?? dbdma.patch
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diff -Naur linux26-cvs/arch/mips/au1000/common/dbdma.c linux26-amd/arch/mips/au1000/common/dbdma.c--- linux26-cvs/arch/mips/au1000/common/dbdma.c Tue May 31 10:22:40 2005+++ linux26-amd/arch/mips/au1000/common/dbdma.c Wed Jul 27 16:09:58 2005@@ -141,12 +140,12 @@ { DSCR_CMD0_AES_RX, DEV_FLAGS_IN , 4, 32, 0x10300008, 0, 0 }, { DSCR_CMD0_AES_TX, DEV_FLAGS_OUT, 4, 32, 0x10300004, 0, 0 }, - { DSCR_CMD0_PSC0_TX, DEV_FLAGS_OUT, 0, 0, 0x11a0001c, 0, 0 },- { DSCR_CMD0_PSC0_RX, DEV_FLAGS_IN, 0, 0, 0x11a0001c, 0, 0 },+ { DSCR_CMD0_PSC0_TX, DEV_FLAGS_OUT, 0, 16, 0x11a0001c, 0, 0 },+ { DSCR_CMD0_PSC0_RX, DEV_FLAGS_IN, 0, 16, 0x11a0001c, 0, 0 }, { DSCR_CMD0_PSC0_SYNC, DEV_FLAGS_ANYUSE, 0, 0, 0x00000000, 0, 0 }, - { DSCR_CMD0_PSC1_TX, DEV_FLAGS_OUT, 0, 0, 0x11b0001c, 0, 0 },- { DSCR_CMD0_PSC1_RX, DEV_FLAGS_IN, 0, 0, 0x11b0001c, 0, 0 },+ { DSCR_CMD0_PSC1_TX, DEV_FLAGS_OUT, 0, 16, 0x11b0001c, 0, 0 },+ { DSCR_CMD0_PSC1_RX, DEV_FLAGS_IN, 0, 16, 0x11b0001c, 0, 0 }, { DSCR_CMD0_PSC1_SYNC, DEV_FLAGS_ANYUSE, 0, 0, 0x00000000, 0, 0 }, { DSCR_CMD0_CIM_RXA, DEV_FLAGS_IN, 0, 32, 0x14004020, 0, 0 },@@ -424,7 +422,13 @@ cmd0 |= DSCR_CMD0_SID(srcid); cmd0 |= DSCR_CMD0_DID(destid); cmd0 |= DSCR_CMD0_IE | DSCR_CMD0_CV;- cmd0 |= DSCR_CMD0_ST(DSCR_CMD0_ST_CURRENT);+ cmd0 |= DSCR_CMD0_ST(DSCR_CMD0_ST_NOCHANGE);+ + /* is it mem to mem transfer? */+ if(((DSCR_CUSTOM2DEV_ID(srcid) == DSCR_CMD0_THROTTLE) || (DSCR_CUSTOM2DEV_ID(srcid) == DSCR_CMD0_ALWAYS)) &&+ ((DSCR_CUSTOM2DEV_ID(destid) == DSCR_CMD0_THROTTLE) || (DSCR_CUSTOM2DEV_ID(destid) == DSCR_CMD0_ALWAYS))) {+ cmd0 |= DSCR_CMD0_MEM;+ } switch (stp->dev_devwidth) { case 8:@@ -533,7 +537,8 @@ dp->dscr_dest0 = dest0; dp->dscr_dest1 = dest1; dp->dscr_stat = 0;- dp->sw_context = dp->sw_status = 0;+ dp->sw_context = 0;+ dp->sw_status = 0; dp->dscr_nxtptr = DSCR_NXTPTR(virt_to_phys(dp + 1)); dp++; }@@ -585,9 +590,6 @@ dp->dscr_cmd0 |= DSCR_CMD0_IE; if (flags & DDMA_FLAGS_NOIE) dp->dscr_cmd0 &= ~DSCR_CMD0_IE;- /* Get next descriptor pointer.- */- ctp->put_ptr = phys_to_virt(DSCR_GET_NXTPTR(dp->dscr_nxtptr)); /* * There is an errata on the Au1200/Au1550 parts that could result @@ -601,6 +603,10 @@ au_sync(); dma_cache_wback_inv((unsigned long)dp, sizeof(dp)); ctp->chan_ptr->ddma_dbell = 0;++ /* Get next descriptor pointer.+ */+ ctp->put_ptr = phys_to_virt(DSCR_GET_NXTPTR(dp->dscr_nxtptr)); /* return something not zero. */
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