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Rev 878 Rev 879
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    MASKREG( RADEON_AIC_CNTL,0, RADEON_PCIGART_TRANSLATE_EN);
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    MASKREG( RADEON_AIC_CNTL,0, RADEON_PCIGART_TRANSLATE_EN);
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  //  load_microcode();
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  //  load_microcode();
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    rhd.ring_base = CreateRingBuffer(0x8000, PG_SW | PG_NOCACHE);
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 //   rhd.ring_base = CreateRingBuffer(0x8000, PG_SW | PG_NOCACHE);
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    dbgprintf("create cp ring buffer %x\n", rhd.ring_base);
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 //   dbgprintf("create cp ring buffer %x\n", rhd.ring_base);
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    base = GetPgAddr(rhd.ring_base);
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 //   base = GetPgAddr(rhd.ring_base);
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    OUTREG(RADEON_CP_RB_BASE, base);
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 //   OUTREG(RADEON_CP_RB_BASE, base);
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    dbgprintf("ring base %x\n", base);
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 //   dbgprintf("ring base %x\n", base);
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    OUTREG(RADEON_CP_RB_WPTR_DELAY, 0);
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 //   OUTREG(RADEON_CP_RB_WPTR_DELAY, 0);
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    rhd.ring_rp = rhd.ring_wp = INREG(RADEON_CP_RB_RPTR);
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 //   rhd.ring_rp = rhd.ring_wp = INREG(RADEON_CP_RB_RPTR);
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    OUTREG(RADEON_CP_RB_WPTR,rhd.ring_rp);
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 //   OUTREG(RADEON_CP_RB_WPTR,rhd.ring_rp);
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    OUTREG(RADEON_CP_RB_RPTR_ADDR, 0); // ring buffer read pointer no update
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 //   OUTREG(RADEON_CP_RB_RPTR_ADDR, 0); // ring buffer read pointer no update
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    OUTREG(RADEON_CP_RB_CNTL, RADEON_RB_NO_UPDATE | 12);
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 //   OUTREG(RADEON_CP_RB_CNTL, RADEON_RB_NO_UPDATE | 12);
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    OUTREG(RADEON_SCRATCH_UMSK, 0);          // no scratch update
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 //   OUTREG(RADEON_SCRATCH_UMSK, 0);          // no scratch update
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