arch/powerpc/include/asm/opal.h

Source file repositories/reference/linux-study-clean/arch/powerpc/include/asm/opal.h

File Facts

System
Linux kernel
Corpus path
arch/powerpc/include/asm/opal.h
Extension
.h
Size
17418 bytes
Lines
396
Domain
Architecture Layer
Bucket
arch/powerpc
Inferred role
Architecture Layer: implementation source
Status
source implementation candidate

Why This File Exists

CPU and platform-specific kernel glue: boot entry, traps, syscall entry, interrupts, page tables, context switch, and low-level barriers.

Dependency Surface

Detected Declarations

Annotated Snippet

#ifndef _ASM_POWERPC_OPAL_H
#define _ASM_POWERPC_OPAL_H

#include <asm/opal-api.h>

#ifndef __ASSEMBLER__

#include <linux/notifier.h>

/* We calculate number of sg entries based on PAGE_SIZE */
#define SG_ENTRIES_PER_NODE ((PAGE_SIZE - 16) / sizeof(struct opal_sg_entry))

/* Default time to sleep or delay between OPAL_BUSY/OPAL_BUSY_EVENT loops */
#define OPAL_BUSY_DELAY_MS	10

/* /sys/firmware/opal */
extern struct kobject *opal_kobj;

/* /ibm,opal */
extern struct device_node *opal_node;

/* API functions */
int64_t opal_invalid_call(void);
int64_t opal_npu_map_lpar(uint64_t phb_id, uint64_t bdf, uint64_t lparid,
			uint64_t lpcr);
int64_t opal_npu_spa_setup(uint64_t phb_id, uint32_t bdfn,
			uint64_t addr, uint64_t PE_mask);
int64_t opal_npu_spa_clear_cache(uint64_t phb_id, uint32_t bdfn,
				uint64_t PE_handle);
int64_t opal_npu_tl_set(uint64_t phb_id, uint32_t bdfn, long cap,
			uint64_t rate_phys, uint32_t size);

int64_t opal_console_write(int64_t term_number, __be64 *length,
			   const uint8_t *buffer);
int64_t opal_console_read(int64_t term_number, __be64 *length,
			  uint8_t *buffer);
int64_t opal_console_write_buffer_space(int64_t term_number,
					__be64 *length);
int64_t opal_console_flush(int64_t term_number);
int64_t opal_rtc_read(__be32 *year_month_day,
		      __be64 *hour_minute_second_millisecond);
int64_t opal_rtc_write(uint32_t year_month_day,
		       uint64_t hour_minute_second_millisecond);
int64_t opal_tpo_read(uint64_t token, __be32 *year_mon_day, __be32 *hour_min);
int64_t opal_tpo_write(uint64_t token, uint32_t year_mon_day,
		       uint32_t hour_min);
int64_t opal_cec_power_down(uint64_t request);
int64_t opal_cec_reboot(void);
int64_t opal_cec_reboot2(uint32_t reboot_type, const char *diag);
int64_t opal_read_nvram(uint64_t buffer, uint64_t size, uint64_t offset);
int64_t opal_write_nvram(uint64_t buffer, uint64_t size, uint64_t offset);
int64_t opal_handle_interrupt(uint64_t isn, __be64 *outstanding_event_mask);
int64_t opal_poll_events(__be64 *outstanding_event_mask);
int64_t opal_pci_set_hub_tce_memory(uint64_t hub_id, uint64_t tce_mem_addr,
				    uint64_t tce_mem_size);
int64_t opal_pci_set_phb_tce_memory(uint64_t phb_id, uint64_t tce_mem_addr,
				    uint64_t tce_mem_size);
int64_t opal_pci_config_read_byte(uint64_t phb_id, uint64_t bus_dev_func,
				  uint64_t offset, uint8_t *data);
int64_t opal_pci_config_read_half_word(uint64_t phb_id, uint64_t bus_dev_func,
				       uint64_t offset, __be16 *data);
int64_t opal_pci_config_read_word(uint64_t phb_id, uint64_t bus_dev_func,
				  uint64_t offset, __be32 *data);
int64_t opal_pci_config_write_byte(uint64_t phb_id, uint64_t bus_dev_func,
				   uint64_t offset, uint8_t data);
int64_t opal_pci_config_write_half_word(uint64_t phb_id, uint64_t bus_dev_func,
					uint64_t offset, uint16_t data);
int64_t opal_pci_config_write_word(uint64_t phb_id, uint64_t bus_dev_func,
				   uint64_t offset, uint32_t data);
int64_t opal_set_xive(uint32_t isn, uint16_t server, uint8_t priority);
int64_t opal_get_xive(uint32_t isn, __be16 *server, uint8_t *priority);
int64_t opal_register_exception_handler(uint64_t opal_exception,
					uint64_t handler_address,
					uint64_t glue_cache_line);
int64_t opal_pci_eeh_freeze_status(uint64_t phb_id, uint64_t pe_number,
				   uint8_t *freeze_state,
				   __be16 *pci_error_type,
				   __be64 *phb_status);
int64_t opal_pci_eeh_freeze_clear(uint64_t phb_id, uint64_t pe_number,
				  uint64_t eeh_action_token);
int64_t opal_pci_eeh_freeze_set(uint64_t phb_id, uint64_t pe_number,
				uint64_t eeh_action_token);
int64_t opal_pci_err_inject(uint64_t phb_id, uint32_t pe_no, uint32_t type,
			    uint32_t func, uint64_t addr, uint64_t mask);
int64_t opal_pci_shpc(uint64_t phb_id, uint64_t shpc_action, uint8_t *state);



int64_t opal_pci_phb_mmio_enable(uint64_t phb_id, uint16_t window_type,
				 uint16_t window_num, uint16_t enable);

Annotation

Implementation Notes