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| author | Andrew Turner <andrew@FreeBSD.org> | 2021-04-10 07:59:29 +0000 |
|---|---|---|
| committer | Andrew Turner <andrew@FreeBSD.org> | 2021-04-12 06:15:31 +0000 |
| commit | 5d2d599d3f3494d813e51e1bcd1c9693eb9c098b (patch) | |
| tree | cfdf3f1b3a9be4032f46f928ab83736b60b2af8e | |
| parent | bf5057691bb0d1160d729772cdb4c449e366f5b4 (diff) | |
| download | src-5d2d599d3f3494d813e51e1bcd1c9693eb9c098b.tar.gz src-5d2d599d3f3494d813e51e1bcd1c9693eb9c098b.zip | |
Create VM_MEMATTR_DEVICE on all architectures
This is intended to be used with memory mapped IO, e.g. from
bus_space_map with no flags, or pmap_mapdev.
Use this new memory type in the map request configured by
resource_init_map_request, and in pciconf.
Reviewed by: kib
Differential Revision: https://reviews.freebsd.org/D29692
| -rw-r--r-- | sys/amd64/include/vm.h | 1 | ||||
| -rw-r--r-- | sys/i386/include/vm.h | 1 | ||||
| -rw-r--r-- | sys/kern/subr_bus.c | 2 | ||||
| -rw-r--r-- | sys/mips/include/vm.h | 1 | ||||
| -rw-r--r-- | sys/powerpc/include/vm.h | 2 | ||||
| -rw-r--r-- | usr.sbin/pciconf/pciconf.c | 4 |
6 files changed, 6 insertions, 5 deletions
diff --git a/sys/amd64/include/vm.h b/sys/amd64/include/vm.h index 2e9c30da9936..fef7a53ca317 100644 --- a/sys/amd64/include/vm.h +++ b/sys/amd64/include/vm.h @@ -43,5 +43,6 @@ #define VM_MEMATTR_WEAK_UNCACHEABLE ((vm_memattr_t)PAT_UNCACHED) #define VM_MEMATTR_DEFAULT VM_MEMATTR_WRITE_BACK +#define VM_MEMATTR_DEVICE VM_MEMATTR_UNCACHEABLE #endif /* !_MACHINE_VM_H_ */ diff --git a/sys/i386/include/vm.h b/sys/i386/include/vm.h index 2e9c30da9936..fef7a53ca317 100644 --- a/sys/i386/include/vm.h +++ b/sys/i386/include/vm.h @@ -43,5 +43,6 @@ #define VM_MEMATTR_WEAK_UNCACHEABLE ((vm_memattr_t)PAT_UNCACHED) #define VM_MEMATTR_DEFAULT VM_MEMATTR_WRITE_BACK +#define VM_MEMATTR_DEVICE VM_MEMATTR_UNCACHEABLE #endif /* !_MACHINE_VM_H_ */ diff --git a/sys/kern/subr_bus.c b/sys/kern/subr_bus.c index 31975fb8977c..2a8cf00b5700 100644 --- a/sys/kern/subr_bus.c +++ b/sys/kern/subr_bus.c @@ -3155,7 +3155,7 @@ resource_init_map_request_impl(struct resource_map_request *args, size_t sz) { bzero(args, sz); args->size = sz; - args->memattr = VM_MEMATTR_UNCACHEABLE; + args->memattr = VM_MEMATTR_DEVICE; } /** diff --git a/sys/mips/include/vm.h b/sys/mips/include/vm.h index 06af199db17b..c759d8cfa61e 100644 --- a/sys/mips/include/vm.h +++ b/sys/mips/include/vm.h @@ -38,6 +38,7 @@ #define VM_MEMATTR_UNCACHEABLE ((vm_memattr_t)MIPS_CCA_UNCACHED) #define VM_MEMATTR_WRITE_BACK ((vm_memattr_t)MIPS_CCA_CACHED) #define VM_MEMATTR_DEFAULT VM_MEMATTR_WRITE_BACK +#define VM_MEMATTR_DEVICE VM_MEMATTR_UNCACHEABLE #ifdef MIPS_CCA_WC #define VM_MEMATTR_WRITE_COMBINING ((vm_memattr_t)MIPS_CCA_WC) #endif diff --git a/sys/powerpc/include/vm.h b/sys/powerpc/include/vm.h index 3af863509908..692bd8fc2d77 100644 --- a/sys/powerpc/include/vm.h +++ b/sys/powerpc/include/vm.h @@ -42,4 +42,6 @@ #define VM_MEMATTR_WRITE_THROUGH 0x10 #define VM_MEMATTR_PREFETCHABLE 0x20 +#define VM_MEMATTR_DEVICE VM_MEMATTR_DEFAULT + #endif /* !_MACHINE_VM_H_ */ diff --git a/usr.sbin/pciconf/pciconf.c b/usr.sbin/pciconf/pciconf.c index 6b54687d7c79..ccc816d5986d 100644 --- a/usr.sbin/pciconf/pciconf.c +++ b/usr.sbin/pciconf/pciconf.c @@ -1126,11 +1126,7 @@ dump_bar(const char *name, const char *reg, const char *bar_start, if (*reg == '\0' || *el != '\0') errx(1, "Invalid bar specification %s", reg); pbm.pbm_flags = 0; -#ifdef VM_MEMATTR_DEVICE pbm.pbm_memattr = VM_MEMATTR_DEVICE; -#else - pbm.pbm_memattr = VM_MEMATTR_UNCACHEABLE; -#endif fd = open(_PATH_DEVPCI, O_RDWR, 0); if (fd < 0) |