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4cee4598e7
freebsd-dev/sys
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Alexander Motin 4cee4598e7 Add mostly dummy hw.pci.enable_aspm tunable. 
The only thing this tunable enables now is reporting to ACPI _OSC that
Active State Power Management and Clock Power Management Capability are
"supported" by the OS.

I've found that at least some Supermicro server boards do not allow OS
to support native PCIe hot-plug unless it reports those capabilities.
After spending significant time in PCIe specs I have found very little
motivation for that, and none of it applies to those motherboards, not
enabling ASPM themselves.  So unless OS explicitly wants to save power,
I see nothing for it to do there actually.

I guess it may get sense to support ASPM when we get Thunderbolt support.
Otherwise I have no system with PCIe hot-plug where power saving matters.

It would be nice to enable this by default, but I worry that it affect
power saving of some laptops, even though I haven't noticed that myself.
2020-06-26 19:55:11 +00:00
..
amd64 bhyve(8): For prototyping, reattempt decode in userspace 2020-06-25 00:18:42 +00:00
arm Fix reboot command on the Raspberry Pi series. 2020-06-22 08:12:21 +00:00
arm64 arm64 armreg.h: fix TCR_TBI1 definition 2020-06-23 15:32:05 +00:00
bsm bsm: add AUE_CLOSERANGE 2020-04-24 01:27:25 +00:00
cam Use the more descriptive src_ccb and dst_ccb for the two ccbs being merged. 2020-06-20 04:07:23 +00:00
cddl MFOpenZFS: Add basic zfs ioc input nvpair validation 2020-06-23 06:42:39 +00:00
compat Implement an approximation of Linux MADV_DONTNEED semantics. 2020-06-25 20:30:30 +00:00
conf Add SCTP_SUPPORT to the default kernel options. 2020-06-25 19:12:27 +00:00
contrib Document upgrade procedure in FREEBSD-upgrade 2020-06-04 20:48:57 +00:00
crypto Use zfree() instead of bzero() and free(). 2020-06-25 20:20:22 +00:00
ddb [PowerPC] More relocation fixes 2020-06-21 03:39:26 +00:00
dev Add mostly dummy hw.pci.enable_aspm tunable. 2020-06-26 19:55:11 +00:00
dts Remove licenses 2020-06-04 17:20:58 +00:00
fs Add a boolean argument to nfscl_reqstart() to indicate that ext_pgs mbufs 2020-06-26 03:11:54 +00:00
gdb Mark more nodes as CTLFLAG_MPSAFE or CTLFLAG_NEEDGIANT (17 of many) 2020-02-26 14:26:36 +00:00
geom Use explicit_bzero() instead of bzero() for sensitive data. 2020-06-25 20:25:35 +00:00
gnu dts: patch the am33xx dts for upcoming clock support 2020-06-05 20:14:54 +00:00
i386 Adapt linuxulator syscalls.master files to the new layout. 2020-06-21 10:09:34 +00:00
isa sc(4) md bits: stop setting sc->kbd entirely 2019-12-30 02:07:55 +00:00
kern Use zfree() instead of explicit_bzero() and free(). 2020-06-25 20:17:34 +00:00
kgssapi Add support for optional separate output buffers to in-kernel crypto. 2020-05-25 22:12:04 +00:00
libkern libkern: Add arc4random_uniform 2020-05-23 17:51:06 +00:00
mips [PowerPC] More relocation fixes 2020-06-21 03:39:26 +00:00
modules ena: fix module build after r362530 2020-06-26 09:32:57 +00:00
net iflib: fix compilation issue introduced in r362621 2020-06-25 20:43:21 +00:00
net80211 [net80211] Add missing commit to previous-1 uapsd commit. 2020-06-16 00:28:45 +00:00
netgraph Update event masks constant to Bluetooth core spec V5.2 2020-06-15 14:58:40 +00:00
netinet Use zfree() instead of explicit_bzero() and free(). 2020-06-25 20:17:34 +00:00
netinet6 Add the SCTP_SUPPORT kernel option. 2020-06-18 19:32:34 +00:00
netipsec Simplify IPsec transform-specific teardown. 2020-06-25 23:59:16 +00:00
netpfil ipfw(4): make O_IPVER/ipversion match IPv4 or 6, not just IPv4. 2020-06-24 15:46:33 +00:00
netsmb Mark more nodes as CTLFLAG_MPSAFE or CTLFLAG_NEEDGIANT (17 of many) 2020-02-26 14:26:36 +00:00
nfs Use epoch(9) for rtentries to simplify control plane operations. 2020-05-23 10:21:02 +00:00
nfsclient
nfsserver
nlm Fix export_args ex_flags field so that is 64bits, the same as mnt_flags. 2020-06-14 00:10:18 +00:00
ofed Convert OFED rtable interactions to the new routing KPI. 2020-04-15 13:06:55 +00:00
opencrypto Zero the temporary HMAC key in hmac_init_pad(). 2020-06-25 20:18:55 +00:00
powerpc [PowerPC] More relocation fixes 2020-06-21 03:39:26 +00:00
riscv Only invalidate the early DTB mapping if it exists 2020-06-24 15:21:12 +00:00
rpc Fix up a comment added by r362455. 2020-06-21 02:49:56 +00:00
security mac_veriexec_fingerprint_check_vnode: v_writecount > 0 means active writers 2020-06-12 21:51:20 +00:00
sys Bump the version since r362639 changed the internal API between the NFS 2020-06-26 03:14:30 +00:00
teken
tests Mark more nodes as CTLFLAG_MPSAFE or CTLFLAG_NEEDGIANT (17 of many) 2020-02-26 14:26:36 +00:00
tools vfs: stop null checking routines in vop wrappers 2020-01-26 00:41:38 +00:00
ufs The binary representation of the superblock (the fs structure) is written 2020-06-19 01:04:25 +00:00
vm Call swap_pager_freespace() from vm_object_page_remove(). 2020-06-25 15:21:21 +00:00
x86 Assume all TSCs are synchronized for AMD Family 17h processors and later 2020-06-22 20:42:58 +00:00
xdr Split XDR into separate kernel module. Make krpc depend on xdr. 2020-04-17 06:04:20 +00:00
xen Mark more nodes as CTLFLAG_MPSAFE or CTLFLAG_NEEDGIANT (16 of many) 2020-02-25 19:04:39 +00:00
Makefile Remove sparc64 kernel support 2020-02-03 17:35:11 +00:00