/* SPDX-License-Identifier: GPL-2.0-only WITH Linux-syscall-note */
/* Copyright (c) 2015-2022 Graphcore Ltd. */
/*
 * Ipu device driver.
 *
 * Description: PCI device handling.
 */
#ifndef _pci_h_
#define _pci_h_

#include "ipu_driver.h"

int ipu_pci_init(void);
void ipu_pci_exit(void);

void start_tile_clk_speed_thread(struct device *dev);
void stop_tile_clk_speed_thread(struct device *dev);

void restore_board_info(struct ipu_device *ipu_dev);
u32 read_hsp_marks(struct ipu_device *ipu_dev);

extern unsigned long memmap_size[];
extern unsigned long memmap_start[];

/* minimum allocation 16K bytes allows upto 256G contiguous memory */
#define GENALLOC_ORDER_MINIMUM     (14)
#define GENALLOC_SIZE_MINIMUM      BIT(GENALLOC_ORDER_MINIMUM)
#define MAX_CMEM_NODES             (16)
// Max C600 IPUS supported on a single PCIE host
#define MAX_IPUS_PCIE_C600         (16)

int contiguous_mem_alloc(u64 size, u64 *virt, u64 *phys, int node);
int contiguous_mem_free(u64 size, u64 virt, int node);
int get_cmem_node(struct ipu_device *ipu_dev);

int ipu_icu_process_event(struct ipu_device *ipu_dev,
			  struct mailbox_msg *event);

void send_signal(struct ipu_device *dev, int sig_num,
		 struct pid *user_pid, int user_device_id);

#define ARCH_MAP(offset) \
	(ipu_dev->arch_map->offset)

extern struct ipu_hexopt_constant ipu_hexopt_constants[];

#endif