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2023-12-11 6778948f9de86c3cfaf36725a7c87dcff9ba247f 
 kernel/drivers/gpu/drm/mgag200/mgag200_drv.h
....@@ -1,10 +1,7 @@
1
+/* SPDX-License-Identifier: GPL-2.0-only */
12 /*
23  * 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.
4
+ * Copyright 2012 Red Hat
85  *
96  * Authors: Matthew Garrett
107  * 	    Matt Turner
....@@ -13,20 +10,16 @@
1310 #ifndef __MGAG200_DRV_H__
1411 #define __MGAG200_DRV_H__
1512 
13
+#include <linux/i2c-algo-bit.h>
14
+#include <linux/i2c.h>
15
+
1616 #include <video/vga.h>
1717 
1818 #include <drm/drm_encoder.h>
1919 #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>
25
-
2620 #include <drm/drm_gem.h>
27
-
28
-#include <linux/i2c.h>
29
-#include <linux/i2c-algo-bit.h>
21
+#include <drm/drm_gem_shmem_helper.h>
22
+#include <drm/drm_simple_kms_helper.h>
3023 
3124 #include "mgag200_reg.h"
3225 
....@@ -40,15 +33,31 @@
4033 #define DRIVER_MINOR		0
4134 #define DRIVER_PATCHLEVEL	0
4235 
43
-#define MGAG200FB_CONN_LIMIT 1
44
-
4536 #define RREG8(reg) ioread8(((void __iomem *)mdev->rmmio) + (reg))
4637 #define WREG8(reg, v) iowrite8(v, ((void __iomem *)mdev->rmmio) + (reg))
4738 #define RREG32(reg) ioread32(((void __iomem *)mdev->rmmio) + (reg))
4839 #define WREG32(reg, v) iowrite32(v, ((void __iomem *)mdev->rmmio) + (reg))
4940 
41
+#define MGA_BIOS_OFFSET		0x7ffc
42
+
5043 #define ATTR_INDEX 0x1fc0
5144 #define ATTR_DATA 0x1fc1
45
+
46
+#define WREG_MISC(v)						\
47
+	WREG8(MGA_MISC_OUT, v)
48
+
49
+#define RREG_MISC(v)						\
50
+	((v) = RREG8(MGA_MISC_IN))
51
+
52
+#define WREG_MISC_MASKED(v, mask)				\
53
+	do {							\
54
+		u8 misc_;					\
55
+		u8 mask_ = (mask);				\
56
+		RREG_MISC(misc_);				\
57
+		misc_ &= ~mask_;				\
58
+		misc_ |= ((v) & mask_);				\
59
+		WREG_MISC(misc_);				\
60
+	} while (0)
5261 
5362 #define WREG_ATTR(reg, v)					\
5463 	do {							\
....@@ -57,10 +66,22 @@
5766 		WREG8(ATTR_DATA, v);				\
5867 	} while (0)						\
5968 
69
+#define RREG_SEQ(reg, v)					\
70
+	do {							\
71
+		WREG8(MGAREG_SEQ_INDEX, reg);			\
72
+		v = RREG8(MGAREG_SEQ_DATA);			\
73
+	} while (0)						\
74
+
6075 #define WREG_SEQ(reg, v)					\
6176 	do {							\
6277 		WREG8(MGAREG_SEQ_INDEX, reg);			\
6378 		WREG8(MGAREG_SEQ_DATA, v);			\
79
+	} while (0)						\
80
+
81
+#define RREG_CRT(reg, v)					\
82
+	do {							\
83
+		WREG8(MGAREG_CRTC_INDEX, reg);			\
84
+		v = RREG8(MGAREG_CRTC_DATA);			\
6485 	} while (0)						\
6586 
6687 #define WREG_CRT(reg, v)					\
....@@ -69,6 +90,11 @@
6990 		WREG8(MGAREG_CRTC_DATA, v);			\
7091 	} while (0)						\
7192 
93
+#define RREG_ECRT(reg, v)					\
94
+	do {							\
95
+		WREG8(MGAREG_CRTCEXT_INDEX, reg);		\
96
+		v = RREG8(MGAREG_CRTCEXT_DATA);			\
97
+	} while (0)						\
7298 
7399 #define WREG_ECRT(reg, v)					\
74100 	do {							\
....@@ -100,45 +126,7 @@
100126 #define MGAG200_MAX_FB_HEIGHT 4096
101127 #define MGAG200_MAX_FB_WIDTH 4096
102128 
103
-#define MATROX_DPMS_CLEARED (-1)
104
-
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)
107129 #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)
109
-
110
-struct mga_framebuffer {
111
-	struct drm_framebuffer base;
112
-	struct drm_gem_object *obj;
113
-};
114
-
115
-struct mga_fbdev {
116
-	struct drm_fb_helper helper;
117
-	struct mga_framebuffer mfb;
118
-	void *sysram;
119
-	int size;
120
-	struct ttm_bo_kmap_obj mapping;
121
-	int x1, y1, x2, y2; /* dirty rect */
122
-	spinlock_t dirty_lock;
123
-};
124
-
125
-struct mga_crtc {
126
-	struct drm_crtc base;
127
-	u8 lut_r[256], lut_g[256], lut_b[256];
128
-	int last_dpms;
129
-	bool enabled;
130
-};
131
-
132
-struct mga_mode_info {
133
-	bool mode_config_initialized;
134
-	struct mga_crtc *crtc;
135
-};
136
-
137
-struct mga_encoder {
138
-	struct drm_encoder base;
139
-	int last_dpms;
140
-};
141
-
142130 
143131 struct mga_i2c_chan {
144132 	struct i2c_adapter adapter;
....@@ -152,22 +140,6 @@
152140 	struct mga_i2c_chan *i2c;
153141 };
154142 
155
-struct mga_cursor {
156
-	/*
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.
161
-	*/
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;
169
-};
170
-
171143 struct mga_mc {
172144 	resource_size_t			vram_size;
173145 	resource_size_t			vram_base;
....@@ -175,6 +147,8 @@
175147 };
176148 
177149 enum mga_type {
150
+	G200_PCI,
151
+	G200_AGP,
178152 	G200_SE_A,
179153 	G200_SE_B,
180154 	G200_WB,
....@@ -185,10 +159,16 @@
185159 	G200_EW3,
186160 };
187161 
162
+/* HW does not handle 'startadd' field correct. */
163
+#define MGAG200_FLAG_HW_BUG_NO_STARTADD	(1ul << 8)
164
+
165
+#define MGAG200_TYPE_MASK	(0x000000ff)
166
+#define MGAG200_FLAG_MASK	(0x00ffff00)
167
+
188168 #define IS_G200_SE(mdev) (mdev->type == G200_SE_A || mdev->type == G200_SE_B)
189169 
190170 struct mga_device {
191
-	struct drm_device		*dev;
171
+	struct drm_device		base;
192172 	unsigned long			flags;
193173 
194174 	resource_size_t			rmmio_base;
....@@ -196,113 +176,58 @@
196176 	void __iomem			*rmmio;
197177 
198178 	struct mga_mc			mc;
199
-	struct mga_mode_info		mode_info;
200179 
201
-	struct mga_fbdev *mfbdev;
202
-	struct mga_cursor cursor;
180
+	void __iomem			*vram;
181
+	size_t				vram_fb_available;
203182 
204
-	bool				suspended;
205
-	int				num_crtc;
206183 	enum mga_type			type;
207
-	int				has_sdram;
208
-	struct drm_display_mode		mode;
209184 
210185 	int bpp_shifts[4];
211186 
212187 	int fb_mtrr;
213188 
214
-	struct {
215
-		struct drm_global_reference mem_global_ref;
216
-		struct ttm_bo_global_ref bo_global_ref;
217
-		struct ttm_bo_device bdev;
218
-	} ttm;
189
+	union {
190
+		struct {
191
+			long ref_clk;
192
+			long pclk_min;
193
+			long pclk_max;
194
+		} g200;
195
+		struct {
196
+			/* SE model number stored in reg 0x1e24 */
197
+			u32 unique_rev_id;
198
+		} g200se;
199
+	} model;
219200 
220
-	/* SE model number stored in reg 0x1e24 */
221
-	u32 unique_rev_id;
201
+
202
+	struct mga_connector connector;
203
+	struct drm_simple_display_pipe display_pipe;
222204 };
223205 
224
-
225
-struct mgag200_bo {
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];
231
-	int pin_count;
232
-};
233
-#define gem_to_mga_bo(gobj) container_of((gobj), struct mgag200_bo, gem)
234
-
235
-static inline struct mgag200_bo *
236
-mgag200_bo(struct ttm_buffer_object *bo)
206
+static inline struct mga_device *to_mga_device(struct drm_device *dev)
237207 {
238
-	return container_of(bo, struct mgag200_bo, bo);
208
+	return container_of(dev, struct mga_device, base);
209
+}
210
+
211
+static inline enum mga_type
212
+mgag200_type_from_driver_data(kernel_ulong_t driver_data)
213
+{
214
+	return (enum mga_type)(driver_data & MGAG200_TYPE_MASK);
215
+}
216
+
217
+static inline unsigned long
218
+mgag200_flags_from_driver_data(kernel_ulong_t driver_data)
219
+{
220
+	return driver_data & MGAG200_FLAG_MASK;
239221 }
240222 
241223 				/* mgag200_mode.c */
242224 int mgag200_modeset_init(struct mga_device *mdev);
243
-void mgag200_modeset_fini(struct mga_device *mdev);
244225 
245
-				/* mgag200_fb.c */
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
-			     const 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
-void 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);
261
-int mgag200_dumb_create(struct drm_file *file,
262
-			struct drm_device *dev,
263
-			struct drm_mode_create_dumb *args);
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);
270226 				/* mgag200_i2c.c */
271227 struct mga_i2c_chan *mgag200_i2c_create(struct drm_device *dev);
272228 void mgag200_i2c_destroy(struct mga_i2c_chan *i2c);
273229 
274
-#define DRM_FILE_PAGE_OFFSET (0x100000000ULL >> PAGE_SHIFT)
275
-void mgag200_ttm_placement(struct mgag200_bo *bo, int domain);
276
-
277
-static inline int mgag200_bo_reserve(struct mgag200_bo *bo, bool no_wait)
278
-{
279
-	int ret;
280
-
281
-	ret = ttm_bo_reserve(&bo->bo, true, no_wait, NULL);
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
-
295
-int mgag200_bo_create(struct drm_device *dev, int size, int align,
296
-		      uint32_t flags, struct mgag200_bo **pastbo);
230
+				/* mgag200_mm.c */
297231 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);
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);
307232 
308233 #endif				/* __MGAG200_DRV_H__ */