workbench/hidds/radeon/radeon_accel.c

   1 /*
   2     Copyright © 2004, The AROS Development Team. All rights reserved.
   3     $Id$
   4 */
   5
   6 #include "ati.h"
   7 #include "radeon.h"
   8 #include "radeon_reg.h"
   9 #include "radeon_bios.h"
  10 #include "radeon_accel.h"
  11 #include "radeon_macros.h"
  12
  13
  14 #define DEBUG 1
  15 #include <aros/debug.h>
  16
  17 struct __ROP RADEON_ROP[] = {
  18     { RADEON_ROP3_ZERO, RADEON_ROP3_ZERO }, /* GXclear        */
  19     { RADEON_ROP3_DSa,  RADEON_ROP3_DPa  }, /* Gxand          */
  20     { RADEON_ROP3_SDna, RADEON_ROP3_PDna }, /* GXandReverse   */
  21     { RADEON_ROP3_S,    RADEON_ROP3_P    }, /* GXcopy         */
  22     { RADEON_ROP3_DSna, RADEON_ROP3_DPna }, /* GXandInverted  */
  23     { RADEON_ROP3_D,    RADEON_ROP3_D    }, /* GXnoop         */
  24     { RADEON_ROP3_DSx,  RADEON_ROP3_DPx  }, /* GXxor          */
  25     { RADEON_ROP3_DSo,  RADEON_ROP3_DPo  }, /* GXor           */
  26     { RADEON_ROP3_DSon, RADEON_ROP3_DPon }, /* GXnor          */
  27     { RADEON_ROP3_DSxn, RADEON_ROP3_PDxn }, /* GXequiv        */
  28     { RADEON_ROP3_Dn,   RADEON_ROP3_Dn   }, /* GXinvert       */
  29     { RADEON_ROP3_SDno, RADEON_ROP3_PDno }, /* GXorReverse    */
  30     { RADEON_ROP3_Sn,   RADEON_ROP3_Pn   }, /* GXcopyInverted */
  31     { RADEON_ROP3_DSno, RADEON_ROP3_DPno }, /* GXorInverted   */
  32     { RADEON_ROP3_DSan, RADEON_ROP3_DPan }, /* GXnand         */
  33     { RADEON_ROP3_ONE,  RADEON_ROP3_ONE  }  /* GXset          */
  34 };
  35
  36 /* The FIFO has 64 slots.  This routines waits until at least `entries'
  37  * of these slots are empty.
  38  */
  39 void RADEONWaitForFifoFunction(struct ati_staticdata *sd, int entries)
  40 {
  41     int i;
  42
  43     for (;;) {
  44         for (i = 0; i < RADEON_TIMEOUT; i++) {
  45             sd->Card.FIFOSlots =
  46                 INREG(RADEON_RBBM_STATUS) & RADEON_RBBM_FIFOCNT_MASK;
  47             if (sd->Card.FIFOSlots == 64) sd->Card.Busy = FALSE;
  48             if (sd->Card.FIFOSlots >= entries) return;
  49         }
  50         D(bug("[ATI] FIFO timed out: %d entries, stat=0x%08x\n",
  51                      INREG(RADEON_RBBM_STATUS) & RADEON_RBBM_FIFOCNT_MASK,
  52                      INREG(RADEON_RBBM_STATUS)));
  53         RADEONEngineReset(sd);
  54         RADEONEngineRestore(sd);
  55     }
  56 }
  57
  58 /* The FIFO has 64 slots.  This routines waits until at least `entries'
  59  * of these slots are empty.
  60  */
  61 void RADEONWaitForIdleMMIO(struct ati_staticdata *sd)
  62 {
  63     int i;
  64
  65     /* Wait for the engine to go idle */
  66     RADEONWaitForFifoFunction(sd, 64);
  67
  68     for (;;) {
  69         for (i = 0; i < RADEON_TIMEOUT; i++) {
  70             if (!(INREG(RADEON_RBBM_STATUS) & RADEON_RBBM_ACTIVE)) {
  71                 RADEONEngineFlush(sd);
  72                 sd->Card.Busy = FALSE;
  73                 return;
  74             }
  75         }
  76         D(bug("[ATI] Idle timed out: %d entries, stat=0x%08x\n",
  77                      INREG(RADEON_RBBM_STATUS) & RADEON_RBBM_FIFOCNT_MASK,
  78                      INREG(RADEON_RBBM_STATUS)));
  79         RADEONEngineReset(sd);
  80         RADEONEngineRestore(sd);
  81     }
  82 }
  83
  84 /* Flush all dirty data in the Pixel Cache to memory */
  85 void RADEONEngineFlush(struct ati_staticdata *sd)
  86 {
  87     int            i;
  88
  89     OUTREGP(RADEON_RB2D_DSTCACHE_CTLSTAT,
  90             RADEON_RB2D_DC_FLUSH_ALL,
  91             ~RADEON_RB2D_DC_FLUSH_ALL);
  92     for (i = 0; i < RADEON_TIMEOUT; i++) {
  93         if (!(INREG(RADEON_RB2D_DSTCACHE_CTLSTAT) & RADEON_RB2D_DC_BUSY))
  94             break;
  95     }
  96 }
  97
  98 /* Reset graphics card to known state */
  99 void RADEONEngineReset(struct ati_staticdata *sd)
 100 {
 101     ULONG   clock_cntl_index;
 102     ULONG   mclk_cntl;
 103     ULONG   rbbm_soft_reset;
 104     ULONG   host_path_cntl;
 105
 106     RADEONEngineFlush(sd);
 107
 108     clock_cntl_index = INREG(RADEON_CLOCK_CNTL_INDEX);
 109     if (sd->Card.R300CGWorkaround) R300CGWorkaround(sd);
 110
 111     mclk_cntl = RADEONINPLL(sd, RADEON_MCLK_CNTL);
 112
 113     host_path_cntl = INREG(RADEON_HOST_PATH_CNTL);
 114     rbbm_soft_reset = INREG(RADEON_RBBM_SOFT_RESET);
 115
 116     if (IS_R300_VARIANT) {
 117         ULONG tmp;
 118
 119         OUTREG(RADEON_RBBM_SOFT_RESET, (rbbm_soft_reset |
 120                                         RADEON_SOFT_RESET_CP |
 121                                         RADEON_SOFT_RESET_HI |
 122                                         RADEON_SOFT_RESET_E2));
 123         INREG(RADEON_RBBM_SOFT_RESET);
 124         OUTREG(RADEON_RBBM_SOFT_RESET, 0);
 125         tmp = INREG(RADEON_RB2D_DSTCACHE_MODE);
 126         OUTREG(RADEON_RB2D_DSTCACHE_MODE, tmp | (1 << 17)); /* FIXME */
 127     } else {
 128         OUTREG(RADEON_RBBM_SOFT_RESET, (rbbm_soft_reset |
 129                                         RADEON_SOFT_RESET_CP |
 130                                         RADEON_SOFT_RESET_SE |
 131                                         RADEON_SOFT_RESET_RE |
 132                                         RADEON_SOFT_RESET_PP |
 133                                         RADEON_SOFT_RESET_E2 |
 134                                         RADEON_SOFT_RESET_RB));
 135         INREG(RADEON_RBBM_SOFT_RESET);
 136         OUTREG(RADEON_RBBM_SOFT_RESET, (rbbm_soft_reset & (ULONG)
 137                                         ~(RADEON_SOFT_RESET_CP |
 138                                           RADEON_SOFT_RESET_SE |
 139                                           RADEON_SOFT_RESET_RE |
 140                                           RADEON_SOFT_RESET_PP |
 141                                           RADEON_SOFT_RESET_E2 |
 142                                           RADEON_SOFT_RESET_RB)));
 143         INREG(RADEON_RBBM_SOFT_RESET);
 144     }
 145
 146     OUTREG(RADEON_HOST_PATH_CNTL, host_path_cntl | RADEON_HDP_SOFT_RESET);
 147     INREG(RADEON_HOST_PATH_CNTL);
 148     OUTREG(RADEON_HOST_PATH_CNTL, host_path_cntl);
 149
 150     if (IS_R300_VARIANT)
 151         OUTREG(RADEON_RBBM_SOFT_RESET, rbbm_soft_reset);
 152
 153     OUTREG(RADEON_CLOCK_CNTL_INDEX, clock_cntl_index);
 154     OUTPLL(RADEON_MCLK_CNTL, mclk_cntl);
 155     if (sd->Card.R300CGWorkaround) R300CGWorkaround(sd);
 156
 157     OUTREG(RADEON_RB3D_CNTL, 0);
 158 }
 159
 160 /* Restore the acceleration hardware to its previous state */
 161 void RADEONEngineRestore(struct ati_staticdata *sd)
 162 {
 163     RADEONWaitForFifo(sd, 1);
 164
 165     /* NOTE: The following RB2D_DSTCACHE_MODE setting will cause the
 166      * R300 to hang.  ATI does not see a reason to change it from the
 167      * default BIOS settings (even on non-R300 cards).  This setting
 168      * might be removed in future versions of the Radeon driver.
 169      */
 170
 171     /* Turn of all automatic flushing - we'll do it all */
 172     if (!IS_R300_VARIANT)
 173         OUTREG(RADEON_RB2D_DSTCACHE_MODE, 0);
 174
 175     RADEONWaitForFifo(sd, 1);
 176 #if AROS_BIG_ENDIAN
 177     OUTREGP(RADEON_DP_DATATYPE,
 178             RADEON_HOST_BIG_ENDIAN_EN,
 179             ~RADEON_HOST_BIG_ENDIAN_EN);
 180 #else
 181     OUTREGP(RADEON_DP_DATATYPE, 0, ~RADEON_HOST_BIG_ENDIAN_EN);
 182 #endif
 183
 184     RADEONWaitForFifo(sd, 1);
 185     OUTREG(RADEON_DEFAULT_SC_BOTTOM_RIGHT, (RADEON_DEFAULT_SC_RIGHT_MAX
 186                                             | RADEON_DEFAULT_SC_BOTTOM_MAX));
 187
 188     RADEONWaitForFifo(sd, 7);
 189     OUTREG(RADEON_DST_LINE_START,    0);
 190     OUTREG(RADEON_DST_LINE_END,      0);
 191     OUTREG(RADEON_DP_BRUSH_FRGD_CLR, 0xffffffff);
 192     OUTREG(RADEON_DP_BRUSH_BKGD_CLR, 0x00000000);
 193     OUTREG(RADEON_DP_SRC_FRGD_CLR,   0xffffffff);
 194     OUTREG(RADEON_DP_SRC_BKGD_CLR,   0x00000000);
 195     OUTREG(RADEON_DP_WRITE_MASK,     0xffffffff);
 196
 197     RADEONWaitForIdleMMIO(sd);
 198 }
 199