2 * Copyright 2010 Matt Turner.
3 * Copyright 2012 Red Hat
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.
9 * Authors: Matthew Garrett
13 #ifndef __MGAG200_DRV_H__
14 #define __MGAG200_DRV_H__
16 #include <video/vga.h>
18 #include <drm/drm_encoder.h>
19 #include <drm/drm_fb_helper.h>
20 #include <drm/ttm/ttm_bo_api.h>
21 #include <drm/ttm/ttm_bo_driver.h>
22 #include <drm/ttm/ttm_placement.h>
23 #include <drm/ttm/ttm_memory.h>
24 #include <drm/ttm/ttm_module.h>
26 #include <drm/drm_gem.h>
28 #include <linux/i2c.h>
29 #include <linux/i2c-algo-bit.h>
31 #include "mgag200_reg.h"
33 #define DRIVER_AUTHOR "Matthew Garrett"
35 #define DRIVER_NAME "mgag200"
36 #define DRIVER_DESC "MGA G200 SE"
37 #define DRIVER_DATE "20110418"
39 #define DRIVER_MAJOR 1
40 #define DRIVER_MINOR 0
41 #define DRIVER_PATCHLEVEL 0
43 #define MGAG200FB_CONN_LIMIT 1
45 #define RREG8(reg) ioread8(((void __iomem *)mdev->rmmio) + (reg))
46 #define WREG8(reg, v) iowrite8(v, ((void __iomem *)mdev->rmmio) + (reg))
47 #define RREG32(reg) ioread32(((void __iomem *)mdev->rmmio) + (reg))
48 #define WREG32(reg, v) iowrite32(v, ((void __iomem *)mdev->rmmio) + (reg))
50 #define ATTR_INDEX 0x1fc0
51 #define ATTR_DATA 0x1fc1
53 #define WREG_ATTR(reg, v) \
56 WREG8(ATTR_INDEX, reg); \
57 WREG8(ATTR_DATA, v); \
60 #define WREG_SEQ(reg, v) \
62 WREG8(MGAREG_SEQ_INDEX, reg); \
63 WREG8(MGAREG_SEQ_DATA, v); \
66 #define WREG_CRT(reg, v) \
68 WREG8(MGAREG_CRTC_INDEX, reg); \
69 WREG8(MGAREG_CRTC_DATA, v); \
73 #define WREG_ECRT(reg, v) \
75 WREG8(MGAREG_CRTCEXT_INDEX, reg); \
76 WREG8(MGAREG_CRTCEXT_DATA, v); \
79 #define GFX_INDEX 0x1fce
80 #define GFX_DATA 0x1fcf
82 #define WREG_GFX(reg, v) \
84 WREG8(GFX_INDEX, reg); \
88 #define DAC_INDEX 0x3c00
89 #define DAC_DATA 0x3c0a
91 #define WREG_DAC(reg, v) \
93 WREG8(DAC_INDEX, reg); \
97 #define MGA_MISC_OUT 0x1fc2
98 #define MGA_MISC_IN 0x1fcc
100 #define MGAG200_MAX_FB_HEIGHT 4096
101 #define MGAG200_MAX_FB_WIDTH 4096
103 #define MATROX_DPMS_CLEARED (-1)
105 #define to_mga_crtc(x) container_of(x, struct mga_crtc, base)
106 #define to_mga_encoder(x) container_of(x, struct mga_encoder, base)
107 #define to_mga_connector(x) container_of(x, struct mga_connector, base)
108 #define to_mga_framebuffer(x) container_of(x, struct mga_framebuffer, base)
110 struct mga_framebuffer {
111 struct drm_framebuffer base;
112 struct drm_gem_object *obj;
116 struct drm_fb_helper helper;
117 struct mga_framebuffer mfb;
120 struct ttm_bo_kmap_obj mapping;
121 int x1, y1, x2, y2; /* dirty rect */
122 spinlock_t dirty_lock;
126 struct drm_crtc base;
127 u8 lut_r[256], lut_g[256], lut_b[256];
132 struct mga_mode_info {
133 bool mode_config_initialized;
134 struct mga_crtc *crtc;
138 struct drm_encoder base;
143 struct mga_i2c_chan {
144 struct i2c_adapter adapter;
145 struct drm_device *dev;
146 struct i2c_algo_bit_data bit;
150 struct mga_connector {
151 struct drm_connector base;
152 struct mga_i2c_chan *i2c;
157 We have to have 2 buffers for the cursor to avoid occasional
158 corruption while switching cursor icons.
159 If either of these is NULL, then don't do hardware cursors, and
160 fall back to software.
162 struct mgag200_bo *pixels_1;
163 struct mgag200_bo *pixels_2;
164 u64 pixels_1_gpu_addr, pixels_2_gpu_addr;
165 /* The currently displayed icon, this points to one of pixels_1, or pixels_2 */
166 struct mgag200_bo *pixels_current;
167 /* The previously displayed icon */
168 struct mgag200_bo *pixels_prev;
172 resource_size_t vram_size;
173 resource_size_t vram_base;
174 resource_size_t vram_window;
188 #define IS_G200_SE(mdev) (mdev->type == G200_SE_A || mdev->type == G200_SE_B)
191 struct drm_device *dev;
194 resource_size_t rmmio_base;
195 resource_size_t rmmio_size;
199 struct mga_mode_info mode_info;
201 struct mga_fbdev *mfbdev;
202 struct mga_cursor cursor;
208 struct drm_display_mode mode;
215 struct drm_global_reference mem_global_ref;
216 struct ttm_bo_global_ref bo_global_ref;
217 struct ttm_bo_device bdev;
220 /* SE model number stored in reg 0x1e24 */
226 struct ttm_buffer_object bo;
227 struct ttm_placement placement;
228 struct ttm_bo_kmap_obj kmap;
229 struct drm_gem_object gem;
230 struct ttm_place placements[3];
233 #define gem_to_mga_bo(gobj) container_of((gobj), struct mgag200_bo, gem)
235 static inline struct mgag200_bo *
236 mgag200_bo(struct ttm_buffer_object *bo)
238 return container_of(bo, struct mgag200_bo, bo);
241 void mga_crtc_fb_gamma_set(struct drm_crtc *crtc, u16 red, u16 green,
242 u16 blue, int regno);
243 void mga_crtc_fb_gamma_get(struct drm_crtc *crtc, u16 *red, u16 *green,
244 u16 *blue, int regno);
247 int mgag200_modeset_init(struct mga_device *mdev);
248 void mgag200_modeset_fini(struct mga_device *mdev);
251 int mgag200_fbdev_init(struct mga_device *mdev);
252 void mgag200_fbdev_fini(struct mga_device *mdev);
255 int mgag200_framebuffer_init(struct drm_device *dev,
256 struct mga_framebuffer *mfb,
257 const struct drm_mode_fb_cmd2 *mode_cmd,
258 struct drm_gem_object *obj);
261 int mgag200_driver_load(struct drm_device *dev, unsigned long flags);
262 void mgag200_driver_unload(struct drm_device *dev);
263 int mgag200_gem_create(struct drm_device *dev,
264 u32 size, bool iskernel,
265 struct drm_gem_object **obj);
266 int mgag200_dumb_create(struct drm_file *file,
267 struct drm_device *dev,
268 struct drm_mode_create_dumb *args);
269 void mgag200_gem_free_object(struct drm_gem_object *obj);
271 mgag200_dumb_mmap_offset(struct drm_file *file,
272 struct drm_device *dev,
276 struct mga_i2c_chan *mgag200_i2c_create(struct drm_device *dev);
277 void mgag200_i2c_destroy(struct mga_i2c_chan *i2c);
279 #define DRM_FILE_PAGE_OFFSET (0x100000000ULL >> PAGE_SHIFT)
280 void mgag200_ttm_placement(struct mgag200_bo *bo, int domain);
282 static inline int mgag200_bo_reserve(struct mgag200_bo *bo, bool no_wait)
286 ret = ttm_bo_reserve(&bo->bo, true, no_wait, NULL);
288 if (ret != -ERESTARTSYS && ret != -EBUSY)
289 DRM_ERROR("reserve failed %p\n", bo);
295 static inline void mgag200_bo_unreserve(struct mgag200_bo *bo)
297 ttm_bo_unreserve(&bo->bo);
300 int mgag200_bo_create(struct drm_device *dev, int size, int align,
301 uint32_t flags, struct mgag200_bo **pastbo);
302 int mgag200_mm_init(struct mga_device *mdev);
303 void mgag200_mm_fini(struct mga_device *mdev);
304 int mgag200_mmap(struct file *filp, struct vm_area_struct *vma);
305 int mgag200_bo_pin(struct mgag200_bo *bo, u32 pl_flag, u64 *gpu_addr);
306 int mgag200_bo_unpin(struct mgag200_bo *bo);
307 int mgag200_bo_push_sysram(struct mgag200_bo *bo);
308 /* mgag200_cursor.c */
309 int mga_crtc_cursor_set(struct drm_crtc *crtc, struct drm_file *file_priv,
310 uint32_t handle, uint32_t width, uint32_t height);
311 int mga_crtc_cursor_move(struct drm_crtc *crtc, int x, int y);
313 #endif /* __MGAG200_DRV_H__ */