static int xgpu_ai_send_access_requests(struct amdgpu_device *adev,
enum idh_request req)
{
int r;
xgpu_ai_mailbox_trans_msg(adev, req, 0, 0, 0);
/* start to check msg if request is idh_req_gpu_init_access */
if (req == IDH_REQ_GPU_INIT_ACCESS ||
req == IDH_REQ_GPU_FINI_ACCESS ||
req == IDH_REQ_GPU_RESET_ACCESS) {
r = xgpu_ai_poll_msg(adev, IDH_READY_TO_ACCESS_GPU);
if (r) {
pr_err("Doesn't get READY_TO_ACCESS_GPU from pf, give up\n");
return r;
}
/* Retrieve checksum from mailbox2 */
if (req == IDH_REQ_GPU_INIT_ACCESS || req == IDH_REQ_GPU_RESET_ACCESS) {
adev->virt.fw_reserve.checksum_key =
RREG32_NO_KIQ(SOC15_REG_OFFSET(NBIO, 0,
mmBIF_BX_PF0_MAILBOX_MSGBUF_RCV_DW2));
}
}
return 0;
}
static int xgpu_ai_force_dpm_level(struct amdgpu_device *adev, u32 level)
{
int r = 0;
u32 req = IDH_IRQ_FORCE_DPM_LEVEL;
if (!amdgim_is_hwperf(adev))
return -EBADRQC;
mutex_lock(&adev->virt.dpm_mutex);
xgpu_ai_mailbox_trans_msg(adev, req, level, 0, 0);
r = xgpu_ai_poll_msg(adev, IDH_SUCCESS);
if (!r)
goto out;
r = xgpu_ai_poll_msg(adev, IDH_FAIL);
if (!r)
pr_info("DPM request failed");
else
pr_info("Mailbox is broken");
out:
mutex_unlock(&adev->virt.dpm_mutex);
return r;
}
static int xgpu_ai_send_access_requests(struct amdgpu_device *adev,
enum idh_request req)
{
int r;
xgpu_ai_mailbox_trans_msg(adev, req);
/* start to poll ack */
r = xgpu_ai_poll_ack(adev);
if (r)
return r;
xgpu_ai_mailbox_set_valid(adev, false);
/* start to check msg if request is idh_req_gpu_init_access */
if (req == IDH_REQ_GPU_INIT_ACCESS ||
req == IDH_REQ_GPU_FINI_ACCESS ||
req == IDH_REQ_GPU_RESET_ACCESS) {
r = xgpu_ai_poll_msg(adev, IDH_READY_TO_ACCESS_GPU);
if (r)
return r;
}
return 0;
}
static int xgpu_ai_get_pp_clk(struct amdgpu_device *adev, u32 type, char *buf)
{
int r = 0;
u32 req, val, size;
if (!amdgim_is_hwperf(adev) || buf == NULL)
return -EBADRQC;
switch(type) {
case PP_SCLK:
req = IDH_IRQ_GET_PP_SCLK;
break;
case PP_MCLK:
req = IDH_IRQ_GET_PP_MCLK;
break;
default:
return -EBADRQC;
}
mutex_lock(&adev->virt.dpm_mutex);
xgpu_ai_mailbox_trans_msg(adev, req, 0, 0, 0);
r = xgpu_ai_poll_msg(adev, IDH_SUCCESS);
if (!r && adev->fw_vram_usage.va != NULL) {
val = RREG32_NO_KIQ(
SOC15_REG_OFFSET(NBIO, 0,
mmBIF_BX_PF0_MAILBOX_MSGBUF_RCV_DW1));
size = strnlen((((char *)adev->virt.fw_reserve.p_pf2vf) +
val), PAGE_SIZE);
if (size < PAGE_SIZE)
strcpy(buf,((char *)adev->virt.fw_reserve.p_pf2vf + val));
else
size = 0;
r = size;
goto out;
}
r = xgpu_ai_poll_msg(adev, IDH_FAIL);
if(r)
pr_info("%s DPM request failed",
(type == PP_SCLK)? "SCLK" : "MCLK");
out:
mutex_unlock(&adev->virt.dpm_mutex);
return r;
}