[AMD Public Use] The hash is 5ea6f9c
Rohit -----Original Message----- From: Koenig, Christian <[email protected]> Sent: June 7, 2021 11:58 AM To: Khaire, Rohit <[email protected]>; [email protected]; Deucher, Alexander <[email protected]>; Zhang, Hawking <[email protected]>; Deng, Emily <[email protected]>; Liu, Monk <[email protected]>; Zhou, Peng Ju <[email protected]>; Chen, Horace <[email protected]> Cc: Ming, Davis <[email protected]> Subject: Re: [PATCH] drm/amdgpu: Use PSP to program IH_RB_CNTL_RING1/2 on SRIOV Do you have the hash for this commit? Thanks, Christian. Am 07.06.21 um 17:30 schrieb Khaire, Rohit: > [AMD Public Use] > > We don't need RING1 and RING2 functionality for SRIOV afaik. > > But looking at the description of the original commit message it affects > RING0 too? > > " drm/amdgpu: add timeout flush mechanism to update wptr for self > interrupt (v2) > > outstanding log reaches threshold will trigger IH ring1/2's wptr > reported, that will avoid generating interrupts to ring0 too frequent. > But if ring1/2's wptr hasn't been increased for a long time, the > outstanding log can't reach threshold so that driver can't get latest > wptr info and miss some interrupts." > > Rohit > > -----Original Message----- > From: Koenig, Christian <[email protected]> > Sent: June 7, 2021 10:31 AM > To: Khaire, Rohit <[email protected]>; > [email protected]; Deucher, Alexander > <[email protected]>; Zhang, Hawking <[email protected]>; > Deng, Emily <[email protected]>; Liu, Monk <[email protected]>; Zhou, > Peng Ju <[email protected]>; Chen, Horace <[email protected]> > Cc: Ming, Davis <[email protected]> > Subject: Re: [PATCH] drm/amdgpu: Use PSP to program IH_RB_CNTL_RING1/2 > on SRIOV > > Why are the ring 1&2 enabled on SRIOV in the first place? > > Christian. > > Am 07.06.21 um 16:23 schrieb Rohit Khaire: >> This is similar to IH_RB_CNTL programming in >> navi10_ih_toggle_ring_interrupts >> >> Signed-off-by: Rohit Khaire <[email protected]> >> --- >> drivers/gpu/drm/amd/amdgpu/navi10_ih.c | 20 ++++++++++++++++++-- >> 1 file changed, 18 insertions(+), 2 deletions(-) >> >> diff --git a/drivers/gpu/drm/amd/amdgpu/navi10_ih.c >> b/drivers/gpu/drm/amd/amdgpu/navi10_ih.c >> index eac564e8dd52..e41188c04846 100644 >> --- a/drivers/gpu/drm/amd/amdgpu/navi10_ih.c >> +++ b/drivers/gpu/drm/amd/amdgpu/navi10_ih.c >> @@ -120,11 +120,27 @@ force_update_wptr_for_self_int(struct amdgpu_device >> *adev, >> ih_rb_cntl = REG_SET_FIELD(ih_rb_cntl, IH_RB_CNTL_RING1, >> RB_USED_INT_THRESHOLD, threshold); >> >> - WREG32_SOC15(OSSSYS, 0, mmIH_RB_CNTL_RING1, ih_rb_cntl); >> + if (amdgpu_sriov_vf(adev) && amdgpu_sriov_reg_indirect_ih(adev)) { >> + if (psp_reg_program(&adev->psp, PSP_REG_IH_RB_CNTL_RING1, >> ih_rb_cntl)) { >> + DRM_ERROR("PSP program IH_RB_CNTL_RING1 failed!\n"); >> + return; >> + } >> + } else { >> + WREG32_SOC15(OSSSYS, 0, mmIH_RB_CNTL_RING1, ih_rb_cntl); >> + } >> + >> ih_rb_cntl = RREG32_SOC15(OSSSYS, 0, mmIH_RB_CNTL_RING2); >> ih_rb_cntl = REG_SET_FIELD(ih_rb_cntl, IH_RB_CNTL_RING2, >> RB_USED_INT_THRESHOLD, threshold); >> - WREG32_SOC15(OSSSYS, 0, mmIH_RB_CNTL_RING2, ih_rb_cntl); >> + if (amdgpu_sriov_vf(adev) && amdgpu_sriov_reg_indirect_ih(adev)) { >> + if (psp_reg_program(&adev->psp, PSP_REG_IH_RB_CNTL_RING2, >> ih_rb_cntl)) { >> + DRM_ERROR("PSP program IH_RB_CNTL_RING2 failed!\n"); >> + return; >> + } >> + } else { >> + WREG32_SOC15(OSSSYS, 0, mmIH_RB_CNTL_RING2, ih_rb_cntl); >> + } >> + >> WREG32_SOC15(OSSSYS, 0, mmIH_CNTL2, ih_cntl); >> } >> _______________________________________________ amd-gfx mailing list [email protected] https://lists.freedesktop.org/mailman/listinfo/amd-gfx
