scom.h File Reference

#include <arch/byteorder.h>
#include <types.h>
#include <arch/io.h>
#include <cpu/power/spr.h>

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Macros
#define	XSCOM_ADDR_IND_FLAG   PPC_BIT(0)
#define	XSCOM_ADDR_IND_ADDR   PPC_BITMASK(11, 31)
#define	XSCOM_ADDR_IND_DATA   PPC_BITMASK(48, 63)

Enumerations
enum	chiplet_id_t {   PIB_CHIPLET_ID = 0x00 , PERV_CHIPLET_ID = 0x01 , N0_CHIPLET_ID = 0x02 , N1_CHIPLET_ID = 0x03 ,   N2_CHIPLET_ID = 0x04 , N3_CHIPLET_ID = 0x05 , XB_CHIPLET_ID = 0x06 , MC01_CHIPLET_ID = 0x07 ,   MC23_CHIPLET_ID = 0x08 , OB0_CHIPLET_ID = 0x09 , OB1_CHIPLET_ID = 0x0A , OB2_CHIPLET_ID = 0x0B ,   OB3_CHIPLET_ID = 0x0C , PCI0_CHIPLET_ID = 0x0D , PCI1_CHIPLET_ID = 0x0E , PCI2_CHIPLET_ID = 0x0F ,   EP00_CHIPLET_ID = 0x10 , EP01_CHIPLET_ID = 0x11 , EP02_CHIPLET_ID = 0x12 , EP03_CHIPLET_ID = 0x13 ,   EP04_CHIPLET_ID = 0x14 , EP05_CHIPLET_ID = 0x15 , EC00_CHIPLET_ID = 0x20 , EC01_CHIPLET_ID = 0x21 ,   EC02_CHIPLET_ID = 0x22 , EC03_CHIPLET_ID = 0x23 , EC04_CHIPLET_ID = 0x24 , EC05_CHIPLET_ID = 0x25 ,   EC06_CHIPLET_ID = 0x26 , EC07_CHIPLET_ID = 0x27 , EC08_CHIPLET_ID = 0x28 , EC09_CHIPLET_ID = 0x29 ,   EC10_CHIPLET_ID = 0x2A , EC11_CHIPLET_ID = 0x2B , EC12_CHIPLET_ID = 0x2C , EC13_CHIPLET_ID = 0x2D ,   EC14_CHIPLET_ID = 0x2E , EC15_CHIPLET_ID = 0x2F , EC16_CHIPLET_ID = 0x30 , EC17_CHIPLET_ID = 0x31 ,   EC18_CHIPLET_ID = 0x32 , EC19_CHIPLET_ID = 0x33 , EC20_CHIPLET_ID = 0x34 , EC21_CHIPLET_ID = 0x35 ,   EC22_CHIPLET_ID = 0x36 , EC23_CHIPLET_ID = 0x37 }

Functions
void	reset_scom_engine (void)
uint64_t	read_scom_direct (uint64_t reg_address)
void	write_scom_direct (uint64_t reg_address, uint64_t data)
uint64_t	read_scom_indirect (uint64_t reg_address)
void	write_scom_indirect (uint64_t reg_address, uint64_t data)
static void	write_scom (uint64_t addr, uint64_t data)
static uint64_t	read_scom (uint64_t addr)
static void	scom_and_or (uint64_t addr, uint64_t and, uint64_t or)
static void	scom_and (uint64_t addr, uint64_t and)
static void	scom_or (uint64_t addr, uint64_t or)
static void	write_scom_for_chiplet (chiplet_id_t chiplet, uint64_t addr, uint64_t data)
static uint64_t	read_scom_for_chiplet (chiplet_id_t chiplet, uint64_t addr)
static void	scom_and_or_for_chiplet (chiplet_id_t chiplet, uint64_t addr, uint64_t and, uint64_t or)
static void	scom_and_for_chiplet (chiplet_id_t chiplet, uint64_t addr, uint64_t and)
static void	scom_or_for_chiplet (chiplet_id_t chiplet, uint64_t addr, uint64_t or)

Macro Definition Documentation

XSCOM_ADDR_IND_ADDR

#define XSCOM_ADDR_IND_ADDR   PPC_BITMASK(11, 31)

Definition at line 31 of file scom.h.

XSCOM_ADDR_IND_DATA

#define XSCOM_ADDR_IND_DATA   PPC_BITMASK(48, 63)

Definition at line 32 of file scom.h.

XSCOM_ADDR_IND_FLAG

#define XSCOM_ADDR_IND_FLAG   PPC_BIT(0)

Definition at line 30 of file scom.h.

Enumeration Type Documentation

chiplet_id_t

enum chiplet_id_t

Enumerator
PIB_CHIPLET_ID	PIB chiplet.
PERV_CHIPLET_ID	TP chiplet.
N0_CHIPLET_ID	Nest0 (North) chiplet.
N1_CHIPLET_ID	Nest1 (East) chiplet.
N2_CHIPLET_ID	Nest2 (South) chiplet.
N3_CHIPLET_ID	Nest3 (West) chiplet.
XB_CHIPLET_ID	XBus chiplet.
MC01_CHIPLET_ID	MC01 (West) chiplet.
MC23_CHIPLET_ID	MC23 (East) chiplet.
OB0_CHIPLET_ID	OBus0 chiplet.
OB1_CHIPLET_ID	OBus1 chiplet (Cumulus only)
OB2_CHIPLET_ID	OBus2 chiplet (Cumulus only)
OB3_CHIPLET_ID	OBus3 chiplet.
PCI0_CHIPLET_ID	PCIe0 chiplet.
PCI1_CHIPLET_ID	PCIe1 chiplet.
PCI2_CHIPLET_ID	PCIe2 chiplet.
EP00_CHIPLET_ID	Quad0 chiplet (EX0/1)
EP01_CHIPLET_ID	Quad1 chiplet (EX2/3)
EP02_CHIPLET_ID	Quad2 chiplet (EX4/5)
EP03_CHIPLET_ID	Quad3 chiplet (EX6/7)
EP04_CHIPLET_ID	Quad4 chiplet (EX8/9)
EP05_CHIPLET_ID	Quad5 chiplet (EX10/11)
EC00_CHIPLET_ID	Core0 chiplet (Quad0, EX0, C0)
EC01_CHIPLET_ID	Core1 chiplet (Quad0, EX0, C1)
EC02_CHIPLET_ID	Core2 chiplet (Quad0, EX1, C0)
EC03_CHIPLET_ID	Core3 chiplet (Quad0, EX1, C1)
EC04_CHIPLET_ID	Core4 chiplet (Quad1, EX2, C0)
EC05_CHIPLET_ID	Core5 chiplet (Quad1, EX2, C1)
EC06_CHIPLET_ID	Core6 chiplet (Quad1, EX3, C0)
EC07_CHIPLET_ID	Core7 chiplet (Quad1, EX3, C1)
EC08_CHIPLET_ID	Core8 chiplet (Quad2, EX4, C0)
EC09_CHIPLET_ID	Core9 chiplet (Quad2, EX4, C1)
EC10_CHIPLET_ID	Core10 chiplet (Quad2, EX5, C0)
EC11_CHIPLET_ID	Core11 chiplet (Quad2, EX5, C1)
EC12_CHIPLET_ID	Core12 chiplet (Quad3, EX6, C0)
EC13_CHIPLET_ID	Core13 chiplet (Quad3, EX6, C1)
EC14_CHIPLET_ID	Core14 chiplet (Quad3, EX7, C0)
EC15_CHIPLET_ID	Core15 chiplet (Quad3, EX7, C1)
EC16_CHIPLET_ID	Core16 chiplet (Quad4, EX8, C0)
EC17_CHIPLET_ID	Core17 chiplet (Quad4, EX8, C1)
EC18_CHIPLET_ID	Core18 chiplet (Quad4, EX9, C0)
EC19_CHIPLET_ID	Core19 chiplet (Quad4, EX9, C1)
EC20_CHIPLET_ID	Core20 chiplet (Quad5, EX10, C0)
EC21_CHIPLET_ID	Core21 chiplet (Quad5, EX10, C1)
EC22_CHIPLET_ID	Core22 chiplet (Quad5, EX11, C0)
EC23_CHIPLET_ID	Core23 chiplet (Quad5, EX11, C1)

Definition at line 40 of file scom.h.

Function Documentation

read_scom()

static uint64_t read_scom ( uint64_t  addr )

inlinestatic

Definition at line 105 of file scom.h.

References addr, read_scom_direct(), read_scom_indirect(), and XSCOM_ADDR_IND_FLAG.

Referenced by read_scom_for_chiplet(), and scom_and_or().

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read_scom_direct()

uint64_t read_scom_direct

(

uint64_t

reg_address

)

Definition at line 18 of file scom.c.

References clear_hmer(), eieio(), MMIO_GROUP0_CHIP0_SCOM_BASE_ADDR, read_hmer(), reset_scom_engine(), SPR_HMER_XSCOM_OCCUPIED, SPR_HMER_XSCOM_STATUS, and val.

Referenced by read_scom(), read_scom_indirect(), and write_scom_indirect().

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read_scom_for_chiplet()

static uint64_t read_scom_for_chiplet ( chiplet_id_t  chiplet, uint64_t  addr  )

inlinestatic

Definition at line 136 of file scom.h.

References addr, PPC_BITMASK, and read_scom().

Referenced by scom_and_or_for_chiplet().

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read_scom_indirect()

uint64_t read_scom_indirect

(

uint64_t

reg_address

)

Definition at line 98 of file scom.c.

References addr, BIOS_EMERG, printk, read_scom_direct(), write_scom_direct(), XSCOM_ADDR_IND_ADDR, XSCOM_DATA_IND_COMPLETE, XSCOM_DATA_IND_DATA, XSCOM_DATA_IND_ERR, XSCOM_DATA_IND_READ, and XSCOM_IND_MAX_RETRIES.

Referenced by read_scom().

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reset_scom_engine()

void reset_scom_engine

(

void

)

Definition at line 122 of file scom.c.

References clear_hmer(), eieio(), write_scom_direct(), XSCOM_ERR_REG, XSCOM_LOG_REG, and XSCOM_RCVED_STAT_REG.

Referenced by read_scom_direct(), and write_scom_direct().

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scom_and()

static void scom_and ( uint64_t  addr, uint64_t  and  )

inlinestatic

Definition at line 119 of file scom.h.

References addr, and scom_and_or().

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scom_and_for_chiplet()

static void scom_and_for_chiplet ( chiplet_id_t  chiplet, uint64_t  addr, uint64_t  and  )

inlinestatic

Definition at line 150 of file scom.h.

References addr, and scom_and_or_for_chiplet().

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scom_and_or()

static void scom_and_or ( uint64_t  addr, uint64_t  and, uint64_t  or  )

inlinestatic

Definition at line 113 of file scom.h.

References addr, read_scom(), and write_scom().

Referenced by scom_and(), and scom_or().

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scom_and_or_for_chiplet()

static void scom_and_or_for_chiplet ( chiplet_id_t  chiplet, uint64_t  addr, uint64_t  and, uint64_t  or  )

inlinestatic

Definition at line 143 of file scom.h.

References addr, read_scom_for_chiplet(), and write_scom_for_chiplet().

Referenced by scom_and_for_chiplet(), and scom_or_for_chiplet().

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scom_or()

static void scom_or ( uint64_t  addr, uint64_t  or  )

inlinestatic

Definition at line 124 of file scom.h.

References addr, and scom_and_or().

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scom_or_for_chiplet()

static void scom_or_for_chiplet ( chiplet_id_t  chiplet, uint64_t  addr, uint64_t  or  )

inlinestatic

Definition at line 155 of file scom.h.

References addr, and scom_and_or_for_chiplet().

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write_scom()

static void write_scom ( uint64_t  addr, uint64_t  data  )

inlinestatic

Definition at line 97 of file scom.h.

References addr, write_scom_direct(), write_scom_indirect(), and XSCOM_ADDR_IND_FLAG.

Referenced by scom_and_or(), and write_scom_for_chiplet().

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write_scom_direct()

void write_scom_direct	(	uint64_t	reg_address,
		uint64_t	data
	)

Definition at line 54 of file scom.c.

References clear_hmer(), eieio(), MMIO_GROUP0_CHIP0_SCOM_BASE_ADDR, read_hmer(), reset_scom_engine(), SPR_HMER_XSCOM_OCCUPIED, and SPR_HMER_XSCOM_STATUS.

Referenced by read_scom_indirect(), reset_scom_engine(), write_scom(), and write_scom_indirect().

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write_scom_for_chiplet()

static void write_scom_for_chiplet ( chiplet_id_t  chiplet, uint64_t  addr, uint64_t  data  )

inlinestatic

Definition at line 129 of file scom.h.

References addr, PPC_BITMASK, and write_scom().

Referenced by scom_and_or_for_chiplet().

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write_scom_indirect()

void write_scom_indirect	(	uint64_t	reg_address,
		uint64_t	data
	)

Definition at line 76 of file scom.c.

References addr, BIOS_EMERG, printk, read_scom_direct(), value, write_scom_direct(), XSCOM_ADDR_IND_ADDR, XSCOM_ADDR_IND_DATA, XSCOM_DATA_IND_COMPLETE, XSCOM_DATA_IND_ERR, and XSCOM_IND_MAX_RETRIES.

Referenced by write_scom().

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