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/*
* 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_encoder.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>
#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; /* must be first */
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_EH3,
G200_ER,
G200_EW3,
};
#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 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_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,
const struct drm_mode_fb_cmd2 *mode_cmd,
struct drm_gem_object *obj);
int mgag200_driver_load(struct drm_device *dev, unsigned long flags);
void 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, 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__ */
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