linux/drivers/gpu/drm/amd
Zhan Liu c02d6a1613 drm/amd/display: Add missing HBM support and raise Vega20's uclk.
[Why]
When more than 2 displays are connected to the graphics card,
only the minimum memory clock is needed. However, when more
displays are connected, the minimum memory clock is not
sufficient enough to support the overwhelming bandwidth.
System will hang under this circumstance.

Also, the old code didn't address HBM cards, which has 2
pseudo channels. We need to add the HBM part here.

[How]
When graphics card connects to 2 or more displays,
switch to high memory clock. Also, choose memory
multiplier based on whether its regular DRAM or HBM.

Signed-off-by: Zhan Liu <zhan.liu@amd.com>
Reviewed-by: Roman Li <Roman.Li@amd.com>
Acked-by: Leo Li <sunpeng.li@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2019-09-17 14:36:33 -05:00
..
acp treewide: Add SPDX license identifier - Makefile/Kconfig 2019-05-21 10:50:46 +02:00
amdgpu drm/amdgpu: remove program of lbpw for renoir 2019-09-17 14:26:24 -05:00
amdkfd amd/amdkfd: add Arcturus vf DID support 2019-08-23 11:30:52 -05:00
display drm/amd/display: Add missing HBM support and raise Vega20's uclk. 2019-09-17 14:36:33 -05:00
include drm/amd/display: update renoir_ip_offset.h 2019-09-17 14:22:29 -05:00
powerplay drm/amdgpu: Add smu lock around in pp_smu_i2c_bus_access 2019-09-17 14:23:58 -05:00