Re: [PATCH 07/19] mm/gup: introduce pin_user_pages*() and FOLL_PIN

Hi John, Thank you for the patch! Yet something to improve: [auto build test ERROR on rdma/for-next] [also build test ERROR on v5.4 next-20191122] [if your patch is applied to the wrong git tree, please drop us a note to help improve the system. BTW, we also suggest to use '--base' option to spec

[Bug 97055] Black screens on A10-8780P (Carrizo) + R7 M260/M265 (Topaz) Combo

https://bugs.freedesktop.org/show_bug.cgi?id=97055 --- Comment #28 from juliasamy --- I trust somebody learned and ready to take care of business pays heed to this page and deals with the bug. We also one of the best web development company in jeddah visit here for more details: https://www.adweb

Re: [PATCH v2] video: hyperv: hyperv_fb: Use physical memory for fb on HyperV Gen 1 VMs.

'--base' option to specify the base tree in git format-patch, please see https://stackoverflow.com/a/37406982] url: https://github.com/0day-ci/linux/commits/Wei-Hu/video-hyperv-hyperv_fb-Use-physical-memory-for-fb-on-HyperV-Gen-1-VMs/20191124-163533 base:b9d3d01405061bb42358fe53f824e8

RE: [PATCH] MAINTAINERS: Drop Rex Zhu for amdgpu powerplay

Reviewed-by: Evan Quan > -Original Message- > From: amd-gfx On Behalf Of Alex > Deucher > Sent: Saturday, November 23, 2019 3:19 AM > To: amd-...@lists.freedesktop.org; dri-devel@lists.freedesktop.org > Cc: Deucher, Alexander > Subject: [PATCH] MAINTAINERS: Drop Rex Zhu for amdgpu power

[PATCH 05/19] mm: fix get_user_pages_remote()'s handling of FOLL_LONGTERM

As it says in the updated comment in gup.c: current FOLL_LONGTERM behavior is incompatible with FAULT_FLAG_ALLOW_RETRY because of the FS DAX check requirement on vmas. However, the corresponding restriction in get_user_pages_remote() was slightly stricter than is actually required: it forbade all

[PATCH 15/19] media/v4l2-core: pin_user_pages (FOLL_PIN) and put_user_page() conversion

1. Change v4l2 from get_user_pages() to pin_user_pages(). 2. Because all FOLL_PIN-acquired pages must be released via put_user_page(), also convert the put_page() call over to put_user_pages_dirty_lock(). Acked-by: Hans Verkuil Cc: Ira Weiny Signed-off-by: John Hubbard --- drivers/media/v4l2-

[PATCH 14/19] media/v4l2-core: set pages dirty upon releasing DMA buffers

After DMA is complete, and the device and CPU caches are synchronized, it's still required to mark the CPU pages as dirty, if the data was coming from the device. However, this driver was just issuing a bare put_page() call, without any set_page_dirty*() call. Fix the problem, by calling set_page_

[PATCH 00/19] pin_user_pages(): reduced-risk series for Linux 5.5

Hi, Here is a set of well-reviewed (expect for one patch), lower-risk items that can go into Linux 5.5. The one patch that wasn't reviewed is the powerpc conversion, and it's still at this point a no-op, because tracking isn't yet activated. This is based on linux-next: b9d3d01405061bb42358fe53f

[PATCH 02/19] mm/gup: move try_get_compound_head() to top, fix minor issues

An upcoming patch uses try_get_compound_head() more widely, so move it to the top of gup.c. Also fix a tiny spelling error and a checkpatch.pl warning. Reviewed-by: Christoph Hellwig Reviewed-by: Jan Kara Reviewed-by: Ira Weiny Signed-off-by: John Hubbard --- mm/gup.c | 29 +++---

[PATCH 18/19] mm/gup_benchmark: use proper FOLL_WRITE flags instead of hard-coding "1"

Fix the gup benchmark flags to use the symbolic FOLL_WRITE, instead of a hard-coded "1" value. Also, clean up the filtering of gup flags a little, by just doing it once before issuing any of the get_user_pages*() calls. This makes it harder to overlook, instead of having little "gup_flags & 1" phr

[PATCH 06/19] vfio: fix FOLL_LONGTERM use, simplify get_user_pages_remote() call

Update VFIO to take advantage of the recently loosened restriction on FOLL_LONGTERM with get_user_pages_remote(). Also, now it is possible to fix a bug: the VFIO caller is logically a FOLL_LONGTERM user, but it wasn't setting FOLL_LONGTERM. Also, remove an unnessary pair of calls that were releasi

[PATCH 11/19] drm/via: set FOLL_PIN via pin_user_pages_fast()

Convert drm/via to use the new pin_user_pages_fast() call, which sets FOLL_PIN. Setting FOLL_PIN is now required for code that requires tracking of pinned pages, and therefore for any code that calls put_user_page(). In partial anticipation of this work, the drm/via driver was already calling put_

[PATCH 12/19] fs/io_uring: set FOLL_PIN via pin_user_pages()

Convert fs/io_uring to use the new pin_user_pages() call, which sets FOLL_PIN. Setting FOLL_PIN is now required for code that requires tracking of pinned pages, and therefore for any code that calls put_user_page(). In partial anticipation of this work, the io_uring code was already calling put_us

[PATCH 13/19] net/xdp: set FOLL_PIN via pin_user_pages()

Convert net/xdp to use the new pin_longterm_pages() call, which sets FOLL_PIN. Setting FOLL_PIN is now required for code that requires tracking of pinned pages. In partial anticipation of this work, the net/xdp code was already calling put_user_page() instead of put_page(). Therefore, in order to

[PATCH 07/19] mm/gup: introduce pin_user_pages*() and FOLL_PIN

Introduce pin_user_pages*() variations of get_user_pages*() calls, and also pin_longterm_pages*() variations. For now, these are placeholder calls, until the various call sites are converted to use the correct get_user_pages*() or pin_user_pages*() API. These variants will eventually all set FOLL

[PATCH 04/19] goldish_pipe: rename local pin_user_pages() routine

1. Avoid naming conflicts: rename local static function from "pin_user_pages()" to "goldfish_pin_pages()". An upcoming patch will introduce a global pin_user_pages() function. Reviewed-by: Jan Kara Reviewed-by: Jérôme Glisse Reviewed-by: Ira Weiny Signed-off-by: John Hubbard --- drivers/plat

[PATCH 09/19] IB/{core, hw, umem}: set FOLL_PIN via pin_user_pages*(), fix up ODP

Convert infiniband to use the new pin_user_pages*() calls. Also, revert earlier changes to Infiniband ODP that had it using put_user_page(). ODP is "Case 3" in Documentation/core-api/pin_user_pages.rst, which is to say, normal get_user_pages() and put_page() is the API to use there. The new pin_u

[PATCH 03/19] mm: Cleanup __put_devmap_managed_page() vs ->page_free()

From: Dan Williams After the removal of the device-public infrastructure there are only 2 ->page_free() call backs in the kernel. One of those is a device-private callback in the nouveau driver, the other is a generic wakeup needed in the DAX case. In the hopes that all ->page_free() callbacks ca

[PATCH 01/19] mm/gup: factor out duplicate code from four routines

There are four locations in gup.c that have a fair amount of code duplication. This means that changing one requires making the same changes in four places, not to mention reading the same code four times, and wondering if there are subtle differences. Factor out the common code into static functi

[PATCH 19/19] mm, tree-wide: rename put_user_page*() to unpin_user_page*()

In order to provide a clearer, more symmetric API for pinning and unpinning DMA pages. This way, pin_user_pages*() calls match up with unpin_user_pages*() calls, and the API is a lot closer to being self-explanatory. Reviewed-by: Jan Kara Signed-off-by: John Hubbard --- Documentation/core-api/p

[PATCH 16/19] vfio, mm: pin_user_pages (FOLL_PIN) and put_user_page() conversion

1. Change vfio from get_user_pages_remote(), to pin_user_pages_remote(). 2. Because all FOLL_PIN-acquired pages must be released via put_user_page(), also convert the put_page() call over to put_user_pages_dirty_lock(). Note that this effectively changes the code's behavior in vfio_iommu_type1.c:

[PATCH 10/19] mm/process_vm_access: set FOLL_PIN via pin_user_pages_remote()

Convert process_vm_access to use the new pin_user_pages_remote() call, which sets FOLL_PIN. Setting FOLL_PIN is now required for code that requires tracking of pinned pages. Also, release the pages via put_user_page*(). Also, rename "pages" to "pinned_pages", as this makes for easier reading of p

[PATCH 08/19] goldish_pipe: convert to pin_user_pages() and put_user_page()

1. Call the new global pin_user_pages_fast(), from pin_goldfish_pages(). 2. As required by pin_user_pages(), release these pages via put_user_page(). In this case, do so via put_user_pages_dirty_lock(). That has the side effect of calling set_page_dirty_lock(), instead of set_page_dirty(). This i

[PATCH 17/19] powerpc: book3s64: convert to pin_user_pages() and put_user_page()

1. Convert from get_user_pages() to pin_user_pages(). 2. As required by pin_user_pages(), release these pages via put_user_page(). In this case, do so via put_user_pages_dirty_lock(). That has the side effect of calling set_page_dirty_lock(), instead of set_page_dirty(). This is probably more acc

[Bug 205169] AMDGPU driver with Navi card hangs Xorg in fullscreen only.

https://bugzilla.kernel.org/show_bug.cgi?id=205169 --- Comment #25 from Shmerl (shtetl...@gmail.com) --- Also, even with 100 ms timeout, the flip hang still happens just very rarely and not in the usual scenarios for me. For example when playing The Witcher 3 (Wine+dxvk) and minimizing the game Wi

[Bug 205169] AMDGPU driver with Navi card hangs Xorg in fullscreen only.

https://bugzilla.kernel.org/show_bug.cgi?id=205169 --- Comment #24 from Shmerl (shtetl...@gmail.com) --- Just FYI, 5.4 is out, but the fix didn't land yet, so it needs to be still applied manually. -- You are receiving this mail because: You are watching the assignee of the bug.

Re: [kbuild-all] Re: [PATCH 15/15] dma-buf: Remove kernel map/unmap hooks

On 11/19/19 12:43 AM, Daniel Vetter wrote: On Mon, Nov 18, 2019 at 4:23 PM kbuild test robot wrote: Hi Daniel, I love your patch! Yet something to improve: [auto build test ERROR on drm-intel/for-linux-next] [also build test ERROR on v5.4-rc8 next-20191115] [if your patch is applied to the

Re: [PATCH v7 07/24] IB/umem: use get_user_pages_fast() to pin DMA pages

On 11/24/19 2:07 AM, Leon Romanovsky wrote: > On Thu, Nov 21, 2019 at 10:36:43AM -0400, Jason Gunthorpe wrote: >> On Thu, Nov 21, 2019 at 12:07:46AM -0800, Christoph Hellwig wrote: >>> On Wed, Nov 20, 2019 at 11:13:37PM -0800, John Hubbard wrote: And get rid of the mmap_sem calls, as part of t

[PATCH] drm/msm/adreno: fix zap vs no-zap handling

From: Rob Clark We can have two cases, when it comes to "zap" fw. Either the fw requires zap fw to take the GPU out of secure mode at boot, or it does not and we can write RBBM_SECVID_TRUST_CNTL directly. Previously we decided based on whether zap fw load succeeded, but this is not a great plan

Re: [RFC 06/13] drm/i915/svm: Page table mirroring support

On Sat, Nov 23, 2019 at 11:53:52PM +, Jason Gunthorpe wrote: On Fri, Nov 22, 2019 at 08:44:18PM -0800, Niranjan Vishwanathapura wrote: On Fri, Nov 22, 2019 at 11:33:12PM +, Jason Gunthorpe wrote: > On Fri, Nov 22, 2019 at 12:57:27PM -0800, Niranjana Vishwanathapura wrote: > > > +static i

Re: [PATCH v3 08/21] drm/bridge: Add the drm_for_each_bridge_in_chain() helper

Hi Boris, Thank you for the patch. On Wed, Oct 23, 2019 at 05:44:59PM +0200, Boris Brezillon wrote: > To iterate over all bridges attached to a specific encoder. > > Suggested-by: Laurent Pinchart > Signed-off-by: Boris Brezillon > --- > Changes in v3: > * None > > Changes in v2: > * New patch

Re: [PATCH v3 05/21] drm/bridge: Introduce drm_bridge_chain_get_next_bridge()

Hi Boris, On Sun, Nov 24, 2019 at 11:56:16AM +0100, Boris Brezillon wrote: > On Sun, 24 Nov 2019 12:33:35 +0200 Laurent Pinchart wrote: > > On Wed, Oct 23, 2019 at 05:44:56PM +0200, Boris Brezillon wrote: > > > And use it in drivers accessing the bridge->next field directly. > > > This is part of

Re: [PATCH v3 03/21] drm/exynos: Declare the DSI encoder as a bridge element

Hi Boris, On Sun, Nov 24, 2019 at 02:17:27PM +0100, Boris Brezillon wrote: > On Sun, 24 Nov 2019 12:24:33 +0200 Laurent Pinchart wrote: > > On Wed, Oct 23, 2019 at 05:44:54PM +0200, Boris Brezillon wrote: > > > Encoder drivers will progressively transition to the drm_bridge > > > interface in plac

Re: [PATCH v3 07/21] drm/bridge: Make the bridge chain a double-linked list

Hi Boris, Thank you for the patch. On Wed, Oct 23, 2019 at 05:44:58PM +0200, Boris Brezillon wrote: > So that each element in the chain can easily access its predecessor. > This will be needed to support bus format negotiation between elements > of the bridge chain. > > Signed-off-by: Boris Brez

Re: [PATCH v3 06/21] drm: Stop accessing encoder->bridge directly

On Sun, 24 Nov 2019 12:39:26 +0200 Laurent Pinchart wrote: > > @@ -1346,7 +1355,7 @@ void drm_atomic_helper_commit_modeset_enables(struct > > drm_device *dev, > > funcs->commit(encoder); > > } > > > > - drm_atomic_bridge_chain_enable(encoder->b

Re: [PATCH v3 03/21] drm/exynos: Declare the DSI encoder as a bridge element

On Sun, 24 Nov 2019 14:17:27 +0100 Boris Brezillon wrote: > > > @@ -1687,16 +1705,18 @@ static int exynos_dsi_bind(struct device *dev, > > > struct device *master, > > > drm_encoder_init(drm_dev, encoder, &exynos_dsi_encoder_funcs, > > >DRM_MODE_ENCODER_TMDS, NULL); > > >

Re: [PATCH v3 03/21] drm/exynos: Declare the DSI encoder as a bridge element

Hi Laurent, On Sun, 24 Nov 2019 12:24:33 +0200 Laurent Pinchart wrote: > Hi Boris, > > Thank you for the patch. > > On Wed, Oct 23, 2019 at 05:44:54PM +0200, Boris Brezillon wrote: > > Encoder drivers will progressively transition to the drm_bridge > > interface in place of the drm_encoder one

Re: [PATCH V5 1/3] drm/panel: simple: Add Logic PD Type 28 display support

On Mon, Nov 11, 2019 at 7:19 AM Adam Ford wrote: > > On Fri, Nov 1, 2019 at 2:57 AM Laurent Pinchart > wrote: > > > > On Wed, Oct 30, 2019 at 09:44:20AM -0500, Adam Ford wrote: > > > On Wed, Oct 16, 2019 at 8:52 AM Adam Ford wrote: > > > > > > > > Previously, there was an omap panel-dpi driver t

Re: [PATCH v3 05/21] drm/bridge: Introduce drm_bridge_chain_get_next_bridge()

On Sun, 24 Nov 2019 12:33:35 +0200 Laurent Pinchart wrote: > Hi Boris, > > Thank you for the patch. > > On Wed, Oct 23, 2019 at 05:44:56PM +0200, Boris Brezillon wrote: > > And use it in drivers accessing the bridge->next field directly. > > This is part of our attempt to make the bridge chain

Re: [PATCH v3 01/21] drm/vc4: Declare the DSI encoder as a bridge element

On Sun, 24 Nov 2019 12:01:30 +0200 Laurent Pinchart wrote: > Hi Boris, > > Thank you for the patch. > > On Wed, Oct 23, 2019 at 05:44:52PM +0200, Boris Brezillon wrote: > > Encoder drivers will progressively transition to the drm_bridge > > interface in place of the drm_encoder one. > > > > Le

Re: [PATCH v3 06/21] drm: Stop accessing encoder->bridge directly

Hi Boris, Thank you for the patch. On Wed, Oct 23, 2019 at 05:44:57PM +0200, Boris Brezillon wrote: > We are about to replace the single-linked bridge list by a double-linked > one based on list.h, leading to the suppression of the encoder->bridge > field. But before we can do that we must provid

Re: [PATCH v3 05/21] drm/bridge: Introduce drm_bridge_chain_get_next_bridge()

Hi Boris, Thank you for the patch. On Wed, Oct 23, 2019 at 05:44:56PM +0200, Boris Brezillon wrote: > And use it in drivers accessing the bridge->next field directly. > This is part of our attempt to make the bridge chain a double-linked list > based on the generic list helpers. > > Signed-off-b

Re: [PATCH v3 04/21] drm/bridge: Rename bridge helpers targeting a bridge chain

Hi Boris, Thank you for the patch. On Wed, Oct 23, 2019 at 05:44:55PM +0200, Boris Brezillon wrote: > Change the prefix of bridge helpers targeting a bridge chain from > drm_bridge_ to drm_bridge_chain_ to better reflect the fact that > the operation will happen on all elements of chain, starting

Re: [PATCH v3 03/21] drm/exynos: Declare the DSI encoder as a bridge element

Hi Boris, Thank you for the patch. On Wed, Oct 23, 2019 at 05:44:54PM +0200, Boris Brezillon wrote: > Encoder drivers will progressively transition to the drm_bridge > interface in place of the drm_encoder one. > > Converting the Exynos DSI encoder driver to this approach allows us to > use the

Re: [PATCH v7 07/24] IB/umem: use get_user_pages_fast() to pin DMA pages

On Thu, Nov 21, 2019 at 10:36:43AM -0400, Jason Gunthorpe wrote: > On Thu, Nov 21, 2019 at 12:07:46AM -0800, Christoph Hellwig wrote: > > On Wed, Nov 20, 2019 at 11:13:37PM -0800, John Hubbard wrote: > > > And get rid of the mmap_sem calls, as part of that. Note > > > that get_user_pages_fast() wil

Re: [PATCH v3 01/21] drm/vc4: Declare the DSI encoder as a bridge element

Hi Boris, Thank you for the patch. On Wed, Oct 23, 2019 at 05:44:52PM +0200, Boris Brezillon wrote: > Encoder drivers will progressively transition to the drm_bridge > interface in place of the drm_encoder one. > > Let's start with the VC4 driver, and use the ->pre_{enable,disable}() > hooks to

Re: [PATCH v3 00/21] drm: Add support for bus-format negotiation

On Sun, 2019-11-24 at 08:32 +0100, Boris Brezillon wrote: > On Sun, 24 Nov 2019 09:46:41 +0900 > Ezequiel Garcia wrote: > > > Hi Boris, Neil, > > > > On Wed, 2019-10-23 at 17:44 +0200, Boris Brezillon wrote: > > > This patch series aims at adding support for runtime bus-format > > > negotiation