Commit 976e661e authored by Niclas Zeising's avatar Niclas Zeising
Browse files

freebsd_pci: Make this work on sparc64

Make the FreeBSD libpciaccess routines work on FreeBSD.  The FreeBSD
sparc64 architecture needs special treatment, similar to the
PCI_MAGIC_IO_RANGE code.  However, PCI_MAGIC_IO_RANGE has been gone for
some time.  Give this a chance to work on sparc64 anyway.

This code has been in the FreeBSD ports tree for some time.
parent a1b528c4
......@@ -77,7 +77,9 @@ pci_system_init( void )
void
pci_system_init_dev_mem(int fd)
{
#ifdef __OpenBSD__
#if defined(__FreeBSD__) || defined(__FreeBSD_kernel__) || defined(__DragonFly__)
pci_system_freebsd_init_dev_mem(fd);
#elif defined(__OpenBSD__)
pci_system_openbsd_init_dev_mem(fd);
#endif
}
......
......@@ -82,6 +82,10 @@
#define PCIM_BAR_MEM_SPACE 0
#define PCIM_BAR_IO_SPACE 1
#if defined(__sparc64__)
static int screenfd;
#endif
/**
* FreeBSD private pci_system structure that extends the base pci_system
* structure.
......@@ -113,12 +117,18 @@ pci_device_freebsd_map_range( struct pci_device *dev,
{
const int prot = ((map->flags & PCI_DEV_MAP_FLAG_WRITABLE) != 0)
? (PROT_READ | PROT_WRITE) : PROT_READ;
#if !defined(__sparc64__)
struct mem_range_desc mrd;
struct mem_range_op mro;
#endif
int fd, err = 0;
#if defined(__sparc64__)
fd = screenfd;
#else
fd = open("/dev/mem", O_RDWR | O_CLOEXEC);
#endif
if (fd == -1)
return errno;
......@@ -128,6 +138,7 @@ pci_device_freebsd_map_range( struct pci_device *dev,
err = errno;
}
#if !defined(__sparc64__)
mrd.mr_base = map->base;
mrd.mr_len = map->size;
strncpy(mrd.mr_owner, "pciaccess", sizeof(mrd.mr_owner));
......@@ -148,6 +159,7 @@ pci_device_freebsd_map_range( struct pci_device *dev,
}
close(fd);
#endif
return err;
}
......@@ -156,6 +168,7 @@ static int
pci_device_freebsd_unmap_range( struct pci_device *dev,
struct pci_device_mapping *map )
{
#if !defined(__sparc64__)
struct mem_range_desc mrd;
struct mem_range_op mro;
int fd;
......@@ -181,6 +194,7 @@ pci_device_freebsd_unmap_range( struct pci_device *dev,
fprintf(stderr, "Failed to open /dev/mem\n");
}
}
#endif
return pci_device_generic_unmap_range(dev, map);
}
......@@ -299,7 +313,11 @@ pci_device_freebsd_read_rom( struct pci_device * dev, void * buffer )
}
printf("Using rom_base = 0x%lx\n", (long)rom_base);
#if defined(__sparc64__)
memfd = screenfd;
#else
memfd = open( "/dev/mem", O_RDONLY | O_CLOEXEC );
#endif
if ( memfd == -1 )
return errno;
......@@ -312,7 +330,9 @@ pci_device_freebsd_read_rom( struct pci_device * dev, void * buffer )
memcpy( buffer, bios, dev->rom_size );
munmap( bios, dev->rom_size );
#if !defined(__sparc64__)
close( memfd );
#endif
if (pci_rom) {
pci_device_cfg_write_u32( dev, PCIR_BIOS, rom );
......@@ -570,9 +590,9 @@ pci_device_freebsd_open_legacy_io( struct pci_io_handle *ret,
struct pci_device *dev, pciaddr_t base,
pciaddr_t size )
{
#if defined(PCI_MAGIC_IO_RANGE)
#if defined(__sparc64__)
ret->memory = mmap( NULL, size, PROT_READ | PROT_WRITE, MAP_SHARED,
aperturefd, PCI_MAGIC_IO_RANGE + base );
screenfd, base );
if ( ret->memory == MAP_FAILED )
return NULL;
#else
......@@ -601,14 +621,16 @@ static void
pci_device_freebsd_close_io( struct pci_device *dev,
struct pci_io_handle *handle )
{
#if !defined(__sparc64__)
if ( handle->fd > -1 )
close( handle->fd );
#endif
}
static uint32_t
pci_device_freebsd_read32( struct pci_io_handle *handle, uint32_t reg )
{
#if defined(PCI_MAGIC_IO_RANGE)
#if defined(__sparc64__)
return *(uint32_t *)((uintptr_t)handle->memory + reg);
#elif defined(__i386__) || defined(__amd64__)
return inl( handle->base + reg );
......@@ -623,7 +645,7 @@ pci_device_freebsd_read32( struct pci_io_handle *handle, uint32_t reg )
static uint16_t
pci_device_freebsd_read16( struct pci_io_handle *handle, uint32_t reg )
{
#if defined(PCI_MAGIC_IO_RANGE)
#if defined(__sparc64__)
return *(uint16_t *)((uintptr_t)handle->memory + reg);
#elif defined(__i386__) || defined(__amd64__)
return inw( handle->base + reg );
......@@ -638,7 +660,7 @@ pci_device_freebsd_read16( struct pci_io_handle *handle, uint32_t reg )
static uint8_t
pci_device_freebsd_read8( struct pci_io_handle *handle, uint32_t reg )
{
#if defined(PCI_MAGIC_IO_RANGE)
#if defined(__sparc64__)
return *(uint8_t *)((uintptr_t)handle->memory + reg);
#elif defined(__i386__) || defined(__amd64__)
return inb( handle->base + reg );
......@@ -654,7 +676,7 @@ static void
pci_device_freebsd_write32( struct pci_io_handle *handle, uint32_t reg,
uint32_t data )
{
#if defined(PCI_MAGIC_IO_RANGE)
#if defined(__sparc64__)
*(uint32_t *)((uintptr_t)handle->memory + reg) = data;
#elif defined(__i386__) || defined(__amd64__)
outl( handle->base + reg, data );
......@@ -669,7 +691,7 @@ static void
pci_device_freebsd_write16( struct pci_io_handle *handle, uint32_t reg,
uint16_t data )
{
#if defined(PCI_MAGIC_IO_RANGE)
#if defined(__sparc64__)
*(uint16_t *)((uintptr_t)handle->memory + reg) = data;
#elif defined(__i386__) || defined(__amd64__)
outw( handle->base + reg, data );
......@@ -684,7 +706,7 @@ static void
pci_device_freebsd_write8( struct pci_io_handle *handle, uint32_t reg,
uint8_t data )
{
#if defined(PCI_MAGIC_IO_RANGE)
#if defined(__sparc64__)
*(uint8_t *)((uintptr_t)handle->memory + reg) = data;
#elif defined(__i386__) || defined(__amd64__)
outb( handle->base + reg, data );
......@@ -814,3 +836,11 @@ pci_system_freebsd_create( void )
return 0;
}
void
pci_system_freebsd_init_dev_mem(int fd)
{
#if defined(__sparc64__)
screenfd = fd;
#endif
}
......@@ -185,6 +185,7 @@ extern struct pci_system * pci_sys;
extern int pci_system_linux_sysfs_create( void );
extern int pci_system_freebsd_create( void );
extern void pci_system_freebsd_init_dev_mem( int );
extern int pci_system_netbsd_create( void );
extern int pci_system_openbsd_create( void );
extern void pci_system_openbsd_init_dev_mem( int );
......
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