From: Michael Ellerman <patch-notifications@ellerman.id.au>
To: linuxppc-dev@lists.ozlabs.org, Oliver O'Halloran <oohall@gmail.com>
Cc: Paul Mackerras <paulus@samba.org>
Subject: Re: [PATCH 01/18] powerpc/pci: Add ppc_md.discover_phbs()
Date: Wed, 10 Feb 2021 23:57:43 +1100 (AEDT) [thread overview]
Message-ID: <161296170638.3178259.9042764630687204810.b4-ty@ellerman.id.au> (raw)
In-Reply-To: <20201103043523.916109-1-oohall@gmail.com>
On Tue, 3 Nov 2020 15:35:06 +1100, Oliver O'Halloran wrote:
> On many powerpc platforms the discovery and initalisation of
> pci_controllers (PHBs) happens inside of setup_arch(). This is very early
> in boot (pre-initcalls) and means that we're initialising the PHB long
> before many basic kernel services (slab allocator, debugfs, a real ioremap)
> are available.
>
> On PowerNV this causes an additional problem since we map the PHB registers
> with ioremap(). As of commit d538aadc2718 ("powerpc/ioremap: warn on early
> use of ioremap()") a warning is printed because we're using the "incorrect"
> API to setup and MMIO mapping in searly boot. The kernel does provide
> early_ioremap(), but that is not intended to create long-lived MMIO
> mappings and a seperate warning is printed by generic code if
> early_ioremap() mappings are "leaked."
>
> [...]
Applied to powerpc/next.
[01/18] powerpc/pci: Add ppc_md.discover_phbs()
https://git.kernel.org/powerpc/c/5537fcb319d016ce387f818dd774179bc03217f5
[02/18] powerpc/pci: Move PHB discovery for PCI_DN using platforms
https://git.kernel.org/powerpc/c/fbbefb320214db14c3e740fce98e2c95c9d0669b
[03/18] powerpc/maple: Move PHB discovery
(squashed into 2)
[04/18] powerpc/512x: Move PHB discovery
https://git.kernel.org/powerpc/c/893586ec949d3e48573a585c26bf04998fea6e1f
[05/18] powerpc/52xx/efika: Move PHB discovery
https://git.kernel.org/powerpc/c/eab3166f4eac384b48ebd2ed7b61dc465c1912cf
[06/18] powerpc/52xx/lite5200: Move PHB discovery
https://git.kernel.org/powerpc/c/e0bf9de2242a31a8f79015376ed08c4efe74774a
[07/18] powerpc/52xx/media5200: Move PHB discovery
https://git.kernel.org/powerpc/c/ba5087622a0f11c8d3c6587392ebc70f96503e51
[08/18] powerpc/52xx/mpc5200_simple: Move PHB discovery
https://git.kernel.org/powerpc/c/a760cfd9cfa2193961d7e599f46fbfe2498c400a
[09/18] powerpc/82xx/*: Move PHB discovery
https://git.kernel.org/powerpc/c/3c82a6aecd367bbbe7876c406cd3e12b5b0e4204
[10/18] powerpc/83xx: Move PHB discovery
https://git.kernel.org/powerpc/c/83f84041ff1cf6c23fc38861218af2d4ca2d9b38
[11/18] powerpc/amigaone: Move PHB discovery
https://git.kernel.org/powerpc/c/053d58c870298d62b9c5154672ef2f1684c4ea43
[12/18] powerpc/chrp: Move PHB discovery
https://git.kernel.org/powerpc/c/407d418f2fd4c20aa8ca1cf4168a414d77766852
[13/18] powerpc/embedded6xx/holly: Move PHB discovery
https://git.kernel.org/powerpc/c/08c4738254b87117c69816d8033dd25f38185f92
[14/18] powerpc/embedded6xx/linkstation: Move PHB discovery
https://git.kernel.org/powerpc/c/daa6c24780c15f4abcb76a9d426142beff9f62c6
[15/18] powerpc/embedded6xx/mpc7448: Move PHB discovery
https://git.kernel.org/powerpc/c/748770aeb44108ecb4e09d273e7718611cd60a98
[16/18] powerpc/embedded6xx/mve5100: Move PHB discovery
https://git.kernel.org/powerpc/c/d20a864f434b277b245ac6508920d90a48f6155d
[17/18] powerpc/pasemi: Move PHB discovery
https://git.kernel.org/powerpc/c/c144bc719234500e292c0545de99822bd8a78a6b
[18/18] powerpc/powermac: Move PHB discovery
(squashed into 2)
cheers
prev parent reply other threads:[~2021-02-10 14:28 UTC|newest]
Thread overview: 20+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-11-03 4:35 [PATCH 01/18] powerpc/pci: Add ppc_md.discover_phbs() Oliver O'Halloran
2020-11-03 4:35 ` [PATCH 02/18] powerpc/{powernv,pseries}: Move PHB discovery Oliver O'Halloran
2020-11-03 4:35 ` [PATCH 03/18] powerpc/maple: " Oliver O'Halloran
2020-11-03 4:35 ` [PATCH 04/18] powerpc/512x: " Oliver O'Halloran
2020-11-03 4:35 ` [PATCH 05/18] powerpc/52xx/efika: " Oliver O'Halloran
2020-11-03 4:35 ` [PATCH 06/18] powerpc/52xx/lite5200: " Oliver O'Halloran
2020-11-03 4:35 ` [PATCH 07/18] powerpc/52xx/media5200: " Oliver O'Halloran
2020-11-03 4:35 ` [PATCH 08/18] powerpc/52xx/mpc5200_simple: " Oliver O'Halloran
2020-11-03 4:35 ` [PATCH 09/18] powerpc/82xx/*: " Oliver O'Halloran
2020-11-03 4:35 ` [PATCH 10/18] powerpc/83xx: " Oliver O'Halloran
2020-11-03 4:35 ` [PATCH 11/18] powerpc/amigaone: " Oliver O'Halloran
2020-11-03 4:35 ` [PATCH 12/18] powerpc/chrp: " Oliver O'Halloran
2020-11-03 4:35 ` [PATCH 13/18] powerpc/embedded6xx/holly: " Oliver O'Halloran
2020-11-03 4:35 ` [PATCH 14/18] powerpc/embedded6xx/linkstation: " Oliver O'Halloran
2020-11-03 4:35 ` [PATCH 15/18] powerpc/embedded6xx/mpc7448: " Oliver O'Halloran
2020-11-03 4:35 ` [PATCH 16/18] powerpc/embedded6xx/mve5100: " Oliver O'Halloran
2020-11-03 4:35 ` [PATCH 17/18] powerpc/pasemi: " Oliver O'Halloran
2020-11-03 4:35 ` [PATCH 18/18] powerpc/powermac: " Oliver O'Halloran
2020-11-04 4:07 ` [PATCH 01/18] powerpc/pci: Add ppc_md.discover_phbs() kernel test robot
2021-02-10 12:57 ` Michael Ellerman [this message]
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