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From: John Hubbard <jhubbard@nvidia.com>
To: Andrew Morton <akpm@linux-foundation.org>
Cc: Souptick Joarder <jrdr.linux@gmail.com>,
	Matthew Wilcox <willy@infradead.org>,
	Jani Nikula <jani.nikula@linux.intel.com>,
	"Joonas Lahtinen" <joonas.lahtinen@linux.intel.com>,
	Rodrigo Vivi <rodrigo.vivi@intel.com>,
	David Airlie <airlied@linux.ie>, Daniel Vetter <daniel@ffwll.ch>,
	Chris Wilson <chris@chris-wilson.co.uk>,
	Tvrtko Ursulin <tvrtko.ursulin@intel.com>,
	Matthew Auld <matthew.auld@intel.com>,
	<intel-gfx@lists.freedesktop.org>,
	<dri-devel@lists.freedesktop.org>,
	LKML <linux-kernel@vger.kernel.org>, <linux-mm@kvack.org>,
	John Hubbard <jhubbard@nvidia.com>
Subject: [PATCH 0/4] mm/gup, drm/i915: refactor gup_fast, convert to pin_user_pages()
Date: Mon, 18 May 2020 17:21:20 -0700	[thread overview]
Message-ID: <20200519002124.2025955-1-jhubbard@nvidia.com> (raw)

This needs to go through Andrew's -mm tree, due to adding a new gup.c
routine. However, I would really love to have some testing from the
drm/i915 folks, because I haven't been able to run-time test that part
of it.

Otherwise, though, the series has passed my basic run time testing:
some LTP tests, some xfs and etx4 non-destructive xfstests, and an
assortment of other smaller ones: vm selftests, io_uring_register, a
few more. But that's only on one particular machine. Also, cross-compile
tests for half a dozen arches all pass.

Details:

In order to convert the drm/i915 driver from get_user_pages() to
pin_user_pages(), a FOLL_PIN equivalent of __get_user_pages_fast() was
required. That led to refactoring __get_user_pages_fast(), with the
following goals:

1) As above: provide a pin_user_pages*() routine for drm/i915 to call,
   in place of __get_user_pages_fast(),

2) Get rid of the gup.c duplicate code for walking page tables with
   interrupts disabled. This duplicate code is a minor maintenance
   problem anyway.

3) Make it easy for an upcoming patch from Souptick, which aims to
   convert __get_user_pages_fast() to use a gup_flags argument, instead
   of a bool writeable arg.  Also, if this series looks good, we can
   ask Souptick to change the name as well, to whatever the consensus
   is. My initial recommendation is: get_user_pages_fast_only(), to
   match the new pin_user_pages_only().

John Hubbard (4):
  mm/gup: move __get_user_pages_fast() down a few lines in gup.c
  mm/gup: refactor and de-duplicate gup_fast() code
  mm/gup: introduce pin_user_pages_fast_only()
  drm/i915: convert get_user_pages() --> pin_user_pages()

 drivers/gpu/drm/i915/gem/i915_gem_userptr.c |  22 +--
 include/linux/mm.h                          |   3 +
 mm/gup.c                                    | 150 ++++++++++++--------
 3 files changed, 107 insertions(+), 68 deletions(-)


base-commit: 642b151f45dd54809ea00ecd3976a56c1ec9b53d
-- 
2.26.2


WARNING: multiple messages have this Message-ID
From: John Hubbard <jhubbard@nvidia.com>
To: Andrew Morton <akpm@linux-foundation.org>
Cc: Matthew Wilcox <willy@infradead.org>,
	dri-devel@lists.freedesktop.org,
	Tvrtko Ursulin <tvrtko.ursulin@intel.com>,
	David Airlie <airlied@linux.ie>,
	John Hubbard <jhubbard@nvidia.com>,
	intel-gfx@lists.freedesktop.org,
	LKML <linux-kernel@vger.kernel.org>,
	Chris Wilson <chris@chris-wilson.co.uk>,
	linux-mm@kvack.org, Souptick Joarder <jrdr.linux@gmail.com>,
	Rodrigo Vivi <rodrigo.vivi@intel.com>,
	Matthew Auld <matthew.auld@intel.com>
Subject: [PATCH 0/4] mm/gup, drm/i915: refactor gup_fast, convert to pin_user_pages()
Date: Mon, 18 May 2020 17:21:20 -0700	[thread overview]
Message-ID: <20200519002124.2025955-1-jhubbard@nvidia.com> (raw)

This needs to go through Andrew's -mm tree, due to adding a new gup.c
routine. However, I would really love to have some testing from the
drm/i915 folks, because I haven't been able to run-time test that part
of it.

Otherwise, though, the series has passed my basic run time testing:
some LTP tests, some xfs and etx4 non-destructive xfstests, and an
assortment of other smaller ones: vm selftests, io_uring_register, a
few more. But that's only on one particular machine. Also, cross-compile
tests for half a dozen arches all pass.

Details:

In order to convert the drm/i915 driver from get_user_pages() to
pin_user_pages(), a FOLL_PIN equivalent of __get_user_pages_fast() was
required. That led to refactoring __get_user_pages_fast(), with the
following goals:

1) As above: provide a pin_user_pages*() routine for drm/i915 to call,
   in place of __get_user_pages_fast(),

2) Get rid of the gup.c duplicate code for walking page tables with
   interrupts disabled. This duplicate code is a minor maintenance
   problem anyway.

3) Make it easy for an upcoming patch from Souptick, which aims to
   convert __get_user_pages_fast() to use a gup_flags argument, instead
   of a bool writeable arg.  Also, if this series looks good, we can
   ask Souptick to change the name as well, to whatever the consensus
   is. My initial recommendation is: get_user_pages_fast_only(), to
   match the new pin_user_pages_only().

John Hubbard (4):
  mm/gup: move __get_user_pages_fast() down a few lines in gup.c
  mm/gup: refactor and de-duplicate gup_fast() code
  mm/gup: introduce pin_user_pages_fast_only()
  drm/i915: convert get_user_pages() --> pin_user_pages()

 drivers/gpu/drm/i915/gem/i915_gem_userptr.c |  22 +--
 include/linux/mm.h                          |   3 +
 mm/gup.c                                    | 150 ++++++++++++--------
 3 files changed, 107 insertions(+), 68 deletions(-)


base-commit: 642b151f45dd54809ea00ecd3976a56c1ec9b53d
-- 
2.26.2

_______________________________________________
dri-devel mailing list
dri-devel@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/dri-devel

WARNING: multiple messages have this Message-ID
From: John Hubbard <jhubbard@nvidia.com>
To: Andrew Morton <akpm@linux-foundation.org>
Cc: Matthew Wilcox <willy@infradead.org>,
	dri-devel@lists.freedesktop.org, David Airlie <airlied@linux.ie>,
	John Hubbard <jhubbard@nvidia.com>,
	intel-gfx@lists.freedesktop.org,
	LKML <linux-kernel@vger.kernel.org>,
	Chris Wilson <chris@chris-wilson.co.uk>,
	linux-mm@kvack.org, Souptick Joarder <jrdr.linux@gmail.com>,
	Matthew Auld <matthew.auld@intel.com>
Subject: [Intel-gfx] [PATCH 0/4] mm/gup, drm/i915: refactor gup_fast, convert to pin_user_pages()
Date: Mon, 18 May 2020 17:21:20 -0700	[thread overview]
Message-ID: <20200519002124.2025955-1-jhubbard@nvidia.com> (raw)

This needs to go through Andrew's -mm tree, due to adding a new gup.c
routine. However, I would really love to have some testing from the
drm/i915 folks, because I haven't been able to run-time test that part
of it.

Otherwise, though, the series has passed my basic run time testing:
some LTP tests, some xfs and etx4 non-destructive xfstests, and an
assortment of other smaller ones: vm selftests, io_uring_register, a
few more. But that's only on one particular machine. Also, cross-compile
tests for half a dozen arches all pass.

Details:

In order to convert the drm/i915 driver from get_user_pages() to
pin_user_pages(), a FOLL_PIN equivalent of __get_user_pages_fast() was
required. That led to refactoring __get_user_pages_fast(), with the
following goals:

1) As above: provide a pin_user_pages*() routine for drm/i915 to call,
   in place of __get_user_pages_fast(),

2) Get rid of the gup.c duplicate code for walking page tables with
   interrupts disabled. This duplicate code is a minor maintenance
   problem anyway.

3) Make it easy for an upcoming patch from Souptick, which aims to
   convert __get_user_pages_fast() to use a gup_flags argument, instead
   of a bool writeable arg.  Also, if this series looks good, we can
   ask Souptick to change the name as well, to whatever the consensus
   is. My initial recommendation is: get_user_pages_fast_only(), to
   match the new pin_user_pages_only().

John Hubbard (4):
  mm/gup: move __get_user_pages_fast() down a few lines in gup.c
  mm/gup: refactor and de-duplicate gup_fast() code
  mm/gup: introduce pin_user_pages_fast_only()
  drm/i915: convert get_user_pages() --> pin_user_pages()

 drivers/gpu/drm/i915/gem/i915_gem_userptr.c |  22 +--
 include/linux/mm.h                          |   3 +
 mm/gup.c                                    | 150 ++++++++++++--------
 3 files changed, 107 insertions(+), 68 deletions(-)


base-commit: 642b151f45dd54809ea00ecd3976a56c1ec9b53d
-- 
2.26.2

_______________________________________________
Intel-gfx mailing list
Intel-gfx@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/intel-gfx

             reply	other threads:[~2020-05-19  0:21 UTC|newest]

Thread overview: 35+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-05-19  0:21 John Hubbard [this message]
2020-05-19  0:21 ` [Intel-gfx] " John Hubbard
2020-05-19  0:21 ` John Hubbard
2020-05-19  0:21 ` [PATCH 1/4] mm/gup: move __get_user_pages_fast() down a few lines in gup.c John Hubbard
2020-05-19  0:21   ` [Intel-gfx] " John Hubbard
2020-05-19  0:21   ` John Hubbard
2020-05-19  0:21 ` [PATCH 2/4] mm/gup: refactor and de-duplicate gup_fast() code John Hubbard
2020-05-19  0:21   ` [Intel-gfx] " John Hubbard
2020-05-19  0:21   ` John Hubbard
2020-05-19  0:21 ` [PATCH 3/4] mm/gup: introduce pin_user_pages_fast_only() John Hubbard
2020-05-19  0:21   ` [Intel-gfx] " John Hubbard
2020-05-19  0:21   ` John Hubbard
2020-05-19  0:21 ` [PATCH 4/4] drm/i915: convert get_user_pages() --> pin_user_pages() John Hubbard
2020-05-19  0:21   ` [Intel-gfx] " John Hubbard
2020-05-19  0:21   ` John Hubbard
2020-05-19  0:50 ` [Intel-gfx] ✗ Fi.CI.CHECKPATCH: warning for mm/gup, drm/i915: refactor gup_fast, convert to pin_user_pages() Patchwork
2020-05-19  0:52 ` [Intel-gfx] ✗ Fi.CI.SPARSE: " Patchwork
2020-05-19  1:20 ` [Intel-gfx] ✓ Fi.CI.BAT: success " Patchwork
2020-05-19  3:52 ` [Intel-gfx] ✗ Fi.CI.IGT: failure " Patchwork
2020-05-21 18:57 ` [PATCH 0/4] " Chris Wilson
2020-05-21 18:57   ` [Intel-gfx] " Chris Wilson
2020-05-21 18:57   ` Chris Wilson
2020-05-21 19:11   ` John Hubbard
2020-05-21 19:11     ` [Intel-gfx] " John Hubbard
2020-05-21 19:11     ` John Hubbard
2020-05-21 20:40     ` Solved: " John Hubbard
2020-05-21 20:40       ` [Intel-gfx] " John Hubbard
2020-05-21 20:40       ` John Hubbard
2020-05-22 11:40 ` Souptick Joarder
2020-05-22 11:40   ` [Intel-gfx] " Souptick Joarder
2020-05-22 11:40   ` Souptick Joarder
2020-05-22 11:40   ` Souptick Joarder
2020-05-22 22:22   ` John Hubbard
2020-05-22 22:22     ` [Intel-gfx] " John Hubbard
2020-05-22 22:22     ` John Hubbard

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