diff options
| author | Jane Jian <Jane.Jian@amd.com> | 2024-05-11 14:39:34 +0800 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2024-05-23 15:11:31 -0400 |
| commit | f889f9c68bcc2da0286ee22a566ed07d16b509d9 (patch) | |
| tree | a7cc487fc5b9fc26c88cd116b3a2a11b67ba0fa8 /drivers/gpu/drm/amd/amdgpu/gfx_v11_0.c | |
| parent | 0b6dc64b4e2254a8aa6318116f684ffb440a6e4c (diff) | |
drm/amdgpu - optimize rlc spm cntl
v1
- driver MMIO read the register to check whether write is required
- if write is required, sriov full time to use rlcg, otherwise use KIQ
v2
- include gfx v11 sriov runtime case
Signed-off-by: Jane Jian <Jane.Jian@amd.com>
Acked-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers/gpu/drm/amd/amdgpu/gfx_v11_0.c')
| -rw-r--r-- | drivers/gpu/drm/amd/amdgpu/gfx_v11_0.c | 21 |
1 files changed, 14 insertions, 7 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/gfx_v11_0.c b/drivers/gpu/drm/amd/amdgpu/gfx_v11_0.c index ad6431013c73..e5882da8332a 100644 --- a/drivers/gpu/drm/amd/amdgpu/gfx_v11_0.c +++ b/drivers/gpu/drm/amd/amdgpu/gfx_v11_0.c @@ -5030,24 +5030,31 @@ 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, struct amdgpu_ring *ring, unsigned vmid) { - u32 data; + u32 reg, pre_data, 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) && !amdgpu_sriov_runtime(adev)) + pre_data = RREG32_NO_KIQ(reg); + else + pre_data = RREG32(reg); - data = RREG32_SOC15_NO_KIQ(GC, 0, regRLC_SPM_MC_CNTL); - - data &= ~RLC_SPM_MC_CNTL__RLC_SPM_VMID_MASK; + data = pre_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; - WREG32_SOC15_NO_KIQ(GC, 0, regRLC_SPM_MC_CNTL, data); - + if (pre_data != data) { + if (amdgpu_sriov_is_pp_one_vf(adev) && !amdgpu_sriov_runtime(adev)) { + WREG32_SOC15_NO_KIQ(GC, 0, regRLC_SPM_MC_CNTL, data); + } else + WREG32_SOC15(GC, 0, regRLC_SPM_MC_CNTL, data); + } amdgpu_gfx_off_ctrl(adev, true); if (ring && amdgpu_sriov_is_pp_one_vf(adev) + && (pre_data != data) && ((ring->funcs->type == AMDGPU_RING_TYPE_GFX) || (ring->funcs->type == AMDGPU_RING_TYPE_COMPUTE))) { - uint32_t reg = SOC15_REG_OFFSET(GC, 0, regRLC_SPM_MC_CNTL); amdgpu_ring_emit_wreg(ring, reg, data); } } |