Trim a few comments on platforms that did not implement mmap of /dev/kmem.
After r307332, no platforms implement mmap for /dev/kmem, so the lack of it for these platforms is no longer unique.
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svn2git
2020-12-20 02:59:44 +00:00
svn path=/head/; revision=312086
@ -151,12 +151,6 @@ int
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memmmap(struct cdev *dev, vm_ooffset_t offset, vm_paddr_t *paddr,
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int prot, vm_memattr_t *memattr)
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{
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/*
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* /dev/mem is the only one that makes sense through this
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* interface. For /dev/kmem any physaddr we return here
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* could be transient and hence incorrect or invalid at
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* a later time.
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*/
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if (dev2unit(dev) != CDEV_MINOR_MEM)
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return (-1);
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@ -43,7 +43,7 @@ __FBSDID("$FreeBSD$");
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/*
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* Memory special file
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*
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* NOTE: other architectures support mmap()'ing the mem and kmem devices; this
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* NOTE: other architectures support mmap()'ing the mem device; this
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* might cause illegal aliases to be created for the locked kernel page(s), so
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* it is not implemented.
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*/
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