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drm/amdgpu: access RLC_SPM_MC_CNTL through MMIO in SRIOV runtime

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Register RLC_SPM_MC_CNTL is not blocked by L1 policy, VF can
directly access it through MMIO during SRIOV runtime.

v2: use SOC15 interface to access registers

Acked-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: ZhenGuo Yin <zhenguo.yin@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
ZhenGuo Yin
2023-08-28 14:18:52 +08:00
committed by Alex Deucher
parent 668dfc4533
commit 9f05cfc78c
2 changed files with 6 additions and 20 deletions
Download Patch File Download Diff File Expand all files Collapse all files

13
drivers/gpu/drm/amd/amdgpu/gfx_v10_0.c
View File

@ -7897,22 +7897,15 @@ static int gfx_v10_0_update_gfx_clock_gating(struct amdgpu_device *adev,
static void gfx_v10_0_update_spm_vmid_internal(struct amdgpu_device *adev,
unsigned int vmid)
{
u32 reg, data;
u32 data;
/* not for *_SOC15 */
reg = SOC15_REG_OFFSET(GC, 0, mmRLC_SPM_MC_CNTL);
if (amdgpu_sriov_is_pp_one_vf(adev))
data = RREG32_NO_KIQ(reg);
else
data = RREG32_SOC15(GC, 0, mmRLC_SPM_MC_CNTL);
data = RREG32_SOC15_NO_KIQ(GC, 0, mmRLC_SPM_MC_CNTL);
data &= ~RLC_SPM_MC_CNTL__RLC_SPM_VMID_MASK;
data |= (vmid & RLC_SPM_MC_CNTL__RLC_SPM_VMID_MASK) << RLC_SPM_MC_CNTL__RLC_SPM_VMID__SHIFT;
if (amdgpu_sriov_is_pp_one_vf(adev))
WREG32_SOC15_NO_KIQ(GC, 0, mmRLC_SPM_MC_CNTL, data);
else
WREG32_SOC15(GC, 0, mmRLC_SPM_MC_CNTL, data);
WREG32_SOC15_NO_KIQ(GC, 0, mmRLC_SPM_MC_CNTL, data);
}
static void gfx_v10_0_update_spm_vmid(struct amdgpu_device *adev, unsigned int vmid)

13
drivers/gpu/drm/amd/amdgpu/gfx_v11_0.c
View File

@ -4984,23 +4984,16 @@ static int gfx_v11_0_update_gfx_clock_gating(struct amdgpu_device *adev,
static void gfx_v11_0_update_spm_vmid(struct amdgpu_device *adev, unsigned vmid)
{
u32 reg, data;
u32 data;
amdgpu_gfx_off_ctrl(adev, false);
reg = SOC15_REG_OFFSET(GC, 0, regRLC_SPM_MC_CNTL);
if (amdgpu_sriov_is_pp_one_vf(adev))
data = RREG32_NO_KIQ(reg);
else
data = RREG32(reg);
data = RREG32_SOC15_NO_KIQ(GC, 0, regRLC_SPM_MC_CNTL);
data &= ~RLC_SPM_MC_CNTL__RLC_SPM_VMID_MASK;
data |= (vmid & RLC_SPM_MC_CNTL__RLC_SPM_VMID_MASK) << RLC_SPM_MC_CNTL__RLC_SPM_VMID__SHIFT;
if (amdgpu_sriov_is_pp_one_vf(adev))
WREG32_SOC15_NO_KIQ(GC, 0, regRLC_SPM_MC_CNTL, data);
else
WREG32_SOC15(GC, 0, regRLC_SPM_MC_CNTL, data);
WREG32_SOC15_NO_KIQ(GC, 0, regRLC_SPM_MC_CNTL, data);
amdgpu_gfx_off_ctrl(adev, true);
}