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authorDavid Herrmann <dh.herrmann@gmail.com>2013-08-02 08:05:23 -0400
committerH. Peter Anvin <hpa@linux.intel.com>2013-08-02 19:17:47 -0400
commit2995e506276bfdc7311eb02db8b2aa1a61a4b849 (patch)
treec84c86746352c3875bb418a7bb91e433c2aa4471
parente3263ab389a7bc9398c3d366819d6f39b9cfd677 (diff)
x86: sysfb: move EFI quirks from efifb to sysfb
The EFI FB quirks from efifb.c are useful for simple-framebuffer devices as well. Apply them by default so we can convert efifb.c to use efi-framebuffer platform devices. Signed-off-by: David Herrmann <dh.herrmann@gmail.com> Link: http://lkml.kernel.org/r/1375445127-15480-5-git-send-email-dh.herrmann@gmail.com Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>
Diffstat
-rw-r--r--arch/x86/include/asm/sysfb.h57
-rw-r--r--arch/x86/kernel/Makefile1
-rw-r--r--arch/x86/kernel/sysfb.c3
-rw-r--r--arch/x86/kernel/sysfb_efi.c214
-rw-r--r--drivers/video/efifb.c234
5 files changed, 282 insertions, 227 deletions
diff --git a/arch/x86/include/asm/sysfb.h b/arch/x86/include/asm/sysfb.h
index 2395fe03f56b..2aeb3e25579c 100644
--- a/arch/x86/include/asm/sysfb.h
+++ b/arch/x86/include/asm/sysfb.h
@@ -15,6 +15,63 @@
15#include <linux/platform_data/simplefb.h> 15#include <linux/platform_data/simplefb.h>
16#include <linux/screen_info.h> 16#include <linux/screen_info.h>
17 17
18enum {
19 M_I17, /* 17-Inch iMac */
20 M_I20, /* 20-Inch iMac */
21 M_I20_SR, /* 20-Inch iMac (Santa Rosa) */
22 M_I24, /* 24-Inch iMac */
23 M_I24_8_1, /* 24-Inch iMac, 8,1th gen */
24 M_I24_10_1, /* 24-Inch iMac, 10,1th gen */
25 M_I27_11_1, /* 27-Inch iMac, 11,1th gen */
26 M_MINI, /* Mac Mini */
27 M_MINI_3_1, /* Mac Mini, 3,1th gen */
28 M_MINI_4_1, /* Mac Mini, 4,1th gen */
29 M_MB, /* MacBook */
30 M_MB_2, /* MacBook, 2nd rev. */
31 M_MB_3, /* MacBook, 3rd rev. */
32 M_MB_5_1, /* MacBook, 5th rev. */
33 M_MB_6_1, /* MacBook, 6th rev. */
34 M_MB_7_1, /* MacBook, 7th rev. */
35 M_MB_SR, /* MacBook, 2nd gen, (Santa Rosa) */
36 M_MBA, /* MacBook Air */
37 M_MBA_3, /* Macbook Air, 3rd rev */
38 M_MBP, /* MacBook Pro */
39 M_MBP_2, /* MacBook Pro 2nd gen */
40 M_MBP_2_2, /* MacBook Pro 2,2nd gen */
41 M_MBP_SR, /* MacBook Pro (Santa Rosa) */
42 M_MBP_4, /* MacBook Pro, 4th gen */
43 M_MBP_5_1, /* MacBook Pro, 5,1th gen */
44 M_MBP_5_2, /* MacBook Pro, 5,2th gen */
45 M_MBP_5_3, /* MacBook Pro, 5,3rd gen */
46 M_MBP_6_1, /* MacBook Pro, 6,1th gen */
47 M_MBP_6_2, /* MacBook Pro, 6,2th gen */
48 M_MBP_7_1, /* MacBook Pro, 7,1th gen */
49 M_MBP_8_2, /* MacBook Pro, 8,2nd gen */
50 M_UNKNOWN /* placeholder */
51};
52
53struct efifb_dmi_info {
54 char *optname;
55 unsigned long base;
56 int stride;
57 int width;
58 int height;
59 int flags;
60};
61
62#ifdef CONFIG_EFI
63
64extern struct efifb_dmi_info efifb_dmi_list[];
65void sysfb_apply_efi_quirks(void);
66
67#else /* CONFIG_EFI */
68
69static inline void sysfb_apply_efi_quirks(void)
70{
71}
72
73#endif /* CONFIG_EFI */
74
18#ifdef CONFIG_X86_SYSFB 75#ifdef CONFIG_X86_SYSFB
19 76
20bool parse_mode(const struct screen_info *si, 77bool parse_mode(const struct screen_info *si,
diff --git a/arch/x86/kernel/Makefile b/arch/x86/kernel/Makefile
index 90ecdc5d471a..a5408b965c9d 100644
--- a/arch/x86/kernel/Makefile
+++ b/arch/x86/kernel/Makefile
@@ -105,6 +105,7 @@ obj-$(CONFIG_OF) += devicetree.o
105obj-$(CONFIG_UPROBES) += uprobes.o 105obj-$(CONFIG_UPROBES) += uprobes.o
106obj-y += sysfb.o 106obj-y += sysfb.o
107obj-$(CONFIG_X86_SYSFB) += sysfb_simplefb.o 107obj-$(CONFIG_X86_SYSFB) += sysfb_simplefb.o
108obj-$(CONFIG_EFI) += sysfb_efi.o
108 109
109obj-$(CONFIG_PERF_EVENTS) += perf_regs.o 110obj-$(CONFIG_PERF_EVENTS) += perf_regs.o
110obj-$(CONFIG_TRACING) += tracepoint.o 111obj-$(CONFIG_TRACING) += tracepoint.o
diff --git a/arch/x86/kernel/sysfb.c b/arch/x86/kernel/sysfb.c
index 7f30e194eb52..193ec2ce46c7 100644
--- a/arch/x86/kernel/sysfb.c
+++ b/arch/x86/kernel/sysfb.c
@@ -47,6 +47,8 @@ static __init int sysfb_init(void)
47 bool compatible; 47 bool compatible;
48 int ret; 48 int ret;
49 49
50 sysfb_apply_efi_quirks();
51
50 /* try to create a simple-framebuffer device */ 52 /* try to create a simple-framebuffer device */
51 compatible = parse_mode(si, &mode); 53 compatible = parse_mode(si, &mode);
52 if (compatible) { 54 if (compatible) {
@@ -68,4 +70,5 @@ static __init int sysfb_init(void)
68 return IS_ERR(pd) ? PTR_ERR(pd) : 0; 70 return IS_ERR(pd) ? PTR_ERR(pd) : 0;
69} 71}
70 72
73/* must execute after PCI subsystem for EFI quirks */
71device_initcall(sysfb_init); 74device_initcall(sysfb_init);
diff --git a/arch/x86/kernel/sysfb_efi.c b/arch/x86/kernel/sysfb_efi.c
new file mode 100644
index 000000000000..b285d4e8c68e
--- /dev/null
+++ b/arch/x86/kernel/sysfb_efi.c
@@ -0,0 +1,214 @@
1/*
2 * Generic System Framebuffers on x86
3 * Copyright (c) 2012-2013 David Herrmann <dh.herrmann@gmail.com>
4 *
5 * EFI Quirks Copyright (c) 2006 Edgar Hucek <gimli@dark-green.com>
6 *
7 * This program is free software; you can redistribute it and/or modify it
8 * under the terms of the GNU General Public License as published by the Free
9 * Software Foundation; either version 2 of the License, or (at your option)
10 * any later version.
11 */
12
13/*
14 * EFI Quirks
15 * Several EFI systems do not correctly advertise their boot framebuffers.
16 * Hence, we use this static table of known broken machines and fix up the
17 * information so framebuffer drivers can load corectly.
18 */
19
20#include <linux/dmi.h>
21#include <linux/err.h>
22#include <linux/init.h>
23#include <linux/kernel.h>
24#include <linux/mm.h>
25#include <linux/pci.h>
26#include <linux/screen_info.h>
27#include <video/vga.h>
28#include <asm/sysfb.h>
29
30enum {
31 OVERRIDE_NONE = 0x0,
32 OVERRIDE_BASE = 0x1,
33 OVERRIDE_STRIDE = 0x2,
34 OVERRIDE_HEIGHT = 0x4,
35 OVERRIDE_WIDTH = 0x8,
36};
37
38struct efifb_dmi_info efifb_dmi_list[] = {
39 [M_I17] = { "i17", 0x80010000, 1472 * 4, 1440, 900, OVERRIDE_NONE },
40 [M_I20] = { "i20", 0x80010000, 1728 * 4, 1680, 1050, OVERRIDE_NONE }, /* guess */
41 [M_I20_SR] = { "imac7", 0x40010000, 1728 * 4, 1680, 1050, OVERRIDE_NONE },
42 [M_I24] = { "i24", 0x80010000, 2048 * 4, 1920, 1200, OVERRIDE_NONE }, /* guess */
43 [M_I24_8_1] = { "imac8", 0xc0060000, 2048 * 4, 1920, 1200, OVERRIDE_NONE },
44 [M_I24_10_1] = { "imac10", 0xc0010000, 2048 * 4, 1920, 1080, OVERRIDE_NONE },
45 [M_I27_11_1] = { "imac11", 0xc0010000, 2560 * 4, 2560, 1440, OVERRIDE_NONE },
46 [M_MINI]= { "mini", 0x80000000, 2048 * 4, 1024, 768, OVERRIDE_NONE },
47 [M_MINI_3_1] = { "mini31", 0x40010000, 1024 * 4, 1024, 768, OVERRIDE_NONE },
48 [M_MINI_4_1] = { "mini41", 0xc0010000, 2048 * 4, 1920, 1200, OVERRIDE_NONE },
49 [M_MB] = { "macbook", 0x80000000, 2048 * 4, 1280, 800, OVERRIDE_NONE },
50 [M_MB_5_1] = { "macbook51", 0x80010000, 2048 * 4, 1280, 800, OVERRIDE_NONE },
51 [M_MB_6_1] = { "macbook61", 0x80010000, 2048 * 4, 1280, 800, OVERRIDE_NONE },
52 [M_MB_7_1] = { "macbook71", 0x80010000, 2048 * 4, 1280, 800, OVERRIDE_NONE },
53 [M_MBA] = { "mba", 0x80000000, 2048 * 4, 1280, 800, OVERRIDE_NONE },
54 /* 11" Macbook Air 3,1 passes the wrong stride */
55 [M_MBA_3] = { "mba3", 0, 2048 * 4, 0, 0, OVERRIDE_STRIDE },
56 [M_MBP] = { "mbp", 0x80010000, 1472 * 4, 1440, 900, OVERRIDE_NONE },
57 [M_MBP_2] = { "mbp2", 0, 0, 0, 0, OVERRIDE_NONE }, /* placeholder */
58 [M_MBP_2_2] = { "mbp22", 0x80010000, 1472 * 4, 1440, 900, OVERRIDE_NONE },
59 [M_MBP_SR] = { "mbp3", 0x80030000, 2048 * 4, 1440, 900, OVERRIDE_NONE },
60 [M_MBP_4] = { "mbp4", 0xc0060000, 2048 * 4, 1920, 1200, OVERRIDE_NONE },
61 [M_MBP_5_1] = { "mbp51", 0xc0010000, 2048 * 4, 1440, 900, OVERRIDE_NONE },
62 [M_MBP_5_2] = { "mbp52", 0xc0010000, 2048 * 4, 1920, 1200, OVERRIDE_NONE },
63 [M_MBP_5_3] = { "mbp53", 0xd0010000, 2048 * 4, 1440, 900, OVERRIDE_NONE },
64 [M_MBP_6_1] = { "mbp61", 0x90030000, 2048 * 4, 1920, 1200, OVERRIDE_NONE },
65 [M_MBP_6_2] = { "mbp62", 0x90030000, 2048 * 4, 1680, 1050, OVERRIDE_NONE },
66 [M_MBP_7_1] = { "mbp71", 0xc0010000, 2048 * 4, 1280, 800, OVERRIDE_NONE },
67 [M_MBP_8_2] = { "mbp82", 0x90010000, 1472 * 4, 1440, 900, OVERRIDE_NONE },
68 [M_UNKNOWN] = { NULL, 0, 0, 0, 0, OVERRIDE_NONE }
69};
70
71#define choose_value(dmivalue, fwvalue, field, flags) ({ \
72 typeof(fwvalue) _ret_ = fwvalue; \
73 if ((flags) & (field)) \
74 _ret_ = dmivalue; \
75 else if ((fwvalue) == 0) \
76 _ret_ = dmivalue; \
77 _ret_; \
78 })
79
80static int __init efifb_set_system(const struct dmi_system_id *id)
81{
82 struct efifb_dmi_info *info = id->driver_data;
83
84 if (info->base == 0 && info->height == 0 && info->width == 0 &&
85 info->stride == 0)
86 return 0;
87
88 /* Trust the bootloader over the DMI tables */
89 if (screen_info.lfb_base == 0) {
90#if defined(CONFIG_PCI)
91 struct pci_dev *dev = NULL;
92 int found_bar = 0;
93#endif
94 if (info->base) {
95 screen_info.lfb_base = choose_value(info->base,
96 screen_info.lfb_base, OVERRIDE_BASE,
97 info->flags);
98
99#if defined(CONFIG_PCI)
100 /* make sure that the address in the table is actually
101 * on a VGA device's PCI BAR */
102
103 for_each_pci_dev(dev) {
104 int i;
105 if ((dev->class >> 8) != PCI_CLASS_DISPLAY_VGA)
106 continue;
107 for (i = 0; i < DEVICE_COUNT_RESOURCE; i++) {
108 resource_size_t start, end;
109
110 start = pci_resource_start(dev, i);
111 if (start == 0)
112 break;
113 end = pci_resource_end(dev, i);
114 if (screen_info.lfb_base >= start &&
115 screen_info.lfb_base < end) {
116 found_bar = 1;
117 }
118 }
119 }
120 if (!found_bar)
121 screen_info.lfb_base = 0;
122#endif
123 }
124 }
125 if (screen_info.lfb_base) {
126 screen_info.lfb_linelength = choose_value(info->stride,
127 screen_info.lfb_linelength, OVERRIDE_STRIDE,
128 info->flags);
129 screen_info.lfb_width = choose_value(info->width,
130 screen_info.lfb_width, OVERRIDE_WIDTH,
131 info->flags);
132 screen_info.lfb_height = choose_value(info->height,
133 screen_info.lfb_height, OVERRIDE_HEIGHT,
134 info->flags);
135 if (screen_info.orig_video_isVGA == 0)
136 screen_info.orig_video_isVGA = VIDEO_TYPE_EFI;
137 } else {
138 screen_info.lfb_linelength = 0;
139 screen_info.lfb_width = 0;
140 screen_info.lfb_height = 0;
141 screen_info.orig_video_isVGA = 0;
142 return 0;
143 }
144
145 printk(KERN_INFO "efifb: dmi detected %s - framebuffer at 0x%08x "
146 "(%dx%d, stride %d)\n", id->ident,
147 screen_info.lfb_base, screen_info.lfb_width,
148 screen_info.lfb_height, screen_info.lfb_linelength);
149
150 return 1;
151}
152
153#define EFIFB_DMI_SYSTEM_ID(vendor, name, enumid) \
154 { \
155 efifb_set_system, \
156 name, \
157 { \
158 DMI_MATCH(DMI_BIOS_VENDOR, vendor), \
159 DMI_MATCH(DMI_PRODUCT_NAME, name) \
160 }, \
161 &efifb_dmi_list[enumid] \
162 }
163
164static const struct dmi_system_id efifb_dmi_system_table[] __initconst = {
165 EFIFB_DMI_SYSTEM_ID("Apple Computer, Inc.", "iMac4,1", M_I17),
166 /* At least one of these two will be right; maybe both? */
167 EFIFB_DMI_SYSTEM_ID("Apple Computer, Inc.", "iMac5,1", M_I20),
168 EFIFB_DMI_SYSTEM_ID("Apple Inc.", "iMac5,1", M_I20),
169 /* At least one of these two will be right; maybe both? */
170 EFIFB_DMI_SYSTEM_ID("Apple Computer, Inc.", "iMac6,1", M_I24),
171 EFIFB_DMI_SYSTEM_ID("Apple Inc.", "iMac6,1", M_I24),
172 EFIFB_DMI_SYSTEM_ID("Apple Inc.", "iMac7,1", M_I20_SR),
173 EFIFB_DMI_SYSTEM_ID("Apple Inc.", "iMac8,1", M_I24_8_1),
174 EFIFB_DMI_SYSTEM_ID("Apple Inc.", "iMac10,1", M_I24_10_1),
175 EFIFB_DMI_SYSTEM_ID("Apple Inc.", "iMac11,1", M_I27_11_1),
176 EFIFB_DMI_SYSTEM_ID("Apple Computer, Inc.", "Macmini1,1", M_MINI),
177 EFIFB_DMI_SYSTEM_ID("Apple Inc.", "Macmini3,1", M_MINI_3_1),
178 EFIFB_DMI_SYSTEM_ID("Apple Inc.", "Macmini4,1", M_MINI_4_1),
179 EFIFB_DMI_SYSTEM_ID("Apple Computer, Inc.", "MacBook1,1", M_MB),
180 /* At least one of these two will be right; maybe both? */
181 EFIFB_DMI_SYSTEM_ID("Apple Computer, Inc.", "MacBook2,1", M_MB),
182 EFIFB_DMI_SYSTEM_ID("Apple Inc.", "MacBook2,1", M_MB),
183 /* At least one of these two will be right; maybe both? */
184 EFIFB_DMI_SYSTEM_ID("Apple Computer, Inc.", "MacBook3,1", M_MB),
185 EFIFB_DMI_SYSTEM_ID("Apple Inc.", "MacBook3,1", M_MB),
186 EFIFB_DMI_SYSTEM_ID("Apple Inc.", "MacBook4,1", M_MB),
187 EFIFB_DMI_SYSTEM_ID("Apple Inc.", "MacBook5,1", M_MB_5_1),
188 EFIFB_DMI_SYSTEM_ID("Apple Inc.", "MacBook6,1", M_MB_6_1),
189 EFIFB_DMI_SYSTEM_ID("Apple Inc.", "MacBook7,1", M_MB_7_1),
190 EFIFB_DMI_SYSTEM_ID("Apple Inc.", "MacBookAir1,1", M_MBA),
191 EFIFB_DMI_SYSTEM_ID("Apple Inc.", "MacBookAir3,1", M_MBA_3),
192 EFIFB_DMI_SYSTEM_ID("Apple Computer, Inc.", "MacBookPro1,1", M_MBP),
193 EFIFB_DMI_SYSTEM_ID("Apple Computer, Inc.", "MacBookPro2,1", M_MBP_2),
194 EFIFB_DMI_SYSTEM_ID("Apple Computer, Inc.", "MacBookPro2,2", M_MBP_2_2),
195 EFIFB_DMI_SYSTEM_ID("Apple Inc.", "MacBookPro2,1", M_MBP_2),
196 EFIFB_DMI_SYSTEM_ID("Apple Computer, Inc.", "MacBookPro3,1", M_MBP_SR),
197 EFIFB_DMI_SYSTEM_ID("Apple Inc.", "MacBookPro3,1", M_MBP_SR),
198 EFIFB_DMI_SYSTEM_ID("Apple Inc.", "MacBookPro4,1", M_MBP_4),
199 EFIFB_DMI_SYSTEM_ID("Apple Inc.", "MacBookPro5,1", M_MBP_5_1),
200 EFIFB_DMI_SYSTEM_ID("Apple Inc.", "MacBookPro5,2", M_MBP_5_2),
201 EFIFB_DMI_SYSTEM_ID("Apple Inc.", "MacBookPro5,3", M_MBP_5_3),
202 EFIFB_DMI_SYSTEM_ID("Apple Inc.", "MacBookPro6,1", M_MBP_6_1),
203 EFIFB_DMI_SYSTEM_ID("Apple Inc.", "MacBookPro6,2", M_MBP_6_2),
204 EFIFB_DMI_SYSTEM_ID("Apple Inc.", "MacBookPro7,1", M_MBP_7_1),
205 EFIFB_DMI_SYSTEM_ID("Apple Inc.", "MacBookPro8,2", M_MBP_8_2),
206 {},
207};
208
209__init void sysfb_apply_efi_quirks(void)
210{
211 if (screen_info.orig_video_isVGA != VIDEO_TYPE_EFI ||
212 !(screen_info.capabilities & VIDEO_CAPABILITY_SKIP_QUIRKS))
213 dmi_check_system(efifb_dmi_system_table);
214}
diff --git a/drivers/video/efifb.c b/drivers/video/efifb.c
index 50fe668c6172..e493bcb44f05 100644
--- a/drivers/video/efifb.c
+++ b/drivers/video/efifb.c
@@ -15,6 +15,7 @@
15#include <linux/dmi.h> 15#include <linux/dmi.h>
16#include <linux/pci.h> 16#include <linux/pci.h>
17#include <video/vga.h> 17#include <video/vga.h>
18#include <asm/sysfb.h>
18 19
19static bool request_mem_succeeded = false; 20static bool request_mem_succeeded = false;
20 21
@@ -38,223 +39,6 @@ static struct fb_fix_screeninfo efifb_fix = {
38 .visual = FB_VISUAL_TRUECOLOR, 39 .visual = FB_VISUAL_TRUECOLOR,
39}; 40};
40 41
41enum {
42 M_I17, /* 17-Inch iMac */
43 M_I20, /* 20-Inch iMac */
44 M_I20_SR, /* 20-Inch iMac (Santa Rosa) */
45 M_I24, /* 24-Inch iMac */
46 M_I24_8_1, /* 24-Inch iMac, 8,1th gen */
47 M_I24_10_1, /* 24-Inch iMac, 10,1th gen */
48 M_I27_11_1, /* 27-Inch iMac, 11,1th gen */
49 M_MINI, /* Mac Mini */
50 M_MINI_3_1, /* Mac Mini, 3,1th gen */
51 M_MINI_4_1, /* Mac Mini, 4,1th gen */
52 M_MB, /* MacBook */
53 M_MB_2, /* MacBook, 2nd rev. */
54 M_MB_3, /* MacBook, 3rd rev. */
55 M_MB_5_1, /* MacBook, 5th rev. */
56 M_MB_6_1, /* MacBook, 6th rev. */
57 M_MB_7_1, /* MacBook, 7th rev. */
58 M_MB_SR, /* MacBook, 2nd gen, (Santa Rosa) */
59 M_MBA, /* MacBook Air */
60 M_MBA_3, /* Macbook Air, 3rd rev */
61 M_MBP, /* MacBook Pro */
62 M_MBP_2, /* MacBook Pro 2nd gen */
63 M_MBP_2_2, /* MacBook Pro 2,2nd gen */
64 M_MBP_SR, /* MacBook Pro (Santa Rosa) */
65 M_MBP_4, /* MacBook Pro, 4th gen */
66 M_MBP_5_1, /* MacBook Pro, 5,1th gen */
67 M_MBP_5_2, /* MacBook Pro, 5,2th gen */
68 M_MBP_5_3, /* MacBook Pro, 5,3rd gen */
69 M_MBP_6_1, /* MacBook Pro, 6,1th gen */
70 M_MBP_6_2, /* MacBook Pro, 6,2th gen */
71 M_MBP_7_1, /* MacBook Pro, 7,1th gen */
72 M_MBP_8_2, /* MacBook Pro, 8,2nd gen */
73 M_UNKNOWN /* placeholder */
74};
75
76#define OVERRIDE_NONE 0x0
77#define OVERRIDE_BASE 0x1
78#define OVERRIDE_STRIDE 0x2
79#define OVERRIDE_HEIGHT 0x4
80#define OVERRIDE_WIDTH 0x8
81
82static struct efifb_dmi_info {
83 char *optname;
84 unsigned long base;
85 int stride;
86 int width;
87 int height;
88 int flags;
89} dmi_list[] __initdata = {
90 [M_I17] = { "i17", 0x80010000, 1472 * 4, 1440, 900, OVERRIDE_NONE },
91 [M_I20] = { "i20", 0x80010000, 1728 * 4, 1680, 1050, OVERRIDE_NONE }, /* guess */
92 [M_I20_SR] = { "imac7", 0x40010000, 1728 * 4, 1680, 1050, OVERRIDE_NONE },
93 [M_I24] = { "i24", 0x80010000, 2048 * 4, 1920, 1200, OVERRIDE_NONE }, /* guess */
94 [M_I24_8_1] = { "imac8", 0xc0060000, 2048 * 4, 1920, 1200, OVERRIDE_NONE },
95 [M_I24_10_1] = { "imac10", 0xc0010000, 2048 * 4, 1920, 1080, OVERRIDE_NONE },
96 [M_I27_11_1] = { "imac11", 0xc0010000, 2560 * 4, 2560, 1440, OVERRIDE_NONE },
97 [M_MINI]= { "mini", 0x80000000, 2048 * 4, 1024, 768, OVERRIDE_NONE },
98 [M_MINI_3_1] = { "mini31", 0x40010000, 1024 * 4, 1024, 768, OVERRIDE_NONE },
99 [M_MINI_4_1] = { "mini41", 0xc0010000, 2048 * 4, 1920, 1200, OVERRIDE_NONE },
100 [M_MB] = { "macbook", 0x80000000, 2048 * 4, 1280, 800, OVERRIDE_NONE },
101 [M_MB_5_1] = { "macbook51", 0x80010000, 2048 * 4, 1280, 800, OVERRIDE_NONE },
102 [M_MB_6_1] = { "macbook61", 0x80010000, 2048 * 4, 1280, 800, OVERRIDE_NONE },
103 [M_MB_7_1] = { "macbook71", 0x80010000, 2048 * 4, 1280, 800, OVERRIDE_NONE },
104 [M_MBA] = { "mba", 0x80000000, 2048 * 4, 1280, 800, OVERRIDE_NONE },
105 /* 11" Macbook Air 3,1 passes the wrong stride */
106 [M_MBA_3] = { "mba3", 0, 2048 * 4, 0, 0, OVERRIDE_STRIDE },
107 [M_MBP] = { "mbp", 0x80010000, 1472 * 4, 1440, 900, OVERRIDE_NONE },
108 [M_MBP_2] = { "mbp2", 0, 0, 0, 0, OVERRIDE_NONE }, /* placeholder */
109 [M_MBP_2_2] = { "mbp22", 0x80010000, 1472 * 4, 1440, 900, OVERRIDE_NONE },
110 [M_MBP_SR] = { "mbp3", 0x80030000, 2048 * 4, 1440, 900, OVERRIDE_NONE },
111 [M_MBP_4] = { "mbp4", 0xc0060000, 2048 * 4, 1920, 1200, OVERRIDE_NONE },
112 [M_MBP_5_1] = { "mbp51", 0xc0010000, 2048 * 4, 1440, 900, OVERRIDE_NONE },
113 [M_MBP_5_2] = { "mbp52", 0xc0010000, 2048 * 4, 1920, 1200, OVERRIDE_NONE },
114 [M_MBP_5_3] = { "mbp53", 0xd0010000, 2048 * 4, 1440, 900, OVERRIDE_NONE },
115 [M_MBP_6_1] = { "mbp61", 0x90030000, 2048 * 4, 1920, 1200, OVERRIDE_NONE },
116 [M_MBP_6_2] = { "mbp62", 0x90030000, 2048 * 4, 1680, 1050, OVERRIDE_NONE },
117 [M_MBP_7_1] = { "mbp71", 0xc0010000, 2048 * 4, 1280, 800, OVERRIDE_NONE },
118 [M_MBP_8_2] = { "mbp82", 0x90010000, 1472 * 4, 1440, 900, OVERRIDE_NONE },
119 [M_UNKNOWN] = { NULL, 0, 0, 0, 0, OVERRIDE_NONE }
120};
121
122static int set_system(const struct dmi_system_id *id);
123
124#define EFIFB_DMI_SYSTEM_ID(vendor, name, enumid) \
125 { set_system, name, { \
126 DMI_MATCH(DMI_BIOS_VENDOR, vendor), \
127 DMI_MATCH(DMI_PRODUCT_NAME, name) }, \
128 &dmi_list[enumid] }
129
130static const struct dmi_system_id dmi_system_table[] __initconst = {
131 EFIFB_DMI_SYSTEM_ID("Apple Computer, Inc.", "iMac4,1", M_I17),
132 /* At least one of these two will be right; maybe both? */
133 EFIFB_DMI_SYSTEM_ID("Apple Computer, Inc.", "iMac5,1", M_I20),
134 EFIFB_DMI_SYSTEM_ID("Apple Inc.", "iMac5,1", M_I20),
135 /* At least one of these two will be right; maybe both? */
136 EFIFB_DMI_SYSTEM_ID("Apple Computer, Inc.", "iMac6,1", M_I24),
137 EFIFB_DMI_SYSTEM_ID("Apple Inc.", "iMac6,1", M_I24),
138 EFIFB_DMI_SYSTEM_ID("Apple Inc.", "iMac7,1", M_I20_SR),
139 EFIFB_DMI_SYSTEM_ID("Apple Inc.", "iMac8,1", M_I24_8_1),
140 EFIFB_DMI_SYSTEM_ID("Apple Inc.", "iMac10,1", M_I24_10_1),
141 EFIFB_DMI_SYSTEM_ID("Apple Inc.", "iMac11,1", M_I27_11_1),
142 EFIFB_DMI_SYSTEM_ID("Apple Computer, Inc.", "Macmini1,1", M_MINI),
143 EFIFB_DMI_SYSTEM_ID("Apple Inc.", "Macmini3,1", M_MINI_3_1),
144 EFIFB_DMI_SYSTEM_ID("Apple Inc.", "Macmini4,1", M_MINI_4_1),
145 EFIFB_DMI_SYSTEM_ID("Apple Computer, Inc.", "MacBook1,1", M_MB),
146 /* At least one of these two will be right; maybe both? */
147 EFIFB_DMI_SYSTEM_ID("Apple Computer, Inc.", "MacBook2,1", M_MB),
148 EFIFB_DMI_SYSTEM_ID("Apple Inc.", "MacBook2,1", M_MB),
149 /* At least one of these two will be right; maybe both? */
150 EFIFB_DMI_SYSTEM_ID("Apple Computer, Inc.", "MacBook3,1", M_MB),
151 EFIFB_DMI_SYSTEM_ID("Apple Inc.", "MacBook3,1", M_MB),
152 EFIFB_DMI_SYSTEM_ID("Apple Inc.", "MacBook4,1", M_MB),
153 EFIFB_DMI_SYSTEM_ID("Apple Inc.", "MacBook5,1", M_MB_5_1),
154 EFIFB_DMI_SYSTEM_ID("Apple Inc.", "MacBook6,1", M_MB_6_1),
155 EFIFB_DMI_SYSTEM_ID("Apple Inc.", "MacBook7,1", M_MB_7_1),
156 EFIFB_DMI_SYSTEM_ID("Apple Inc.", "MacBookAir1,1", M_MBA),
157 EFIFB_DMI_SYSTEM_ID("Apple Inc.", "MacBookAir3,1", M_MBA_3),
158 EFIFB_DMI_SYSTEM_ID("Apple Computer, Inc.", "MacBookPro1,1", M_MBP),
159 EFIFB_DMI_SYSTEM_ID("Apple Computer, Inc.", "MacBookPro2,1", M_MBP_2),
160 EFIFB_DMI_SYSTEM_ID("Apple Computer, Inc.", "MacBookPro2,2", M_MBP_2_2),
161 EFIFB_DMI_SYSTEM_ID("Apple Inc.", "MacBookPro2,1", M_MBP_2),
162 EFIFB_DMI_SYSTEM_ID("Apple Computer, Inc.", "MacBookPro3,1", M_MBP_SR),
163 EFIFB_DMI_SYSTEM_ID("Apple Inc.", "MacBookPro3,1", M_MBP_SR),
164 EFIFB_DMI_SYSTEM_ID("Apple Inc.", "MacBookPro4,1", M_MBP_4),
165 EFIFB_DMI_SYSTEM_ID("Apple Inc.", "MacBookPro5,1", M_MBP_5_1),
166 EFIFB_DMI_SYSTEM_ID("Apple Inc.", "MacBookPro5,2", M_MBP_5_2),
167 EFIFB_DMI_SYSTEM_ID("Apple Inc.", "MacBookPro5,3", M_MBP_5_3),
168 EFIFB_DMI_SYSTEM_ID("Apple Inc.", "MacBookPro6,1", M_MBP_6_1),
169 EFIFB_DMI_SYSTEM_ID("Apple Inc.", "MacBookPro6,2", M_MBP_6_2),
170 EFIFB_DMI_SYSTEM_ID("Apple Inc.", "MacBookPro7,1", M_MBP_7_1),
171 EFIFB_DMI_SYSTEM_ID("Apple Inc.", "MacBookPro8,2", M_MBP_8_2),
172 {},
173};
174
175#define choose_value(dmivalue, fwvalue, field, flags) ({ \
176 typeof(fwvalue) _ret_ = fwvalue; \
177 if ((flags) & (field)) \
178 _ret_ = dmivalue; \
179 else if ((fwvalue) == 0) \
180 _ret_ = dmivalue; \
181 _ret_; \
182 })
183
184static int set_system(const struct dmi_system_id *id)
185{
186 struct efifb_dmi_info *info = id->driver_data;
187
188 if (info->base == 0 && info->height == 0 && info->width == 0
189 && info->stride == 0)
190 return 0;
191
192 /* Trust the bootloader over the DMI tables */
193 if (screen_info.lfb_base == 0) {
194#if defined(CONFIG_PCI)
195 struct pci_dev *dev = NULL;
196 int found_bar = 0;
197#endif
198 if (info->base) {
199 screen_info.lfb_base = choose_value(info->base,
200 screen_info.lfb_base, OVERRIDE_BASE,
201 info->flags);
202
203#if defined(CONFIG_PCI)
204 /* make sure that the address in the table is actually
205 * on a VGA device's PCI BAR */
206
207 for_each_pci_dev(dev) {
208 int i;
209 if ((dev->class >> 8) != PCI_CLASS_DISPLAY_VGA)
210 continue;
211 for (i = 0; i < DEVICE_COUNT_RESOURCE; i++) {
212 resource_size_t start, end;
213
214 start = pci_resource_start(dev, i);
215 if (start == 0)
216 break;
217 end = pci_resource_end(dev, i);
218 if (screen_info.lfb_base >= start &&
219 screen_info.lfb_base < end) {
220 found_bar = 1;
221 }
222 }
223 }
224 if (!found_bar)
225 screen_info.lfb_base = 0;
226#endif
227 }
228 }
229 if (screen_info.lfb_base) {
230 screen_info.lfb_linelength = choose_value(info->stride,
231 screen_info.lfb_linelength, OVERRIDE_STRIDE,
232 info->flags);
233 screen_info.lfb_width = choose_value(info->width,
234 screen_info.lfb_width, OVERRIDE_WIDTH,
235 info->flags);
236 screen_info.lfb_height = choose_value(info->height,
237 screen_info.lfb_height, OVERRIDE_HEIGHT,
238 info->flags);
239 if (screen_info.orig_video_isVGA == 0)
240 screen_info.orig_video_isVGA = VIDEO_TYPE_EFI;
241 } else {
242 screen_info.lfb_linelength = 0;
243 screen_info.lfb_width = 0;
244 screen_info.lfb_height = 0;
245 screen_info.orig_video_isVGA = 0;
246 return 0;
247 }
248
249 printk(KERN_INFO "efifb: dmi detected %s - framebuffer at 0x%08x "
250 "(%dx%d, stride %d)\n", id->ident,
251 screen_info.lfb_base, screen_info.lfb_width,
252 screen_info.lfb_height, screen_info.lfb_linelength);
253
254
255 return 1;
256}
257
258static int efifb_setcolreg(unsigned regno, unsigned red, unsigned green, 42static int efifb_setcolreg(unsigned regno, unsigned red, unsigned green,
259 unsigned blue, unsigned transp, 43 unsigned blue, unsigned transp,
260 struct fb_info *info) 44 struct fb_info *info)
@@ -323,12 +107,12 @@ static int __init efifb_setup(char *options)
323 if (!*this_opt) continue; 107 if (!*this_opt) continue;
324 108
325 for (i = 0; i < M_UNKNOWN; i++) { 109 for (i = 0; i < M_UNKNOWN; i++) {
326 if (!strcmp(this_opt, dmi_list[i].optname) && 110 if (!strcmp(this_opt, efifb_dmi_list[i].optname) &&
327 dmi_list[i].base != 0) { 111 efifb_dmi_list[i].base != 0) {
328 screen_info.lfb_base = dmi_list[i].base; 112 screen_info.lfb_base = efifb_dmi_list[i].base;
329 screen_info.lfb_linelength = dmi_list[i].stride; 113 screen_info.lfb_linelength = efifb_dmi_list[i].stride;
330 screen_info.lfb_width = dmi_list[i].width; 114 screen_info.lfb_width = efifb_dmi_list[i].width;
331 screen_info.lfb_height = dmi_list[i].height; 115 screen_info.lfb_height = efifb_dmi_list[i].height;
332 } 116 }
333 } 117 }
334 if (!strncmp(this_opt, "base:", 5)) 118 if (!strncmp(this_opt, "base:", 5))
@@ -553,10 +337,6 @@ static int __init efifb_init(void)
553 int ret; 337 int ret;
554 char *option = NULL; 338 char *option = NULL;
555 339
556 if (screen_info.orig_video_isVGA != VIDEO_TYPE_EFI ||
557 !(screen_info.capabilities & VIDEO_CAPABILITY_SKIP_QUIRKS))
558 dmi_check_system(dmi_system_table);
559
560 if (screen_info.orig_video_isVGA != VIDEO_TYPE_EFI) 340 if (screen_info.orig_video_isVGA != VIDEO_TYPE_EFI)
561 return -ENODEV; 341 return -ENODEV;
562 342
generated by cgit v1.2.2 (git 2.25.0) at 2025-03-28 14:08:29 -0400