diff options
| author | Trigger Huang <Trigger.Huang@amd.com> | 2019-05-06 15:27:23 +0800 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2019-05-24 12:20:51 -0500 |
| commit | c5d19419ed9cf8e3bc4190996ee95ea70b324737 (patch) | |
| tree | 14db91b05125d6d2ef987d3679ac9bec8856ae61 /drivers/gpu/drm/amd/amdgpu/amdgpu_psp.c | |
| parent | 3880369f6a8ee532849ed79f901ca32ff7511540 (diff) | |
drm/amdgpu: implement PSP cmd GFX_CMD_ID_PROG_REG
Add implementation to program regs by PSP, currently the following
IH registers are supported:
IH_RB_CNTL
IH_RB_CNTL_RING1
IH_RB_CNTL_RING2
Signed-off-by: Trigger Huang <Trigger.Huang@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers/gpu/drm/amd/amdgpu/amdgpu_psp.c')
| -rw-r--r-- | drivers/gpu/drm/amd/amdgpu/amdgpu_psp.c | 28 |
1 files changed, 28 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_psp.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_psp.c index 05897b05766b..c567a5586e8c 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_psp.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_psp.c @@ -289,6 +289,34 @@ static int psp_asd_load(struct psp_context *psp) return ret; } +static void psp_prep_reg_prog_cmd_buf(struct psp_gfx_cmd_resp *cmd, + uint32_t id, uint32_t value) +{ + cmd->cmd_id = GFX_CMD_ID_PROG_REG; + cmd->cmd.cmd_setup_reg_prog.reg_value = value; + cmd->cmd.cmd_setup_reg_prog.reg_id = id; +} + +int psp_reg_program(struct psp_context *psp, enum psp_reg_prog_id reg, + uint32_t value) +{ + struct psp_gfx_cmd_resp *cmd = NULL; + int ret = 0; + + if (reg >= PSP_REG_LAST) + return -EINVAL; + + cmd = kzalloc(sizeof(struct psp_gfx_cmd_resp), GFP_KERNEL); + if (!cmd) + return -ENOMEM; + + psp_prep_reg_prog_cmd_buf(cmd, reg, value); + ret = psp_cmd_submit_buf(psp, NULL, cmd, psp->fence_buf_mc_addr); + + kfree(cmd); + return ret; +} + static void psp_prep_xgmi_ta_load_cmd_buf(struct psp_gfx_cmd_resp *cmd, uint64_t xgmi_ta_mc, uint64_t xgmi_mc_shared, uint32_t xgmi_ta_size, uint32_t shared_size) |