UbiquitousOS
/
OpenCloudOS-Kernel
mirror of https://gitee.com/OpenCloudOS/OpenCloudOS-Kernel.git
11
0
Fork 0
Code Issues Projects Releases Wiki Activity

drm/amd/amdgpu: fix the HDP LS/DS/SD programming 

confirmed that IPH_MEM_POWER_CTRL_EN and RC_MEM_POWER_CTRL_EN
have to be set for SRAM LS/DS/SD

Signed-off-by: Kenneth Feng <kenneth.feng@amd.com>
Reviewed-by: Likun Gao <Likun.Gao@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Kenneth Feng 2020-02-28 11:57:04 +08:00 committed by Alex Deucher
parent 850e56ba44
commit 91c6adf873
1 changed files with 10 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

10
drivers/gpu/drm/amd/amdgpu/nv.c
View File

@ -889,6 +889,16 @@ static void nv_update_hdp_mem_power_gating(struct amdgpu_device *adev,
RC_MEM_POWER_DS_EN, enable);
}
/* confirmed that IPH_MEM_POWER_CTRL_EN and RC_MEM_POWER_CTRL_EN have to
* be set for SRAM LS/DS/SD */
if (adev->cg_flags & (AMD_CG_SUPPORT_HDP_LS | AMD_CG_SUPPORT_HDP_DS |
AMD_CG_SUPPORT_HDP_SD)) {
hdp_mem_pwr_cntl = REG_SET_FIELD(hdp_mem_pwr_cntl, HDP_MEM_POWER_CTRL,
IPH_MEM_POWER_CTRL_EN, 1);
hdp_mem_pwr_cntl = REG_SET_FIELD(hdp_mem_pwr_cntl, HDP_MEM_POWER_CTRL,
RC_MEM_POWER_CTRL_EN, 1);
}
WREG32_SOC15(HDP, 0, mmHDP_MEM_POWER_CTRL, hdp_mem_pwr_cntl);
/* restore IPH & RC clock override after clock/power mode changing */