wireguard-openbsd/sys/arch/alpha/dev/bus_dma.c, branch jd/queueboostsWireGuard implementation for the OpenBSD kernelhttps://git.zx2c4.com/wireguard-openbsd/atom/sys/arch/alpha/dev/bus_dma.c?h=jd%2Fqueueboosts2018-01-11T15:49:34ZAdd size for free.2018-01-11T15:49:34Zvisavisa@openbsd.org2018-01-11T15:49:34Zurn:sha1:71e03fc539f77d46e7ddba6bf070c0853220092f
OK mpi@
Replace a plethora of historical protection options with just2014-11-16T12:30:52Zderaadtderaadt@openbsd.org2014-11-16T12:30:52Zurn:sha1:1e8cdc2e593c4e9ec7f4bdac2fbf48a4ad29f5b8
PROT_NONE, PROT_READ, PROT_WRITE, and PROT_EXEC from mman.h.
PROT_MASK is introduced as the one true way of extracting those bits.
Remove UVM_ADV_* wrapper, using the standard names.
ok doug guenther kettenis
Replace all queue *_END macro calls except CIRCLEQ_END with NULL.2014-09-13T16:06:36Zdougdoug@openbsd.org2014-09-13T16:06:36Zurn:sha1:abcbcc4d80a0ed0907ba123021478336e6ec4c4a
CIRCLEQ_* is deprecated and not called in the tree. The other queue types
have *_END macros which were added for symmetry with CIRCLEQ_END. They are
defined as NULL. There's no reason to keep the other *_END macro calls.
ok millert@
add a size argument to free. will be used soon, but for now default to 0.2014-07-12T18:44:40Ztedutedu@openbsd.org2014-07-12T18:44:40Zurn:sha1:f8e6c4256e251ce0386dacd7e411f1d0894ef80e
after discussions with beck deraadt kettenis.
Convert bus_dmamem_map(9) to km_alloc(9) in order to make it fail and2014-07-11T09:36:25Zmpimpi@openbsd.org2014-07-11T09:36:25Zurn:sha1:c1e6d80a356903891c9f6b053cef3cbb5a1bc7db
not sleep if the allocator cannot obtain a lock when BUS_DMA_NOWAIT is
specified.
idea and inputs from kettenis@, ok miod@
Fix the error path in bus_dmamem_map.2011-06-23T20:44:38Zarianeariane@openbsd.org2011-06-23T20:44:38Zurn:sha1:b4a9c0fda45ae6f40245b3824303d18a597433ff
As discussed on icb: remove the comment,
remove pmap_remove (uvm_km_free does that for us).
ok oga@, deraadt@
Kill pmap_phys_address(), and force every driver's mmap() routine to return2010-12-26T15:40:57Zmiodmiod@openbsd.org2010-12-26T15:40:57Zurn:sha1:97c974cd9b1866333f779ef7152beb9ce2345b4f
a physical address [more precisely, something suitable to pass to pmap_enter()'sphysical address argument].
This allows MI drivers to implement mmap() routines without having to know
about the pmap_phys_address() implementation and #ifdef obfuscation.
This is a first step towards getting rid of avail_start and avail_end in the2010-11-20T20:33:21Zmiodmiod@openbsd.org2010-11-20T20:33:21Zurn:sha1:916e928b748d205ed7dd2b5402633c775908f1b7
kernel, currently limited to low-hanging fruit: these variables were used
by bus_dma to specify the range in which to allocate memory, back when
uvm_pglistalloc() was stupid and would not walk the vm_physseg[].
Nowadays, except on some platforms for early initialization, these variables
are not used, or do not need to be global variables. Therefore:
- remove `extern' declarations of avail_start and avail_end (or close cousins,
such as arm physical_start and physical_end) from files which no longer need
to use them.
- make them local variables whenever possible.
- remove them when they are assigned to but no longer used.
pmap_extract() does the equivalent of vtophys if pmap_kernel(), so instead of2010-04-10T13:46:12Zogaoga@openbsd.org2010-04-10T13:46:12Zurn:sha1:2390d34d4032f0806418425de2464a519266ff90
doing if (p != NULL) pmap_extract() else vtophys() in a loop, just do
pmap_extract unconditionally.
ok miod@ (he found a typo, all hail miod!)
PMAP_CANFAIL for bus_dmamem_map on all other architectures (and some2010-03-29T19:21:58Zogaoga@openbsd.org2010-03-29T19:21:58Zurn:sha1:0cc963f81d5bd0000c9ac03e3207df8d8830aaa9
whitespace tweaks on i386 so that it matches).
ok kettenis@