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git.proxmox.com Git - mirror_ubuntu-jammy-kernel.git/blob - drivers/gpu/drm/mga/mga_warp.c
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
4 * Copyright 2000 VA Linux Systems, Inc., Sunnyvale, California.
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:
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
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.
27 * Gareth Hughes <gareth@valinux.com>
30 #include <linux/firmware.h>
31 #include <linux/ihex.h>
32 #include <linux/platform_device.h>
39 #define FIRMWARE_G200 "matrox/g200_warp.fw"
40 #define FIRMWARE_G400 "matrox/g400_warp.fw"
42 MODULE_FIRMWARE(FIRMWARE_G200
);
43 MODULE_FIRMWARE(FIRMWARE_G400
);
45 #define MGA_WARP_CODE_ALIGN 256 /* in bytes */
47 #define WARP_UCODE_SIZE(size) ALIGN(size, MGA_WARP_CODE_ALIGN)
49 int mga_warp_install_microcode(drm_mga_private_t
*dev_priv
)
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
;
61 switch (dev_priv
->chipset
) {
62 case MGA_CARD_TYPE_G400
:
63 case MGA_CARD_TYPE_G550
:
64 firmware_name
= FIRMWARE_G400
;
65 n_pipes
= MGA_MAX_G400_PIPES
;
67 case MGA_CARD_TYPE_G200
:
68 firmware_name
= FIRMWARE_G200
;
69 n_pipes
= MGA_MAX_G200_PIPES
;
75 pdev
= platform_device_register_simple("mga_warp", 0, NULL
, 0);
77 DRM_ERROR("mga: Failed to register microcode\n");
80 rc
= request_ihex_firmware(&fw
, firmware_name
, &pdev
->dev
);
81 platform_device_unregister(pdev
);
83 DRM_ERROR("mga: Failed to load microcode \"%s\"\n",
90 for (rec
= (const struct ihex_binrec
*)fw
->data
;
92 rec
= ihex_next_binrec(rec
)) {
93 size
+= WARP_UCODE_SIZE(be16_to_cpu(rec
->len
));
97 if (where
!= n_pipes
) {
98 DRM_ERROR("mga: Invalid microcode \"%s\"\n", firmware_name
);
102 size
= PAGE_ALIGN(size
);
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
);
111 memset(dev_priv
->warp_pipe_phys
, 0, sizeof(dev_priv
->warp_pipe_phys
));
114 for (rec
= (const struct ihex_binrec
*)fw
->data
;
116 rec
= ihex_next_binrec(rec
)) {
117 unsigned int src_size
, dst_size
;
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
);
130 release_firmware(fw
);
134 #define WMISC_EXPECTED (MGA_WUCODECACHE_ENABLE | MGA_WMASTER_ENABLE)
136 int mga_warp_init(drm_mga_private_t
*dev_priv
)
140 /* FIXME: Get rid of these damned magic numbers...
142 switch (dev_priv
->chipset
) {
143 case MGA_CARD_TYPE_G400
:
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);
150 case MGA_CARD_TYPE_G200
:
151 MGA_WRITE(MGA_WIADDR
, MGA_WMODE_SUSPEND
);
152 MGA_WRITE(MGA_WGETMSB
, 0x1606);
153 MGA_WRITE(MGA_WVRTXSZ
, 7);
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
);