pci_dw.c File Reference

#include <sys/cdefs.h>
#include <sys/param.h>
#include <sys/systm.h>
#include <sys/bus.h>
#include <sys/devmap.h>
#include <sys/proc.h>
#include <sys/kernel.h>
#include <sys/lock.h>
#include <sys/malloc.h>
#include <sys/module.h>
#include <sys/mutex.h>
#include <sys/rman.h>
#include <machine/bus.h>
#include <machine/intr.h>
#include <machine/resource.h>
#include <dev/ofw/ofw_bus.h>
#include <dev/ofw/ofw_bus_subr.h>
#include <dev/ofw/ofw_pci.h>
#include <dev/ofw/ofwpci.h>
#include <dev/pci/pcivar.h>
#include <dev/pci/pcireg.h>
#include <dev/pci/pcib_private.h>
#include <dev/pci/pci_dw.h>
#include "pcib_if.h"
#include "pci_dw_if.h"

Include dependency graph for pci_dw.c:

Go to the source code of this file.

Macros
#define	debugf(fmt, args...)
#define	DBI_WR1(sc, reg, val)   pci_dw_dbi_wr1((sc)->dev, reg, val)
#define	DBI_WR2(sc, reg, val)   pci_dw_dbi_wr2((sc)->dev, reg, val)
#define	DBI_WR4(sc, reg, val)   pci_dw_dbi_wr4((sc)->dev, reg, val)
#define	DBI_RD1(sc, reg)   pci_dw_dbi_rd1((sc)->dev, reg)
#define	DBI_RD2(sc, reg)   pci_dw_dbi_rd2((sc)->dev, reg)
#define	DBI_RD4(sc, reg)   pci_dw_dbi_rd4((sc)->dev, reg)
#define	IATU_UR_WR4(sc, reg, val)    bus_write_4((sc)->iatu_ur_res, (sc)->iatu_ur_offset + (reg), (val))
#define	IATU_UR_RD4(sc, reg)    bus_read_4((sc)->iatu_ur_res, (sc)->iatu_ur_offset + (reg))
#define	PCI_BUS_SHIFT   20
#define	PCI_SLOT_SHIFT   15
#define	PCI_FUNC_SHIFT   12
#define	PCI_BUS_MASK   0xFF
#define	PCI_SLOT_MASK   0x1F
#define	PCI_FUNC_MASK   0x07
#define	PCI_REG_MASK   0xFFF
#define	IATU_CFG_BUS(bus)   ((uint64_t)((bus) & 0xff) << 24)
#define	IATU_CFG_SLOT(slot)   ((uint64_t)((slot) & 0x1f) << 19)
#define	IATU_CFG_FUNC(func)   ((uint64_t)((func) & 0x07) << 16)

Functions
	__FBSDID ("$FreeBSD$")
static uint32_t	pci_dw_dbi_read (device_t dev, u_int reg, int width)
static void	pci_dw_dbi_write (device_t dev, u_int reg, uint32_t val, int width)
static void	pci_dw_dbi_protect (struct pci_dw_softc *sc, bool protect)
static bool	pci_dw_check_dev (struct pci_dw_softc *sc, u_int bus, u_int slot, u_int func, u_int reg)
static bool	pci_dw_detect_atu_unroll (struct pci_dw_softc *sc)
static int	pci_dw_detect_out_atu_regions_unroll (struct pci_dw_softc *sc)
static int	pci_dw_detect_out_atu_regions_legacy (struct pci_dw_softc *sc)
static int	pci_dw_detect_out_atu_regions (struct pci_dw_softc *sc)
static int	pci_dw_map_out_atu_unroll (struct pci_dw_softc *sc, int idx, int type, uint64_t pa, uint64_t pci_addr, uint32_t size)
static int	pci_dw_map_out_atu_legacy (struct pci_dw_softc *sc, int idx, int type, uint64_t pa, uint64_t pci_addr, uint32_t size)
static int	pci_dw_map_out_atu (struct pci_dw_softc *sc, int idx, int type, uint64_t pa, uint64_t pci_addr, uint32_t size)
static int	pci_dw_setup_hw (struct pci_dw_softc *sc)
static int	pci_dw_decode_ranges (struct pci_dw_softc *sc, struct ofw_pci_range *ranges, int nranges)
static uint32_t	pci_dw_read_config (device_t dev, u_int bus, u_int slot, u_int func, u_int reg, int bytes)
static void	pci_dw_write_config (device_t dev, u_int bus, u_int slot, u_int func, u_int reg, uint32_t val, int bytes)
static int	pci_dw_alloc_msi (device_t pci, device_t child, int count, int maxcount, int *irqs)
static int	pci_dw_release_msi (device_t pci, device_t child, int count, int *irqs)
static int	pci_dw_map_msi (device_t pci, device_t child, int irq, uint64_t *addr, uint32_t *data)
static int	pci_dw_alloc_msix (device_t pci, device_t child, int *irq)
static int	pci_dw_release_msix (device_t pci, device_t child, int irq)
static int	pci_dw_get_id (device_t pci, device_t child, enum pci_id_type type, uintptr_t *id)
static bus_dma_tag_t	pci_dw_get_dma_tag (device_t dev, device_t child)
int	pci_dw_init (device_t dev)
	DEFINE_CLASS_1 (pcib, pci_dw_driver, pci_dw_methods, sizeof(struct pci_dw_softc), ofw_pcib_driver)

Variables
static device_method_t	pci_dw_methods []

Macro Definition Documentation

DBI_RD1

#define DBI_RD1	(		sc,
			reg
	)		pci_dw_dbi_rd1((sc)->dev, reg)

Definition at line 71 of file pci_dw.c.

DBI_RD2

#define DBI_RD2	(		sc,
			reg
	)		pci_dw_dbi_rd2((sc)->dev, reg)

Definition at line 72 of file pci_dw.c.

DBI_RD4

#define DBI_RD4	(		sc,
			reg
	)		pci_dw_dbi_rd4((sc)->dev, reg)

Definition at line 73 of file pci_dw.c.

DBI_WR1

#define DBI_WR1	(		sc,
			reg,
			val
	)		pci_dw_dbi_wr1((sc)->dev, reg, val)

Definition at line 68 of file pci_dw.c.

DBI_WR2

#define DBI_WR2	(		sc,
			reg,
			val
	)		pci_dw_dbi_wr2((sc)->dev, reg, val)

Definition at line 69 of file pci_dw.c.

DBI_WR4

#define DBI_WR4	(		sc,
			reg,
			val
	)		pci_dw_dbi_wr4((sc)->dev, reg, val)

Definition at line 70 of file pci_dw.c.

debugf

#define debugf	(		fmt,
			args...
	)

Definition at line 65 of file pci_dw.c.

IATU_CFG_BUS

#define IATU_CFG_BUS

(

bus

)

((uint64_t)((bus) & 0xff) << 24)

Definition at line 88 of file pci_dw.c.

IATU_CFG_FUNC

#define IATU_CFG_FUNC

(

func

)

((uint64_t)((func) & 0x07) << 16)

Definition at line 90 of file pci_dw.c.

IATU_CFG_SLOT

#define IATU_CFG_SLOT

(

slot

)

((uint64_t)((slot) & 0x1f) << 19)

Definition at line 89 of file pci_dw.c.

IATU_UR_RD4

#define IATU_UR_RD4	(		sc,
			reg
	)		bus_read_4((sc)->iatu_ur_res, (sc)->iatu_ur_offset + (reg))

Definition at line 77 of file pci_dw.c.

IATU_UR_WR4

#define IATU_UR_WR4	(		sc,
			reg,
			val
	)		bus_write_4((sc)->iatu_ur_res, (sc)->iatu_ur_offset + (reg), (val))

Definition at line 75 of file pci_dw.c.

PCI_BUS_MASK

#define PCI_BUS_MASK   0xFF

Definition at line 83 of file pci_dw.c.

PCI_BUS_SHIFT

#define PCI_BUS_SHIFT   20

Definition at line 80 of file pci_dw.c.

PCI_FUNC_MASK

#define PCI_FUNC_MASK   0x07

Definition at line 85 of file pci_dw.c.

PCI_FUNC_SHIFT

#define PCI_FUNC_SHIFT   12

Definition at line 82 of file pci_dw.c.

PCI_REG_MASK

#define PCI_REG_MASK   0xFFF

Definition at line 86 of file pci_dw.c.

PCI_SLOT_MASK

#define PCI_SLOT_MASK   0x1F

Definition at line 84 of file pci_dw.c.

PCI_SLOT_SHIFT

#define PCI_SLOT_SHIFT   15

Definition at line 81 of file pci_dw.c.

Function Documentation

__FBSDID()

__FBSDID

(

"$FreeBSD$"

)

DEFINE_CLASS_1()

DEFINE_CLASS_1	(	pcib	,
		pci_dw_driver	,
		pci_dw_methods	,
		sizeof(struct pci_dw_softc)	,
		ofw_pcib_driver
	)

pci_dw_alloc_msi()

static int pci_dw_alloc_msi ( device_t  pci, device_t  child, int  count, int  maxcount, int *  irqs  )

static

Definition at line 599 of file pci_dw.c.

References child, count, irqs, maxcount, and pci.

pci_dw_alloc_msix()

static int pci_dw_alloc_msix ( device_t  pci, device_t  child, int *  irq  )

static

Definition at line 643 of file pci_dw.c.

References child, irq, and pci.

pci_dw_check_dev()

static bool pci_dw_check_dev ( struct pci_dw_softc *  sc, u_int  bus, u_int  slot, u_int  func, u_int  reg  )

static

Definition at line 151 of file pci_dw.c.

References bus, pci_dw_softc::bus_end, pci_dw_softc::bus_start, pci_dw_softc::dev, func, PCI_FUNCMAX, PCI_SLOTMAX, PCIE_REGMAX, reg, pci_dw_softc::root_bus, slot, and status.

Referenced by pci_dw_read_config(), and pci_dw_write_config().

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pci_dw_dbi_protect()

static void pci_dw_dbi_protect ( struct pci_dw_softc *  sc, bool  protect  )

static

Definition at line 138 of file pci_dw.c.

References DBI_RD4, DBI_RO_WR_EN, DBI_WR4, DW_MISC_CONTROL_1, and reg.

Referenced by pci_dw_setup_hw().

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pci_dw_dbi_read()

static uint32_t pci_dw_dbi_read ( device_t  dev, u_int  reg, int  width  )

static

Definition at line 93 of file pci_dw.c.

References pci_dw_softc::dbi_res, pci_dw_softc::dev, dev, reg, and width.

pci_dw_dbi_write()

static void pci_dw_dbi_write ( device_t  dev, u_int  reg, uint32_t  val, int  width  )

static

Definition at line 114 of file pci_dw.c.

References pci_dw_softc::dbi_res, pci_dw_softc::dev, dev, reg, val, and width.

pci_dw_decode_ranges()

static int pci_dw_decode_ranges ( struct pci_dw_softc *  sc, struct ofw_pci_range *  ranges, int  nranges  )

static

Definition at line 434 of file pci_dw.c.

References pci_dw_softc::dev, pci_dw_softc::io_range, pci_dw_softc::mem_ranges, and pci_dw_softc::num_mem_ranges.

Referenced by pci_dw_init().

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pci_dw_detect_atu_unroll()

static bool pci_dw_detect_atu_unroll ( struct pci_dw_softc *  sc )

static

Definition at line 176 of file pci_dw.c.

References DBI_RD4, and DW_IATU_VIEWPORT.

Referenced by pci_dw_init().

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pci_dw_detect_out_atu_regions()

static int pci_dw_detect_out_atu_regions ( struct pci_dw_softc *  sc )

static

Definition at line 238 of file pci_dw.c.

References pci_dw_softc::iatu_ur_res, pci_dw_detect_out_atu_regions_legacy(), and pci_dw_detect_out_atu_regions_unroll().

Referenced by pci_dw_init().

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pci_dw_detect_out_atu_regions_legacy()

static int pci_dw_detect_out_atu_regions_legacy ( struct pci_dw_softc *  sc )

static

Definition at line 203 of file pci_dw.c.

References DBI_RD4, DBI_WR4, pci_dw_softc::dev, DW_IATU_LWR_TARGET_ADDR, DW_IATU_VIEWPORT, IATU_REGION_INDEX, pci_dw_softc::num_out_regions, and reg.

Referenced by pci_dw_detect_out_atu_regions().

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pci_dw_detect_out_atu_regions_unroll()

static int pci_dw_detect_out_atu_regions_unroll ( struct pci_dw_softc *  sc )

static

Definition at line 182 of file pci_dw.c.

References DW_IATU_UR_REG, DW_IATU_UR_STEP, IATU_UR_RD4, pci_dw_softc::iatu_ur_size, IATU_UR_WR4, pci_dw_softc::num_out_regions, and reg.

Referenced by pci_dw_detect_out_atu_regions().

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pci_dw_get_dma_tag()

static bus_dma_tag_t pci_dw_get_dma_tag ( device_t  dev, device_t  child  )

static

Definition at line 696 of file pci_dw.c.

References dev, and pci_dw_softc::dmat.

pci_dw_get_id()

static int pci_dw_get_id ( device_t  pci, device_t  child, enum pci_id_type  type, uintptr_t *  id  )

static

Definition at line 669 of file pci_dw.c.

References child, pci, PCI_ID_MSI, pcib_get_id, rid, and type.

pci_dw_init()

int pci_dw_init

(

device_t

dev

)

Definition at line 705 of file pci_dw.c.

References pci_dw_softc::bus_end, pci_dw_softc::bus_start, pci_dw_softc::cfg_pa, pci_dw_softc::cfg_res, pci_dw_softc::cfg_size, pci_dw_softc::coherent, pci_dw_softc::dbi_res, pci_dw_softc::dev, dev, pci_dw_softc::dmat, DW_DEFAULT_IATU_UR_DBI_OFFSET, DW_DEFAULT_IATU_UR_DBI_SIZE, pci_dw_softc::iatu_ur_offset, pci_dw_softc::iatu_ur_res, pci_dw_softc::iatu_ur_size, pci_dw_softc::mtx, pci_dw_softc::node, pci_dw_softc::num_lanes, pci_dw_softc::num_out_regions, pci_dw_softc::ofw_pci, pci_dw_decode_ranges(), pci_dw_detect_atu_unroll(), pci_dw_detect_out_atu_regions(), pci_dw_setup_hw(), rid, pci_dw_softc::root_bus, and pci_dw_softc::sub_bus.

Referenced by pci_mv_attach().

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pci_dw_map_msi()

static int pci_dw_map_msi ( device_t  pci, device_t  child, int  irq, uint64_t *  addr, uint32_t *  data  )

static

Definition at line 628 of file pci_dw.c.

References addr, child, data, irq, and pci.

pci_dw_map_out_atu()

static int pci_dw_map_out_atu ( struct pci_dw_softc *  sc, int  idx, int  type, uint64_t  pa, uint64_t  pci_addr, uint32_t  size  )

static

Definition at line 318 of file pci_dw.c.

References pci_dw_softc::iatu_ur_res, pci_dw_map_out_atu_legacy(), pci_dw_map_out_atu_unroll(), and type.

Referenced by pci_dw_read_config(), pci_dw_setup_hw(), and pci_dw_write_config().

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pci_dw_map_out_atu_legacy()

static int pci_dw_map_out_atu_legacy ( struct pci_dw_softc *  sc, int  idx, int  type, uint64_t  pa, uint64_t  pci_addr, uint32_t  size  )

static

Definition at line 285 of file pci_dw.c.

References DBI_RD4, DBI_WR4, pci_dw_softc::dev, DW_IATU_CTRL1, DW_IATU_CTRL2, DW_IATU_LIMIT_ADDR, DW_IATU_LWR_BASE_ADDR, DW_IATU_LWR_TARGET_ADDR, DW_IATU_UPPER_BASE_ADDR, DW_IATU_UPPER_TARGET_ADDR, DW_IATU_VIEWPORT, IATU_CTRL1_TYPE, IATU_CTRL2_REGION_EN, IATU_REGION_INDEX, reg, and type.

Referenced by pci_dw_map_out_atu().

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pci_dw_map_out_atu_unroll()

static int pci_dw_map_out_atu_unroll ( struct pci_dw_softc *  sc, int  idx, int  type, uint64_t  pa, uint64_t  pci_addr, uint32_t  size  )

static

Definition at line 247 of file pci_dw.c.

References pci_dw_softc::dev, DW_IATU_UR_REG, IATU_CTRL1_TYPE, IATU_CTRL2_REGION_EN, IATU_UR_RD4, IATU_UR_WR4, reg, and type.

Referenced by pci_dw_map_out_atu().

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pci_dw_read_config()

static uint32_t pci_dw_read_config ( device_t  dev, u_int  bus, u_int  slot, u_int  func, u_int  reg, int  bytes  )

static

Definition at line 506 of file pci_dw.c.

References addr, bus, pci_dw_softc::cfg_pa, pci_dw_softc::cfg_res, pci_dw_softc::cfg_size, data, pci_dw_softc::dbi_res, dev, func, IATU_CFG_BUS, IATU_CFG_FUNC, IATU_CFG_SLOT, IATU_CTRL1_TYPE_CFG0, IATU_CTRL1_TYPE_CFG1, pci_dw_check_dev(), pci_dw_map_out_atu(), reg, pci_dw_softc::root_bus, slot, pci_dw_softc::sub_bus, and type.

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pci_dw_release_msi()

static int pci_dw_release_msi ( device_t  pci, device_t  child, int  count, int *  irqs  )

static

Definition at line 615 of file pci_dw.c.

References child, count, irqs, and pci.

pci_dw_release_msix()

static int pci_dw_release_msix ( device_t  pci, device_t  child, int  irq  )

static

Definition at line 656 of file pci_dw.c.

References child, irq, and pci.

pci_dw_setup_hw()

static int pci_dw_setup_hw ( struct pci_dw_softc *  sc )

static

Definition at line 330 of file pci_dw.c.

References pci_dw_softc::bus_end, DBI_RD4, DBI_WR1, DBI_WR2, DBI_WR4, pci_dw_softc::dev, DIRECT_SPEED_CHANGE, DW_GEN2_CTRL, DW_PORT_LINK_CTRL, GEN2_CTRL_NUM_OF_LANES, GEN2_CTRL_NUM_OF_LANES_1, GEN2_CTRL_NUM_OF_LANES_16, GEN2_CTRL_NUM_OF_LANES_2, GEN2_CTRL_NUM_OF_LANES_32, GEN2_CTRL_NUM_OF_LANES_4, GEN2_CTRL_NUM_OF_LANES_8, IATU_CTRL1_TYPE_IO, IATU_CTRL1_TYPE_MEM, pci_dw_softc::io_range, pci_dw_softc::mem_ranges, pci_dw_softc::num_lanes, pci_dw_softc::num_mem_ranges, pci_dw_softc::num_out_regions, pci_dw_dbi_protect(), pci_dw_map_out_atu(), PCIC_BRIDGE, PCIM_CMD_BUSMASTEREN, PCIM_CMD_MEMEN, PCIM_CMD_PORTEN, PCIM_CMD_SERRESPEN, PCIR_BAR, PCIR_CLASS, PCIR_COMMAND, PCIR_INTPIN, PCIR_PRIBUS_1, PCIR_SECBUS_1, PCIR_SUBBUS_1, PCIR_SUBCLASS, PCIS_BRIDGE_PCI, PORT_LINK_CAPABLE, PORT_LINK_CAPABLE_1, PORT_LINK_CAPABLE_16, PORT_LINK_CAPABLE_2, PORT_LINK_CAPABLE_32, PORT_LINK_CAPABLE_4, PORT_LINK_CAPABLE_8, reg, pci_dw_softc::root_bus, and pci_dw_softc::sub_bus.

Referenced by pci_dw_init().

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pci_dw_write_config()

static void pci_dw_write_config ( device_t  dev, u_int  bus, u_int  slot, u_int  func, u_int  reg, uint32_t  val, int  bytes  )

static

Definition at line 555 of file pci_dw.c.

References addr, bus, pci_dw_softc::cfg_pa, pci_dw_softc::cfg_res, pci_dw_softc::cfg_size, pci_dw_softc::dbi_res, dev, func, IATU_CFG_BUS, IATU_CFG_FUNC, IATU_CFG_SLOT, IATU_CTRL1_TYPE_CFG0, IATU_CTRL1_TYPE_CFG1, pci_dw_check_dev(), pci_dw_map_out_atu(), reg, pci_dw_softc::root_bus, slot, pci_dw_softc::sub_bus, type, and val.

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Variable Documentation

pci_dw_methods

device_method_t pci_dw_methods[]

static

Initial value:

= {
        
        DEVMETHOD(bus_get_dma_tag,      pci_dw_get_dma_tag),
 
        
        DEVMETHOD(pcib_read_config,     pci_dw_read_config),
        DEVMETHOD(pcib_write_config,    pci_dw_write_config),
        DEVMETHOD(pcib_alloc_msi,       pci_dw_alloc_msi),
        DEVMETHOD(pcib_release_msi,     pci_dw_release_msi),
        DEVMETHOD(pcib_alloc_msix,      pci_dw_alloc_msix),
        DEVMETHOD(pcib_release_msix,    pci_dw_release_msix),
        DEVMETHOD(pcib_map_msi,         pci_dw_map_msi),
        DEVMETHOD(pcib_get_id,          pci_dw_get_id),
 
        
        DEVMETHOD(ofw_bus_get_compat,   ofw_bus_gen_get_compat),
        DEVMETHOD(ofw_bus_get_model,    ofw_bus_gen_get_model),
        DEVMETHOD(ofw_bus_get_name,     ofw_bus_gen_get_name),
        DEVMETHOD(ofw_bus_get_node,     ofw_bus_gen_get_node),
        DEVMETHOD(ofw_bus_get_type,     ofw_bus_gen_get_type),
 
        
        DEVMETHOD(pci_dw_dbi_read,      pci_dw_dbi_read),
        DEVMETHOD(pci_dw_dbi_write,     pci_dw_dbi_write),
        DEVMETHOD_END
}

Definition at line 835 of file pci_dw.c.