/*
 * Copyright 2017 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 "smumgr.h"
#include "vega12_inc.h"
#include "soc15_common.h"
#include "smu9_smumgr.h"
#include "vega12_smumgr.h"
#include "vega12_ppsmc.h"
#include "vega12/smu9_driver_if.h"
#include "ppatomctrl.h"
#include "pp_debug.h"


/*
 * Copy table from SMC into driver FB
 * @param   hwmgr    the address of the HW manager
 * @param   table_id    the driver's table ID to copy from
 */
static int vega12_copy_table_from_smc(struct pp_hwmgr *hwmgr,
                                      uint8_t *table, int16_t table_id)
{
        struct vega12_smumgr *priv =
                        (struct vega12_smumgr *)(hwmgr->smu_backend);
        struct amdgpu_device *adev = hwmgr->adev;

        PP_ASSERT_WITH_CODE(table_id < TABLE_COUNT,
                        "Invalid SMU Table ID!", return -EINVAL);
        PP_ASSERT_WITH_CODE(priv->smu_tables.entry[table_id].version != 0,
                        "Invalid SMU Table version!", return -EINVAL);
        PP_ASSERT_WITH_CODE(priv->smu_tables.entry[table_id].size != 0,
                        "Invalid SMU Table Length!", return -EINVAL);
        PP_ASSERT_WITH_CODE(smum_send_msg_to_smc_with_parameter(hwmgr,
                        PPSMC_MSG_SetDriverDramAddrHigh,
                        upper_32_bits(priv->smu_tables.entry[table_id].mc_addr),
                        NULL) == 0,
                        "[CopyTableFromSMC] Attempt to Set Dram Addr High Failed!", return -EINVAL);
        PP_ASSERT_WITH_CODE(smum_send_msg_to_smc_with_parameter(hwmgr,
                        PPSMC_MSG_SetDriverDramAddrLow,
                        lower_32_bits(priv->smu_tables.entry[table_id].mc_addr),
                        NULL) == 0,
                        "[CopyTableFromSMC] Attempt to Set Dram Addr Low Failed!",
                        return -EINVAL);
        PP_ASSERT_WITH_CODE(smum_send_msg_to_smc_with_parameter(hwmgr,
                        PPSMC_MSG_TransferTableSmu2Dram,
                        table_id,
                        NULL) == 0,
                        "[CopyTableFromSMC] Attempt to Transfer Table From SMU Failed!",
                        return -EINVAL);

        amdgpu_hdp_invalidate(adev, NULL);

        memcpy(table, priv->smu_tables.entry[table_id].table,
                        priv->smu_tables.entry[table_id].size);

        return 0;
}

/*
 * Copy table from Driver FB into SMC
 * @param   hwmgr    the address of the HW manager
 * @param   table_id    the table to copy from
 */
static int vega12_copy_table_to_smc(struct pp_hwmgr *hwmgr,
                                    uint8_t *table, int16_t table_id)
{
        struct vega12_smumgr *priv =
                        (struct vega12_smumgr *)(hwmgr->smu_backend);
        struct amdgpu_device *adev = hwmgr->adev;

        PP_ASSERT_WITH_CODE(table_id < TABLE_COUNT,
                        "Invalid SMU Table ID!", return -EINVAL);
        PP_ASSERT_WITH_CODE(priv->smu_tables.entry[table_id].version != 0,
                        "Invalid SMU Table version!", return -EINVAL);
        PP_ASSERT_WITH_CODE(priv->smu_tables.entry[table_id].size != 0,
                        "Invalid SMU Table Length!", return -EINVAL);

        memcpy(priv->smu_tables.entry[table_id].table, table,
                        priv->smu_tables.entry[table_id].size);

        amdgpu_hdp_flush(adev, NULL);

        PP_ASSERT_WITH_CODE(smum_send_msg_to_smc_with_parameter(hwmgr,
                        PPSMC_MSG_SetDriverDramAddrHigh,
                        upper_32_bits(priv->smu_tables.entry[table_id].mc_addr),
                        NULL) == 0,
                        "[CopyTableToSMC] Attempt to Set Dram Addr High Failed!",
                        return -EINVAL;);
        PP_ASSERT_WITH_CODE(smum_send_msg_to_smc_with_parameter(hwmgr,
                        PPSMC_MSG_SetDriverDramAddrLow,
                        lower_32_bits(priv->smu_tables.entry[table_id].mc_addr),
                        NULL) == 0,
                        "[CopyTableToSMC] Attempt to Set Dram Addr Low Failed!",
                        return -EINVAL);
        PP_ASSERT_WITH_CODE(smum_send_msg_to_smc_with_parameter(hwmgr,
                        PPSMC_MSG_TransferTableDram2Smu,
                        table_id,
                        NULL) == 0,
                        "[CopyTableToSMC] Attempt to Transfer Table To SMU Failed!",
                        return -EINVAL);

        return 0;
}

int vega12_enable_smc_features(struct pp_hwmgr *hwmgr,
                bool enable, uint64_t feature_mask)
{
        uint32_t smu_features_low, smu_features_high;

        smu_features_low = (uint32_t)((feature_mask & SMU_FEATURES_LOW_MASK) >> SMU_FEATURES_LOW_SHIFT);
        smu_features_high = (uint32_t)((feature_mask & SMU_FEATURES_HIGH_MASK) >> SMU_FEATURES_HIGH_SHIFT);

        if (enable) {
                PP_ASSERT_WITH_CODE(smum_send_msg_to_smc_with_parameter(hwmgr,
                                PPSMC_MSG_EnableSmuFeaturesLow, smu_features_low, NULL) == 0,
                                "[EnableDisableSMCFeatures] Attempt to enable SMU features Low failed!",
                                return -EINVAL);
                PP_ASSERT_WITH_CODE(smum_send_msg_to_smc_with_parameter(hwmgr,
                                PPSMC_MSG_EnableSmuFeaturesHigh, smu_features_high, NULL) == 0,
                                "[EnableDisableSMCFeatures] Attempt to enable SMU features High failed!",
                                return -EINVAL);
        } else {
                PP_ASSERT_WITH_CODE(smum_send_msg_to_smc_with_parameter(hwmgr,
                                PPSMC_MSG_DisableSmuFeaturesLow, smu_features_low, NULL) == 0,
                                "[EnableDisableSMCFeatures] Attempt to disable SMU features Low failed!",
                                return -EINVAL);
                PP_ASSERT_WITH_CODE(smum_send_msg_to_smc_with_parameter(hwmgr,
                                PPSMC_MSG_DisableSmuFeaturesHigh, smu_features_high, NULL) == 0,
                                "[EnableDisableSMCFeatures] Attempt to disable SMU features High failed!",
                                return -EINVAL);
        }

        return 0;
}

int vega12_get_enabled_smc_features(struct pp_hwmgr *hwmgr,
                uint64_t *features_enabled)
{
        uint32_t smc_features_low, smc_features_high;

        if (features_enabled == NULL)
                return -EINVAL;

        PP_ASSERT_WITH_CODE(smum_send_msg_to_smc(hwmgr,
                        PPSMC_MSG_GetEnabledSmuFeaturesLow,
                        &smc_features_low) == 0,
                        "[GetEnabledSMCFeatures] Attempt to get SMU features Low failed!",
                        return -EINVAL);

        PP_ASSERT_WITH_CODE(smum_send_msg_to_smc(hwmgr,
                        PPSMC_MSG_GetEnabledSmuFeaturesHigh,
                        &smc_features_high) == 0,
                        "[GetEnabledSMCFeatures] Attempt to get SMU features High failed!",
                        return -EINVAL);

        *features_enabled = ((((uint64_t)smc_features_low << SMU_FEATURES_LOW_SHIFT) & SMU_FEATURES_LOW_MASK) |
                        (((uint64_t)smc_features_high << SMU_FEATURES_HIGH_SHIFT) & SMU_FEATURES_HIGH_MASK));

        return 0;
}

static bool vega12_is_dpm_running(struct pp_hwmgr *hwmgr)
{
        uint64_t features_enabled = 0;

        vega12_get_enabled_smc_features(hwmgr, &features_enabled);

        if (features_enabled & SMC_DPM_FEATURES)
                return true;
        else
                return false;
}

static int vega12_set_tools_address(struct pp_hwmgr *hwmgr)
{
        struct vega12_smumgr *priv =
                        (struct vega12_smumgr *)(hwmgr->smu_backend);

        if (priv->smu_tables.entry[TABLE_PMSTATUSLOG].mc_addr) {
                if (!smum_send_msg_to_smc_with_parameter(hwmgr,
                                PPSMC_MSG_SetToolsDramAddrHigh,
                                upper_32_bits(priv->smu_tables.entry[TABLE_PMSTATUSLOG].mc_addr),
                                NULL))
                        smum_send_msg_to_smc_with_parameter(hwmgr,
                                        PPSMC_MSG_SetToolsDramAddrLow,
                                        lower_32_bits(priv->smu_tables.entry[TABLE_PMSTATUSLOG].mc_addr),
                                        NULL);
        }
        return 0;
}

static int vega12_smu_init(struct pp_hwmgr *hwmgr)
{
        struct vega12_smumgr *priv;
        unsigned long tools_size;
        struct cgs_firmware_info info = {0};
        int ret;

        ret = cgs_get_firmware_info(hwmgr->device, CGS_UCODE_ID_SMU,
                                &info);
        if (ret || !info.kptr)
                return -EINVAL;

        priv = kzalloc_obj(struct vega12_smumgr);
        if (!priv)
                return -ENOMEM;

        hwmgr->smu_backend = priv;

        /* allocate space for pptable */
        ret = amdgpu_bo_create_kernel((struct amdgpu_device *)hwmgr->adev,
                        sizeof(PPTable_t),
                        PAGE_SIZE,
                        AMDGPU_GEM_DOMAIN_VRAM,
                        &priv->smu_tables.entry[TABLE_PPTABLE].handle,
                        &priv->smu_tables.entry[TABLE_PPTABLE].mc_addr,
                        &priv->smu_tables.entry[TABLE_PPTABLE].table);
        if (ret)
                goto free_backend;

        priv->smu_tables.entry[TABLE_PPTABLE].version = 0x01;
        priv->smu_tables.entry[TABLE_PPTABLE].size = sizeof(PPTable_t);

        /* allocate space for watermarks table */
        ret = amdgpu_bo_create_kernel((struct amdgpu_device *)hwmgr->adev,
                                      sizeof(Watermarks_t),
                                      PAGE_SIZE,
                                      AMDGPU_GEM_DOMAIN_VRAM,
                                      &priv->smu_tables.entry[TABLE_WATERMARKS].handle,
                                      &priv->smu_tables.entry[TABLE_WATERMARKS].mc_addr,
                                      &priv->smu_tables.entry[TABLE_WATERMARKS].table);

        if (ret)
                goto err0;

        priv->smu_tables.entry[TABLE_WATERMARKS].version = 0x01;
        priv->smu_tables.entry[TABLE_WATERMARKS].size = sizeof(Watermarks_t);

        tools_size = 0x19000;
        ret = amdgpu_bo_create_kernel((struct amdgpu_device *)hwmgr->adev,
                                      tools_size,
                                      PAGE_SIZE,
                                      AMDGPU_GEM_DOMAIN_VRAM,
                                      &priv->smu_tables.entry[TABLE_PMSTATUSLOG].handle,
                                      &priv->smu_tables.entry[TABLE_PMSTATUSLOG].mc_addr,
                                      &priv->smu_tables.entry[TABLE_PMSTATUSLOG].table);
        if (ret)
                goto err1;

        priv->smu_tables.entry[TABLE_PMSTATUSLOG].version = 0x01;
        priv->smu_tables.entry[TABLE_PMSTATUSLOG].size = tools_size;

        /* allocate space for AVFS Fuse table */
        ret = amdgpu_bo_create_kernel((struct amdgpu_device *)hwmgr->adev,
                                      sizeof(AvfsFuseOverride_t),
                                      PAGE_SIZE,
                                      AMDGPU_GEM_DOMAIN_VRAM,
                                      &priv->smu_tables.entry[TABLE_AVFS_FUSE_OVERRIDE].handle,
                                      &priv->smu_tables.entry[TABLE_AVFS_FUSE_OVERRIDE].mc_addr,
                                      &priv->smu_tables.entry[TABLE_AVFS_FUSE_OVERRIDE].table);

        if (ret)
                goto err2;

        priv->smu_tables.entry[TABLE_AVFS_FUSE_OVERRIDE].version = 0x01;
        priv->smu_tables.entry[TABLE_AVFS_FUSE_OVERRIDE].size = sizeof(AvfsFuseOverride_t);

        /* allocate space for OverDrive table */
        ret = amdgpu_bo_create_kernel((struct amdgpu_device *)hwmgr->adev,
                                      sizeof(OverDriveTable_t),
                                      PAGE_SIZE,
                                      AMDGPU_GEM_DOMAIN_VRAM,
                                      &priv->smu_tables.entry[TABLE_OVERDRIVE].handle,
                                      &priv->smu_tables.entry[TABLE_OVERDRIVE].mc_addr,
                                      &priv->smu_tables.entry[TABLE_OVERDRIVE].table);
        if (ret)
                goto err3;

        priv->smu_tables.entry[TABLE_OVERDRIVE].version = 0x01;
        priv->smu_tables.entry[TABLE_OVERDRIVE].size = sizeof(OverDriveTable_t);

        /* allocate space for SMU_METRICS table */
        ret = amdgpu_bo_create_kernel((struct amdgpu_device *)hwmgr->adev,
                                      sizeof(SmuMetrics_t),
                                      PAGE_SIZE,
                                      AMDGPU_GEM_DOMAIN_VRAM,
                                      &priv->smu_tables.entry[TABLE_SMU_METRICS].handle,
                                      &priv->smu_tables.entry[TABLE_SMU_METRICS].mc_addr,
                                      &priv->smu_tables.entry[TABLE_SMU_METRICS].table);
        if (ret)
                goto err4;

        priv->smu_tables.entry[TABLE_SMU_METRICS].version = 0x01;
        priv->smu_tables.entry[TABLE_SMU_METRICS].size = sizeof(SmuMetrics_t);

        return 0;

err4:
        amdgpu_bo_free_kernel(&priv->smu_tables.entry[TABLE_OVERDRIVE].handle,
                                &priv->smu_tables.entry[TABLE_OVERDRIVE].mc_addr,
                                &priv->smu_tables.entry[TABLE_OVERDRIVE].table);
err3:
        amdgpu_bo_free_kernel(&priv->smu_tables.entry[TABLE_AVFS_FUSE_OVERRIDE].handle,
                                &priv->smu_tables.entry[TABLE_AVFS_FUSE_OVERRIDE].mc_addr,
                                &priv->smu_tables.entry[TABLE_AVFS_FUSE_OVERRIDE].table);
err2:
        if (priv->smu_tables.entry[TABLE_PMSTATUSLOG].table)
                amdgpu_bo_free_kernel(&priv->smu_tables.entry[TABLE_PMSTATUSLOG].handle,
                                &priv->smu_tables.entry[TABLE_PMSTATUSLOG].mc_addr,
                                &priv->smu_tables.entry[TABLE_PMSTATUSLOG].table);
err1:
        amdgpu_bo_free_kernel(&priv->smu_tables.entry[TABLE_WATERMARKS].handle,
                                &priv->smu_tables.entry[TABLE_WATERMARKS].mc_addr,
                                &priv->smu_tables.entry[TABLE_WATERMARKS].table);
err0:
        amdgpu_bo_free_kernel(&priv->smu_tables.entry[TABLE_PPTABLE].handle,
                        &priv->smu_tables.entry[TABLE_PPTABLE].mc_addr,
                        &priv->smu_tables.entry[TABLE_PPTABLE].table);
free_backend:
        kfree(hwmgr->smu_backend);

        return -EINVAL;
}

static int vega12_smu_fini(struct pp_hwmgr *hwmgr)
{
        struct vega12_smumgr *priv =
                        (struct vega12_smumgr *)(hwmgr->smu_backend);

        if (priv) {
                amdgpu_bo_free_kernel(&priv->smu_tables.entry[TABLE_PPTABLE].handle,
                                      &priv->smu_tables.entry[TABLE_PPTABLE].mc_addr,
                                      &priv->smu_tables.entry[TABLE_PPTABLE].table);
                amdgpu_bo_free_kernel(&priv->smu_tables.entry[TABLE_WATERMARKS].handle,
                                      &priv->smu_tables.entry[TABLE_WATERMARKS].mc_addr,
                                      &priv->smu_tables.entry[TABLE_WATERMARKS].table);
                if (priv->smu_tables.entry[TABLE_PMSTATUSLOG].table)
                        amdgpu_bo_free_kernel(&priv->smu_tables.entry[TABLE_PMSTATUSLOG].handle,
                                              &priv->smu_tables.entry[TABLE_PMSTATUSLOG].mc_addr,
                                              &priv->smu_tables.entry[TABLE_PMSTATUSLOG].table);
                amdgpu_bo_free_kernel(&priv->smu_tables.entry[TABLE_AVFS_FUSE_OVERRIDE].handle,
                                      &priv->smu_tables.entry[TABLE_AVFS_FUSE_OVERRIDE].mc_addr,
                                      &priv->smu_tables.entry[TABLE_AVFS_FUSE_OVERRIDE].table);
                amdgpu_bo_free_kernel(&priv->smu_tables.entry[TABLE_OVERDRIVE].handle,
                                      &priv->smu_tables.entry[TABLE_OVERDRIVE].mc_addr,
                                      &priv->smu_tables.entry[TABLE_OVERDRIVE].table);
                amdgpu_bo_free_kernel(&priv->smu_tables.entry[TABLE_SMU_METRICS].handle,
                                      &priv->smu_tables.entry[TABLE_SMU_METRICS].mc_addr,
                                      &priv->smu_tables.entry[TABLE_SMU_METRICS].table);
                kfree(hwmgr->smu_backend);
                hwmgr->smu_backend = NULL;
        }
        return 0;
}

static int vega12_start_smu(struct pp_hwmgr *hwmgr)
{
        PP_ASSERT_WITH_CODE(smu9_is_smc_ram_running(hwmgr),
                        "SMC is not running!",
                        return -EINVAL);

        vega12_set_tools_address(hwmgr);

        return 0;
}

static int vega12_smc_table_manager(struct pp_hwmgr *hwmgr, uint8_t *table,
                                    uint16_t table_id, bool rw)
{
        int ret;

        if (rw)
                ret = vega12_copy_table_from_smc(hwmgr, table, table_id);
        else
                ret = vega12_copy_table_to_smc(hwmgr, table, table_id);

        return ret;
}

const struct pp_smumgr_func vega12_smu_funcs = {
        .name = "vega12_smu",
        .smu_init = &vega12_smu_init,
        .smu_fini = &vega12_smu_fini,
        .start_smu = &vega12_start_smu,
        .request_smu_load_specific_fw = NULL,
        .send_msg_to_smc = &smu9_send_msg_to_smc,
        .send_msg_to_smc_with_parameter = &smu9_send_msg_to_smc_with_parameter,
        .download_pptable_settings = NULL,
        .upload_pptable_settings = NULL,
        .is_dpm_running = vega12_is_dpm_running,
        .get_argument = smu9_get_argument,
        .smc_table_manager = vega12_smc_table_manager,
};