From 2c3c1048746a4622d8c89a29670120dc8fab93c4 Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Sun, 7 Apr 2024 20:49:45 +0200 Subject: Adding upstream version 6.1.76. Signed-off-by: Daniel Baumann --- drivers/crypto/qat/qat_common/adf_admin.c | 362 ++++++++++++++++++++++++++++++ 1 file changed, 362 insertions(+) create mode 100644 drivers/crypto/qat/qat_common/adf_admin.c (limited to 'drivers/crypto/qat/qat_common/adf_admin.c') diff --git a/drivers/crypto/qat/qat_common/adf_admin.c b/drivers/crypto/qat/qat_common/adf_admin.c new file mode 100644 index 000000000..3b6184c35 --- /dev/null +++ b/drivers/crypto/qat/qat_common/adf_admin.c @@ -0,0 +1,362 @@ +// SPDX-License-Identifier: (BSD-3-Clause OR GPL-2.0-only) +/* Copyright(c) 2014 - 2020 Intel Corporation */ +#include +#include +#include +#include +#include +#include +#include "adf_accel_devices.h" +#include "adf_common_drv.h" +#include "icp_qat_fw_init_admin.h" + +#define ADF_ADMIN_MAILBOX_STRIDE 0x1000 +#define ADF_ADMINMSG_LEN 32 +#define ADF_CONST_TABLE_SIZE 1024 +#define ADF_ADMIN_POLL_DELAY_US 20 +#define ADF_ADMIN_POLL_TIMEOUT_US (5 * USEC_PER_SEC) + +static const u8 const_tab[1024] 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0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, +0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, +0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, +0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00}; + +struct adf_admin_comms { + dma_addr_t phy_addr; + dma_addr_t const_tbl_addr; + void *virt_addr; + void *virt_tbl_addr; + void __iomem *mailbox_addr; + struct mutex lock; /* protects adf_admin_comms struct */ +}; + +static int adf_put_admin_msg_sync(struct adf_accel_dev *accel_dev, u32 ae, + void *in, void *out) +{ + int ret; + u32 status; + struct adf_admin_comms *admin = accel_dev->admin; + int offset = ae * ADF_ADMINMSG_LEN * 2; + void __iomem *mailbox = admin->mailbox_addr; + int mb_offset = ae * ADF_ADMIN_MAILBOX_STRIDE; + struct icp_qat_fw_init_admin_req *request = in; + + mutex_lock(&admin->lock); + + if (ADF_CSR_RD(mailbox, mb_offset) == 1) { + mutex_unlock(&admin->lock); + return -EAGAIN; + } + + memcpy(admin->virt_addr + offset, in, ADF_ADMINMSG_LEN); + ADF_CSR_WR(mailbox, mb_offset, 1); + + ret = read_poll_timeout(ADF_CSR_RD, status, status == 0, + ADF_ADMIN_POLL_DELAY_US, + ADF_ADMIN_POLL_TIMEOUT_US, true, + mailbox, mb_offset); + if (ret < 0) { + /* Response timeout */ + dev_err(&GET_DEV(accel_dev), + "Failed to send admin msg %d to accelerator %d\n", + request->cmd_id, ae); + } else { + /* Response received from admin message, we can now + * make response data available in "out" parameter. + */ + memcpy(out, admin->virt_addr + offset + + ADF_ADMINMSG_LEN, ADF_ADMINMSG_LEN); + } + + mutex_unlock(&admin->lock); + return ret; +} + +static int adf_send_admin(struct adf_accel_dev *accel_dev, + struct icp_qat_fw_init_admin_req *req, + struct icp_qat_fw_init_admin_resp *resp, + const unsigned long ae_mask) +{ + u32 ae; + + for_each_set_bit(ae, &ae_mask, ICP_QAT_HW_AE_DELIMITER) + if (adf_put_admin_msg_sync(accel_dev, ae, req, resp) || + resp->status) + return -EFAULT; + + return 0; +} + +static int adf_init_ae(struct adf_accel_dev *accel_dev) +{ + struct icp_qat_fw_init_admin_req req; + struct icp_qat_fw_init_admin_resp resp; + struct adf_hw_device_data *hw_device = accel_dev->hw_device; + u32 ae_mask = hw_device->ae_mask; + + memset(&req, 0, sizeof(req)); + memset(&resp, 0, sizeof(resp)); + req.cmd_id = ICP_QAT_FW_INIT_AE; + + return adf_send_admin(accel_dev, &req, &resp, ae_mask); +} + +static int adf_set_fw_constants(struct adf_accel_dev *accel_dev) +{ + struct icp_qat_fw_init_admin_req req; + struct icp_qat_fw_init_admin_resp resp; + struct adf_hw_device_data *hw_device = accel_dev->hw_device; + u32 ae_mask = hw_device->admin_ae_mask ?: hw_device->ae_mask; + + memset(&req, 0, sizeof(req)); + memset(&resp, 0, sizeof(resp)); + req.cmd_id = ICP_QAT_FW_CONSTANTS_CFG; + + req.init_cfg_sz = ADF_CONST_TABLE_SIZE; + req.init_cfg_ptr = accel_dev->admin->const_tbl_addr; + + return adf_send_admin(accel_dev, &req, &resp, ae_mask); +} + +static int adf_get_dc_capabilities(struct adf_accel_dev *accel_dev, + u32 *capabilities) +{ + struct adf_hw_device_data *hw_device = accel_dev->hw_device; + struct icp_qat_fw_init_admin_resp resp; + struct icp_qat_fw_init_admin_req req; + unsigned long ae_mask; + unsigned long ae; + int ret; + + /* Target only service accelerator engines */ + ae_mask = hw_device->ae_mask & ~hw_device->admin_ae_mask; + + memset(&req, 0, sizeof(req)); + memset(&resp, 0, sizeof(resp)); + req.cmd_id = ICP_QAT_FW_COMP_CAPABILITY_GET; + + *capabilities = 0; + for_each_set_bit(ae, &ae_mask, GET_MAX_ACCELENGINES(accel_dev)) { + ret = adf_send_admin(accel_dev, &req, &resp, 1ULL << ae); + if (ret) + return ret; + + *capabilities |= resp.extended_features; + } + + return 0; +} + +/** + * adf_send_admin_init() - Function sends init message to FW + * @accel_dev: Pointer to acceleration device. + * + * Function sends admin init message to the FW + * + * Return: 0 on success, error code otherwise. + */ +int adf_send_admin_init(struct adf_accel_dev *accel_dev) +{ + u32 dc_capabilities = 0; + int ret; + + ret = adf_get_dc_capabilities(accel_dev, &dc_capabilities); + if (ret) { + dev_err(&GET_DEV(accel_dev), "Cannot get dc capabilities\n"); + return ret; + } + accel_dev->hw_device->extended_dc_capabilities = dc_capabilities; + + ret = adf_set_fw_constants(accel_dev); + if (ret) + return ret; + + return adf_init_ae(accel_dev); +} +EXPORT_SYMBOL_GPL(adf_send_admin_init); + +/** + * adf_init_admin_pm() - Function sends PM init message to FW + * @accel_dev: Pointer to acceleration device. + * @idle_delay: QAT HW idle time before power gating is initiated. + * 000 - 64us + * 001 - 128us + * 010 - 256us + * 011 - 512us + * 100 - 1ms + * 101 - 2ms + * 110 - 4ms + * 111 - 8ms + * + * Function sends to the FW the admin init message for the PM state + * configuration. + * + * Return: 0 on success, error code otherwise. + */ +int adf_init_admin_pm(struct adf_accel_dev *accel_dev, u32 idle_delay) +{ + struct adf_hw_device_data *hw_data = accel_dev->hw_device; + struct icp_qat_fw_init_admin_resp resp = {0}; + struct icp_qat_fw_init_admin_req req = {0}; + u32 ae_mask = hw_data->admin_ae_mask; + + if (!accel_dev->admin) { + dev_err(&GET_DEV(accel_dev), "adf_admin is not available\n"); + return -EFAULT; + } + + req.cmd_id = ICP_QAT_FW_PM_STATE_CONFIG; + req.idle_filter = idle_delay; + + return adf_send_admin(accel_dev, &req, &resp, ae_mask); +} +EXPORT_SYMBOL_GPL(adf_init_admin_pm); + +int adf_init_admin_comms(struct adf_accel_dev *accel_dev) +{ + struct adf_admin_comms *admin; + struct adf_hw_device_data *hw_data = accel_dev->hw_device; + void __iomem *pmisc_addr = adf_get_pmisc_base(accel_dev); + struct admin_info admin_csrs_info; + u32 mailbox_offset, adminmsg_u, adminmsg_l; + void __iomem *mailbox; + u64 reg_val; + + admin = kzalloc_node(sizeof(*accel_dev->admin), GFP_KERNEL, + dev_to_node(&GET_DEV(accel_dev))); + if (!admin) + return -ENOMEM; + admin->virt_addr = dma_alloc_coherent(&GET_DEV(accel_dev), PAGE_SIZE, + &admin->phy_addr, GFP_KERNEL); + if (!admin->virt_addr) { + dev_err(&GET_DEV(accel_dev), "Failed to allocate dma buff\n"); + kfree(admin); + return -ENOMEM; + } + + admin->virt_tbl_addr = dma_alloc_coherent(&GET_DEV(accel_dev), + PAGE_SIZE, + &admin->const_tbl_addr, + GFP_KERNEL); + if (!admin->virt_tbl_addr) { + dev_err(&GET_DEV(accel_dev), "Failed to allocate const_tbl\n"); + dma_free_coherent(&GET_DEV(accel_dev), PAGE_SIZE, + admin->virt_addr, admin->phy_addr); + kfree(admin); + return -ENOMEM; + } + + memcpy(admin->virt_tbl_addr, const_tab, sizeof(const_tab)); + hw_data->get_admin_info(&admin_csrs_info); + + mailbox_offset = admin_csrs_info.mailbox_offset; + mailbox = pmisc_addr + mailbox_offset; + adminmsg_u = admin_csrs_info.admin_msg_ur; + adminmsg_l = admin_csrs_info.admin_msg_lr; + + reg_val = (u64)admin->phy_addr; + ADF_CSR_WR(pmisc_addr, adminmsg_u, upper_32_bits(reg_val)); + ADF_CSR_WR(pmisc_addr, adminmsg_l, lower_32_bits(reg_val)); + + mutex_init(&admin->lock); + admin->mailbox_addr = mailbox; + accel_dev->admin = admin; + return 0; +} +EXPORT_SYMBOL_GPL(adf_init_admin_comms); + +void adf_exit_admin_comms(struct adf_accel_dev *accel_dev) +{ + struct adf_admin_comms *admin = accel_dev->admin; + + if (!admin) + return; + + if (admin->virt_addr) + dma_free_coherent(&GET_DEV(accel_dev), PAGE_SIZE, + admin->virt_addr, admin->phy_addr); + if (admin->virt_tbl_addr) + dma_free_coherent(&GET_DEV(accel_dev), PAGE_SIZE, + admin->virt_tbl_addr, admin->const_tbl_addr); + + mutex_destroy(&admin->lock); + kfree(admin); + accel_dev->admin = NULL; +} +EXPORT_SYMBOL_GPL(adf_exit_admin_comms); -- cgit v1.2.3