github.com/rdolbeau.SBusFPGA
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disable tracing

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This commit is contained in:
Romain Dolbeau 2020-12-18 09:25:17 -05:00
parent 92c7751290
commit 9a5892be71
1 changed files with 27 additions and 20 deletions
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47
NetBSD/9.0/usr/src/sys/dev/sbus/rdfpga.c
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@ -162,10 +162,9 @@ int
rdfpga_write(dev_t dev, struct uio *uio, int flags) rdfpga_write(dev_t dev, struct uio *uio, int flags)
{ {
struct rdfpga_softc *sc = device_lookup_private(&rdfpga_cd, minor(dev)); struct rdfpga_softc *sc = device_lookup_private(&rdfpga_cd, minor(dev));
int error = 0, ctr = 0, res; int error = 0, ctr = 0, res, oldres;
aprint_normal_dev(sc->sc_dev, "dma uio: %zu in %d\n", uio->uio_resid, uio->uio_iovcnt); aprint_normal_dev(sc->sc_dev, "dma uio: %zu in %d\n", uio->uio_resid, uio->uio_iovcnt);
delay(100);
while (!error && uio->uio_resid >= 16 && uio->uio_iovcnt == 1) { while (!error && uio->uio_resid >= 16 && uio->uio_iovcnt == 1) {
uint64_t ctrl; uint64_t ctrl;
@ -193,54 +192,60 @@ delay(100);
/* aprint_normal_dev(sc->sc_dev, "dma: %lu %lu %d\n", sc->sc_dmamap->dm_maxsegsz, sc->sc_dmamap->dm_mapsize, sc->sc_dmamap->dm_nsegs); */ /* aprint_normal_dev(sc->sc_dev, "dma: %lu %lu %d\n", sc->sc_dmamap->dm_maxsegsz, sc->sc_dmamap->dm_mapsize, sc->sc_dmamap->dm_nsegs); */
/* } */ /* } */
aprint_normal_dev(sc->sc_dev, "dmamem about to alloc for %d blocks...\n", nblock); /* aprint_normal_dev(sc->sc_dev, "dmamem about to alloc for %d blocks...\n", nblock); */
bus_dma_segment_t segs; bus_dma_segment_t segs;
int rsegs; int rsegs;
if (bus_dmamem_alloc(sc->sc_dmatag, nblock*16, 64, 64, &segs, 1, &rsegs, BUS_DMA_NOWAIT | BUS_DMA_STREAMING)) { if (bus_dmamem_alloc(sc->sc_dmatag, nblock*16, 64, 64, &segs, 1, &rsegs, BUS_DMA_NOWAIT | BUS_DMA_STREAMING)) {
aprint_error_dev(sc->sc_dev, "cannot allocate DVMA memory"); aprint_error_dev(sc->sc_dev, "cannot allocate DVMA memory");
return ENXIO; return ENXIO;
} else {
aprint_normal_dev(sc->sc_dev, "dmamem alloc: %d\n", rsegs);
} }
/* else { */
/* aprint_normal_dev(sc->sc_dev, "dmamem alloc: %d\n", rsegs); */
/* } */
void* kvap; void* kvap;
if (bus_dmamem_map(sc->sc_dmatag, &segs, 1, nblock*16, &kvap, BUS_DMA_NOWAIT)) { if (bus_dmamem_map(sc->sc_dmatag, &segs, 1, nblock*16, &kvap, BUS_DMA_NOWAIT)) {
aprint_error_dev(sc->sc_dev, "cannot allocate DVMA address"); aprint_error_dev(sc->sc_dev, "cannot allocate DVMA address");
return ENXIO; return ENXIO;
} else {
aprint_normal_dev(sc->sc_dev, "dmamem map: %p\n", kvap);
} }
/* else { */
/* aprint_normal_dev(sc->sc_dev, "dmamem map: %p\n", kvap); */
/* } */
if ((error = uiomove(kvap, nblock*16, uio)) != 0) if ((error = uiomove(kvap, nblock*16, uio)) != 0)
break; break;
aprint_normal_dev(sc->sc_dev, "uimove: left %zu in %d\n", uio->uio_resid, uio->uio_iovcnt); /* aprint_normal_dev(sc->sc_dev, "uimove: left %zu in %d\n", uio->uio_resid, uio->uio_iovcnt); */
if (bus_dmamap_load(sc->sc_dmatag, sc->sc_dmamap, kvap, nblock*16, /* kernel space */ NULL, if (bus_dmamap_load(sc->sc_dmatag, sc->sc_dmamap, kvap, nblock*16, /* kernel space */ NULL,
BUS_DMA_NOWAIT | BUS_DMA_STREAMING | BUS_DMA_WRITE)) { BUS_DMA_NOWAIT | BUS_DMA_STREAMING | BUS_DMA_WRITE)) {
aprint_error_dev(sc->sc_dev, "cannot load dma map"); aprint_error_dev(sc->sc_dev, "cannot load dma map");
return ENXIO; return ENXIO;
} else {
aprint_normal_dev(sc->sc_dev, "dmamap: %lu %lu %d\n", sc->sc_dmamap->dm_maxsegsz, sc->sc_dmamap->dm_mapsize, sc->sc_dmamap->dm_nsegs);
} }
/* else { */
/* aprint_normal_dev(sc->sc_dev, "dmamap: %lu %lu %d\n", sc->sc_dmamap->dm_maxsegsz, sc->sc_dmamap->dm_mapsize, sc->sc_dmamap->dm_nsegs); */
/* } */
bus_dmamap_sync(sc->sc_dmatag, sc->sc_dmamap, 0, nblock*16, BUS_DMASYNC_PREWRITE); bus_dmamap_sync(sc->sc_dmatag, sc->sc_dmamap, 0, nblock*16, BUS_DMASYNC_PREWRITE);
aprint_normal_dev(sc->sc_dev, "dma: synced\n"); /* aprint_normal_dev(sc->sc_dev, "dma: synced\n"); */
ctrl = ((uint64_t)(0x80000000 | ((nblock-1) & 0x0FF))) | ((uint64_t)(uint32_t)(sc->sc_dmamap->dm_segs[0].ds_addr)) << 32; ctrl = ((uint64_t)(0x80000000 | ((nblock-1) & 0x0FF))) | ((uint64_t)(uint32_t)(sc->sc_dmamap->dm_segs[0].ds_addr)) << 32;
aprint_normal_dev(sc->sc_dev, "trying 0x%016llx\n", ctrl); /* aprint_normal_dev(sc->sc_dev, "trying 0x%016llx\n", ctrl); */
bus_space_write_8(sc->sc_bustag, sc->sc_bhregs, (RDFPGA_REG_DMA_ADDR), ctrl); bus_space_write_8(sc->sc_bustag, sc->sc_bhregs, (RDFPGA_REG_DMA_ADDR), ctrl);
aprint_normal_dev(sc->sc_dev, "dma: cmd sent\n"); /* aprint_normal_dev(sc->sc_dev, "dma: cmd sent\n"); */
res = bus_space_read_4(sc->sc_bustag, sc->sc_bhregs, (RDFPGA_REG_DMA_CTRL));
do { do {
ctr ++; ctr ++;
delay(1); delay(2);
} while (((res = bus_space_read_4(sc->sc_bustag, sc->sc_bhregs, (RDFPGA_REG_DMA_CTRL))) & 0x80000000) && (ctr < 10)); oldres = res;
res = bus_space_read_4(sc->sc_bustag, sc->sc_bhregs, (RDFPGA_REG_DMA_CTRL));
} while ((res & 0x80000000) && !(res & 0x20000000) && (res != oldres) && (ctr < 10000));
if ((res & 0x80000000) || (res & 0x20000000)) { if ((res & 0x80000000) || (res & 0x20000000)) {
aprint_error_dev(sc->sc_dev, "read 0x%08x (%d try)\n", res, ctr); aprint_error_dev(sc->sc_dev, "read 0x%08x (%d try)\n", res, ctr);
@ -249,14 +254,16 @@ delay(100);
/* if (sc->sc_dmamap->dm_nsegs > 0) { */ /* if (sc->sc_dmamap->dm_nsegs > 0) { */
bus_dmamap_sync(sc->sc_dmatag, sc->sc_dmamap, 0, nblock*16, BUS_DMASYNC_POSTWRITE); bus_dmamap_sync(sc->sc_dmatag, sc->sc_dmamap, 0, nblock*16, BUS_DMASYNC_POSTWRITE);
aprint_normal_dev(sc->sc_dev, "dma: synced (2)\n"); /* aprint_normal_dev(sc->sc_dev, "dma: synced (2)\n"); */
bus_dmamap_unload(sc->sc_dmatag, sc->sc_dmamap); bus_dmamap_unload(sc->sc_dmatag, sc->sc_dmamap);
aprint_normal_dev(sc->sc_dev, "dma: unloaded\n"); /* aprint_normal_dev(sc->sc_dev, "dma: unloaded\n"); */
bus_dmamem_unmap(sc->sc_dmatag, kvap, nblock*16); bus_dmamem_unmap(sc->sc_dmatag, kvap, nblock*16);
aprint_normal_dev(sc->sc_dev, "dma: unmapped\n"); /* aprint_normal_dev(sc->sc_dev, "dma: unmapped\n"); */
bus_dmamem_free(sc->sc_dmatag, &segs, 1); bus_dmamem_free(sc->sc_dmatag, &segs, 1);
aprint_normal_dev(sc->sc_dev, "dma: freed\n"); /* aprint_normal_dev(sc->sc_dev, "dma: freed\n"); */
/* } */
} }
if (uio->uio_resid > 0) if (uio->uio_resid > 0)