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| /freebsd-11-stable/sys/x86/isa/ | ||
| H A D | isa_dma.c | diff 199104 Mon Nov 09 18:35:36 MST 2009 rdivacky Make isa_dma functions MPSAFE by introducing its own private lock. These functions are selfcontained (ie. they touch only isa_dma.c static variables and hardware) so a private lock is sufficient to prevent races. This changes only i386/amd64 while there are also isa_dma functions for ia64/sparc64. Sparc64 are ones empty stubs and ia64 ones are unused as ia64 does not have isa (says marcel). This patch removes explicit locking of Giant from a few drivers (there are some that requires this but lack ones - this patch fixes this) and also removes the need for implicit locking of Giant from attach routines where it's provided by newbus. Approved by: ed (mentor, implicit) Reviewed by: jhb, attilio (glanced by) Tested by: Giovanni Trematerra <giovanni.trematerra gmail com> IA64 clue: marcel |
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