Commit Graph

9 Commits

Author SHA1 Message Date
Monk Liu
e7da754b00 drm/amdgpu: fix an UMC hw arbitrator bug(v3)
issue:
the UMC6 h/w bug is that when MCLK is doing the switch
in the middle of a page access being preempted by high
priority client (e.g. DISPLAY) then UMC and the mclk switch
would stuck there due to deadlock

how:
fixed by disabling auto PreChg for UMC to avoid high
priority client preempting other client's access on
the same page, thus the deadlock could be avoided

v2:
put the patch in callback of UMC6
v3:
rename the callback to "init_registers"

Signed-off-by: Monk Liu <Monk.Liu@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Reviewed-by: Hawking Zhang <hawking.zhang@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2019-10-03 09:11:01 -05:00
Tao Zhou
d99659a062 drm/amdgpu: rename umc ras_init to err_cnt_init
this interface is related to specific version of umc, distinguish it
from ras_late_init

Signed-off-by: Tao Zhou <tao.zhou1@amd.com>
Reviewed-by: Guchun Chen <guchun.chen@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2019-09-16 10:06:20 -05:00
Tao Zhou
86edcc7dba drm/amdgpu: move umc late init from gmc to umc block
umc late init is umc specific, it's more suitable to be put in umc block

Signed-off-by: Tao Zhou <tao.zhou1@amd.com>
Reviewed-by: Guchun Chen <guchun.chen@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2019-09-16 10:06:03 -05:00
Tao Zhou
dd21a572c9 drm/amdgpu: implement UMC 64 bits REG operations
implement 64 bits operations via 32 bits interface

v2: make use of lower_32_bits() and upper_32_bits() macros

Reviewed-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Hawking Zhang <Hawking.Zhang@amd.com>
Signed-off-by: Tao Zhou <tao.zhou1@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2019-08-09 11:17:10 -05:00
Tao Zhou
fee858ba5f drm/amdgpu: add macro of umc for each channel
common function for all umc versions, loop for each umc channel is
a frequent used operation in umc block, define it as a macro to
simplify code

Signed-off-by: Tao Zhou <tao.zhou1@amd.com>
Reviewed-by: Hawking Zhang <Hawking.Zhang@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2019-08-02 10:30:38 -05:00
Tao Zhou
33b97cf896 drm/amdgpu: add more parameters and functions to amdgpu_umc structure
expose more parameters and functions of specific umc version to common
umc layer, so amdgpu_umc layer and other blocks could access them

Signed-off-by: Tao Zhou <tao.zhou1@amd.com>
Reviewed-by: Hawking Zhang <Hawking.Zhang@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2019-08-02 10:30:38 -05:00
Tao Zhou
c2742aef4d drm/amdgpu: add structures for umc error address translation
add related registers, callback function and channel index table

Signed-off-by: Tao Zhou <tao.zhou1@amd.com>
Reviewed-by: Hawking Zhang <Hawking.Zhang@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2019-07-31 14:50:11 -05:00
Tao Zhou
045c021653 drm/amdgpu: switch to amdgpu_umc structure
create new amdgpu_umc structure to for more umc
settings in future and switch to the new structure

Signed-off-by: Tao Zhou <tao.zhou1@amd.com>
Signed-off-by: Hawking Zhang <Hawking.Zhang@amd.com>
Reviewed-by: Dennis Li <dennis.li@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2019-07-31 14:49:52 -05:00
Hawking Zhang
9e585a523b drm/amdgpu: add amdgpu_umc_functions structure
This is common structure as UMC callback function

Signed-off-by: Hawking Zhang <Hawking.Zhang@amd.com>
Reviewed-by: Dennis Li <dennis.li@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2019-07-31 14:48:57 -05:00