Module Name: src
Committed By: thorpej
Date: Sat Feb 29 18:07:57 UTC 2020
Modified Files:
src/sys/dev/pci: if_mcx.c
Log Message:
Use the 64-bit PCI DMA tag if available. Otherwise, we are needlessly
allocating (and using) bounce buffers on sytems with >4GB of RAM.
XXX pullup-9
To generate a diff of this commit:
cvs rdiff -u -r1.10 -r1.11 src/sys/dev/pci/if_mcx.c
Please note that diffs are not public domain; they are subject to the
copyright notices on the relevant files.
Modified files:
Index: src/sys/dev/pci/if_mcx.c
diff -u src/sys/dev/pci/if_mcx.c:1.10 src/sys/dev/pci/if_mcx.c:1.11
--- src/sys/dev/pci/if_mcx.c:1.10 Thu Jan 30 14:02:14 2020
+++ src/sys/dev/pci/if_mcx.c Sat Feb 29 18:07:57 2020
@@ -1,4 +1,4 @@
-/* $NetBSD: if_mcx.c,v 1.10 2020/01/30 14:02:14 thorpej Exp $ */
+/* $NetBSD: if_mcx.c,v 1.11 2020/02/29 18:07:57 thorpej Exp $ */
/* $OpenBSD: if_mcx.c,v 1.33 2019/09/12 04:23:59 jmatthew Exp $ */
/*
@@ -2215,7 +2215,10 @@ mcx_attach(device_t parent, device_t sel
sc->sc_dev = self;
sc->sc_pc = pa->pa_pc;
sc->sc_tag = pa->pa_tag;
- sc->sc_dmat = pa->pa_dmat;
+ if (pci_dma64_available(pa))
+ sc->sc_dmat = pa->pa_dmat64;
+ else
+ sc->sc_dmat = pa->pa_dmat;
/* Map the PCI memory space */
memtype = pci_mapreg_type(sc->sc_pc, sc->sc_tag, MCX_HCA_BAR);
