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1da177e4 LT |
1 | /* mga_warp.c -- Matrox G200/G400 WARP engine management -*- linux-c -*- |
2 | * Created: Thu Jan 11 21:29:32 2001 by gareth@valinux.com | |
3 | * | |
4 | * Copyright 2000 VA Linux Systems, Inc., Sunnyvale, California. | |
5 | * All Rights Reserved. | |
6 | * | |
7 | * Permission is hereby granted, free of charge, to any person obtaining a | |
8 | * copy of this software and associated documentation files (the "Software"), | |
9 | * to deal in the Software without restriction, including without limitation | |
10 | * the rights to use, copy, modify, merge, publish, distribute, sublicense, | |
11 | * and/or sell copies of the Software, and to permit persons to whom the | |
12 | * Software is furnished to do so, subject to the following conditions: | |
13 | * | |
14 | * The above copyright notice and this permission notice (including the next | |
15 | * paragraph) shall be included in all copies or substantial portions of the | |
16 | * Software. | |
17 | * | |
18 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR | |
19 | * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, | |
20 | * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL | |
21 | * VA LINUX SYSTEMS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR | |
22 | * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, | |
23 | * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR | |
24 | * OTHER DEALINGS IN THE SOFTWARE. | |
25 | * | |
26 | * Authors: | |
27 | * Gareth Hughes <gareth@valinux.com> | |
28 | */ | |
29 | ||
ece2be79 BH |
30 | #include <linux/firmware.h> |
31 | #include <linux/ihex.h> | |
32 | #include <linux/platform_device.h> | |
e0cd3608 | 33 | #include <linux/module.h> |
ece2be79 | 34 | |
760285e7 DH |
35 | #include <drm/drmP.h> |
36 | #include <drm/mga_drm.h> | |
1da177e4 | 37 | #include "mga_drv.h" |
ece2be79 BH |
38 | |
39 | #define FIRMWARE_G200 "matrox/g200_warp.fw" | |
40 | #define FIRMWARE_G400 "matrox/g400_warp.fw" | |
41 | ||
42 | MODULE_FIRMWARE(FIRMWARE_G200); | |
43 | MODULE_FIRMWARE(FIRMWARE_G400); | |
1da177e4 | 44 | |
b5e89ed5 | 45 | #define MGA_WARP_CODE_ALIGN 256 /* in bytes */ |
1da177e4 | 46 | |
ece2be79 BH |
47 | #define WARP_UCODE_SIZE(size) ALIGN(size, MGA_WARP_CODE_ALIGN) |
48 | ||
f2b2cb79 | 49 | int mga_warp_install_microcode(drm_mga_private_t *dev_priv) |
1da177e4 | 50 | { |
ece2be79 BH |
51 | unsigned char *vcbase = dev_priv->warp->handle; |
52 | unsigned long pcbase = dev_priv->warp->offset; | |
53 | const char *firmware_name; | |
54 | struct platform_device *pdev; | |
55 | const struct firmware *fw = NULL; | |
56 | const struct ihex_binrec *rec; | |
57 | unsigned int size; | |
58 | int n_pipes, where; | |
59 | int rc = 0; | |
60 | ||
6795c985 DA |
61 | switch (dev_priv->chipset) { |
62 | case MGA_CARD_TYPE_G400: | |
63 | case MGA_CARD_TYPE_G550: | |
ece2be79 BH |
64 | firmware_name = FIRMWARE_G400; |
65 | n_pipes = MGA_MAX_G400_PIPES; | |
66 | break; | |
6795c985 | 67 | case MGA_CARD_TYPE_G200: |
ece2be79 BH |
68 | firmware_name = FIRMWARE_G200; |
69 | n_pipes = MGA_MAX_G200_PIPES; | |
70 | break; | |
6795c985 | 71 | default: |
ece2be79 | 72 | return -EINVAL; |
6795c985 | 73 | } |
1da177e4 | 74 | |
ece2be79 BH |
75 | pdev = platform_device_register_simple("mga_warp", 0, NULL, 0); |
76 | if (IS_ERR(pdev)) { | |
77 | DRM_ERROR("mga: Failed to register microcode\n"); | |
78 | return PTR_ERR(pdev); | |
79 | } | |
80 | rc = request_ihex_firmware(&fw, firmware_name, &pdev->dev); | |
81 | platform_device_unregister(pdev); | |
82 | if (rc) { | |
83 | DRM_ERROR("mga: Failed to load microcode \"%s\"\n", | |
84 | firmware_name); | |
85 | return rc; | |
86 | } | |
1da177e4 | 87 | |
ece2be79 BH |
88 | size = 0; |
89 | where = 0; | |
90 | for (rec = (const struct ihex_binrec *)fw->data; | |
91 | rec; | |
92 | rec = ihex_next_binrec(rec)) { | |
93 | size += WARP_UCODE_SIZE(be16_to_cpu(rec->len)); | |
94 | where++; | |
95 | } | |
6795c985 | 96 | |
ece2be79 BH |
97 | if (where != n_pipes) { |
98 | DRM_ERROR("mga: Invalid microcode \"%s\"\n", firmware_name); | |
99 | rc = -EINVAL; | |
100 | goto out; | |
101 | } | |
102 | size = PAGE_ALIGN(size); | |
6795c985 DA |
103 | DRM_DEBUG("MGA ucode size = %d bytes\n", size); |
104 | if (size > dev_priv->warp->size) { | |
105 | DRM_ERROR("microcode too large! (%u > %lu)\n", | |
106 | size, dev_priv->warp->size); | |
ece2be79 BH |
107 | rc = -ENOMEM; |
108 | goto out; | |
6795c985 DA |
109 | } |
110 | ||
ece2be79 BH |
111 | memset(dev_priv->warp_pipe_phys, 0, sizeof(dev_priv->warp_pipe_phys)); |
112 | ||
113 | where = 0; | |
114 | for (rec = (const struct ihex_binrec *)fw->data; | |
115 | rec; | |
116 | rec = ihex_next_binrec(rec)) { | |
117 | unsigned int src_size, dst_size; | |
118 | ||
119 | DRM_DEBUG(" pcbase = 0x%08lx vcbase = %p\n", pcbase, vcbase); | |
120 | dev_priv->warp_pipe_phys[where] = pcbase; | |
121 | src_size = be16_to_cpu(rec->len); | |
122 | dst_size = WARP_UCODE_SIZE(src_size); | |
123 | memcpy(vcbase, rec->data, src_size); | |
124 | pcbase += dst_size; | |
125 | vcbase += dst_size; | |
126 | where++; | |
1da177e4 | 127 | } |
ece2be79 BH |
128 | |
129 | out: | |
130 | release_firmware(fw); | |
131 | return rc; | |
1da177e4 LT |
132 | } |
133 | ||
134 | #define WMISC_EXPECTED (MGA_WUCODECACHE_ENABLE | MGA_WMASTER_ENABLE) | |
135 | ||
f2b2cb79 | 136 | int mga_warp_init(drm_mga_private_t *dev_priv) |
1da177e4 LT |
137 | { |
138 | u32 wmisc; | |
139 | ||
140 | /* FIXME: Get rid of these damned magic numbers... | |
141 | */ | |
b5e89ed5 | 142 | switch (dev_priv->chipset) { |
1da177e4 | 143 | case MGA_CARD_TYPE_G400: |
6795c985 DA |
144 | case MGA_CARD_TYPE_G550: |
145 | MGA_WRITE(MGA_WIADDR2, MGA_WMODE_SUSPEND); | |
146 | MGA_WRITE(MGA_WGETMSB, 0x00000E00); | |
147 | MGA_WRITE(MGA_WVRTXSZ, 0x00001807); | |
148 | MGA_WRITE(MGA_WACCEPTSEQ, 0x18000000); | |
1da177e4 LT |
149 | break; |
150 | case MGA_CARD_TYPE_G200: | |
b5e89ed5 DA |
151 | MGA_WRITE(MGA_WIADDR, MGA_WMODE_SUSPEND); |
152 | MGA_WRITE(MGA_WGETMSB, 0x1606); | |
153 | MGA_WRITE(MGA_WVRTXSZ, 7); | |
1da177e4 LT |
154 | break; |
155 | default: | |
20caafa6 | 156 | return -EINVAL; |
1da177e4 LT |
157 | } |
158 | ||
b5e89ed5 DA |
159 | MGA_WRITE(MGA_WMISC, (MGA_WUCODECACHE_ENABLE | |
160 | MGA_WMASTER_ENABLE | MGA_WCACHEFLUSH_ENABLE)); | |
161 | wmisc = MGA_READ(MGA_WMISC); | |
162 | if (wmisc != WMISC_EXPECTED) { | |
163 | DRM_ERROR("WARP engine config failed! 0x%x != 0x%x\n", | |
164 | wmisc, WMISC_EXPECTED); | |
20caafa6 | 165 | return -EINVAL; |
1da177e4 LT |
166 | } |
167 | ||
168 | return 0; | |
169 | } |