linux-core/xgi_cmdlist.h

   1
   2 /****************************************************************************
   3  * Copyright (C) 2003-2006 by XGI Technology, Taiwan.
   4  *                                                                                                                                                      *
   5  * All Rights Reserved.                                                                                                         *
   6  *                                                                                                                                                      *
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   8  * a copy of this software and associated documentation files (the
   9  * "Software"), to deal in the Software without restriction, including
  10  * without limitation on the rights to use, copy, modify, merge,
  11  * publish, distribute, sublicense, and/or sell copies of the Software,
  12  * and to permit persons to whom the Software is furnished to do so,
  13  * subject to the following conditions:
  14  *                                                                                                                                                      *
  15  * The above copyright notice and this permission notice (including the
  16  * next paragraph) shall be included in all copies or substantial
  17  * portions of the Software.
  18  *                                                                                                                                                      *
  19  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
  20  * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  21  * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
  22  * NON-INFRINGEMENT.  IN NO EVENT SHALL XGI AND/OR
  23  * ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
  24  * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
  25  * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
  26  * DEALINGS IN THE SOFTWARE.
  27  ***************************************************************************/
  28
  29 #ifndef _XGI_CMDLIST_H_
  30 #define _XGI_CMDLIST_H_
  31
  32 #define         ONE_BIT_MASK                                                    0x1
  33 #define         TWENTY_BIT_MASK                                                 0xfffff
  34 #define         M2REG_FLUSH_2D_ENGINE_MASK                              (ONE_BIT_MASK<<20)
  35 #define         M2REG_FLUSH_3D_ENGINE_MASK                              TWENTY_BIT_MASK
  36 #define         M2REG_FLUSH_FLIP_ENGINE_MASK                    (ONE_BIT_MASK<<21)
  37 #define     BASE_3D_ENG                             0x2800
  38 #define     M2REG_AUTO_LINK_SETTING_ADDRESS         0x10
  39 #define         M2REG_CLEAR_COUNTERS_MASK                               (ONE_BIT_MASK<<4)
  40 #define         M2REG_PCI_TRIGGER_MODE_MASK                             (ONE_BIT_MASK<<1)
  41 #define         BEGIN_VALID_MASK                        (ONE_BIT_MASK<<20)
  42 #define         BEGIN_LINK_ENABLE_MASK                  (ONE_BIT_MASK<<31)
  43 #define         BEGIN_BEGIN_IDENTIFICATION_MASK         (TWENTY_BIT_MASK<<0)
  44 #define     M2REG_PCI_TRIGGER_REGISTER_ADDRESS      0x14
  45
  46 typedef enum {
  47         FLUSH_2D = M2REG_FLUSH_2D_ENGINE_MASK,
  48         FLUSH_3D = M2REG_FLUSH_3D_ENGINE_MASK,
  49         FLUSH_FLIP = M2REG_FLUSH_FLIP_ENGINE_MASK
  50 } FLUSH_CODE;
  51
  52 typedef enum {
  53         AGPCMDLIST_SCRATCH_SIZE = 0x100,
  54         AGPCMDLIST_BEGIN_SIZE = 0x004,
  55         AGPCMDLIST_3D_SCRATCH_CMD_SIZE = 0x004,
  56         AGPCMDLIST_2D_SCRATCH_CMD_SIZE = 0x00c,
  57         AGPCMDLIST_FLUSH_CMD_LEN = 0x004,
  58         AGPCMDLIST_DUMY_END_BATCH_LEN = AGPCMDLIST_BEGIN_SIZE
  59 } CMD_SIZE;
  60
  61 struct xgi_cmdring_info {
  62         /**
  63          * Kernel space pointer to the base of the command ring.
  64          */
  65         u32 * ptr;
  66
  67         /**
  68          * Size, in bytes, of the command ring.
  69          */
  70         unsigned int size;
  71
  72         /**
  73          * Base address of the command ring from the hardware's PoV.
  74          */
  75         unsigned int ring_hw_base;
  76
  77         /**
  78          * Offset, in bytes, from the base of PCI-e GART space to the start
  79          * of the ring.
  80          */
  81         unsigned long ring_gart_base;
  82
  83         u32 * last_ptr;
  84
  85         /**
  86          * Offset, in bytes, from the start of the ring to the next available
  87          * location to store a command.
  88          */
  89         unsigned int ring_offset;
  90 };
  91
  92 struct xgi_info;
  93 extern int xgi_cmdlist_initialize(struct xgi_info * info, size_t size);
  94
  95 extern int xgi_state_change(struct xgi_info * info, unsigned int to,
  96         unsigned int from);
  97
  98 extern void xgi_cmdlist_cleanup(struct xgi_info * info);
  99
 100 #endif                          /* _XGI_CMDLIST_H_ */