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path: root/drivers/crypto/qat/qat_common/adf_gen4_pfvf.c
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Diffstat (limited to 'drivers/crypto/qat/qat_common/adf_gen4_pfvf.c')
-rw-r--r--drivers/crypto/qat/qat_common/adf_gen4_pfvf.c148
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);