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ddk: update

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git-svn-id: svn://kolibrios.org@4065 a494cfbc-eb01-0410-851d-a64ba20cac60
This commit is contained in:
Sergey Semyonov (Serge) 2013-10-20 23:07:47 +00:00
parent 097d6ce9a3
commit e3f61693b7
29 changed files with 2490 additions and 451 deletions
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70
drivers/ddk/linux/idr.c
View File

@ -175,20 +175,7 @@ static void idr_mark_full(struct idr_layer **pa, int id)
}
}
/**
* idr_pre_get - reserve resources for idr allocation
* @idp: idr handle
* @gfp_mask: memory allocation flags
*
* This function should be called prior to calling the idr_get_new* functions.
* It preallocates enough memory to satisfy the worst possible allocation. The
* caller should pass in GFP_KERNEL if possible. This of course requires that
* no spinning locks be held.
*
* If the system is REALLY out of memory this function returns %0,
* otherwise %1.
*/
int idr_pre_get(struct idr *idp, gfp_t gfp_mask)
int __idr_pre_get(struct idr *idp, gfp_t gfp_mask)
{
while (idp->id_free_cnt < MAX_IDR_FREE) {
struct idr_layer *new;
@ -199,13 +186,12 @@ int idr_pre_get(struct idr *idp, gfp_t gfp_mask)
}
return 1;
}
EXPORT_SYMBOL(idr_pre_get);
EXPORT_SYMBOL(__idr_pre_get);
/**
* sub_alloc - try to allocate an id without growing the tree depth
* @idp: idr handle
* @starting_id: id to start search at
* @id: pointer to the allocated handle
* @pa: idr_layer[MAX_IDR_LEVEL] used as backtrack buffer
* @gfp_mask: allocation mask for idr_layer_alloc()
* @layer_idr: optional idr passed to idr_layer_alloc()
@ -367,25 +353,7 @@ static void idr_fill_slot(struct idr *idr, void *ptr, int id,
idr_mark_full(pa, id);
}
/**
* idr_get_new_above - allocate new idr entry above or equal to a start id
* @idp: idr handle
* @ptr: pointer you want associated with the id
* @starting_id: id to start search at
* @id: pointer to the allocated handle
*
* This is the allocate id function. It should be called with any
* required locks.
*
* If allocation from IDR's private freelist fails, idr_get_new_above() will
* return %-EAGAIN. The caller should retry the idr_pre_get() call to refill
* IDR's preallocation and then retry the idr_get_new_above() call.
*
* If the idr is full idr_get_new_above() will return %-ENOSPC.
*
* @id returns a value in the range @starting_id ... %0x7fffffff
*/
int idr_get_new_above(struct idr *idp, void *ptr, int starting_id, int *id)
int __idr_get_new_above(struct idr *idp, void *ptr, int starting_id, int *id)
{
struct idr_layer *pa[MAX_IDR_LEVEL + 1];
int rv;
@ -398,7 +366,7 @@ int idr_get_new_above(struct idr *idp, void *ptr, int starting_id, int *id)
*id = rv;
return 0;
}
EXPORT_SYMBOL(idr_get_new_above);
EXPORT_SYMBOL(__idr_get_new_above);
/**
* idr_preload - preload for idr_alloc()
@ -496,9 +464,7 @@ EXPORT_SYMBOL_GPL(idr_alloc);
static void idr_remove_warning(int id)
{
printk(KERN_WARNING
"idr_remove called for id=%d which is not allocated.\n", id);
// dump_stack();
WARN(1, "idr_remove called for id=%d which is not allocated.\n", id);
}
static void sub_remove(struct idr *idp, int shift, int id)
@ -548,8 +514,7 @@ void idr_remove(struct idr *idp, int id)
struct idr_layer *p;
struct idr_layer *to_free;
/* see comment in idr_find_slowpath() */
if (WARN_ON_ONCE(id < 0))
if (id < 0)
return;
sub_remove(idp, (idp->layers - 1) * IDR_BITS, id);
@ -646,15 +611,7 @@ void *idr_find_slowpath(struct idr *idp, int id)
int n;
struct idr_layer *p;
/*
* If @id is negative, idr_find() used to ignore the sign bit and
* performed lookup with the rest of bits, which is weird and can
* lead to very obscure bugs. We're now returning NULL for all
* negative IDs but just in case somebody was depending on the sign
* bit being ignored, let's trigger WARN_ON_ONCE() so that they can
* be detected and fixed. WARN_ON_ONCE() can later be removed.
*/
if (WARN_ON_ONCE(id < 0))
if (id < 0)
return NULL;
p = rcu_dereference_raw(idp->top);
@ -804,8 +761,7 @@ void *idr_replace(struct idr *idp, void *ptr, int id)
int n;
struct idr_layer *p, *old_p;
/* see comment in idr_find_slowpath() */
if (WARN_ON_ONCE(id < 0))
if (id < 0)
return ERR_PTR(-EINVAL);
p = idp->top;
@ -838,7 +794,7 @@ EXPORT_SYMBOL(idr_replace);
#endif
void idr_init_cache(void)
void __init idr_init_cache(void)
{
//idr_layer_cache = kmem_cache_create("idr_layer_cache",
// sizeof(struct idr_layer), 0, SLAB_PANIC, NULL);
@ -858,7 +814,6 @@ void idr_init(struct idr *idp)
}
EXPORT_SYMBOL(idr_init);
#if 0
/**
* DOC: IDA description
@ -1002,7 +957,7 @@ int ida_get_new_above(struct ida *ida, int starting_id, int *p_id)
if (ida->idr.id_free_cnt || ida->free_bitmap) {
struct idr_layer *p = get_from_free_list(&ida->idr);
if (p)
kmem_cache_free(idr_layer_cache, p);
kfree(p);
}
return 0;
@ -1052,8 +1007,7 @@ void ida_remove(struct ida *ida, int id)
return;
err:
printk(KERN_WARNING
"ida_remove called for id=%d which is not allocated.\n", id);
WARN(1, "ida_remove called for id=%d which is not allocated.\n", id);
}
EXPORT_SYMBOL(ida_remove);
@ -1084,8 +1038,6 @@ void ida_init(struct ida *ida)
EXPORT_SYMBOL(ida_init);
#endif
unsigned long find_first_bit(const unsigned long *addr, unsigned long size)
{

62
drivers/include/drm/drmP.h
View File

@ -388,6 +388,7 @@ struct drm_waitlist {
spinlock_t read_lock;
spinlock_t write_lock;
};
#endif
struct drm_freelist {
int initialized; /**< Freelist in use */
@ -400,7 +401,6 @@ struct drm_freelist {
atomic_t wfh; /**< If waiting for high mark */
spinlock_t lock;
};
#endif
typedef struct drm_dma_handle {
dma_addr_t busaddr;
@ -408,7 +408,6 @@ typedef struct drm_dma_handle {
size_t size;
} drm_dma_handle_t;
#if 0
/**
* Buffer entry. There is one of this for each buffer size order.
*/
@ -438,7 +437,6 @@ struct drm_prime_file_private {
struct list_head head;
struct mutex lock;
};
#endif
/** File private data */
struct drm_file {
@ -1027,7 +1025,7 @@ struct drm_info_list {
struct drm_info_node {
struct list_head list;
struct drm_minor *minor;
struct drm_info_list *info_ent;
const struct drm_info_list *info_ent;
struct dentry *dent;
};
@ -1226,12 +1224,6 @@ static inline int drm_dev_to_irq(struct drm_device *dev)
#if 0
#ifdef __alpha__
#define drm_get_pci_domain(dev) dev->hose->index
#else
#define drm_get_pci_domain(dev) 0
#endif
#if __OS_HAS_AGP
static inline int drm_core_has_AGP(struct drm_device *dev)
{
@ -1246,39 +1238,28 @@ static inline int drm_core_has_MTRR(struct drm_device *dev)
{
return drm_core_check_feature(dev, DRIVER_USE_MTRR);
}
#define DRM_MTRR_WC MTRR_TYPE_WRCOMB
static inline int drm_mtrr_add(unsigned long offset, unsigned long size,
unsigned int flags)
{
return mtrr_add(offset, size, flags, 1);
}
static inline int drm_mtrr_del(int handle, unsigned long offset,
unsigned long size, unsigned int flags)
{
return mtrr_del(handle, offset, size);
}
#else
#define drm_core_has_MTRR(dev) (0)
#define DRM_MTRR_WC 0
static inline int drm_mtrr_add(unsigned long offset, unsigned long size,
unsigned int flags)
{
return 0;
}
static inline int drm_mtrr_del(int handle, unsigned long offset,
unsigned long size, unsigned int flags)
{
return 0;
}
#endif
static inline void drm_device_set_unplugged(struct drm_device *dev)
{
smp_wmb();
atomic_set(&dev->unplugged, 1);
}
static inline int drm_device_is_unplugged(struct drm_device *dev)
{
int ret = atomic_read(&dev->unplugged);
smp_rmb();
return ret;
}
static inline bool drm_modeset_is_locked(struct drm_device *dev)
{
return mutex_is_locked(&dev->mode_config.mutex);
}
/******************************************************************/
/** \name Internal function definitions */
/*@{*/
@ -1528,8 +1509,7 @@ extern struct idr drm_minors_idr;
extern struct drm_local_map *drm_getsarea(struct drm_device *dev);
/* Proc support (drm_proc.h) */
extern int drm_proc_init(struct drm_minor *minor, int minor_id,
struct proc_dir_entry *root);
extern int drm_proc_init(struct drm_minor *minor, struct proc_dir_entry *root);
extern int drm_proc_cleanup(struct drm_minor *minor, struct proc_dir_entry *root);
/* Debugfs support */

37
drivers/include/drm/drm_crtc.h
View File

@ -339,6 +339,9 @@ struct drm_crtc_funcs {
/* cursor controls */
int (*cursor_set)(struct drm_crtc *crtc, struct drm_file *file_priv,
uint32_t handle, uint32_t width, uint32_t height);
int (*cursor_set2)(struct drm_crtc *crtc, struct drm_file *file_priv,
uint32_t handle, uint32_t width, uint32_t height,
int32_t hot_x, int32_t hot_y);
int (*cursor_move)(struct drm_crtc *crtc, int x, int y);
/* Set gamma on the CRTC */
@ -409,6 +412,10 @@ struct drm_crtc {
/* framebuffer the connector is currently bound to */
struct drm_framebuffer *fb;
/* Temporary tracking of the old fb while a modeset is ongoing. Used
* by drm_mode_set_config_internal to implement correct refcounting. */
struct drm_framebuffer *old_fb;
bool enabled;
/* Requested mode from modesetting. */
@ -654,11 +661,7 @@ struct drm_plane_funcs {
* @format_count: number of formats supported
* @crtc: currently bound CRTC
* @fb: currently bound fb
* @gamma_size: size of gamma table
* @gamma_store: gamma correction table
* @enabled: enabled flag
* @funcs: helper functions
* @helper_private: storage for drver layer
* @properties: property tracking for this plane
*/
struct drm_plane {
@ -674,14 +677,7 @@ struct drm_plane {
struct drm_crtc *crtc;
struct drm_framebuffer *fb;
/* CRTC gamma size for reporting to userspace */
uint32_t gamma_size;
uint16_t *gamma_store;
bool enabled;
const struct drm_plane_funcs *funcs;
void *helper_private;
struct drm_object_properties properties;
};
@ -894,15 +890,17 @@ extern int drm_plane_init(struct drm_device *dev,
const uint32_t *formats, uint32_t format_count,
bool priv);
extern void drm_plane_cleanup(struct drm_plane *plane);
extern void drm_plane_force_disable(struct drm_plane *plane);
extern void drm_encoder_cleanup(struct drm_encoder *encoder);
extern char *drm_get_connector_name(struct drm_connector *connector);
extern char *drm_get_dpms_name(int val);
extern char *drm_get_dvi_i_subconnector_name(int val);
extern char *drm_get_dvi_i_select_name(int val);
extern char *drm_get_tv_subconnector_name(int val);
extern char *drm_get_tv_select_name(int val);
extern const char *drm_get_connector_name(const struct drm_connector *connector);
extern const char *drm_get_connector_status_name(enum drm_connector_status status);
extern const char *drm_get_dpms_name(int val);
extern const char *drm_get_dvi_i_subconnector_name(int val);
extern const char *drm_get_dvi_i_select_name(int val);
extern const char *drm_get_tv_subconnector_name(int val);
extern const char *drm_get_tv_select_name(int val);
extern void drm_fb_release(struct drm_file *file_priv);
extern int drm_mode_group_init_legacy_group(struct drm_device *dev, struct drm_mode_group *group);
extern bool drm_probe_ddc(struct i2c_adapter *adapter);
@ -994,7 +992,7 @@ extern int drm_mode_create_tv_properties(struct drm_device *dev, int num_formats
extern int drm_mode_create_scaling_mode_property(struct drm_device *dev);
extern int drm_mode_create_dithering_property(struct drm_device *dev);
extern int drm_mode_create_dirty_info_property(struct drm_device *dev);
extern char *drm_get_encoder_name(struct drm_encoder *encoder);
extern const char *drm_get_encoder_name(const struct drm_encoder *encoder);
extern int drm_mode_connector_attach_encoder(struct drm_connector *connector,
struct drm_encoder *encoder);
@ -1022,6 +1020,8 @@ extern int drm_mode_setplane(struct drm_device *dev,
void *data, struct drm_file *file_priv);
extern int drm_mode_cursor_ioctl(struct drm_device *dev,
void *data, struct drm_file *file_priv);
extern int drm_mode_cursor2_ioctl(struct drm_device *dev,
void *data, struct drm_file *file_priv);
extern int drm_mode_addfb(struct drm_device *dev,
void *data, struct drm_file *file_priv);
extern int drm_mode_addfb2(struct drm_device *dev,
@ -1094,5 +1094,6 @@ extern int drm_format_num_planes(uint32_t format);
extern int drm_format_plane_cpp(uint32_t format, int plane);
extern int drm_format_horz_chroma_subsampling(uint32_t format);
extern int drm_format_vert_chroma_subsampling(uint32_t format);
extern const char *drm_get_format_name(uint32_t format);
#endif /* __DRM_CRTC_H__ */

92
drivers/include/drm/drm_fixed.h
View File

@ -20,6 +20,7 @@
* OTHER DEALINGS IN THE SOFTWARE.
*
* Authors: Dave Airlie
* Christian Konig
*/
#ifndef DRM_FIXED_H
#define DRM_FIXED_H
@ -65,4 +66,95 @@ static inline u32 dfixed_div(fixed20_12 A, fixed20_12 B)
tmp /= 2;
return lower_32_bits(tmp);
}
#define DRM_FIXED_POINT 32
#define DRM_FIXED_ONE (1ULL << DRM_FIXED_POINT)
#define DRM_FIXED_DECIMAL_MASK (DRM_FIXED_ONE - 1)
#define DRM_FIXED_DIGITS_MASK (~DRM_FIXED_DECIMAL_MASK)
static inline s64 drm_int2fixp(int a)
{
return ((s64)a) << DRM_FIXED_POINT;
}
static inline int drm_fixp2int(int64_t a)
{
return ((s64)a) >> DRM_FIXED_POINT;
}
static inline unsigned drm_fixp_msbset(int64_t a)
{
unsigned shift, sign = (a >> 63) & 1;
for (shift = 62; shift > 0; --shift)
if (((a >> shift) & 1) != sign)
return shift;
return 0;
}
static inline s64 drm_fixp_mul(s64 a, s64 b)
{
unsigned shift = drm_fixp_msbset(a) + drm_fixp_msbset(b);
s64 result;
if (shift > 61) {
shift = shift - 61;
a >>= (shift >> 1) + (shift & 1);
b >>= shift >> 1;
} else
shift = 0;
result = a * b;
if (shift > DRM_FIXED_POINT)
return result << (shift - DRM_FIXED_POINT);
if (shift < DRM_FIXED_POINT)
return result >> (DRM_FIXED_POINT - shift);
return result;
}
static inline s64 drm_fixp_div(s64 a, s64 b)
{
unsigned shift = 62 - drm_fixp_msbset(a);
s64 result;
a <<= shift;
if (shift < DRM_FIXED_POINT)
b >>= (DRM_FIXED_POINT - shift);
result = div64_s64(a, b);
if (shift > DRM_FIXED_POINT)
return result >> (shift - DRM_FIXED_POINT);
return result;
}
static inline s64 drm_fixp_exp(s64 x)
{
s64 tolerance = div64_s64(DRM_FIXED_ONE, 1000000);
s64 sum = DRM_FIXED_ONE, term, y = x;
u64 count = 1;
if (x < 0)
y = -1 * x;
term = y;
while (term >= tolerance) {
sum = sum + term;
count = count + 1;
term = drm_fixp_mul(term, div64_s64(y, count));
}
if (x < 0)
sum = drm_fixp_div(DRM_FIXED_ONE, sum);
return sum;
}
#endif

158
drivers/include/drm/drm_hashtab.h
View File

@ -1,79 +1,79 @@
/**************************************************************************
*
* Copyright 2006 Tungsten Graphics, Inc., Bismack, ND. USA.
* All Rights Reserved.
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the
* "Software"), to deal in the Software without restriction, including
* without limitation the rights to use, copy, modify, merge, publish,
* distribute, sub license, and/or sell copies of the Software, and to
* permit persons to whom the Software is furnished to do so, subject to
* the following conditions:
*
* The above copyright notice and this permission notice (including the
* next paragraph) shall be included in all copies or substantial portions
* of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL
* THE COPYRIGHT HOLDERS, AUTHORS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM,
* DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
* OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
* USE OR OTHER DEALINGS IN THE SOFTWARE.
*
*
**************************************************************************/
/*
* Simple open hash tab implementation.
*
* Authors:
* Thomas Hellström <thomas-at-tungstengraphics-dot-com>
*/
#ifndef DRM_HASHTAB_H
#define DRM_HASHTAB_H
#include <linux/list.h>
#define drm_hash_entry(_ptr, _type, _member) container_of(_ptr, _type, _member)
struct drm_hash_item {
struct hlist_node head;
unsigned long key;
};
struct drm_open_hash {
struct hlist_head *table;
u8 order;
};
extern int drm_ht_create(struct drm_open_hash *ht, unsigned int order);
extern int drm_ht_insert_item(struct drm_open_hash *ht, struct drm_hash_item *item);
extern int drm_ht_just_insert_please(struct drm_open_hash *ht, struct drm_hash_item *item,
unsigned long seed, int bits, int shift,
unsigned long add);
extern int drm_ht_find_item(struct drm_open_hash *ht, unsigned long key, struct drm_hash_item **item);
extern void drm_ht_verbose_list(struct drm_open_hash *ht, unsigned long key);
extern int drm_ht_remove_key(struct drm_open_hash *ht, unsigned long key);
extern int drm_ht_remove_item(struct drm_open_hash *ht, struct drm_hash_item *item);
extern void drm_ht_remove(struct drm_open_hash *ht);
/*
* RCU-safe interface
*
* The user of this API needs to make sure that two or more instances of the
* hash table manipulation functions are never run simultaneously.
* The lookup function drm_ht_find_item_rcu may, however, run simultaneously
* with any of the manipulation functions as long as it's called from within
* an RCU read-locked section.
*/
#define drm_ht_insert_item_rcu drm_ht_insert_item
#define drm_ht_just_insert_please_rcu drm_ht_just_insert_please
#define drm_ht_remove_key_rcu drm_ht_remove_key
#define drm_ht_remove_item_rcu drm_ht_remove_item
#define drm_ht_find_item_rcu drm_ht_find_item
#endif
/**************************************************************************
*
* Copyright 2006 Tungsten Graphics, Inc., Bismack, ND. USA.
* All Rights Reserved.
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the
* "Software"), to deal in the Software without restriction, including
* without limitation the rights to use, copy, modify, merge, publish,
* distribute, sub license, and/or sell copies of the Software, and to
* permit persons to whom the Software is furnished to do so, subject to
* the following conditions:
*
* The above copyright notice and this permission notice (including the
* next paragraph) shall be included in all copies or substantial portions
* of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL
* THE COPYRIGHT HOLDERS, AUTHORS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM,
* DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
* OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
* USE OR OTHER DEALINGS IN THE SOFTWARE.
*
*
**************************************************************************/
/*
* Simple open hash tab implementation.
*
* Authors:
* Thomas Hellström <thomas-at-tungstengraphics-dot-com>
*/
#ifndef DRM_HASHTAB_H
#define DRM_HASHTAB_H
#include <linux/list.h>
#define drm_hash_entry(_ptr, _type, _member) container_of(_ptr, _type, _member)
struct drm_hash_item {
struct hlist_node head;
unsigned long key;
};
struct drm_open_hash {
struct hlist_head *table;
u8 order;
};
extern int drm_ht_create(struct drm_open_hash *ht, unsigned int order);
extern int drm_ht_insert_item(struct drm_open_hash *ht, struct drm_hash_item *item);
extern int drm_ht_just_insert_please(struct drm_open_hash *ht, struct drm_hash_item *item,
unsigned long seed, int bits, int shift,
unsigned long add);
extern int drm_ht_find_item(struct drm_open_hash *ht, unsigned long key, struct drm_hash_item **item);
extern void drm_ht_verbose_list(struct drm_open_hash *ht, unsigned long key);
extern int drm_ht_remove_key(struct drm_open_hash *ht, unsigned long key);
extern int drm_ht_remove_item(struct drm_open_hash *ht, struct drm_hash_item *item);
extern void drm_ht_remove(struct drm_open_hash *ht);
/*
* RCU-safe interface
*
* The user of this API needs to make sure that two or more instances of the
* hash table manipulation functions are never run simultaneously.
* The lookup function drm_ht_find_item_rcu may, however, run simultaneously
* with any of the manipulation functions as long as it's called from within
* an RCU read-locked section.
*/
#define drm_ht_insert_item_rcu drm_ht_insert_item
#define drm_ht_just_insert_please_rcu drm_ht_just_insert_please
#define drm_ht_remove_key_rcu drm_ht_remove_key
#define drm_ht_remove_item_rcu drm_ht_remove_item
#define drm_ht_find_item_rcu drm_ht_find_item
#endif

57
drivers/include/drm/drm_memory.h Normal file
View File

@ -0,0 +1,57 @@
/**
* \file drm_memory.h
* Memory management wrappers for DRM
*
* \author Rickard E. (Rik) Faith <faith@valinux.com>
* \author Gareth Hughes <gareth@valinux.com>
*/
/*
* Created: Thu Feb 4 14:00:34 1999 by faith@valinux.com
*
* Copyright 1999 Precision Insight, Inc., Cedar Park, Texas.
* Copyright 2000 VA Linux Systems, Inc., Sunnyvale, California.
* All Rights Reserved.
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the "Software"),
* to deal in the Software without restriction, including without limitation
* the rights to use, copy, modify, merge, publish, distribute, sublicense,
* and/or sell copies of the Software, and to permit persons to whom the
* Software is furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice (including the next
* paragraph) shall be included in all copies or substantial portions of the
* Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
* VA LINUX SYSTEMS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
* OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
* ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
* OTHER DEALINGS IN THE SOFTWARE.
*/
#include <drm/drmP.h>
/**
* Cut down version of drm_memory_debug.h, which used to be called
* drm_memory.h.
*/
#if __OS_HAS_AGP
#ifdef HAVE_PAGE_AGP
#include <asm/agp.h>
#else
# ifdef __powerpc__
# define PAGE_AGP __pgprot(_PAGE_KERNEL | _PAGE_NO_CACHE)
# else
# define PAGE_AGP PAGE_KERNEL
# endif
#endif
#else /* __OS_HAS_AGP */
#endif

34
drivers/include/drm/drm_mm.h
View File

@ -177,17 +177,6 @@ static inline struct drm_mm_node *drm_mm_get_block_range(
return drm_mm_get_block_range_generic(parent, size, alignment, 0,
start, end, 0);
}
static inline struct drm_mm_node *drm_mm_get_color_block_range(
struct drm_mm_node *parent,
unsigned long size,
unsigned alignment,
unsigned long color,
unsigned long start,
unsigned long end)
{
return drm_mm_get_block_range_generic(parent, size, alignment, color,
start, end, 0);
}
static inline struct drm_mm_node *drm_mm_get_block_atomic_range(
struct drm_mm_node *parent,
unsigned long size,
@ -255,27 +244,8 @@ static inline struct drm_mm_node *drm_mm_search_free_in_range(
return drm_mm_search_free_in_range_generic(mm, size, alignment, 0,
start, end, best_match);
}
static inline struct drm_mm_node *drm_mm_search_free_color(const struct drm_mm *mm,
unsigned long size,
unsigned alignment,
unsigned long color,
bool best_match)
{
return drm_mm_search_free_generic(mm,size, alignment, color, best_match);
}
static inline struct drm_mm_node *drm_mm_search_free_in_range_color(
const struct drm_mm *mm,
unsigned long size,
unsigned alignment,
unsigned long color,
unsigned long start,
unsigned long end,
bool best_match)
{
return drm_mm_search_free_in_range_generic(mm, size, alignment, color,
start, end, best_match);
}
extern int drm_mm_init(struct drm_mm *mm,
extern void drm_mm_init(struct drm_mm *mm,
unsigned long start,
unsigned long size);
extern void drm_mm_takedown(struct drm_mm *mm);

24
drivers/include/drm/drm_pciids.h
View File

@ -152,6 +152,14 @@
{0x1002, 0x6621, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_OLAND|RADEON_IS_MOBILITY|RADEON_NEW_MEMMAP}, \
{0x1002, 0x6623, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_OLAND|RADEON_IS_MOBILITY|RADEON_NEW_MEMMAP}, \
{0x1002, 0x6631, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_OLAND|RADEON_NEW_MEMMAP}, \
{0x1002, 0x6640, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_BONAIRE|RADEON_IS_MOBILITY|RADEON_NEW_MEMMAP}, \
{0x1002, 0x6641, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_BONAIRE|RADEON_IS_MOBILITY|RADEON_NEW_MEMMAP}, \
{0x1002, 0x6649, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_BONAIRE|RADEON_NEW_MEMMAP}, \
{0x1002, 0x6650, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_BONAIRE|RADEON_NEW_MEMMAP}, \
{0x1002, 0x6651, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_BONAIRE|RADEON_NEW_MEMMAP}, \
{0x1002, 0x6658, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_BONAIRE|RADEON_NEW_MEMMAP}, \
{0x1002, 0x665c, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_BONAIRE|RADEON_NEW_MEMMAP}, \
{0x1002, 0x665d, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_BONAIRE|RADEON_NEW_MEMMAP}, \
{0x1002, 0x6660, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_HAINAN|RADEON_IS_MOBILITY|RADEON_NEW_MEMMAP}, \
{0x1002, 0x6663, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_HAINAN|RADEON_IS_MOBILITY|RADEON_NEW_MEMMAP}, \
{0x1002, 0x6664, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_HAINAN|RADEON_IS_MOBILITY|RADEON_NEW_MEMMAP}, \
@ -580,6 +588,22 @@
{0x1002, 0x9808, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_PALM|RADEON_NEW_MEMMAP|RADEON_IS_IGP}, \
{0x1002, 0x9809, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_PALM|RADEON_NEW_MEMMAP|RADEON_IS_IGP}, \
{0x1002, 0x980A, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_PALM|RADEON_NEW_MEMMAP|RADEON_IS_IGP}, \
{0x1002, 0x9830, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_KABINI|RADEON_IS_MOBILITY|RADEON_NEW_MEMMAP|RADEON_IS_IGP}, \
{0x1002, 0x9831, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_KABINI|RADEON_NEW_MEMMAP|RADEON_IS_IGP}, \
{0x1002, 0x9832, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_KABINI|RADEON_IS_MOBILITY|RADEON_NEW_MEMMAP|RADEON_IS_IGP}, \
{0x1002, 0x9833, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_KABINI|RADEON_NEW_MEMMAP|RADEON_IS_IGP}, \
{0x1002, 0x9834, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_KABINI|RADEON_IS_MOBILITY|RADEON_NEW_MEMMAP|RADEON_IS_IGP}, \
{0x1002, 0x9835, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_KABINI|RADEON_NEW_MEMMAP|RADEON_IS_IGP}, \
{0x1002, 0x9836, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_KABINI|RADEON_IS_MOBILITY|RADEON_NEW_MEMMAP|RADEON_IS_IGP}, \
{0x1002, 0x9837, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_KABINI|RADEON_NEW_MEMMAP|RADEON_IS_IGP}, \
{0x1002, 0x9838, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_KABINI|RADEON_IS_MOBILITY|RADEON_NEW_MEMMAP|RADEON_IS_IGP}, \
{0x1002, 0x9839, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_KABINI|RADEON_IS_MOBILITY|RADEON_NEW_MEMMAP|RADEON_IS_IGP}, \
{0x1002, 0x983a, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_KABINI|RADEON_NEW_MEMMAP|RADEON_IS_IGP}, \
{0x1002, 0x983b, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_KABINI|RADEON_IS_MOBILITY|RADEON_NEW_MEMMAP|RADEON_IS_IGP}, \
{0x1002, 0x983c, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_KABINI|RADEON_NEW_MEMMAP|RADEON_IS_IGP}, \
{0x1002, 0x983d, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_KABINI|RADEON_NEW_MEMMAP|RADEON_IS_IGP}, \
{0x1002, 0x983e, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_KABINI|RADEON_NEW_MEMMAP|RADEON_IS_IGP}, \
{0x1002, 0x983f, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_KABINI|RADEON_NEW_MEMMAP|RADEON_IS_IGP}, \
{0x1002, 0x9900, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_ARUBA|RADEON_IS_MOBILITY|RADEON_NEW_MEMMAP|RADEON_IS_IGP}, \
{0x1002, 0x9901, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_ARUBA|RADEON_NEW_MEMMAP|RADEON_IS_IGP}, \
{0x1002, 0x9903, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_ARUBA|RADEON_IS_MOBILITY|RADEON_NEW_MEMMAP|RADEON_IS_IGP}, \

167
drivers/include/drm/drm_rect.h Normal file
View File

@ -0,0 +1,167 @@
/*
* Copyright (C) 2011-2013 Intel Corporation
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the "Software"),
* to deal in the Software without restriction, including without limitation
* the rights to use, copy, modify, merge, publish, distribute, sublicense,
* and/or sell copies of the Software, and to permit persons to whom the
* Software is furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice (including the next
* paragraph) shall be included in all copies or substantial portions of the
* Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE.
*/
#ifndef DRM_RECT_H
#define DRM_RECT_H
/**
* DOC: rect utils
*
* Utility functions to help manage rectangular areas for
* clipping, scaling, etc. calculations.
*/
/**
* struct drm_rect - two dimensional rectangle
* @x1: horizontal starting coordinate (inclusive)
* @x2: horizontal ending coordinate (exclusive)
* @y1: vertical starting coordinate (inclusive)
* @y2: vertical ending coordinate (exclusive)
*/
struct drm_rect {
int x1, y1, x2, y2;
};
/**
* drm_rect_adjust_size - adjust the size of the rectangle
* @r: rectangle to be adjusted
* @dw: horizontal adjustment
* @dh: vertical adjustment
*
* Change the size of rectangle @r by @dw in the horizontal direction,
* and by @dh in the vertical direction, while keeping the center
* of @r stationary.
*
* Positive @dw and @dh increase the size, negative values decrease it.
*/
static inline void drm_rect_adjust_size(struct drm_rect *r, int dw, int dh)
{
r->x1 -= dw >> 1;
r->y1 -= dh >> 1;
r->x2 += (dw + 1) >> 1;
r->y2 += (dh + 1) >> 1;
}
/**
* drm_rect_translate - translate the rectangle
* @r: rectangle to be tranlated
* @dx: horizontal translation
* @dy: vertical translation
*
* Move rectangle @r by @dx in the horizontal direction,
* and by @dy in the vertical direction.
*/
static inline void drm_rect_translate(struct drm_rect *r, int dx, int dy)
{
r->x1 += dx;
r->y1 += dy;
r->x2 += dx;
r->y2 += dy;
}
/**
* drm_rect_downscale - downscale a rectangle
* @r: rectangle to be downscaled
* @horz: horizontal downscale factor
* @vert: vertical downscale factor
*
* Divide the coordinates of rectangle @r by @horz and @vert.
*/
static inline void drm_rect_downscale(struct drm_rect *r, int horz, int vert)
{
r->x1 /= horz;
r->y1 /= vert;
r->x2 /= horz;
r->y2 /= vert;
}
/**
* drm_rect_width - determine the rectangle width
* @r: rectangle whose width is returned
*
* RETURNS:
* The width of the rectangle.
*/
static inline int drm_rect_width(const struct drm_rect *r)
{
return r->x2 - r->x1;
}
/**
* drm_rect_height - determine the rectangle height
* @r: rectangle whose height is returned
*
* RETURNS:
* The height of the rectangle.
*/
static inline int drm_rect_height(const struct drm_rect *r)
{
return r->y2 - r->y1;
}
/**
* drm_rect_visible - determine if the the rectangle is visible
* @r: rectangle whose visibility is returned
*
* RETURNS:
* %true if the rectangle is visible, %false otherwise.
*/
static inline bool drm_rect_visible(const struct drm_rect *r)
{
return drm_rect_width(r) > 0 && drm_rect_height(r) > 0;
}
/**
* drm_rect_equals - determine if two rectangles are equal
* @r1: first rectangle
* @r2: second rectangle
*
* RETURNS:
* %true if the rectangles are equal, %false otherwise.
*/
static inline bool drm_rect_equals(const struct drm_rect *r1,
const struct drm_rect *r2)
{
return r1->x1 == r2->x1 && r1->x2 == r2->x2 &&
r1->y1 == r2->y1 && r1->y2 == r2->y2;
}
bool drm_rect_intersect(struct drm_rect *r, const struct drm_rect *clip);
bool drm_rect_clip_scaled(struct drm_rect *src, struct drm_rect *dst,
const struct drm_rect *clip,
int hscale, int vscale);
int drm_rect_calc_hscale(const struct drm_rect *src,
const struct drm_rect *dst,
int min_hscale, int max_hscale);
int drm_rect_calc_vscale(const struct drm_rect *src,
const struct drm_rect *dst,
int min_vscale, int max_vscale);
int drm_rect_calc_hscale_relaxed(struct drm_rect *src,
struct drm_rect *dst,
int min_hscale, int max_hscale);
int drm_rect_calc_vscale_relaxed(struct drm_rect *src,
struct drm_rect *dst,
int min_vscale, int max_vscale);
void drm_rect_debug_print(const struct drm_rect *r, bool fixed_point);
#endif

40
drivers/include/drm/ttm/ttm_bo_api.h
View File

@ -44,6 +44,10 @@ struct ttm_bo_device;
struct drm_mm_node;
struct reservation_object {
struct mutex lock;
};
/**
* struct ttm_placement
@ -153,7 +157,6 @@ struct ttm_tt;
* Lru lists may keep one refcount, the delayed delete list, and kref != 0
* keeps one refcount. When this refcount reaches zero,
* the object is destroyed.
* @event_queue: Queue for processes waiting on buffer object status change.
* @mem: structure describing current placement.
* @persistent_swap_storage: Usually the swap storage is deleted for buffers
* pinned in physical memory. If this behaviour is not desired, this member
@ -164,12 +167,6 @@ struct ttm_tt;
* @lru: List head for the lru list.
* @ddestroy: List head for the delayed destroy list.
* @swap: List head for swap LRU list.
* @val_seq: Sequence of the validation holding the @reserved lock.
* Used to avoid starvation when many processes compete to validate the
* buffer. This member is protected by the bo_device::lru_lock.
* @seq_valid: The value of @val_seq is valid. This value is protected by
* the bo_device::lru_lock.
* @reserved: Deadlock-free lock used for synchronization state transitions.
* @sync_obj: Pointer to a synchronization object.
* @priv_flags: Flags describing buffer object internal state.
* @vm_rb: Rb node for the vm rb tree.
@ -209,10 +206,9 @@ struct ttm_buffer_object {
struct kref kref;
struct kref list_kref;
wait_queue_head_t event_queue;
/**
* Members protected by the bo::reserved lock.
* Members protected by the bo::resv::reserved lock.
*/
struct ttm_mem_reg mem;
@ -234,15 +230,6 @@ struct ttm_buffer_object {
struct list_head ddestroy;
struct list_head swap;
struct list_head io_reserve_lru;
uint32_t val_seq;
bool seq_valid;
/**
* Members protected by the bdev::lru_lock
* only when written to.
*/
atomic_t reserved;
/**
* Members protected by struct buffer_object_device::fence_lock
@ -272,6 +259,9 @@ struct ttm_buffer_object {
uint32_t cur_placement;
struct sg_table *sg;
struct reservation_object *resv;
struct reservation_object ttm_resv;
};
/**
@ -725,18 +715,4 @@ extern ssize_t ttm_bo_io(struct ttm_bo_device *bdev, struct file *filp,
extern void ttm_bo_swapout_all(struct ttm_bo_device *bdev);
/**
* ttm_bo_is_reserved - return an indication if a ttm buffer object is reserved
*
* @bo: The buffer object to check.
*
* This function returns an indication if a bo is reserved or not, and should
* only be used to print an error when it is not from incorrect api usage, since
* there's no guarantee that it is the caller that is holding the reservation.
*/
static inline bool ttm_bo_is_reserved(struct ttm_buffer_object *bo)
{
return atomic_read(&bo->reserved);
}
#endif

138
drivers/include/drm/ttm/ttm_bo_driver.h
View File

@ -33,12 +33,15 @@
#include <ttm/ttm_bo_api.h>
#include <ttm/ttm_memory.h>
#include <ttm/ttm_module.h>
#include <ttm/ttm_placement.h>
#include <drm/drm_mm.h>
#include <drm/drm_global.h>
//#include <linux/workqueue.h>
//#include <linux/fs.h>
#include <linux/spinlock.h>
struct ww_acquire_ctx;
struct ttm_backend_func {
/**
* struct ttm_backend_func member bind
@ -778,8 +781,8 @@ extern void ttm_mem_io_unlock(struct ttm_mem_type_manager *man);
* @bo: A pointer to a struct ttm_buffer_object.
* @interruptible: Sleep interruptible if waiting.
* @no_wait: Don't sleep while trying to reserve, rather return -EBUSY.
* @use_sequence: If @bo is already reserved, Only sleep waiting for
* it to become unreserved if @sequence < (@bo)->sequence.
* @use_ticket: If @bo is already reserved, Only sleep waiting for
* it to become unreserved if @ticket->stamp is older.
*
* Locks a buffer object for validation. (Or prevents other processes from
* locking it for validation) and removes it from lru lists, while taking
@ -790,19 +793,10 @@ extern void ttm_mem_io_unlock(struct ttm_mem_type_manager *man);
* to make room for a buffer already reserved. (Buffers are reserved before
* they are evicted). The following algorithm prevents such deadlocks from
* occurring:
* 1) Buffers are reserved with the lru spinlock held. Upon successful
* reservation they are removed from the lru list. This stops a reserved buffer
* from being evicted. However the lru spinlock is released between the time
* a buffer is selected for eviction and the time it is reserved.
* Therefore a check is made when a buffer is reserved for eviction, that it
* is still the first buffer in the lru list, before it is removed from the
* list. @check_lru == 1 forces this check. If it fails, the function returns
* -EINVAL, and the caller should then choose a new buffer to evict and repeat
* the procedure.
* 2) Processes attempting to reserve multiple buffers other than for eviction,
* Processes attempting to reserve multiple buffers other than for eviction,
* (typically execbuf), should first obtain a unique 32-bit
* validation sequence number,
* and call this function with @use_sequence == 1 and @sequence == the unique
* and call this function with @use_ticket == 1 and @ticket->stamp == the unique
* sequence number. If upon call of this function, the buffer object is already
* reserved, the validation sequence is checked against the validation
* sequence of the process currently reserving the buffer,
@ -817,48 +811,81 @@ extern void ttm_mem_io_unlock(struct ttm_mem_type_manager *man);
* will eventually succeed, preventing both deadlocks and starvation.
*
* Returns:
* -EAGAIN: The reservation may cause a deadlock.
* -EDEADLK: The reservation may cause a deadlock.
* Release all buffer reservations, wait for @bo to become unreserved and
* try again. (only if use_sequence == 1).
* -ERESTARTSYS: A wait for the buffer to become unreserved was interrupted by
* a signal. Release all buffer reservations and return to user-space.
* -EBUSY: The function needed to sleep, but @no_wait was true
* -EDEADLK: Bo already reserved using @sequence. This error code will only
* be returned if @use_sequence is set to true.
* -EALREADY: Bo already reserved using @ticket. This error code will only
* be returned if @use_ticket is set to true.
*/
extern int ttm_bo_reserve(struct ttm_buffer_object *bo,
static inline int ttm_bo_reserve(struct ttm_buffer_object *bo,
bool interruptible,
bool no_wait, bool use_sequence, uint32_t sequence);
bool no_wait, bool use_ticket,
struct ww_acquire_ctx *ticket)
{
int ret;
WARN_ON(!atomic_read(&bo->kref.refcount));
ret = ttm_bo_reserve_nolru(bo, interruptible, no_wait, use_ticket,
ticket);
if (likely(ret == 0))
ttm_bo_del_sub_from_lru(bo);
return ret;
}
/**
* ttm_bo_reserve_locked:
*
* ttm_bo_reserve_slowpath:
* @bo: A pointer to a struct ttm_buffer_object.
* @interruptible: Sleep interruptible if waiting.
* @no_wait: Don't sleep while trying to reserve, rather return -EBUSY.
* @use_sequence: If @bo is already reserved, Only sleep waiting for
* it to become unreserved if @sequence < (@bo)->sequence.
* @sequence: Set (@bo)->sequence to this value after lock
*
* Must be called with struct ttm_bo_global::lru_lock held,
* and will not remove reserved buffers from the lru lists.
* The function may release the LRU spinlock if it needs to sleep.
* Otherwise identical to ttm_bo_reserve.
*
* Returns:
* -EAGAIN: The reservation may cause a deadlock.
* Release all buffer reservations, wait for @bo to become unreserved and
* try again. (only if use_sequence == 1).
* -ERESTARTSYS: A wait for the buffer to become unreserved was interrupted by
* a signal. Release all buffer reservations and return to user-space.
* -EBUSY: The function needed to sleep, but @no_wait was true
* -EDEADLK: Bo already reserved using @sequence. This error code will only
* be returned if @use_sequence is set to true.
* This is called after ttm_bo_reserve returns -EAGAIN and we backed off
* from all our other reservations. Because there are no other reservations
* held by us, this function cannot deadlock any more.
*/
extern int ttm_bo_reserve_locked(struct ttm_buffer_object *bo,
static inline int ttm_bo_reserve_slowpath(struct ttm_buffer_object *bo,
bool interruptible,
bool no_wait, bool use_sequence,
uint32_t sequence);
struct ww_acquire_ctx *ticket)
{
int ret = 0;
WARN_ON(!atomic_read(&bo->kref.refcount));
if (interruptible)
ret = ww_mutex_lock_slow_interruptible(&bo->resv->lock,
ticket);
else
ww_mutex_lock_slow(&bo->resv->lock, ticket);
if (likely(ret == 0))
ttm_bo_del_sub_from_lru(bo);
else if (ret == -EINTR)
ret = -ERESTARTSYS;
return ret;
}
/**
* ttm_bo_unreserve_ticket
* @bo: A pointer to a struct ttm_buffer_object.
* @ticket: ww_acquire_ctx used for reserving
*
* Unreserve a previous reservation of @bo made with @ticket.
*/
static inline void ttm_bo_unreserve_ticket(struct ttm_buffer_object *bo,
struct ww_acquire_ctx *t)
{
if (!(bo->mem.placement & TTM_PL_FLAG_NO_EVICT)) {
spin_lock(&bo->glob->lru_lock);
ttm_bo_add_to_lru(bo);
spin_unlock(&bo->glob->lru_lock);
}
ww_mutex_unlock(&bo->resv->lock);
}
/**
* ttm_bo_unreserve
@ -867,34 +894,19 @@ extern int ttm_bo_reserve_locked(struct ttm_buffer_object *bo,
*
* Unreserve a previous reservation of @bo.
*/
extern void ttm_bo_unreserve(struct ttm_buffer_object *bo);
/**
* ttm_bo_unreserve_locked
*
* @bo: A pointer to a struct ttm_buffer_object.
*
* Unreserve a previous reservation of @bo.
* Needs to be called with struct ttm_bo_global::lru_lock held.
*/
extern void ttm_bo_unreserve_locked(struct ttm_buffer_object *bo);
/**
* ttm_bo_wait_unreserved
*
* @bo: A pointer to a struct ttm_buffer_object.
*
* Wait for a struct ttm_buffer_object to become unreserved.
* This is typically used in the execbuf code to relax cpu-usage when
* a potential deadlock condition backoff.
*/
extern int ttm_bo_wait_unreserved(struct ttm_buffer_object *bo,
bool interruptible);
static inline void ttm_bo_unreserve(struct ttm_buffer_object *bo)
{
ttm_bo_unreserve_ticket(bo, NULL);
}
/*
* ttm_bo_util.c
*/
int ttm_mem_io_reserve(struct ttm_bo_device *bdev,
struct ttm_mem_reg *mem);
void ttm_mem_io_free(struct ttm_bo_device *bdev,
struct ttm_mem_reg *mem);
/**
* ttm_bo_move_ttm
*

12
drivers/include/drm/ttm/ttm_execbuf_util.h
View File

@ -57,17 +57,20 @@ struct ttm_validate_buffer {
/**
* function ttm_eu_backoff_reservation
*
* @ticket: ww_acquire_ctx from reserve call
* @list: thread private list of ttm_validate_buffer structs.
*
* Undoes all buffer validation reservations for bos pointed to by
* the list entries.
*/
extern void ttm_eu_backoff_reservation(struct list_head *list);
extern void ttm_eu_backoff_reservation(struct ww_acquire_ctx *ticket,
struct list_head *list);
/**
* function ttm_eu_reserve_buffers
*
* @ticket: [out] ww_acquire_ctx returned by call.
* @list: thread private list of ttm_validate_buffer structs.
*
* Tries to reserve bos pointed to by the list entries for validation.
@ -90,11 +93,13 @@ extern void ttm_eu_backoff_reservation(struct list_head *list);
* has failed.
*/
extern int ttm_eu_reserve_buffers(struct list_head *list);
extern int ttm_eu_reserve_buffers(struct ww_acquire_ctx *ticket,
struct list_head *list);
/**
* function ttm_eu_fence_buffer_objects.
*
* @ticket: ww_acquire_ctx from reserve call
* @list: thread private list of ttm_validate_buffer structs.
* @sync_obj: The new sync object for the buffers.
*
@ -104,6 +109,7 @@ extern int ttm_eu_reserve_buffers(struct list_head *list);
*
*/
extern void ttm_eu_fence_buffer_objects(struct list_head *list, void *sync_obj);
extern void ttm_eu_fence_buffer_objects(struct ww_acquire_ctx *ticket,
struct list_head *list, void *sync_obj);
#endif

2
drivers/include/drm/ttm/ttm_object.h
View File

@ -40,7 +40,7 @@
#include <linux/list.h>
#include <drm/drm_hashtab.h>
#include <linux/kref.h>
#include <linux/rcupdate.h>
//#include <linux/rcupdate.h>
#include <ttm/ttm_memory.h>
/**

790
drivers/include/drm/vmwgfx_drm.h Normal file
View File

@ -0,0 +1,790 @@
/**************************************************************************
*
* Copyright © 2009 VMware, Inc., Palo Alto, CA., USA
* All Rights Reserved.
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the
* "Software"), to deal in the Software without restriction, including
* without limitation the rights to use, copy, modify, merge, publish,
* distribute, sub license, and/or sell copies of the Software, and to
* permit persons to whom the Software is furnished to do so, subject to
* the following conditions:
*
* The above copyright notice and this permission notice (including the
* next paragraph) shall be included in all copies or substantial portions
* of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL
* THE COPYRIGHT HOLDERS, AUTHORS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM,
* DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
* OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
* USE OR OTHER DEALINGS IN THE SOFTWARE.
*
**************************************************************************/
#ifndef __VMWGFX_DRM_H__
#define __VMWGFX_DRM_H__
#define DRM_VMW_MAX_SURFACE_FACES 6
#define DRM_VMW_MAX_MIP_LEVELS 24
#define DRM_VMW_GET_PARAM 0
#define DRM_VMW_ALLOC_DMABUF 1
#define DRM_VMW_UNREF_DMABUF 2
#define DRM_VMW_CURSOR_BYPASS 3
/* guarded by DRM_VMW_PARAM_NUM_STREAMS != 0*/
#define DRM_VMW_CONTROL_STREAM 4
#define DRM_VMW_CLAIM_STREAM 5
#define DRM_VMW_UNREF_STREAM 6
/* guarded by DRM_VMW_PARAM_3D == 1 */
#define DRM_VMW_CREATE_CONTEXT 7
#define DRM_VMW_UNREF_CONTEXT 8
#define DRM_VMW_CREATE_SURFACE 9
#define DRM_VMW_UNREF_SURFACE 10
#define DRM_VMW_REF_SURFACE 11
#define DRM_VMW_EXECBUF 12
#define DRM_VMW_GET_3D_CAP 13
#define DRM_VMW_FENCE_WAIT 14
#define DRM_VMW_FENCE_SIGNALED 15
#define DRM_VMW_FENCE_UNREF 16
#define DRM_VMW_FENCE_EVENT 17
#define DRM_VMW_PRESENT 18
#define DRM_VMW_PRESENT_READBACK 19
#define DRM_VMW_UPDATE_LAYOUT 20
/*************************************************************************/
/**
* DRM_VMW_GET_PARAM - get device information.
*
* DRM_VMW_PARAM_FIFO_OFFSET:
* Offset to use to map the first page of the FIFO read-only.
* The fifo is mapped using the mmap() system call on the drm device.
*
* DRM_VMW_PARAM_OVERLAY_IOCTL:
* Does the driver support the overlay ioctl.
*/
#define DRM_VMW_PARAM_NUM_STREAMS 0
#define DRM_VMW_PARAM_NUM_FREE_STREAMS 1
#define DRM_VMW_PARAM_3D 2
#define DRM_VMW_PARAM_HW_CAPS 3
#define DRM_VMW_PARAM_FIFO_CAPS 4
#define DRM_VMW_PARAM_MAX_FB_SIZE 5
#define DRM_VMW_PARAM_FIFO_HW_VERSION 6
/**
* struct drm_vmw_getparam_arg
*
* @value: Returned value. //Out
* @param: Parameter to query. //In.
*
* Argument to the DRM_VMW_GET_PARAM Ioctl.
*/
struct drm_vmw_getparam_arg {
uint64_t value;
uint32_t param;
uint32_t pad64;
};
/*************************************************************************/
/**
* DRM_VMW_CREATE_CONTEXT - Create a host context.
*
* Allocates a device unique context id, and queues a create context command
* for the host. Does not wait for host completion.
*/
/**
* struct drm_vmw_context_arg
*
* @cid: Device unique context ID.
*
* Output argument to the DRM_VMW_CREATE_CONTEXT Ioctl.
* Input argument to the DRM_VMW_UNREF_CONTEXT Ioctl.
*/
struct drm_vmw_context_arg {
int32_t cid;
uint32_t pad64;
};
/*************************************************************************/
/**
* DRM_VMW_UNREF_CONTEXT - Create a host context.
*
* Frees a global context id, and queues a destroy host command for the host.
* Does not wait for host completion. The context ID can be used directly
* in the command stream and shows up as the same context ID on the host.
*/
/*************************************************************************/
/**
* DRM_VMW_CREATE_SURFACE - Create a host suface.
*
* Allocates a device unique surface id, and queues a create surface command
* for the host. Does not wait for host completion. The surface ID can be
* used directly in the command stream and shows up as the same surface
* ID on the host.
*/
/**
* struct drm_wmv_surface_create_req
*
* @flags: Surface flags as understood by the host.
* @format: Surface format as understood by the host.
* @mip_levels: Number of mip levels for each face.
* An unused face should have 0 encoded.
* @size_addr: Address of a user-space array of sruct drm_vmw_size
* cast to an uint64_t for 32-64 bit compatibility.
* The size of the array should equal the total number of mipmap levels.
* @shareable: Boolean whether other clients (as identified by file descriptors)
* may reference this surface.
* @scanout: Boolean whether the surface is intended to be used as a
* scanout.
*
* Input data to the DRM_VMW_CREATE_SURFACE Ioctl.
* Output data from the DRM_VMW_REF_SURFACE Ioctl.
*/
struct drm_vmw_surface_create_req {
uint32_t flags;
uint32_t format;
uint32_t mip_levels[DRM_VMW_MAX_SURFACE_FACES];
uint64_t size_addr;
int32_t shareable;
int32_t scanout;
};
/**
* struct drm_wmv_surface_arg
*
* @sid: Surface id of created surface or surface to destroy or reference.
*
* Output data from the DRM_VMW_CREATE_SURFACE Ioctl.
* Input argument to the DRM_VMW_UNREF_SURFACE Ioctl.
* Input argument to the DRM_VMW_REF_SURFACE Ioctl.
*/
struct drm_vmw_surface_arg {
int32_t sid;
uint32_t pad64;
};
/**
* struct drm_vmw_size ioctl.
*
* @width - mip level width
* @height - mip level height
* @depth - mip level depth
*
* Description of a mip level.
* Input data to the DRM_WMW_CREATE_SURFACE Ioctl.
*/
struct drm_vmw_size {
uint32_t width;
uint32_t height;
uint32_t depth;
uint32_t pad64;
};
/**
* union drm_vmw_surface_create_arg
*
* @rep: Output data as described above.
* @req: Input data as described above.
*
* Argument to the DRM_VMW_CREATE_SURFACE Ioctl.
*/
union drm_vmw_surface_create_arg {
struct drm_vmw_surface_arg rep;
struct drm_vmw_surface_create_req req;
};
/*************************************************************************/
/**
* DRM_VMW_REF_SURFACE - Reference a host surface.
*
* Puts a reference on a host surface with a give sid, as previously
* returned by the DRM_VMW_CREATE_SURFACE ioctl.
* A reference will make sure the surface isn't destroyed while we hold
* it and will allow the calling client to use the surface ID in the command
* stream.
*
* On successful return, the Ioctl returns the surface information given
* in the DRM_VMW_CREATE_SURFACE ioctl.
*/
/**
* union drm_vmw_surface_reference_arg
*
* @rep: Output data as described above.
* @req: Input data as described above.
*
* Argument to the DRM_VMW_REF_SURFACE Ioctl.
*/
union drm_vmw_surface_reference_arg {
struct drm_vmw_surface_create_req rep;
struct drm_vmw_surface_arg req;
};
/*************************************************************************/
/**
* DRM_VMW_UNREF_SURFACE - Unreference a host surface.
*
* Clear a reference previously put on a host surface.
* When all references are gone, including the one implicitly placed
* on creation,
* a destroy surface command will be queued for the host.
* Does not wait for completion.
*/
/*************************************************************************/
/**
* DRM_VMW_EXECBUF
*
* Submit a command buffer for execution on the host, and return a
* fence seqno that when signaled, indicates that the command buffer has
* executed.
*/
/**
* struct drm_vmw_execbuf_arg
*
* @commands: User-space address of a command buffer cast to an uint64_t.
* @command-size: Size in bytes of the command buffer.
* @throttle-us: Sleep until software is less than @throttle_us
* microseconds ahead of hardware. The driver may round this value
* to the nearest kernel tick.
* @fence_rep: User-space address of a struct drm_vmw_fence_rep cast to an
* uint64_t.
* @version: Allows expanding the execbuf ioctl parameters without breaking
* backwards compatibility, since user-space will always tell the kernel
* which version it uses.
* @flags: Execbuf flags. None currently.
*
* Argument to the DRM_VMW_EXECBUF Ioctl.
*/
#define DRM_VMW_EXECBUF_VERSION 1
struct drm_vmw_execbuf_arg {
uint64_t commands;
uint32_t command_size;
uint32_t throttle_us;
uint64_t fence_rep;
uint32_t version;
uint32_t flags;
};
/**
* struct drm_vmw_fence_rep
*
* @handle: Fence object handle for fence associated with a command submission.
* @mask: Fence flags relevant for this fence object.
* @seqno: Fence sequence number in fifo. A fence object with a lower
* seqno will signal the EXEC flag before a fence object with a higher
* seqno. This can be used by user-space to avoid kernel calls to determine
* whether a fence has signaled the EXEC flag. Note that @seqno will
* wrap at 32-bit.
* @passed_seqno: The highest seqno number processed by the hardware
* so far. This can be used to mark user-space fence objects as signaled, and
* to determine whether a fence seqno might be stale.
* @error: This member should've been set to -EFAULT on submission.
* The following actions should be take on completion:
* error == -EFAULT: Fence communication failed. The host is synchronized.
* Use the last fence id read from the FIFO fence register.
* error != 0 && error != -EFAULT:
* Fence submission failed. The host is synchronized. Use the fence_seq member.
* error == 0: All is OK, The host may not be synchronized.
* Use the fence_seq member.
*
* Input / Output data to the DRM_VMW_EXECBUF Ioctl.
*/
struct drm_vmw_fence_rep {
uint32_t handle;
uint32_t mask;
uint32_t seqno;
uint32_t passed_seqno;
uint32_t pad64;
int32_t error;
};
/*************************************************************************/
/**
* DRM_VMW_ALLOC_DMABUF
*
* Allocate a DMA buffer that is visible also to the host.
* NOTE: The buffer is
* identified by a handle and an offset, which are private to the guest, but
* useable in the command stream. The guest kernel may translate these
* and patch up the command stream accordingly. In the future, the offset may
* be zero at all times, or it may disappear from the interface before it is
* fixed.
*
* The DMA buffer may stay user-space mapped in the guest at all times,
* and is thus suitable for sub-allocation.
*
* DMA buffers are mapped using the mmap() syscall on the drm device.
*/
/**
* struct drm_vmw_alloc_dmabuf_req
*
* @size: Required minimum size of the buffer.
*
* Input data to the DRM_VMW_ALLOC_DMABUF Ioctl.
*/
struct drm_vmw_alloc_dmabuf_req {
uint32_t size;
uint32_t pad64;
};
/**
* struct drm_vmw_dmabuf_rep
*
* @map_handle: Offset to use in the mmap() call used to map the buffer.
* @handle: Handle unique to this buffer. Used for unreferencing.
* @cur_gmr_id: GMR id to use in the command stream when this buffer is
* referenced. See not above.
* @cur_gmr_offset: Offset to use in the command stream when this buffer is
* referenced. See note above.
*
* Output data from the DRM_VMW_ALLOC_DMABUF Ioctl.
*/
struct drm_vmw_dmabuf_rep {
uint64_t map_handle;
uint32_t handle;
uint32_t cur_gmr_id;
uint32_t cur_gmr_offset;
uint32_t pad64;
};
/**
* union drm_vmw_dmabuf_arg
*
* @req: Input data as described above.
* @rep: Output data as described above.
*
* Argument to the DRM_VMW_ALLOC_DMABUF Ioctl.
*/
union drm_vmw_alloc_dmabuf_arg {
struct drm_vmw_alloc_dmabuf_req req;
struct drm_vmw_dmabuf_rep rep;
};
/*************************************************************************/
/**
* DRM_VMW_UNREF_DMABUF - Free a DMA buffer.
*
*/
/**
* struct drm_vmw_unref_dmabuf_arg
*
* @handle: Handle indicating what buffer to free. Obtained from the
* DRM_VMW_ALLOC_DMABUF Ioctl.
*
* Argument to the DRM_VMW_UNREF_DMABUF Ioctl.
*/
struct drm_vmw_unref_dmabuf_arg {
uint32_t handle;
uint32_t pad64;
};
/*************************************************************************/
/**
* DRM_VMW_CONTROL_STREAM - Control overlays, aka streams.
*
* This IOCTL controls the overlay units of the svga device.
* The SVGA overlay units does not work like regular hardware units in
* that they do not automaticaly read back the contents of the given dma
* buffer. But instead only read back for each call to this ioctl, and
* at any point between this call being made and a following call that
* either changes the buffer or disables the stream.
*/
/**
* struct drm_vmw_rect
*
* Defines a rectangle. Used in the overlay ioctl to define
* source and destination rectangle.
*/
struct drm_vmw_rect {
int32_t x;
int32_t y;
uint32_t w;
uint32_t h;
};
/**
* struct drm_vmw_control_stream_arg
*
* @stream_id: Stearm to control
* @enabled: If false all following arguments are ignored.
* @handle: Handle to buffer for getting data from.
* @format: Format of the overlay as understood by the host.
* @width: Width of the overlay.
* @height: Height of the overlay.
* @size: Size of the overlay in bytes.
* @pitch: Array of pitches, the two last are only used for YUV12 formats.
* @offset: Offset from start of dma buffer to overlay.
* @src: Source rect, must be within the defined area above.
* @dst: Destination rect, x and y may be negative.
*
* Argument to the DRM_VMW_CONTROL_STREAM Ioctl.
*/
struct drm_vmw_control_stream_arg {
uint32_t stream_id;
uint32_t enabled;
uint32_t flags;
uint32_t color_key;
uint32_t handle;
uint32_t offset;
int32_t format;
uint32_t size;
uint32_t width;
uint32_t height;
uint32_t pitch[3];
uint32_t pad64;
struct drm_vmw_rect src;
struct drm_vmw_rect dst;
};
/*************************************************************************/
/**
* DRM_VMW_CURSOR_BYPASS - Give extra information about cursor bypass.
*
*/
#define DRM_VMW_CURSOR_BYPASS_ALL (1 << 0)
#define DRM_VMW_CURSOR_BYPASS_FLAGS (1)
/**
* struct drm_vmw_cursor_bypass_arg
*
* @flags: Flags.
* @crtc_id: Crtc id, only used if DMR_CURSOR_BYPASS_ALL isn't passed.
* @xpos: X position of cursor.
* @ypos: Y position of cursor.
* @xhot: X hotspot.
* @yhot: Y hotspot.
*
* Argument to the DRM_VMW_CURSOR_BYPASS Ioctl.
*/
struct drm_vmw_cursor_bypass_arg {
uint32_t flags;
uint32_t crtc_id;
int32_t xpos;
int32_t ypos;
int32_t xhot;
int32_t yhot;
};
/*************************************************************************/
/**
* DRM_VMW_CLAIM_STREAM - Claim a single stream.
*/
/**
* struct drm_vmw_context_arg
*
* @stream_id: Device unique context ID.
*
* Output argument to the DRM_VMW_CREATE_CONTEXT Ioctl.
* Input argument to the DRM_VMW_UNREF_CONTEXT Ioctl.
*/
struct drm_vmw_stream_arg {
uint32_t stream_id;
uint32_t pad64;
};
/*************************************************************************/
/**
* DRM_VMW_UNREF_STREAM - Unclaim a stream.
*
* Return a single stream that was claimed by this process. Also makes
* sure that the stream has been stopped.
*/
/*************************************************************************/
/**
* DRM_VMW_GET_3D_CAP
*
* Read 3D capabilities from the FIFO
*
*/
/**
* struct drm_vmw_get_3d_cap_arg
*
* @buffer: Pointer to a buffer for capability data, cast to an uint64_t
* @size: Max size to copy
*
* Input argument to the DRM_VMW_GET_3D_CAP_IOCTL
* ioctls.
*/
struct drm_vmw_get_3d_cap_arg {
uint64_t buffer;
uint32_t max_size;
uint32_t pad64;
};
/*************************************************************************/
/**
* DRM_VMW_FENCE_WAIT
*
* Waits for a fence object to signal. The wait is interruptible, so that
* signals may be delivered during the interrupt. The wait may timeout,
* in which case the calls returns -EBUSY. If the wait is restarted,
* that is restarting without resetting @cookie_valid to zero,
* the timeout is computed from the first call.
*
* The flags argument to the DRM_VMW_FENCE_WAIT ioctl indicates what to wait
* on:
* DRM_VMW_FENCE_FLAG_EXEC: All commands ahead of the fence in the command
* stream
* have executed.
* DRM_VMW_FENCE_FLAG_QUERY: All query results resulting from query finish
* commands
* in the buffer given to the EXECBUF ioctl returning the fence object handle
* are available to user-space.
*
* DRM_VMW_WAIT_OPTION_UNREF: If this wait option is given, and the
* fenc wait ioctl returns 0, the fence object has been unreferenced after
* the wait.
*/
#define DRM_VMW_FENCE_FLAG_EXEC (1 << 0)
#define DRM_VMW_FENCE_FLAG_QUERY (1 << 1)
#define DRM_VMW_WAIT_OPTION_UNREF (1 << 0)
/**
* struct drm_vmw_fence_wait_arg
*
* @handle: Fence object handle as returned by the DRM_VMW_EXECBUF ioctl.
* @cookie_valid: Must be reset to 0 on first call. Left alone on restart.
* @kernel_cookie: Set to 0 on first call. Left alone on restart.
* @timeout_us: Wait timeout in microseconds. 0 for indefinite timeout.
* @lazy: Set to 1 if timing is not critical. Allow more than a kernel tick
* before returning.
* @flags: Fence flags to wait on.
* @wait_options: Options that control the behaviour of the wait ioctl.
*
* Input argument to the DRM_VMW_FENCE_WAIT ioctl.
*/
struct drm_vmw_fence_wait_arg {
uint32_t handle;
int32_t cookie_valid;
uint64_t kernel_cookie;
uint64_t timeout_us;
int32_t lazy;
int32_t flags;
int32_t wait_options;
int32_t pad64;
};
/*************************************************************************/
/**
* DRM_VMW_FENCE_SIGNALED
*
* Checks if a fence object is signaled..
*/
/**
* struct drm_vmw_fence_signaled_arg
*
* @handle: Fence object handle as returned by the DRM_VMW_EXECBUF ioctl.
* @flags: Fence object flags input to DRM_VMW_FENCE_SIGNALED ioctl
* @signaled: Out: Flags signaled.
* @sequence: Out: Highest sequence passed so far. Can be used to signal the
* EXEC flag of user-space fence objects.
*
* Input/Output argument to the DRM_VMW_FENCE_SIGNALED and DRM_VMW_FENCE_UNREF
* ioctls.
*/
struct drm_vmw_fence_signaled_arg {
uint32_t handle;
uint32_t flags;
int32_t signaled;
uint32_t passed_seqno;
uint32_t signaled_flags;
uint32_t pad64;
};
/*************************************************************************/
/**
* DRM_VMW_FENCE_UNREF
*
* Unreferences a fence object, and causes it to be destroyed if there are no
* other references to it.
*
*/
/**
* struct drm_vmw_fence_arg
*
* @handle: Fence object handle as returned by the DRM_VMW_EXECBUF ioctl.
*
* Input/Output argument to the DRM_VMW_FENCE_UNREF ioctl..
*/
struct drm_vmw_fence_arg {
uint32_t handle;
uint32_t pad64;
};
/*************************************************************************/
/**
* DRM_VMW_FENCE_EVENT
*
* Queues an event on a fence to be delivered on the drm character device
* when the fence has signaled the DRM_VMW_FENCE_FLAG_EXEC flag.
* Optionally the approximate time when the fence signaled is
* given by the event.
*/
/*
* The event type
*/
#define DRM_VMW_EVENT_FENCE_SIGNALED 0x80000000
struct drm_vmw_event_fence {
struct drm_event base;
uint64_t user_data;
uint32_t tv_sec;
uint32_t tv_usec;
};
/*
* Flags that may be given to the command.
*/
/* Request fence signaled time on the event. */
#define DRM_VMW_FE_FLAG_REQ_TIME (1 << 0)
/**
* struct drm_vmw_fence_event_arg
*
* @fence_rep: Pointer to fence_rep structure cast to uint64_t or 0 if
* the fence is not supposed to be referenced by user-space.
* @user_info: Info to be delivered with the event.
* @handle: Attach the event to this fence only.
* @flags: A set of flags as defined above.
*/
struct drm_vmw_fence_event_arg {
uint64_t fence_rep;
uint64_t user_data;
uint32_t handle;
uint32_t flags;
};
/*************************************************************************/
/**
* DRM_VMW_PRESENT
*
* Executes an SVGA present on a given fb for a given surface. The surface
* is placed on the framebuffer. Cliprects are given relative to the given
* point (the point disignated by dest_{x|y}).
*
*/
/**
* struct drm_vmw_present_arg
* @fb_id: framebuffer id to present / read back from.
* @sid: Surface id to present from.
* @dest_x: X placement coordinate for surface.
* @dest_y: Y placement coordinate for surface.
* @clips_ptr: Pointer to an array of clip rects cast to an uint64_t.
* @num_clips: Number of cliprects given relative to the framebuffer origin,
* in the same coordinate space as the frame buffer.
* @pad64: Unused 64-bit padding.
*
* Input argument to the DRM_VMW_PRESENT ioctl.
*/
struct drm_vmw_present_arg {
uint32_t fb_id;
uint32_t sid;
int32_t dest_x;
int32_t dest_y;
uint64_t clips_ptr;
uint32_t num_clips;
uint32_t pad64;
};
/*************************************************************************/
/**
* DRM_VMW_PRESENT_READBACK
*
* Executes an SVGA present readback from a given fb to the dma buffer
* currently bound as the fb. If there is no dma buffer bound to the fb,
* an error will be returned.
*
*/
/**
* struct drm_vmw_present_arg
* @fb_id: fb_id to present / read back from.
* @num_clips: Number of cliprects.
* @clips_ptr: Pointer to an array of clip rects cast to an uint64_t.
* @fence_rep: Pointer to a struct drm_vmw_fence_rep, cast to an uint64_t.
* If this member is NULL, then the ioctl should not return a fence.
*/
struct drm_vmw_present_readback_arg {
uint32_t fb_id;
uint32_t num_clips;
uint64_t clips_ptr;
uint64_t fence_rep;
};
/*************************************************************************/
/**
* DRM_VMW_UPDATE_LAYOUT - Update layout
*
* Updates the preferred modes and connection status for connectors. The
* command consists of one drm_vmw_update_layout_arg pointing to an array
* of num_outputs drm_vmw_rect's.
*/
/**
* struct drm_vmw_update_layout_arg
*
* @num_outputs: number of active connectors
* @rects: pointer to array of drm_vmw_rect cast to an uint64_t
*
* Input argument to the DRM_VMW_UPDATE_LAYOUT Ioctl.
*/
struct drm_vmw_update_layout_arg {
uint32_t num_outputs;
uint32_t pad64;
uint64_t rects;
};
#endif

2
drivers/include/linux/compiler-gcc4.h
View File

@ -13,7 +13,7 @@
#define __must_check __attribute__((warn_unused_result))
#define __compiler_offsetof(a,b) __builtin_offsetof(a,b)
#if GCC_VERSION >= 40100
#if GCC_VERSION >= 40100 && GCC_VERSION < 40600
# define __compiletime_object_size(obj) __builtin_object_size(obj, 0)
#endif

6
drivers/include/linux/ctype.h
View File

@ -61,4 +61,10 @@ static inline char _tolower(const char c)
return c | 0x20;
}
/* Fast check for octal digit */
static inline int isodigit(const char c)
{
return c >= '0' && c <= '7';
}
#endif

10
drivers/include/linux/err.h
View File

@ -24,17 +24,17 @@ static inline void * __must_check ERR_PTR(long error)
return (void *) error;
}
static inline long __must_check PTR_ERR(const void *ptr)
static inline long __must_check PTR_ERR(__force const void *ptr)
{
return (long) ptr;
}
static inline long __must_check IS_ERR(const void *ptr)
static inline long __must_check IS_ERR(__force const void *ptr)
{
return IS_ERR_VALUE((unsigned long)ptr);
}
static inline long __must_check IS_ERR_OR_NULL(const void *ptr)
static inline long __must_check IS_ERR_OR_NULL(__force const void *ptr)
{
return !ptr || IS_ERR_VALUE((unsigned long)ptr);
}
@ -46,13 +46,13 @@ static inline long __must_check IS_ERR_OR_NULL(const void *ptr)
* Explicitly cast an error-valued pointer to another pointer type in such a
* way as to make it clear that's what's going on.
*/
static inline void * __must_check ERR_CAST(const void *ptr)
static inline void * __must_check ERR_CAST(__force const void *ptr)
{
/* cast away the const */
return (void *) ptr;
}
static inline int __must_check PTR_RET(const void *ptr)
static inline int __must_check PTR_RET(__force const void *ptr)
{
if (IS_ERR(ptr))
return PTR_ERR(ptr);

81
drivers/include/linux/hash.h Normal file
View File

@ -0,0 +1,81 @@
#ifndef _LINUX_HASH_H
#define _LINUX_HASH_H
/* Fast hashing routine for ints, longs and pointers.
(C) 2002 Nadia Yvette Chambers, IBM */
/*
* Knuth recommends primes in approximately golden ratio to the maximum
* integer representable by a machine word for multiplicative hashing.
* Chuck Lever verified the effectiveness of this technique:
* http://www.citi.umich.edu/techreports/reports/citi-tr-00-1.pdf
*
* These primes are chosen to be bit-sparse, that is operations on
* them can use shifts and additions instead of multiplications for
* machines where multiplications are slow.
*/
#include <asm/types.h>
#include <linux/compiler.h>
/* 2^31 + 2^29 - 2^25 + 2^22 - 2^19 - 2^16 + 1 */
#define GOLDEN_RATIO_PRIME_32 0x9e370001UL
/* 2^63 + 2^61 - 2^57 + 2^54 - 2^51 - 2^18 + 1 */
#define GOLDEN_RATIO_PRIME_64 0x9e37fffffffc0001UL
#if BITS_PER_LONG == 32
#define GOLDEN_RATIO_PRIME GOLDEN_RATIO_PRIME_32
#define hash_long(val, bits) hash_32(val, bits)
#elif BITS_PER_LONG == 64
#define hash_long(val, bits) hash_64(val, bits)
#define GOLDEN_RATIO_PRIME GOLDEN_RATIO_PRIME_64
#else
#error Wordsize not 32 or 64
#endif
static __always_inline u64 hash_64(u64 val, unsigned int bits)
{
u64 hash = val;
/* Sigh, gcc can't optimise this alone like it does for 32 bits. */
u64 n = hash;
n <<= 18;
hash -= n;
n <<= 33;
hash -= n;
n <<= 3;
hash += n;
n <<= 3;
hash -= n;
n <<= 4;
hash += n;
n <<= 2;
hash += n;
/* High bits are more random, so use them. */
return hash >> (64 - bits);
}
static inline u32 hash_32(u32 val, unsigned int bits)
{
/* On some cpus multiply is faster, on others gcc will do shifts */
u32 hash = val * GOLDEN_RATIO_PRIME_32;
/* High bits are more random, so use them. */
return hash >> (32 - bits);
}
static inline unsigned long hash_ptr(const void *ptr, unsigned int bits)
{
return hash_long((unsigned long)ptr, bits);
}
static inline u32 hash32_ptr(const void *ptr)
{
unsigned long val = (unsigned long)ptr;
#if BITS_PER_LONG == 64
val ^= (val >> 32);
#endif
return (u32)val;
}
#endif /* _LINUX_HASH_H */

10
drivers/include/linux/i2c.h
View File

@ -55,7 +55,6 @@ extern int i2c_transfer(struct i2c_adapter *adap, struct i2c_msg *msgs,
* struct i2c_driver - represent an I2C device driver
* @class: What kind of i2c device we instantiate (for detect)
* @attach_adapter: Callback for bus addition (deprecated)
* @detach_adapter: Callback for bus removal (deprecated)
* @probe: Callback for device binding
* @remove: Callback for device unbinding
* @shutdown: Callback for device shutdown
@ -92,12 +91,10 @@ extern int i2c_transfer(struct i2c_adapter *adap, struct i2c_msg *msgs,
struct i2c_driver {
unsigned int class;
/* Notifies the driver that a new bus has appeared or is about to be
* removed. You should avoid using this, it will be removed in a
* near future.
/* Notifies the driver that a new bus has appeared. You should avoid
* using this, it will be removed in a near future.
*/
int (*attach_adapter)(struct i2c_adapter *) __deprecated;
int (*detach_adapter)(struct i2c_adapter *) __deprecated;
/* Standard driver model interfaces */
int (*probe)(struct i2c_client *, const struct i2c_device_id *);
@ -192,9 +189,6 @@ struct i2c_board_info {
unsigned short addr;
void *platform_data;
struct dev_archdata *archdata;
#ifdef CONFIG_OF
struct device_node *of_node;
#endif
int irq;
};

98
drivers/include/linux/idr.h
View File

@ -48,6 +48,7 @@ struct idr {
struct idr_layer *id_free;
int layers; /* only valid w/o concurrent changes */
int id_free_cnt;
int cur; /* current pos for cyclic allocation */
spinlock_t lock;
};
@ -79,10 +80,9 @@ struct idr {
*/
void *idr_find_slowpath(struct idr *idp, int id);
int idr_pre_get(struct idr *idp, gfp_t gfp_mask);
int idr_get_new_above(struct idr *idp, void *ptr, int starting_id, int *id);
void idr_preload(gfp_t gfp_mask);
int idr_alloc(struct idr *idp, void *ptr, int start, int end, gfp_t gfp_mask);
int idr_alloc_cyclic(struct idr *idr, void *ptr, int start, int end, gfp_t gfp_mask);
int idr_for_each(struct idr *idp,
int (*fn)(int id, void *p, void *data), void *data);
void *idr_get_next(struct idr *idp, int *nextid);
@ -105,7 +105,7 @@ static inline void idr_preload_end(void)
/**
* idr_find - return pointer for given id
* @idp: idr handle
* @idr: idr handle
* @id: lookup key
*
* Return the pointer given the id it has been registered with. A %NULL
@ -125,31 +125,69 @@ static inline void *idr_find(struct idr *idr, int id)
return idr_find_slowpath(idr, id);
}
/**
* idr_get_new - allocate new idr entry
* @idp: idr handle
* @ptr: pointer you want associated with the id
* @id: pointer to the allocated handle
*
* Simple wrapper around idr_get_new_above() w/ @starting_id of zero.
*/
static inline int idr_get_new(struct idr *idp, void *ptr, int *id)
{
return idr_get_new_above(idp, ptr, 0, id);
}
/**
* idr_for_each_entry - iterate over an idr's elements of a given type
* @idp: idr handle
* @entry: the type * to use as cursor
* @id: id entry's key
*
* @entry and @id do not need to be initialized before the loop, and
* after normal terminatinon @entry is left with the value NULL. This
* is convenient for a "not found" value.
*/
#define idr_for_each_entry(idp, entry, id) \
for (id = 0, entry = (typeof(entry))idr_get_next((idp), &(id)); \
entry != NULL; \
++id, entry = (typeof(entry))idr_get_next((idp), &(id)))
#define idr_for_each_entry(idp, entry, id) \
for (id = 0; ((entry) = idr_get_next(idp, &(id))) != NULL; ++id)
void __idr_remove_all(struct idr *idp); /* don't use */
/*
* Don't use the following functions. These exist only to suppress
* deprecated warnings on EXPORT_SYMBOL()s.
*/
int __idr_pre_get(struct idr *idp, gfp_t gfp_mask);
int __idr_get_new_above(struct idr *idp, void *ptr, int starting_id, int *id);
void __idr_remove_all(struct idr *idp);
/**
* idr_pre_get - reserve resources for idr allocation
* @idp: idr handle
* @gfp_mask: memory allocation flags
*
* Part of old alloc interface. This is going away. Use
* idr_preload[_end]() and idr_alloc() instead.
*/
static inline int __deprecated idr_pre_get(struct idr *idp, gfp_t gfp_mask)
{
return __idr_pre_get(idp, gfp_mask);
}
/**
* idr_get_new_above - allocate new idr entry above or equal to a start id
* @idp: idr handle
* @ptr: pointer you want associated with the id
* @starting_id: id to start search at
* @id: pointer to the allocated handle
*
* Part of old alloc interface. This is going away. Use
* idr_preload[_end]() and idr_alloc() instead.
*/
static inline int __deprecated idr_get_new_above(struct idr *idp, void *ptr,
int starting_id, int *id)
{
return __idr_get_new_above(idp, ptr, starting_id, id);
}
/**
* idr_get_new - allocate new idr entry
* @idp: idr handle
* @ptr: pointer you want associated with the id
* @id: pointer to the allocated handle
*
* Part of old alloc interface. This is going away. Use
* idr_preload[_end]() and idr_alloc() instead.
*/
static inline int __deprecated idr_get_new(struct idr *idp, void *ptr, int *id)
{
return __idr_get_new_above(idp, ptr, 0, id);
}
/**
* idr_remove_all - remove all ids from the given idr tree
@ -193,8 +231,22 @@ void ida_remove(struct ida *ida, int id);
void ida_destroy(struct ida *ida);
void ida_init(struct ida *ida);
int ida_simple_get(struct ida *ida, unsigned int start, unsigned int end,
gfp_t gfp_mask);
void ida_simple_remove(struct ida *ida, unsigned int id);
/**
* ida_get_new - allocate new ID
* @ida: idr handle
* @p_id: pointer to the allocated handle
*
* Simple wrapper around ida_get_new_above() w/ @starting_id of zero.
*/
static inline int ida_get_new(struct ida *ida, int *p_id)
{
return ida_get_new_above(ida, 0, p_id);
}
void __init idr_init_cache(void);
#endif /* __IDR_H__ */

4
drivers/include/linux/jiffies.h
View File

@ -130,6 +130,10 @@ static inline u64 get_jiffies_64(void)
((__s64)(a) - (__s64)(b) >= 0))
#define time_before_eq64(a,b) time_after_eq64(b,a)
#define time_in_range64(a, b, c) \
(time_after_eq64(a, b) && \
time_before_eq64(a, c))
/*
* These four macros compare jiffies and 'a' for convenience.
*/

73
drivers/include/linux/list.h
View File

@ -360,6 +360,17 @@ static inline void list_splice_tail_init(struct list_head *list,
#define list_first_entry(ptr, type, member) \
list_entry((ptr)->next, type, member)
/**
* list_first_entry_or_null - get the first element from a list
* @ptr: the list head to take the element from.
* @type: the type of the struct this is embedded in.
* @member: the name of the list_struct within the struct.
*
* Note that if the list is empty, it returns NULL.
*/
#define list_first_entry_or_null(ptr, type, member) \
(!list_empty(ptr) ? list_first_entry(ptr, type, member) : NULL)
/**
* list_for_each - iterate over a list
* @pos: the &struct list_head to use as a loop cursor.
@ -368,17 +379,6 @@ static inline void list_splice_tail_init(struct list_head *list,
#define list_for_each(pos, head) \
for (pos = (head)->next; pos != (head); pos = pos->next)
/**
* __list_for_each - iterate over a list
* @pos: the &struct list_head to use as a loop cursor.
* @head: the head for your list.
*
* This variant doesn't differ from list_for_each() any more.
* We don't do prefetching in either case.
*/
#define __list_for_each(pos, head) \
for (pos = (head)->next; pos != (head); pos = pos->next)
/**
* list_for_each_prev - iterate over a list backwards
* @pos: the &struct list_head to use as a loop cursor.
@ -665,54 +665,51 @@ static inline void hlist_move_list(struct hlist_head *old,
for (pos = (head)->first; pos && ({ n = pos->next; 1; }); \
pos = n)
#define hlist_entry_safe(ptr, type, member) \
({ typeof(ptr) ____ptr = (ptr); \
____ptr ? hlist_entry(____ptr, type, member) : NULL; \
})
/**
* hlist_for_each_entry - iterate over list of given type
* @tpos: the type * to use as a loop cursor.
* @pos: the &struct hlist_node to use as a loop cursor.
* @pos: the type * to use as a loop cursor.
* @head: the head for your list.
* @member: the name of the hlist_node within the struct.
*/
#define hlist_for_each_entry(tpos, pos, head, member) \
for (pos = (head)->first; \
pos && \
({ tpos = hlist_entry(pos, typeof(*tpos), member); 1;}); \
pos = pos->next)
#define hlist_for_each_entry(pos, head, member) \
for (pos = hlist_entry_safe((head)->first, typeof(*(pos)), member);\
pos; \
pos = hlist_entry_safe((pos)->member.next, typeof(*(pos)), member))
/**
* hlist_for_each_entry_continue - iterate over a hlist continuing after current point
* @tpos: the type * to use as a loop cursor.
* @pos: the &struct hlist_node to use as a loop cursor.
* @pos: the type * to use as a loop cursor.
* @member: the name of the hlist_node within the struct.
*/
#define hlist_for_each_entry_continue(tpos, pos, member) \
for (pos = (pos)->next; \
pos && \
({ tpos = hlist_entry(pos, typeof(*tpos), member); 1;}); \
pos = pos->next)
#define hlist_for_each_entry_continue(pos, member) \
for (pos = hlist_entry_safe((pos)->member.next, typeof(*(pos)), member);\
pos; \
pos = hlist_entry_safe((pos)->member.next, typeof(*(pos)), member))
/**
* hlist_for_each_entry_from - iterate over a hlist continuing from current point
* @tpos: the type * to use as a loop cursor.
* @pos: the &struct hlist_node to use as a loop cursor.
* @pos: the type * to use as a loop cursor.
* @member: the name of the hlist_node within the struct.
*/
#define hlist_for_each_entry_from(tpos, pos, member) \
for (; pos && \
({ tpos = hlist_entry(pos, typeof(*tpos), member); 1;}); \
pos = pos->next)
#define hlist_for_each_entry_from(pos, member) \
for (; pos; \
pos = hlist_entry_safe((pos)->member.next, typeof(*(pos)), member))
/**
* hlist_for_each_entry_safe - iterate over list of given type safe against removal of list entry
* @tpos: the type * to use as a loop cursor.
* @pos: the &struct hlist_node to use as a loop cursor.
* @pos: the type * to use as a loop cursor.
* @n: another &struct hlist_node to use as temporary storage
* @head: the head for your list.
* @member: the name of the hlist_node within the struct.
*/
#define hlist_for_each_entry_safe(tpos, pos, n, head, member) \
for (pos = (head)->first; \
pos && ({ n = pos->next; 1; }) && \
({ tpos = hlist_entry(pos, typeof(*tpos), member); 1;}); \
pos = n)
#define hlist_for_each_entry_safe(pos, n, head, member) \
for (pos = hlist_entry_safe((head)->first, typeof(*pos), member);\
pos && ({ n = pos->member.next; 1; }); \
pos = hlist_entry_safe(n, typeof(*pos), member))
#endif

2
drivers/include/linux/math64.h
View File

@ -7,6 +7,7 @@
#if BITS_PER_LONG == 64
#define div64_long(x,y) div64_s64((x),(y))
#define div64_ul(x, y) div64_u64((x), (y))
/**
* div_u64_rem - unsigned 64bit divide with 32bit divisor with remainder
@ -48,6 +49,7 @@ static inline s64 div64_s64(s64 dividend, s64 divisor)
#elif BITS_PER_LONG == 32
#define div64_long(x,y) div_s64((x),(y))
#define div64_ul(x, y) div_u64((x), (y))
#ifndef div_u64_rem
static inline u64 div_u64_rem(u64 dividend, u32 divisor, u32 *remainder)

149
drivers/include/linux/mod_devicetable.h
View File

@ -33,8 +33,7 @@ struct ieee1394_device_id {
__u32 model_id;
__u32 specifier_id;
__u32 version;
kernel_ulong_t driver_data
__attribute__((aligned(sizeof(kernel_ulong_t))));
kernel_ulong_t driver_data;
};
@ -147,8 +146,7 @@ struct hid_device_id {
__u16 group;
__u32 vendor;
__u32 product;
kernel_ulong_t driver_data
__attribute__((aligned(sizeof(kernel_ulong_t))));
kernel_ulong_t driver_data;
};
/* s390 CCW devices */
@ -172,8 +170,6 @@ struct ccw_device_id {
struct ap_device_id {
__u16 match_flags; /* which fields to match against */
__u8 dev_type; /* device type */
__u8 pad1;
__u32 pad2;
kernel_ulong_t driver_info;
};
@ -183,13 +179,10 @@ struct ap_device_id {
struct css_device_id {
__u8 match_flags;
__u8 type; /* subchannel type */
__u16 pad2;
__u32 pad3;
kernel_ulong_t driver_data;
};
#define ACPI_ID_LEN 16 /* only 9 bytes needed here, 16 bytes are used */
/* to workaround crosscompile issues */
#define ACPI_ID_LEN 9
struct acpi_device_id {
__u8 id[ACPI_ID_LEN];
@ -230,11 +223,7 @@ struct of_device_id
char name[32];
char type[32];
char compatible[128];
#ifdef __KERNEL__
const void *data;
#else
kernel_ulong_t data;
#endif
};
/* VIO */
@ -259,24 +248,14 @@ struct pcmcia_device_id {
/* for pseudo multi-function devices */
__u8 device_no;
__u32 prod_id_hash[4]
__attribute__((aligned(sizeof(__u32))));
__u32 prod_id_hash[4];
/* not matched against in kernelspace*/
#ifdef __KERNEL__
const char * prod_id[4];
#else
kernel_ulong_t prod_id[4]
__attribute__((aligned(sizeof(kernel_ulong_t))));
#endif
/* not matched against */
kernel_ulong_t driver_info;
#ifdef __KERNEL__
char * cisfile;
#else
kernel_ulong_t cisfile;
#endif
};
#define PCMCIA_DEV_ID_MATCH_MANF_ID 0x0001
@ -372,8 +351,7 @@ struct sdio_device_id {
__u8 class; /* Standard interface or SDIO_ANY_ID */
__u16 vendor; /* Vendor or SDIO_ANY_ID */
__u16 device; /* Device ID or SDIO_ANY_ID */
kernel_ulong_t driver_data /* Data private to the driver */
__attribute__((aligned(sizeof(kernel_ulong_t))));
kernel_ulong_t driver_data; /* Data private to the driver */
};
/* SSB core, see drivers/ssb/ */
@ -381,7 +359,8 @@ struct ssb_device_id {
__u16 vendor;
__u16 coreid;
__u8 revision;
};
__u8 __pad;
} __attribute__((packed, aligned(2)));
#define SSB_DEVICE(_vendor, _coreid, _revision) \
{ .vendor = _vendor, .coreid = _coreid, .revision = _revision, }
#define SSB_DEVTABLE_END \
@ -397,7 +376,7 @@ struct bcma_device_id {
__u16 id;
__u8 rev;
__u8 class;
};
} __attribute__((packed,aligned(2)));
#define BCMA_CORE(_manuf, _id, _rev, _class) \
{ .manuf = _manuf, .id = _id, .rev = _rev, .class = _class, }
#define BCMA_CORETABLE_END \
@ -414,6 +393,23 @@ struct virtio_device_id {
};
#define VIRTIO_DEV_ANY_ID 0xffffffff
/*
* For Hyper-V devices we use the device guid as the id.
*/
struct hv_vmbus_device_id {
__u8 guid[16];
kernel_ulong_t driver_data; /* Data private to the driver */
};
/* rpmsg */
#define RPMSG_NAME_SIZE 32
#define RPMSG_DEVICE_MODALIAS_FMT "rpmsg:%s"
struct rpmsg_device_id {
char name[RPMSG_NAME_SIZE];
};
/* i2c */
#define I2C_NAME_SIZE 20
@ -421,8 +417,7 @@ struct virtio_device_id {
struct i2c_device_id {
char name[I2C_NAME_SIZE];
kernel_ulong_t driver_data /* Data private to the driver */
__attribute__((aligned(sizeof(kernel_ulong_t))));
kernel_ulong_t driver_data; /* Data private to the driver */
};
/* spi */
@ -432,8 +427,7 @@ struct i2c_device_id {
struct spi_device_id {
char name[SPI_NAME_SIZE];
kernel_ulong_t driver_data /* Data private to the driver */
__attribute__((aligned(sizeof(kernel_ulong_t))));
kernel_ulong_t driver_data; /* Data private to the driver */
};
/* dmi */
@ -461,19 +455,11 @@ enum dmi_field {
};
struct dmi_strmatch {
unsigned char slot;
unsigned char slot:7;
unsigned char exact_match:1;
char substr[79];
};
#ifndef __KERNEL__
struct dmi_system_id {
kernel_ulong_t callback;
kernel_ulong_t ident;
struct dmi_strmatch matches[4];
kernel_ulong_t driver_data
__attribute__((aligned(sizeof(kernel_ulong_t))));
};
#else
struct dmi_system_id {
int (*callback)(const struct dmi_system_id *);
const char *ident;
@ -487,17 +473,16 @@ struct dmi_system_id {
* error: storage size of '__mod_dmi_device_table' isn't known
*/
#define dmi_device_id dmi_system_id
#endif
#define DMI_MATCH(a, b) { a, b }
#define DMI_MATCH(a, b) { .slot = a, .substr = b }
#define DMI_EXACT_MATCH(a, b) { .slot = a, .substr = b, .exact_match = 1 }
#define PLATFORM_NAME_SIZE 20
#define PLATFORM_MODULE_PREFIX "platform:"
struct platform_device_id {
char name[PLATFORM_NAME_SIZE];
kernel_ulong_t driver_data
__attribute__((aligned(sizeof(kernel_ulong_t))));
kernel_ulong_t driver_data;
};
#define MDIO_MODULE_PREFIX "mdio:"
@ -542,4 +527,74 @@ struct isapnp_device_id {
kernel_ulong_t driver_data; /* data private to the driver */
};
/**
* struct amba_id - identifies a device on an AMBA bus
* @id: The significant bits if the hardware device ID
* @mask: Bitmask specifying which bits of the id field are significant when
* matching. A driver binds to a device when ((hardware device ID) & mask)
* == id.
* @data: Private data used by the driver.
*/
struct amba_id {
unsigned int id;
unsigned int mask;
void *data;
};
/*
* Match x86 CPUs for CPU specific drivers.
* See documentation of "x86_match_cpu" for details.
*/
struct x86_cpu_id {
__u16 vendor;
__u16 family;
__u16 model;
__u16 feature; /* bit index */
kernel_ulong_t driver_data;
};
#define X86_FEATURE_MATCH(x) \
{ X86_VENDOR_ANY, X86_FAMILY_ANY, X86_MODEL_ANY, x }
#define X86_VENDOR_ANY 0xffff
#define X86_FAMILY_ANY 0
#define X86_MODEL_ANY 0
#define X86_FEATURE_ANY 0 /* Same as FPU, you can't test for that */
#define IPACK_ANY_FORMAT 0xff
#define IPACK_ANY_ID (~0)
struct ipack_device_id {
__u8 format; /* Format version or IPACK_ANY_ID */
__u32 vendor; /* Vendor ID or IPACK_ANY_ID */
__u32 device; /* Device ID or IPACK_ANY_ID */
};
#define MEI_CL_MODULE_PREFIX "mei:"
#define MEI_CL_NAME_SIZE 32
struct mei_cl_device_id {
char name[MEI_CL_NAME_SIZE];
kernel_ulong_t driver_info;
};
/* RapidIO */
#define RIO_ANY_ID 0xffff
/**
* struct rio_device_id - RIO device identifier
* @did: RapidIO device ID
* @vid: RapidIO vendor ID
* @asm_did: RapidIO assembly device ID
* @asm_vid: RapidIO assembly vendor ID
*
* Identifies a RapidIO device based on both the device/vendor IDs and
* the assembly device/vendor IDs.
*/
struct rio_device_id {
__u16 did, vid;
__u16 asm_did, asm_vid;
};
#endif /* LINUX_MOD_DEVICETABLE_H */

526
drivers/include/linux/rculist.h Normal file
View File

@ -0,0 +1,526 @@
#ifndef _LINUX_RCULIST_H
#define _LINUX_RCULIST_H
#ifdef __KERNEL__
/*
* RCU-protected list version
*/
#include <linux/list.h>
//#include <linux/rcupdate.h>
/*
* Why is there no list_empty_rcu()? Because list_empty() serves this
* purpose. The list_empty() function fetches the RCU-protected pointer
* and compares it to the address of the list head, but neither dereferences
* this pointer itself nor provides this pointer to the caller. Therefore,
* it is not necessary to use rcu_dereference(), so that list_empty() can
* be used anywhere you would want to use a list_empty_rcu().
*/
/*
* return the ->next pointer of a list_head in an rcu safe
* way, we must not access it directly
*/
#define list_next_rcu(list) (*((struct list_head __rcu **)(&(list)->next)))
/*
* Insert a new entry between two known consecutive entries.
*
* This is only for internal list manipulation where we know
* the prev/next entries already!
*/
#ifndef CONFIG_DEBUG_LIST
static inline void __list_add_rcu(struct list_head *new,
struct list_head *prev, struct list_head *next)
{
new->next = next;
new->prev = prev;
rcu_assign_pointer(list_next_rcu(prev), new);
next->prev = new;
}
#else
extern void __list_add_rcu(struct list_head *new,
struct list_head *prev, struct list_head *next);
#endif
/**
* list_add_rcu - add a new entry to rcu-protected list
* @new: new entry to be added
* @head: list head to add it after
*
* Insert a new entry after the specified head.
* This is good for implementing stacks.
*
* The caller must take whatever precautions are necessary
* (such as holding appropriate locks) to avoid racing
* with another list-mutation primitive, such as list_add_rcu()
* or list_del_rcu(), running on this same list.
* However, it is perfectly legal to run concurrently with
* the _rcu list-traversal primitives, such as
* list_for_each_entry_rcu().
*/
static inline void list_add_rcu(struct list_head *new, struct list_head *head)
{
__list_add_rcu(new, head, head->next);
}
/**
* list_add_tail_rcu - add a new entry to rcu-protected list
* @new: new entry to be added
* @head: list head to add it before
*
* Insert a new entry before the specified head.
* This is useful for implementing queues.
*
* The caller must take whatever precautions are necessary
* (such as holding appropriate locks) to avoid racing
* with another list-mutation primitive, such as list_add_tail_rcu()
* or list_del_rcu(), running on this same list.
* However, it is perfectly legal to run concurrently with
* the _rcu list-traversal primitives, such as
* list_for_each_entry_rcu().
*/
static inline void list_add_tail_rcu(struct list_head *new,
struct list_head *head)
{
__list_add_rcu(new, head->prev, head);
}
/**
* list_del_rcu - deletes entry from list without re-initialization
* @entry: the element to delete from the list.
*
* Note: list_empty() on entry does not return true after this,
* the entry is in an undefined state. It is useful for RCU based
* lockfree traversal.
*
* In particular, it means that we can not poison the forward
* pointers that may still be used for walking the list.
*
* The caller must take whatever precautions are necessary
* (such as holding appropriate locks) to avoid racing
* with another list-mutation primitive, such as list_del_rcu()
* or list_add_rcu(), running on this same list.
* However, it is perfectly legal to run concurrently with
* the _rcu list-traversal primitives, such as
* list_for_each_entry_rcu().
*
* Note that the caller is not permitted to immediately free
* the newly deleted entry. Instead, either synchronize_rcu()
* or call_rcu() must be used to defer freeing until an RCU
* grace period has elapsed.
*/
static inline void list_del_rcu(struct list_head *entry)
{
__list_del_entry(entry);
entry->prev = LIST_POISON2;
}
/**
* hlist_del_init_rcu - deletes entry from hash list with re-initialization
* @n: the element to delete from the hash list.
*
* Note: list_unhashed() on the node return true after this. It is
* useful for RCU based read lockfree traversal if the writer side
* must know if the list entry is still hashed or already unhashed.
*
* In particular, it means that we can not poison the forward pointers
* that may still be used for walking the hash list and we can only
* zero the pprev pointer so list_unhashed() will return true after
* this.
*
* The caller must take whatever precautions are necessary (such as
* holding appropriate locks) to avoid racing with another
* list-mutation primitive, such as hlist_add_head_rcu() or
* hlist_del_rcu(), running on this same list. However, it is
* perfectly legal to run concurrently with the _rcu list-traversal
* primitives, such as hlist_for_each_entry_rcu().
*/
static inline void hlist_del_init_rcu(struct hlist_node *n)
{
if (!hlist_unhashed(n)) {
__hlist_del(n);
n->pprev = NULL;
}
}
/**
* list_replace_rcu - replace old entry by new one
* @old : the element to be replaced
* @new : the new element to insert
*
* The @old entry will be replaced with the @new entry atomically.
* Note: @old should not be empty.
*/
static inline void list_replace_rcu(struct list_head *old,
struct list_head *new)
{
new->next = old->next;
new->prev = old->prev;
rcu_assign_pointer(list_next_rcu(new->prev), new);
new->next->prev = new;
old->prev = LIST_POISON2;
}
/**
* list_splice_init_rcu - splice an RCU-protected list into an existing list.
* @list: the RCU-protected list to splice
* @head: the place in the list to splice the first list into
* @sync: function to sync: synchronize_rcu(), synchronize_sched(), ...
*
* @head can be RCU-read traversed concurrently with this function.
*
* Note that this function blocks.
*
* Important note: the caller must take whatever action is necessary to
* prevent any other updates to @head. In principle, it is possible
* to modify the list as soon as sync() begins execution.
* If this sort of thing becomes necessary, an alternative version
* based on call_rcu() could be created. But only if -really-
* needed -- there is no shortage of RCU API members.
*/
static inline void list_splice_init_rcu(struct list_head *list,
struct list_head *head,
void (*sync)(void))
{
struct list_head *first = list->next;
struct list_head *last = list->prev;
struct list_head *at = head->next;
if (list_empty(list))
return;
/* "first" and "last" tracking list, so initialize it. */
INIT_LIST_HEAD(list);
/*
* At this point, the list body still points to the source list.
* Wait for any readers to finish using the list before splicing
* the list body into the new list. Any new readers will see
* an empty list.
*/
sync();
/*
* Readers are finished with the source list, so perform splice.
* The order is important if the new list is global and accessible
* to concurrent RCU readers. Note that RCU readers are not
* permitted to traverse the prev pointers without excluding
* this function.
*/
last->next = at;
rcu_assign_pointer(list_next_rcu(head), first);
first->prev = head;
at->prev = last;
}
/**
* list_entry_rcu - get the struct for this entry
* @ptr: the &struct list_head pointer.
* @type: the type of the struct this is embedded in.
* @member: the name of the list_struct within the struct.
*
* This primitive may safely run concurrently with the _rcu list-mutation
* primitives such as list_add_rcu() as long as it's guarded by rcu_read_lock().
*/
#define list_entry_rcu(ptr, type, member) \
({typeof (*ptr) __rcu *__ptr = (typeof (*ptr) __rcu __force *)ptr; \
container_of((typeof(ptr))rcu_dereference_raw(__ptr), type, member); \
})
/**
* Where are list_empty_rcu() and list_first_entry_rcu()?
*
* Implementing those functions following their counterparts list_empty() and
* list_first_entry() is not advisable because they lead to subtle race
* conditions as the following snippet shows:
*
* if (!list_empty_rcu(mylist)) {
* struct foo *bar = list_first_entry_rcu(mylist, struct foo, list_member);
* do_something(bar);
* }
*
* The list may not be empty when list_empty_rcu checks it, but it may be when
* list_first_entry_rcu rereads the ->next pointer.
*
* Rereading the ->next pointer is not a problem for list_empty() and
* list_first_entry() because they would be protected by a lock that blocks
* writers.
*
* See list_first_or_null_rcu for an alternative.
*/
/**
* list_first_or_null_rcu - get the first element from a list
* @ptr: the list head to take the element from.
* @type: the type of the struct this is embedded in.
* @member: the name of the list_struct within the struct.
*
* Note that if the list is empty, it returns NULL.
*
* This primitive may safely run concurrently with the _rcu list-mutation
* primitives such as list_add_rcu() as long as it's guarded by rcu_read_lock().
*/
#define list_first_or_null_rcu(ptr, type, member) \
({struct list_head *__ptr = (ptr); \
struct list_head __rcu *__next = list_next_rcu(__ptr); \
likely(__ptr != __next) ? container_of(__next, type, member) : NULL; \
})
/**
* list_for_each_entry_rcu - iterate over rcu list of given type
* @pos: the type * to use as a loop cursor.
* @head: the head for your list.
* @member: the name of the list_struct within the struct.
*
* This list-traversal primitive may safely run concurrently with
* the _rcu list-mutation primitives such as list_add_rcu()
* as long as the traversal is guarded by rcu_read_lock().
*/
#define list_for_each_entry_rcu(pos, head, member) \
for (pos = list_entry_rcu((head)->next, typeof(*pos), member); \
&pos->member != (head); \
pos = list_entry_rcu(pos->member.next, typeof(*pos), member))
/**
* list_for_each_entry_continue_rcu - continue iteration over list of given type
* @pos: the type * to use as a loop cursor.
* @head: the head for your list.
* @member: the name of the list_struct within the struct.
*
* Continue to iterate over list of given type, continuing after
* the current position.
*/
#define list_for_each_entry_continue_rcu(pos, head, member) \
for (pos = list_entry_rcu(pos->member.next, typeof(*pos), member); \
&pos->member != (head); \
pos = list_entry_rcu(pos->member.next, typeof(*pos), member))
/**
* hlist_del_rcu - deletes entry from hash list without re-initialization
* @n: the element to delete from the hash list.
*
* Note: list_unhashed() on entry does not return true after this,
* the entry is in an undefined state. It is useful for RCU based
* lockfree traversal.
*
* In particular, it means that we can not poison the forward
* pointers that may still be used for walking the hash list.
*
* The caller must take whatever precautions are necessary
* (such as holding appropriate locks) to avoid racing
* with another list-mutation primitive, such as hlist_add_head_rcu()
* or hlist_del_rcu(), running on this same list.
* However, it is perfectly legal to run concurrently with
* the _rcu list-traversal primitives, such as
* hlist_for_each_entry().
*/
static inline void hlist_del_rcu(struct hlist_node *n)
{
__hlist_del(n);
n->pprev = LIST_POISON2;
}
/**
* hlist_replace_rcu - replace old entry by new one
* @old : the element to be replaced
* @new : the new element to insert
*
* The @old entry will be replaced with the @new entry atomically.
*/
static inline void hlist_replace_rcu(struct hlist_node *old,
struct hlist_node *new)
{
struct hlist_node *next = old->next;
new->next = next;
new->pprev = old->pprev;
rcu_assign_pointer(*(struct hlist_node __rcu **)new->pprev, new);
if (next)
new->next->pprev = &new->next;
old->pprev = LIST_POISON2;
}
/*
* return the first or the next element in an RCU protected hlist
*/
#define hlist_first_rcu(head) (*((struct hlist_node __rcu **)(&(head)->first)))
#define hlist_next_rcu(node) (*((struct hlist_node __rcu **)(&(node)->next)))
#define hlist_pprev_rcu(node) (*((struct hlist_node __rcu **)((node)->pprev)))
/**
* hlist_add_head_rcu
* @n: the element to add to the hash list.
* @h: the list to add to.
*
* Description:
* Adds the specified element to the specified hlist,
* while permitting racing traversals.
*
* The caller must take whatever precautions are necessary
* (such as holding appropriate locks) to avoid racing
* with another list-mutation primitive, such as hlist_add_head_rcu()
* or hlist_del_rcu(), running on this same list.
* However, it is perfectly legal to run concurrently with
* the _rcu list-traversal primitives, such as
* hlist_for_each_entry_rcu(), used to prevent memory-consistency
* problems on Alpha CPUs. Regardless of the type of CPU, the
* list-traversal primitive must be guarded by rcu_read_lock().
*/
static inline void hlist_add_head_rcu(struct hlist_node *n,
struct hlist_head *h)
{
struct hlist_node *first = h->first;
n->next = first;
n->pprev = &h->first;
rcu_assign_pointer(hlist_first_rcu(h), n);
if (first)
first->pprev = &n->next;
}
/**
* hlist_add_before_rcu
* @n: the new element to add to the hash list.
* @next: the existing element to add the new element before.
*
* Description:
* Adds the specified element to the specified hlist
* before the specified node while permitting racing traversals.
*
* The caller must take whatever precautions are necessary
* (such as holding appropriate locks) to avoid racing
* with another list-mutation primitive, such as hlist_add_head_rcu()
* or hlist_del_rcu(), running on this same list.
* However, it is perfectly legal to run concurrently with
* the _rcu list-traversal primitives, such as
* hlist_for_each_entry_rcu(), used to prevent memory-consistency
* problems on Alpha CPUs.
*/
static inline void hlist_add_before_rcu(struct hlist_node *n,
struct hlist_node *next)
{
n->pprev = next->pprev;
n->next = next;
rcu_assign_pointer(hlist_pprev_rcu(n), n);
next->pprev = &n->next;
}
/**
* hlist_add_after_rcu
* @prev: the existing element to add the new element after.
* @n: the new element to add to the hash list.
*
* Description:
* Adds the specified element to the specified hlist
* after the specified node while permitting racing traversals.
*
* The caller must take whatever precautions are necessary
* (such as holding appropriate locks) to avoid racing
* with another list-mutation primitive, such as hlist_add_head_rcu()
* or hlist_del_rcu(), running on this same list.
* However, it is perfectly legal to run concurrently with
* the _rcu list-traversal primitives, such as
* hlist_for_each_entry_rcu(), used to prevent memory-consistency
* problems on Alpha CPUs.
*/
static inline void hlist_add_after_rcu(struct hlist_node *prev,
struct hlist_node *n)
{
n->next = prev->next;
n->pprev = &prev->next;
rcu_assign_pointer(hlist_next_rcu(prev), n);
if (n->next)
n->next->pprev = &n->next;
}
#define __hlist_for_each_rcu(pos, head) \
for (pos = rcu_dereference(hlist_first_rcu(head)); \
pos; \
pos = rcu_dereference(hlist_next_rcu(pos)))
/**
* hlist_for_each_entry_rcu - iterate over rcu list of given type
* @pos: the type * to use as a loop cursor.
* @head: the head for your list.
* @member: the name of the hlist_node within the struct.
*
* This list-traversal primitive may safely run concurrently with
* the _rcu list-mutation primitives such as hlist_add_head_rcu()
* as long as the traversal is guarded by rcu_read_lock().
*/
#define hlist_for_each_entry_rcu(pos, head, member) \
for (pos = hlist_entry_safe (rcu_dereference_raw(hlist_first_rcu(head)),\
typeof(*(pos)), member); \
pos; \
pos = hlist_entry_safe(rcu_dereference_raw(hlist_next_rcu(\
&(pos)->member)), typeof(*(pos)), member))
/**
* hlist_for_each_entry_rcu_notrace - iterate over rcu list of given type (for tracing)
* @pos: the type * to use as a loop cursor.
* @head: the head for your list.
* @member: the name of the hlist_node within the struct.
*
* This list-traversal primitive may safely run concurrently with
* the _rcu list-mutation primitives such as hlist_add_head_rcu()
* as long as the traversal is guarded by rcu_read_lock().
*
* This is the same as hlist_for_each_entry_rcu() except that it does
* not do any RCU debugging or tracing.
*/
#define hlist_for_each_entry_rcu_notrace(pos, head, member) \
for (pos = hlist_entry_safe (rcu_dereference_raw_notrace(hlist_first_rcu(head)),\
typeof(*(pos)), member); \
pos; \
pos = hlist_entry_safe(rcu_dereference_raw_notrace(hlist_next_rcu(\
&(pos)->member)), typeof(*(pos)), member))
/**
* hlist_for_each_entry_rcu_bh - iterate over rcu list of given type
* @pos: the type * to use as a loop cursor.
* @head: the head for your list.
* @member: the name of the hlist_node within the struct.
*
* This list-traversal primitive may safely run concurrently with
* the _rcu list-mutation primitives such as hlist_add_head_rcu()
* as long as the traversal is guarded by rcu_read_lock().
*/
#define hlist_for_each_entry_rcu_bh(pos, head, member) \
for (pos = hlist_entry_safe(rcu_dereference_bh(hlist_first_rcu(head)),\
typeof(*(pos)), member); \
pos; \
pos = hlist_entry_safe(rcu_dereference_bh(hlist_next_rcu(\
&(pos)->member)), typeof(*(pos)), member))
/**
* hlist_for_each_entry_continue_rcu - iterate over a hlist continuing after current point
* @pos: the type * to use as a loop cursor.
* @member: the name of the hlist_node within the struct.
*/
#define hlist_for_each_entry_continue_rcu(pos, member) \
for (pos = hlist_entry_safe(rcu_dereference((pos)->member.next),\
typeof(*(pos)), member); \
pos; \
pos = hlist_entry_safe(rcu_dereference((pos)->member.next),\
typeof(*(pos)), member))
/**
* hlist_for_each_entry_continue_rcu_bh - iterate over a hlist continuing after current point
* @pos: the type * to use as a loop cursor.
* @member: the name of the hlist_node within the struct.
*/
#define hlist_for_each_entry_continue_rcu_bh(pos, member) \
for (pos = hlist_entry_safe(rcu_dereference_bh((pos)->member.next),\
typeof(*(pos)), member); \
pos; \
pos = hlist_entry_safe(rcu_dereference_bh((pos)->member.next),\
typeof(*(pos)), member))
#endif /* __KERNEL__ */
#endif

11
drivers/include/linux/slab.h
View File

@ -1,3 +1,14 @@
/*
* Written by Mark Hemment, 1996 (markhe@nextd.demon.co.uk).
*
* (C) SGI 2006, Christoph Lameter
* Cleaned up and restructured to ease the addition of alternative
* implementations of SLAB allocators.
*/
#ifndef _LINUX_SLAB_H
#define _LINUX_SLAB_H
#include <errno.h>
// stub
#endif /* _LINUX_SLAB_H */

5
drivers/include/linux/spinlock_up.h
View File

@ -14,7 +14,10 @@
* In the debug case, 1 means unlocked, 0 means locked. (the values
* are inverted, to catch initialization bugs)
*
* No atomicity anywhere, we are on UP.
* No atomicity anywhere, we are on UP. However, we still need
* the compiler barriers, because we do not want the compiler to
* move potentially faulting instructions (notably user accesses)
* into the locked sequence, resulting in non-atomic execution.
*/
#ifdef CONFIG_DEBUG_SPINLOCK

11
drivers/include/linux/string.h
View File

@ -142,4 +142,15 @@ static inline bool strstarts(const char *str, const char *prefix)
extern size_t memweight(const void *ptr, size_t bytes);
/**
* kbasename - return the last part of a pathname.
*
* @path: path to extract the filename from.
*/
static inline const char *kbasename(const char *path)
{
const char *tail = strrchr(path, '/');
return tail ? tail + 1 : path;
}
#endif /* _LINUX_STRING_H_ */

270
drivers/include/linux/time.h Normal file
View File

@ -0,0 +1,270 @@
#ifndef _LINUX_TIME_H
#define _LINUX_TIME_H
//# include <linux/cache.h>
//# include <linux/seqlock.h>
# include <linux/math64.h>
//#include <uapi/linux/time.h>
extern struct timezone sys_tz;
/* Parameters used to convert the timespec values: */
#define MSEC_PER_SEC 1000L
#define USEC_PER_MSEC 1000L
#define NSEC_PER_USEC 1000L
#define NSEC_PER_MSEC 1000000L
#define USEC_PER_SEC 1000000L
#define NSEC_PER_SEC 1000000000L
#define FSEC_PER_SEC 1000000000000000LL
#define TIME_T_MAX (time_t)((1UL << ((sizeof(time_t) << 3) - 1)) - 1)
static inline int timespec_equal(const struct timespec *a,
const struct timespec *b)
{
return (a->tv_sec == b->tv_sec) && (a->tv_nsec == b->tv_nsec);
}
/*
* lhs < rhs: return <0
* lhs == rhs: return 0
* lhs > rhs: return >0
*/
static inline int timespec_compare(const struct timespec *lhs, const struct timespec *rhs)
{
if (lhs->tv_sec < rhs->tv_sec)
return -1;
if (lhs->tv_sec > rhs->tv_sec)
return 1;
return lhs->tv_nsec - rhs->tv_nsec;
}
static inline int timeval_compare(const struct timeval *lhs, const struct timeval *rhs)
{
if (lhs->tv_sec < rhs->tv_sec)
return -1;
if (lhs->tv_sec > rhs->tv_sec)
return 1;
return lhs->tv_usec - rhs->tv_usec;
}
extern unsigned long mktime(const unsigned int year, const unsigned int mon,
const unsigned int day, const unsigned int hour,
const unsigned int min, const unsigned int sec);
extern void set_normalized_timespec(struct timespec *ts, time_t sec, s64 nsec);
/*
* timespec_add_safe assumes both values are positive and checks
* for overflow. It will return TIME_T_MAX if the reutrn would be
* smaller then either of the arguments.
*/
extern struct timespec timespec_add_safe(const struct timespec lhs,
const struct timespec rhs);
static inline struct timespec timespec_add(struct timespec lhs,
struct timespec rhs)
{
struct timespec ts_delta;
set_normalized_timespec(&ts_delta, lhs.tv_sec + rhs.tv_sec,
lhs.tv_nsec + rhs.tv_nsec);
return ts_delta;
}
/*
* sub = lhs - rhs, in normalized form
*/
static inline struct timespec timespec_sub(struct timespec lhs,
struct timespec rhs)
{
struct timespec ts_delta;
set_normalized_timespec(&ts_delta, lhs.tv_sec - rhs.tv_sec,
lhs.tv_nsec - rhs.tv_nsec);
return ts_delta;
}
#define KTIME_MAX ((s64)~((u64)1 << 63))
#if (BITS_PER_LONG == 64)
# define KTIME_SEC_MAX (KTIME_MAX / NSEC_PER_SEC)
#else
# define KTIME_SEC_MAX LONG_MAX
#endif
/*
* Returns true if the timespec is norm, false if denorm:
*/
static inline bool timespec_valid(const struct timespec *ts)
{
/* Dates before 1970 are bogus */
if (ts->tv_sec < 0)
return false;
/* Can't have more nanoseconds then a second */
if ((unsigned long)ts->tv_nsec >= NSEC_PER_SEC)
return false;
return true;
}
static inline bool timespec_valid_strict(const struct timespec *ts)
{
if (!timespec_valid(ts))
return false;
/* Disallow values that could overflow ktime_t */
if ((unsigned long long)ts->tv_sec >= KTIME_SEC_MAX)
return false;
return true;
}
extern bool persistent_clock_exist;
static inline bool has_persistent_clock(void)
{
return persistent_clock_exist;
}
extern void read_persistent_clock(struct timespec *ts);
extern void read_boot_clock(struct timespec *ts);
extern int persistent_clock_is_local;
extern int update_persistent_clock(struct timespec now);
void timekeeping_init(void);
extern int timekeeping_suspended;
unsigned long get_seconds(void);
struct timespec current_kernel_time(void);
struct timespec __current_kernel_time(void); /* does not take xtime_lock */
struct timespec get_monotonic_coarse(void);
void get_xtime_and_monotonic_and_sleep_offset(struct timespec *xtim,
struct timespec *wtom, struct timespec *sleep);
void timekeeping_inject_sleeptime(struct timespec *delta);
#define CURRENT_TIME (current_kernel_time())
#define CURRENT_TIME_SEC ((struct timespec) { get_seconds(), 0 })
/* Some architectures do not supply their own clocksource.
* This is mainly the case in architectures that get their
* inter-tick times by reading the counter on their interval
* timer. Since these timers wrap every tick, they're not really
* useful as clocksources. Wrapping them to act like one is possible
* but not very efficient. So we provide a callout these arches
* can implement for use with the jiffies clocksource to provide
* finer then tick granular time.
*/
#ifdef CONFIG_ARCH_USES_GETTIMEOFFSET
extern u32 (*arch_gettimeoffset)(void);
#endif
extern void do_gettimeofday(struct timeval *tv);
extern int do_settimeofday(const struct timespec *tv);
extern int do_sys_settimeofday(const struct timespec *tv,
const struct timezone *tz);
#define do_posix_clock_monotonic_gettime(ts) ktime_get_ts(ts)
extern long do_utimes(int dfd, const char __user *filename, struct timespec *times, int flags);
struct itimerval;
extern int do_setitimer(int which, struct itimerval *value,
struct itimerval *ovalue);
extern unsigned int alarm_setitimer(unsigned int seconds);
extern int do_getitimer(int which, struct itimerval *value);
extern int __getnstimeofday(struct timespec *tv);
extern void getnstimeofday(struct timespec *tv);
extern void getrawmonotonic(struct timespec *ts);
extern void getnstime_raw_and_real(struct timespec *ts_raw,
struct timespec *ts_real);
extern void getboottime(struct timespec *ts);
extern void monotonic_to_bootbased(struct timespec *ts);
extern void get_monotonic_boottime(struct timespec *ts);
extern struct timespec timespec_trunc(struct timespec t, unsigned gran);
extern int timekeeping_valid_for_hres(void);
extern u64 timekeeping_max_deferment(void);
extern int timekeeping_inject_offset(struct timespec *ts);
extern s32 timekeeping_get_tai_offset(void);
extern void timekeeping_set_tai_offset(s32 tai_offset);
extern void timekeeping_clocktai(struct timespec *ts);
struct tms;
extern void do_sys_times(struct tms *);
/*
* Similar to the struct tm in userspace <time.h>, but it needs to be here so
* that the kernel source is self contained.
*/
struct tm {
/*
* the number of seconds after the minute, normally in the range
* 0 to 59, but can be up to 60 to allow for leap seconds
*/
int tm_sec;
/* the number of minutes after the hour, in the range 0 to 59*/
int tm_min;
/* the number of hours past midnight, in the range 0 to 23 */
int tm_hour;
/* the day of the month, in the range 1 to 31 */
int tm_mday;
/* the number of months since January, in the range 0 to 11 */
int tm_mon;
/* the number of years since 1900 */
long tm_year;
/* the number of days since Sunday, in the range 0 to 6 */
int tm_wday;
/* the number of days since January 1, in the range 0 to 365 */
int tm_yday;
};
void time_to_tm(time_t totalsecs, int offset, struct tm *result);
/**
* timespec_to_ns - Convert timespec to nanoseconds
* @ts: pointer to the timespec variable to be converted
*
* Returns the scalar nanosecond representation of the timespec
* parameter.
*/
static inline s64 timespec_to_ns(const struct timespec *ts)
{
return ((s64) ts->tv_sec * NSEC_PER_SEC) + ts->tv_nsec;
}
/**
* timeval_to_ns - Convert timeval to nanoseconds
* @ts: pointer to the timeval variable to be converted
*
* Returns the scalar nanosecond representation of the timeval
* parameter.
*/
static inline s64 timeval_to_ns(const struct timeval *tv)
{
return ((s64) tv->tv_sec * NSEC_PER_SEC) +
tv->tv_usec * NSEC_PER_USEC;
}
/**
* ns_to_timespec - Convert nanoseconds to timespec
* @nsec: the nanoseconds value to be converted
*
* Returns the timespec representation of the nsec parameter.
*/
extern struct timespec ns_to_timespec(const s64 nsec);
/**
* ns_to_timeval - Convert nanoseconds to timeval
* @nsec: the nanoseconds value to be converted
*
* Returns the timeval representation of the nsec parameter.
*/
extern struct timeval ns_to_timeval(const s64 nsec);
/**
* timespec_add_ns - Adds nanoseconds to a timespec
* @a: pointer to timespec to be incremented
* @ns: unsigned nanoseconds value to be added
*
* This must always be inlined because its used from the x86-64 vdso,
* which cannot call other kernel functions.
*/
static __always_inline void timespec_add_ns(struct timespec *a, u64 ns)
{
a->tv_sec += __iter_div_u64_rem(a->tv_nsec + ns, NSEC_PER_SEC, &ns);
a->tv_nsec = ns;
}
#endif