sw64: add boot and setup routines

/* SPDX-License-Identifier: GPL-2.0 */

#ifndef _ASM_SW64_PLATFORM_H

#define _ASM_SW64_PLATFORM_H

#include <linux/types.h>

#if defined(CONFIG_UNCORE_XUELANG)

#include <asm/uncore_io_xuelang.h>

#elif defined(CONFIG_UNCORE_JUNZHANG)

#include <asm/uncore_io_junzhang.h>

#endif

#ifdef CONFIG_EFI

#define BIOS_VERSION_GUID       EFI_GUID(0xc47a23c3, 0xcebb, 0x4cc9, 0xa5, 0xe2, 0xde, 0xd0, 0x8f, 0xe4, 0x20, 0xb5)

#define BIOS_SUPPORT_RESET_CLALLBACK(bios_version) ((bios_version) != NULL)

extern unsigned long bios_version;

#endif

extern struct boot_params *sunway_boot_params;

extern void sw64_halt(void);

extern void sw64_poweroff(void);

extern void sw64_restart(void);

extern void (*pm_restart)(void);

extern void (*pm_halt)(void);

extern int i2c_set_adapter(void);

extern void cpld_write(uint8_t slave_addr, uint8_t reg, uint8_t data);

extern void fix_jm585_reset(void);

#endif /* _ASM_SW64_PLATFORM_H */

/* SPDX-License-Identifier: GPL-2.0 */

#ifndef _ASM_SW64_SETUP_H

#define _ASM_SW64_SETUP_H

#include <uapi/asm/setup.h>

/*

 * We leave one page for the initial stack page, and one page for

 * the initial process structure. Also, the console eats 3 MB for

 * the initial bootloader (one of which we can reclaim later).

 */

#define BOOT_PCB		0x20000000

#define BOOT_ADDR		0x20000000

/* Remove when official MILO sources have ELF support: */

#define BOOT_SIZE		(16 * 1024)

#define KERNEL_START_PHYS	CONFIG_PHYSICAL_START

#define KERNEL_START		(__START_KERNEL_map + CONFIG_PHYSICAL_START)

/* INIT_STACK may be used for merging lwk to kernel*/

#define INIT_STACK		(KERNEL_START + 0x02000)

/*

 * This is setup by the secondary bootstrap loader.  Because

 * the zero page is zeroed out as soon as the vm system is

 * initialized, we need to copy things out into a more permanent

 * place.

 */

#define PARAM			(KERNEL_START + 0x0A000)

#define COMMAND_LINE		((char *)(KERNEL_START + 0x0B000))

#define INITRD_START		(*(unsigned long *)(PARAM + 0x100))

#define INITRD_SIZE		(*(unsigned long *)(PARAM + 0x108))

#define DTB_START		(*(unsigned long *)(PARAM + 0x118))

#define _TEXT_START		(KERNEL_START + 0x10000)

#define COMMAND_LINE_OFF	(0x10000UL - 0xB000UL)

#define INITRD_START_OFF	(0x10000UL - 0xA100UL)

#define INITRD_SIZE_OFF		(0x10000UL - 0xA108UL)

/* Motherboard Configuration Tables */

#define MB_CONFIG_START		0x908000

#define MB_MCLK			(MB_CONFIG_START + 0x1)

#define MB_EXTCLK		(MB_CONFIG_START + 0x11)

#ifndef __ASSEMBLY__

#include <asm/bootparam.h>

extern struct boot_params *sunway_boot_params;

#endif

#endif /* _ASM_SW64_SETUP_H */

/* SPDX-License-Identifier: GPL-2.0 */

#ifndef _ASM_SW64_SW64_INIT_H

#define _ASM_SW64_SW64_INIT_H

#include <linux/cpu.h>

#include <linux/pci.h>

#include <asm/sw64io.h>

struct sw64_early_init_ops {

	void (*setup_core_map)(struct cpumask *cpumask);

	unsigned long (*get_node_mem)(int nodeid);

	void (*get_smp_info)(void);

};

struct sw64_pci_init_ops {

	int (*map_irq)(const struct pci_dev *dev, u8 slot, u8 pin);

	unsigned long (*get_rc_enable)(unsigned long node);

	void (*hose_init)(struct pci_controller *hose);

	void (*set_rc_piu)(unsigned long node, unsigned long index);

	int (*check_pci_linkup)(unsigned long node, unsigned long index);

	void (*set_intx)(unsigned long node, unsigned long index,

			unsigned long int_conf);

};

struct sw64_chip_init_ops {

	struct sw64_early_init_ops	early_init;

	struct sw64_pci_init_ops	pci_init;

	void (*fixup)(void);

};

struct sw64_chip_ops {

	int (*get_cpu_num)(void);

	void (*device_interrupt)(unsigned long irq_info);

	void (*suspend)(bool wake);

	void (*fixup)(void);

};

extern void sw64_init_noop(void);

extern void setup_chip_ops(void);

extern struct sw64_chip_ops *sw64_chip;

extern struct sw64_chip_init_ops *sw64_chip_init;

#ifdef CONFIG_PM

extern struct syscore_ops io_syscore_ops;

#endif

DECLARE_PER_CPU(unsigned long, hard_node_id);

#endif /* _ASM_SW64_SW64_INIT_H */

/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */

#ifndef _UAPI_ASM_SW64_BOOTPARAM_H

#define _UAPI_ASM_SW64_BOOTPARAM_H

#ifndef __ASSEMBLY__

#include <linux/types.h>

struct boot_params {

	__u64 initrd_start;			/* logical address of initrd */

	__u64 initrd_size;			/* size of initrd */

	__u64 dtb_start;			/* logical address of dtb */

	__u64 efi_systab;			/* logical address of EFI system table */

	__u64 efi_memmap;			/* logical address of EFI memory map */

	__u64 efi_memmap_size;			/* size of EFI memory map */

	__u64 efi_memdesc_size;			/* size of an EFI memory map descriptor */

	__u64 efi_memdesc_version;		/* memory descriptor version */

	__u64 cmdline;				/* logical address of cmdline */

};

#endif

#endif /* _UAPI_ASM_SW64_BOOTPARAM_H */

// SPDX-License-Identifier: GPL-2.0

/*

 * SW64 cacheinfo support

 *

 * This program is free software; you can redistribute it and/or modify

 * it under the terms of the GNU General Public License version 2 as

 * published by the Free Software Foundation.

 *

 * This program is distributed "as is" WITHOUT ANY WARRANTY of any

 * kind, whether express or implied; without even the implied warranty

 * of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the

 * GNU General Public License for more details.

 *

 * You should have received a copy of the GNU General Public License

 * along with this program.  If not, see <http://www.gnu.org/licenses/>.

 */

#include <linux/cacheinfo.h>

#include <asm/topology.h>

/* Populates leaf and increments to next leaf */

#define populate_cache(cache, leaf, c_level, c_type, c_id)	\

do {								\

	leaf->id = c_id;					\

	leaf->attributes = CACHE_ID;				\

	leaf->type = c_type;					\

	leaf->level = c_level;					\

	leaf->coherency_line_size = c->cache.linesz;		\

	leaf->number_of_sets = c->cache.sets;			\

	leaf->ways_of_associativity = c->cache.ways;		\

	leaf->size = c->cache.size;				\

	leaf++;							\

} while (0)

int init_cache_level(unsigned int cpu)

{

	struct cpuinfo_sw64 *c = &cpu_data[cpu];

	struct cpu_cacheinfo *this_cpu_ci = get_cpu_cacheinfo(cpu);

	int levels = 0, leaves = 0;

	/*

	 * If Dcache is not set, we assume the cache structures

	 * are not properly initialized.

	 */

	if (c->dcache.size)

		levels += 1;

	else

		return -ENOENT;

	leaves += (c->icache.size) ? 2 : 1;

	if (c->scache.size) {

		levels++;

		leaves++;

	}

	if (c->tcache.size) {

		levels++;

		leaves++;

	}

	this_cpu_ci->num_levels = levels;

	this_cpu_ci->num_leaves = leaves;

	return 0;

}

int populate_cache_leaves(unsigned int cpu)

{

	struct cpuinfo_sw64 *c = &cpu_data[cpu];

	struct cpu_cacheinfo *this_cpu_ci = get_cpu_cacheinfo(cpu);

	struct cacheinfo *this_leaf = this_cpu_ci->info_list;

	struct cpu_topology *topo = &cpu_topology[cpu];

	if (c->icache.size) {

		cpumask_set_cpu(cpu, &this_leaf->shared_cpu_map);

		populate_cache(dcache, this_leaf, 1, CACHE_TYPE_DATA, cpu);

		cpumask_set_cpu(cpu, &this_leaf->shared_cpu_map);

		populate_cache(icache, this_leaf, 1, CACHE_TYPE_INST, cpu);

	} else {

		cpumask_set_cpu(cpu, &this_leaf->shared_cpu_map);

		populate_cache(dcache, this_leaf, 1, CACHE_TYPE_UNIFIED, cpu);

	}

	if (c->scache.size) {

		cpumask_set_cpu(cpu, &this_leaf->shared_cpu_map);

		populate_cache(scache, this_leaf, 2, CACHE_TYPE_UNIFIED, cpu);

	}

	if (c->tcache.size) {

		cpumask_copy(&this_leaf->shared_cpu_map, topology_llc_cpumask(cpu));

		populate_cache(tcache, this_leaf, 3, CACHE_TYPE_UNIFIED, topo->package_id);

	}

	this_cpu_ci->cpu_map_populated = true;

	return 0;

}