// SPDX-License-Identifier: BSD-3-Clause-Clear
/*
* Copyright (c) 2019-2020 The Linux Foundation. All rights reserved.
*/
#include <linux/module.h>
#include <linux/msi.h>
#include <linux/pci.h>
#include "pci.h"
#include "core.h"
#include "hif.h"
#include "mhi.h"
#include "debug.h"
#define ATH11K_PCI_BAR_NUM 0
#define ATH11K_PCI_DMA_MASK 32
#define ATH11K_PCI_IRQ_CE0_OFFSET 3
#define WINDOW_ENABLE_BIT 0x40000000
#define WINDOW_REG_ADDRESS 0x310c
#define WINDOW_VALUE_MASK GENMASK(24, 19)
#define WINDOW_START 0x80000
#define WINDOW_RANGE_MASK GENMASK(18, 0)
#define TCSR_SOC_HW_VERSION 0x0224
#define TCSR_SOC_HW_VERSION_MAJOR_MASK GENMASK(16, 8)
#define TCSR_SOC_HW_VERSION_MINOR_MASK GENMASK(7, 0)
/* BAR0 + 4k is always accessible, and no
* need to force wakeup.
* 4K - 32 = 0xFE0
*/
#define ACCESS_ALWAYS_OFF 0xFE0
#define QCA6390_DEVICE_ID 0x1101
static const struct pci_device_id ath11k_pci_id_table[] = {
{ PCI_VDEVICE(QCOM, QCA6390_DEVICE_ID) },
{0}
};
MODULE_DEVICE_TABLE(pci, ath11k_pci_id_table);
static const struct ath11k_bus_params ath11k_pci_bus_params = {
.mhi_support = true,
.m3_fw_support = true,
.fixed_bdf_addr = false,
.fixed_mem_region = false,
};
static const struct ath11k_msi_config msi_config = {
.total_vectors = 32,
.total_users = 4,
.users = (struct ath11k_msi_user[]) {
{ .name = "MHI", .num_vectors = 3, .base_vector = 0 },
{ .name = "CE", .num_vectors = 10, .base_vector = 3 },
{ .name = "WAKE", .num_vectors = 1, .base_vector = 13 },
{ .name = "DP", .num_vectors = 18, .base_vector = 14 },
},
};
static const char *irq_name[ATH11K_IRQ_NUM_MAX] = {
"bhi",
"mhi-er0",
"mhi-er1",
"ce0",
"ce1",
"ce2",
"ce3",
"ce4",
"ce5",
"ce6",
"ce7",
"ce8",
"ce9",
"ce10",
"ce11",
"host2wbm-desc-feed",
"host2reo-re-injection",
"host2reo-command",
"host2rxdma-monitor-ring3",
"host2rxdma-monitor-ring2",
"host2rxdma-monitor-ring1",
"reo2ost-exception",
"wbm2host-rx-release",
"reo2host-status",
"reo2host-destination-ring4",
"reo2host-destination-ring3",
"reo2host-destination-ring2",
"reo2host-destination-ring1",
"rxdma2host-monitor-destination-mac3",
"rxdma2host-monitor-destination-mac2",
"rxdma2host-monitor-destination-mac1",
"ppdu-end-interrupts-mac3",
"ppdu-end-interrupts-mac2",
"ppdu-end-interrupts-mac1",
"rxdma2host-monitor-status-ring-mac3",
"rxdma2host-monitor-status-ring-mac2",
"rxdma2host-monitor-status-ring-mac1",
"host2rxdma-host-buf-ring-mac3",
"host2rxdma-host-buf-ring-mac2",
"host2rxdma-host-buf-ring-mac1",
"rxdma2host-destination-ring-mac3",
"rxdma2host-destination-ring-mac2",
"rxdma2host-destination-ring-mac1",
"host2tcl-input-ring4",
"host2tcl-input-ring3",
"host2tcl-input-ring2",
"host2tcl-input-ring1",
"wbm2host-tx-completions-ring3",
"wbm2host-tx-completions-ring2",
"wbm2host-tx-completions-ring1",
"tcl2host-status-ring",
};
static inline void ath11k_pci_select_window(struct ath11k_pci *ab_pci, u32 offset)
{
struct ath11k_base *ab = ab_pci->ab;
u32 window = FIELD_GET(WINDOW_VALUE_MASK, offset);
lockdep_assert_held(&ab_pci->window_lock);
if (window != ab_pci->register_window) {
iowrite32(WINDOW_ENABLE_BIT | window,
ab->mem + WINDOW_REG_ADDRESS);
ab_pci->register_window = window;
}
}
void ath11k_pci_write32(struct ath11k_base *ab, u32 offset, u32 value)
{
struct ath11k_pci *ab_pci = ath11k_pci_priv(ab);
/* for offset beyond BAR + 4K - 32, may
* need to wakeup MHI to access.
*/
if (test_bit(ATH11K_PCI_FLAG_INIT_DONE, &ab_pci->flags) &&
offset >= ACCESS_ALWAYS_OFF)
mhi_device_get_sync(ab_pci->mhi_ctrl->mhi_dev);
if (offset < WINDOW_START) {
iowrite32(value, ab->mem + offset);
} else {
spin_lock_bh(&ab_pci->window_lock);
ath11k_pci_select_window(ab_pci,