[deliverable/linux.git] / drivers / gpu / drm / mgag200 / mgag200_drv.h

/*
 * Copyright 2010 Matt Turner.
 * Copyright 2012 Red Hat 
 *
 * This file is subject to the terms and conditions of the GNU General
 * Public License version 2. See the file COPYING in the main
 * directory of this archive for more details.
 *
 * Authors: Matthew Garrett
 * 	    Matt Turner
 *	    Dave Airlie
 */
#ifndef __MGAG200_DRV_H__
#define __MGAG200_DRV_H__

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

#include "mgag200_reg.h"

#define DRIVER_AUTHOR		"Matthew Garrett"

#define DRIVER_NAME		"mgag200"
#define DRIVER_DESC		"MGA G200 SE"
#define DRIVER_DATE		"20110418"

#define DRIVER_MAJOR		1
#define DRIVER_MINOR		0
#define DRIVER_PATCHLEVEL	0

#define MGAG200FB_CONN_LIMIT 1

#define RREG8(reg) ioread8(((void __iomem *)mdev->rmmio) + (reg))
#define WREG8(reg, v) iowrite8(v, ((void __iomem *)mdev->rmmio) + (reg))
#define RREG32(reg) ioread32(((void __iomem *)mdev->rmmio) + (reg))
#define WREG32(reg, v) iowrite32(v, ((void __iomem *)mdev->rmmio) + (reg))

#define ATTR_INDEX 0x1fc0
#define ATTR_DATA 0x1fc1

#define WREG_ATTR(reg, v)					\
	do {							\
		RREG8(0x1fda);					\
		WREG8(ATTR_INDEX, reg);				\
		WREG8(ATTR_DATA, v);				\
	} while (0)						\

#define WREG_SEQ(reg, v)					\
	do {							\
		WREG8(MGAREG_SEQ_INDEX, reg);			\
		WREG8(MGAREG_SEQ_DATA, v);			\
	} while (0)						\

#define WREG_CRT(reg, v)					\
	do {							\
		WREG8(MGAREG_CRTC_INDEX, reg);			\
		WREG8(MGAREG_CRTC_DATA, v);			\
	} while (0)						\


#define WREG_ECRT(reg, v)					\
	do {							\
		WREG8(MGAREG_CRTCEXT_INDEX, reg);				\
		WREG8(MGAREG_CRTCEXT_DATA, v);				\
	} while (0)						\

#define GFX_INDEX 0x1fce
#define GFX_DATA 0x1fcf

#define WREG_GFX(reg, v)					\
	do {							\
		WREG8(GFX_INDEX, reg);				\
		WREG8(GFX_DATA, v);				\
	} while (0)						\

#define DAC_INDEX 0x3c00
#define DAC_DATA 0x3c0a

#define WREG_DAC(reg, v)					\
	do {							\
		WREG8(DAC_INDEX, reg);				\
		WREG8(DAC_DATA, v);				\
	} while (0)						\

#define MGA_MISC_OUT 0x1fc2
#define MGA_MISC_IN 0x1fcc

#define MGAG200_MAX_FB_HEIGHT 4096
#define MGAG200_MAX_FB_WIDTH 4096

#define MATROX_DPMS_CLEARED (-1)

#define to_mga_crtc(x) container_of(x, struct mga_crtc, base)
#define to_mga_encoder(x) container_of(x, struct mga_encoder, base)
#define to_mga_connector(x) container_of(x, struct mga_connector, base)
#define to_mga_framebuffer(x) container_of(x, struct mga_framebuffer, base)

struct mga_framebuffer {
	struct drm_framebuffer base;
	struct drm_gem_object *obj;
};

struct mga_fbdev {
	struct drm_fb_helper helper;
	struct mga_framebuffer mfb;
	void *sysram;
	int size;
	struct ttm_bo_kmap_obj mapping;
	int x1, y1, x2, y2; /* dirty rect */
	spinlock_t dirty_lock;
};

struct mga_crtc {
	struct drm_crtc base;
	u8 lut_r[256], lut_g[256], lut_b[256];
	int last_dpms;
	bool enabled;
};

struct mga_mode_info {
	bool mode_config_initialized;
	struct mga_crtc *crtc;
};

struct mga_encoder {
	struct drm_encoder base;
	int last_dpms;
};


struct mga_i2c_chan {
	struct i2c_adapter adapter;
	struct drm_device *dev;
	struct i2c_algo_bit_data bit;
	int data, clock;
};

struct mga_connector {
	struct drm_connector base;
	struct mga_i2c_chan *i2c;
};

struct mga_cursor {
	/*
	   We have to have 2 buffers for the cursor to avoid occasional
	   corruption while switching cursor icons.
	   If either of these is NULL, then don't do hardware cursors, and
	   fall back to software.
	*/
	struct mgag200_bo *pixels_1;
	struct mgag200_bo *pixels_2;
	u64 pixels_1_gpu_addr, pixels_2_gpu_addr;
	/* The currently displayed icon, this points to one of pixels_1, or pixels_2 */
	struct mgag200_bo *pixels_current;
	/* The previously displayed icon */
	struct mgag200_bo *pixels_prev;
};

struct mga_mc {
	resource_size_t			vram_size;
	resource_size_t			vram_base;
	resource_size_t			vram_window;
};

enum mga_type {
	G200_SE_A,
	G200_SE_B,
	G200_WB,
	G200_EV,
	G200_EH,
	G200_ER,
};

#define IS_G200_SE(mdev) (mdev->type == G200_SE_A || mdev->type == G200_SE_B)

struct mga_device {
	struct drm_device		*dev;
	unsigned long			flags;

	resource_size_t			rmmio_base;
	resource_size_t			rmmio_size;
	void __iomem			*rmmio;

	struct mga_mc			mc;
	struct mga_mode_info		mode_info;

	struct mga_fbdev *mfbdev;
	struct mga_cursor cursor;

	bool				suspended;
	int				num_crtc;
	enum mga_type			type;
	int				has_sdram;
	struct drm_display_mode		mode;

	int bpp_shifts[4];

	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;

	/* SE model number stored in reg 0x1e24 */
	u32 unique_rev_id;
};


struct mgag200_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_mga_bo(gobj) container_of((gobj), struct mgag200_bo, gem)

static inline struct mgag200_bo *
mgag200_bo(struct ttm_buffer_object *bo)
{
	return container_of(bo, struct mgag200_bo, bo);
}
				/* mgag200_crtc.c */
void mga_crtc_fb_gamma_set(struct drm_crtc *crtc, u16 red, u16 green,
			     u16 blue, int regno);
void mga_crtc_fb_gamma_get(struct drm_crtc *crtc, u16 *red, u16 *green,
			     u16 *blue, int regno);

				/* mgag200_mode.c */
int mgag200_modeset_init(struct mga_device *mdev);
void mgag200_modeset_fini(struct mga_device *mdev);

				/* mgag200_fb.c */
int mgag200_fbdev_init(struct mga_device *mdev);
void mgag200_fbdev_fini(struct mga_device *mdev);

				/* mgag200_main.c */
int mgag200_framebuffer_init(struct drm_device *dev,
			     struct mga_framebuffer *mfb,
			     struct drm_mode_fb_cmd2 *mode_cmd,
			     struct drm_gem_object *obj);


int mgag200_driver_load(struct drm_device *dev, unsigned long flags);
int mgag200_driver_unload(struct drm_device *dev);
int mgag200_gem_create(struct drm_device *dev,
		   u32 size, bool iskernel,
		       struct drm_gem_object **obj);
int mgag200_dumb_create(struct drm_file *file,
			struct drm_device *dev,
			struct drm_mode_create_dumb *args);
void mgag200_gem_free_object(struct drm_gem_object *obj);
int
mgag200_dumb_mmap_offset(struct drm_file *file,
			 struct drm_device *dev,
			 uint32_t handle,
			 uint64_t *offset);
				/* mgag200_i2c.c */
struct mga_i2c_chan *mgag200_i2c_create(struct drm_device *dev);
void mgag200_i2c_destroy(struct mga_i2c_chan *i2c);

#define DRM_FILE_PAGE_OFFSET (0x100000000ULL >> PAGE_SHIFT)
void mgag200_ttm_placement(struct mgag200_bo *bo, int domain);

static inline int mgag200_bo_reserve(struct mgag200_bo *bo, bool no_wait)
{
	int ret;

	ret = ttm_bo_reserve(&bo->bo, true, no_wait, false, NULL);
	if (ret) {
		if (ret != -ERESTARTSYS && ret != -EBUSY)
			DRM_ERROR("reserve failed %p\n", bo);
		return ret;
	}
	return 0;
}

static inline void mgag200_bo_unreserve(struct mgag200_bo *bo)
{
	ttm_bo_unreserve(&bo->bo);
}

int mgag200_bo_create(struct drm_device *dev, int size, int align,
		      uint32_t flags, struct mgag200_bo **pastbo);
int mgag200_mm_init(struct mga_device *mdev);
void mgag200_mm_fini(struct mga_device *mdev);
int mgag200_mmap(struct file *filp, struct vm_area_struct *vma);
int mgag200_bo_pin(struct mgag200_bo *bo, u32 pl_flag, u64 *gpu_addr);
int mgag200_bo_unpin(struct mgag200_bo *bo);
int mgag200_bo_push_sysram(struct mgag200_bo *bo);
			   /* mgag200_cursor.c */
int mga_crtc_cursor_set(struct drm_crtc *crtc, struct drm_file *file_priv,
						uint32_t handle, uint32_t width, uint32_t height);
int mga_crtc_cursor_move(struct drm_crtc *crtc, int x, int y);

#endif				/* __MGAG200_DRV_H__ */
Commit	Line	Data
414c4531 DA	1	/*
	2	* Copyright 2010 Matt Turner.
	3	* Copyright 2012 Red Hat
	4	*
	5	* This file is subject to the terms and conditions of the GNU General
	6	* Public License version 2. See the file COPYING in the main
	7	* directory of this archive for more details.
	8	*
	9	* Authors: Matthew Garrett
	10	* Matt Turner
	11	* Dave Airlie
	12	*/
	13	#ifndef __MGAG200_DRV_H__
	14	#define __MGAG200_DRV_H__
	15
	16	#include <video/vga.h>
	17
760285e7 DH	18	#include <drm/drm_fb_helper.h>
	19	#include <drm/ttm/ttm_bo_api.h>
	20	#include <drm/ttm/ttm_bo_driver.h>
	21	#include <drm/ttm/ttm_placement.h>
	22	#include <drm/ttm/ttm_memory.h>
	23	#include <drm/ttm/ttm_module.h>
414c4531 DA	24
	25	#include <linux/i2c.h>
	26	#include <linux/i2c-algo-bit.h>
	27
	28	#include "mgag200_reg.h"
	29
	30	#define DRIVER_AUTHOR "Matthew Garrett"
	31
	32	#define DRIVER_NAME "mgag200"
	33	#define DRIVER_DESC "MGA G200 SE"
	34	#define DRIVER_DATE "20110418"
	35
	36	#define DRIVER_MAJOR 1
	37	#define DRIVER_MINOR 0
	38	#define DRIVER_PATCHLEVEL 0
	39
	40	#define MGAG200FB_CONN_LIMIT 1
	41
	42	#define RREG8(reg) ioread8(((void __iomem *)mdev->rmmio) + (reg))
	43	#define WREG8(reg, v) iowrite8(v, ((void __iomem *)mdev->rmmio) + (reg))
	44	#define RREG32(reg) ioread32(((void __iomem *)mdev->rmmio) + (reg))
	45	#define WREG32(reg, v) iowrite32(v, ((void __iomem *)mdev->rmmio) + (reg))
	46
	47	#define ATTR_INDEX 0x1fc0
	48	#define ATTR_DATA 0x1fc1
	49
	50	#define WREG_ATTR(reg, v) \
	51	do { \
	52	RREG8(0x1fda); \
	53	WREG8(ATTR_INDEX, reg); \
	54	WREG8(ATTR_DATA, v); \
	55	} while (0) \
	56
	57	#define WREG_SEQ(reg, v) \
	58	do { \
	59	WREG8(MGAREG_SEQ_INDEX, reg); \
	60	WREG8(MGAREG_SEQ_DATA, v); \
	61	} while (0) \
	62
	63	#define WREG_CRT(reg, v) \
	64	do { \
	65	WREG8(MGAREG_CRTC_INDEX, reg); \
	66	WREG8(MGAREG_CRTC_DATA, v); \
	67	} while (0) \
	68
	69
	70	#define WREG_ECRT(reg, v) \
	71	do { \
	72	WREG8(MGAREG_CRTCEXT_INDEX, reg); \
	73	WREG8(MGAREG_CRTCEXT_DATA, v); \
	74	} while (0) \
	75
	76	#define GFX_INDEX 0x1fce
	77	#define GFX_DATA 0x1fcf
	78
	79	#define WREG_GFX(reg, v) \
	80	do { \
	81	WREG8(GFX_INDEX, reg); \
	82	WREG8(GFX_DATA, v); \
	83	} while (0) \
	84
	85	#define DAC_INDEX 0x3c00
	86	#define DAC_DATA 0x3c0a
	87
88	#define WREG_DAC(reg, v) \
89	do { \
90	WREG8(DAC_INDEX, reg); \
91	WREG8(DAC_DATA, v); \
92	} while (0) \
93
94	#define MGA_MISC_OUT 0x1fc2
95	#define MGA_MISC_IN 0x1fcc
96
97	#define MGAG200_MAX_FB_HEIGHT 4096
98	#define MGAG200_MAX_FB_WIDTH 4096
99
100	#define MATROX_DPMS_CLEARED (-1)
101
102	#define to_mga_crtc(x) container_of(x, struct mga_crtc, base)
103	#define to_mga_encoder(x) container_of(x, struct mga_encoder, base)
104	#define to_mga_connector(x) container_of(x, struct mga_connector, base)
105	#define to_mga_framebuffer(x) container_of(x, struct mga_framebuffer, base)
106
107	struct mga_framebuffer {
108	struct drm_framebuffer base;
109	struct drm_gem_object *obj;
110	};
111
112	struct mga_fbdev {
113	struct drm_fb_helper helper;
114	struct mga_framebuffer mfb;
414c4531 DA	115	void *sysram;
	116	int size;
	117	struct ttm_bo_kmap_obj mapping;
64171959 DA	118	int x1, y1, x2, y2; /* dirty rect */
64171959 DA	119	spinlock_t dirty_lock;
414c4531 DA	120	};
	121
	122	struct mga_crtc {
	123	struct drm_crtc base;
	124	u8 lut_r[256], lut_g[256], lut_b[256];
	125	int last_dpms;
	126	bool enabled;
	127	};
	128
	129	struct mga_mode_info {
	130	bool mode_config_initialized;
	131	struct mga_crtc *crtc;
	132	};
	133
	134	struct mga_encoder {
	135	struct drm_encoder base;
	136	int last_dpms;
	137	};
	138
	139
	140	struct mga_i2c_chan {
	141	struct i2c_adapter adapter;
	142	struct drm_device *dev;
	143	struct i2c_algo_bit_data bit;
	144	int data, clock;
	145	};
	146
	147	struct mga_connector {
	148	struct drm_connector base;
	149	struct mga_i2c_chan *i2c;
	150	};
	151
a080db9f CH	152	struct mga_cursor {
	153	/*
	154	We have to have 2 buffers for the cursor to avoid occasional
	155	corruption while switching cursor icons.
	156	If either of these is NULL, then don't do hardware cursors, and
	157	fall back to software.
	158	*/
	159	struct mgag200_bo *pixels_1;
	160	struct mgag200_bo *pixels_2;
	161	u64 pixels_1_gpu_addr, pixels_2_gpu_addr;
	162	/* The currently displayed icon, this points to one of pixels_1, or pixels_2 */
	163	struct mgag200_bo *pixels_current;
	164	/* The previously displayed icon */
	165	struct mgag200_bo *pixels_prev;
	166	};
414c4531 DA	167
	168	struct mga_mc {
	169	resource_size_t vram_size;
	170	resource_size_t vram_base;
	171	resource_size_t vram_window;
	172	};
	173
	174	enum mga_type {
	175	G200_SE_A,
	176	G200_SE_B,
	177	G200_WB,
	178	G200_EV,
	179	G200_EH,
	180	G200_ER,
	181	};
	182
	183	#define IS_G200_SE(mdev) (mdev->type == G200_SE_A \|\| mdev->type == G200_SE_B)
	184
	185	struct mga_device {
	186	struct drm_device *dev;
	187	unsigned long flags;
	188
	189	resource_size_t rmmio_base;
	190	resource_size_t rmmio_size;
	191	void __iomem *rmmio;
	192
414c4531 DA	193	struct mga_mc mc;
	194	struct mga_mode_info mode_info;
	195
	196	struct mga_fbdev *mfbdev;
a080db9f	197	struct mga_cursor cursor;
414c4531 DA	198
	199	bool suspended;
	200	int num_crtc;
	201	enum mga_type type;
	202	int has_sdram;
	203	struct drm_display_mode mode;
	204
	205	int bpp_shifts[4];
	206
	207	int fb_mtrr;
	208
	209	struct {
	210	struct drm_global_reference mem_global_ref;
	211	struct ttm_bo_global_ref bo_global_ref;
	212	struct ttm_bo_device bdev;
414c4531 DA	213	} ttm;
414c4531 DA	214
abbee623 JL	215	/* SE model number stored in reg 0x1e24 */
abbee623 JL	216	u32 unique_rev_id;
414c4531 DA	217	};
	218
	219
	220	struct mgag200_bo {
	221	struct ttm_buffer_object bo;
	222	struct ttm_placement placement;
	223	struct ttm_bo_kmap_obj kmap;
	224	struct drm_gem_object gem;
f1217ed0	225	struct ttm_place placements[3];
414c4531 DA	226	int pin_count;
	227	};
	228	#define gem_to_mga_bo(gobj) container_of((gobj), struct mgag200_bo, gem)
	229
	230	static inline struct mgag200_bo *
	231	mgag200_bo(struct ttm_buffer_object *bo)
	232	{
	233	return container_of(bo, struct mgag200_bo, bo);
	234	}
715f59cc	235	/* mgag200_crtc.c */
414c4531 DA	236	void mga_crtc_fb_gamma_set(struct drm_crtc *crtc, u16 red, u16 green,
	237	u16 blue, int regno);
	238	void mga_crtc_fb_gamma_get(struct drm_crtc crtc, u16 red, u16 *green,
	239	u16 *blue, int regno);
	240
	241	/* mgag200_mode.c */
	242	int mgag200_modeset_init(struct mga_device *mdev);
	243	void mgag200_modeset_fini(struct mga_device *mdev);
	244
715f59cc	245	/* mgag200_fb.c */
414c4531 DA	246	int mgag200_fbdev_init(struct mga_device *mdev);
	247	void mgag200_fbdev_fini(struct mga_device *mdev);
	248
	249	/* mgag200_main.c */
	250	int mgag200_framebuffer_init(struct drm_device *dev,
	251	struct mga_framebuffer *mfb,
	252	struct drm_mode_fb_cmd2 *mode_cmd,
	253	struct drm_gem_object *obj);
	254
	255
	256	int mgag200_driver_load(struct drm_device *dev, unsigned long flags);
	257	int mgag200_driver_unload(struct drm_device *dev);
	258	int mgag200_gem_create(struct drm_device *dev,
	259	u32 size, bool iskernel,
	260	struct drm_gem_object **obj);
414c4531 DA	261	int mgag200_dumb_create(struct drm_file *file,
	262	struct drm_device *dev,
	263	struct drm_mode_create_dumb *args);
414c4531 DA	264	void mgag200_gem_free_object(struct drm_gem_object *obj);
	265	int
	266	mgag200_dumb_mmap_offset(struct drm_file *file,
	267	struct drm_device *dev,
	268	uint32_t handle,
	269	uint64_t *offset);
715f59cc	270	/* mgag200_i2c.c */
414c4531 DA	271	struct mga_i2c_chan mgag200_i2c_create(struct drm_device dev);
	272	void mgag200_i2c_destroy(struct mga_i2c_chan *i2c);
	273
	274	#define DRM_FILE_PAGE_OFFSET (0x100000000ULL >> PAGE_SHIFT)
	275	void mgag200_ttm_placement(struct mgag200_bo *bo, int domain);
	276
06597ce8 ML	277	static inline int mgag200_bo_reserve(struct mgag200_bo *bo, bool no_wait)
	278	{
	279	int ret;
	280
ee3939e0	281	ret = ttm_bo_reserve(&bo->bo, true, no_wait, false, NULL);
06597ce8 ML	282	if (ret) {
	283	if (ret != -ERESTARTSYS && ret != -EBUSY)
	284	DRM_ERROR("reserve failed %p\n", bo);
	285	return ret;
	286	}
	287	return 0;
	288	}
	289
	290	static inline void mgag200_bo_unreserve(struct mgag200_bo *bo)
	291	{
	292	ttm_bo_unreserve(&bo->bo);
	293	}
	294
414c4531 DA	295	int mgag200_bo_create(struct drm_device *dev, int size, int align,
	296	uint32_t flags, struct mgag200_bo **pastbo);
	297	int mgag200_mm_init(struct mga_device *mdev);
	298	void mgag200_mm_fini(struct mga_device *mdev);
	299	int mgag200_mmap(struct file filp, struct vm_area_struct vma);
	300	int mgag200_bo_pin(struct mgag200_bo bo, u32 pl_flag, u64 gpu_addr);
	301	int mgag200_bo_unpin(struct mgag200_bo *bo);
	302	int mgag200_bo_push_sysram(struct mgag200_bo *bo);
a080db9f CH	303	/* mgag200_cursor.c */
	304	int mga_crtc_cursor_set(struct drm_crtc crtc, struct drm_file file_priv,
	305	uint32_t handle, uint32_t width, uint32_t height);
	306	int mga_crtc_cursor_move(struct drm_crtc *crtc, int x, int y);
	307
414c4531	308	#endif /* __MGAG200_DRV_H__ */