r351107 mav Aug. 15, 2019, 11:56 p.m.
MFC after:	2 weeks
ViewVC
r351106 rmacklem Aug. 15, 2019, 11:21 p.m.
When the byte range for copy_file_range(2) doesn't go to EOF on the
output file and there is a hole in the input file, a hole must be
"punched" in the output file. This is done by writing a block of bytes
all set to 0.
Without this patch, the write is done unconditionally which means that,
if the output file already has a hole in that byte range, a unneeded data block
of all 0 bytes would be allocated.
This patch adds code to check for a hole in the output file, so that it can
skip doing the write if there is already a hole in that byte range of
the output file. This avoids unnecessary allocation of blocks to the
output file.

Reviewed by:	kib
Differential Revision:	https://reviews.freebsd.org/D21155
ViewVC
r351105 mav Aug. 15, 2019, 10:55 p.m.
This adds safety net for the case of misconfigured NTB with too big
memory window, for which we may be unable to allocate a memory buffer,
which does not make much sense for the network interface.  While there,
fix the code to really work with asymmetric window sizes setup.

This makes driver just print warning message on boot instead of hanging
if too large memory window is configured.

MFC after:	2 weeks
Sponsored by:	iXsystems, Inc.
ViewVC
r351104 mmacy Aug. 15, 2019, 9:51 p.m.
Reported by:	mav@
ViewVC
r351102 asomers Aug. 15, 2019, 7:52 p.m.
This fixes -Wcast-align errors when compiled with WARNS=6.

Submitted by:	Ján Sučan <sucanjan@gmail.com>
MFC after:	2 weeks
Sponsored by:	Google, inc. (Google Summer of Code 2019)
Differential Revision:	https://reviews.freebsd.org/D21217
ViewVC
r351101 asomers Aug. 15, 2019, 7:27 p.m.
Submitted by:	Ján Sučan <sucanjan@gmail.com>
MFC after:	2 weeks
Sponsored by:	Google, inc. (Google Summer of Code 2019)
Differential Revision:	https://reviews.freebsd.org/D21273
ViewVC
r351100 manu Aug. 15, 2019, 6:59 p.m.
MFC after:	3 days
ViewVC
r351099 manu Aug. 15, 2019, 6:57 p.m.
In r350842 I've switched the bus pass to resource so it matches the other
clock drivers but this cannot work as this drivers is meant to match
the dts node '/clocks' and if we don't do it at this pass simplebus is
catching this node and we cannot attach.
This solve booting on Allwinner boards that are still using /clocks (A20 SoC)

MFC after:	3 days
ViewVC
r351098 mckusick Aug. 15, 2019, 6:46 p.m.
r351097 emaste Aug. 15, 2019, 6:43 p.m.
Many components under stand/ had CLANG_NO_IAS added when Clang's
Integrated Assembler did not handle .codeNN directives.  Clang gained
support quite some time ago, so we can build stand/ with IAS.

In some cases there were small differences in generated object output.
In the case of gptzfsboot however using GNU as or Clang IAS to assemble
gptldr.S resulted in identical final gptzfsboot binary output.

Sponsored by:	The FreeBSD Foundation
Differential Revision:	https://reviews.freebsd.org/D11115
ViewVC
r351096 emaste Aug. 15, 2019, 5:59 p.m.
Many components under stand/ had CLANG_NO_IAS added when Clang's
Integrated Assembler (IAS) did not handle .codeNN directives.  Clang
gained support quite some time ago, and we can now build stand/ with
IAS.  In most cases IAS- and GNU as-assembled boot components were
identical, and CLANG_NO_IAS was already removed from other components.

Clang IAS produces different output for some components, including
pxeldr, so CLANG_NO_IAS was not previously removed for those.

In the case of pxeldr the difference is that IAS adds a size override
prefix (67h) to three instructions to specify a 32-bit address, even
though the two high bytes are zero and the address fits in 16 bits.
this wastes three bytes per instruction and causes some additional nop
npadding to be required elsewhere in the object, but pxeboot is not
size-constrained so it doesn't matter.

Sponsored by:	The FreeBSD Foundation
ViewVC
r351095 jkim Aug. 15, 2019, 5:43 p.m.
Fix the reported boot failures and revert r350510.

Note this commit is effectively merging ACPICA 20190703 again and applying
an upstream patch.

https://github.com/acpica/acpica/commit/73f6372

Tested by:	scottl
ViewVC
r351093 kevans Aug. 15, 2019, 5:35 p.m.
strstr ends up using bcmp when compiled with llvm90; pull it in from libc
as well.

MFC after:	3 days
ViewVC
r351092 emaste Aug. 15, 2019, 5:32 p.m.
Many components under stand/ had CLANG_NO_IAS added when Clang's
Integrated Assembler (IAS) did not handle .codeNN directives.  Clang
gained support quite some time ago, and we can now build stand/ with
IAS.  In most cases IAS- and GNU as-assembled boot components were
identical, and CLANG_NO_IAS was already removed from other components.

Clang IAS produces different output for some components, including
cdboot, so CLANG_NO_IAS was not previously removed for those.

In the case of cdboot the difference is that IAS adds a size override
prefix (67h) to many instructions to specify a 32-bit address, even
though the two high bytes are zero.  This wastes three bytes per
instance, but as cdboot is not size-constrained it doesn't matter.
Padding is also different in one case; Clang used two one-byte nops
while GNU as used a single two-byte xchg %eax, %eax.  In any case, there
is no functional change.

Sponsored by:   The FreeBSD Foundation
ViewVC
r351090 asomers Aug. 15, 2019, 5:24 p.m.
The old code worked, but wasted some stack space.

Submitted by:	Ján Sučan <sucanjan@gmail.com>
MFC after:	2 weeks
Sponsored by:	Google, inc. (Google Summer of Code 2019)
Differential Revision:	https://reviews.freebsd.org/D21275
ViewVC