| /drivers/include/drm/drmP.h |
|---|
| 35,6 → 35,8 |
| #ifndef _DRM_P_H_ |
| #define _DRM_P_H_ |
| #define iowrite32(v, addr) writel((v), (addr)) |
| #ifdef __KERNEL__ |
| #ifdef __alpha__ |
| /* add include of current.h so that "current" is defined |
| 321,6 → 323,7 |
| int flags; |
| drm_ioctl_t *func; |
| unsigned int cmd_drv; |
| const char *name; |
| }; |
| /** |
| 329,7 → 332,7 |
| */ |
| #define DRM_IOCTL_DEF_DRV(ioctl, _func, _flags) \ |
| [DRM_IOCTL_NR(DRM_##ioctl)] = {.cmd = DRM_##ioctl, .func = _func, .flags = _flags, .cmd_drv = DRM_IOCTL_##ioctl} |
| [DRM_IOCTL_NR(DRM_##ioctl)] = {.cmd = DRM_##ioctl, .func = _func, .flags = _flags, .cmd_drv = DRM_IOCTL_##ioctl, .name = #ioctl} |
| struct drm_magic_entry { |
| struct list_head head; |
| /drivers/include/drm/drm_crtc.h |
|---|
| 120,7 → 120,7 |
| .hdisplay = (hd), .hsync_start = (hss), .hsync_end = (hse), \ |
| .htotal = (ht), .hskew = (hsk), .vdisplay = (vd), \ |
| .vsync_start = (vss), .vsync_end = (vse), .vtotal = (vt), \ |
| .vscan = (vs), .flags = (f), .vrefresh = 0, \ |
| .vscan = (vs), .flags = (f), \ |
| .base.type = DRM_MODE_OBJECT_MODE |
| #define CRTC_INTERLACE_HALVE_V 0x1 /* halve V values for interlacing */ |
| 310,7 → 310,7 |
| * drm_crtc_funcs - control CRTCs for a given device |
| * @save: save CRTC state |
| * @restore: restore CRTC state |
| * @reset: reset CRTC after state has been invalidate (e.g. resume) |
| * @reset: reset CRTC after state has been invalidated (e.g. resume) |
| * @cursor_set: setup the cursor |
| * @cursor_move: move the cursor |
| * @gamma_set: specify color ramp for CRTC |
| 554,7 → 554,6 |
| * @probed_modes: list of modes derived directly from the display |
| * @display_info: information about attached display (e.g. from EDID) |
| * @funcs: connector control functions |
| * @user_modes: user added mode list |
| * @edid_blob_ptr: DRM property containing EDID if present |
| * @properties: property tracking for this connector |
| * @polled: a %DRM_CONNECTOR_POLL_<foo> value for core driven polling |
| 598,7 → 597,6 |
| struct drm_display_info display_info; |
| const struct drm_connector_funcs *funcs; |
| struct list_head user_modes; |
| struct drm_property_blob *edid_blob_ptr; |
| struct drm_object_properties properties; |
| 922,15 → 920,11 |
| extern void drm_mode_config_cleanup(struct drm_device *dev); |
| extern void drm_mode_set_name(struct drm_display_mode *mode); |
| extern bool drm_mode_equal(const struct drm_display_mode *mode1, const struct drm_display_mode *mode2); |
| extern bool drm_mode_equal_no_clocks(const struct drm_display_mode *mode1, const struct drm_display_mode *mode2); |
| extern int drm_mode_width(const struct drm_display_mode *mode); |
| extern int drm_mode_height(const struct drm_display_mode *mode); |
| /* for us by fb module */ |
| extern int drm_mode_attachmode_crtc(struct drm_device *dev, |
| struct drm_crtc *crtc, |
| const struct drm_display_mode *mode); |
| extern int drm_mode_detachmode_crtc(struct drm_device *dev, struct drm_display_mode *mode); |
| extern struct drm_display_mode *drm_mode_create(struct drm_device *dev); |
| extern void drm_mode_destroy(struct drm_device *dev, struct drm_display_mode *mode); |
| extern void drm_mode_list_concat(struct list_head *head, |
| 938,6 → 932,9 |
| extern void drm_mode_validate_size(struct drm_device *dev, |
| struct list_head *mode_list, |
| int maxX, int maxY, int maxPitch); |
| extern void drm_mode_validate_clocks(struct drm_device *dev, |
| struct list_head *mode_list, |
| int *min, int *max, int n_ranges); |
| extern void drm_mode_prune_invalid(struct drm_device *dev, |
| struct list_head *mode_list, bool verbose); |
| extern void drm_mode_sort(struct list_head *mode_list); |
| 1036,14 → 1033,6 |
| void *data, struct drm_file *file_priv); |
| extern int drm_mode_dirtyfb_ioctl(struct drm_device *dev, |
| void *data, struct drm_file *file_priv); |
| extern int drm_mode_addmode_ioctl(struct drm_device *dev, |
| void *data, struct drm_file *file_priv); |
| extern int drm_mode_rmmode_ioctl(struct drm_device *dev, |
| void *data, struct drm_file *file_priv); |
| extern int drm_mode_attachmode_ioctl(struct drm_device *dev, |
| void *data, struct drm_file *file_priv); |
| extern int drm_mode_detachmode_ioctl(struct drm_device *dev, |
| void *data, struct drm_file *file_priv); |
| extern int drm_mode_getproperty_ioctl(struct drm_device *dev, |
| void *data, struct drm_file *file_priv); |
| /drivers/include/drm/drm_edid.h |
|---|
| 244,6 → 244,14 |
| #define EDID_PRODUCT_ID(e) ((e)->prod_code[0] | ((e)->prod_code[1] << 8)) |
| /* Short Audio Descriptor */ |
| struct cea_sad { |
| u8 format; |
| u8 channels; /* max number of channels - 1 */ |
| u8 freq; |
| u8 byte2; /* meaning depends on format */ |
| }; |
| struct drm_encoder; |
| struct drm_connector; |
| struct drm_display_mode; |
| 250,6 → 258,7 |
| struct hdmi_avi_infoframe; |
| void drm_edid_to_eld(struct drm_connector *connector, struct edid *edid); |
| int drm_edid_to_sad(struct edid *edid, struct cea_sad **sads); |
| int drm_av_sync_delay(struct drm_connector *connector, |
| struct drm_display_mode *mode); |
| struct drm_connector *drm_select_eld(struct drm_encoder *encoder, |
| /drivers/include/drm/drm_fb_helper.h |
|---|
| 49,13 → 49,14 |
| /** |
| * struct drm_fb_helper_funcs - driver callbacks for the fbdev emulation library |
| * @gamma_set: - Set the given gamma lut register on the given crtc. |
| * @gamma_get: - Read the given gamma lut register on the given crtc, used to |
| * @gamma_set: Set the given gamma lut register on the given crtc. |
| * @gamma_get: Read the given gamma lut register on the given crtc, used to |
| * save the current lut when force-restoring the fbdev for e.g. |
| * kdbg. |
| * @fb_probe: - Driver callback to allocate and initialize the fbdev info |
| * @fb_probe: Driver callback to allocate and initialize the fbdev info |
| * structure. Futhermore it also needs to allocate the drm |
| * framebuffer used to back the fbdev. |
| * @initial_config: Setup an initial fbdev display configuration |
| * |
| * Driver callbacks used by the fbdev emulation helper library. |
| */ |
| 67,6 → 68,10 |
| int (*fb_probe)(struct drm_fb_helper *helper, |
| struct drm_fb_helper_surface_size *sizes); |
| bool (*initial_config)(struct drm_fb_helper *fb_helper, |
| struct drm_fb_helper_crtc **crtcs, |
| struct drm_display_mode **modes, |
| bool *enabled, int width, int height); |
| }; |
| struct drm_fb_helper_connector { |
| 101,12 → 106,6 |
| int drm_fb_helper_set_par(struct fb_info *info); |
| int drm_fb_helper_check_var(struct fb_var_screeninfo *var, |
| struct fb_info *info); |
| int drm_fb_helper_setcolreg(unsigned regno, |
| unsigned red, |
| unsigned green, |
| unsigned blue, |
| unsigned transp, |
| struct fb_info *info); |
| bool drm_fb_helper_restore_fbdev_mode(struct drm_fb_helper *fb_helper); |
| void drm_fb_helper_fill_var(struct fb_info *info, struct drm_fb_helper *fb_helper, |
| /drivers/include/drm/drm_pciids.h |
|---|
| 152,6 → 152,12 |
| {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, 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}, \ |
| {0x1002, 0x6665, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_HAINAN|RADEON_IS_MOBILITY|RADEON_NEW_MEMMAP}, \ |
| {0x1002, 0x6667, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_HAINAN|RADEON_IS_MOBILITY|RADEON_NEW_MEMMAP}, \ |
| {0x1002, 0x666F, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_HAINAN|RADEON_IS_MOBILITY|RADEON_NEW_MEMMAP}, \ |
| {0x1002, 0x6700, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_CAYMAN|RADEON_NEW_MEMMAP}, \ |
| {0x1002, 0x6701, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_CAYMAN|RADEON_NEW_MEMMAP}, \ |
| {0x1002, 0x6702, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_CAYMAN|RADEON_NEW_MEMMAP}, \ |
| 240,6 → 246,7 |
| {0x1002, 0x6819, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_PITCAIRN|RADEON_NEW_MEMMAP}, \ |
| {0x1002, 0x6820, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_VERDE|RADEON_IS_MOBILITY|RADEON_NEW_MEMMAP}, \ |
| {0x1002, 0x6821, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_VERDE|RADEON_IS_MOBILITY|RADEON_NEW_MEMMAP}, \ |
| {0x1002, 0x6822, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_VERDE|RADEON_IS_MOBILITY|RADEON_NEW_MEMMAP}, \ |
| {0x1002, 0x6823, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_VERDE|RADEON_IS_MOBILITY|RADEON_NEW_MEMMAP}, \ |
| {0x1002, 0x6824, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_VERDE|RADEON_IS_MOBILITY|RADEON_NEW_MEMMAP}, \ |
| {0x1002, 0x6825, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_VERDE|RADEON_IS_MOBILITY|RADEON_NEW_MEMMAP}, \ |
| 247,11 → 254,13 |
| {0x1002, 0x6827, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_VERDE|RADEON_IS_MOBILITY|RADEON_NEW_MEMMAP}, \ |
| {0x1002, 0x6828, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_VERDE|RADEON_NEW_MEMMAP}, \ |
| {0x1002, 0x6829, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_VERDE|RADEON_NEW_MEMMAP}, \ |
| {0x1002, 0x682A, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_VERDE|RADEON_IS_MOBILITY|RADEON_NEW_MEMMAP}, \ |
| {0x1002, 0x682B, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_VERDE|RADEON_IS_MOBILITY|RADEON_NEW_MEMMAP}, \ |
| {0x1002, 0x682D, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_VERDE|RADEON_IS_MOBILITY|RADEON_NEW_MEMMAP}, \ |
| {0x1002, 0x682F, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_VERDE|RADEON_IS_MOBILITY|RADEON_NEW_MEMMAP}, \ |
| {0x1002, 0x6830, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_VERDE|RADEON_IS_MOBILITY|RADEON_NEW_MEMMAP}, \ |
| {0x1002, 0x6831, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_VERDE|RADEON_IS_MOBILITY|RADEON_NEW_MEMMAP}, \ |
| {0x1002, 0x6835, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_VERDE|RADEON_NEW_MEMMAP}, \ |
| {0x1002, 0x6837, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_VERDE|RADEON_NEW_MEMMAP}, \ |
| {0x1002, 0x6838, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_VERDE|RADEON_NEW_MEMMAP}, \ |
| {0x1002, 0x6839, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_VERDE|RADEON_NEW_MEMMAP}, \ |
| 581,7 → 590,11 |
| {0x1002, 0x9908, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_ARUBA|RADEON_IS_MOBILITY|RADEON_NEW_MEMMAP|RADEON_IS_IGP}, \ |
| {0x1002, 0x9909, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_ARUBA|RADEON_IS_MOBILITY|RADEON_NEW_MEMMAP|RADEON_IS_IGP}, \ |
| {0x1002, 0x990A, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_ARUBA|RADEON_IS_MOBILITY|RADEON_NEW_MEMMAP|RADEON_IS_IGP}, \ |
| {0x1002, 0x990F, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_ARUBA|RADEON_NEW_MEMMAP|RADEON_IS_IGP}, \ |
| {0x1002, 0x990B, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_ARUBA|RADEON_IS_MOBILITY|RADEON_NEW_MEMMAP|RADEON_IS_IGP}, \ |
| {0x1002, 0x990C, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_ARUBA|RADEON_NEW_MEMMAP|RADEON_IS_IGP}, \ |
| {0x1002, 0x990D, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_ARUBA|RADEON_IS_MOBILITY|RADEON_NEW_MEMMAP|RADEON_IS_IGP}, \ |
| {0x1002, 0x990E, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_ARUBA|RADEON_NEW_MEMMAP|RADEON_IS_IGP}, \ |
| {0x1002, 0x990F, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_ARUBA|RADEON_IS_MOBILITY|RADEON_NEW_MEMMAP|RADEON_IS_IGP}, \ |
| {0x1002, 0x9910, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_ARUBA|RADEON_IS_MOBILITY|RADEON_NEW_MEMMAP|RADEON_IS_IGP}, \ |
| {0x1002, 0x9913, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_ARUBA|RADEON_IS_MOBILITY|RADEON_NEW_MEMMAP|RADEON_IS_IGP}, \ |
| {0x1002, 0x9917, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_ARUBA|RADEON_NEW_MEMMAP|RADEON_IS_IGP}, \ |
| 592,6 → 605,15 |
| {0x1002, 0x9992, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_ARUBA|RADEON_IS_MOBILITY|RADEON_NEW_MEMMAP|RADEON_IS_IGP}, \ |
| {0x1002, 0x9993, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_ARUBA|RADEON_NEW_MEMMAP|RADEON_IS_IGP}, \ |
| {0x1002, 0x9994, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_ARUBA|RADEON_IS_MOBILITY|RADEON_NEW_MEMMAP|RADEON_IS_IGP}, \ |
| {0x1002, 0x9995, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_ARUBA|RADEON_IS_MOBILITY|RADEON_NEW_MEMMAP|RADEON_IS_IGP}, \ |
| {0x1002, 0x9996, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_ARUBA|RADEON_NEW_MEMMAP|RADEON_IS_IGP}, \ |
| {0x1002, 0x9997, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_ARUBA|RADEON_IS_MOBILITY|RADEON_NEW_MEMMAP|RADEON_IS_IGP}, \ |
| {0x1002, 0x9998, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_ARUBA|RADEON_NEW_MEMMAP|RADEON_IS_IGP}, \ |
| {0x1002, 0x9999, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_ARUBA|RADEON_IS_MOBILITY|RADEON_NEW_MEMMAP|RADEON_IS_IGP}, \ |
| {0x1002, 0x999A, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_ARUBA|RADEON_IS_MOBILITY|RADEON_NEW_MEMMAP|RADEON_IS_IGP}, \ |
| {0x1002, 0x999B, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_ARUBA|RADEON_IS_MOBILITY|RADEON_NEW_MEMMAP|RADEON_IS_IGP}, \ |
| {0x1002, 0x999C, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_ARUBA|RADEON_NEW_MEMMAP|RADEON_IS_IGP}, \ |
| {0x1002, 0x999D, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_ARUBA|RADEON_NEW_MEMMAP|RADEON_IS_IGP}, \ |
| {0x1002, 0x99A0, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_ARUBA|RADEON_IS_MOBILITY|RADEON_NEW_MEMMAP|RADEON_IS_IGP}, \ |
| {0x1002, 0x99A2, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_ARUBA|RADEON_IS_MOBILITY|RADEON_NEW_MEMMAP|RADEON_IS_IGP}, \ |
| {0x1002, 0x99A4, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_ARUBA|RADEON_NEW_MEMMAP|RADEON_IS_IGP}, \ |
| /drivers/include/linux/bug.h |
|---|
| 11,9 → 11,9 |
| //extern void warn_slowpath_null(const char *file, const int line); |
| #define __WARN() printf("\nWARNING: at %s:%d\n", __FILE__, __LINE__) |
| #define __WARN_printf(arg...) printf("\nWARNING: at %s:%d\n", __FILE__, __LINE__) |
| //#define __WARN_printf(arg...) printf("\nWARNING: at %s:%d\n", __FILE__, __LINE__) |
| #define __WARN_printf(arg...) do { printf(arg); __WARN(); } while (0) |
| #define WARN(condition, format...) ({ \ |
| int __ret_warn_on = !!(condition); \ |
| if (unlikely(__ret_warn_on)) \ |
| /drivers/include/linux/kernel.h |
|---|
| 36,6 → 36,10 |
| #define PTR_ALIGN(p, a) ((typeof(p))ALIGN((unsigned long)(p), (a))) |
| #define IS_ALIGNED(x, a) (((x) & ((typeof(x))(a) - 1)) == 0) |
| #define __round_mask(x, y) ((__typeof__(x))((y)-1)) |
| #define round_up(x, y) ((((x)-1) | __round_mask(x, y))+1) |
| /* The `const' in roundup() prevents gcc-3.3 from calling __divdi3 */ |
| #define roundup(x, y) ( \ |
| { \ |
| 418,5 → 422,12 |
| extern unsigned int tsc_khz; |
| #define on_each_cpu(func,info,wait) \ |
| ({ \ |
| func(info); \ |
| 0; \ |
| }) |
| #endif |
| /drivers/include/linux/mm.h |
|---|
| 1,8 → 1,15 |
| #ifndef _LINUX_MM_H |
| #define _LINUX_MM_H |
| #include <kernel.h> |
| #define VM_NORESERVE 0x00200000 |
| #define nth_page(page,n) ((void*)(((page_to_phys(page)>>12)+(n))<<12)) |
| #define page_to_pfn(page) (page_to_phys(page)>>12) |
| /* to align the pointer to the (next) page boundary */ |
| #define PAGE_ALIGN(addr) ALIGN(addr, PAGE_SIZE) |
| #endif |
| /drivers/include/linux/pci.h |
|---|
| 263,7 → 263,7 |
| PCI_NUM_RESOURCES, |
| /* preserve this for compatibility */ |
| DEVICE_COUNT_RESOURCE |
| DEVICE_COUNT_RESOURCE = PCI_NUM_RESOURCES, |
| }; |
| typedef int __bitwise pci_power_t; |
| 376,8 → 376,7 |
| pci_power_t current_state; /* Current operating state. In ACPI-speak, |
| this is D0-D3, D0 being fully functional, |
| and D3 being off. */ |
| int pm_cap; /* PM capability offset in the |
| configuration space */ |
| u8 pm_cap; /* PM capability offset */ |
| unsigned int pme_support:5; /* Bitmask of states from which PME# |
| can be generated */ |
| unsigned int pme_interrupt:1; |
| 403,7 → 402,7 |
| pci_channel_state_t error_state; /* current connectivity state */ |
| struct device dev; /* Generic device interface */ |
| struct acpi_device *acpi_dev; |
| int cfg_size; /* Size of configuration space */ |
| /* |
| /drivers/include/linux/scatterlist.h |
|---|
| 172,6 → 172,22 |
| } |
| /** |
| * sg_unmark_end - Undo setting the end of the scatterlist |
| * @sg: SG entryScatterlist |
| * |
| * Description: |
| * Removes the termination marker from the given entry of the scatterlist. |
| * |
| **/ |
| static inline void sg_unmark_end(struct scatterlist *sg) |
| { |
| #ifdef CONFIG_DEBUG_SG |
| BUG_ON(sg->sg_magic != SG_MAGIC); |
| #endif |
| sg->page_link &= ~0x02; |
| } |
| /** |
| * sg_phys - Return physical address of an sg entry |
| * @sg: SG entry |
| * |
| 231,7 → 247,60 |
| */ |
| #define SG_MAX_SINGLE_ALLOC (4*PAGE_SIZE / sizeof(struct scatterlist)) |
| /* |
| * sg page iterator |
| * |
| * Iterates over sg entries page-by-page. On each successful iteration, |
| * you can call sg_page_iter_page(@piter) and sg_page_iter_dma_address(@piter) |
| * to get the current page and its dma address. @piter->sg will point to the |
| * sg holding this page and @piter->sg_pgoffset to the page's page offset |
| * within the sg. The iteration will stop either when a maximum number of sg |
| * entries was reached or a terminating sg (sg_last(sg) == true) was reached. |
| */ |
| struct sg_page_iter { |
| struct scatterlist *sg; /* sg holding the page */ |
| unsigned int sg_pgoffset; /* page offset within the sg */ |
| /* these are internal states, keep away */ |
| unsigned int __nents; /* remaining sg entries */ |
| int __pg_advance; /* nr pages to advance at the |
| * next step */ |
| }; |
| bool __sg_page_iter_next(struct sg_page_iter *piter); |
| void __sg_page_iter_start(struct sg_page_iter *piter, |
| struct scatterlist *sglist, unsigned int nents, |
| unsigned long pgoffset); |
| /** |
| * sg_page_iter_page - get the current page held by the page iterator |
| * @piter: page iterator holding the page |
| */ |
| static inline struct page *sg_page_iter_page(struct sg_page_iter *piter) |
| { |
| return nth_page(sg_page(piter->sg), piter->sg_pgoffset); |
| } |
| /** |
| * sg_page_iter_dma_address - get the dma address of the current page held by |
| * the page iterator. |
| * @piter: page iterator holding the page |
| */ |
| static inline dma_addr_t sg_page_iter_dma_address(struct sg_page_iter *piter) |
| { |
| return sg_dma_address(piter->sg) + (piter->sg_pgoffset << PAGE_SHIFT); |
| } |
| /** |
| * for_each_sg_page - iterate over the pages of the given sg list |
| * @sglist: sglist to iterate over |
| * @piter: page iterator to hold current page, sg, sg_pgoffset |
| * @nents: maximum number of sg entries to iterate over |
| * @pgoffset: starting page offset |
| */ |
| #define for_each_sg_page(sglist, piter, nents, pgoffset) \ |
| for (__sg_page_iter_start((piter), (sglist), (nents), (pgoffset)); \ |
| __sg_page_iter_next(piter);) |
| /* |
| * Mapping sg iterator |
| * |
| 258,11 → 327,11 |
| void *addr; /* pointer to the mapped area */ |
| size_t length; /* length of the mapped area */ |
| size_t consumed; /* number of consumed bytes */ |
| struct sg_page_iter piter; /* page iterator */ |
| /* these are internal states, keep away */ |
| struct scatterlist *__sg; /* current entry */ |
| unsigned int __nents; /* nr of remaining entries */ |
| unsigned int __offset; /* offset within sg */ |
| unsigned int __offset; /* offset within page */ |
| unsigned int __remaining; /* remaining bytes on page */ |
| unsigned int __flags; |
| }; |