From: Nicholas Piggin <npiggin@gmail.com>
To: Michael Ellerman <mpe@ellerman.id.au>
Cc: Sukadev Bhattiprolu <sukadev@linux.vnet.ibm.com>,
Benjamin Herrenschmidt <benh@kernel.crashing.org>,
mikey@neuling.org, stewart@linux.vnet.ibm.com,
apopple@au1.ibm.com, hbabu@us.ibm.com, oohall@gmail.com,
linuxppc-dev@ozlabs.org, linux-kernel@vger.kernel.org
Subject: Re: [PATCH v6 01/17] powerpc/vas: Define macros, register fields and structures
Date: Mon, 14 Aug 2017 16:05:22 +1000 [thread overview]
Message-ID: <20170814160522.4f9b517a@roar.ozlabs.ibm.com> (raw)
In-Reply-To: <877ey6sp03.fsf@concordia.ellerman.id.au>
On Mon, 14 Aug 2017 15:21:48 +1000
Michael Ellerman <mpe@ellerman.id.au> wrote:
> Sukadev Bhattiprolu <sukadev@linux.vnet.ibm.com> writes:
> > arch/powerpc/include/asm/vas.h | 35 ++++
> > arch/powerpc/include/uapi/asm/vas.h | 25 +++
>
> I thought we weren't exposing VAS to userspace yet?
>
> If we are then we need to get things straight WRT copy/paste abort.
No we should not be. This might be just a leftover hunk that should
be moved to a future series.
At the moment (as far as I understand) it should be limited to
preempt-disabled, process context, kernel users which avoids any
concern for switch_to.
Thanks,
Nick
next prev parent reply other threads:[~2017-08-14 6:05 UTC|newest]
Thread overview: 34+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-08-08 23:06 [PATCH v6 00/17] powerpc/vas: Enable VAS Sukadev Bhattiprolu
2017-08-08 23:06 ` [PATCH v6 01/17] powerpc/vas: Define macros, register fields and structures Sukadev Bhattiprolu
2017-08-14 5:21 ` Michael Ellerman
2017-08-14 6:05 ` Nicholas Piggin [this message]
2017-08-14 11:00 ` Michael Ellerman
2017-08-14 19:14 ` Sukadev Bhattiprolu
2017-08-16 12:07 ` Michael Ellerman
2017-08-16 23:07 ` Sukadev Bhattiprolu
2017-08-08 23:06 ` [PATCH v6 02/17] powerpc/vas: Move GET_FIELD/SET_FIELD to vas.h Sukadev Bhattiprolu
2017-08-14 7:26 ` Michael Ellerman
2017-08-08 23:06 ` [PATCH v6 03/17] powerpc/vas: Define vas_init() and vas_exit() Sukadev Bhattiprolu
2017-08-08 23:06 ` [PATCH v6 04/17] powerpc/vas: Define helpers to access MMIO regions Sukadev Bhattiprolu
2017-08-08 23:06 ` [PATCH v6 05/17] powerpc/vas: Define helpers to init window context Sukadev Bhattiprolu
2017-08-08 23:06 ` [PATCH v6 06/17] powerpc/vas: Define helpers to alloc/free windows Sukadev Bhattiprolu
2017-08-08 23:06 ` [PATCH v6 07/17] powerpc/vas: Define vas_win_paste_addr() Sukadev Bhattiprolu
2017-08-08 23:06 ` [PATCH v6 08/17] powerpc/vas: Define vas_win_id() Sukadev Bhattiprolu
2017-08-08 23:06 ` [PATCH v6 09/17] powerpc/vas: Define vas_rx_win_open() interface Sukadev Bhattiprolu
2017-08-08 23:06 ` [PATCH v6 10/17] " Sukadev Bhattiprolu
2017-08-08 23:06 ` [PATCH v6 11/17] powerpc/vas: Define vas_win_close() interface Sukadev Bhattiprolu
2017-08-08 23:06 ` [PATCH v6 12/17] powerpc/vas: Define vas_tx_win_open() Sukadev Bhattiprolu
2017-08-08 23:06 ` [PATCH v6 13/17] powerpc/vas: Define copy/paste interfaces Sukadev Bhattiprolu
2017-08-08 23:06 ` [PATCH v6 14/17] powerpc: Add support for setting SPRN_TIDR Sukadev Bhattiprolu
2017-08-14 7:02 ` Michael Neuling
2017-08-14 13:30 ` Benjamin Herrenschmidt
2017-08-14 19:27 ` Sukadev Bhattiprolu
2017-08-14 11:16 ` Michael Ellerman
2017-08-14 20:03 ` Sukadev Bhattiprolu
2017-08-14 22:25 ` Benjamin Herrenschmidt
2017-08-14 22:23 ` Benjamin Herrenschmidt
2017-08-08 23:07 ` [PATCH v6 15/17] powerpc/vas: Define window open ioctls API Sukadev Bhattiprolu
2017-08-08 23:07 ` [PATCH v6 16/17] powerpc/vas: Implement a simple FTW driver Sukadev Bhattiprolu
2017-08-14 6:53 ` Michael Ellerman
2017-08-08 23:07 ` [PATCH v6 17/17] powerpc/vas: Document FTW API/usage Sukadev Bhattiprolu
2017-08-14 10:43 ` Michael Neuling
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