/*
* Copyright 2014 Advanced Micro Devices , Inc .
*
* Permission is hereby granted , free of charge , to any person obtaining a
* copy of this software and associated documentation files ( the " Software " ) ,
* to deal in the Software without restriction , including without limitation
* the rights to use , copy , modify , merge , publish , distribute , sublicense ,
* and / or sell copies of the Software , and to permit persons to whom the
* Software is furnished to do so , subject to the following conditions :
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software .
*
* THE SOFTWARE IS PROVIDED " AS IS " , WITHOUT WARRANTY OF ANY KIND , EXPRESS OR
* IMPLIED , INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY ,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT . IN NO EVENT SHALL
* THE COPYRIGHT HOLDER ( S ) OR AUTHOR ( S ) BE LIABLE FOR ANY CLAIM , DAMAGES OR
* OTHER LIABILITY , WHETHER IN AN ACTION OF CONTRACT , TORT OR OTHERWISE ,
* ARISING FROM , OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
* OTHER DEALINGS IN THE SOFTWARE .
*
*/
#include "amdgpu.h"
#include "nbio/nbio_2_3_offset.h"
#include "nbio/nbio_2_3_sh_mask.h"
#include "gc/gc_10_1_0_offset.h"
#include "gc/gc_10_1_0_sh_mask.h"
#include "soc15.h"
#include "navi10_ih.h"
#include "soc15_common.h"
#include "mxgpu_nv.h"
#include "amdgpu_reset.h"
static void xgpu_nv_mailbox_send_ack(struct amdgpu_device *adev)
{
WREG8(NV_MAIBOX_CONTROL_RCV_OFFSET_BYTE, 2 );
}
static void xgpu_nv_mailbox_set_valid(struct amdgpu_device *adev, bool val)
{
WREG8(NV_MAIBOX_CONTROL_TRN_OFFSET_BYTE, val ? 1 : 0 );
}
/*
* this peek_msg could * only * be called in IRQ routine becuase in IRQ routine
* RCV_MSG_VALID filed of BIF_BX_PF_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_nv_mailbox_peek_msg(struct amdgpu_device *adev)
{
return RREG32_NO_KIQ(mmMAILBOX_MSGBUF_RCV_DW0);
}
static int xgpu_nv_mailbox_rcv_msg(struct amdgpu_device *adev,
enum idh_event event)
{
int r = 0 ;
u32 reg;
reg = RREG32_NO_KIQ(mmMAILBOX_MSGBUF_RCV_DW0);
if (reg == IDH_FAIL)
r = -EINVAL;
if (reg == IDH_UNRECOV_ERR_NOTIFICATION)
r = -ENODEV;
else if (reg != event)
return -ENOENT;
xgpu_nv_mailbox_send_ack(adev);
return r;
}
static uint8_t xgpu_nv_peek_ack(struct amdgpu_device *adev)
{
return RREG8(NV_MAIBOX_CONTROL_TRN_OFFSET_BYTE) & 2 ;
}
static int xgpu_nv_poll_ack(struct amdgpu_device *adev)
{
int timeout = NV_MAILBOX_POLL_ACK_TIMEDOUT;
u8 reg;
do {
reg = RREG8(NV_MAIBOX_CONTROL_TRN_OFFSET_BYTE);
if (reg & 2 )
return 0 ;
mdelay(5 );
timeout -= 5 ;
} while (timeout > 1 );
dev_err(adev->dev, "Doesn't get TRN_MSG_ACK from pf in %d msec \n" , NV_MAILBOX_POLL_ACK_TIMEDOUT);
return -ETIME;
}
static int xgpu_nv_poll_msg(struct amdgpu_device *adev, enum idh_event event)
{
int r;
uint64_t timeout, now;
struct amdgpu_ras *ras = amdgpu_ras_get_context(adev);
now = (uint64_t)ktime_to_ms(ktime_get());
timeout = now + NV_MAILBOX_POLL_MSG_TIMEDOUT;
do {
r = xgpu_nv_mailbox_rcv_msg(adev, event);
if (!r) {
dev_dbg(adev->dev, "rcv_msg 0x%x after %llu ms\n" ,
event, NV_MAILBOX_POLL_MSG_TIMEDOUT - timeout + now);
return 0 ;
} else if (r == -ENODEV) {
if (!amdgpu_ras_is_rma(adev)) {
ras->is_rma = true ;
dev_err(adev->dev, "VF is in an unrecoverable state. "
"Runtime Services are halted.\n" );
}
return r;
}
msleep(10 );
now = (uint64_t)ktime_to_ms(ktime_get());
} while (timeout > now);
dev_dbg(adev->dev, "nv_poll_msg timed out\n" );
return -ETIME;
}
static void xgpu_nv_mailbox_trans_msg (struct amdgpu_device *adev,
enum idh_request req, u32 data1, u32 data2, u32 data3)
{
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_nv_poll_ack ( )
* will return immediatly
*/
do {
xgpu_nv_mailbox_set_valid(adev, false );
trn = xgpu_nv_peek_ack(adev);
if (trn) {
dev_err_ratelimited(adev->dev, "trn=%x ACK should not assert! wait again !\n" , trn);
msleep(1 );
}
} while (trn);
dev_dbg(adev->dev, "trans_msg req = 0x%x, data1 = 0x%x\n" , req, data1);
WREG32_NO_KIQ(mmMAILBOX_MSGBUF_TRN_DW0, req);
WREG32_NO_KIQ(mmMAILBOX_MSGBUF_TRN_DW1, data1);
WREG32_NO_KIQ(mmMAILBOX_MSGBUF_TRN_DW2, data2);
WREG32_NO_KIQ(mmMAILBOX_MSGBUF_TRN_DW3, data3);
xgpu_nv_mailbox_set_valid(adev, true );
/* start to poll ack */
r = xgpu_nv_poll_ack(adev);
if (r)
dev_err(adev->dev, "Doesn't get ack from pf, continue\n" );
xgpu_nv_mailbox_set_valid(adev, false );
}
static int xgpu_nv_send_access_requests_with_param(struct amdgpu_device *adev,
enum idh_request req, u32 data1, u32 data2, u32 data3)
{
int r, retry = 1 ;
enum idh_event event = -1 ;
send_request:
if (amdgpu_ras_is_rma(adev))
return -ENODEV;
xgpu_nv_mailbox_trans_msg(adev, req, data1, data2, data3);
switch (req) {
case IDH_REQ_GPU_INIT_ACCESS:
case IDH_REQ_GPU_FINI_ACCESS:
case IDH_REQ_GPU_RESET_ACCESS:
event = IDH_READY_TO_ACCESS_GPU;
break ;
case IDH_REQ_GPU_INIT_DATA:
event = IDH_REQ_GPU_INIT_DATA_READY;
break ;
case IDH_RAS_POISON:
if (data1 != 0 )
event = IDH_RAS_POISON_READY;
break ;
case IDH_REQ_RAS_ERROR_COUNT:
event = IDH_RAS_ERROR_COUNT_READY;
break ;
case IDH_REQ_RAS_CPER_DUMP:
event = IDH_RAS_CPER_DUMP_READY;
break ;
default :
break ;
}
if (event != -1 ) {
r = xgpu_nv_poll_msg(adev, event);
if (r) {
if (retry++ < 5 )
goto send_request;
if (req != IDH_REQ_GPU_INIT_DATA) {
dev_err(adev->dev, "Doesn't get msg:%d from pf, error=%d\n" , event, r);
return r;
} else /* host doesn't support REQ_GPU_INIT_DATA handshake */
adev->virt.req_init_data_ver = 0 ;
} else {
if (req == IDH_REQ_GPU_INIT_DATA) {
adev->virt.req_init_data_ver =
RREG32_NO_KIQ(mmMAILBOX_MSGBUF_RCV_DW1);
/* assume V1 in case host doesn't set version number */
if (adev->virt.req_init_data_ver < 1 )
adev->virt.req_init_data_ver = 1 ;
}
}
/* 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(mmMAILBOX_MSGBUF_RCV_DW2);
}
}
return 0 ;
}
static int xgpu_nv_send_access_requests(struct amdgpu_device *adev,
enum idh_request req)
{
return xgpu_nv_send_access_requests_with_param(adev,
req, 0 , 0 , 0 );
}
static int xgpu_nv_request_reset(struct amdgpu_device *adev)
{
int ret, i = 0 ;
while (i < NV_MAILBOX_POLL_MSG_REP_MAX) {
ret = xgpu_nv_send_access_requests(adev, IDH_REQ_GPU_RESET_ACCESS);
if (!ret)
break ;
i++;
}
return ret;
}
static int xgpu_nv_request_full_gpu_access(struct amdgpu_device *adev,
bool init)
{
enum idh_request req;
req = init ? IDH_REQ_GPU_INIT_ACCESS : IDH_REQ_GPU_FINI_ACCESS;
return xgpu_nv_send_access_requests(adev, req);
}
static int xgpu_nv_release_full_gpu_access(struct amdgpu_device *adev,
bool init)
{
enum idh_request req;
int r = 0 ;
req = init ? IDH_REL_GPU_INIT_ACCESS : IDH_REL_GPU_FINI_ACCESS;
r = xgpu_nv_send_access_requests(adev, req);
return r;
}
static int xgpu_nv_request_init_data(struct amdgpu_device *adev)
{
return xgpu_nv_send_access_requests(adev, IDH_REQ_GPU_INIT_DATA);
}
static int xgpu_nv_mailbox_ack_irq(struct amdgpu_device *adev,
struct amdgpu_irq_src *source,
struct amdgpu_iv_entry *entry)
{
dev_dbg(adev->dev, "get ack intr and do nothing.\n" );
return 0 ;
}
static int xgpu_nv_set_mailbox_ack_irq(struct amdgpu_device *adev,
struct amdgpu_irq_src *source,
unsigned type,
enum amdgpu_interrupt_state state)
{
u32 tmp = RREG32_NO_KIQ(mmMAILBOX_INT_CNTL);
if (state == AMDGPU_IRQ_STATE_ENABLE)
tmp |= 2 ;
else
tmp &= ~2 ;
WREG32_NO_KIQ(mmMAILBOX_INT_CNTL, tmp);
return 0 ;
}
static void xgpu_nv_ready_to_reset(struct amdgpu_device *adev)
{
xgpu_nv_mailbox_trans_msg(adev, IDH_READY_TO_RESET, 0 , 0 , 0 );
}
static int xgpu_nv_wait_reset(struct amdgpu_device *adev)
{
int timeout = NV_MAILBOX_POLL_FLR_TIMEDOUT;
do {
if (xgpu_nv_mailbox_peek_msg(adev) == IDH_FLR_NOTIFICATION_CMPL) {
dev_dbg(adev->dev, "Got NV IDH_FLR_NOTIFICATION_CMPL after %d ms\n" , NV_MAILBOX_POLL_FLR_TIMEDOUT - timeout);
return 0 ;
}
msleep(10 );
timeout -= 10 ;
} while (timeout > 1 );
dev_dbg(adev->dev, "waiting NV IDH_FLR_NOTIFICATION_CMPL timeout\n" );
return -ETIME;
}
static void xgpu_nv_mailbox_flr_work(struct work_struct *work)
{
struct amdgpu_virt *virt = container_of(work, struct amdgpu_virt, flr_work);
struct amdgpu_device *adev = container_of(virt, struct amdgpu_device, virt);
struct amdgpu_reset_context reset_context = { 0 };
amdgpu_virt_fini_data_exchange(adev);
/* Trigger recovery for world switch failure if no TDR */
if (amdgpu_device_should_recover_gpu(adev)
&& (!amdgpu_device_has_job_running(adev) ||
adev->sdma_timeout == MAX_SCHEDULE_TIMEOUT ||
adev->gfx_timeout == MAX_SCHEDULE_TIMEOUT ||
adev->compute_timeout == MAX_SCHEDULE_TIMEOUT ||
adev->video_timeout == MAX_SCHEDULE_TIMEOUT)) {
reset_context.method = AMD_RESET_METHOD_NONE;
reset_context.reset_req_dev = adev;
clear_bit(AMDGPU_NEED_FULL_RESET, &reset_context.flags);
set_bit(AMDGPU_HOST_FLR, &reset_context.flags);
amdgpu_device_gpu_recover(adev, NULL, &reset_context);
}
}
static void xgpu_nv_mailbox_req_bad_pages_work(struct work_struct *work)
{
struct amdgpu_virt *virt = container_of(work, struct amdgpu_virt, req_bad_pages_work);
struct amdgpu_device *adev = container_of(virt, struct amdgpu_device, virt);
if (down_read_trylock(&adev->reset_domain->sem)) {
amdgpu_virt_fini_data_exchange(adev);
amdgpu_virt_request_bad_pages(adev);
up_read(&adev->reset_domain->sem);
}
}
/**
* xgpu_nv_mailbox_handle_bad_pages_work - Reinitialize the data exchange region to get fresh bad page information
* @ work : pointer to the work_struct
*
* This work handler is triggered when bad pages are ready , and it reinitializes
* the data exchange region to retrieve updated bad page information from the host .
*/
static void xgpu_nv_mailbox_handle_bad_pages_work(struct work_struct *work)
{
struct amdgpu_virt *virt = container_of(work, struct amdgpu_virt, handle_bad_pages_work);
struct amdgpu_device *adev = container_of(virt, struct amdgpu_device, virt);
if (down_read_trylock(&adev->reset_domain->sem)) {
amdgpu_virt_fini_data_exchange(adev);
amdgpu_virt_init_data_exchange(adev);
up_read(&adev->reset_domain->sem);
}
}
static int xgpu_nv_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);
if (state == AMDGPU_IRQ_STATE_ENABLE)
tmp |= 1 ;
else
tmp &= ~1 ;
WREG32_NO_KIQ(mmMAILBOX_INT_CNTL, tmp);
return 0 ;
}
static int xgpu_nv_mailbox_rcv_irq(struct amdgpu_device *adev,
struct amdgpu_irq_src *source,
struct amdgpu_iv_entry *entry)
{
enum idh_event event = xgpu_nv_mailbox_peek_msg(adev);
struct amdgpu_ras *ras = amdgpu_ras_get_context(adev);
switch (event) {
case IDH_RAS_BAD_PAGES_READY:
xgpu_nv_mailbox_send_ack(adev);
if (amdgpu_sriov_runtime(adev))
schedule_work(&adev->virt.handle_bad_pages_work);
break ;
case IDH_RAS_BAD_PAGES_NOTIFICATION:
xgpu_nv_mailbox_send_ack(adev);
if (amdgpu_sriov_runtime(adev))
schedule_work(&adev->virt.req_bad_pages_work);
break ;
case IDH_UNRECOV_ERR_NOTIFICATION:
xgpu_nv_mailbox_send_ack(adev);
if (!amdgpu_ras_is_rma(adev)) {
ras->is_rma = true ;
dev_err(adev->dev, "VF is in an unrecoverable state. Runtime Services are halted.\n" );
}
if (amdgpu_sriov_runtime(adev))
WARN_ONCE(!amdgpu_reset_domain_schedule(adev->reset_domain,
&adev->virt.flr_work),
"Failed to queue work! at %s" ,
__func__);
break ;
case IDH_FLR_NOTIFICATION:
if (amdgpu_sriov_runtime(adev))
WARN_ONCE(!amdgpu_reset_domain_schedule(adev->reset_domain,
&adev->virt.flr_work),
"Failed to queue work! at %s" ,
__func__);
break ;
/* READY_TO_ACCESS_GPU is fetched by kernel polling, IRQ can ignore
* it byfar since that polling thread will handle it ,
* other msg like flr complete is not handled here .
*/
case IDH_CLR_MSG_BUF:
case IDH_FLR_NOTIFICATION_CMPL:
case IDH_READY_TO_ACCESS_GPU:
default :
break ;
}
return 0 ;
}
static const struct amdgpu_irq_src_funcs xgpu_nv_mailbox_ack_irq_funcs = {
.set = xgpu_nv_set_mailbox_ack_irq,
.process = xgpu_nv_mailbox_ack_irq,
};
static const struct amdgpu_irq_src_funcs xgpu_nv_mailbox_rcv_irq_funcs = {
.set = xgpu_nv_set_mailbox_rcv_irq,
.process = xgpu_nv_mailbox_rcv_irq,
};
void xgpu_nv_mailbox_set_irq_funcs(struct amdgpu_device *adev)
{
adev->virt.ack_irq.num_types = 1 ;
adev->virt.ack_irq.funcs = &xgpu_nv_mailbox_ack_irq_funcs;
adev->virt.rcv_irq.num_types = 1 ;
adev->virt.rcv_irq.funcs = &xgpu_nv_mailbox_rcv_irq_funcs;
}
int xgpu_nv_mailbox_add_irq_id(struct amdgpu_device *adev)
{
int r;
r = amdgpu_irq_add_id(adev, SOC15_IH_CLIENTID_BIF, 135 , &adev->virt.rcv_irq);
if (r)
return r;
r = amdgpu_irq_add_id(adev, SOC15_IH_CLIENTID_BIF, 138 , &adev->virt.ack_irq);
if (r) {
amdgpu_irq_put(adev, &adev->virt.rcv_irq, 0 );
return r;
}
return 0 ;
}
int xgpu_nv_mailbox_get_irq(struct amdgpu_device *adev)
{
int r;
r = amdgpu_irq_get(adev, &adev->virt.rcv_irq, 0 );
if (r)
return r;
r = amdgpu_irq_get(adev, &adev->virt.ack_irq, 0 );
if (r) {
amdgpu_irq_put(adev, &adev->virt.rcv_irq, 0 );
return r;
}
INIT_WORK(&adev->virt.flr_work, xgpu_nv_mailbox_flr_work);
INIT_WORK(&adev->virt.req_bad_pages_work, xgpu_nv_mailbox_req_bad_pages_work);
INIT_WORK(&adev->virt.handle_bad_pages_work, xgpu_nv_mailbox_handle_bad_pages_work);
return 0 ;
}
void xgpu_nv_mailbox_put_irq(struct amdgpu_device *adev)
{
amdgpu_irq_put(adev, &adev->virt.ack_irq, 0 );
amdgpu_irq_put(adev, &adev->virt.rcv_irq, 0 );
}
static void xgpu_nv_ras_poison_handler(struct amdgpu_device *adev,
enum amdgpu_ras_block block)
{
if (amdgpu_ip_version(adev, UMC_HWIP, 0 ) < IP_VERSION(12 , 0 , 0 )) {
xgpu_nv_send_access_requests(adev, IDH_RAS_POISON);
} else {
amdgpu_virt_fini_data_exchange(adev);
xgpu_nv_send_access_requests_with_param(adev,
IDH_RAS_POISON, block, 0 , 0 );
}
}
static bool xgpu_nv_rcvd_ras_intr(struct amdgpu_device *adev)
{
enum idh_event msg = xgpu_nv_mailbox_peek_msg(adev);
return (msg == IDH_RAS_ERROR_DETECTED || msg == 0 xFFFFFFFF);
}
static int xgpu_nv_req_ras_err_count(struct amdgpu_device *adev)
{
return xgpu_nv_send_access_requests(adev, IDH_REQ_RAS_ERROR_COUNT);
}
static int xgpu_nv_req_ras_cper_dump(struct amdgpu_device *adev, u64 vf_rptr)
{
uint32_t vf_rptr_hi, vf_rptr_lo;
vf_rptr_hi = (uint32_t)(vf_rptr >> 32 );
vf_rptr_lo = (uint32_t)(vf_rptr & 0 xFFFFFFFF);
return xgpu_nv_send_access_requests_with_param(
adev, IDH_REQ_RAS_CPER_DUMP, vf_rptr_hi, vf_rptr_lo, 0 );
}
static int xgpu_nv_req_ras_bad_pages(struct amdgpu_device *adev)
{
return xgpu_nv_send_access_requests(adev, IDH_REQ_RAS_BAD_PAGES);
}
const struct amdgpu_virt_ops xgpu_nv_virt_ops = {
.req_full_gpu = xgpu_nv_request_full_gpu_access,
.rel_full_gpu = xgpu_nv_release_full_gpu_access,
.req_init_data = xgpu_nv_request_init_data,
.reset_gpu = xgpu_nv_request_reset,
.ready_to_reset = xgpu_nv_ready_to_reset,
.wait_reset = xgpu_nv_wait_reset,
.trans_msg = xgpu_nv_mailbox_trans_msg,
.ras_poison_handler = xgpu_nv_ras_poison_handler,
.rcvd_ras_intr = xgpu_nv_rcvd_ras_intr,
.req_ras_err_count = xgpu_nv_req_ras_err_count,
.req_ras_cper_dump = xgpu_nv_req_ras_cper_dump,
.req_bad_pages = xgpu_nv_req_ras_bad_pages,
};
Messung V0.5 in Prozent C=99 H=93 G=95
¤ Dauer der Verarbeitung: 0.11 Sekunden
(vorverarbeitet am 2026-10-02)
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