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- Clean up global data.
- Force dcons to be the high-level console after dcons_crom has been attached. - Add a tunable to be the high-level console.
This commit is contained in:
Hidetoshi Shimokawa
parent
5850fa3e42
commit
19b3bba3e5
Notes:
svn2git
2020-12-20 02:59:44 +00:00
svn path=/head/; revision=125862
@ -117,18 +117,19 @@ static struct cdevsw dcons_cdevsw = {
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#ifndef KLD_MODULE
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static char bssbuf[DCONS_BUF_SIZE]; /* buf in bss */
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#endif
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struct dcons_buf *dcons_buf;
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size_t dcons_bufsize;
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bus_dma_tag_t dcons_dma_tag = NULL;
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bus_dmamap_t dcons_dma_map = NULL;
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/* global data */
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static struct dcons_global dg;
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struct dcons_global *dcons_conf;
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static int poll_hz = DCONS_POLL_HZ;
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SYSCTL_NODE(_kern, OID_AUTO, dcons, CTLFLAG_RD, 0, "Dumb Console");
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SYSCTL_INT(_kern_dcons, OID_AUTO, poll_hz, CTLFLAG_RW, &poll_hz, 0,
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"dcons polling rate");
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static int drv_init = 0;
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static struct callout dcons_callout;
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struct dcons_buf *dcons_buf; /* for local dconschat */
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/* per device data */
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static struct dcons_softc {
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@ -373,9 +374,8 @@ dcons_checkc(struct dcons_softc *dc)
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ch = &dc->i;
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if (dcons_dma_tag != NULL)
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bus_dmamap_sync(dcons_dma_tag, dcons_dma_map,
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BUS_DMASYNC_POSTREAD);
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if (dg.dma_tag != NULL)
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bus_dmamap_sync(dg.dma_tag, dg.dma_map, BUS_DMASYNC_POSTREAD);
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ptr = ntohl(*ch->ptr);
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gen = ptr >> DCONS_GEN_SHIFT;
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pos = ptr & DCONS_POS_MASK;
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@ -438,9 +438,8 @@ dcons_putc(struct dcons_softc *dc, int c)
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ch->pos = 0;
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}
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*ch->ptr = DCONS_MAKE_PTR(ch);
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if (dcons_dma_tag != NULL)
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bus_dmamap_sync(dcons_dma_tag, dcons_dma_map,
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BUS_DMASYNC_PREWRITE);
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if (dg.dma_tag != NULL)
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bus_dmamap_sync(dg.dma_tag, dg.dma_map, BUS_DMASYNC_PREWRITE);
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}
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static int
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@ -455,19 +454,19 @@ dcons_init_port(int port, int offset, int size)
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dc->o.size = osize;
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dc->i.size = size - osize;
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dc->o.buf = (char *)dcons_buf + offset;
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dc->o.buf = (char *)dg.buf + offset;
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dc->i.buf = dc->o.buf + osize;
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dc->o.gen = dc->i.gen = 0;
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dc->o.pos = dc->i.pos = 0;
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dc->o.ptr = &dcons_buf->optr[port];
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dc->i.ptr = &dcons_buf->iptr[port];
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dc->o.ptr = &dg.buf->optr[port];
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dc->i.ptr = &dg.buf->iptr[port];
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dc->brk_state = STATE0;
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dcons_buf->osize[port] = htonl(osize);
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dcons_buf->isize[port] = htonl(size - osize);
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dcons_buf->ooffset[port] = htonl(offset);
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dcons_buf->ioffset[port] = htonl(offset + osize);
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dcons_buf->optr[port] = DCONS_MAKE_PTR(&dc->o);
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dcons_buf->iptr[port] = DCONS_MAKE_PTR(&dc->i);
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dg.buf->osize[port] = htonl(osize);
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dg.buf->isize[port] = htonl(size - osize);
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dg.buf->ooffset[port] = htonl(offset);
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dg.buf->ioffset[port] = htonl(offset + osize);
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dg.buf->optr[port] = DCONS_MAKE_PTR(&dc->o);
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dg.buf->iptr[port] = DCONS_MAKE_PTR(&dc->i);
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return(0);
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}
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@ -482,7 +481,10 @@ dcons_drv_init(int stage)
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drv_init = -1;
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dcons_bufsize = DCONS_BUF_SIZE;
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bzero(&dg, sizeof(dg));
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dcons_conf = &dg;
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dg.cdev = &dcons_consdev;
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dg.size = DCONS_BUF_SIZE;
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#ifndef KLD_MODULE
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if (stage == 0) /* XXX or cold */
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@ -490,26 +492,27 @@ dcons_drv_init(int stage)
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* DCONS_FORCE_CONSOLE == 1 and statically linked.
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* called from cninit(). can't use contigmalloc yet .
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*/
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dcons_buf = (struct dcons_buf *) bssbuf;
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dg.buf = (struct dcons_buf *) bssbuf;
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else
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#endif
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/*
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* DCONS_FORCE_CONSOLE == 0 or kernel module case.
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* if the module is loaded after boot,
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* dcons_buf could be non-continuous.
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* bssbuf could be non-continuous.
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*/
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dcons_buf = (struct dcons_buf *) contigmalloc(dcons_bufsize,
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dg.buf = (struct dcons_buf *) contigmalloc(dg.size,
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M_DEVBUF, 0, 0x10000, 0xffffffff, PAGE_SIZE, 0ul);
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dcons_buf = dg.buf;
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offset = DCONS_HEADER_SIZE;
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size = (dcons_bufsize - offset);
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size = (dg.size - offset);
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size0 = size * 3 / 4;
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dcons_init_port(0, offset, size0);
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offset += size0;
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dcons_init_port(1, offset, size - size0);
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dcons_buf->version = htonl(DCONS_VERSION);
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dcons_buf->magic = ntohl(DCONS_MAGIC);
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dg.buf->version = htonl(DCONS_VERSION);
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dg.buf->magic = ntohl(DCONS_MAGIC);
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#if DDB && DCONS_FORCE_GDB
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#if CONS_NODEV
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@ -633,9 +636,9 @@ dcons_modevent(module_t mode, int type, void *data)
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#endif
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dcons_detach(DCONS_CON);
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dcons_detach(DCONS_GDB);
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dcons_buf->magic = 0;
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dg.buf->magic = 0;
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contigfree(dcons_buf, DCONS_BUF_SIZE, M_DEVBUF);
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contigfree(dg.buf, DCONS_BUF_SIZE, M_DEVBUF);
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break;
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case MOD_SHUTDOWN:
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@ -90,8 +90,12 @@ struct dcons_ch {
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#define STATE2 2
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#ifdef _KERNEL
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extern struct dcons_buf *dcons_buf;
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extern size_t dcons_bufsize;
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extern bus_dma_tag_t dcons_dma_tag;
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extern bus_dmamap_t dcons_dma_map;
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struct dcons_global {
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struct consdev *cdev;
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struct dcons_buf *buf;
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size_t size;
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bus_dma_tag_t dma_tag;
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bus_dmamap_t dma_map;
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};
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extern struct dcons_global *dcons_conf;
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#endif
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@ -50,8 +50,15 @@
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#include <dev/firewire/iec13213.h>
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#include <dev/dcons/dcons.h>
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#include <sys/cons.h>
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static bus_addr_t dcons_paddr;
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#if __FreeBSD_version >= 500000
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static int force_console = 1;
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TUNABLE_INT("hw.firewire.dcons_crom.force_console", &force_console);
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#endif
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#ifndef CSRVAL_VENDOR_PRIVATE
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#define NEED_NEW_DRIVER
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#endif
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@ -136,9 +143,15 @@ dmamap_cb(void *arg, bus_dma_segment_t *segments, int seg, int error)
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device_printf(sc->fd.dev, "dcons_paddr is already set\n");
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return;
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}
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dcons_dma_tag = sc->dma_tag;
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dcons_dma_map = sc->dma_map;
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dcons_conf->dma_tag = sc->dma_tag;
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dcons_conf->dma_map = sc->dma_map;
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dcons_paddr = sc->bus_addr;
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#if __FreeBSD_version >= 500000
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/* Force to be the high-level console */
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if (force_console)
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cnselect(dcons_conf->cdev);
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#endif
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}
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static int
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@ -164,7 +177,7 @@ dcons_crom_attach(device_t dev)
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/*lowaddr*/ BUS_SPACE_MAXADDR,
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/*highaddr*/ BUS_SPACE_MAXADDR,
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/*filter*/NULL, /*filterarg*/NULL,
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/*maxsize*/ dcons_bufsize,
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/*maxsize*/ dcons_conf->size,
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/*nsegments*/ 1,
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/*maxsegsz*/ BUS_SPACE_MAXSIZE_32BIT,
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/*flags*/ BUS_DMA_ALLOCNOW,
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@ -175,7 +188,7 @@ dcons_crom_attach(device_t dev)
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&sc->dma_tag);
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bus_dmamap_create(sc->dma_tag, 0, &sc->dma_map);
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bus_dmamap_load(sc->dma_tag, sc->dma_map,
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(void *)dcons_buf, dcons_bufsize,
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(void *)dcons_conf->buf, dcons_conf->size,
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dmamap_cb, sc, 0);
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return (0);
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#endif
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@ -190,8 +203,8 @@ dcons_crom_detach(device_t dev)
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sc->fd.post_busreset = NULL;
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/* XXX */
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if (dcons_dma_tag == sc->dma_tag)
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dcons_dma_tag = NULL;
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if (dcons_conf->dma_tag == sc->dma_tag)
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dcons_conf->dma_tag = NULL;
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bus_dmamap_unload(sc->dma_tag, sc->dma_map);
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bus_dmamap_destroy(sc->dma_tag, sc->dma_map);
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