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1 /*
2  * Copyright 2003 Tungsten Graphics, Inc., Cedar Park, Texas.
3  * All Rights Reserved.
4  *
5  * Permission is hereby granted, free of charge, to any person obtaining a
6  * copy of this software and associated documentation files (the
7  * "Software"), to deal in the Software without restriction, including
8  * without limitation the rights to use, copy, modify, merge, publish,
9  * distribute, sub license, and/or sell copies of the Software, and to
10  * permit persons to whom the Software is furnished to do so, subject to
11  * the following conditions:
12  *
13  * The above copyright notice and this permission notice (including the
14  * next paragraph) shall be included in all copies or substantial portions
15  * of the Software.
16  *
17  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
18  * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
19  * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
20  * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR
21  * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
22  * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
23  * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
24  *
25  */
26 #ifndef _I915_DRM_H_
27 #define _I915_DRM_H_
28 
29 #include <drm/i915_pciids.h>
30 #include <uapi/drm/i915_drm.h>
31 
32 /* For use by IPS driver */
33 unsigned long i915_read_mch_val(void);
34 bool i915_gpu_raise(void);
35 bool i915_gpu_lower(void);
36 bool i915_gpu_busy(void);
37 bool i915_gpu_turbo_disable(void);
38 
39 /* Exported from arch/x86/kernel/early-quirks.c */
40 extern struct resource intel_graphics_stolen_res;
41 
42 /*
43  * The Bridge device's PCI config space has information about the
44  * fb aperture size and the amount of pre-reserved memory.
45  * This is all handled in the intel-gtt.ko module. i915.ko only
46  * cares about the vga bit for the vga rbiter.
47  */
48 #define INTEL_GMCH_CTRL		0x52
49 #define INTEL_GMCH_VGA_DISABLE  (1 << 1)
50 #define SNB_GMCH_CTRL		0x50
51 #define    SNB_GMCH_GGMS_SHIFT	8 /* GTT Graphics Memory Size */
52 #define    SNB_GMCH_GGMS_MASK	0x3
53 #define    SNB_GMCH_GMS_SHIFT   3 /* Graphics Mode Select */
54 #define    SNB_GMCH_GMS_MASK    0x1f
55 #define    BDW_GMCH_GGMS_SHIFT	6
56 #define    BDW_GMCH_GGMS_MASK	0x3
57 #define    BDW_GMCH_GMS_SHIFT   8
58 #define    BDW_GMCH_GMS_MASK    0xff
59 
60 #define I830_GMCH_CTRL			0x52
61 
62 #define I830_GMCH_GMS_MASK		0x70
63 #define I830_GMCH_GMS_LOCAL		0x10
64 #define I830_GMCH_GMS_STOLEN_512	0x20
65 #define I830_GMCH_GMS_STOLEN_1024	0x30
66 #define I830_GMCH_GMS_STOLEN_8192	0x40
67 
68 #define I855_GMCH_GMS_MASK		0xF0
69 #define I855_GMCH_GMS_STOLEN_0M		0x0
70 #define I855_GMCH_GMS_STOLEN_1M		(0x1 << 4)
71 #define I855_GMCH_GMS_STOLEN_4M		(0x2 << 4)
72 #define I855_GMCH_GMS_STOLEN_8M		(0x3 << 4)
73 #define I855_GMCH_GMS_STOLEN_16M	(0x4 << 4)
74 #define I855_GMCH_GMS_STOLEN_32M	(0x5 << 4)
75 #define I915_GMCH_GMS_STOLEN_48M	(0x6 << 4)
76 #define I915_GMCH_GMS_STOLEN_64M	(0x7 << 4)
77 #define G33_GMCH_GMS_STOLEN_128M	(0x8 << 4)
78 #define G33_GMCH_GMS_STOLEN_256M	(0x9 << 4)
79 #define INTEL_GMCH_GMS_STOLEN_96M	(0xa << 4)
80 #define INTEL_GMCH_GMS_STOLEN_160M	(0xb << 4)
81 #define INTEL_GMCH_GMS_STOLEN_224M	(0xc << 4)
82 #define INTEL_GMCH_GMS_STOLEN_352M	(0xd << 4)
83 
84 #define I830_DRB3		0x63
85 #define I85X_DRB3		0x43
86 #define I865_TOUD		0xc4
87 
88 #define I830_ESMRAMC		0x91
89 #define I845_ESMRAMC		0x9e
90 #define I85X_ESMRAMC		0x61
91 #define    TSEG_ENABLE		(1 << 0)
92 #define    I830_TSEG_SIZE_512K	(0 << 1)
93 #define    I830_TSEG_SIZE_1M	(1 << 1)
94 #define    I845_TSEG_SIZE_MASK	(3 << 1)
95 #define    I845_TSEG_SIZE_512K	(2 << 1)
96 #define    I845_TSEG_SIZE_1M	(3 << 1)
97 
98 #define INTEL_BSM		0x5c
99 #define INTEL_GEN11_BSM_DW0	0xc0
100 #define INTEL_GEN11_BSM_DW1	0xc4
101 #define   INTEL_BSM_MASK	(-(1u << 20))
102 
103 enum port {
104 	PORT_NONE = -1,
105 
106 	PORT_A = 0,
107 	PORT_B,
108 	PORT_C,
109 	PORT_D,
110 	PORT_E,
111 	PORT_F,
112 	PORT_G,
113 	PORT_H,
114 	PORT_I,
115 
116 	I915_MAX_PORTS
117 };
118 
119 #define port_name(p) ((p) + 'A')
120 
121 #endif				/* _I915_DRM_H_ */
122