cregit-Linux how code gets into the kernel

Release 4.7 drivers/gpu/drm/ast/ast_drv.h

/*
 * Copyright 2012 Red Hat Inc.
 *
 * 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 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.
 *
 * The above copyright notice and this permission notice (including the
 * next paragraph) shall be included in all copies or substantial portions
 * of the Software.
 *
 */
/*
 * Authors: Dave Airlie <airlied@redhat.com>
 */
#ifndef __AST_DRV_H__

#define __AST_DRV_H__

#include <drm/drm_fb_helper.h>

#include <drm/ttm/ttm_bo_api.h>
#include <drm/ttm/ttm_bo_driver.h>
#include <drm/ttm/ttm_placement.h>
#include <drm/ttm/ttm_memory.h>
#include <drm/ttm/ttm_module.h>

#include <drm/drm_gem.h>

#include <linux/i2c.h>
#include <linux/i2c-algo-bit.h>


#define DRIVER_AUTHOR		"Dave Airlie"


#define DRIVER_NAME		"ast"

#define DRIVER_DESC		"AST"

#define DRIVER_DATE		"20120228"


#define DRIVER_MAJOR		0

#define DRIVER_MINOR		1

#define DRIVER_PATCHLEVEL	0


#define PCI_CHIP_AST2000 0x2000

#define PCI_CHIP_AST2100 0x2010

#define PCI_CHIP_AST1180 0x1180



enum ast_chip {
	
AST2000,
	
AST2100,
	
AST1100,
	
AST2200,
	
AST2150,
	
AST2300,
	
AST2400,
	
AST1180,
};


enum ast_tx_chip {
	
AST_TX_NONE,
	
AST_TX_SIL164,
	
AST_TX_ITE66121,
	
AST_TX_DP501,
};


#define AST_DRAM_512Mx16 0

#define AST_DRAM_1Gx16   1

#define AST_DRAM_512Mx32 2

#define AST_DRAM_1Gx32   3

#define AST_DRAM_2Gx16   6

#define AST_DRAM_4Gx16   7

struct ast_fbdev;


struct ast_private {
	
struct drm_device *dev;

	
void __iomem *regs;
	
void __iomem *ioregs;

	
enum ast_chip chip;
	
bool vga2_clone;
	
uint32_t dram_bus_width;
	
uint32_t dram_type;
	
uint32_t mclk;
	
uint32_t vram_size;

	
struct ast_fbdev *fbdev;

	
int fb_mtrr;

	struct {
		
struct drm_global_reference mem_global_ref;
		
struct ttm_bo_global_ref bo_global_ref;
		
struct ttm_bo_device bdev;
	} 
ttm;

	
struct drm_gem_object *cursor_cache;
	
uint64_t cursor_cache_gpu_addr;
	/* Acces to this cache is protected by the crtc->mutex of the only crtc
         * we have. */
	
struct ttm_bo_kmap_obj cache_kmap;
	
int next_cursor;
	
bool support_wide_screen;

	
enum ast_tx_chip tx_chip_type;
	
u8 dp501_maxclk;
	
u8 *dp501_fw_addr;
	
const struct firmware *dp501_fw;	/* dp501 fw */
};

int ast_driver_load(struct drm_device *dev, unsigned long flags);
int ast_driver_unload(struct drm_device *dev);

struct ast_gem_object;


#define AST_IO_AR_PORT_WRITE		(0x40)

#define AST_IO_MISC_PORT_WRITE		(0x42)

#define AST_IO_VGA_ENABLE_PORT		(0x43)

#define AST_IO_SEQ_PORT			(0x44)

#define AST_IO_DAC_INDEX_READ		(0x47)

#define AST_IO_DAC_INDEX_WRITE		(0x48)

#define AST_IO_DAC_DATA		        (0x49)

#define AST_IO_GR_PORT			(0x4E)

#define AST_IO_CRTC_PORT		(0x54)

#define AST_IO_INPUT_STATUS1_READ	(0x5A)

#define AST_IO_MISC_PORT_READ		(0x4C)


#define AST_IO_MM_OFFSET		(0x380)


#define __ast_read(x) \
static inline u##x ast_read##x(struct ast_private *ast, u32 reg) { \
u##x val = 0;\
val = ioread##x(ast->regs + reg); \
return val;\
}

__ast_read(8);
__ast_read(16);
__ast_read(32)


#define __ast_io_read(x) \
static inline u##x ast_io_read##x(struct ast_private *ast, u32 reg) { \
u##x val = 0;\
val = ioread##x(ast->ioregs + reg); \
return val;\
}

__ast_io_read(8);
__ast_io_read(16);
__ast_io_read(32);


#define __ast_write(x) \
static inline void ast_write##x(struct ast_private *ast, u32 reg, u##x val) {\
        iowrite##x(val, ast->regs + reg);\
        }

__ast_write(8);
__ast_write(16);
__ast_write(32);


#define __ast_io_write(x) \
static inline void ast_io_write##x(struct ast_private *ast, u32 reg, u##x val) {\
        iowrite##x(val, ast->ioregs + reg);\
        }

__ast_io_write(8);
__ast_io_write(16);

#undef __ast_io_write


static inline void ast_set_index_reg(struct ast_private *ast, uint32_t base, uint8_t index, uint8_t val) { ast_io_write16(ast, base, ((u16)val << 8) | index); }

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void ast_set_index_reg_mask(struct ast_private *ast, uint32_t base, uint8_t index, uint8_t mask, uint8_t val); uint8_t ast_get_index_reg(struct ast_private *ast, uint32_t base, uint8_t index); uint8_t ast_get_index_reg_mask(struct ast_private *ast, uint32_t base, uint8_t index, uint8_t mask);
static inline void ast_open_key(struct ast_private *ast) { ast_set_index_reg(ast, AST_IO_CRTC_PORT, 0x80, 0xA8); }

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#define AST_VIDMEM_SIZE_8M 0x00800000 #define AST_VIDMEM_SIZE_16M 0x01000000 #define AST_VIDMEM_SIZE_32M 0x02000000 #define AST_VIDMEM_SIZE_64M 0x04000000 #define AST_VIDMEM_SIZE_128M 0x08000000 #define AST_VIDMEM_DEFAULT_SIZE AST_VIDMEM_SIZE_8M #define AST_MAX_HWC_WIDTH 64 #define AST_MAX_HWC_HEIGHT 64 #define AST_HWC_SIZE (AST_MAX_HWC_WIDTH*AST_MAX_HWC_HEIGHT*2) #define AST_HWC_SIGNATURE_SIZE 32 #define AST_DEFAULT_HWC_NUM 2 /* define for signature structure */ #define AST_HWC_SIGNATURE_CHECKSUM 0x00 #define AST_HWC_SIGNATURE_SizeX 0x04 #define AST_HWC_SIGNATURE_SizeY 0x08 #define AST_HWC_SIGNATURE_X 0x0C #define AST_HWC_SIGNATURE_Y 0x10 #define AST_HWC_SIGNATURE_HOTSPOTX 0x14 #define AST_HWC_SIGNATURE_HOTSPOTY 0x18 struct ast_i2c_chan { struct i2c_adapter adapter; struct drm_device *dev; struct i2c_algo_bit_data bit; }; struct ast_connector { struct drm_connector base; struct ast_i2c_chan *i2c; }; struct ast_crtc { struct drm_crtc base; u8 lut_r[256], lut_g[256], lut_b[256]; struct drm_gem_object *cursor_bo; uint64_t cursor_addr; int cursor_width, cursor_height; u8 offset_x, offset_y; }; struct ast_encoder { struct drm_encoder base; }; struct ast_framebuffer { struct drm_framebuffer base; struct drm_gem_object *obj; }; struct ast_fbdev { struct drm_fb_helper helper; struct ast_framebuffer afb; void *sysram; int size; struct ttm_bo_kmap_obj mapping; int x1, y1, x2, y2; /* dirty rect */ spinlock_t dirty_lock; }; #define to_ast_crtc(x) container_of(x, struct ast_crtc, base) #define to_ast_connector(x) container_of(x, struct ast_connector, base) #define to_ast_encoder(x) container_of(x, struct ast_encoder, base) #define to_ast_framebuffer(x) container_of(x, struct ast_framebuffer, base) struct ast_vbios_stdtable { u8 misc; u8 seq[4]; u8 crtc[25]; u8 ar[20]; u8 gr[9]; }; struct ast_vbios_enhtable { u32 ht; u32 hde; u32 hfp; u32 hsync; u32 vt; u32 vde; u32 vfp; u32 vsync; u32 dclk_index; u32 flags; u32 refresh_rate; u32 refresh_rate_index; u32 mode_id; }; struct ast_vbios_dclk_info { u8 param1; u8 param2; u8 param3; }; struct ast_vbios_mode_info { struct ast_vbios_stdtable *std_table; struct ast_vbios_enhtable *enh_table; }; extern int ast_mode_init(struct drm_device *dev); extern void ast_mode_fini(struct drm_device *dev); int ast_framebuffer_init(struct drm_device *dev, struct ast_framebuffer *ast_fb, const struct drm_mode_fb_cmd2 *mode_cmd, struct drm_gem_object *obj); int ast_fbdev_init(struct drm_device *dev); void ast_fbdev_fini(struct drm_device *dev); void ast_fbdev_set_suspend(struct drm_device *dev, int state); void ast_fbdev_set_base(struct ast_private *ast, unsigned long gpu_addr); struct ast_bo { struct ttm_buffer_object bo; struct ttm_placement placement; struct ttm_bo_kmap_obj kmap; struct drm_gem_object gem; struct ttm_place placements[3]; int pin_count; }; #define gem_to_ast_bo(gobj) container_of((gobj), struct ast_bo, gem)
static inline struct ast_bo * ast_bo(struct ttm_buffer_object *bo) { return container_of(bo, struct ast_bo, bo); }

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#define to_ast_obj(x) container_of(x, struct ast_gem_object, base) #define AST_MM_ALIGN_SHIFT 4 #define AST_MM_ALIGN_MASK ((1 << AST_MM_ALIGN_SHIFT) - 1) extern int ast_dumb_create(struct drm_file *file, struct drm_device *dev, struct drm_mode_create_dumb *args); extern void ast_gem_free_object(struct drm_gem_object *obj); extern int ast_dumb_mmap_offset(struct drm_file *file, struct drm_device *dev, uint32_t handle, uint64_t *offset); #define DRM_FILE_PAGE_OFFSET (0x100000000ULL >> PAGE_SHIFT) int ast_mm_init(struct ast_private *ast); void ast_mm_fini(struct ast_private *ast); int ast_bo_create(struct drm_device *dev, int size, int align, uint32_t flags, struct ast_bo **pastbo); int ast_gem_create(struct drm_device *dev, u32 size, bool iskernel, struct drm_gem_object **obj); int ast_bo_pin(struct ast_bo *bo, u32 pl_flag, u64 *gpu_addr); int ast_bo_unpin(struct ast_bo *bo);
static inline int ast_bo_reserve(struct ast_bo *bo, bool no_wait) { int ret; ret = ttm_bo_reserve(&bo->bo, true, no_wait, NULL); if (ret) { if (ret != -ERESTARTSYS && ret != -EBUSY) DRM_ERROR("reserve failed %p\n", bo); return ret; } return 0; }

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thierry redingthierry reding11.54%133.33%
Total65100.00%3100.00%


static inline void ast_bo_unreserve(struct ast_bo *bo) { ttm_bo_unreserve(&bo->bo); }

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void ast_ttm_placement(struct ast_bo *bo, int domain); int ast_bo_push_sysram(struct ast_bo *bo); int ast_mmap(struct file *filp, struct vm_area_struct *vma); /* ast post */ void ast_enable_vga(struct drm_device *dev); void ast_enable_mmio(struct drm_device *dev); bool ast_is_vga_enabled(struct drm_device *dev); void ast_post_gpu(struct drm_device *dev); u32 ast_mindwm(struct ast_private *ast, u32 r); void ast_moutdwm(struct ast_private *ast, u32 r, u32 v); /* ast dp501 */ int ast_load_dp501_microcode(struct drm_device *dev); void ast_set_dp501_video_output(struct drm_device *dev, u8 mode); bool ast_launch_m68k(struct drm_device *dev); bool ast_backup_fw(struct drm_device *dev, u8 *addr, u32 size); bool ast_dp501_read_edid(struct drm_device *dev, u8 *ediddata); u8 ast_get_dp501_max_clk(struct drm_device *dev); void ast_init_3rdtx(struct drm_device *dev); #endif

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maarten lankhorstmaarten lankhorst654.55%16.25%
benjamin herrenschmidtbenjamin herrenschmidt372.59%212.50%
egbert eichegbert eich130.91%16.25%
david howellsdavid howells60.42%16.25%
daniel vetterdaniel vetter40.28%212.50%
christian koenigchristian koenig20.14%16.25%
thierry redingthierry reding10.07%16.25%
ville syrjalaville syrjala10.07%16.25%
Total1428100.00%16100.00%
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