LXR linux/drivers/gpu/drm/via/via

   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#ifndef _VIA_DRV_H_
  25#define _VIA_DRV_H_
  26
  27#include "drm_mm.h"
  28#define DRIVER_AUTHOR   "Various"
  29
  30#define DRIVER_NAME             "via"
  31#define DRIVER_DESC             "VIA Unichrome / Pro"
  32#define DRIVER_DATE             "20070202"
  33
  34#define DRIVER_MAJOR            2
  35#define DRIVER_MINOR            11
  36#define DRIVER_PATCHLEVEL       1
  37
  38#include "via_verifier.h"
  39
  40#include "via_dmablit.h"
  41
  42#define VIA_PCI_BUF_SIZE 60000
  43#define VIA_FIRE_BUF_SIZE  1024
  44#define VIA_NUM_IRQS 4
  45
  46typedef struct drm_via_ring_buffer {
  47        drm_local_map_t map;
  48        char *virtual_start;
  49} drm_via_ring_buffer_t;
  50
  51typedef uint32_t maskarray_t[5];
  52
  53typedef struct drm_via_irq {
  54        atomic_t irq_received;
  55        uint32_t pending_mask;
  56        uint32_t enable_mask;
  57        wait_queue_head_t irq_queue;
  58} drm_via_irq_t;
  59
  60typedef struct drm_via_private {
  61        drm_via_sarea_t *sarea_priv;
  62        drm_local_map_t *sarea;
  63        drm_local_map_t *fb;
  64        drm_local_map_t *mmio;
  65        unsigned long agpAddr;
  66        wait_queue_head_t decoder_queue[VIA_NR_XVMC_LOCKS];
  67        char *dma_ptr;
  68        unsigned int dma_low;
  69        unsigned int dma_high;
  70        unsigned int dma_offset;
  71        uint32_t dma_wrap;
  72        volatile uint32_t *last_pause_ptr;
  73        volatile uint32_t *hw_addr_ptr;
  74        drm_via_ring_buffer_t ring;
  75        struct timeval last_vblank;
  76        int last_vblank_valid;
  77        unsigned usec_per_vblank;
  78        atomic_t vbl_received;
  79        drm_via_state_t hc_state;
  80        char pci_buf[VIA_PCI_BUF_SIZE];
  81        const uint32_t *fire_offsets[VIA_FIRE_BUF_SIZE];
  82        uint32_t num_fire_offsets;
  83        int chipset;
  84        drm_via_irq_t via_irqs[VIA_NUM_IRQS];
  85        unsigned num_irqs;
  86        maskarray_t *irq_masks;
  87        uint32_t irq_enable_mask;
  88        uint32_t irq_pending_mask;
  89        int *irq_map;
  90        unsigned int idle_fault;
  91        int vram_initialized;
  92        struct drm_mm vram_mm;
  93        int agp_initialized;
  94        struct drm_mm agp_mm;
  95        /** Mapping of userspace keys to mm objects */
  96        struct idr object_idr;
  97        unsigned long vram_offset;
  98        unsigned long agp_offset;
  99        drm_via_blitq_t blit_queues[VIA_NUM_BLIT_ENGINES];
 100        uint32_t dma_diff;
 101} drm_via_private_t;
 102
 103enum via_family {
 104  VIA_OTHER = 0,     /* Baseline */
 105  VIA_PRO_GROUP_A,   /* Another video engine and DMA commands */
 106  VIA_DX9_0          /* Same video as pro_group_a, but 3D is unsupported */
 107};
 108
 109/* VIA MMIO register access */
 110#define VIA_BASE ((dev_priv->mmio))
 111
 112#define VIA_READ(reg)           DRM_READ32(VIA_BASE, reg)
 113#define VIA_WRITE(reg, val)     DRM_WRITE32(VIA_BASE, reg, val)
 114#define VIA_READ8(reg)          DRM_READ8(VIA_BASE, reg)
 115#define VIA_WRITE8(reg, val)    DRM_WRITE8(VIA_BASE, reg, val)
 116
 117extern struct drm_ioctl_desc via_ioctls[];
 118extern int via_max_ioctl;
 119
 120extern int via_fb_init(struct drm_device *dev, void *data, struct drm_file *file_priv);
 121extern int via_mem_alloc(struct drm_device *dev, void *data, struct drm_file *file_priv);
 122extern int via_mem_free(struct drm_device *dev, void *data, struct drm_file *file_priv);
 123extern int via_agp_init(struct drm_device *dev, void *data, struct drm_file *file_priv);
 124extern int via_map_init(struct drm_device *dev, void *data, struct drm_file *file_priv);
 125extern int via_decoder_futex(struct drm_device *dev, void *data, struct drm_file *file_priv);
 126extern int via_wait_irq(struct drm_device *dev, void *data, struct drm_file *file_priv);
 127extern int via_dma_blit_sync(struct drm_device *dev, void *data, struct drm_file *file_priv);
 128extern int via_dma_blit(struct drm_device *dev, void *data, struct drm_file *file_priv);
 129
 130extern int via_driver_load(struct drm_device *dev, unsigned long chipset);
 131extern int via_driver_unload(struct drm_device *dev);
 132
 133extern int via_init_context(struct drm_device *dev, int context);
 134extern int via_final_context(struct drm_device *dev, int context);
 135
 136extern int via_do_cleanup_map(struct drm_device *dev);
 137extern u32 via_get_vblank_counter(struct drm_device *dev, int crtc);
 138extern int via_enable_vblank(struct drm_device *dev, int crtc);
 139extern void via_disable_vblank(struct drm_device *dev, int crtc);
 140
 141extern irqreturn_t via_driver_irq_handler(DRM_IRQ_ARGS);
 142extern void via_driver_irq_preinstall(struct drm_device *dev);
 143extern int via_driver_irq_postinstall(struct drm_device *dev);
 144extern void via_driver_irq_uninstall(struct drm_device *dev);
 145
 146extern int via_dma_cleanup(struct drm_device *dev);
 147extern void via_init_command_verifier(void);
 148extern int via_driver_dma_quiescent(struct drm_device *dev);
 149extern void via_init_futex(drm_via_private_t *dev_priv);
 150extern void via_cleanup_futex(drm_via_private_t *dev_priv);
 151extern void via_release_futex(drm_via_private_t *dev_priv, int context);
 152
 153extern void via_reclaim_buffers_locked(struct drm_device *dev,
 154                                       struct drm_file *file_priv);
 155extern void via_lastclose(struct drm_device *dev);
 156
 157extern void via_dmablit_handler(struct drm_device *dev, int engine, int from_irq);
 158extern void via_init_dmablit(struct drm_device *dev);
 159
 160#endif
 161