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authorNiclas Zeising <zeising@daemonic.se>2019-06-16 10:41:03 +0200
committerNiclas Zeising <zeising@daemonic.se>2019-07-10 18:55:15 +0200
commit976e661ee193941f9928353db365f14654a934db (patch)
tree1ebbcbbe3ea8b6ad80101a34f52fa2f676f6436c
parenta1b528c4ae00972640d7a24f049c3fe9055ffe3b (diff)
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.
-rw-r--r--src/common_init.c4
-rw-r--r--src/freebsd_pci.c46
-rw-r--r--src/pciaccess_private.h1
3 files changed, 42 insertions, 9 deletions
diff --git a/src/common_init.c b/src/common_init.c
index f7b59bd..18f717d 100644
--- a/src/common_init.c
+++ b/src/common_init.c
@@ -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
}
diff --git a/src/freebsd_pci.c b/src/freebsd_pci.c
index e501d0b..ab7a8df 100644
--- a/src/freebsd_pci.c
+++ b/src/freebsd_pci.c
@@ -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
+}
diff --git a/src/pciaccess_private.h b/src/pciaccess_private.h
index 2f05b29..a45b093 100644
--- a/src/pciaccess_private.h
+++ b/src/pciaccess_private.h
@@ -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 );