diff options
Diffstat (limited to 'drivers/crypto/qat/qat_common/adf_gen4_pfvf.c')
| -rw-r--r-- | drivers/crypto/qat/qat_common/adf_gen4_pfvf.c | 148 |
1 files changed, 0 insertions, 148 deletions
diff --git a/drivers/crypto/qat/qat_common/adf_gen4_pfvf.c b/drivers/crypto/qat/qat_common/adf_gen4_pfvf.c deleted file mode 100644 index 8efbedf63bc8..000000000000 --- a/drivers/crypto/qat/qat_common/adf_gen4_pfvf.c +++ /dev/null @@ -1,148 +0,0 @@ -// SPDX-License-Identifier: (BSD-3-Clause OR GPL-2.0-only) -/* Copyright(c) 2021 Intel Corporation */ -#include <linux/iopoll.h> -#include <linux/mutex.h> -#include <linux/types.h> -#include "adf_accel_devices.h" -#include "adf_common_drv.h" -#include "adf_gen4_pfvf.h" -#include "adf_pfvf_pf_proto.h" -#include "adf_pfvf_utils.h" - -#define ADF_4XXX_MAX_NUM_VFS 16 - -#define ADF_4XXX_PF2VM_OFFSET(i) (0x40B010 + ((i) * 0x20)) -#define ADF_4XXX_VM2PF_OFFSET(i) (0x40B014 + ((i) * 0x20)) - -/* VF2PF interrupt source registers */ -#define ADF_4XXX_VM2PF_SOU(i) (0x41A180 + ((i) * 4)) -#define ADF_4XXX_VM2PF_MSK(i) (0x41A1C0 + ((i) * 4)) -#define ADF_4XXX_VM2PF_INT_EN_MSK BIT(0) - -#define ADF_PFVF_GEN4_MSGTYPE_SHIFT 2 -#define ADF_PFVF_GEN4_MSGTYPE_MASK 0x3F -#define ADF_PFVF_GEN4_MSGDATA_SHIFT 8 -#define ADF_PFVF_GEN4_MSGDATA_MASK 0xFFFFFF - -static const struct pfvf_csr_format csr_gen4_fmt = { - { ADF_PFVF_GEN4_MSGTYPE_SHIFT, ADF_PFVF_GEN4_MSGTYPE_MASK }, - { ADF_PFVF_GEN4_MSGDATA_SHIFT, ADF_PFVF_GEN4_MSGDATA_MASK }, -}; - -static u32 adf_gen4_pf_get_pf2vf_offset(u32 i) -{ - return ADF_4XXX_PF2VM_OFFSET(i); -} - -static u32 adf_gen4_pf_get_vf2pf_offset(u32 i) -{ - return ADF_4XXX_VM2PF_OFFSET(i); -} - -static u32 adf_gen4_get_vf2pf_sources(void __iomem *pmisc_addr) -{ - int i; - u32 sou, mask; - int num_csrs = ADF_4XXX_MAX_NUM_VFS; - u32 vf_mask = 0; - - for (i = 0; i < num_csrs; i++) { - sou = ADF_CSR_RD(pmisc_addr, ADF_4XXX_VM2PF_SOU(i)); - mask = ADF_CSR_RD(pmisc_addr, ADF_4XXX_VM2PF_MSK(i)); - sou &= ~mask; - vf_mask |= sou << i; - } - - return vf_mask; -} - -static void adf_gen4_enable_vf2pf_interrupts(void __iomem *pmisc_addr, - u32 vf_mask) -{ - int num_csrs = ADF_4XXX_MAX_NUM_VFS; - unsigned long mask = vf_mask; - unsigned int val; - int i; - - for_each_set_bit(i, &mask, num_csrs) { - unsigned int offset = ADF_4XXX_VM2PF_MSK(i); - - val = ADF_CSR_RD(pmisc_addr, offset) & ~ADF_4XXX_VM2PF_INT_EN_MSK; - ADF_CSR_WR(pmisc_addr, offset, val); - } -} - -static void adf_gen4_disable_vf2pf_interrupts(void __iomem *pmisc_addr, - u32 vf_mask) -{ - int num_csrs = ADF_4XXX_MAX_NUM_VFS; - unsigned long mask = vf_mask; - unsigned int val; - int i; - - for_each_set_bit(i, &mask, num_csrs) { - unsigned int offset = ADF_4XXX_VM2PF_MSK(i); - - val = ADF_CSR_RD(pmisc_addr, offset) | ADF_4XXX_VM2PF_INT_EN_MSK; - ADF_CSR_WR(pmisc_addr, offset, val); - } -} - -static int adf_gen4_pfvf_send(struct adf_accel_dev *accel_dev, - struct pfvf_message msg, u32 pfvf_offset, - struct mutex *csr_lock) -{ - void __iomem *pmisc_addr = adf_get_pmisc_base(accel_dev); - u32 csr_val; - int ret; - - csr_val = adf_pfvf_csr_msg_of(accel_dev, msg, &csr_gen4_fmt); - if (unlikely(!csr_val)) - return -EINVAL; - - mutex_lock(csr_lock); - - ADF_CSR_WR(pmisc_addr, pfvf_offset, csr_val | ADF_PFVF_INT); - - /* Wait for confirmation from remote that it received the message */ - ret = read_poll_timeout(ADF_CSR_RD, csr_val, !(csr_val & ADF_PFVF_INT), - ADF_PFVF_MSG_ACK_DELAY_US, - ADF_PFVF_MSG_ACK_MAX_DELAY_US, - true, pmisc_addr, pfvf_offset); - if (ret < 0) - dev_dbg(&GET_DEV(accel_dev), "ACK not received from remote\n"); - - mutex_unlock(csr_lock); - return ret; -} - -static struct pfvf_message adf_gen4_pfvf_recv(struct adf_accel_dev *accel_dev, - u32 pfvf_offset, u8 compat_ver) -{ - void __iomem *pmisc_addr = adf_get_pmisc_base(accel_dev); - u32 csr_val; - - /* Read message from the CSR */ - csr_val = ADF_CSR_RD(pmisc_addr, pfvf_offset); - - /* We can now acknowledge the message reception by clearing the - * interrupt bit - */ - ADF_CSR_WR(pmisc_addr, pfvf_offset, csr_val & ~ADF_PFVF_INT); - - /* Return the pfvf_message format */ - return adf_pfvf_message_of(accel_dev, csr_val, &csr_gen4_fmt); -} - -void adf_gen4_init_pf_pfvf_ops(struct adf_pfvf_ops *pfvf_ops) -{ - pfvf_ops->enable_comms = adf_enable_pf2vf_comms; - pfvf_ops->get_pf2vf_offset = adf_gen4_pf_get_pf2vf_offset; - pfvf_ops->get_vf2pf_offset = adf_gen4_pf_get_vf2pf_offset; - pfvf_ops->get_vf2pf_sources = adf_gen4_get_vf2pf_sources; - pfvf_ops->enable_vf2pf_interrupts = adf_gen4_enable_vf2pf_interrupts; - pfvf_ops->disable_vf2pf_interrupts = adf_gen4_disable_vf2pf_interrupts; - pfvf_ops->send_msg = adf_gen4_pfvf_send; - pfvf_ops->recv_msg = adf_gen4_pfvf_recv; -} -EXPORT_SYMBOL_GPL(adf_gen4_init_pf_pfvf_ops); |
