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 <drm/drmP.h>
  28#include "radeon.h"
  29#include <drm/radeon_drm.h>
  30
  31#if IS_ENABLED(CONFIG_AGP)
  32
  33struct radeon_agpmode_quirk {
  34        u32 hostbridge_vendor;
  35        u32 hostbridge_device;
  36        u32 chip_vendor;
  37        u32 chip_device;
  38        u32 subsys_vendor;
  39        u32 subsys_device;
  40        u32 default_mode;
  41};
  42
  43static struct radeon_agpmode_quirk radeon_agpmode_quirk_list[] = {
  44        /* Intel E7505 Memory Controller Hub / RV350 AR [Radeon 9600XT] Needs AGPMode 4 (deb #515326) */
  45        { PCI_VENDOR_ID_INTEL, 0x2550, PCI_VENDOR_ID_ATI, 0x4152, 0x1458, 0x4038, 4},
  46        /* Intel 82865G/PE/P DRAM Controller/Host-Hub / Mobility 9800 Needs AGPMode 4 (deb #462590) */
  47        { PCI_VENDOR_ID_INTEL, 0x2570, PCI_VENDOR_ID_ATI, 0x4a4e, PCI_VENDOR_ID_DELL, 0x5106, 4},
  48        /* Intel 82865G/PE/P DRAM Controller/Host-Hub / RV280 [Radeon 9200 SE] Needs AGPMode 4 (lp #300304) */
  49        { PCI_VENDOR_ID_INTEL, 0x2570, PCI_VENDOR_ID_ATI, 0x5964,
  50                0x148c, 0x2073, 4},
  51        /* Intel 82855PM Processor to I/O Controller / Mobility M6 LY Needs AGPMode 1 (deb #467235) */
  52        { PCI_VENDOR_ID_INTEL, 0x3340, PCI_VENDOR_ID_ATI, 0x4c59,
  53                PCI_VENDOR_ID_IBM, 0x052f, 1},
  54        /* Intel 82855PM host bridge / Mobility 9600 M10 RV350 Needs AGPMode 1 (lp #195051) */
  55        { PCI_VENDOR_ID_INTEL, 0x3340, PCI_VENDOR_ID_ATI, 0x4e50,
  56                PCI_VENDOR_ID_IBM, 0x0550, 1},
  57        /* Intel 82855PM host bridge / RV250/M9 GL [Mobility FireGL 9000/Radeon 9000] needs AGPMode 1 (Thinkpad T40p) */
  58        { PCI_VENDOR_ID_INTEL, 0x3340, PCI_VENDOR_ID_ATI, 0x4c66,
  59                PCI_VENDOR_ID_IBM, 0x054d, 1},
  60        /* Intel 82855PM host bridge / Mobility M7 needs AGPMode 1 */
  61        { PCI_VENDOR_ID_INTEL, 0x3340, PCI_VENDOR_ID_ATI, 0x4c57,
  62                PCI_VENDOR_ID_IBM, 0x0530, 1},
  63        /* Intel 82855PM host bridge / FireGL Mobility T2 RV350 Needs AGPMode 2 (fdo #20647) */
  64        { PCI_VENDOR_ID_INTEL, 0x3340, PCI_VENDOR_ID_ATI, 0x4e54,
  65                PCI_VENDOR_ID_IBM, 0x054f, 2},
  66        /* Intel 82855PM host bridge / Mobility M9+ / VaioPCG-V505DX Needs AGPMode 2 (fdo #17928) */
  67        { PCI_VENDOR_ID_INTEL, 0x3340, PCI_VENDOR_ID_ATI, 0x5c61,
  68                PCI_VENDOR_ID_SONY, 0x816b, 2},
  69        /* Intel 82855PM Processor to I/O Controller / Mobility M9+ Needs AGPMode 8 (phoronix forum) */
  70        { PCI_VENDOR_ID_INTEL, 0x3340, PCI_VENDOR_ID_ATI, 0x5c61,
  71                PCI_VENDOR_ID_SONY, 0x8195, 8},
  72        /* Intel 82830 830 Chipset Host Bridge / Mobility M6 LY Needs AGPMode 2 (fdo #17360)*/
  73        { PCI_VENDOR_ID_INTEL, 0x3575, PCI_VENDOR_ID_ATI, 0x4c59,
  74                PCI_VENDOR_ID_DELL, 0x00e3, 2},
  75        /* Intel 82852/82855 host bridge / Mobility FireGL 9000 RV250 Needs AGPMode 1 (lp #296617) */
  76        { PCI_VENDOR_ID_INTEL, 0x3580, PCI_VENDOR_ID_ATI, 0x4c66,
  77                PCI_VENDOR_ID_DELL, 0x0149, 1},
  78        /* Intel 82855PM host bridge / Mobility FireGL 9000 RV250 Needs AGPMode 1 for suspend/resume */
  79        { PCI_VENDOR_ID_INTEL, 0x3340, PCI_VENDOR_ID_ATI, 0x4c66,
  80                PCI_VENDOR_ID_IBM, 0x0531, 1},
  81        /* Intel 82852/82855 host bridge / Mobility 9600 M10 RV350 Needs AGPMode 1 (deb #467460) */
  82        { PCI_VENDOR_ID_INTEL, 0x3580, PCI_VENDOR_ID_ATI, 0x4e50,
  83                0x1025, 0x0061, 1},
  84        /* Intel 82852/82855 host bridge / Mobility 9600 M10 RV350 Needs AGPMode 1 (lp #203007) */
  85        { PCI_VENDOR_ID_INTEL, 0x3580, PCI_VENDOR_ID_ATI, 0x4e50,
  86                0x1025, 0x0064, 1},
  87        /* Intel 82852/82855 host bridge / Mobility 9600 M10 RV350 Needs AGPMode 1 (lp #141551) */
  88        { PCI_VENDOR_ID_INTEL, 0x3580, PCI_VENDOR_ID_ATI, 0x4e50,
  89                PCI_VENDOR_ID_ASUSTEK, 0x1942, 1},
  90        /* Intel 82852/82855 host bridge / Mobility 9600/9700 Needs AGPMode 1 (deb #510208) */
  91        { PCI_VENDOR_ID_INTEL, 0x3580, PCI_VENDOR_ID_ATI, 0x4e50,
  92                0x10cf, 0x127f, 1},
  93        /* ASRock K7VT4A+ AGP 8x / ATI Radeon 9250 AGP Needs AGPMode 4 (lp #133192) */
  94        { 0x1849, 0x3189, PCI_VENDOR_ID_ATI, 0x5960,
  95                0x1787, 0x5960, 4},
  96        /* VIA K8M800 Host Bridge / RV280 [Radeon 9200 PRO] Needs AGPMode 4 (fdo #12544) */
  97        { PCI_VENDOR_ID_VIA, 0x0204, PCI_VENDOR_ID_ATI, 0x5960,
  98                0x17af, 0x2020, 4},
  99        /* VIA KT880 Host Bridge / RV350 [Radeon 9550] Needs AGPMode 4 (fdo #19981) */
 100        { PCI_VENDOR_ID_VIA, 0x0269, PCI_VENDOR_ID_ATI, 0x4153,
 101                PCI_VENDOR_ID_ASUSTEK, 0x003c, 4},
 102        /* VIA VT8363 Host Bridge / R200 QL [Radeon 8500] Needs AGPMode 2 (lp #141551) */
 103        { PCI_VENDOR_ID_VIA, 0x0305, PCI_VENDOR_ID_ATI, 0x514c,
 104                PCI_VENDOR_ID_ATI, 0x013a, 2},
 105        /* VIA VT82C693A Host Bridge / RV280 [Radeon 9200 PRO] Needs AGPMode 2 (deb #515512) */
 106        { PCI_VENDOR_ID_VIA, 0x0691, PCI_VENDOR_ID_ATI, 0x5960,
 107                PCI_VENDOR_ID_ASUSTEK, 0x004c, 2},
 108        /* VIA VT82C693A Host Bridge / RV280 [Radeon 9200 PRO] Needs AGPMode 2 */
 109        { PCI_VENDOR_ID_VIA, 0x0691, PCI_VENDOR_ID_ATI, 0x5960,
 110                PCI_VENDOR_ID_ASUSTEK, 0x0054, 2},
 111        /* VIA VT8377 Host Bridge / R200 QM [Radeon 9100] Needs AGPMode 4 (deb #461144) */
 112        { PCI_VENDOR_ID_VIA, 0x3189, PCI_VENDOR_ID_ATI, 0x514d,
 113                0x174b, 0x7149, 4},
 114        /* VIA VT8377 Host Bridge / RV280 [Radeon 9200 PRO] Needs AGPMode 4 (lp #312693) */
 115        { PCI_VENDOR_ID_VIA, 0x3189, PCI_VENDOR_ID_ATI, 0x5960,
 116                0x1462, 0x0380, 4},
 117        /* VIA VT8377 Host Bridge / RV280 Needs AGPMode 4 (ati ML) */
 118        { PCI_VENDOR_ID_VIA, 0x3189, PCI_VENDOR_ID_ATI, 0x5964,
 119                0x148c, 0x2073, 4},
 120        /* ATI Host Bridge / RV280 [M9+] Needs AGPMode 1 (phoronix forum) */
 121        { PCI_VENDOR_ID_ATI, 0xcbb2, PCI_VENDOR_ID_ATI, 0x5c61,
 122                PCI_VENDOR_ID_SONY, 0x8175, 1},
 123        { 0, 0, 0, 0, 0, 0, 0 },
 124};
 125#endif
 126
 127int radeon_agp_init(struct radeon_device *rdev)
 128{
 129#if IS_ENABLED(CONFIG_AGP)
 130        struct radeon_agpmode_quirk *p = radeon_agpmode_quirk_list;
 131        struct drm_agp_mode mode;
 132        struct drm_agp_info info;
 133        uint32_t agp_status;
 134        int default_mode;
 135        bool is_v3;
 136        int ret;
 137
 138        /* Acquire AGP. */
 139        ret = drm_agp_acquire(rdev->ddev);
 140        if (ret) {
 141                DRM_ERROR("Unable to acquire AGP: %d\n", ret);
 142                return ret;
 143        }
 144
 145        ret = drm_agp_info(rdev->ddev, &info);
 146        if (ret) {
 147                drm_agp_release(rdev->ddev);
 148                DRM_ERROR("Unable to get AGP info: %d\n", ret);
 149                return ret;
 150        }
 151
 152        if (rdev->ddev->agp->agp_info.aper_size < 32) {
 153                drm_agp_release(rdev->ddev);
 154                dev_warn(rdev->dev, "AGP aperture too small (%zuM) "
 155                        "need at least 32M, disabling AGP\n",
 156                        rdev->ddev->agp->agp_info.aper_size);
 157                return -EINVAL;
 158        }
 159
 160        mode.mode = info.mode;
 161        /* chips with the agp to pcie bridge don't have the AGP_STATUS register
 162         * Just use the whatever mode the host sets up.
 163         */
 164        if (rdev->family <= CHIP_RV350)
 165                agp_status = (RREG32(RADEON_AGP_STATUS) | RADEON_AGPv3_MODE) & mode.mode;
 166        else
 167                agp_status = mode.mode;
 168        is_v3 = !!(agp_status & RADEON_AGPv3_MODE);
 169
 170        if (is_v3) {
 171                default_mode = (agp_status & RADEON_AGPv3_8X_MODE) ? 8 : 4;
 172        } else {
 173                if (agp_status & RADEON_AGP_4X_MODE) {
 174                        default_mode = 4;
 175                } else if (agp_status & RADEON_AGP_2X_MODE) {
 176                        default_mode = 2;
 177                } else {
 178                        default_mode = 1;
 179                }
 180        }
 181
 182        /* Apply AGPMode Quirks */
 183        while (p && p->chip_device != 0) {
 184                if (info.id_vendor == p->hostbridge_vendor &&
 185                    info.id_device == p->hostbridge_device &&
 186                    rdev->pdev->vendor == p->chip_vendor &&
 187                    rdev->pdev->device == p->chip_device &&
 188                    rdev->pdev->subsystem_vendor == p->subsys_vendor &&
 189                    rdev->pdev->subsystem_device == p->subsys_device) {
 190                        default_mode = p->default_mode;
 191                }
 192                ++p;
 193        }
 194
 195        if (radeon_agpmode > 0) {
 196                if ((radeon_agpmode < (is_v3 ? 4 : 1)) ||
 197                    (radeon_agpmode > (is_v3 ? 8 : 4)) ||
 198                    (radeon_agpmode & (radeon_agpmode - 1))) {
 199                        DRM_ERROR("Illegal AGP Mode: %d (valid %s), leaving at %d\n",
 200                                  radeon_agpmode, is_v3 ? "4, 8" : "1, 2, 4",
 201                                  default_mode);
 202                        radeon_agpmode = default_mode;
 203                } else {
 204                        DRM_INFO("AGP mode requested: %d\n", radeon_agpmode);
 205                }
 206        } else {
 207                radeon_agpmode = default_mode;
 208        }
 209
 210        mode.mode &= ~RADEON_AGP_MODE_MASK;
 211        if (is_v3) {
 212                switch (radeon_agpmode) {
 213                case 8:
 214                        mode.mode |= RADEON_AGPv3_8X_MODE;
 215                        break;
 216                case 4:
 217                default:
 218                        mode.mode |= RADEON_AGPv3_4X_MODE;
 219                        break;
 220                }
 221        } else {
 222                switch (radeon_agpmode) {
 223                case 4:
 224                        mode.mode |= RADEON_AGP_4X_MODE;
 225                        break;
 226                case 2:
 227                        mode.mode |= RADEON_AGP_2X_MODE;
 228                        break;
 229                case 1:
 230                default:
 231                        mode.mode |= RADEON_AGP_1X_MODE;
 232                        break;
 233                }
 234        }
 235
 236        mode.mode &= ~RADEON_AGP_FW_MODE; /* disable fw */
 237        ret = drm_agp_enable(rdev->ddev, mode);
 238        if (ret) {
 239                DRM_ERROR("Unable to enable AGP (mode = 0x%lx)\n", mode.mode);
 240                drm_agp_release(rdev->ddev);
 241                return ret;
 242        }
 243
 244        rdev->mc.agp_base = rdev->ddev->agp->agp_info.aper_base;
 245        rdev->mc.gtt_size = rdev->ddev->agp->agp_info.aper_size << 20;
 246        rdev->mc.gtt_start = rdev->mc.agp_base;
 247        rdev->mc.gtt_end = rdev->mc.gtt_start + rdev->mc.gtt_size - 1;
 248        dev_info(rdev->dev, "GTT: %lluM 0x%08llX - 0x%08llX\n",
 249                rdev->mc.gtt_size >> 20, rdev->mc.gtt_start, rdev->mc.gtt_end);
 250
 251        /* workaround some hw issues */
 252        if (rdev->family < CHIP_R200) {
 253                WREG32(RADEON_AGP_CNTL, RREG32(RADEON_AGP_CNTL) | 0x000e0000);
 254        }
 255        return 0;
 256#else
 257        return 0;
 258#endif
 259}
 260
 261void radeon_agp_resume(struct radeon_device *rdev)
 262{
 263#if IS_ENABLED(CONFIG_AGP)
 264        int r;
 265        if (rdev->flags & RADEON_IS_AGP) {
 266                r = radeon_agp_init(rdev);
 267                if (r)
 268                        dev_warn(rdev->dev, "radeon AGP reinit failed\n");
 269        }
 270#endif
 271}
 272
 273void radeon_agp_fini(struct radeon_device *rdev)
 274{
 275#if IS_ENABLED(CONFIG_AGP)
 276        if (rdev->ddev->agp && rdev->ddev->agp->acquired) {
 277                drm_agp_release(rdev->ddev);
 278        }
 279#endif
 280}
 281
 282void radeon_agp_suspend(struct radeon_device *rdev)
 283{
 284        radeon_agp_fini(rdev);
 285}
 286