cachepc-linux

Fork of AMDESE/linux with modifications for CachePC side-channel attack
git clone https://git.sinitax.com/sinitax/cachepc-linux
Log | Files | Refs | README | LICENSE | sfeed.txt

vega10_smumgr.c (12015B)


      1/*
      2 * Copyright 2016 Advanced Micro Devices, Inc.
      3 *
      4 * Permission is hereby granted, free of charge, to any person obtaining a
      5 * copy of this software and associated documentation files (the "Software"),
      6 * to deal in the Software without restriction, including without limitation
      7 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
      8 * and/or sell copies of the Software, and to permit persons to whom the
      9 * Software is furnished to do so, subject to the following conditions:
     10 *
     11 * The above copyright notice and this permission notice shall be included in
     12 * all copies or substantial portions of the Software.
     13 *
     14 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
     15 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
     16 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
     17 * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
     18 * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
     19 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
     20 * OTHER DEALINGS IN THE SOFTWARE.
     21 *
     22 */
     23
     24#include <linux/pci.h>
     25
     26#include "smumgr.h"
     27#include "vega10_inc.h"
     28#include "soc15_common.h"
     29#include "vega10_smumgr.h"
     30#include "vega10_hwmgr.h"
     31#include "vega10_ppsmc.h"
     32#include "smu9_driver_if.h"
     33#include "smu9_smumgr.h"
     34#include "ppatomctrl.h"
     35#include "pp_debug.h"
     36
     37
     38static int vega10_copy_table_from_smc(struct pp_hwmgr *hwmgr,
     39		uint8_t *table, int16_t table_id)
     40{
     41	struct vega10_smumgr *priv = hwmgr->smu_backend;
     42	struct amdgpu_device *adev = hwmgr->adev;
     43
     44	PP_ASSERT_WITH_CODE(table_id < MAX_SMU_TABLE,
     45			"Invalid SMU Table ID!", return -EINVAL);
     46	PP_ASSERT_WITH_CODE(priv->smu_tables.entry[table_id].version != 0,
     47			"Invalid SMU Table version!", return -EINVAL);
     48	PP_ASSERT_WITH_CODE(priv->smu_tables.entry[table_id].size != 0,
     49			"Invalid SMU Table Length!", return -EINVAL);
     50	smum_send_msg_to_smc_with_parameter(hwmgr,
     51			PPSMC_MSG_SetDriverDramAddrHigh,
     52			upper_32_bits(priv->smu_tables.entry[table_id].mc_addr),
     53			NULL);
     54	smum_send_msg_to_smc_with_parameter(hwmgr,
     55			PPSMC_MSG_SetDriverDramAddrLow,
     56			lower_32_bits(priv->smu_tables.entry[table_id].mc_addr),
     57			NULL);
     58	smum_send_msg_to_smc_with_parameter(hwmgr,
     59			PPSMC_MSG_TransferTableSmu2Dram,
     60			priv->smu_tables.entry[table_id].table_id,
     61			NULL);
     62
     63	amdgpu_asic_invalidate_hdp(adev, NULL);
     64
     65	memcpy(table, priv->smu_tables.entry[table_id].table,
     66			priv->smu_tables.entry[table_id].size);
     67
     68	return 0;
     69}
     70
     71static int vega10_copy_table_to_smc(struct pp_hwmgr *hwmgr,
     72		uint8_t *table, int16_t table_id)
     73{
     74	struct vega10_smumgr *priv = hwmgr->smu_backend;
     75	struct amdgpu_device *adev = hwmgr->adev;
     76
     77	/* under sriov, vbios or hypervisor driver
     78	 * has already copy table to smc so here only skip it
     79	 */
     80	if (!hwmgr->not_vf)
     81		return 0;
     82
     83	PP_ASSERT_WITH_CODE(table_id < MAX_SMU_TABLE,
     84			"Invalid SMU Table ID!", return -EINVAL);
     85	PP_ASSERT_WITH_CODE(priv->smu_tables.entry[table_id].version != 0,
     86			"Invalid SMU Table version!", return -EINVAL);
     87	PP_ASSERT_WITH_CODE(priv->smu_tables.entry[table_id].size != 0,
     88			"Invalid SMU Table Length!", return -EINVAL);
     89
     90	memcpy(priv->smu_tables.entry[table_id].table, table,
     91			priv->smu_tables.entry[table_id].size);
     92
     93	amdgpu_asic_flush_hdp(adev, NULL);
     94
     95	smum_send_msg_to_smc_with_parameter(hwmgr,
     96			PPSMC_MSG_SetDriverDramAddrHigh,
     97			upper_32_bits(priv->smu_tables.entry[table_id].mc_addr),
     98			NULL);
     99	smum_send_msg_to_smc_with_parameter(hwmgr,
    100			PPSMC_MSG_SetDriverDramAddrLow,
    101			lower_32_bits(priv->smu_tables.entry[table_id].mc_addr),
    102			NULL);
    103	smum_send_msg_to_smc_with_parameter(hwmgr,
    104			PPSMC_MSG_TransferTableDram2Smu,
    105			priv->smu_tables.entry[table_id].table_id,
    106			NULL);
    107
    108	return 0;
    109}
    110
    111int vega10_enable_smc_features(struct pp_hwmgr *hwmgr,
    112			       bool enable, uint32_t feature_mask)
    113{
    114	int msg = enable ? PPSMC_MSG_EnableSmuFeatures :
    115			PPSMC_MSG_DisableSmuFeatures;
    116
    117	/* VF has no permission to change smu feature due
    118	 * to security concern even under pp one vf mode
    119	 * it still can't do it. For vega10, the smu in
    120	 * vbios will enable the appropriate features.
    121	 * */
    122	if (!hwmgr->not_vf)
    123		return 0;
    124
    125	return smum_send_msg_to_smc_with_parameter(hwmgr,
    126			msg, feature_mask, NULL);
    127}
    128
    129int vega10_get_enabled_smc_features(struct pp_hwmgr *hwmgr,
    130			    uint64_t *features_enabled)
    131{
    132	uint32_t enabled_features;
    133
    134	if (features_enabled == NULL)
    135		return -EINVAL;
    136
    137	smum_send_msg_to_smc(hwmgr,
    138			PPSMC_MSG_GetEnabledSmuFeatures,
    139			&enabled_features);
    140	*features_enabled = enabled_features;
    141
    142	return 0;
    143}
    144
    145static bool vega10_is_dpm_running(struct pp_hwmgr *hwmgr)
    146{
    147	uint64_t features_enabled = 0;
    148
    149	vega10_get_enabled_smc_features(hwmgr, &features_enabled);
    150
    151	if (features_enabled & SMC_DPM_FEATURES)
    152		return true;
    153	else
    154		return false;
    155}
    156
    157static int vega10_set_tools_address(struct pp_hwmgr *hwmgr)
    158{
    159	struct vega10_smumgr *priv = hwmgr->smu_backend;
    160
    161	if (priv->smu_tables.entry[TOOLSTABLE].mc_addr) {
    162		smum_send_msg_to_smc_with_parameter(hwmgr,
    163				PPSMC_MSG_SetToolsDramAddrHigh,
    164				upper_32_bits(priv->smu_tables.entry[TOOLSTABLE].mc_addr),
    165				NULL);
    166		smum_send_msg_to_smc_with_parameter(hwmgr,
    167				PPSMC_MSG_SetToolsDramAddrLow,
    168				lower_32_bits(priv->smu_tables.entry[TOOLSTABLE].mc_addr),
    169				NULL);
    170	}
    171	return 0;
    172}
    173
    174static int vega10_verify_smc_interface(struct pp_hwmgr *hwmgr)
    175{
    176	uint32_t smc_driver_if_version;
    177	struct amdgpu_device *adev = hwmgr->adev;
    178	uint32_t dev_id;
    179	uint32_t rev_id;
    180
    181	PP_ASSERT_WITH_CODE(!smum_send_msg_to_smc(hwmgr,
    182			PPSMC_MSG_GetDriverIfVersion,
    183			&smc_driver_if_version),
    184			"Attempt to get SMC IF Version Number Failed!",
    185			return -EINVAL);
    186
    187	dev_id = adev->pdev->device;
    188	rev_id = adev->pdev->revision;
    189
    190	if (!((dev_id == 0x687f) &&
    191		((rev_id == 0xc0) ||
    192		(rev_id == 0xc1) ||
    193		(rev_id == 0xc3)))) {
    194		if (smc_driver_if_version != SMU9_DRIVER_IF_VERSION) {
    195			pr_err("Your firmware(0x%x) doesn't match SMU9_DRIVER_IF_VERSION(0x%x). Please update your firmware!\n",
    196			       smc_driver_if_version, SMU9_DRIVER_IF_VERSION);
    197			return -EINVAL;
    198		}
    199	}
    200
    201	return 0;
    202}
    203
    204static int vega10_smu_init(struct pp_hwmgr *hwmgr)
    205{
    206	struct vega10_smumgr *priv;
    207	unsigned long tools_size;
    208	int ret;
    209	struct cgs_firmware_info info = {0};
    210
    211	ret = cgs_get_firmware_info(hwmgr->device,
    212					CGS_UCODE_ID_SMU,
    213					&info);
    214	if (ret || !info.kptr)
    215		return -EINVAL;
    216
    217	priv = kzalloc(sizeof(struct vega10_smumgr), GFP_KERNEL);
    218
    219	if (!priv)
    220		return -ENOMEM;
    221
    222	hwmgr->smu_backend = priv;
    223
    224	/* allocate space for pptable */
    225	ret = amdgpu_bo_create_kernel((struct amdgpu_device *)hwmgr->adev,
    226			sizeof(PPTable_t),
    227			PAGE_SIZE,
    228			AMDGPU_GEM_DOMAIN_VRAM,
    229			&priv->smu_tables.entry[PPTABLE].handle,
    230			&priv->smu_tables.entry[PPTABLE].mc_addr,
    231			&priv->smu_tables.entry[PPTABLE].table);
    232	if (ret)
    233		goto free_backend;
    234
    235	priv->smu_tables.entry[PPTABLE].version = 0x01;
    236	priv->smu_tables.entry[PPTABLE].size = sizeof(PPTable_t);
    237	priv->smu_tables.entry[PPTABLE].table_id = TABLE_PPTABLE;
    238
    239	/* allocate space for watermarks table */
    240	ret = amdgpu_bo_create_kernel((struct amdgpu_device *)hwmgr->adev,
    241			sizeof(Watermarks_t),
    242			PAGE_SIZE,
    243			AMDGPU_GEM_DOMAIN_VRAM,
    244			&priv->smu_tables.entry[WMTABLE].handle,
    245			&priv->smu_tables.entry[WMTABLE].mc_addr,
    246			&priv->smu_tables.entry[WMTABLE].table);
    247
    248	if (ret)
    249		goto err0;
    250
    251	priv->smu_tables.entry[WMTABLE].version = 0x01;
    252	priv->smu_tables.entry[WMTABLE].size = sizeof(Watermarks_t);
    253	priv->smu_tables.entry[WMTABLE].table_id = TABLE_WATERMARKS;
    254
    255	/* allocate space for AVFS table */
    256	ret = amdgpu_bo_create_kernel((struct amdgpu_device *)hwmgr->adev,
    257			sizeof(AvfsTable_t),
    258			PAGE_SIZE,
    259			AMDGPU_GEM_DOMAIN_VRAM,
    260			&priv->smu_tables.entry[AVFSTABLE].handle,
    261			&priv->smu_tables.entry[AVFSTABLE].mc_addr,
    262			&priv->smu_tables.entry[AVFSTABLE].table);
    263
    264	if (ret)
    265		goto err1;
    266
    267	priv->smu_tables.entry[AVFSTABLE].version = 0x01;
    268	priv->smu_tables.entry[AVFSTABLE].size = sizeof(AvfsTable_t);
    269	priv->smu_tables.entry[AVFSTABLE].table_id = TABLE_AVFS;
    270
    271	tools_size = 0x19000;
    272	if (tools_size) {
    273		ret = amdgpu_bo_create_kernel((struct amdgpu_device *)hwmgr->adev,
    274				tools_size,
    275				PAGE_SIZE,
    276				AMDGPU_GEM_DOMAIN_VRAM,
    277				&priv->smu_tables.entry[TOOLSTABLE].handle,
    278				&priv->smu_tables.entry[TOOLSTABLE].mc_addr,
    279				&priv->smu_tables.entry[TOOLSTABLE].table);
    280		if (ret)
    281			goto err2;
    282		priv->smu_tables.entry[TOOLSTABLE].version = 0x01;
    283		priv->smu_tables.entry[TOOLSTABLE].size = tools_size;
    284		priv->smu_tables.entry[TOOLSTABLE].table_id = TABLE_PMSTATUSLOG;
    285	}
    286
    287	/* allocate space for AVFS Fuse table */
    288	ret = amdgpu_bo_create_kernel((struct amdgpu_device *)hwmgr->adev,
    289			sizeof(AvfsFuseOverride_t),
    290			PAGE_SIZE,
    291			AMDGPU_GEM_DOMAIN_VRAM,
    292			&priv->smu_tables.entry[AVFSFUSETABLE].handle,
    293			&priv->smu_tables.entry[AVFSFUSETABLE].mc_addr,
    294			&priv->smu_tables.entry[AVFSFUSETABLE].table);
    295	if (ret)
    296		goto err3;
    297
    298	priv->smu_tables.entry[AVFSFUSETABLE].version = 0x01;
    299	priv->smu_tables.entry[AVFSFUSETABLE].size = sizeof(AvfsFuseOverride_t);
    300	priv->smu_tables.entry[AVFSFUSETABLE].table_id = TABLE_AVFS_FUSE_OVERRIDE;
    301
    302
    303	return 0;
    304
    305err3:
    306	if (priv->smu_tables.entry[TOOLSTABLE].table)
    307		amdgpu_bo_free_kernel(&priv->smu_tables.entry[TOOLSTABLE].handle,
    308				&priv->smu_tables.entry[TOOLSTABLE].mc_addr,
    309				&priv->smu_tables.entry[TOOLSTABLE].table);
    310err2:
    311	amdgpu_bo_free_kernel(&priv->smu_tables.entry[AVFSTABLE].handle,
    312				&priv->smu_tables.entry[AVFSTABLE].mc_addr,
    313				&priv->smu_tables.entry[AVFSTABLE].table);
    314err1:
    315	amdgpu_bo_free_kernel(&priv->smu_tables.entry[WMTABLE].handle,
    316				&priv->smu_tables.entry[WMTABLE].mc_addr,
    317				&priv->smu_tables.entry[WMTABLE].table);
    318err0:
    319	amdgpu_bo_free_kernel(&priv->smu_tables.entry[PPTABLE].handle,
    320			&priv->smu_tables.entry[PPTABLE].mc_addr,
    321			&priv->smu_tables.entry[PPTABLE].table);
    322free_backend:
    323	kfree(hwmgr->smu_backend);
    324
    325	return -EINVAL;
    326}
    327
    328static int vega10_smu_fini(struct pp_hwmgr *hwmgr)
    329{
    330	struct vega10_smumgr *priv = hwmgr->smu_backend;
    331
    332	if (priv) {
    333		amdgpu_bo_free_kernel(&priv->smu_tables.entry[PPTABLE].handle,
    334				&priv->smu_tables.entry[PPTABLE].mc_addr,
    335				&priv->smu_tables.entry[PPTABLE].table);
    336		amdgpu_bo_free_kernel(&priv->smu_tables.entry[WMTABLE].handle,
    337					&priv->smu_tables.entry[WMTABLE].mc_addr,
    338					&priv->smu_tables.entry[WMTABLE].table);
    339		amdgpu_bo_free_kernel(&priv->smu_tables.entry[AVFSTABLE].handle,
    340					&priv->smu_tables.entry[AVFSTABLE].mc_addr,
    341					&priv->smu_tables.entry[AVFSTABLE].table);
    342		if (priv->smu_tables.entry[TOOLSTABLE].table)
    343			amdgpu_bo_free_kernel(&priv->smu_tables.entry[TOOLSTABLE].handle,
    344					&priv->smu_tables.entry[TOOLSTABLE].mc_addr,
    345					&priv->smu_tables.entry[TOOLSTABLE].table);
    346		amdgpu_bo_free_kernel(&priv->smu_tables.entry[AVFSFUSETABLE].handle,
    347					&priv->smu_tables.entry[AVFSFUSETABLE].mc_addr,
    348					&priv->smu_tables.entry[AVFSFUSETABLE].table);
    349		kfree(hwmgr->smu_backend);
    350		hwmgr->smu_backend = NULL;
    351	}
    352	return 0;
    353}
    354
    355static int vega10_start_smu(struct pp_hwmgr *hwmgr)
    356{
    357	if (!smu9_is_smc_ram_running(hwmgr))
    358		return -EINVAL;
    359
    360	PP_ASSERT_WITH_CODE(!vega10_verify_smc_interface(hwmgr),
    361			"Failed to verify SMC interface!",
    362			return -EINVAL);
    363
    364	vega10_set_tools_address(hwmgr);
    365
    366	return 0;
    367}
    368
    369static int vega10_smc_table_manager(struct pp_hwmgr *hwmgr, uint8_t *table,
    370				    uint16_t table_id, bool rw)
    371{
    372	int ret;
    373
    374	if (rw)
    375		ret = vega10_copy_table_from_smc(hwmgr, table, table_id);
    376	else
    377		ret = vega10_copy_table_to_smc(hwmgr, table, table_id);
    378
    379	return ret;
    380}
    381
    382const struct pp_smumgr_func vega10_smu_funcs = {
    383	.name = "vega10_smu",
    384	.smu_init = &vega10_smu_init,
    385	.smu_fini = &vega10_smu_fini,
    386	.start_smu = &vega10_start_smu,
    387	.request_smu_load_specific_fw = NULL,
    388	.send_msg_to_smc = &smu9_send_msg_to_smc,
    389	.send_msg_to_smc_with_parameter = &smu9_send_msg_to_smc_with_parameter,
    390	.download_pptable_settings = NULL,
    391	.upload_pptable_settings = NULL,
    392	.is_dpm_running = vega10_is_dpm_running,
    393	.get_argument = smu9_get_argument,
    394	.smc_table_manager = vega10_smc_table_manager,
    395};