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/* * Copyright 2021 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 "aldebaran.h"#include "amdgpu_reset.h"#include "amdgpu_amdkfd.h"#include "amdgpu_dpm.h"#include "amdgpu_job.h"#include "amdgpu_ring.h"#include "amdgpu_ras.h"#include "amdgpu_psp.h"#include "amdgpu_xgmi.h" static bool aldebaran_is_mode2_default(struct amdgpu_reset_control *reset_ctl){	struct amdgpu_device *adev = (struct amdgpu_device *)reset_ctl->handle; 	if ((amdgpu_ip_version(adev, MP1_HWIP, 0) == IP_VERSION(13, 0, 2) &&	     adev->gmc.xgmi.connected_to_cpu))		return true; 	return false;} static struct amdgpu_reset_handler *aldebaran_get_reset_handler(struct amdgpu_reset_control *reset_ctl,			    struct amdgpu_reset_context *reset_context){	struct amdgpu_reset_handler *handler;	struct amdgpu_device *adev = (struct amdgpu_device *)reset_ctl->handle;	int i; 	if (reset_context->method == AMD_RESET_METHOD_NONE) {		if (aldebaran_is_mode2_default(reset_ctl))			reset_context->method = AMD_RESET_METHOD_MODE2;		else			reset_context->method = amdgpu_asic_reset_method(adev);	} 	if (reset_context->method != AMD_RESET_METHOD_NONE) {		dev_dbg(adev->dev, "Getting reset handler for method %d\n",			reset_context->method);		for_each_handler(i, handler, reset_ctl) {			if (handler->reset_method == reset_context->method)				return handler;		}	} 	dev_dbg(adev->dev, "Reset handler not found!\n"); 	return NULL;} static inline uint32_t aldebaran_get_ip_block_mask(struct amdgpu_device *adev){	uint32_t ip_block_mask = BIT(AMD_IP_BLOCK_TYPE_GFX) |				 BIT(AMD_IP_BLOCK_TYPE_SDMA); 	if (adev->aid_mask)		ip_block_mask |= BIT(AMD_IP_BLOCK_TYPE_IH); 	return ip_block_mask;} static int aldebaran_mode2_suspend_ip(struct amdgpu_device *adev){	uint32_t ip_block_mask = aldebaran_get_ip_block_mask(adev);	uint32_t ip_block;	int r, i; 	/* Skip suspend of SDMA IP versions >= 4.4.2. They are multi-aid */	if (adev->aid_mask)		ip_block_mask &= ~BIT(AMD_IP_BLOCK_TYPE_SDMA); 	amdgpu_device_set_pg_state(adev, AMD_PG_STATE_UNGATE);	amdgpu_device_set_cg_state(adev, AMD_CG_STATE_UNGATE); 	for (i = adev->num_ip_blocks - 1; i >= 0; i--) {		ip_block = BIT(adev->ip_blocks[i].version->type);		if (!(ip_block_mask & ip_block))			continue; 		r = amdgpu_ip_block_suspend(&adev->ip_blocks[i]);		if (r)			return r;	} 	return 0;} static intaldebaran_mode2_prepare_hwcontext(struct amdgpu_reset_control *reset_ctl,				  struct amdgpu_reset_context *reset_context){	int r = 0;	struct amdgpu_device *adev = (struct amdgpu_device *)reset_ctl->handle; 	dev_dbg(adev->dev, "Aldebaran prepare hw context\n");	/* Don't suspend on bare metal if we are not going to HW reset the ASIC */	if (!amdgpu_sriov_vf(adev))		r = aldebaran_mode2_suspend_ip(adev); 	return r;} static void aldebaran_async_reset(struct work_struct *work){	struct amdgpu_reset_handler *handler;	struct amdgpu_reset_control *reset_ctl =		container_of(work, struct amdgpu_reset_control, reset_work);	struct amdgpu_device *adev = (struct amdgpu_device *)reset_ctl->handle;	int i; 	for_each_handler(i, handler, reset_ctl)	{		if (handler->reset_method == reset_ctl->active_reset) {			dev_dbg(adev->dev, "Resetting device\n");			handler->do_reset(adev);			break;		}	}} static int aldebaran_mode2_reset(struct amdgpu_device *adev){	/* disable BM */	pci_clear_master(adev->pdev);	adev->asic_reset_res = amdgpu_dpm_mode2_reset(adev);	return adev->asic_reset_res;} static intaldebaran_mode2_perform_reset(struct amdgpu_reset_control *reset_ctl,			      struct amdgpu_reset_context *reset_context){	struct amdgpu_device *adev = (struct amdgpu_device *)reset_ctl->handle;	struct list_head *reset_device_list = reset_context->reset_device_list;	struct amdgpu_device *tmp_adev = NULL;	int r = 0; 	dev_dbg(adev->dev, "aldebaran perform hw reset\n"); 	if (reset_device_list == NULL)		return -EINVAL; 	if (amdgpu_ip_version(adev, MP1_HWIP, 0) == IP_VERSION(13, 0, 2) &&	    reset_context->hive == NULL) {		/* Wrong context, return error */		return -EINVAL;	} 	list_for_each_entry(tmp_adev, reset_device_list, reset_list) {		mutex_lock(&tmp_adev->reset_cntl->reset_lock);		tmp_adev->reset_cntl->active_reset = AMD_RESET_METHOD_MODE2;	}	/*	 * Mode2 reset doesn't need any sync between nodes in XGMI hive, instead launch	 * them together so that they can be completed asynchronously on multiple nodes	 */	list_for_each_entry(tmp_adev, reset_device_list, reset_list) {		/* For XGMI run all resets in parallel to speed up the process */		if (tmp_adev->gmc.xgmi.num_physical_nodes > 1) {			if (!queue_work(system_dfl_wq,					&tmp_adev->reset_cntl->reset_work))				r = -EALREADY;		} else			r = aldebaran_mode2_reset(tmp_adev);		if (r) {			dev_err(tmp_adev->dev,				"ASIC reset failed with error, %d for drm dev, %s",				r, adev_to_drm(tmp_adev)->unique);			break;		}	} 	/* For XGMI wait for all resets to complete before proceed */	if (!r) {		list_for_each_entry(tmp_adev, reset_device_list, reset_list) {			if (tmp_adev->gmc.xgmi.num_physical_nodes > 1) {				flush_work(&tmp_adev->reset_cntl->reset_work);				r = tmp_adev->asic_reset_res;				if (r)					break;			}		}	} 	list_for_each_entry(tmp_adev, reset_device_list, reset_list) {		mutex_unlock(&tmp_adev->reset_cntl->reset_lock);		tmp_adev->reset_cntl->active_reset = AMD_RESET_METHOD_NONE;	} 	return r;} static int aldebaran_mode2_restore_ip(struct amdgpu_device *adev){	struct amdgpu_firmware_info *ucode_list[AMDGPU_UCODE_ID_MAXIMUM];	uint32_t ip_block_mask = aldebaran_get_ip_block_mask(adev);	struct amdgpu_firmware_info *ucode;	struct amdgpu_ip_block *cmn_block;	struct amdgpu_ip_block *ih_block;	int ucode_count = 0;	int i, r; 	dev_dbg(adev->dev, "Reloading ucodes after reset\n");	for (i = 0; i < adev->firmware.max_ucodes; i++) {		ucode = &adev->firmware.ucode[i];		if (!ucode->fw)			continue;		switch (ucode->ucode_id) {		case AMDGPU_UCODE_ID_SDMA0:		case AMDGPU_UCODE_ID_SDMA1:		case AMDGPU_UCODE_ID_SDMA2:		case AMDGPU_UCODE_ID_SDMA3:		case AMDGPU_UCODE_ID_SDMA4:		case AMDGPU_UCODE_ID_SDMA5:		case AMDGPU_UCODE_ID_SDMA6:		case AMDGPU_UCODE_ID_SDMA7:		case AMDGPU_UCODE_ID_CP_MEC1:		case AMDGPU_UCODE_ID_CP_MEC1_JT:		case AMDGPU_UCODE_ID_RLC_RESTORE_LIST_CNTL:		case AMDGPU_UCODE_ID_RLC_RESTORE_LIST_GPM_MEM:		case AMDGPU_UCODE_ID_RLC_RESTORE_LIST_SRM_MEM:		case AMDGPU_UCODE_ID_RLC_G:			ucode_list[ucode_count++] = ucode;			break;		default:			break;		}	} 	/* Reinit NBIF block */	cmn_block =		amdgpu_device_ip_get_ip_block(adev, AMD_IP_BLOCK_TYPE_COMMON);	if (unlikely(!cmn_block)) {		dev_err(adev->dev, "Failed to get BIF handle\n");		return -EINVAL;	}	r = amdgpu_ip_block_resume(cmn_block);	if (r)		return r; 	if (ip_block_mask & BIT(AMD_IP_BLOCK_TYPE_IH)) {		ih_block = amdgpu_device_ip_get_ip_block(adev,							 AMD_IP_BLOCK_TYPE_IH);		if (unlikely(!ih_block)) {			dev_err(adev->dev, "Failed to get IH handle\n");			return -EINVAL;		}		r = amdgpu_ip_block_resume(ih_block);		if (r)			return r;	} 	/* Reinit GFXHUB */	adev->gfxhub.funcs->init(adev);	r = adev->gfxhub.funcs->gart_enable(adev);	if (r) {		dev_err(adev->dev, "GFXHUB gart reenable failed after reset\n");		return r;	} 	/* Reload GFX firmware */	r = psp_load_fw_list(&adev->psp, ucode_list, ucode_count);	if (r) {		dev_err(adev->dev, "GFX ucode load failed after reset\n");		return r;	} 	/* Resume RLC, FW needs RLC alive to complete reset process */	adev->gfx.rlc.funcs->resume(adev); 	/* Wait for FW reset event complete */	r = amdgpu_dpm_wait_for_event(adev, SMU_EVENT_RESET_COMPLETE, 0);	if (r) {		dev_err(adev->dev,			"Failed to get response from firmware after reset\n");		return r;	} 	for (i = 0; i < adev->num_ip_blocks; i++) {		if (!(adev->ip_blocks[i].version->type ==			      AMD_IP_BLOCK_TYPE_GFX ||		      adev->ip_blocks[i].version->type ==			      AMD_IP_BLOCK_TYPE_SDMA))			continue; 		r = amdgpu_ip_block_resume(&adev->ip_blocks[i]);		if (r)			return r;	} 	for (i = 0; i < adev->num_ip_blocks; i++) {		if (!(adev->ip_blocks[i].version->type ==			      AMD_IP_BLOCK_TYPE_GFX ||		      adev->ip_blocks[i].version->type ==			      AMD_IP_BLOCK_TYPE_SDMA ||		      adev->ip_blocks[i].version->type ==			      AMD_IP_BLOCK_TYPE_COMMON))			continue; 		if (adev->ip_blocks[i].version->funcs->late_init) {			r = adev->ip_blocks[i].version->funcs->late_init(				&adev->ip_blocks[i]);			if (r) {				dev_err(adev->dev,					"late_init of IP block <%s> failed %d after reset\n",					adev->ip_blocks[i].version->funcs->name,					r);				return r;			}		}		adev->ip_blocks[i].status.late_initialized = true;	} 	amdgpu_device_set_cg_state(adev, AMD_CG_STATE_GATE);	amdgpu_device_set_pg_state(adev, AMD_PG_STATE_GATE); 	return r;} static intaldebaran_mode2_restore_hwcontext(struct amdgpu_reset_control *reset_ctl,				  struct amdgpu_reset_context *reset_context){	struct list_head *reset_device_list = reset_context->reset_device_list;	struct amdgpu_device *tmp_adev = NULL;	struct amdgpu_ras *con;	int r; 	if (reset_device_list == NULL)		return -EINVAL; 	if (amdgpu_ip_version(reset_context->reset_req_dev, MP1_HWIP, 0) ==		    IP_VERSION(13, 0, 2) &&	    reset_context->hive == NULL) {		/* Wrong context, return error */		return -EINVAL;	} 	list_for_each_entry(tmp_adev, reset_device_list, reset_list) {		amdgpu_set_init_level(tmp_adev,				AMDGPU_INIT_LEVEL_RESET_RECOVERY);		dev_info(tmp_adev->dev,			 "GPU reset succeeded, trying to resume\n");		/*TBD: Ideally should clear only GFX, SDMA blocks*/		amdgpu_ras_clear_err_state(tmp_adev);		r = aldebaran_mode2_restore_ip(tmp_adev);		if (r)			goto end; 		/*		 * Add this ASIC as tracked as reset was already		 * complete successfully.		 */		amdgpu_register_gpu_instance(tmp_adev); 		/* Resume RAS, ecc_irq */		con = amdgpu_ras_get_context(tmp_adev);		if (!amdgpu_sriov_vf(tmp_adev) && con) {			if (tmp_adev->sdma.ras &&				tmp_adev->sdma.ras->ras_block.ras_late_init) {				r = tmp_adev->sdma.ras->ras_block.ras_late_init(tmp_adev,						&tmp_adev->sdma.ras->ras_block.ras_comm);				if (r) {					dev_err(tmp_adev->dev, "SDMA failed to execute ras_late_init! ret:%d\n", r);					goto end;				}			} 			if (tmp_adev->gfx.ras &&				tmp_adev->gfx.ras->ras_block.ras_late_init) {				r = tmp_adev->gfx.ras->ras_block.ras_late_init(tmp_adev,						&tmp_adev->gfx.ras->ras_block.ras_comm);				if (r) {					dev_err(tmp_adev->dev, "GFX failed to execute ras_late_init! ret:%d\n", r);					goto end;				}			}		} 		amdgpu_ras_resume(tmp_adev); 		/* Update PSP FW topology after reset */		if (reset_context->hive &&		    tmp_adev->gmc.xgmi.num_physical_nodes > 1)			r = amdgpu_xgmi_update_topology(reset_context->hive,							tmp_adev); 		if (!r) {			amdgpu_set_init_level(tmp_adev,					      AMDGPU_INIT_LEVEL_DEFAULT);			amdgpu_irq_gpu_reset_resume_helper(tmp_adev); 			r = amdgpu_ib_ring_tests(tmp_adev);			if (r) {				dev_err(tmp_adev->dev,					"ib ring test failed (%d).\n", r);				r = -EAGAIN;				tmp_adev->asic_reset_res = r;				goto end;			}		}	} end:	return r;} static struct amdgpu_reset_handler aldebaran_mode2_handler = {	.reset_method		= AMD_RESET_METHOD_MODE2,	.prepare_env		= NULL,	.prepare_hwcontext	= aldebaran_mode2_prepare_hwcontext,	.perform_reset		= aldebaran_mode2_perform_reset,	.restore_hwcontext	= aldebaran_mode2_restore_hwcontext,	.restore_env		= NULL,	.do_reset		= aldebaran_mode2_reset,}; static struct amdgpu_reset_handler	*aldebaran_rst_handlers[AMDGPU_RESET_MAX_HANDLERS] = {		&aldebaran_mode2_handler,		&xgmi_reset_on_init_handler,	}; int aldebaran_reset_init(struct amdgpu_device *adev){	struct amdgpu_reset_control *reset_ctl; 	reset_ctl = kzalloc_obj(*reset_ctl);	if (!reset_ctl)		return -ENOMEM; 	reset_ctl->handle = adev;	reset_ctl->async_reset = aldebaran_async_reset;	reset_ctl->active_reset = AMD_RESET_METHOD_NONE;	reset_ctl->get_reset_handler = aldebaran_get_reset_handler; 	INIT_WORK(&reset_ctl->reset_work, reset_ctl->async_reset);	/* Only mode2 is handled through reset control now */	reset_ctl->reset_handlers = &aldebaran_rst_handlers; 	adev->reset_cntl = reset_ctl; 	return 0;} int aldebaran_reset_fini(struct amdgpu_device *adev){	kfree(adev->reset_cntl);	adev->reset_cntl = NULL;	return 0;}