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

   1/**
   2 * \file radeon_drv.c
   3 * ATI Radeon driver
   4 *
   5 * \author Gareth Hughes <gareth@valinux.com>
   6 */
   7
   8/*
   9 * Copyright 2000 VA Linux Systems, Inc., Sunnyvale, California.
  10 * All Rights Reserved.
  11 *
  12 * Permission is hereby granted, free of charge, to any person obtaining a
  13 * copy of this software and associated documentation files (the "Software"),
  14 * to deal in the Software without restriction, including without limitation
  15 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
  16 * and/or sell copies of the Software, and to permit persons to whom the
  17 * Software is furnished to do so, subject to the following conditions:
  18 *
  19 * The above copyright notice and this permission notice (including the next
  20 * paragraph) shall be included in all copies or substantial portions of the
  21 * Software.
  22 *
  23 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  24 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  25 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
  26 * VA LINUX SYSTEMS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
  27 * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
  28 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
  29 * OTHER DEALINGS IN THE SOFTWARE.
  30 */
  31
  32#include "drmP.h"
  33#include "drm.h"
  34#include "radeon_drm.h"
  35#include "radeon_drv.h"
  36
  37#include "drm_pciids.h"
  38#include <linux/console.h>
  39
  40
  41/*
  42 * KMS wrapper.
  43 * - 2.0.0 - initial interface
  44 * - 2.1.0 - add square tiling interface
  45 * - 2.2.0 - add r6xx/r7xx const buffer support
  46 * - 2.3.0 - add MSPOS + 3D texture + r500 VAP regs
  47 * - 2.4.0 - add crtc id query
  48 * - 2.5.0 - add get accel 2 to work around ddx breakage for evergreen
  49 * - 2.6.0 - add tiling config query (r6xx+), add initial HiZ support (r300->r500)
  50 *   2.7.0 - fixups for r600 2D tiling support. (no external ABI change), add eg dyn gpr regs
  51 *   2.8.0 - pageflip support, r500 US_FORMAT regs. r500 ARGB2101010 colorbuf, r300->r500 CMASK, clock crystal query
  52 */
  53#define KMS_DRIVER_MAJOR        2
  54#define KMS_DRIVER_MINOR        8
  55#define KMS_DRIVER_PATCHLEVEL   0
  56int radeon_driver_load_kms(struct drm_device *dev, unsigned long flags);
  57int radeon_driver_unload_kms(struct drm_device *dev);
  58int radeon_driver_firstopen_kms(struct drm_device *dev);
  59void radeon_driver_lastclose_kms(struct drm_device *dev);
  60int radeon_driver_open_kms(struct drm_device *dev, struct drm_file *file_priv);
  61void radeon_driver_postclose_kms(struct drm_device *dev,
  62                                 struct drm_file *file_priv);
  63void radeon_driver_preclose_kms(struct drm_device *dev,
  64                                struct drm_file *file_priv);
  65int radeon_suspend_kms(struct drm_device *dev, pm_message_t state);
  66int radeon_resume_kms(struct drm_device *dev);
  67u32 radeon_get_vblank_counter_kms(struct drm_device *dev, int crtc);
  68int radeon_enable_vblank_kms(struct drm_device *dev, int crtc);
  69void radeon_disable_vblank_kms(struct drm_device *dev, int crtc);
  70int radeon_get_vblank_timestamp_kms(struct drm_device *dev, int crtc,
  71                                    int *max_error,
  72                                    struct timeval *vblank_time,
  73                                    unsigned flags);
  74void radeon_driver_irq_preinstall_kms(struct drm_device *dev);
  75int radeon_driver_irq_postinstall_kms(struct drm_device *dev);
  76void radeon_driver_irq_uninstall_kms(struct drm_device *dev);
  77irqreturn_t radeon_driver_irq_handler_kms(DRM_IRQ_ARGS);
  78int radeon_dma_ioctl_kms(struct drm_device *dev, void *data,
  79                         struct drm_file *file_priv);
  80int radeon_gem_object_init(struct drm_gem_object *obj);
  81void radeon_gem_object_free(struct drm_gem_object *obj);
  82extern int radeon_get_crtc_scanoutpos(struct drm_device *dev, int crtc,
  83                                      int *vpos, int *hpos);
  84extern struct drm_ioctl_desc radeon_ioctls_kms[];
  85extern int radeon_max_kms_ioctl;
  86int radeon_mmap(struct file *filp, struct vm_area_struct *vma);
  87#if defined(CONFIG_DEBUG_FS)
  88int radeon_debugfs_init(struct drm_minor *minor);
  89void radeon_debugfs_cleanup(struct drm_minor *minor);
  90#endif
  91
  92
  93int radeon_no_wb;
  94int radeon_modeset = -1;
  95int radeon_dynclks = -1;
  96int radeon_r4xx_atom = 0;
  97int radeon_agpmode = 0;
  98int radeon_vram_limit = 0;
  99int radeon_gart_size = 512; /* default gart size */
 100int radeon_benchmarking = 0;
 101int radeon_testing = 0;
 102int radeon_connector_table = 0;
 103int radeon_tv = 1;
 104int radeon_audio = 1;
 105int radeon_disp_priority = 0;
 106int radeon_hw_i2c = 0;
 107int radeon_pcie_gen2 = 0;
 108
 109MODULE_PARM_DESC(no_wb, "Disable AGP writeback for scratch registers");
 110module_param_named(no_wb, radeon_no_wb, int, 0444);
 111
 112MODULE_PARM_DESC(modeset, "Disable/Enable modesetting");
 113module_param_named(modeset, radeon_modeset, int, 0400);
 114
 115MODULE_PARM_DESC(dynclks, "Disable/Enable dynamic clocks");
 116module_param_named(dynclks, radeon_dynclks, int, 0444);
 117
 118MODULE_PARM_DESC(r4xx_atom, "Enable ATOMBIOS modesetting for R4xx");
 119module_param_named(r4xx_atom, radeon_r4xx_atom, int, 0444);
 120
 121MODULE_PARM_DESC(vramlimit, "Restrict VRAM for testing");
 122module_param_named(vramlimit, radeon_vram_limit, int, 0600);
 123
 124MODULE_PARM_DESC(agpmode, "AGP Mode (-1 == PCI)");
 125module_param_named(agpmode, radeon_agpmode, int, 0444);
 126
 127MODULE_PARM_DESC(gartsize, "Size of PCIE/IGP gart to setup in megabytes (32,64, etc)\n");
 128module_param_named(gartsize, radeon_gart_size, int, 0600);
 129
 130MODULE_PARM_DESC(benchmark, "Run benchmark");
 131module_param_named(benchmark, radeon_benchmarking, int, 0444);
 132
 133MODULE_PARM_DESC(test, "Run tests");
 134module_param_named(test, radeon_testing, int, 0444);
 135
 136MODULE_PARM_DESC(connector_table, "Force connector table");
 137module_param_named(connector_table, radeon_connector_table, int, 0444);
 138
 139MODULE_PARM_DESC(tv, "TV enable (0 = disable)");
 140module_param_named(tv, radeon_tv, int, 0444);
 141
 142MODULE_PARM_DESC(audio, "Audio enable (0 = disable)");
 143module_param_named(audio, radeon_audio, int, 0444);
 144
 145MODULE_PARM_DESC(disp_priority, "Display Priority (0 = auto, 1 = normal, 2 = high)");
 146module_param_named(disp_priority, radeon_disp_priority, int, 0444);
 147
 148MODULE_PARM_DESC(hw_i2c, "hw i2c engine enable (0 = disable)");
 149module_param_named(hw_i2c, radeon_hw_i2c, int, 0444);
 150
 151MODULE_PARM_DESC(pcie_gen2, "PCIE Gen2 mode (1 = enable)");
 152module_param_named(pcie_gen2, radeon_pcie_gen2, int, 0444);
 153
 154static int radeon_suspend(struct drm_device *dev, pm_message_t state)
 155{
 156        drm_radeon_private_t *dev_priv = dev->dev_private;
 157
 158        if ((dev_priv->flags & RADEON_FAMILY_MASK) >= CHIP_R600)
 159                return 0;
 160
 161        /* Disable *all* interrupts */
 162        if ((dev_priv->flags & RADEON_FAMILY_MASK) >= CHIP_RS600)
 163                RADEON_WRITE(R500_DxMODE_INT_MASK, 0);
 164        RADEON_WRITE(RADEON_GEN_INT_CNTL, 0);
 165        return 0;
 166}
 167
 168static int radeon_resume(struct drm_device *dev)
 169{
 170        drm_radeon_private_t *dev_priv = dev->dev_private;
 171
 172        if ((dev_priv->flags & RADEON_FAMILY_MASK) >= CHIP_R600)
 173                return 0;
 174
 175        /* Restore interrupt registers */
 176        if ((dev_priv->flags & RADEON_FAMILY_MASK) >= CHIP_RS600)
 177                RADEON_WRITE(R500_DxMODE_INT_MASK, dev_priv->r500_disp_irq_reg);
 178        RADEON_WRITE(RADEON_GEN_INT_CNTL, dev_priv->irq_enable_reg);
 179        return 0;
 180}
 181
 182static struct pci_device_id pciidlist[] = {
 183        radeon_PCI_IDS
 184};
 185
 186#if defined(CONFIG_DRM_RADEON_KMS)
 187MODULE_DEVICE_TABLE(pci, pciidlist);
 188#endif
 189
 190static struct drm_driver driver_old = {
 191        .driver_features =
 192            DRIVER_USE_AGP | DRIVER_USE_MTRR | DRIVER_PCI_DMA | DRIVER_SG |
 193            DRIVER_HAVE_IRQ | DRIVER_HAVE_DMA | DRIVER_IRQ_SHARED,
 194        .dev_priv_size = sizeof(drm_radeon_buf_priv_t),
 195        .load = radeon_driver_load,
 196        .firstopen = radeon_driver_firstopen,
 197        .open = radeon_driver_open,
 198        .preclose = radeon_driver_preclose,
 199        .postclose = radeon_driver_postclose,
 200        .lastclose = radeon_driver_lastclose,
 201        .unload = radeon_driver_unload,
 202        .suspend = radeon_suspend,
 203        .resume = radeon_resume,
 204        .get_vblank_counter = radeon_get_vblank_counter,
 205        .enable_vblank = radeon_enable_vblank,
 206        .disable_vblank = radeon_disable_vblank,
 207        .master_create = radeon_master_create,
 208        .master_destroy = radeon_master_destroy,
 209        .irq_preinstall = radeon_driver_irq_preinstall,
 210        .irq_postinstall = radeon_driver_irq_postinstall,
 211        .irq_uninstall = radeon_driver_irq_uninstall,
 212        .irq_handler = radeon_driver_irq_handler,
 213        .reclaim_buffers = drm_core_reclaim_buffers,
 214        .ioctls = radeon_ioctls,
 215        .dma_ioctl = radeon_cp_buffers,
 216        .fops = {
 217                 .owner = THIS_MODULE,
 218                 .open = drm_open,
 219                 .release = drm_release,
 220                 .unlocked_ioctl = drm_ioctl,
 221                 .mmap = drm_mmap,
 222                 .poll = drm_poll,
 223                 .fasync = drm_fasync,
 224                 .read = drm_read,
 225#ifdef CONFIG_COMPAT
 226                 .compat_ioctl = radeon_compat_ioctl,
 227#endif
 228                 .llseek = noop_llseek,
 229        },
 230
 231        .pci_driver = {
 232                 .name = DRIVER_NAME,
 233                 .id_table = pciidlist,
 234        },
 235
 236        .name = DRIVER_NAME,
 237        .desc = DRIVER_DESC,
 238        .date = DRIVER_DATE,
 239        .major = DRIVER_MAJOR,
 240        .minor = DRIVER_MINOR,
 241        .patchlevel = DRIVER_PATCHLEVEL,
 242};
 243
 244static struct drm_driver kms_driver;
 245
 246static void radeon_kick_out_firmware_fb(struct pci_dev *pdev)
 247{
 248        struct apertures_struct *ap;
 249        bool primary = false;
 250
 251        ap = alloc_apertures(1);
 252        ap->ranges[0].base = pci_resource_start(pdev, 0);
 253        ap->ranges[0].size = pci_resource_len(pdev, 0);
 254
 255#ifdef CONFIG_X86
 256        primary = pdev->resource[PCI_ROM_RESOURCE].flags & IORESOURCE_ROM_SHADOW;
 257#endif
 258        remove_conflicting_framebuffers(ap, "radeondrmfb", primary);
 259        kfree(ap);
 260}
 261
 262static int __devinit
 263radeon_pci_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
 264{
 265        /* Get rid of things like offb */
 266        radeon_kick_out_firmware_fb(pdev);
 267
 268        return drm_get_pci_dev(pdev, ent, &kms_driver);
 269}
 270
 271static void
 272radeon_pci_remove(struct pci_dev *pdev)
 273{
 274        struct drm_device *dev = pci_get_drvdata(pdev);
 275
 276        drm_put_dev(dev);
 277}
 278
 279static int
 280radeon_pci_suspend(struct pci_dev *pdev, pm_message_t state)
 281{
 282        struct drm_device *dev = pci_get_drvdata(pdev);
 283        return radeon_suspend_kms(dev, state);
 284}
 285
 286static int
 287radeon_pci_resume(struct pci_dev *pdev)
 288{
 289        struct drm_device *dev = pci_get_drvdata(pdev);
 290        return radeon_resume_kms(dev);
 291}
 292
 293static struct drm_driver kms_driver = {
 294        .driver_features =
 295            DRIVER_USE_AGP | DRIVER_USE_MTRR | DRIVER_PCI_DMA | DRIVER_SG |
 296            DRIVER_HAVE_IRQ | DRIVER_HAVE_DMA | DRIVER_IRQ_SHARED | DRIVER_GEM,
 297        .dev_priv_size = 0,
 298        .load = radeon_driver_load_kms,
 299        .firstopen = radeon_driver_firstopen_kms,
 300        .open = radeon_driver_open_kms,
 301        .preclose = radeon_driver_preclose_kms,
 302        .postclose = radeon_driver_postclose_kms,
 303        .lastclose = radeon_driver_lastclose_kms,
 304        .unload = radeon_driver_unload_kms,
 305        .suspend = radeon_suspend_kms,
 306        .resume = radeon_resume_kms,
 307        .get_vblank_counter = radeon_get_vblank_counter_kms,
 308        .enable_vblank = radeon_enable_vblank_kms,
 309        .disable_vblank = radeon_disable_vblank_kms,
 310        .get_vblank_timestamp = radeon_get_vblank_timestamp_kms,
 311        .get_scanout_position = radeon_get_crtc_scanoutpos,
 312#if defined(CONFIG_DEBUG_FS)
 313        .debugfs_init = radeon_debugfs_init,
 314        .debugfs_cleanup = radeon_debugfs_cleanup,
 315#endif
 316        .irq_preinstall = radeon_driver_irq_preinstall_kms,
 317        .irq_postinstall = radeon_driver_irq_postinstall_kms,
 318        .irq_uninstall = radeon_driver_irq_uninstall_kms,
 319        .irq_handler = radeon_driver_irq_handler_kms,
 320        .reclaim_buffers = drm_core_reclaim_buffers,
 321        .ioctls = radeon_ioctls_kms,
 322        .gem_init_object = radeon_gem_object_init,
 323        .gem_free_object = radeon_gem_object_free,
 324        .dma_ioctl = radeon_dma_ioctl_kms,
 325        .fops = {
 326                 .owner = THIS_MODULE,
 327                 .open = drm_open,
 328                 .release = drm_release,
 329                 .unlocked_ioctl = drm_ioctl,
 330                 .mmap = radeon_mmap,
 331                 .poll = drm_poll,
 332                 .fasync = drm_fasync,
 333                 .read = drm_read,
 334#ifdef CONFIG_COMPAT
 335                 .compat_ioctl = radeon_kms_compat_ioctl,
 336#endif
 337        },
 338
 339        .pci_driver = {
 340                 .name = DRIVER_NAME,
 341                 .id_table = pciidlist,
 342                 .probe = radeon_pci_probe,
 343                 .remove = radeon_pci_remove,
 344                 .suspend = radeon_pci_suspend,
 345                 .resume = radeon_pci_resume,
 346        },
 347
 348        .name = DRIVER_NAME,
 349        .desc = DRIVER_DESC,
 350        .date = DRIVER_DATE,
 351        .major = KMS_DRIVER_MAJOR,
 352        .minor = KMS_DRIVER_MINOR,
 353        .patchlevel = KMS_DRIVER_PATCHLEVEL,
 354};
 355
 356static struct drm_driver *driver;
 357
 358static int __init radeon_init(void)
 359{
 360        driver = &driver_old;
 361        driver->num_ioctls = radeon_max_ioctl;
 362#ifdef CONFIG_VGA_CONSOLE
 363        if (vgacon_text_force() && radeon_modeset == -1) {
 364                DRM_INFO("VGACON disable radeon kernel modesetting.\n");
 365                driver = &driver_old;
 366                driver->driver_features &= ~DRIVER_MODESET;
 367                radeon_modeset = 0;
 368        }
 369#endif
 370        /* if enabled by default */
 371        if (radeon_modeset == -1) {
 372#ifdef CONFIG_DRM_RADEON_KMS
 373                DRM_INFO("radeon defaulting to kernel modesetting.\n");
 374                radeon_modeset = 1;
 375#else
 376                DRM_INFO("radeon defaulting to userspace modesetting.\n");
 377                radeon_modeset = 0;
 378#endif
 379        }
 380        if (radeon_modeset == 1) {
 381                DRM_INFO("radeon kernel modesetting enabled.\n");
 382                driver = &kms_driver;
 383                driver->driver_features |= DRIVER_MODESET;
 384                driver->num_ioctls = radeon_max_kms_ioctl;
 385                radeon_register_atpx_handler();
 386        }
 387        /* if the vga console setting is enabled still
 388         * let modprobe override it */
 389        return drm_init(driver);
 390}
 391
 392static void __exit radeon_exit(void)
 393{
 394        drm_exit(driver);
 395        radeon_unregister_atpx_handler();
 396}
 397
 398module_init(radeon_init);
 399module_exit(radeon_exit);
 400
 401MODULE_AUTHOR(DRIVER_AUTHOR);
 402MODULE_DESCRIPTION(DRIVER_DESC);
 403MODULE_LICENSE("GPL and additional rights");
 404