From: Ingo Molnar <mingo@kernel.org>
To: Andrew Morton <akpm@linux-foundation.org>,
Jonathan Corbet <corbet@lwn.net>
Cc: Peter Zijlstra <peterz@infradead.org>,
Josh Triplett <josh@joshtriplett.org>,
Andy Lutomirski <luto@amacapital.net>,
Ingo Molnar <mingo@redhat.com>, "H. Peter Anvin" <hpa@zytor.com>,
Thomas Gleixner <tglx@linutronix.de>,
Linus Torvalds <torvalds@linux-foundation.org>,
linux-api@vger.kernel.org, linux-kernel@vger.kernel.org,
x86@kernel.org, linux-arch@vger.kernel.org,
Borislav Petkov <bp@alien8.de>
Subject: Re: [RFC PATCH v3] Documentation/arch: Add Documentation/arch-TODO
Date: Wed, 13 May 2015 11:46:23 +0200 [thread overview]
Message-ID: <20150513094622.GC11030@gmail.com> (raw)
In-Reply-To: <20150513092421.GB11030@gmail.com>
So this is the final version for now:
- add a fourth table
- fix errors in earlier tables, in particular I missed some PowerPC
Kconfigs
- introduce the '..' denotion (in the final table) to show features
that cannot be supported by an architecture due to hardware
dependencies:
gcov-profile-all:---------------.
THP:--------. |
irq-time-acct:-. | |
| | |
----------------------------------------
alpha | TODO | TODO | TODO |
arc | TODO | .. | TODO |
arm | ok | ok | ok |
arm64 | TODO | ok | ok |
avr32 | TODO | .. | TODO |
blackfin | TODO | .. | TODO |
c6x | TODO | .. | TODO |
so in the 'THP' column, if an architecture could in theory support
THP, it's listed as 'TODO', if it cannot, it's listed as '..'.
Please let me know about errors in these tables, and I can also add
more features/facilities as well if I missed any.
Thanks,
Ingo
==========================>
>From a44b9e91788a2628e1223d143024de4572a924c3 Mon Sep 17 00:00:00 2001
From: Ingo Molnar <mingo@kernel.org>
Date: Wed, 13 May 2015 10:30:11 +0200
Subject: [PATCH] Documentation/arch: Add Documentation/arch-TODO
Add a TODO list for missing/incomplete architecture support
for generic kernel features.
Signed-off-by: Ingo Molnar <mingo@kernel.org>
---
Documentation/arch-TODO | 169 ++++++++++++++++++++++++++++++++++++++++++++++++
1 file changed, 169 insertions(+)
diff --git a/Documentation/arch-TODO b/Documentation/arch-TODO
new file mode 100644
index 000000000000..0880914e1eaf
--- /dev/null
+++ b/Documentation/arch-TODO
@@ -0,0 +1,169 @@
+
+For generic kernel features that need architecture support, this is
+the feature support matrix, for all upstream Linux architectures:
+
+ ELF-ASLR:---------------------------------------------------------.
+ clockevents:--------------------------------------------------. |
+ modern-timekeeping:-------------------------------------------. | |
+ kgdb:------------------------------------. | | |
+ context-tracking:-----------------------------. | | | |
+ seccomp-filter:----------------------. | | | | |
+ jump-labels:---------------. | | | | | |
+ stackprotector:--------. | | | | | | |
+ lockdep:-. | | | | | | | |
+ | | | | | | | | |
+----------------------------------------------------------------------------------
+ alpha | TODO | TODO | TODO | TODO | TODO | TODO | ok | ok | TODO |
+ arc | ok | TODO | TODO | TODO | TODO | ok | ok | ok | TODO |
+ arm | ok | ok | ok | ok | ok | ok | TODO | ok | ok |
+ arm64 | ok | ok | ok | ok | ok | ok | ok | ok | ok |
+ avr32 | ok | TODO | TODO | TODO | TODO | TODO | ok | ok | TODO |
+ blackfin | ok | TODO | TODO | TODO | TODO | ok | TODO | ok | TODO |
+ c6x | TODO | TODO | TODO | TODO | TODO | TODO | ok | ok | TODO |
+ cris | TODO | TODO | TODO | TODO | TODO | TODO | TODO | ok | TODO |
+ frv | TODO | TODO | TODO | TODO | TODO | TODO | ok | TODO | TODO |
+ hexagon | ok | TODO | TODO | TODO | TODO | ok | ok | ok | TODO |
+ ia64 | TODO | TODO | TODO | TODO | TODO | TODO | ok | TODO | TODO |
+ m32r | TODO | TODO | TODO | TODO | TODO | TODO | TODO | TODO | TODO |
+ m68k | TODO | TODO | TODO | TODO | TODO | TODO | TODO | ok | TODO |
+ metag | ok | TODO | TODO | TODO | TODO | TODO | ok | ok | TODO |
+ microblaze | ok | TODO | TODO | TODO | TODO | ok | ok | ok | TODO |
+ mips | ok | ok | ok | ok | ok | ok | ok | ok | ok |
+ mn10300 | TODO | TODO | TODO | TODO | TODO | ok | ok | ok | TODO |
+ nios2 | TODO | TODO | TODO | TODO | TODO | ok | ok | ok | TODO |
+ openrisc | TODO | TODO | TODO | TODO | TODO | TODO | ok | ok | TODO |
+ parisc | TODO | TODO | TODO | TODO | TODO | TODO | ok | TODO | TODO |
+ powerpc | ok | TODO | ok | TODO | ok | ok | ok | ok | ok |
+ s390 | ok | TODO | ok | ok | TODO | TODO | ok | ok | ok |
+ score | ok | TODO | TODO | TODO | TODO | TODO | ok | ok | TODO |
+ sh | ok | ok | TODO | TODO | TODO | ok | ok | ok | TODO |
+ sparc | ok | TODO | ok | TODO | ok | ok | ok | ok | TODO |
+ tile | ok | TODO | TODO | TODO | ok | ok | ok | ok | TODO |
+ um | ok | TODO | TODO | TODO | TODO | TODO | ok | ok | TODO |
+ unicore32 | ok | TODO | TODO | TODO | TODO | TODO | ok | ok | TODO |
+ x86 | ok | ok | ok | ok | ok | ok | ok | ok | ok |
+ xtensa | ok | TODO | TODO | TODO | TODO | TODO | ok | ok | TODO |
+----------------------------------------------------------------------------------
+
+ tracehook:---------------------------------------------------------.
+ ioremap_prot():--------------------------------------------------. |
+ user-ret-profiler:-------------------------------------------. | |
+ kretprobes:------------------------------------. | | |
+ uprobes:-----------------------------. | | | |
+ kprobes-on-ftrace:----------------------. | | | | |
+ optprobes:---------------. | | | | | |
+ kprobes:--------. | | | | | | |
+arch-tick-broadcast:-. | | | | | | | |
+ | | | | | | | | |
+----------------------------------------------------------------------------------
+ alpha | TODO | TODO | TODO | TODO | TODO | TODO | TODO | TODO | TODO |
+ arc | TODO | ok | TODO | TODO | TODO | ok | TODO | ok | ok |
+ arm | ok | ok | ok | TODO | ok | ok | TODO | TODO | ok |
+ arm64 | ok | TODO | TODO | TODO | TODO | TODO | TODO | TODO | ok |
+ avr32 | TODO | ok | TODO | TODO | TODO | TODO | TODO | TODO | TODO |
+ blackfin | TODO | TODO | TODO | TODO | TODO | TODO | TODO | TODO | ok |
+ c6x | TODO | TODO | TODO | TODO | TODO | TODO | TODO | TODO | ok |
+ cris | TODO | TODO | TODO | TODO | TODO | TODO | TODO | TODO | TODO |
+ frv | TODO | TODO | TODO | TODO | TODO | TODO | TODO | TODO | ok |
+ hexagon | TODO | TODO | TODO | TODO | TODO | TODO | TODO | TODO | ok |
+ ia64 | TODO | ok | TODO | TODO | TODO | ok | TODO | TODO | ok |
+ m32r | TODO | TODO | TODO | TODO | TODO | TODO | TODO | TODO | TODO |
+ m68k | TODO | TODO | TODO | TODO | TODO | TODO | TODO | TODO | TODO |
+ metag | TODO | TODO | TODO | TODO | TODO | TODO | TODO | TODO | ok |
+ microblaze | TODO | TODO | TODO | TODO | TODO | TODO | TODO | TODO | TODO |
+ mips | ok | ok | TODO | TODO | TODO | ok | TODO | TODO | ok |
+ mn10300 | TODO | TODO | TODO | TODO | TODO | TODO | TODO | TODO | ok |
+ nios2 | TODO | TODO | TODO | TODO | TODO | TODO | TODO | TODO | ok |
+ openrisc | TODO | TODO | TODO | TODO | TODO | TODO | TODO | TODO | ok |
+ parisc | TODO | TODO | TODO | TODO | TODO | TODO | TODO | TODO | TODO |
+ powerpc | ok | ok | TODO | TODO | ok | ok | TODO | ok | ok |
+ s390 | TODO | ok | TODO | TODO | ok | ok | TODO | TODO | ok |
+ score | TODO | TODO | TODO | TODO | TODO | TODO | TODO | TODO | TODO |
+ sh | TODO | ok | TODO | TODO | TODO | ok | TODO | ok | ok |
+ sparc | TODO | ok | TODO | TODO | TODO | ok | TODO | TODO | ok |
+ tile | TODO | ok | ok | TODO | TODO | ok | ok | ok | ok |
+ um | TODO | TODO | TODO | TODO | TODO | TODO | TODO | TODO | TODO |
+ unicore32 | TODO | TODO | TODO | TODO | TODO | TODO | TODO | TODO | TODO |
+ x86 | TODO | ok | ok | ok | ok | ok | ok | ok | ok |
+ xtensa | TODO | TODO | TODO | TODO | TODO | TODO | TODO | TODO | TODO |
+----------------------------------------------------------------------------------
+
+ virt-cpuacct:---------------------------------------------------------.
+ cmpxchg-local:--------------------------------------------------. |
+ perf-stackdump:-------------------------------------------. | |
+ perf-regs:------------------------------------. | | |
+ dma-api-debug:-----------------------------. | | | |
+ kprobes-event:----------------------. | | | | |
+ dma-contiguous:---------------. | | | | | |
+ dma_*map*_attrs():--------. | | | | | | |
+generic-idle-thread:-. | | | | | | | |
+ | | | | | | | | |
+----------------------------------------------------------------------------------
+ alpha | ok | ok | TODO | TODO | TODO | TODO | TODO | TODO | ok |
+ arc | ok | TODO | TODO | TODO | TODO | TODO | TODO | TODO | TODO |
+ arm | ok | ok | ok | ok | ok | ok | ok | TODO | ok |
+ arm64 | ok | ok | ok | TODO | ok | ok | ok | TODO | ok |
+ avr32 | TODO | TODO | TODO | TODO | TODO | TODO | TODO | TODO | TODO |
+ blackfin | ok | TODO | TODO | TODO | TODO | TODO | TODO | TODO | TODO |
+ c6x | TODO | TODO | TODO | TODO | ok | TODO | TODO | TODO | TODO |
+ cris | TODO | TODO | TODO | TODO | TODO | TODO | TODO | TODO | TODO |
+ frv | TODO | TODO | TODO | TODO | TODO | TODO | TODO | TODO | TODO |
+ hexagon | ok | ok | TODO | ok | TODO | TODO | TODO | TODO | TODO |
+ ia64 | ok | ok | TODO | TODO | ok | TODO | TODO | TODO | ok |
+ m32r | TODO | TODO | TODO | TODO | TODO | TODO | TODO | TODO | TODO |
+ m68k | TODO | TODO | TODO | TODO | TODO | TODO | TODO | TODO | TODO |
+ metag | ok | TODO | TODO | TODO | TODO | TODO | TODO | TODO | TODO |
+ microblaze | TODO | ok | TODO | TODO | ok | TODO | TODO | TODO | TODO |
+ mips | ok | ok | ok | TODO | ok | TODO | TODO | TODO | ok |
+ mn10300 | TODO | TODO | TODO | TODO | TODO | TODO | TODO | TODO | TODO |
+ nios2 | TODO | TODO | TODO | TODO | TODO | TODO | TODO | TODO | TODO |
+ openrisc | TODO | ok | TODO | TODO | TODO | TODO | TODO | TODO | TODO |
+ parisc | ok | TODO | TODO | TODO | TODO | TODO | TODO | TODO | ok |
+ powerpc | ok | ok | TODO | ok | ok | TODO | TODO | TODO | ok |
+ s390 | ok | ok | TODO | ok | ok | TODO | TODO | ok | ok |
+ score | TODO | TODO | TODO | TODO | TODO | TODO | TODO | TODO | TODO |
+ sh | ok | ok | TODO | ok | ok | TODO | TODO | TODO | TODO |
+ sparc | ok | ok | TODO | TODO | ok | TODO | TODO | TODO | ok |
+ tile | TODO | ok | TODO | ok | ok | TODO | TODO | TODO | ok |
+ um | TODO | TODO | TODO | TODO | TODO | TODO | TODO | TODO | TODO |
+ unicore32 | TODO | ok | TODO | TODO | TODO | TODO | TODO | TODO | TODO |
+ x86 | ok | ok | ok | ok | ok | ok | ok | ok | ok |
+ xtensa | ok | TODO | TODO | TODO | TODO | TODO | TODO | TODO | TODO |
+----------------------------------------------------------------------------------
+
+ gcov-profile-all:---------------.
+ THP:--------. |
+ irq-time-acct:-. | |
+ | | |
+----------------------------------------
+ alpha | TODO | TODO | TODO |
+ arc | TODO | .. | TODO |
+ arm | ok | ok | ok |
+ arm64 | TODO | ok | ok |
+ avr32 | TODO | .. | TODO |
+ blackfin | TODO | .. | TODO |
+ c6x | TODO | .. | TODO |
+ cris | TODO | .. | TODO |
+ frv | TODO | .. | TODO |
+ hexagon | TODO | .. | TODO |
+ ia64 | TODO | TODO | TODO |
+ m32r | TODO | .. | TODO |
+ m68k | TODO | .. | TODO |
+ metag | TODO | .. | TODO |
+ microblaze | TODO | .. | ok |
+ mips | ok | ok | TODO |
+ mn10300 | TODO | .. | TODO |
+ nios2 | TODO | .. | TODO |
+ openrisc | TODO | .. | TODO |
+ parisc | TODO | TODO | TODO |
+ powerpc | TODO | ok | ok |
+ s390 | TODO | ok | ok |
+ score | TODO | .. | TODO |
+ sh | TODO | .. | ok |
+ sparc | TODO | ok | TODO |
+ tile | TODO | TODO | TODO |
+ um | TODO | .. | TODO |
+ unicore32 | TODO | .. | TODO |
+ x86 | ok | ok | ok |
+ xtensa | ok | .. | TODO |
+----------------------------------------
next prev parent reply other threads:[~2015-05-13 9:46 UTC|newest]
Thread overview: 46+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-05-11 19:29 [PATCHv2 1/2] clone: Support passing tls argument via C rather than pt_regs magic Josh Triplett
2015-05-12 21:22 ` Andrew Morton
2015-05-12 21:38 ` Peter Zijlstra
[not found] ` <20150512213843.GV21418-ndre7Fmf5hadTX5a5knrm8zTDFooKrT+cvkQGrU6aU0@public.gmane.org>
2015-05-12 21:49 ` Andrew Morton
[not found] ` <20150512144910.0b49c9a7a13336773449db33-de/tnXTf+JLsfHDXvbKv3WD2FQJk+8+b@public.gmane.org>
2015-05-13 8:34 ` [RFC PATCH] Documentation/arch: Add Documentation/arch-TODO Ingo Molnar
2015-05-13 8:56 ` [RFC PATCH v2] " Ingo Molnar
[not found] ` <20150513085636.GA11030-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
2015-05-13 9:24 ` [RFC PATCH v3] " Ingo Molnar
2015-05-13 9:46 ` Ingo Molnar [this message]
[not found] ` <20150513094622.GC11030-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
2015-05-13 9:47 ` [RFC PATCH v5] " Ingo Molnar
2015-05-13 13:18 ` Borislav Petkov
[not found] ` <20150513131835.GJ1517-fF5Pk5pvG8Y@public.gmane.org>
2015-05-13 13:48 ` [RFC PATCH v6] Documentation/arch: Add Documentation/arch-features.txt Ingo Molnar
2015-05-13 16:27 ` Josh Triplett
2015-05-13 16:53 ` Josh Triplett
2015-05-14 10:16 ` Ingo Molnar
[not found] ` <20150514101615.GB27550-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
2015-05-14 10:31 ` Josh Triplett
2015-05-13 22:05 ` Andrew Morton
[not found] ` <20150513150523.ddd65d7cd51f820b78f0c8e3-de/tnXTf+JLsfHDXvbKv3WD2FQJk+8+b@public.gmane.org>
2015-05-14 10:02 ` Ingo Molnar
2015-05-14 10:15 ` [PATCH] Documentation/arch: Add kernel feature descriptions and arch support status under Documentation/features/ Ingo Molnar
[not found] ` <20150514101518.GA27550-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
2015-05-14 10:35 ` [PATCH v2] " Ingo Molnar
2015-05-14 19:38 ` Andrew Morton
2015-05-14 19:59 ` Ingo Molnar
[not found] ` <20150514195925.GA27570-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
2015-05-14 22:33 ` Stephen Rothwell
[not found] ` <20150515083334.535ad43e-3FnU+UHB4dNDw9hX6IcOSA@public.gmane.org>
2015-05-15 7:38 ` Ingo Molnar
[not found] ` <20150515073805.GA14993-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
2015-05-15 7:51 ` Ingo Molnar
2015-05-15 9:37 ` Ingo Molnar
[not found] ` <20150514123835.1bf436bc35d711f8dbf9bc0f-de/tnXTf+JLsfHDXvbKv3WD2FQJk+8+b@public.gmane.org>
2015-05-14 20:34 ` Richard Weinberger
2015-05-14 22:57 ` Michael Ellerman
[not found] ` <1431644248.2981.1.camel-Gsx/Oe8HsFggBc27wqDAHg@public.gmane.org>
2015-05-15 7:49 ` Ingo Molnar
2015-05-18 1:37 ` Michael Ellerman
[not found] ` <1431913033.13218.2.camel-Gsx/Oe8HsFggBc27wqDAHg@public.gmane.org>
2015-05-18 8:54 ` Ingo Molnar
[not found] ` <20150518085423.GA24944-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
2015-05-19 2:02 ` Michael Ellerman
[not found] ` <20150514103544.GA7027-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
2015-05-22 15:49 ` Jonathan Corbet
[not found] ` <20150522094931.78a43421-T1hC0tSOHrs@public.gmane.org>
2015-05-23 8:07 ` Ingo Molnar
2015-05-24 18:44 ` Jonathan Corbet
[not found] ` <20150524124447.0c395540-T1hC0tSOHrs@public.gmane.org>
2015-06-03 11:03 ` [GIT PULL] Documentation/features: Add kernel feature descriptions and arch support status files " Ingo Molnar
[not found] ` <20150603110355.GA12079-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
2015-06-08 23:08 ` Jonathan Corbet
2015-05-14 7:08 ` [RFC PATCH v6] Documentation/arch: Add Documentation/arch-features.txt Ingo Molnar
2015-05-14 3:55 ` Paul Mackerras
2015-05-14 7:02 ` Ingo Molnar
[not found] ` <20150513094756.GD11030-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
2015-05-13 14:09 ` [RFC PATCH v5] Documentation/arch: Add Documentation/arch-TODO Michele Curti
2015-05-13 14:42 ` Geert Uytterhoeven
[not found] ` <CAMuHMdXV68nie93Rb=Z+vYtn2aNex=s5E4+Z=QGojF+8EbPbKA-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2015-05-14 7:21 ` H. Peter Anvin
2015-05-14 7:21 ` H. Peter Anvin
[not found] ` <20150512142250.dcb053da81855ae1b5861173-de/tnXTf+JLsfHDXvbKv3WD2FQJk+8+b@public.gmane.org>
2015-05-13 0:53 ` [PATCHv2 1/2] clone: Support passing tls argument via C rather than pt_regs magic josh-iaAMLnmF4UmaiuxdJuQwMA
2015-05-13 22:56 ` Andrew Morton
[not found] ` <20150513155628.65dc253bea9485cb7910678b-de/tnXTf+JLsfHDXvbKv3WD2FQJk+8+b@public.gmane.org>
2015-05-13 23:25 ` josh-iaAMLnmF4UmaiuxdJuQwMA
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