system/freebsd-src
system/freebsd-src
1
0
Fork 0
mirror of https://github.com/freebsd/freebsd-src synced 2024-07-21 18:27:22 +00:00
Code Issues Actions 2 Packages Projects Releases Wiki Activity
freebsd-src/sys/dev/drm2/drm_os_freebsd.h
Doug Moore c8b0c33b03 log2: move log2 functions from linuxkpi to libkern 
Linux has a header file that defines an ilog2 function and some simple
functions/macros that use it: roundup_pow_of_two, is_power_of_2,
rounddown_pow_of_two, and order_base_2.  This change moves three of
those simple functions (all but is_power_of_2) from linuxkpi to
libkern.  It also deletes a few implementations of these functions
that have previously been copied into code for various device drivers,
so that they can use the libkern version.  The is_power_of_2 macro was
not moved because powerof2 in param.h provides almost the same service
already (except that they disagree about whether 0 is a power of two).

Since the linux definitions of these functions were copied into
FreeBSD 11 years ago, linux has improved them, and this change
provides those improvements.  In particular, a giant table of log
values for evaluating ilog2 for constant values is no longer
necessary.

Reviewed by:	alc, markj (previous version)
Differential Revision:	https://reviews.freebsd.org/D45536
2024-06-24 02:00:31 -05:00

698 lines
18 KiB
C
Raw Blame History

/**
* \file drm_os_freebsd.h
* OS abstraction macros.
*/
#include <sys/cdefs.h>
#ifndef _DRM_OS_FREEBSD_H_
#define _DRM_OS_FREEBSD_H_
#include <sys/fbio.h>
#include <sys/smp.h>
#if _BYTE_ORDER == _BIG_ENDIAN
#define __BIG_ENDIAN 4321
#else
#define __LITTLE_ENDIAN 1234
#endif
#ifdef __LP64__
#define BITS_PER_LONG 64
#else
#define BITS_PER_LONG 32
#endif
#ifndef __user
#define __user
#endif
#ifndef __iomem
#define __iomem
#endif
#ifndef __always_unused
#define __always_unused
#endif
#ifndef __must_check
#define __must_check
#endif
#ifndef __force
#define __force
#endif
#ifndef uninitialized_var
#define uninitialized_var(x) x
#endif
#define cpu_to_le16(x) htole16(x)
#define le16_to_cpu(x) le16toh(x)
#define cpu_to_le32(x) htole32(x)
#define le32_to_cpu(x) le32toh(x)
#define cpu_to_be16(x) htobe16(x)
#define be16_to_cpu(x) be16toh(x)
#define cpu_to_be32(x) htobe32(x)
#define be32_to_cpu(x) be32toh(x)
#define be32_to_cpup(x) be32toh(*x)
typedef vm_paddr_t dma_addr_t;
typedef vm_paddr_t resource_size_t;
#define wait_queue_head_t atomic_t
typedef uint64_t u64;
typedef uint32_t u32;
typedef uint16_t u16;
typedef uint8_t u8;
typedef int64_t s64;
typedef int32_t s32;
typedef int16_t s16;
typedef int8_t s8;
typedef uint16_t __le16;
typedef uint32_t __le32;
typedef uint64_t __le64;
typedef uint16_t __be16;
typedef uint32_t __be32;
typedef uint64_t __be64;
#define DRM_IRQ_ARGS void *arg
typedef void irqreturn_t;
#define IRQ_HANDLED /* nothing */
#define IRQ_NONE /* nothing */
#define __init
#define __exit
#define BUILD_BUG_ON(x) CTASSERT(!(x))
#define BUILD_BUG_ON_NOT_POWER_OF_2(x)
#ifndef WARN
#define WARN(condition, format, ...) ({ \
int __ret_warn_on = !!(condition); \
if (unlikely(__ret_warn_on)) \
DRM_ERROR(format, ##__VA_ARGS__); \
unlikely(__ret_warn_on); \
})
#endif
#define WARN_ONCE(condition, format, ...) \
WARN(condition, format, ##__VA_ARGS__)
#define WARN_ON(cond) WARN(cond, "WARN ON: " #cond)
#define WARN_ON_SMP(cond) WARN_ON(cond)
#define BUG() panic("BUG")
#define BUG_ON(cond) KASSERT(!(cond), ("BUG ON: " #cond " -> 0x%jx", (uintmax_t)(cond)))
#define unlikely(x) __builtin_expect(!!(x), 0)
#define likely(x) __builtin_expect(!!(x), 1)
#define container_of(ptr, type, member) ({ \
__typeof( ((type *)0)->member ) *__mptr = (ptr); \
(type *)( (char *)__mptr - offsetof(type,member) );})
#define KHZ2PICOS(a) (1000000000UL/(a))
#define ARRAY_SIZE(x) (sizeof(x)/sizeof(x[0]))
#define HZ hz
#define DRM_HZ hz
#define DRM_CURRENTPID curthread->td_proc->p_pid
#define DRM_SUSER(p) (priv_check(p, PRIV_DRIVER) == 0)
#define udelay(usecs) DELAY(usecs)
#define mdelay(msecs) do { int loops = (msecs); \
while (loops--) DELAY(1000); \
} while (0)
#define DRM_UDELAY(udelay) DELAY(udelay)
#define drm_msleep(x, msg) pause((msg), ((int64_t)(x)) * hz / 1000)
#define DRM_MSLEEP(msecs) drm_msleep((msecs), "drm_msleep")
#define get_seconds() time_second
#define ioread8(addr) *(volatile uint8_t *)((char *)addr)
#define ioread16(addr) *(volatile uint16_t *)((char *)addr)
#define ioread32(addr) *(volatile uint32_t *)((char *)addr)
#define iowrite8(data, addr) *(volatile uint8_t *)((char *)addr) = data;
#define iowrite16(data, addr) *(volatile uint16_t *)((char *)addr) = data;
#define iowrite32(data, addr) *(volatile uint32_t *)((char *)addr) = data;
#define DRM_READ8(map, offset) \
*(volatile u_int8_t *)(((vm_offset_t)(map)->handle) + \
(vm_offset_t)(offset))
#define DRM_READ16(map, offset) \
le16toh(*(volatile u_int16_t *)(((vm_offset_t)(map)->handle) + \
(vm_offset_t)(offset)))
#define DRM_READ32(map, offset) \
le32toh(*(volatile u_int32_t *)(((vm_offset_t)(map)->handle) + \
(vm_offset_t)(offset)))
#define DRM_READ64(map, offset) \
le64toh(*(volatile u_int64_t *)(((vm_offset_t)(map)->handle) + \
(vm_offset_t)(offset)))
#define DRM_WRITE8(map, offset, val) \
*(volatile u_int8_t *)(((vm_offset_t)(map)->handle) + \
(vm_offset_t)(offset)) = val
#define DRM_WRITE16(map, offset, val) \
*(volatile u_int16_t *)(((vm_offset_t)(map)->handle) + \
(vm_offset_t)(offset)) = htole16(val)
#define DRM_WRITE32(map, offset, val) \
*(volatile u_int32_t *)(((vm_offset_t)(map)->handle) + \
(vm_offset_t)(offset)) = htole32(val)
#define DRM_WRITE64(map, offset, val) \
*(volatile u_int64_t *)(((vm_offset_t)(map)->handle) + \
(vm_offset_t)(offset)) = htole64(val)
#if !defined(__arm__)
#if defined(__i386__) || defined(__amd64__) || defined(__powerpc__) || defined(__aarch64__)
#define DRM_MSG "This code is deprecated. Install the graphics/drm-kmod pkg\n"
#else
#define DRM_MSG "This code is deprecated."
#endif
#define DRM_OBSOLETE(dev) \
do { \
device_printf(dev, "=======================================================\n"); \
device_printf(dev, DRM_MSG); \
device_printf(dev, "=======================================================\n"); \
gone_in_dev(dev, 13, "drm2 drivers"); \
} while (0)
#endif /* __arm__ */
/* DRM_READMEMORYBARRIER() prevents reordering of reads.
* DRM_WRITEMEMORYBARRIER() prevents reordering of writes.
* DRM_MEMORYBARRIER() prevents reordering of reads and writes.
*/
#define DRM_READMEMORYBARRIER() rmb()
#define DRM_WRITEMEMORYBARRIER() wmb()
#define DRM_MEMORYBARRIER() mb()
#define smp_rmb() rmb()
#define smp_wmb() wmb()
#define smp_mb__before_atomic_inc() mb()
#define smp_mb__after_atomic_inc() mb()
#define barrier() __compiler_membar()
#define do_div(a, b) ((a) /= (b))
#define div64_u64(a, b) ((a) / (b))
#define lower_32_bits(n) ((u32)(n))
#define upper_32_bits(n) ((u32)(((n) >> 16) >> 16))
#define __set_bit(n, s) set_bit((n), (s))
#define __clear_bit(n, s) clear_bit((n), (s))
#define min_t(type, x, y) ({ \
type __min1 = (x); \
type __min2 = (y); \
__min1 < __min2 ? __min1 : __min2; })
#define max_t(type, x, y) ({ \
type __max1 = (x); \
type __max2 = (y); \
__max1 > __max2 ? __max1 : __max2; })
#define memset_io(a, b, c) memset((a), (b), (c))
#define memcpy_fromio(a, b, c) memcpy((a), (b), (c))
#define memcpy_toio(a, b, c) memcpy((a), (b), (c))
#define VERIFY_READ VM_PROT_READ
#define VERIFY_WRITE VM_PROT_WRITE
#define access_ok(prot, p, l) useracc((p), (l), (prot))
/* XXXKIB what is the right code for the FreeBSD ? */
/* kib@ used ENXIO here -- dumbbell@ */
#define EREMOTEIO EIO
#define ERESTARTSYS 512 /* Same value as Linux. */
#define KTR_DRM KTR_DEV
#define KTR_DRM_REG KTR_SPARE3
#define DRM_AGP_KERN struct agp_info
#define DRM_AGP_MEM void
#define PCI_VENDOR_ID_APPLE 0x106b
#define PCI_VENDOR_ID_ASUSTEK 0x1043
#define PCI_VENDOR_ID_ATI 0x1002
#define PCI_VENDOR_ID_DELL 0x1028
#define PCI_VENDOR_ID_HP 0x103c
#define PCI_VENDOR_ID_IBM 0x1014
#define PCI_VENDOR_ID_INTEL 0x8086
#define PCI_VENDOR_ID_SERVERWORKS 0x1166
#define PCI_VENDOR_ID_SONY 0x104d
#define PCI_VENDOR_ID_VIA 0x1106
#define DIV_ROUND_UP(n,d) (((n) + (d) - 1) / (d))
#define DIV_ROUND_CLOSEST(n,d) (((n) + (d) / 2) / (d))
#define div_u64(n, d) ((n) / (d))
#define hweight32(i) bitcount32(i)
/**
* ror32 - rotate a 32-bit value right
* @word: value to rotate
* @shift: bits to roll
*
* Source: include/linux/bitops.h
*/
static inline uint32_t
ror32(uint32_t word, unsigned int shift)
{
return (word >> shift) | (word << (32 - shift));
}
#define IS_ALIGNED(x, y) (((x) & ((y) - 1)) == 0)
#define round_down(x, y) rounddown2((x), (y))
#define round_up(x, y) roundup2((x), (y))
#define get_unaligned(ptr) \
({ __typeof__(*(ptr)) __tmp; \
memcpy(&__tmp, (ptr), sizeof(*(ptr))); __tmp; })
#if _BYTE_ORDER == _LITTLE_ENDIAN
/* Taken from linux/include/linux/unaligned/le_struct.h. */
struct __una_u32 { u32 x; } __packed;
static inline u32
__get_unaligned_cpu32(const void *p)
{
const struct __una_u32 *ptr = (const struct __una_u32 *)p;
return (ptr->x);
}
static inline u32
get_unaligned_le32(const void *p)
{
return (__get_unaligned_cpu32((const u8 *)p));
}
#else
/* Taken from linux/include/linux/unaligned/le_byteshift.h. */
static inline u32
__get_unaligned_le32(const u8 *p)
{
return (p[0] | p[1] << 8 | p[2] << 16 | p[3] << 24);
}
static inline u32
get_unaligned_le32(const void *p)
{
return (__get_unaligned_le32((const u8 *)p));
}
#endif
int64_t timeval_to_ns(const struct timeval *tv);
struct timeval ns_to_timeval(const int64_t nsec);
#define PAGE_ALIGN(addr) round_page(addr)
#define page_to_phys(x) VM_PAGE_TO_PHYS(x)
#define offset_in_page(x) ((x) & PAGE_MASK)
#define drm_get_device_from_kdev(_kdev) (((struct drm_minor *)(_kdev)->si_drv1)->dev)
#define DRM_IOC_VOID IOC_VOID
#define DRM_IOC_READ IOC_OUT
#define DRM_IOC_WRITE IOC_IN
#define DRM_IOC_READWRITE IOC_INOUT
#define DRM_IOC(dir, group, nr, size) _IOC(dir, group, nr, size)
static inline long
__copy_to_user(void __user *to, const void *from, unsigned long n)
{
return (copyout(from, to, n) != 0 ? n : 0);
}
#define copy_to_user(to, from, n) __copy_to_user((to), (from), (n))
static inline int
__put_user(size_t size, void *ptr, void *x)
{
size = copy_to_user(ptr, x, size);
return (size ? -EFAULT : size);
}
#define put_user(x, ptr) __put_user(sizeof(*ptr), (ptr), &(x))
static inline unsigned long
__copy_from_user(void *to, const void __user *from, unsigned long n)
{
return ((copyin(__DECONST(void *, from), to, n) != 0 ? n : 0));
}
#define copy_from_user(to, from, n) __copy_from_user((to), (from), (n))
static inline int
__get_user(size_t size, const void *ptr, void *x)
{
size = copy_from_user(x, ptr, size);
return (size ? -EFAULT : size);
}
#define get_user(x, ptr) __get_user(sizeof(*ptr), (ptr), &(x))
static inline int
__copy_to_user_inatomic(void __user *to, const void *from, unsigned n)
{
return (copyout_nofault(from, to, n) != 0 ? n : 0);
}
#define __copy_to_user_inatomic_nocache(to, from, n) \
__copy_to_user_inatomic((to), (from), (n))
static inline unsigned long
__copy_from_user_inatomic(void *to, const void __user *from,
unsigned long n)
{
/*
* XXXKIB. Equivalent Linux function is implemented using
* MOVNTI for aligned moves. For unaligned head and tail,
* normal move is performed. As such, it is not incorrect, if
* only somewhat slower, to use normal copyin. All uses
* except shmem_pwrite_fast() have the destination mapped WC.
*/
return ((copyin_nofault(__DECONST(void *, from), to, n) != 0 ? n : 0));
}
#define __copy_from_user_inatomic_nocache(to, from, n) \
__copy_from_user_inatomic((to), (from), (n))
static inline int
fault_in_multipages_readable(const char __user *uaddr, int size)
{
char c;
int ret = 0;
const char __user *end = uaddr + size - 1;
if (unlikely(size == 0))
return ret;
while (uaddr <= end) {
ret = -copyin(uaddr, &c, 1);
if (ret != 0)
return -EFAULT;
uaddr += PAGE_SIZE;
}
/* Check whether the range spilled into the next page. */
if (((unsigned long)uaddr & ~PAGE_MASK) ==
((unsigned long)end & ~PAGE_MASK)) {
ret = -copyin(end, &c, 1);
}
return ret;
}
static inline int
fault_in_multipages_writeable(char __user *uaddr, int size)
{
int ret = 0;
char __user *end = uaddr + size - 1;
if (unlikely(size == 0))
return ret;
/*
* Writing zeroes into userspace here is OK, because we know that if
* the zero gets there, we'll be overwriting it.
*/
while (uaddr <= end) {
ret = subyte(uaddr, 0);
if (ret != 0)
return -EFAULT;
uaddr += PAGE_SIZE;
}
/* Check whether the range spilled into the next page. */
if (((unsigned long)uaddr & ~PAGE_MASK) ==
((unsigned long)end & ~PAGE_MASK))
ret = subyte(end, 0);
return ret;
}
enum __drm_capabilities {
CAP_SYS_ADMIN
};
static inline bool
capable(enum __drm_capabilities cap)
{
switch (cap) {
case CAP_SYS_ADMIN:
return DRM_SUSER(curthread);
default:
panic("%s: unhandled capability: %0x", __func__, cap);
return (false);
}
}
#define to_user_ptr(x) ((void *)(uintptr_t)(x))
#define sigemptyset(set) SIGEMPTYSET(set)
#define sigaddset(set, sig) SIGADDSET(set, sig)
#define DRM_LOCK(dev) sx_xlock(&(dev)->dev_struct_lock)
#define DRM_UNLOCK(dev) sx_xunlock(&(dev)->dev_struct_lock)
extern unsigned long drm_linux_timer_hz_mask;
#define jiffies ticks
#define jiffies_to_msecs(x) (((int64_t)(x)) * 1000 / hz)
#define msecs_to_jiffies(x) (((int64_t)(x)) * hz / 1000)
#define timespec_to_jiffies(x) (((x)->tv_sec * 1000000 + (x)->tv_nsec) * hz / 1000000)
#define time_after(a,b) ((long)(b) - (long)(a) < 0)
#define time_after_eq(a,b) ((long)(b) - (long)(a) <= 0)
#define round_jiffies(j) ((unsigned long)(((j) + drm_linux_timer_hz_mask) & ~drm_linux_timer_hz_mask))
#define round_jiffies_up(j) round_jiffies(j) /* TODO */
#define round_jiffies_up_relative(j) round_jiffies_up(j) /* TODO */
#define getrawmonotonic(ts) getnanouptime(ts)
#define wake_up(queue) wakeup_one((void *)queue)
#define wake_up_interruptible(queue) wakeup_one((void *)queue)
#define wake_up_all(queue) wakeup((void *)queue)
#define wake_up_interruptible_all(queue) wakeup((void *)queue)
struct completion {
unsigned int done;
struct mtx lock;
};
#define INIT_COMPLETION(c) ((c).done = 0);
static inline void
init_completion(struct completion *c)
{
mtx_init(&c->lock, "drmcompl", NULL, MTX_DEF);
c->done = 0;
}
static inline void
free_completion(struct completion *c)
{
mtx_destroy(&c->lock);
}
static inline void
complete_all(struct completion *c)
{
mtx_lock(&c->lock);
c->done++;
mtx_unlock(&c->lock);
wakeup(c);
}
static inline long
wait_for_completion_interruptible_timeout(struct completion *c,
unsigned long timeout)
{
unsigned long start_jiffies, elapsed_jiffies;
bool timeout_expired = false, awakened = false;
long ret = timeout;
start_jiffies = ticks;
mtx_lock(&c->lock);
while (c->done == 0 && !timeout_expired) {
ret = -msleep(c, &c->lock, PCATCH, "drmwco", timeout);
switch(ret) {
case -EWOULDBLOCK:
timeout_expired = true;
ret = 0;
break;
case -EINTR:
case -ERESTART:
ret = -ERESTARTSYS;
break;
case 0:
awakened = true;
break;
}
}
mtx_unlock(&c->lock);
if (awakened) {
elapsed_jiffies = ticks - start_jiffies;
ret = timeout > elapsed_jiffies ? timeout - elapsed_jiffies : 1;
}
return (ret);
}
MALLOC_DECLARE(DRM_MEM_DMA);
MALLOC_DECLARE(DRM_MEM_SAREA);
MALLOC_DECLARE(DRM_MEM_DRIVER);
MALLOC_DECLARE(DRM_MEM_MAGIC);
MALLOC_DECLARE(DRM_MEM_MINOR);
MALLOC_DECLARE(DRM_MEM_IOCTLS);
MALLOC_DECLARE(DRM_MEM_MAPS);
MALLOC_DECLARE(DRM_MEM_BUFS);
MALLOC_DECLARE(DRM_MEM_SEGS);
MALLOC_DECLARE(DRM_MEM_PAGES);
MALLOC_DECLARE(DRM_MEM_FILES);
MALLOC_DECLARE(DRM_MEM_QUEUES);
MALLOC_DECLARE(DRM_MEM_CMDS);
MALLOC_DECLARE(DRM_MEM_MAPPINGS);
MALLOC_DECLARE(DRM_MEM_BUFLISTS);
MALLOC_DECLARE(DRM_MEM_AGPLISTS);
MALLOC_DECLARE(DRM_MEM_CTXBITMAP);
MALLOC_DECLARE(DRM_MEM_SGLISTS);
MALLOC_DECLARE(DRM_MEM_MM);
MALLOC_DECLARE(DRM_MEM_HASHTAB);
MALLOC_DECLARE(DRM_MEM_KMS);
MALLOC_DECLARE(DRM_MEM_VBLANK);
#define simple_strtol(a, b, c) strtol((a), (b), (c))
typedef struct drm_pci_id_list
{
int vendor;
int device;
long driver_private;
char *name;
} drm_pci_id_list_t;
#ifdef __i386__
#define CONFIG_X86 1
#endif
#ifdef __amd64__
#define CONFIG_X86 1
#define CONFIG_X86_64 1
#endif
#ifdef __ia64__
#define CONFIG_IA64 1
#endif
#if defined(__i386__) || defined(__amd64__)
#define CONFIG_ACPI
#define CONFIG_DRM_I915_KMS
#undef CONFIG_INTEL_IOMMU
#endif
#ifdef COMPAT_FREEBSD32
#define CONFIG_COMPAT
#endif
#ifndef __arm__
#define CONFIG_AGP 1
#define CONFIG_MTRR 1
#endif
#define CONFIG_FB 1
extern const char *fb_mode_option;
#undef CONFIG_DEBUG_FS
#undef CONFIG_VGA_CONSOLE
#define EXPORT_SYMBOL(x)
#define EXPORT_SYMBOL_GPL(x)
#define MODULE_AUTHOR(author)
#define MODULE_DESCRIPTION(desc)
#define MODULE_LICENSE(license)
#define MODULE_PARM_DESC(name, desc)
#define MODULE_DEVICE_TABLE(name, list)
#define module_param_named(name, var, type, perm)
#define printk printf
#define pr_err DRM_ERROR
#define pr_warn DRM_WARNING
#define pr_warn_once DRM_WARNING
#define KERN_DEBUG ""
/* I2C compatibility. */
#define I2C_M_RD IIC_M_RD
#define I2C_M_WR IIC_M_WR
#define I2C_M_NOSTART IIC_M_NOSTART
struct fb_info * framebuffer_alloc(void);
void framebuffer_release(struct fb_info *info);
#define console_lock()
#define console_unlock()
#define console_trylock() true
#define PM_EVENT_SUSPEND 0x0002
#define PM_EVENT_QUIESCE 0x0008
#define PM_EVENT_PRETHAW PM_EVENT_QUIESCE
typedef struct pm_message {
int event;
} pm_message_t;
static inline int
pci_read_config_byte(device_t kdev, int where, u8 *val)
{
*val = (u8)pci_read_config(kdev, where, 1);
return (0);
}
static inline int
pci_write_config_byte(device_t kdev, int where, u8 val)
{
pci_write_config(kdev, where, val, 1);
return (0);
}
static inline int
pci_read_config_word(device_t kdev, int where, uint16_t *val)
{
*val = (uint16_t)pci_read_config(kdev, where, 2);
return (0);
}
static inline int
pci_write_config_word(device_t kdev, int where, uint16_t val)
{
pci_write_config(kdev, where, val, 2);
return (0);
}
static inline int
pci_read_config_dword(device_t kdev, int where, uint32_t *val)
{
*val = (uint32_t)pci_read_config(kdev, where, 4);
return (0);
}
static inline int
pci_write_config_dword(device_t kdev, int where, uint32_t val)
{
pci_write_config(kdev, where, val, 4);
return (0);
}
static inline void
on_each_cpu(void callback(void *data), void *data, int wait)
{
smp_rendezvous(NULL, callback, NULL, data);
}
void hex_dump_to_buffer(const void *buf, size_t len, int rowsize,
int groupsize, char *linebuf, size_t linebuflen, bool ascii);
#define KIB_NOTYET() \
do { \
if (drm_debug && drm_notyet) \
printf("NOTYET: %s at %s:%d\n", __func__, __FILE__, __LINE__); \
} while (0)
#endif /* _DRM_OS_FREEBSD_H_ */
Reference in a new issue View git blame Copy permalink