sys/external/bsd/drm/dist/shared-core/via_drv.c

   1 /*
   2  * Copyright 1998-2003 VIA Technologies, Inc. All Rights Reserved.
   3  * Copyright 2001-2003 S3 Graphics, Inc. All Rights Reserved.
   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, sub license,
   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 (including the
  13  * next paragraph) shall be included in all copies or substantial portions
  14  * of the Software.
  15  *
  16  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  17  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  18  * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL
  19  * VIA, S3 GRAPHICS, AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
  20  * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
  21  * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
  22  * DEALINGS IN THE SOFTWARE.
  23  */
  24
  25 #include "drmP.h"
  26 #include "via_drm.h"
  27 #include "via_drv.h"
  28
  29 #include "drm_pciids.h"
  30
  31
  32 static int dri_library_name(struct drm_device * dev, char * buf)
  33 {
  34         return snprintf(buf, PAGE_SIZE, "unichrome\n");
  35 }
  36
  37 static struct pci_device_id pciidlist[] = {
  38         viadrv_PCI_IDS
  39 };
  40
  41
  42 #ifdef VIA_HAVE_FENCE
  43 extern struct drm_fence_driver via_fence_driver;
  44 #endif
  45
  46 #ifdef VIA_HAVE_BUFFER
  47
  48 /**
  49  * If there's no thrashing. This is the preferred memory type order.
  50  */
  51 static uint32_t via_mem_prios[] = {DRM_BO_MEM_PRIV0, DRM_BO_MEM_VRAM, DRM_BO_MEM_TT, DRM_BO_MEM_LOCAL};
  52
  53 /**
  54  * If we have thrashing, most memory will be evicted to TT anyway, so we might as well
  55  * just move the new buffer into TT from the start.
  56  */
  57 static uint32_t via_busy_prios[] = {DRM_BO_MEM_TT, DRM_BO_MEM_PRIV0, DRM_BO_MEM_VRAM, DRM_BO_MEM_LOCAL};
  58
  59
  60 static struct drm_bo_driver via_bo_driver = {
  61         .mem_type_prio = via_mem_prios,
  62         .mem_busy_prio = via_busy_prios,
  63         .num_mem_type_prio = DRM_ARRAY_SIZE(via_mem_prios),
  64         .num_mem_busy_prio = DRM_ARRAY_SIZE(via_busy_prios),
  65         .create_ttm_backend_entry = via_create_ttm_backend_entry,
  66         .fence_type = via_fence_types,
  67         .invalidate_caches = via_invalidate_caches,
  68         .init_mem_type = via_init_mem_type,
  69         .evict_flags = via_evict_flags,
  70         .move = NULL,
  71         .ttm_cache_flush = NULL,
  72         .command_stream_barrier = NULL
  73 };
  74 #endif
  75
  76 static int probe(struct pci_dev *pdev, const struct pci_device_id *ent);
  77 static struct drm_driver driver = {
  78         .driver_features =
  79             DRIVER_USE_AGP | DRIVER_USE_MTRR | DRIVER_HAVE_IRQ |
  80             DRIVER_IRQ_SHARED,
  81         .load = via_driver_load,
  82         .unload = via_driver_unload,
  83 #ifndef VIA_HAVE_CORE_MM
  84         .context_ctor = via_init_context,
  85 #endif
  86         .context_dtor = via_final_context,
  87         .get_vblank_counter = via_get_vblank_counter,
  88         .enable_vblank = via_enable_vblank,
  89         .disable_vblank = via_disable_vblank,
  90         .irq_preinstall = via_driver_irq_preinstall,
  91         .irq_postinstall = via_driver_irq_postinstall,
  92         .irq_uninstall = via_driver_irq_uninstall,
  93         .irq_handler = via_driver_irq_handler,
  94         .dma_quiescent = via_driver_dma_quiescent,
  95         .dri_library_name = dri_library_name,
  96         .reclaim_buffers = drm_core_reclaim_buffers,
  97         .reclaim_buffers_locked = NULL,
  98 #ifdef VIA_HAVE_CORE_MM
  99         .reclaim_buffers_idlelocked = via_reclaim_buffers_locked,
 100         .lastclose = via_lastclose,
 101 #endif
 102         .get_map_ofs = drm_core_get_map_ofs,
 103         .get_reg_ofs = drm_core_get_reg_ofs,
 104         .ioctls = via_ioctls,
 105         .fops = {
 106                 .owner = THIS_MODULE,
 107                 .open = drm_open,
 108                 .release = drm_release,
 109                 .ioctl = drm_ioctl,
 110                 .mmap = drm_mmap,
 111                 .poll = drm_poll,
 112                 .fasync = drm_fasync,
 113                 },
 114         .pci_driver = {
 115                 .name = DRIVER_NAME,
 116                 .id_table = pciidlist,
 117                 .probe = probe,
 118                 .remove = __devexit_p(drm_cleanup_pci),
 119         },
 120 #ifdef VIA_HAVE_FENCE
 121         .fence_driver = &via_fence_driver,
 122 #endif
 123 #ifdef VIA_HAVE_BUFFER
 124         .bo_driver = &via_bo_driver,
 125 #endif
 126         .name = DRIVER_NAME,
 127         .desc = DRIVER_DESC,
 128         .date = VIA_DRM_DRIVER_DATE,
 129         .major = VIA_DRM_DRIVER_MAJOR,
 130         .minor = VIA_DRM_DRIVER_MINOR,
 131         .patchlevel = VIA_DRM_DRIVER_PATCHLEVEL
 132 };
 133
 134 static int probe(struct pci_dev *pdev, const struct pci_device_id *ent)
 135 {
 136         return drm_get_dev(pdev, ent, &driver);
 137 }
 138
 139 static int __init via_init(void)
 140 {
 141         driver.num_ioctls = via_max_ioctl;
 142
 143         via_init_command_verifier();
 144         return drm_init(&driver, pciidlist);
 145 }
 146
 147 static void __exit via_exit(void)
 148 {
 149         drm_exit(&driver);
 150 }
 151
 152 module_init(via_init);
 153 module_exit(via_exit);
 154
 155 MODULE_AUTHOR(DRIVER_AUTHOR);
 156 MODULE_DESCRIPTION(DRIVER_DESC);
 157 MODULE_LICENSE("GPL and additional rights");