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- Make a panic message better reflect the actual problem.

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- A closer inspection of the OpenSolaris code indicates the block store
  workaround is only necessary in case of BUS_DMASYNC_POSTREAD.
- Mark some unused parameters as such.
This commit is contained in:
marius 2011-03-19 20:36:05 +00:00
parent b3fb445553
commit 7c3982eb1d
1 changed files with 15 additions and 13 deletions
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28
sys/sparc64/pci/fire.c
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@ -337,7 +337,7 @@ fire_attach(device_t dev)
if (OF_getprop(node, "portid", &sc->sc_ign, sizeof(sc->sc_ign)) == -1)
panic("%s: could not determine IGN", __func__);
if (OF_getprop(node, "module-revision#", &prop, sizeof(prop)) == -1)
panic("%s: could not determine revision", __func__);
panic("%s: could not determine module-revision", __func__);
device_printf(dev, "%s, module-revision %d, IGN %#x\n",
desc->fd_name, prop, sc->sc_ign);
@ -1510,18 +1510,20 @@ fire_dmamap_sync(bus_dma_tag_t dt __unused, bus_dmamap_t map,
static u_char buf[VIS_BLOCKSIZE] __aligned(VIS_BLOCKSIZE);
register_t reg, s;
if ((map->dm_flags & DMF_LOADED) == 0 ||
(op & ~BUS_DMASYNC_POSTWRITE) == 0)
if ((map->dm_flags & DMF_LOADED) == 0)
return;
s = intr_disable();
reg = rd(fprs);
wr(fprs, reg | FPRS_FEF, 0);
__asm __volatile("stda %%f0, [%0] %1"
: : "r" (buf), "n" (ASI_BLK_COMMIT_S));
membar(Sync);
wr(fprs, reg, 0);
intr_restore(s);
if ((op & BUS_DMASYNC_POSTREAD) != 0) {
s = intr_disable();
reg = rd(fprs);
wr(fprs, reg | FPRS_FEF, 0);
__asm __volatile("stda %%f0, [%0] %1"
: : "r" (buf), "n" (ASI_BLK_COMMIT_S));
membar(Sync);
wr(fprs, reg, 0);
intr_restore(s);
} else if ((op & BUS_DMASYNC_PREWRITE) != 0)
membar(Sync);
}
static void
@ -2128,7 +2130,7 @@ fire_release_resource(device_t bus, device_t child, int type, int rid,
}
static bus_dma_tag_t
fire_get_dma_tag(device_t bus, device_t child)
fire_get_dma_tag(device_t bus, device_t child __unused)
{
struct fire_softc *sc;
@ -2137,7 +2139,7 @@ fire_get_dma_tag(device_t bus, device_t child)
}
static phandle_t
fire_get_node(device_t bus, device_t dev)
fire_get_node(device_t bus, device_t child __unused)
{
struct fire_softc *sc;