1 /* SPDX-License-Identifier: MIT */
2 /*
3  * Copyright © 2022 Intel Corporation
4  */
5 
6 #ifndef __INTEL_PCI_CONFIG_H__
7 #define __INTEL_PCI_CONFIG_H__
8 
9 /* PCI BARs */
10 #define GEN2_GMADR_BAR				0
11 #define GEN2_MMADR_BAR				1 /* MMIO+GTT, despite the name */
12 #define GEN2_IO_BAR				2 /* 85x/865 */
13 
14 #define GEN3_MMADR_BAR				0 /* MMIO only */
15 #define GEN3_IO_BAR				1
16 #define GEN3_GMADR_BAR				2
17 #define GEN3_GTTADR_BAR				3 /* GTT only */
18 
19 #define GEN4_GTTMMADR_BAR			0 /* MMIO+GTT */
20 #define GEN4_GMADR_BAR				2
21 #define GEN4_IO_BAR				4
22 
23 #define GEN12_LMEM_BAR				2
24 
intel_mmio_bar(int graphics_ver)25 static inline int intel_mmio_bar(int graphics_ver)
26 {
27 	switch (graphics_ver) {
28 	case 2: return GEN2_MMADR_BAR;
29 	case 3: return GEN3_MMADR_BAR;
30 	default: return GEN4_GTTMMADR_BAR;
31 	}
32 }
33 
34 /* BSM in include/drm/i915_drm.h */
35 
36 #define MCHBAR_I915				0x44
37 #define MCHBAR_I965				0x48
38 #define   MCHBAR_SIZE				(4 * 4096)
39 
40 #define DEVEN					0x54
41 #define   DEVEN_MCHBAR_EN			(1 << 28)
42 
43 #define HPLLCC					0xc0 /* 85x only */
44 #define   GC_CLOCK_CONTROL_MASK			(0x7 << 0)
45 #define   GC_CLOCK_133_200			(0 << 0)
46 #define   GC_CLOCK_100_200			(1 << 0)
47 #define   GC_CLOCK_100_133			(2 << 0)
48 #define   GC_CLOCK_133_266			(3 << 0)
49 #define   GC_CLOCK_133_200_2			(4 << 0)
50 #define   GC_CLOCK_133_266_2			(5 << 0)
51 #define   GC_CLOCK_166_266			(6 << 0)
52 #define   GC_CLOCK_166_250			(7 << 0)
53 
54 #define I915_GDRST				0xc0
55 #define   GRDOM_FULL				(0 << 2)
56 #define   GRDOM_RENDER				(1 << 2)
57 #define   GRDOM_MEDIA				(3 << 2)
58 #define   GRDOM_MASK				(3 << 2)
59 #define   GRDOM_RESET_STATUS			(1 << 1)
60 #define   GRDOM_RESET_ENABLE			(1 << 0)
61 
62 /* BSpec only has register offset, PCI device and bit found empirically */
63 #define I830_CLOCK_GATE				0xc8 /* device 0 */
64 #define   I830_L2_CACHE_CLOCK_GATE_DISABLE	(1 << 2)
65 
66 #define GCDGMBUS				0xcc
67 
68 #define GCFGC2					0xda
69 #define GCFGC					0xf0 /* 915+ only */
70 #define   GC_LOW_FREQUENCY_ENABLE		(1 << 7)
71 #define   GC_DISPLAY_CLOCK_190_200_MHZ		(0 << 4)
72 #define   GC_DISPLAY_CLOCK_333_320_MHZ		(4 << 4)
73 #define   GC_DISPLAY_CLOCK_267_MHZ_PNV		(0 << 4)
74 #define   GC_DISPLAY_CLOCK_333_MHZ_PNV		(1 << 4)
75 #define   GC_DISPLAY_CLOCK_444_MHZ_PNV		(2 << 4)
76 #define   GC_DISPLAY_CLOCK_200_MHZ_PNV		(5 << 4)
77 #define   GC_DISPLAY_CLOCK_133_MHZ_PNV		(6 << 4)
78 #define   GC_DISPLAY_CLOCK_167_MHZ_PNV		(7 << 4)
79 #define   GC_DISPLAY_CLOCK_MASK			(7 << 4)
80 #define   GM45_GC_RENDER_CLOCK_MASK		(0xf << 0)
81 #define   GM45_GC_RENDER_CLOCK_266_MHZ		(8 << 0)
82 #define   GM45_GC_RENDER_CLOCK_320_MHZ		(9 << 0)
83 #define   GM45_GC_RENDER_CLOCK_400_MHZ		(0xb << 0)
84 #define   GM45_GC_RENDER_CLOCK_533_MHZ		(0xc << 0)
85 #define   I965_GC_RENDER_CLOCK_MASK		(0xf << 0)
86 #define   I965_GC_RENDER_CLOCK_267_MHZ		(2 << 0)
87 #define   I965_GC_RENDER_CLOCK_333_MHZ		(3 << 0)
88 #define   I965_GC_RENDER_CLOCK_444_MHZ		(4 << 0)
89 #define   I965_GC_RENDER_CLOCK_533_MHZ		(5 << 0)
90 #define   I945_GC_RENDER_CLOCK_MASK		(7 << 0)
91 #define   I945_GC_RENDER_CLOCK_166_MHZ		(0 << 0)
92 #define   I945_GC_RENDER_CLOCK_200_MHZ		(1 << 0)
93 #define   I945_GC_RENDER_CLOCK_250_MHZ		(3 << 0)
94 #define   I945_GC_RENDER_CLOCK_400_MHZ		(5 << 0)
95 #define   I915_GC_RENDER_CLOCK_MASK		(7 << 0)
96 #define   I915_GC_RENDER_CLOCK_166_MHZ		(0 << 0)
97 #define   I915_GC_RENDER_CLOCK_200_MHZ		(1 << 0)
98 #define   I915_GC_RENDER_CLOCK_333_MHZ		(4 << 0)
99 
100 #define ASLE					0xe4
101 #define ASLS					0xfc
102 
103 #define SWSCI					0xe8
104 #define   SWSCI_SCISEL				(1 << 15)
105 #define   SWSCI_GSSCIE				(1 << 0)
106 
107 /* legacy/combination backlight modes, also called LBB */
108 #define LBPC					0xf4
109 
110 #endif /* __INTEL_PCI_CONFIG_H__ */
111