445 lines
11 KiB
C
445 lines
11 KiB
C
|
// SPDX-License-Identifier: GPL-2.0-only
|
||
|
/* Copyright (C) 2020 Marvell. */
|
||
|
|
||
|
#include "otx2_cpt_common.h"
|
||
|
#include "otx2_cptlf.h"
|
||
|
#include "rvu_reg.h"
|
||
|
|
||
|
#define CPT_TIMER_HOLD 0x03F
|
||
|
#define CPT_COUNT_HOLD 32
|
||
|
|
||
|
static void cptlf_do_set_done_time_wait(struct otx2_cptlf_info *lf,
|
||
|
int time_wait)
|
||
|
{
|
||
|
union otx2_cptx_lf_done_wait done_wait;
|
||
|
|
||
|
done_wait.u = otx2_cpt_read64(lf->lfs->reg_base, BLKADDR_CPT0, lf->slot,
|
||
|
OTX2_CPT_LF_DONE_WAIT);
|
||
|
done_wait.s.time_wait = time_wait;
|
||
|
otx2_cpt_write64(lf->lfs->reg_base, BLKADDR_CPT0, lf->slot,
|
||
|
OTX2_CPT_LF_DONE_WAIT, done_wait.u);
|
||
|
}
|
||
|
|
||
|
static void cptlf_do_set_done_num_wait(struct otx2_cptlf_info *lf, int num_wait)
|
||
|
{
|
||
|
union otx2_cptx_lf_done_wait done_wait;
|
||
|
|
||
|
done_wait.u = otx2_cpt_read64(lf->lfs->reg_base, BLKADDR_CPT0, lf->slot,
|
||
|
OTX2_CPT_LF_DONE_WAIT);
|
||
|
done_wait.s.num_wait = num_wait;
|
||
|
otx2_cpt_write64(lf->lfs->reg_base, BLKADDR_CPT0, lf->slot,
|
||
|
OTX2_CPT_LF_DONE_WAIT, done_wait.u);
|
||
|
}
|
||
|
|
||
|
static void cptlf_set_done_time_wait(struct otx2_cptlfs_info *lfs,
|
||
|
int time_wait)
|
||
|
{
|
||
|
int slot;
|
||
|
|
||
|
for (slot = 0; slot < lfs->lfs_num; slot++)
|
||
|
cptlf_do_set_done_time_wait(&lfs->lf[slot], time_wait);
|
||
|
}
|
||
|
|
||
|
static void cptlf_set_done_num_wait(struct otx2_cptlfs_info *lfs, int num_wait)
|
||
|
{
|
||
|
int slot;
|
||
|
|
||
|
for (slot = 0; slot < lfs->lfs_num; slot++)
|
||
|
cptlf_do_set_done_num_wait(&lfs->lf[slot], num_wait);
|
||
|
}
|
||
|
|
||
|
static int cptlf_set_pri(struct otx2_cptlf_info *lf, int pri)
|
||
|
{
|
||
|
struct otx2_cptlfs_info *lfs = lf->lfs;
|
||
|
union otx2_cptx_af_lf_ctrl lf_ctrl;
|
||
|
int ret;
|
||
|
|
||
|
ret = otx2_cpt_read_af_reg(lfs->mbox, lfs->pdev,
|
||
|
CPT_AF_LFX_CTL(lf->slot),
|
||
|
&lf_ctrl.u, lfs->blkaddr);
|
||
|
if (ret)
|
||
|
return ret;
|
||
|
|
||
|
lf_ctrl.s.pri = pri ? 1 : 0;
|
||
|
|
||
|
ret = otx2_cpt_write_af_reg(lfs->mbox, lfs->pdev,
|
||
|
CPT_AF_LFX_CTL(lf->slot),
|
||
|
lf_ctrl.u, lfs->blkaddr);
|
||
|
return ret;
|
||
|
}
|
||
|
|
||
|
static int cptlf_set_eng_grps_mask(struct otx2_cptlf_info *lf,
|
||
|
int eng_grps_mask)
|
||
|
{
|
||
|
struct otx2_cptlfs_info *lfs = lf->lfs;
|
||
|
union otx2_cptx_af_lf_ctrl lf_ctrl;
|
||
|
int ret;
|
||
|
|
||
|
ret = otx2_cpt_read_af_reg(lfs->mbox, lfs->pdev,
|
||
|
CPT_AF_LFX_CTL(lf->slot),
|
||
|
&lf_ctrl.u, lfs->blkaddr);
|
||
|
if (ret)
|
||
|
return ret;
|
||
|
|
||
|
lf_ctrl.s.grp = eng_grps_mask;
|
||
|
|
||
|
ret = otx2_cpt_write_af_reg(lfs->mbox, lfs->pdev,
|
||
|
CPT_AF_LFX_CTL(lf->slot),
|
||
|
lf_ctrl.u, lfs->blkaddr);
|
||
|
return ret;
|
||
|
}
|
||
|
|
||
|
static int cptlf_set_grp_and_pri(struct otx2_cptlfs_info *lfs,
|
||
|
int eng_grp_mask, int pri)
|
||
|
{
|
||
|
int slot, ret = 0;
|
||
|
|
||
|
for (slot = 0; slot < lfs->lfs_num; slot++) {
|
||
|
ret = cptlf_set_pri(&lfs->lf[slot], pri);
|
||
|
if (ret)
|
||
|
return ret;
|
||
|
|
||
|
ret = cptlf_set_eng_grps_mask(&lfs->lf[slot], eng_grp_mask);
|
||
|
if (ret)
|
||
|
return ret;
|
||
|
}
|
||
|
return ret;
|
||
|
}
|
||
|
|
||
|
static void cptlf_hw_init(struct otx2_cptlfs_info *lfs)
|
||
|
{
|
||
|
/* Disable instruction queues */
|
||
|
otx2_cptlf_disable_iqueues(lfs);
|
||
|
|
||
|
/* Set instruction queues base addresses */
|
||
|
otx2_cptlf_set_iqueues_base_addr(lfs);
|
||
|
|
||
|
/* Set instruction queues sizes */
|
||
|
otx2_cptlf_set_iqueues_size(lfs);
|
||
|
|
||
|
/* Set done interrupts time wait */
|
||
|
cptlf_set_done_time_wait(lfs, CPT_TIMER_HOLD);
|
||
|
|
||
|
/* Set done interrupts num wait */
|
||
|
cptlf_set_done_num_wait(lfs, CPT_COUNT_HOLD);
|
||
|
|
||
|
/* Enable instruction queues */
|
||
|
otx2_cptlf_enable_iqueues(lfs);
|
||
|
}
|
||
|
|
||
|
static void cptlf_hw_cleanup(struct otx2_cptlfs_info *lfs)
|
||
|
{
|
||
|
/* Disable instruction queues */
|
||
|
otx2_cptlf_disable_iqueues(lfs);
|
||
|
}
|
||
|
|
||
|
static void cptlf_set_misc_intrs(struct otx2_cptlfs_info *lfs, u8 enable)
|
||
|
{
|
||
|
union otx2_cptx_lf_misc_int_ena_w1s irq_misc = { .u = 0x0 };
|
||
|
u64 reg = enable ? OTX2_CPT_LF_MISC_INT_ENA_W1S :
|
||
|
OTX2_CPT_LF_MISC_INT_ENA_W1C;
|
||
|
int slot;
|
||
|
|
||
|
irq_misc.s.fault = 0x1;
|
||
|
irq_misc.s.hwerr = 0x1;
|
||
|
irq_misc.s.irde = 0x1;
|
||
|
irq_misc.s.nqerr = 0x1;
|
||
|
irq_misc.s.nwrp = 0x1;
|
||
|
|
||
|
for (slot = 0; slot < lfs->lfs_num; slot++)
|
||
|
otx2_cpt_write64(lfs->reg_base, BLKADDR_CPT0, slot, reg,
|
||
|
irq_misc.u);
|
||
|
}
|
||
|
|
||
|
static void cptlf_enable_intrs(struct otx2_cptlfs_info *lfs)
|
||
|
{
|
||
|
int slot;
|
||
|
|
||
|
/* Enable done interrupts */
|
||
|
for (slot = 0; slot < lfs->lfs_num; slot++)
|
||
|
otx2_cpt_write64(lfs->reg_base, BLKADDR_CPT0, slot,
|
||
|
OTX2_CPT_LF_DONE_INT_ENA_W1S, 0x1);
|
||
|
/* Enable Misc interrupts */
|
||
|
cptlf_set_misc_intrs(lfs, true);
|
||
|
}
|
||
|
|
||
|
static void cptlf_disable_intrs(struct otx2_cptlfs_info *lfs)
|
||
|
{
|
||
|
int slot;
|
||
|
|
||
|
for (slot = 0; slot < lfs->lfs_num; slot++)
|
||
|
otx2_cpt_write64(lfs->reg_base, BLKADDR_CPT0, slot,
|
||
|
OTX2_CPT_LF_DONE_INT_ENA_W1C, 0x1);
|
||
|
cptlf_set_misc_intrs(lfs, false);
|
||
|
}
|
||
|
|
||
|
static inline int cptlf_read_done_cnt(struct otx2_cptlf_info *lf)
|
||
|
{
|
||
|
union otx2_cptx_lf_done irq_cnt;
|
||
|
|
||
|
irq_cnt.u = otx2_cpt_read64(lf->lfs->reg_base, BLKADDR_CPT0, lf->slot,
|
||
|
OTX2_CPT_LF_DONE);
|
||
|
return irq_cnt.s.done;
|
||
|
}
|
||
|
|
||
|
static irqreturn_t cptlf_misc_intr_handler(int __always_unused irq, void *arg)
|
||
|
{
|
||
|
union otx2_cptx_lf_misc_int irq_misc, irq_misc_ack;
|
||
|
struct otx2_cptlf_info *lf = arg;
|
||
|
struct device *dev;
|
||
|
|
||
|
dev = &lf->lfs->pdev->dev;
|
||
|
irq_misc.u = otx2_cpt_read64(lf->lfs->reg_base, BLKADDR_CPT0, lf->slot,
|
||
|
OTX2_CPT_LF_MISC_INT);
|
||
|
irq_misc_ack.u = 0x0;
|
||
|
|
||
|
if (irq_misc.s.fault) {
|
||
|
dev_err(dev, "Memory error detected while executing CPT_INST_S, LF %d.\n",
|
||
|
lf->slot);
|
||
|
irq_misc_ack.s.fault = 0x1;
|
||
|
|
||
|
} else if (irq_misc.s.hwerr) {
|
||
|
dev_err(dev, "HW error from an engine executing CPT_INST_S, LF %d.",
|
||
|
lf->slot);
|
||
|
irq_misc_ack.s.hwerr = 0x1;
|
||
|
|
||
|
} else if (irq_misc.s.nwrp) {
|
||
|
dev_err(dev, "SMMU fault while writing CPT_RES_S to CPT_INST_S[RES_ADDR], LF %d.\n",
|
||
|
lf->slot);
|
||
|
irq_misc_ack.s.nwrp = 0x1;
|
||
|
|
||
|
} else if (irq_misc.s.irde) {
|
||
|
dev_err(dev, "Memory error when accessing instruction memory queue CPT_LF_Q_BASE[ADDR].\n");
|
||
|
irq_misc_ack.s.irde = 0x1;
|
||
|
|
||
|
} else if (irq_misc.s.nqerr) {
|
||
|
dev_err(dev, "Error enqueuing an instruction received at CPT_LF_NQ.\n");
|
||
|
irq_misc_ack.s.nqerr = 0x1;
|
||
|
|
||
|
} else {
|
||
|
dev_err(dev, "Unhandled interrupt in CPT LF %d\n", lf->slot);
|
||
|
return IRQ_NONE;
|
||
|
}
|
||
|
|
||
|
/* Acknowledge interrupts */
|
||
|
otx2_cpt_write64(lf->lfs->reg_base, BLKADDR_CPT0, lf->slot,
|
||
|
OTX2_CPT_LF_MISC_INT, irq_misc_ack.u);
|
||
|
|
||
|
return IRQ_HANDLED;
|
||
|
}
|
||
|
|
||
|
static irqreturn_t cptlf_done_intr_handler(int irq, void *arg)
|
||
|
{
|
||
|
union otx2_cptx_lf_done_wait done_wait;
|
||
|
struct otx2_cptlf_info *lf = arg;
|
||
|
int irq_cnt;
|
||
|
|
||
|
/* Read the number of completed requests */
|
||
|
irq_cnt = cptlf_read_done_cnt(lf);
|
||
|
if (irq_cnt) {
|
||
|
done_wait.u = otx2_cpt_read64(lf->lfs->reg_base, BLKADDR_CPT0,
|
||
|
lf->slot, OTX2_CPT_LF_DONE_WAIT);
|
||
|
/* Acknowledge the number of completed requests */
|
||
|
otx2_cpt_write64(lf->lfs->reg_base, BLKADDR_CPT0, lf->slot,
|
||
|
OTX2_CPT_LF_DONE_ACK, irq_cnt);
|
||
|
|
||
|
otx2_cpt_write64(lf->lfs->reg_base, BLKADDR_CPT0, lf->slot,
|
||
|
OTX2_CPT_LF_DONE_WAIT, done_wait.u);
|
||
|
if (unlikely(!lf->wqe)) {
|
||
|
dev_err(&lf->lfs->pdev->dev, "No work for LF %d\n",
|
||
|
lf->slot);
|
||
|
return IRQ_NONE;
|
||
|
}
|
||
|
|
||
|
/* Schedule processing of completed requests */
|
||
|
tasklet_hi_schedule(&lf->wqe->work);
|
||
|
}
|
||
|
return IRQ_HANDLED;
|
||
|
}
|
||
|
|
||
|
void otx2_cptlf_unregister_interrupts(struct otx2_cptlfs_info *lfs)
|
||
|
{
|
||
|
int i, offs, vector;
|
||
|
|
||
|
for (i = 0; i < lfs->lfs_num; i++) {
|
||
|
for (offs = 0; offs < OTX2_CPT_LF_MSIX_VECTORS; offs++) {
|
||
|
if (!lfs->lf[i].is_irq_reg[offs])
|
||
|
continue;
|
||
|
|
||
|
vector = pci_irq_vector(lfs->pdev,
|
||
|
lfs->lf[i].msix_offset + offs);
|
||
|
free_irq(vector, &lfs->lf[i]);
|
||
|
lfs->lf[i].is_irq_reg[offs] = false;
|
||
|
}
|
||
|
}
|
||
|
cptlf_disable_intrs(lfs);
|
||
|
}
|
||
|
EXPORT_SYMBOL_NS_GPL(otx2_cptlf_unregister_interrupts,
|
||
|
CRYPTO_DEV_OCTEONTX2_CPT);
|
||
|
|
||
|
static int cptlf_do_register_interrrupts(struct otx2_cptlfs_info *lfs,
|
||
|
int lf_num, int irq_offset,
|
||
|
irq_handler_t handler)
|
||
|
{
|
||
|
int ret, vector;
|
||
|
|
||
|
vector = pci_irq_vector(lfs->pdev, lfs->lf[lf_num].msix_offset +
|
||
|
irq_offset);
|
||
|
ret = request_irq(vector, handler, 0,
|
||
|
lfs->lf[lf_num].irq_name[irq_offset],
|
||
|
&lfs->lf[lf_num]);
|
||
|
if (ret)
|
||
|
return ret;
|
||
|
|
||
|
lfs->lf[lf_num].is_irq_reg[irq_offset] = true;
|
||
|
|
||
|
return ret;
|
||
|
}
|
||
|
|
||
|
int otx2_cptlf_register_interrupts(struct otx2_cptlfs_info *lfs)
|
||
|
{
|
||
|
int irq_offs, ret, i;
|
||
|
|
||
|
for (i = 0; i < lfs->lfs_num; i++) {
|
||
|
irq_offs = OTX2_CPT_LF_INT_VEC_E_MISC;
|
||
|
snprintf(lfs->lf[i].irq_name[irq_offs], 32, "CPTLF Misc%d", i);
|
||
|
ret = cptlf_do_register_interrrupts(lfs, i, irq_offs,
|
||
|
cptlf_misc_intr_handler);
|
||
|
if (ret)
|
||
|
goto free_irq;
|
||
|
|
||
|
irq_offs = OTX2_CPT_LF_INT_VEC_E_DONE;
|
||
|
snprintf(lfs->lf[i].irq_name[irq_offs], 32, "OTX2_CPTLF Done%d",
|
||
|
i);
|
||
|
ret = cptlf_do_register_interrrupts(lfs, i, irq_offs,
|
||
|
cptlf_done_intr_handler);
|
||
|
if (ret)
|
||
|
goto free_irq;
|
||
|
}
|
||
|
cptlf_enable_intrs(lfs);
|
||
|
return 0;
|
||
|
|
||
|
free_irq:
|
||
|
otx2_cptlf_unregister_interrupts(lfs);
|
||
|
return ret;
|
||
|
}
|
||
|
EXPORT_SYMBOL_NS_GPL(otx2_cptlf_register_interrupts, CRYPTO_DEV_OCTEONTX2_CPT);
|
||
|
|
||
|
void otx2_cptlf_free_irqs_affinity(struct otx2_cptlfs_info *lfs)
|
||
|
{
|
||
|
int slot, offs;
|
||
|
|
||
|
for (slot = 0; slot < lfs->lfs_num; slot++) {
|
||
|
for (offs = 0; offs < OTX2_CPT_LF_MSIX_VECTORS; offs++)
|
||
|
irq_set_affinity_hint(pci_irq_vector(lfs->pdev,
|
||
|
lfs->lf[slot].msix_offset +
|
||
|
offs), NULL);
|
||
|
free_cpumask_var(lfs->lf[slot].affinity_mask);
|
||
|
}
|
||
|
}
|
||
|
EXPORT_SYMBOL_NS_GPL(otx2_cptlf_free_irqs_affinity, CRYPTO_DEV_OCTEONTX2_CPT);
|
||
|
|
||
|
int otx2_cptlf_set_irqs_affinity(struct otx2_cptlfs_info *lfs)
|
||
|
{
|
||
|
struct otx2_cptlf_info *lf = lfs->lf;
|
||
|
int slot, offs, ret;
|
||
|
|
||
|
for (slot = 0; slot < lfs->lfs_num; slot++) {
|
||
|
if (!zalloc_cpumask_var(&lf[slot].affinity_mask, GFP_KERNEL)) {
|
||
|
dev_err(&lfs->pdev->dev,
|
||
|
"cpumask allocation failed for LF %d", slot);
|
||
|
ret = -ENOMEM;
|
||
|
goto free_affinity_mask;
|
||
|
}
|
||
|
|
||
|
cpumask_set_cpu(cpumask_local_spread(slot,
|
||
|
dev_to_node(&lfs->pdev->dev)),
|
||
|
lf[slot].affinity_mask);
|
||
|
|
||
|
for (offs = 0; offs < OTX2_CPT_LF_MSIX_VECTORS; offs++) {
|
||
|
ret = irq_set_affinity_hint(pci_irq_vector(lfs->pdev,
|
||
|
lf[slot].msix_offset + offs),
|
||
|
lf[slot].affinity_mask);
|
||
|
if (ret)
|
||
|
goto free_affinity_mask;
|
||
|
}
|
||
|
}
|
||
|
return 0;
|
||
|
|
||
|
free_affinity_mask:
|
||
|
otx2_cptlf_free_irqs_affinity(lfs);
|
||
|
return ret;
|
||
|
}
|
||
|
EXPORT_SYMBOL_NS_GPL(otx2_cptlf_set_irqs_affinity, CRYPTO_DEV_OCTEONTX2_CPT);
|
||
|
|
||
|
int otx2_cptlf_init(struct otx2_cptlfs_info *lfs, u8 eng_grp_mask, int pri,
|
||
|
int lfs_num)
|
||
|
{
|
||
|
int slot, ret;
|
||
|
|
||
|
if (!lfs->pdev || !lfs->reg_base)
|
||
|
return -EINVAL;
|
||
|
|
||
|
lfs->lfs_num = lfs_num;
|
||
|
for (slot = 0; slot < lfs->lfs_num; slot++) {
|
||
|
lfs->lf[slot].lfs = lfs;
|
||
|
lfs->lf[slot].slot = slot;
|
||
|
if (lfs->lmt_base)
|
||
|
lfs->lf[slot].lmtline = lfs->lmt_base +
|
||
|
(slot * LMTLINE_SIZE);
|
||
|
else
|
||
|
lfs->lf[slot].lmtline = lfs->reg_base +
|
||
|
OTX2_CPT_RVU_FUNC_ADDR_S(BLKADDR_LMT, slot,
|
||
|
OTX2_CPT_LMT_LF_LMTLINEX(0));
|
||
|
|
||
|
lfs->lf[slot].ioreg = lfs->reg_base +
|
||
|
OTX2_CPT_RVU_FUNC_ADDR_S(BLKADDR_CPT0, slot,
|
||
|
OTX2_CPT_LF_NQX(0));
|
||
|
}
|
||
|
/* Send request to attach LFs */
|
||
|
ret = otx2_cpt_attach_rscrs_msg(lfs);
|
||
|
if (ret)
|
||
|
goto clear_lfs_num;
|
||
|
|
||
|
ret = otx2_cpt_alloc_instruction_queues(lfs);
|
||
|
if (ret) {
|
||
|
dev_err(&lfs->pdev->dev,
|
||
|
"Allocating instruction queues failed\n");
|
||
|
goto detach_rsrcs;
|
||
|
}
|
||
|
cptlf_hw_init(lfs);
|
||
|
/*
|
||
|
* Allow each LF to execute requests destined to any of 8 engine
|
||
|
* groups and set queue priority of each LF to high
|
||
|
*/
|
||
|
ret = cptlf_set_grp_and_pri(lfs, eng_grp_mask, pri);
|
||
|
if (ret)
|
||
|
goto free_iq;
|
||
|
|
||
|
return 0;
|
||
|
|
||
|
free_iq:
|
||
|
otx2_cpt_free_instruction_queues(lfs);
|
||
|
cptlf_hw_cleanup(lfs);
|
||
|
detach_rsrcs:
|
||
|
otx2_cpt_detach_rsrcs_msg(lfs);
|
||
|
clear_lfs_num:
|
||
|
lfs->lfs_num = 0;
|
||
|
return ret;
|
||
|
}
|
||
|
EXPORT_SYMBOL_NS_GPL(otx2_cptlf_init, CRYPTO_DEV_OCTEONTX2_CPT);
|
||
|
|
||
|
void otx2_cptlf_shutdown(struct otx2_cptlfs_info *lfs)
|
||
|
{
|
||
|
lfs->lfs_num = 0;
|
||
|
/* Cleanup LFs hardware side */
|
||
|
cptlf_hw_cleanup(lfs);
|
||
|
/* Send request to detach LFs */
|
||
|
otx2_cpt_detach_rsrcs_msg(lfs);
|
||
|
}
|
||
|
EXPORT_SYMBOL_NS_GPL(otx2_cptlf_shutdown, CRYPTO_DEV_OCTEONTX2_CPT);
|
||
|
|
||
|
MODULE_AUTHOR("Marvell");
|
||
|
MODULE_DESCRIPTION("Marvell RVU CPT Common module");
|
||
|
MODULE_LICENSE("GPL");
|