1 files changed, 242 insertions, 52 deletions

diff --git a/drivers/gpu/drm/amd/amdgpu/mxgpu_nv.c b/drivers/gpu/drm/amd/amdgpu/mxgpu_nv.c
index 48e588d3c409..e7cd07383d56 100644
--- a/drivers/gpu/drm/amd/amdgpu/mxgpu_nv.c
+++ b/drivers/gpu/drm/amd/amdgpu/mxgpu_nv.c
@@ -31,6 +31,8 @@
 #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);
@@ -59,15 +61,20 @@ static enum idh_event xgpu_nv_mailbox_peek_msg(struct amdgpu_device *adev)
 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 != event)
+	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 0;
+	return r;
 }
 
 static uint8_t xgpu_nv_peek_ack(struct amdgpu_device *adev)
@@ -89,24 +96,40 @@ static int xgpu_nv_poll_ack(struct amdgpu_device *adev)
 		timeout -= 5;
 	} while (timeout > 1);
 
-	pr_err("Doesn't get TRN_MSG_ACK from pf in %d msec\n", NV_MAILBOX_POLL_ACK_TIMEDOUT);
+	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, timeout = NV_MAILBOX_POLL_MSG_TIMEDOUT;
+	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)
+		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);
-		timeout -= 10;
-	} while (timeout > 1);
+		now = (uint64_t)ktime_to_ms(ktime_get());
+	} while (timeout > now);
 
+	dev_dbg(adev->dev, "nv_poll_msg timed out\n");
 
 	return -ETIME;
 }
@@ -127,11 +150,12 @@ static void xgpu_nv_mailbox_trans_msg (struct amdgpu_device *adev,
 		xgpu_nv_mailbox_set_valid(adev, false);
 		trn = xgpu_nv_peek_ack(adev);
 		if (trn) {
-			pr_err("trn=%x ACK should not assert! wait again !\n", 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);
@@ -141,18 +165,27 @@ static void xgpu_nv_mailbox_trans_msg (struct amdgpu_device *adev,
 	/* start to poll ack */
 	r = xgpu_nv_poll_ack(adev);
 	if (r)
-		pr_err("Doesn't get ack from pf, continue\n");
+		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(struct amdgpu_device *adev,
-					enum idh_request req)
+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;
+	struct amdgpu_virt *virt = &adev->virt;
+	int r = 0, retry = 1;
 	enum idh_event event = -1;
 
-	xgpu_nv_mailbox_trans_msg(adev, req, 0, 0, 0);
+	mutex_lock(&virt->access_req_mutex);
+send_request:
+
+	if (amdgpu_ras_is_rma(adev)) {
+		r = -ENODEV;
+		goto out;
+	}
+
+	xgpu_nv_mailbox_trans_msg(adev, req, data1, data2, data3);
 
 	switch (req) {
 	case IDH_REQ_GPU_INIT_ACCESS:
@@ -163,6 +196,19 @@ static int xgpu_nv_send_access_requests(struct amdgpu_device *adev,
 	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;
+	case IDH_REQ_RAS_CHK_CRITI:
+		event = IDH_REQ_RAS_CHK_CRITI_READY;
+		break;
 	default:
 		break;
 	}
@@ -170,21 +216,30 @@ static int xgpu_nv_send_access_requests(struct amdgpu_device *adev,
 	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) {
-				pr_err("Doesn't get msg:%d from pf, error=%d\n", event, r);
-				return r;
-			}
-			else /* host doesn't support REQ_GPU_INIT_DATA handshake */
+				dev_err(adev->dev, "Doesn't get msg:%d from pf, error=%d\n", event, r);
+				goto out;
+			} 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;
+			if (req == IDH_REQ_GPU_INIT_DATA) {
+				switch (RREG32_NO_KIQ(mmMAILBOX_MSGBUF_RCV_DW1)) {
+				case GPU_CRIT_REGION_V2:
+					adev->virt.req_init_data_ver = GPU_CRIT_REGION_V2;
+					adev->virt.init_data_header.offset =
+						RREG32_NO_KIQ(mmMAILBOX_MSGBUF_RCV_DW2);
+					adev->virt.init_data_header.size_kb =
+						RREG32_NO_KIQ(mmMAILBOX_MSGBUF_RCV_DW3);
+					break;
+				default:
+					adev->virt.req_init_data_ver = GPU_CRIT_REGION_V1;
+					adev->virt.init_data_header.offset = -1;
+					adev->virt.init_data_header.size_kb = 0;
+					break;
+				}
 			}
 		}
 
@@ -195,7 +250,17 @@ static int xgpu_nv_send_access_requests(struct amdgpu_device *adev,
 		}
 	}
 
-	return 0;
+out:
+	mutex_unlock(&virt->access_req_mutex);
+
+	return r;
+}
+
+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)
@@ -235,14 +300,15 @@ static int xgpu_nv_release_full_gpu_access(struct amdgpu_device *adev,
 
 static int xgpu_nv_request_init_data(struct amdgpu_device *adev)
 {
-	return xgpu_nv_send_access_requests(adev, IDH_REQ_GPU_INIT_DATA);
+	return xgpu_nv_send_access_requests_with_param(adev, IDH_REQ_GPU_INIT_DATA,
+			0, GPU_CRIT_REGION_V2, 0);
 }
 
 static int xgpu_nv_mailbox_ack_irq(struct amdgpu_device *adev,
 					struct amdgpu_irq_src *source,
 					struct amdgpu_iv_entry *entry)
 {
-	DRM_DEBUG("get ack intr and do nothing.\n");
+	dev_dbg(adev->dev, "get ack intr and do nothing.\n");
 	return 0;
 }
 
@@ -263,33 +329,34 @@ static int xgpu_nv_set_mailbox_ack_irq(struct amdgpu_device *adev,
 	return 0;
 }
 
-static void xgpu_nv_mailbox_flr_work(struct work_struct *work)
+static void xgpu_nv_ready_to_reset(struct amdgpu_device *adev)
 {
-	struct amdgpu_virt *virt = container_of(work, struct amdgpu_virt, flr_work);
-	struct amdgpu_device *adev = container_of(virt, struct amdgpu_device, virt);
-	int timeout = NV_MAILBOX_POLL_FLR_TIMEDOUT;
-
-	/* block amdgpu_gpu_recover till msg FLR COMPLETE received,
-	 * otherwise the mailbox msg will be ruined/reseted by
-	 * the VF FLR.
-	 */
-	if (!down_read_trylock(&adev->reset_sem))
-		return;
-
-	amdgpu_virt_fini_data_exchange(adev);
-	atomic_set(&adev->in_gpu_reset, 1);
+	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)
-			goto flr_done;
-
+		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);
 
-flr_done:
-	atomic_set(&adev->in_gpu_reset, 0);
-	up_read(&adev->reset_sem);
+	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)
@@ -297,8 +364,46 @@ flr_done:
 		adev->sdma_timeout == MAX_SCHEDULE_TIMEOUT ||
 		adev->gfx_timeout == MAX_SCHEDULE_TIMEOUT ||
 		adev->compute_timeout == MAX_SCHEDULE_TIMEOUT ||
-		adev->video_timeout == MAX_SCHEDULE_TIMEOUT))
-		amdgpu_device_gpu_recover(adev, NULL);
+		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,
@@ -323,11 +428,38 @@ static int xgpu_nv_mailbox_rcv_irq(struct amdgpu_device *adev,
 				   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))
-			schedule_work(&adev->virt.flr_work);
+			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,
@@ -392,6 +524,8 @@ int xgpu_nv_mailbox_get_irq(struct amdgpu_device *adev)
 	}
 
 	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;
 }
@@ -402,11 +536,67 @@ void xgpu_nv_mailbox_put_irq(struct amdgpu_device *adev)
 	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 == 0xFFFFFFFF);
+}
+
+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 & 0xFFFFFFFF);
+	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);
+}
+
+static int xgpu_nv_check_vf_critical_region(struct amdgpu_device *adev, u64 addr)
+{
+	uint32_t addr_hi, addr_lo;
+
+	addr_hi = (uint32_t)(addr >> 32);
+	addr_lo = (uint32_t)(addr & 0xFFFFFFFF);
+	return xgpu_nv_send_access_requests_with_param(
+		adev, IDH_REQ_RAS_CHK_CRITI, addr_hi, addr_lo, 0);
+}
+
 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,
-	.wait_reset = NULL,
+	.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,
+	.req_ras_chk_criti = xgpu_nv_check_vf_critical_region
 };