static void xgpu_ai_mailbox_send_ack(struct amdgpu_device *adev)
{
u32 reg;
int timeout = AI_MAILBOX_TIMEDOUT;
u32 mask = REG_FIELD_MASK(BIF_BX_PF0_MAILBOX_CONTROL, RCV_MSG_VALID);
reg = RREG32_NO_KIQ(SOC15_REG_OFFSET(NBIO, 0,
mmBIF_BX_PF0_MAILBOX_CONTROL));
reg = REG_SET_FIELD(reg, BIF_BX_PF0_MAILBOX_CONTROL, RCV_MSG_ACK, 1);
WREG32_NO_KIQ(SOC15_REG_OFFSET(NBIO, 0,
mmBIF_BX_PF0_MAILBOX_CONTROL), reg);
/*Wait for RCV_MSG_VALID to be 0*/
reg = RREG32_NO_KIQ(SOC15_REG_OFFSET(NBIO, 0,
mmBIF_BX_PF0_MAILBOX_CONTROL));
while (reg & mask) {
if (timeout <= 0) {
pr_err("RCV_MSG_VALID is not cleared\n");
break;
}
mdelay(1);
timeout -=1;
reg = RREG32_NO_KIQ(SOC15_REG_OFFSET(NBIO, 0,
mmBIF_BX_PF0_MAILBOX_CONTROL));
}
}
static void xgpu_ai_mailbox_trans_msg (struct amdgpu_device *adev,
enum idh_request req, u32 data1, u32 data2, u32 data3) {
u32 reg;
int r;
reg = RREG32_NO_KIQ(SOC15_REG_OFFSET(NBIO, 0,
mmBIF_BX_PF0_MAILBOX_MSGBUF_TRN_DW0));
reg = REG_SET_FIELD(reg, BIF_BX_PF0_MAILBOX_MSGBUF_TRN_DW0,
MSGBUF_DATA, req);
WREG32_NO_KIQ(SOC15_REG_OFFSET(NBIO, 0, mmBIF_BX_PF0_MAILBOX_MSGBUF_TRN_DW0),
reg);
WREG32_NO_KIQ(SOC15_REG_OFFSET(NBIO, 0, mmBIF_BX_PF0_MAILBOX_MSGBUF_TRN_DW1),
data1);
WREG32_NO_KIQ(SOC15_REG_OFFSET(NBIO, 0, mmBIF_BX_PF0_MAILBOX_MSGBUF_TRN_DW2),
data2);
WREG32_NO_KIQ(SOC15_REG_OFFSET(NBIO, 0, mmBIF_BX_PF0_MAILBOX_MSGBUF_TRN_DW3),
data3);
xgpu_ai_mailbox_set_valid(adev, true);
/* start to poll ack */
r = xgpu_ai_poll_ack(adev);
if (r)
pr_err("Doesn't get ack from pf, continue\n");
xgpu_ai_mailbox_set_valid(adev, false);
}
bool amdgpu_virt_mmio_blocked(struct amdgpu_device *adev)
{
/* By now all MMIO pages except mailbox are blocked */
/* if blocking is enabled in hypervisor. Choose the */
/* SCRATCH_REG0 to test. */
return RREG32_NO_KIQ(0xc040) == 0xffffffff;
}
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 void xgpu_vi_mailbox_set_valid(struct amdgpu_device *adev, bool val)
{
u32 reg;
reg = RREG32_NO_KIQ(mmMAILBOX_CONTROL);
reg = REG_SET_FIELD(reg, MAILBOX_CONTROL,
TRN_MSG_VALID, val ? 1 : 0);
WREG32_NO_KIQ(mmMAILBOX_CONTROL, reg);
}
/**
* gmc_v9_0_flush_gpu_tlb - gart tlb flush callback
*
* @adev: amdgpu_device pointer
* @vmid: vm instance to flush
*
* Flush the TLB for the requested page table.
*/
static void gmc_v9_0_flush_gpu_tlb(struct amdgpu_device *adev,
uint32_t vmid)
{
/* Use register 17 for GART */
const unsigned eng = 17;
unsigned i, j;
spin_lock(&adev->gmc.invalidate_lock);
for (i = 0; i < AMDGPU_MAX_VMHUBS; ++i) {
struct amdgpu_vmhub *hub = &adev->vmhub[i];
u32 tmp = gmc_v9_0_get_invalidate_req(vmid);
WREG32_NO_KIQ(hub->vm_inv_eng0_req + eng, tmp);
/* Busy wait for ACK.*/
for (j = 0; j < 100; j++) {
tmp = RREG32_NO_KIQ(hub->vm_inv_eng0_ack + eng);
tmp &= 1 << vmid;
if (tmp)
break;
cpu_relax();
}
if (j < 100)
continue;
/* Wait for ACK with a delay.*/
for (j = 0; j < adev->usec_timeout; j++) {
tmp = RREG32_NO_KIQ(hub->vm_inv_eng0_ack + eng);
tmp &= 1 << vmid;
if (tmp)
break;
udelay(1);
}
if (j < adev->usec_timeout)
continue;
DRM_ERROR("Timeout waiting for VM flush ACK!\n");
}
spin_unlock(&adev->gmc.invalidate_lock);
}
static void xgpu_ai_mailbox_set_valid(struct amdgpu_device *adev, bool val)
{
u32 reg;
reg = RREG32_NO_KIQ(SOC15_REG_OFFSET(NBIO, 0,
mmBIF_BX_PF0_MAILBOX_CONTROL));
reg = REG_SET_FIELD(reg, BIF_BX_PF0_MAILBOX_CONTROL,
TRN_MSG_VALID, val ? 1 : 0);
WREG32_NO_KIQ(SOC15_REG_OFFSET(NBIO, 0, mmBIF_BX_PF0_MAILBOX_CONTROL),
reg);
}
static int xgpu_vi_poll_ack(struct amdgpu_device *adev)
{
int r = 0, timeout = VI_MAILBOX_TIMEDOUT;
u32 mask = REG_FIELD_MASK(MAILBOX_CONTROL, TRN_MSG_ACK);
u32 reg;
reg = RREG32_NO_KIQ(mmMAILBOX_CONTROL);
while (!(reg & mask)) {
if (timeout <= 0) {
pr_err("Doesn't get ack from pf.\n");
r = -ETIME;
break;
}
mdelay(5);
timeout -= 5;
reg = RREG32_NO_KIQ(mmMAILBOX_CONTROL);
}
return r;
}
static void xgpu_vi_mailbox_trans_msg(struct amdgpu_device *adev,
enum idh_request req)
{
u32 reg;
reg = RREG32_NO_KIQ(mmMAILBOX_MSGBUF_TRN_DW0);
reg = REG_SET_FIELD(reg, MAILBOX_MSGBUF_TRN_DW0,
MSGBUF_DATA, req);
WREG32_NO_KIQ(mmMAILBOX_MSGBUF_TRN_DW0, reg);
xgpu_vi_mailbox_set_valid(adev, true);
}
static int xgpu_ai_set_mailbox_rcv_irq(struct amdgpu_device *adev,
struct amdgpu_irq_src *src,
unsigned type,
enum amdgpu_interrupt_state state)
{
u32 tmp = RREG32_NO_KIQ(SOC15_REG_OFFSET(NBIO, 0, mmBIF_BX_PF0_MAILBOX_INT_CNTL));
tmp = REG_SET_FIELD(tmp, BIF_BX_PF0_MAILBOX_INT_CNTL, VALID_INT_EN,
(state == AMDGPU_IRQ_STATE_ENABLE) ? 1 : 0);
WREG32_NO_KIQ(SOC15_REG_OFFSET(NBIO, 0, mmBIF_BX_PF0_MAILBOX_INT_CNTL), tmp);
return 0;
}
static int xgpu_vi_set_mailbox_rcv_irq(struct amdgpu_device *adev,
struct amdgpu_irq_src *src,
unsigned type,
enum amdgpu_interrupt_state state)
{
u32 tmp = RREG32_NO_KIQ(mmMAILBOX_INT_CNTL);
tmp = REG_SET_FIELD(tmp, MAILBOX_INT_CNTL, VALID_INT_EN,
(state == AMDGPU_IRQ_STATE_ENABLE) ? 1 : 0);
WREG32_NO_KIQ(mmMAILBOX_INT_CNTL, tmp);
return 0;
}
static int xgpu_vi_mailbox_rcv_msg(struct amdgpu_device *adev,
enum idh_event event)
{
u32 reg;
u32 mask = REG_FIELD_MASK(MAILBOX_CONTROL, RCV_MSG_VALID);
/* workaround: host driver doesn't set VALID for CMPL now */
if (event != IDH_FLR_NOTIFICATION_CMPL) {
reg = RREG32_NO_KIQ(mmMAILBOX_CONTROL);
if (!(reg & mask))
return -ENOENT;
}
reg = RREG32_NO_KIQ(mmMAILBOX_MSGBUF_RCV_DW0);
if (reg != event)
return -ENOENT;
/* send ack to PF */
xgpu_vi_mailbox_send_ack(adev);
return 0;
}
static int xgpu_ai_mailbox_rcv_msg(struct amdgpu_device *adev,
enum idh_event event)
{
u32 reg;
u32 mask = REG_FIELD_MASK(BIF_BX_PF0_MAILBOX_CONTROL, RCV_MSG_VALID);
if (event != IDH_FLR_NOTIFICATION_CMPL) {
reg = RREG32_NO_KIQ(SOC15_REG_OFFSET(NBIO, 0,
mmBIF_BX_PF0_MAILBOX_CONTROL));
if (!(reg & mask))
return -ENOENT;
}
reg = RREG32_NO_KIQ(SOC15_REG_OFFSET(NBIO, 0,
mmBIF_BX_PF0_MAILBOX_MSGBUF_RCV_DW0));
if (reg != event)
return -ENOENT;
xgpu_ai_mailbox_send_ack(adev);
return 0;
}
static void xgpu_ai_mailbox_trans_msg(struct amdgpu_device *adev,
enum idh_request req)
{
u32 reg;
reg = RREG32_NO_KIQ(SOC15_REG_OFFSET(NBIO, 0,
mmBIF_BX_PF0_MAILBOX_MSGBUF_TRN_DW0));
reg = REG_SET_FIELD(reg, BIF_BX_PF0_MAILBOX_MSGBUF_TRN_DW0,
MSGBUF_DATA, req);
WREG32_NO_KIQ(SOC15_REG_OFFSET(NBIO, 0, mmBIF_BX_PF0_MAILBOX_MSGBUF_TRN_DW0),
reg);
xgpu_ai_mailbox_set_valid(adev, true);
}
static int xgpu_ai_mailbox_rcv_msg(struct amdgpu_device *adev,
enum idh_event event)
{
u32 reg;
reg = RREG32_NO_KIQ(SOC15_REG_OFFSET(NBIO, 0,
mmBIF_BX_PF0_MAILBOX_MSGBUF_RCV_DW0));
if (reg != event)
return -ENOENT;
xgpu_ai_mailbox_send_ack(adev);
return 0;
}
static int xgpu_ai_poll_ack(struct amdgpu_device *adev)
{
int r = 0, timeout = AI_MAILBOX_TIMEDOUT;
u32 mask = REG_FIELD_MASK(BIF_BX_PF0_MAILBOX_CONTROL, TRN_MSG_ACK);
u32 reg;
reg = RREG32_NO_KIQ(SOC15_REG_OFFSET(NBIO, 0,
mmBIF_BX_PF0_MAILBOX_CONTROL));
while (!(reg & mask)) {
if (timeout <= 0) {
pr_err("Doesn't get ack from pf.\n");
r = -ETIME;
break;
}
msleep(1);
timeout -= 1;
reg = RREG32_NO_KIQ(SOC15_REG_OFFSET(NBIO, 0,
mmBIF_BX_PF0_MAILBOX_CONTROL));
}
return r;
}
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;
}
static void xgpu_ai_mailbox_trans_msg (struct amdgpu_device *adev,
enum idh_request req, u32 data1, u32 data2, u32 data3) {
u32 reg;
int r;
uint8_t trn;
/* IMPORTANT:
* clear TRN_MSG_VALID valid to clear host's RCV_MSG_ACK
* and with host's RCV_MSG_ACK cleared hw automatically clear host's RCV_MSG_ACK
* which lead to VF's TRN_MSG_ACK cleared, otherwise below xgpu_ai_poll_ack()
* will return immediatly
*/
do {
xgpu_ai_mailbox_set_valid(adev, false);
trn = xgpu_ai_peek_ack(adev);
if (trn) {
pr_err("trn=%x ACK should not assert! wait again !\n", trn);
msleep(1);
}
} while(trn);
reg = RREG32_NO_KIQ(SOC15_REG_OFFSET(NBIO, 0,
mmBIF_BX_PF0_MAILBOX_MSGBUF_TRN_DW0));
reg = REG_SET_FIELD(reg, BIF_BX_PF0_MAILBOX_MSGBUF_TRN_DW0,
MSGBUF_DATA, req);
WREG32_NO_KIQ(SOC15_REG_OFFSET(NBIO, 0, mmBIF_BX_PF0_MAILBOX_MSGBUF_TRN_DW0),
reg);
WREG32_NO_KIQ(SOC15_REG_OFFSET(NBIO, 0, mmBIF_BX_PF0_MAILBOX_MSGBUF_TRN_DW1),
data1);
WREG32_NO_KIQ(SOC15_REG_OFFSET(NBIO, 0, mmBIF_BX_PF0_MAILBOX_MSGBUF_TRN_DW2),
data2);
WREG32_NO_KIQ(SOC15_REG_OFFSET(NBIO, 0, mmBIF_BX_PF0_MAILBOX_MSGBUF_TRN_DW3),
data3);
xgpu_ai_mailbox_set_valid(adev, true);
/* start to poll ack */
r = xgpu_ai_poll_ack(adev);
if (r)
pr_err("Doesn't get ack from pf, continue\n");
xgpu_ai_mailbox_set_valid(adev, false);
}
/*
* this peek_msg could *only* be called in IRQ routine becuase in IRQ routine
* RCV_MSG_VALID filed of BIF_BX_PF0_MAILBOX_CONTROL must already be set to 1
* by host.
*
* if called no in IRQ routine, this peek_msg cannot guaranteed to return the
* correct value since it doesn't return the RCV_DW0 under the case that
* RCV_MSG_VALID is set by host.
*/
static enum idh_event xgpu_ai_mailbox_peek_msg(struct amdgpu_device *adev)
{
return RREG32_NO_KIQ(SOC15_REG_OFFSET(NBIO, 0,
mmBIF_BX_PF0_MAILBOX_MSGBUF_RCV_DW0));
}
