Date: Sat, 18 Jun 2016 15:21:09 GMT From: iateaca@FreeBSD.org To: svn-soc-all@FreeBSD.org Subject: socsvn commit: r305334 - soc2016/iateaca/bhyve-hda-head/usr.sbin/bhyve Message-ID: <201606181521.u5IFL9Px042961@socsvn.freebsd.org>
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Author: iateaca Date: Sat Jun 18 15:21:08 2016 New Revision: 305334 URL: http://svnweb.FreeBSD.org/socsvn/?view=rev&rev=305334 Log: start to implement the start_stream procedure: construct the BDL array M bhyve/pci_hda.c Modified: soc2016/iateaca/bhyve-hda-head/usr.sbin/bhyve/pci_hda.c Modified: soc2016/iateaca/bhyve-hda-head/usr.sbin/bhyve/pci_hda.c ============================================================================== --- soc2016/iateaca/bhyve-hda-head/usr.sbin/bhyve/pci_hda.c Sat Jun 18 13:44:10 2016 (r305333) +++ soc2016/iateaca/bhyve-hda-head/usr.sbin/bhyve/pci_hda.c Sat Jun 18 15:21:08 2016 (r305334) @@ -17,6 +17,7 @@ #define HDA_LAST_OFFSET (0x80 + ((HDA_ISS_NO) * 0x20) + ((HDA_OSS_NO) * 0x20)) #define HDA_CORB_ENTRY_LEN 0x04 #define HDA_RIRB_ENTRY_LEN 0x08 +#define HDA_BDL_ENTRY_LEN 0x10 #define HDA_STREAM_TAGS_CNT 0x10 #define HDA_STREAM_REGS_BASE 0x80 #define HDA_STREAM_REGS_LEN 0x20 @@ -99,6 +100,8 @@ hda_reset_regs(struct hda_softc *sc); static void hda_reset_stream(struct hda_softc *sc, uint8_t stream_ind); +static int +hda_start_stream(struct hda_softc *sc, uint8_t stream_ind); static uint32_t hda_read(struct hda_softc *sc, uint32_t offset); static int @@ -408,6 +411,68 @@ return; } +static int +hda_start_stream(struct hda_softc *sc, uint8_t stream_ind) +{ + struct hda_stream_desc *st = &sc->streams[stream_ind]; + struct hda_bdle_desc *bdle_desc = NULL; + struct hda_bdle *bdle = NULL; + uint32_t lvi = 0; + uint32_t bdl_cnt = 0; + uint64_t bdpl = 0; + uint64_t bdpu = 0; + uint64_t bdl_paddr = 0; + void *bdl_vaddr = NULL; + uint32_t bdle_sz = 0; + uint64_t bdle_addrl = 0; + uint64_t bdle_addrh = 0; + uint64_t bdle_paddr = 0; + void *bdle_vaddr = NULL; + uint32_t off = hda_get_offset_stream(stream_ind); + int i; + + assert(!st->run); + + lvi = hda_get_reg_by_offset(sc, off + HDAC_SDLVI); + bdpl = hda_get_reg_by_offset(sc, off + HDAC_SDBDPL); + bdpu = hda_get_reg_by_offset(sc, off + HDAC_SDBDPU); + + bdl_cnt = lvi + 1; + assert(bdl_cnt <= HDA_BDL_MAX_LEN); + + bdl_paddr = bdpl | (bdpu << 32); + bdl_vaddr = hda_dma_get_vaddr(sc, bdl_paddr, HDA_BDL_ENTRY_LEN * bdl_cnt); + if (!bdl_vaddr) { + DPRINTF("Fail to get the guest virtual address\n"); + return -1; + } + + DPRINTF("stream: 0x%x bdl_cnt: 0x%x bdl_paddr: 0x%lx\n", stream_ind, bdl_cnt, bdl_paddr); + + st->bdl_cnt = bdl_cnt; + + bdle = (struct hda_bdle *)bdl_vaddr; + for (i = 0; i < bdl_cnt; i++, bdle++) { + bdle_sz = bdle->len; + bdle_addrl = bdle->addrl; + bdle_addrh = bdle->addrh; + + bdle_paddr = bdle_addrl | (bdle_addrh << 32); + bdle_vaddr = hda_dma_get_vaddr(sc, bdle_paddr, bdle_sz); + if (!bdle_vaddr) { + DPRINTF("Fail to get the guest virtual address\n"); + return -1; + } + + bdle_desc = &st->bdl[i]; + bdle_desc->addr = bdle_vaddr; + bdle_desc->len = bdle_sz; + bdle_desc->ioc = bdle->ioc; + } + + return 0; +} + static uint32_t hda_read(struct hda_softc *sc, uint32_t offset) { @@ -648,6 +713,7 @@ { uint8_t stream_ind = hda_get_stream_by_offsets(offset, HDAC_SDCTL0); uint32_t value = hda_get_reg_by_offset(sc, offset); + int err; DPRINTF("stream_ind: 0x%x old: 0x%x\n", stream_ind, old); @@ -655,6 +721,11 @@ hda_reset_stream(sc, stream_ind); } + if (value & HDAC_SDCTL_RUN) { + err = hda_start_stream(sc, stream_ind); + assert(!err); + } + return; }
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