05-24 10:07:52 -05:00
Rex Zhu
22cc6c5e19 drm/amdgpu: Add runtime VCN PG support
Enable support for dynamically powering up/down VCN on demand.

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>
2018-05-24 10:07:52 -05:00
Rex Zhu
61c8e90d96 drm/amdgpu: Enable VCN static PG by default on RV
Enable static VCN powergating by default on Raven.

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>
2018-05-24 10:07:51 -05:00
Rex Zhu
d58c5d9a42 drm/amdgpu: Add VCN static PG support on RV
Implement static powergating suport on VCN.

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>
2018-05-24 10:07:51 -05:00
Rex Zhu
79953a60e4 drm/amdgpu: Enable VCN CG by default on RV
Enable VCN clockgating by default on Raven.

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>
2018-05-24 10:07:51 -05:00
Rex Zhu
c9dc5abb66 drm/amdgpu: Add static CG control for VCN on RV
Implement proper static clockgating support for VCN.

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>
2018-05-24 10:07:40 -05:00
Rex Zhu
ac06b4cfd7 drm/amdgpu: Add SOC15_WAIT_ON_RREG macro define
Add new macro to wait on a register field to be a specific
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>
2018-05-24 00:18:02 -05:00
Rex Zhu
8dbb8cdf52 drm/amdgpu: Add CG/PG flags for VCN
Define new clock and powergating flags for VCN block.

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>
2018-05-24 00:16:57 -05:00
Rex Zhu
ca0b949463 drm/amd/pp: Add smu support for VCN powergating on RV
Add the powerplay callback for powergating VCN (same
as UVD and VCE).

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>
2018-05-24 00:15:52 -05:00
Rex Zhu
34319b329f drm/amdgpu: skip CG for VCN when late_init/fini
VCN clockgating is handled manually like VCE and UVD.

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>
2018-05-24 00:15:44 -05:00
Rex Zhu
e6ee925b79 drm/amd/pp: fix a couple locking issues
We should return unlock on the error path

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>
2018-05-24 00:15:37 -05:00
Rex Zhu
63e138abf0 drm/amd/pp: Fix static checker warning
error: uninitialized symbol 'xxxx'

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>
2018-05-24 00:15:13 -05:00
Alex Deucher
e1d1a7729a drm/amdgpu/gmc9: disable partial wr rmw if ECC is not enabled
The vbios mistakenly sets this bit on some boards without ECC.
This can lead to reduced performance in some workloads.  Disable
the bit if the board does not have ECC.

Reviewed-by: Hawking Zhang <Hawking.Zhang@amd.com>
Reviewed-by: Junwei Zhang <Jerry.Zhang@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2018-05-23 23:51:22 -05:00