LXR linux/drivers/gpu/drm/radeon/radeon

   1/*
   2 * Copyright 2008 Red Hat Inc.
   3 * Copyright 2009 Jerome Glisse.
   4 *
   5 * Permission is hereby granted, free of charge, to any person obtaining a
   6 * copy of this software and associated documentation files (the "Software"),
   7 * to deal in the Software without restriction, including without limitation
   8 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
   9 * and/or sell copies of the Software, and to permit persons to whom the
  10 * Software is furnished to do so, subject to the following conditions:
  11 *
  12 * The above copyright notice and this permission notice shall be included in
  13 * all copies or substantial portions of the Software.
  14 *
  15 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  16 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  17 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
  18 * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
  19 * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
  20 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
  21 * OTHER DEALINGS IN THE SOFTWARE.
  22 *
  23 * Authors:
  24 *    Dave Airlie
  25 *    Jerome Glisse <glisse@freedesktop.org>
  26 */
  27#include "drmP.h"
  28#include "drm.h"
  29#include "radeon.h"
  30#include "radeon_drm.h"
  31
  32#if __OS_HAS_AGP
  33
  34struct radeon_agpmode_quirk {
  35        u32 hostbridge_vendor;
  36        u32 hostbridge_device;
  37        u32 chip_vendor;
  38        u32 chip_device;
  39        u32 subsys_vendor;
  40        u32 subsys_device;
  41        u32 default_mode;
  42};
  43
  44static struct radeon_agpmode_quirk radeon_agpmode_quirk_list[] = {
  45        /* Intel E7505 Memory Controller Hub / RV350 AR [Radeon 9600XT] Needs AGPMode 4 (deb #515326) */
  46        { PCI_VENDOR_ID_INTEL, 0x2550, PCI_VENDOR_ID_ATI, 0x4152, 0x1458, 0x4038, 4},
  47        /* Intel 82865G/PE/P DRAM Controller/Host-Hub / Mobility 9800 Needs AGPMode 4 (deb #462590) */
  48        { PCI_VENDOR_ID_INTEL, 0x2570, PCI_VENDOR_ID_ATI, 0x4a4e, PCI_VENDOR_ID_DELL, 0x5106, 4},
  49        /* Intel 82865G/PE/P DRAM Controller/Host-Hub / RV280 [Radeon 9200 SE] Needs AGPMode 4 (lp #300304) */
  50        { PCI_VENDOR_ID_INTEL, 0x2570, PCI_VENDOR_ID_ATI, 0x5964,
  51                0x148c, 0x2073, 4},
  52        /* Intel 82855PM Processor to I/O Controller / Mobility M6 LY Needs AGPMode 1 (deb #467235) */
  53        { PCI_VENDOR_ID_INTEL, 0x3340, PCI_VENDOR_ID_ATI, 0x4c59,
  54                PCI_VENDOR_ID_IBM, 0x052f, 1},
  55        /* Intel 82855PM host bridge / Mobility 9600 M10 RV350 Needs AGPMode 1 (lp #195051) */
  56        { PCI_VENDOR_ID_INTEL, 0x3340, PCI_VENDOR_ID_ATI, 0x4e50,
  57                PCI_VENDOR_ID_IBM, 0x0550, 1},
  58        /* Intel 82855PM host bridge / Mobility M7 needs AGPMode 1 */
  59        { PCI_VENDOR_ID_INTEL, 0x3340, PCI_VENDOR_ID_ATI, 0x4c57,
  60                PCI_VENDOR_ID_IBM, 0x0530, 1},
  61        /* Intel 82855PM host bridge / FireGL Mobility T2 RV350 Needs AGPMode 2 (fdo #20647) */
  62        { PCI_VENDOR_ID_INTEL, 0x3340, PCI_VENDOR_ID_ATI, 0x4e54,
  63                PCI_VENDOR_ID_IBM, 0x054f, 2},
  64        /* Intel 82855PM host bridge / Mobility M9+ / VaioPCG-V505DX Needs AGPMode 2 (fdo #17928) */
  65        { PCI_VENDOR_ID_INTEL, 0x3340, PCI_VENDOR_ID_ATI, 0x5c61,
  66                PCI_VENDOR_ID_SONY, 0x816b, 2},
  67        /* Intel 82855PM Processor to I/O Controller / Mobility M9+ Needs AGPMode 8 (phoronix forum) */
  68        { PCI_VENDOR_ID_INTEL, 0x3340, PCI_VENDOR_ID_ATI, 0x5c61,
  69                PCI_VENDOR_ID_SONY, 0x8195, 8},
  70        /* Intel 82830 830 Chipset Host Bridge / Mobility M6 LY Needs AGPMode 2 (fdo #17360)*/
  71        { PCI_VENDOR_ID_INTEL, 0x3575, PCI_VENDOR_ID_ATI, 0x4c59,
  72                PCI_VENDOR_ID_DELL, 0x00e3, 2},
  73        /* Intel 82852/82855 host bridge / Mobility FireGL 9000 R250 Needs AGPMode 1 (lp #296617) */
  74        { PCI_VENDOR_ID_INTEL, 0x3580, PCI_VENDOR_ID_ATI, 0x4c66,
  75                PCI_VENDOR_ID_DELL, 0x0149, 1},
  76        /* Intel 82852/82855 host bridge / Mobility 9600 M10 RV350 Needs AGPMode 1 (deb #467460) */
  77        { PCI_VENDOR_ID_INTEL, 0x3580, PCI_VENDOR_ID_ATI, 0x4e50,
  78                0x1025, 0x0061, 1},
  79        /* Intel 82852/82855 host bridge / Mobility 9600 M10 RV350 Needs AGPMode 1 (lp #203007) */
  80        { PCI_VENDOR_ID_INTEL, 0x3580, PCI_VENDOR_ID_ATI, 0x4e50,
  81                0x1025, 0x0064, 1},
  82        /* Intel 82852/82855 host bridge / Mobility 9600 M10 RV350 Needs AGPMode 1 (lp #141551) */
  83        { PCI_VENDOR_ID_INTEL, 0x3580, PCI_VENDOR_ID_ATI, 0x4e50,
  84                PCI_VENDOR_ID_ASUSTEK, 0x1942, 1},
  85        /* Intel 82852/82855 host bridge / Mobility 9600/9700 Needs AGPMode 1 (deb #510208) */
  86        { PCI_VENDOR_ID_INTEL, 0x3580, PCI_VENDOR_ID_ATI, 0x4e50,
  87                0x10cf, 0x127f, 1},
  88        /* ASRock K7VT4A+ AGP 8x / ATI Radeon 9250 AGP Needs AGPMode 4 (lp #133192) */
  89        { 0x1849, 0x3189, PCI_VENDOR_ID_ATI, 0x5960,
  90                0x1787, 0x5960, 4},
  91        /* VIA K8M800 Host Bridge / RV280 [Radeon 9200 PRO] Needs AGPMode 4 (fdo #12544) */
  92        { PCI_VENDOR_ID_VIA, 0x0204, PCI_VENDOR_ID_ATI, 0x5960,
  93                0x17af, 0x2020, 4},
  94        /* VIA KT880 Host Bridge / RV350 [Radeon 9550] Needs AGPMode 4 (fdo #19981) */
  95        { PCI_VENDOR_ID_VIA, 0x0269, PCI_VENDOR_ID_ATI, 0x4153,
  96                PCI_VENDOR_ID_ASUSTEK, 0x003c, 4},
  97        /* VIA VT8363 Host Bridge / R200 QL [Radeon 8500] Needs AGPMode 2 (lp #141551) */
  98        { PCI_VENDOR_ID_VIA, 0x0305, PCI_VENDOR_ID_ATI, 0x514c,
  99                PCI_VENDOR_ID_ATI, 0x013a, 2},
 100        /* VIA VT82C693A Host Bridge / RV280 [Radeon 9200 PRO] Needs AGPMode 2 (deb #515512) */
 101        { PCI_VENDOR_ID_VIA, 0x0691, PCI_VENDOR_ID_ATI, 0x5960,
 102                PCI_VENDOR_ID_ASUSTEK, 0x004c, 2},
 103        /* VIA VT82C693A Host Bridge / RV280 [Radeon 9200 PRO] Needs AGPMode 2 */
 104        { PCI_VENDOR_ID_VIA, 0x0691, PCI_VENDOR_ID_ATI, 0x5960,
 105                PCI_VENDOR_ID_ASUSTEK, 0x0054, 2},
 106        /* VIA VT8377 Host Bridge / R200 QM [Radeon 9100] Needs AGPMode 4 (deb #461144) */
 107        { PCI_VENDOR_ID_VIA, 0x3189, PCI_VENDOR_ID_ATI, 0x514d,
 108                0x174b, 0x7149, 4},
 109        /* VIA VT8377 Host Bridge / RV280 [Radeon 9200 PRO] Needs AGPMode 4 (lp #312693) */
 110        { PCI_VENDOR_ID_VIA, 0x3189, PCI_VENDOR_ID_ATI, 0x5960,
 111                0x1462, 0x0380, 4},
 112        /* VIA VT8377 Host Bridge / RV280 Needs AGPMode 4 (ati ML) */
 113        { PCI_VENDOR_ID_VIA, 0x3189, PCI_VENDOR_ID_ATI, 0x5964,
 114                0x148c, 0x2073, 4},
 115        /* ATI Host Bridge / RV280 [M9+] Needs AGPMode 1 (phoronix forum) */
 116        { PCI_VENDOR_ID_ATI, 0xcbb2, PCI_VENDOR_ID_ATI, 0x5c61,
 117                PCI_VENDOR_ID_SONY, 0x8175, 1},
 118        /* HP Host Bridge / R300 [FireGL X1] Needs AGPMode 2 (fdo #7770) */
 119        { PCI_VENDOR_ID_HP, 0x122e, PCI_VENDOR_ID_ATI, 0x4e47,
 120                PCI_VENDOR_ID_ATI, 0x0152, 2},
 121        { 0, 0, 0, 0, 0, 0, 0 },
 122};
 123#endif
 124
 125int radeon_agp_init(struct radeon_device *rdev)
 126{
 127#if __OS_HAS_AGP
 128        struct radeon_agpmode_quirk *p = radeon_agpmode_quirk_list;
 129        struct drm_agp_mode mode;
 130        struct drm_agp_info info;
 131        uint32_t agp_status;
 132        int default_mode;
 133        bool is_v3;
 134        int ret;
 135
 136        /* Acquire AGP. */
 137        if (!rdev->ddev->agp->acquired) {
 138                ret = drm_agp_acquire(rdev->ddev);
 139                if (ret) {
 140                        DRM_ERROR("Unable to acquire AGP: %d\n", ret);
 141                        return ret;
 142                }
 143        }
 144
 145        ret = drm_agp_info(rdev->ddev, &info);
 146        if (ret) {
 147                DRM_ERROR("Unable to get AGP info: %d\n", ret);
 148                return ret;
 149        }
 150        mode.mode = info.mode;
 151        agp_status = (RREG32(RADEON_AGP_STATUS) | RADEON_AGPv3_MODE) & mode.mode;
 152        is_v3 = !!(agp_status & RADEON_AGPv3_MODE);
 153
 154        if (is_v3) {
 155                default_mode = (agp_status & RADEON_AGPv3_8X_MODE) ? 8 : 4;
 156        } else {
 157                if (agp_status & RADEON_AGP_4X_MODE) {
 158                        default_mode = 4;
 159                } else if (agp_status & RADEON_AGP_2X_MODE) {
 160                        default_mode = 2;
 161                } else {
 162                        default_mode = 1;
 163                }
 164        }
 165
 166        /* Apply AGPMode Quirks */
 167        while (p && p->chip_device != 0) {
 168                if (info.id_vendor == p->hostbridge_vendor &&
 169                    info.id_device == p->hostbridge_device &&
 170                    rdev->pdev->vendor == p->chip_vendor &&
 171                    rdev->pdev->device == p->chip_device &&
 172                    rdev->pdev->subsystem_vendor == p->subsys_vendor &&
 173                    rdev->pdev->subsystem_device == p->subsys_device) {
 174                        default_mode = p->default_mode;
 175                }
 176                ++p;
 177        }
 178
 179        if (radeon_agpmode > 0) {
 180                if ((radeon_agpmode < (is_v3 ? 4 : 1)) ||
 181                    (radeon_agpmode > (is_v3 ? 8 : 4)) ||
 182                    (radeon_agpmode & (radeon_agpmode - 1))) {
 183                        DRM_ERROR("Illegal AGP Mode: %d (valid %s), leaving at %d\n",
 184                                  radeon_agpmode, is_v3 ? "4, 8" : "1, 2, 4",
 185                                  default_mode);
 186                        radeon_agpmode = default_mode;
 187                } else {
 188                        DRM_INFO("AGP mode requested: %d\n", radeon_agpmode);
 189                }
 190        } else {
 191                radeon_agpmode = default_mode;
 192        }
 193
 194        mode.mode &= ~RADEON_AGP_MODE_MASK;
 195        if (is_v3) {
 196                switch (radeon_agpmode) {
 197                case 8:
 198                        mode.mode |= RADEON_AGPv3_8X_MODE;
 199                        break;
 200                case 4:
 201                default:
 202                        mode.mode |= RADEON_AGPv3_4X_MODE;
 203                        break;
 204                }
 205        } else {
 206                switch (radeon_agpmode) {
 207                case 4:
 208                        mode.mode |= RADEON_AGP_4X_MODE;
 209                        break;
 210                case 2:
 211                        mode.mode |= RADEON_AGP_2X_MODE;
 212                        break;
 213                case 1:
 214                default:
 215                        mode.mode |= RADEON_AGP_1X_MODE;
 216                        break;
 217                }
 218        }
 219
 220        mode.mode &= ~RADEON_AGP_FW_MODE; /* disable fw */
 221        ret = drm_agp_enable(rdev->ddev, mode);
 222        if (ret) {
 223                DRM_ERROR("Unable to enable AGP (mode = 0x%lx)\n", mode.mode);
 224                return ret;
 225        }
 226
 227        rdev->mc.agp_base = rdev->ddev->agp->agp_info.aper_base;
 228        rdev->mc.gtt_size = rdev->ddev->agp->agp_info.aper_size << 20;
 229
 230        /* workaround some hw issues */
 231        if (rdev->family < CHIP_R200) {
 232                WREG32(RADEON_AGP_CNTL, RREG32(RADEON_AGP_CNTL) | 0x000e0000);
 233        }
 234        return 0;
 235#else
 236        return 0;
 237#endif
 238}
 239
 240void radeon_agp_resume(struct radeon_device *rdev)
 241{
 242#if __OS_HAS_AGP
 243        int r;
 244        if (rdev->flags & RADEON_IS_AGP) {
 245                r = radeon_agp_init(rdev);
 246                if (r)
 247                        dev_warn(rdev->dev, "radeon AGP reinit failed\n");
 248        }
 249#endif
 250}
 251
 252void radeon_agp_fini(struct radeon_device *rdev)
 253{
 254#if __OS_HAS_AGP
 255        if (rdev->flags & RADEON_IS_AGP) {
 256                if (rdev->ddev->agp && rdev->ddev->agp->acquired) {
 257                        drm_agp_release(rdev->ddev);
 258                }
 259        }
 260#endif
 261}
 262