CVS commit: syssrc/sys/arch

[Jason R Thorpe <thorpej%netbsd.org@localhost>]

Module Name:    syssrc
Committed By:   thorpej
Date:           Sat Aug 17 20:46:29 UTC 2002

Modified Files:
        syssrc/sys/arch/arm/footbridge: footbridge_pci.c
        syssrc/sys/arch/arm/footbridge/isa: isadma_machdep.c
        syssrc/sys/arch/arm/include: bus.h
        syssrc/sys/arch/arm/ixp12x0: ixp12x0_pci_dma.c
        syssrc/sys/arch/arm/xscale: i80312.c i80321.c
        syssrc/sys/arch/evbarm/ifpga: ifpga_pci.c
        syssrc/sys/arch/evbarm/integrator: int_bus_dma.c
        syssrc/sys/arch/shark/isa: isadma_machdep.c

Log Message:
Use separate function pointers for dmamap_sync pre- vs post- operations.
Change the bus_dmamap_sync() macro to test the ops argument against pre-
and post- constants.  The compiler will optimize out dead code because
of the constants.  Since post- operations are not needed on ARM (except
for ISA bounce buffers), this eliminate a large number of function calls
which are noops, each of which cost at least 6 cycles just in the call
and return overhead (not to mention whatever other useless work the
compiler decides to do in the callee).


To generate a diff of this commit:
cvs rdiff -r1.4 -r1.5 syssrc/sys/arch/arm/footbridge/footbridge_pci.c
cvs rdiff -r1.2 -r1.3 syssrc/sys/arch/arm/footbridge/isa/isadma_machdep.c
cvs rdiff -r1.7 -r1.8 syssrc/sys/arch/arm/include/bus.h
cvs rdiff -r1.2 -r1.3 syssrc/sys/arch/arm/ixp12x0/ixp12x0_pci_dma.c
cvs rdiff -r1.10 -r1.11 syssrc/sys/arch/arm/xscale/i80312.c
cvs rdiff -r1.6 -r1.7 syssrc/sys/arch/arm/xscale/i80321.c
cvs rdiff -r1.3 -r1.4 syssrc/sys/arch/evbarm/ifpga/ifpga_pci.c
cvs rdiff -r1.10 -r1.11 syssrc/sys/arch/evbarm/integrator/int_bus_dma.c
cvs rdiff -r1.2 -r1.3 syssrc/sys/arch/shark/isa/isadma_machdep.c

Please note that diffs are not public domain; they are subject to the
copyright notices on the relevant files.