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 30#include <linux/firmware.h> 31#include <linux/ihex.h> 32#include <linux/platform_device.h> 33 34#include "drmP.h" 35#include "drm.h" 36#include "mga_drm.h" 37#include "mga_drv.h" 38 39#define FIRMWARE_G200 "matrox/g200_warp.fw" 40#define FIRMWARE_G400 "matrox/g400_warp.fw" 41 42MODULE_FIRMWARE(FIRMWARE_G200); 43MODULE_FIRMWARE(FIRMWARE_G400); 44 45#define MGA_WARP_CODE_ALIGN 256 /* in bytes */ 46 47#define WARP_UCODE_SIZE(size) ALIGN(size, MGA_WARP_CODE_ALIGN) 48 49int mga_warp_install_microcode(drm_mga_private_t *dev_priv) 50{ 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 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; 66 break; 67 case MGA_CARD_TYPE_G200: 68 firmware_name = FIRMWARE_G200; 69 n_pipes = MGA_MAX_G200_PIPES; 70 break; 71 default: 72 return -EINVAL; 73 } 74 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 } 87 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 } 96 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); 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); 107 rc = -ENOMEM; 108 goto out; 109 } 110 111 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++; 127 } 128 129out: 130 release_firmware(fw); 131 return rc; 132} 133 134#define WMISC_EXPECTED (MGA_WUCODECACHE_ENABLE | MGA_WMASTER_ENABLE) 135 136int mga_warp_init(drm_mga_private_t *dev_priv) 137{ 138 u32 wmisc; 139 140 switch (dev_priv->chipset) { 141 case MGA_CARD_TYPE_G400: 142 case MGA_CARD_TYPE_G550: 143 MGA_WRITE(MGA_WIADDR2, MGA_WMODE_SUSPEND); 144 MGA_WRITE(MGA_WGETMSB, 0x00000E00); 145 MGA_WRITE(MGA_WVRTXSZ, 0x00001807); 146 MGA_WRITE(MGA_WACCEPTSEQ, 0x18000000); 147 break; 148 case MGA_CARD_TYPE_G200: 149 MGA_WRITE(MGA_WIADDR, MGA_WMODE_SUSPEND); 150 MGA_WRITE(MGA_WGETMSB, 0x1606); 151 MGA_WRITE(MGA_WVRTXSZ, 7); 152 break; 153 default: 154 return -EINVAL; 155 } 156 157 MGA_WRITE(MGA_WMISC, (MGA_WUCODECACHE_ENABLE | 158 MGA_WMASTER_ENABLE | MGA_WCACHEFLUSH_ENABLE)); 159 wmisc = MGA_READ(MGA_WMISC); 160 if (wmisc != WMISC_EXPECTED) { 161 DRM_ERROR("WARP engine config failed! 0x%x != 0x%x\n", 162 wmisc, WMISC_EXPECTED); 163 return -EINVAL; 164 } 165 166 return 0; 167} 168