diff options
| author | Victor Skvortsov <[email protected]> | 2025-03-27 15:38:42 +0000 |
|---|---|---|
| committer | Alex Deucher <[email protected]> | 2025-04-07 19:18:58 +0000 |
| commit | 0c6e39ce6da20104900b11bad64464a12fb47320 (patch) | |
| tree | b206cfafc7de7cf69f21ef19e0fa544a81792732 /drivers/gpu/drm/amd/amdgpu/psp_v13_0.c | |
| parent | drm/amdgpu/gfx12: Implement the gfx12 kgq pipe reset (diff) | |
| download | kernel-0c6e39ce6da20104900b11bad64464a12fb47320.tar.gz kernel-0c6e39ce6da20104900b11bad64464a12fb47320.zip | |
drm/amdgpu: Add indirect L1_TLB_CNTL reg programming for VFs
VFs on some IP versions are unable to access this register directly.
This register must be programmed before PSP ring is setup,
so use PSP VF mailbox directly. PSP will broadcast the register
value to all VF assigned instances.
Signed-off-by: Victor Skvortsov <[email protected]>
Reviewed-by: Zhigang Luo <[email protected]>
Signed-off-by: Alex Deucher <[email protected]>
Diffstat (limited to 'drivers/gpu/drm/amd/amdgpu/psp_v13_0.c')
| -rw-r--r-- | drivers/gpu/drm/amd/amdgpu/psp_v13_0.c | 20 |
1 files changed, 20 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/psp_v13_0.c b/drivers/gpu/drm/amd/amdgpu/psp_v13_0.c index cc621064610f..17f1ccd8bd53 100644 --- a/drivers/gpu/drm/amd/amdgpu/psp_v13_0.c +++ b/drivers/gpu/drm/amd/amdgpu/psp_v13_0.c @@ -858,6 +858,25 @@ static bool psp_v13_0_is_reload_needed(struct psp_context *psp) return false; } +static int psp_v13_0_reg_program_no_ring(struct psp_context *psp, uint32_t val, + enum psp_reg_prog_id id) +{ + struct amdgpu_device *adev = psp->adev; + int ret = -EOPNOTSUPP; + + /* PSP will broadcast the value to all instances */ + if (amdgpu_sriov_vf(adev)) { + WREG32_SOC15(MP0, 0, regMP0_SMN_C2PMSG_101, GFX_CTRL_CMD_ID_GBR_IH_SET); + WREG32_SOC15(MP0, 0, regMP0_SMN_C2PMSG_102, id); + WREG32_SOC15(MP0, 0, regMP0_SMN_C2PMSG_103, val); + + ret = psp_wait_for(psp, SOC15_REG_OFFSET(MP0, 0, regMP0_SMN_C2PMSG_101), + 0x80000000, 0x80000000, false); + } + + return ret; +} + static const struct psp_funcs psp_v13_0_funcs = { .init_microcode = psp_v13_0_init_microcode, .wait_for_bootloader = psp_v13_0_wait_for_bootloader_steady_state, @@ -884,6 +903,7 @@ static const struct psp_funcs psp_v13_0_funcs = { .get_ras_capability = psp_v13_0_get_ras_capability, .is_aux_sos_load_required = psp_v13_0_is_aux_sos_load_required, .is_reload_needed = psp_v13_0_is_reload_needed, + .reg_program_no_ring = psp_v13_0_reg_program_no_ring, }; void psp_v13_0_set_psp_funcs(struct psp_context *psp) |