The inlining logic in clang-13 is rewritten to often not inline some
functions that were inlined by all earlier compilers.
In case of the memblock interfaces, this exposed a harmless bug of a
missing __init annotation:
WARNING: modpost: vmlinux.o(.text+0x507c0a): Section mismatch in reference from the function memblock_bottom_up() to the variable .meminit.data:memblock
The function memblock_bottom_up() references
the variable __meminitdata memblock.
This is often because memblock_bottom_up lacks a __meminitdata
annotation or the annotation of memblock is wrong.
Interestingly, these annotations were present originally, but got removed
with the explanation that the __init annotation prevents the function from
getting inlined. I checked this again and found that while this is the
case with clang, gcc (version 7 through 10, did not test others) does
inline the functions regardless.
As the previous change was apparently intended to help the clang builds,
reverting it to help the newer clang versions seems appropriate as well.
gcc builds don't seem to care either way.
Link: https://lkml.kernel.org/r/20210225133808.2188581-1-arnd@kernel.org
Fixes: 5bdba520c1 ("mm: memblock: drop __init from memblock functions to make it inline")
Reference: 2cfb3665e8 ("include/linux/memblock.h: add __init to memblock_set_bottom_up()")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Reviewed-by: David Hildenbrand <david@redhat.com>
Reviewed-by: Mike Rapoport <rppt@linux.ibm.com>
Cc: Nathan Chancellor <nathan@kernel.org>
Cc: Nick Desaulniers <ndesaulniers@google.com>
Cc: Faiyaz Mohammed <faiyazm@codeaurora.org>
Cc: Baoquan He <bhe@redhat.com>
Cc: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
Cc: Aslan Bakirov <aslan@fb.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
core:
- Clear holes when converting compat ioctl's between 32-bits and 64-bits.
docs:
- Use gitlab for drm bugzilla now.
ttm:
- Fix ttm page pool accounting.
fbdev:
- Fix oops in drm_fbdev_cleanup()
shmem:
- Assorted fixes for shmem helpers.
qxl:
- unpin qxl bos created as pinned when freeing them,
and make ttm only warn once on this behavior.
- Zero head.surface_id correctly in qxl.
atyfb:
- Use LCD management for atyfb on PPC_MAC.
meson:
- Shutdown kms poll helper in meson correctly.
nouveau:
- fix regression in bo syncing
i915:
- Wedge the GPU if command parser setup fails
amdgpu:
- Fix aux backlight control
- Add a backlight override parameter
- Various display fixes
- PCIe DPM fix for vega
- Polaris watermark fixes
- Additional S0ix fix
radeon:
- Fix GEM regression
- Fix AGP dependency handling
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Merge tag 'drm-fixes-2021-03-12-1' of git://anongit.freedesktop.org/drm/drm
Pull drm fixes from Dave Airlie:
"Regular fixes for rc3. The i915 pull was based on the rc1 tag so I
just cherry-picked the single fix from there to avoid it. The misc and
amd trees seem to be on okay bases.
It's a bunch of fixes across the tree, amdgpu has most of them a few
ttm fixes around qxl, and nouveau.
core:
- Clear holes when converting compat ioctl's between 32-bits and
64-bits.
docs:
- Use gitlab for drm bugzilla now.
ttm:
- Fix ttm page pool accounting.
fbdev:
- Fix oops in drm_fbdev_cleanup()
shmem:
- Assorted fixes for shmem helpers.
qxl:
- unpin qxl bos created as pinned when freeing them, and make ttm
only warn once on this behavior.
- Zero head.surface_id correctly in qxl.
atyfb:
- Use LCD management for atyfb on PPC_MAC.
meson:
- Shutdown kms poll helper in meson correctly.
nouveau:
- fix regression in bo syncing
i915:
- Wedge the GPU if command parser setup fails
amdgpu:
- Fix aux backlight control
- Add a backlight override parameter
- Various display fixes
- PCIe DPM fix for vega
- Polaris watermark fixes
- Additional S0ix fix
radeon:
- Fix GEM regression
- Fix AGP dependency handling"
* tag 'drm-fixes-2021-03-12-1' of git://anongit.freedesktop.org/drm/drm: (33 commits)
drm/nouveau: fix dma syncing for loops (v2)
drm/i915: Wedge the GPU if command parser setup fails
drm/compat: Clear bounce structures
drm/shmem-helpers: vunmap: Don't put pages for dma-buf
drm: meson_drv add shutdown function
drm/shmem-helper: Don't remove the offset in vm_area_struct pgoff
drm/shmem-helper: Check for purged buffers in fault handler
qxl: Fix uninitialised struct field head.surface_id
drm/ttm: Fix TTM page pool accounting
drm/ttm: soften TTM warnings
drm: Use USB controller's DMA mask when importing dmabufs
MAINTAINERS: update drm bug reporting URL
fbdev: atyfb: use LCD management functions for PPC_PMAC also
fbdev: atyfb: always declare aty_{ld,st}_lcd()
drm/qxl: fix lockdep issue in qxl_alloc_release_reserved
drm/qxl: unpin release objects
drm/fb-helper: only unmap if buffer not null
drm/amdgpu: fix S0ix handling when the CONFIG_AMD_PMC=m
drm/radeon: fix AGP dependency
drm/radeon: also init GEM funcs in radeon_gem_prime_import_sg_table
...
The index variable should only be increased in one place.
Noticed this while trying to track down another oops.
v2: use while loop.
Fixes: f295c8cfec ("drm/nouveau: fix dma syncing warning with debugging on.")
Signed-off-by: Dave Airlie <airlied@redhat.com>
Reviewed-by: Michael J. Ruhl <michael.j.ruhl@intel.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20210311043527.5376-1-airlied@gmail.com
Commit 311a50e76a ("drm/i915: Add support for mandatory cmdparsing")
introduced mandatory command parsing but setup failures were not
translated into wedging the GPU which was probably the intent.
Possible errors come in two categories. Either the sanity check on
internal tables has failed, which should be caught in CI unless an
affected platform would be missed in testing; or memory allocation failure
happened during driver load, which should be extremely unlikely but for
correctness should still be handled.
v2:
* Tidy coding style. (Chris)
[airlied: cherry-picked to avoid rc1 base]
Signed-off-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Fixes: 311a50e76a ("drm/i915: Add support for mandatory cmdparsing")
Cc: Jon Bloomfield <jon.bloomfield@intel.com>
Cc: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Cc: Chris Wilson <chris.p.wilson@intel.com>
Reviewed-by: Chris Wilson <chris.p.wilson@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20210302114213.1102223-1-tvrtko.ursulin@linux.intel.com
(cherry picked from commit 5a1a659762d35a6dc51047c9127c011303c77b7f)
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
- Fix oops in drm_fbdev_cleanup()
- unpin qxl bos created as pinned when freeing them,
and make ttm only warn once on this behavior.
- Use LCD management for atyfb on PPC_MAC.
- Use gitlab for drm bugzilla now.
- Fix ttm page pool accounting.
- Zero head.surface_id correctly in qxl.
- Assorted fixes for shmem helpers.
- Shutdown kms poll helper in meson correctly.
- Clear holes when converting compat ioctl's between 32-bits and 64-bits.
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Merge tag 'drm-misc-fixes-2021-03-11' of git://anongit.freedesktop.org/drm/drm-misc into drm-fixes
drm-misc-fixes for rc3, rebased on rc2:
- Fix oops in drm_fbdev_cleanup()
- unpin qxl bos created as pinned when freeing them,
and make ttm only warn once on this behavior.
- Use LCD management for atyfb on PPC_MAC.
- Use gitlab for drm bugzilla now.
- Fix ttm page pool accounting.
- Zero head.surface_id correctly in qxl.
- Assorted fixes for shmem helpers.
- Shutdown kms poll helper in meson correctly.
- Clear holes when converting compat ioctl's between 32-bits and 64-bits.
Signed-off-by: Dave Airlie <airlied@redhat.com>
From: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/4606f08e-d0e8-c543-5e96-cee2fd728a41@linux.intel.com
The histogram mode is set using 'rkisp1_params_set_bits'.
Only the bits of the mode should be the value argument for
that function. Otherwise bits outside the mode mask are
turned on which is not what was intended.
Fixes: bae1155cf5 ("media: staging: rkisp1: add output device for parameters")
Signed-off-by: Dafna Hirschfeld <dafna.hirschfeld@collabora.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
RZ/G2L SoC has no UIF. This patch fixes null pointer access, when UIF
module is not used.
Fixes: 5e824f989e6e8("media: v4l: vsp1: Integrate DISCOM in display pipeline")
Signed-off-by: Biju Das <biju.das.jz@bp.renesas.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
RZ/G2L SoC has only BRS. This patch fixes null pointer access,when only
BRS is enabled.
Fixes: cbb7fa49c7466("media: v4l: vsp1: Rename BRU to BRx")
Signed-off-by: Biju Das <biju.das.jz@bp.renesas.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
usbtv doesn't support power management, so on system suspend the
.disconnect callback of the driver is called. The teardown sequence
includes a call to snd_card_free. Its implementation waits until the
refcount of the sound card device drops to zero, however, if its file is
open, snd_card_file_add takes a reference, which can't be dropped during
the suspend, because the userspace processes are already frozen at this
point. snd_card_free waits for completion forever, leading to a hang on
suspend.
This commit fixes this deadlock condition by replacing snd_card_free
with snd_card_free_when_closed, that doesn't wait until all references
are released, allowing suspend to progress.
Fixes: 63ddf68de5 ("[media] usbtv: add audio support")
Signed-off-by: Maxim Mikityanskiy <maxtram95@gmail.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
The rc-cec keymap is unusual in that it can't be built as a module,
instead it is registered directly in rc-main.c if CONFIG_MEDIA_CEC_RC
is set. This is because it can be called from drm_dp_cec_set_edid() via
cec_register_adapter() in an asynchronous context, and it is not
allowed to use request_module() to load rc-cec.ko in that case. Trying to
do so results in a 'WARN_ON_ONCE(wait && current_is_async())'.
Since this keymap is only used if CONFIG_MEDIA_CEC_RC is set, we
just compile this keymap into the rc-core module and never as a
separate module.
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Fixes: 2c6d1fffa1 (drm: add support for DisplayPort CEC-Tunneling-over-AUX)
Reported-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Sean Young <sean@mess.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
dma-buf importing was reworked in commit 7d2cd72a9a
("drm/shmem-helpers: Simplify dma-buf importing"). Before that commit
drm_gem_shmem_prime_import_sg_table() did set ->pages_use_count=1 and
drm_gem_shmem_vunmap_locked() could call drm_gem_shmem_put_pages()
unconditionally. Now without the use count set, put pages is called also
on dma-bufs. Fix this by only putting pages if it's not imported.
Signed-off-by: Noralf Trønnes <noralf@tronnes.org>
Fixes: 7d2cd72a9a ("drm/shmem-helpers: Simplify dma-buf importing")
Cc: Daniel Vetter <daniel.vetter@ffwll.ch>
Cc: Thomas Zimmermann <tzimmermann@suse.de>
Acked-by: Thomas Zimmermann <tzimmermann@suse.de>
Tested-by: Thomas Zimmermann <tzimmermann@suse.de>
Link: https://patchwork.freedesktop.org/patch/msgid/20210219122203.51130-1-noralf@tronnes.org
(cherry picked from commit cdea72518a)
Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Signed-off-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
When mmapping the shmem, it would previously adjust the pgoff in the
vm_area_struct to remove the fake offset that is added to be able to
identify the buffer. This patch removes the adjustment and makes the
fault handler use the vm_fault address to calculate the page offset
instead. Although using this address is apparently discouraged, several
DRM drivers seem to be doing it anyway.
The problem with removing the pgoff is that it prevents
drm_vma_node_unmap from working because that searches the mapping tree
by address. That doesn't work because all of the mappings are at offset
0. drm_vma_node_unmap is being used by the shmem helpers when purging
the buffer.
This fixes a bug in Panfrost which is using drm_gem_shmem_purge. Without
this the mapping for the purged buffer can still be accessed which might
mean it would access random pages from other buffers
v2: Don't check whether the unsigned page_offset is less than 0.
Cc: stable@vger.kernel.org
Fixes: 17acb9f35e ("drm/shmem: Add madvise state and purge helpers")
Signed-off-by: Neil Roberts <nroberts@igalia.com>
Reviewed-by: Steven Price <steven.price@arm.com>
Signed-off-by: Steven Price <steven.price@arm.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20210223155125.199577-3-nroberts@igalia.com
Signed-off-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
When a buffer is madvised as not needed and then purged, any attempts to
access the buffer from user-space should cause a bus fault. This patch
adds a check for that.
Cc: stable@vger.kernel.org
Fixes: 17acb9f35e ("drm/shmem: Add madvise state and purge helpers")
Signed-off-by: Neil Roberts <nroberts@igalia.com>
Reviewed-by: Steven Price <steven.price@arm.com>
Signed-off-by: Steven Price <steven.price@arm.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20210223155125.199577-2-nroberts@igalia.com
Signed-off-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
The surface_id struct field in head is not being initialized and
static analysis warns that this is being passed through to
dev->monitors_config->heads[i] on an assignment. Clear up this
warning by initializing it to zero.
Addresses-Coverity: ("Uninitialized scalar variable")
Fixes: a6d3c4d798 ("qxl: hook monitors_config updates into crtc, not encoder.")
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Link: http://patchwork.freedesktop.org/patch/msgid/20210304094928.2280722-1-colin.king@canonical.com
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Signed-off-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
QXL indeed unrefs pinned BOs and the warnings are spamming peoples log files.
Make sure we warn only once until the QXL driver is fixed.
Signed-off-by: Christian König <christian.koenig@amd.com>
References: https://lore.kernel.org/lkml/YD+eYcMMcdlXB8PY@alley/
Link: https://patchwork.freedesktop.org/patch/422834/
Reviewed-by: Daniel Vetter <daniel@ffwll.ch>
Signed-off-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
USB devices cannot perform DMA and hence have no dma_mask set in their
device structure. Therefore importing dmabuf into a USB-based driver
fails, which breaks joining and mirroring of display in X11.
For USB devices, pick the associated USB controller as attachment device.
This allows the DRM import helpers to perform the DMA setup. If the DMA
controller does not support DMA transfers, we're out of luck and cannot
import. Our current USB-based DRM drivers don't use DMA, so the actual
DMA device is not important.
Tested by joining/mirroring displays of udl and radeon under Gnome/X11.
v8:
* release dmadev if device initialization fails (Noralf)
* fix commit description (Noralf)
v7:
* fix use-before-init bug in gm12u320 (Dan)
v6:
* implement workaround in DRM drivers and hold reference to
DMA device while USB device is in use
* remove dev_is_usb() (Greg)
* collapse USB helper into usb_intf_get_dma_device() (Alan)
* integrate Daniel's TODO statement (Daniel)
* fix typos (Greg)
v5:
* provide a helper for USB interfaces (Alan)
* add FIXME item to documentation and TODO list (Daniel)
v4:
* implement workaround with USB helper functions (Greg)
* use struct usb_device->bus->sysdev as DMA device (Takashi)
v3:
* drop gem_create_object
* use DMA mask of USB controller, if any (Daniel, Christian, Noralf)
v2:
* move fix to importer side (Christian, Daniel)
* update SHMEM and CMA helpers for new PRIME callbacks
Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Fixes: 6eb0233ec2 ("usb: don't inherity DMA properties for USB devices")
Tested-by: Pavel Machek <pavel@ucw.cz>
Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Acked-by: Christian König <christian.koenig@amd.com>
Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Acked-by: Noralf Trønnes <noralf@tronnes.org>
Cc: Christoph Hellwig <hch@lst.de>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: <stable@vger.kernel.org> # v5.10+
Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Link: https://patchwork.freedesktop.org/patch/msgid/20210303133229.3288-1-tzimmermann@suse.de
Signed-off-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Include PPC_PMAC in the configs that use aty_ld_lcd() and
aty_st_lcd() implementations so that the PM code may work
correctly for PPC_PMAC.
Suggested-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Cc: Daniel Vetter <daniel.vetter@ffwll.ch>
Cc: Nick Desaulniers <ndesaulniers@google.com>
Cc: linux-fbdev@vger.kernel.org
Cc: dri-devel@lists.freedesktop.org
Cc: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Cc: Sam Ravnborg <sam@ravnborg.org>
Cc: David Airlie <airlied@linux.ie>
Cc: Jani Nikula <jani.nikula@linux.intel.com>
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20210226173008.18236-1-rdunlap@infradead.org
Signed-off-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
The previously added stubs for aty_{ld,}st_lcd() make it
so that these functions are used regardless of the config
options that were guarding them, so remove the #ifdef/#endif
lines and make their declarations always visible.
This fixes build warnings that were reported by clang:
drivers/video/fbdev/aty/atyfb_base.c:180:6: warning: no previous prototype for function 'aty_st_lcd' [-Wmissing-prototypes]
void aty_st_lcd(int index, u32 val, const struct atyfb_par *par)
^
drivers/video/fbdev/aty/atyfb_base.c:180:1: note: declare 'static' if the function is not intended to be used outside of this translation unit
void aty_st_lcd(int index, u32 val, const struct atyfb_par *par)
drivers/video/fbdev/aty/atyfb_base.c:183:5: warning: no previous prototype for function 'aty_ld_lcd' [-Wmissing-prototypes]
u32 aty_ld_lcd(int index, const struct atyfb_par *par)
^
drivers/video/fbdev/aty/atyfb_base.c:183:1: note: declare 'static' if the function is not intended to be used outside of this translation unit
u32 aty_ld_lcd(int index, const struct atyfb_par *par)
They should not be marked as static since they are used in
mach64_ct.c.
Fixes: bfa5782b9c ("fbdev: atyfb: add stubs for aty_{ld,st}_lcd()")
Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Reported-by: kernel test robot <lkp@intel.com>
Cc: Daniel Vetter <daniel.vetter@ffwll.ch>
Cc: Nick Desaulniers <ndesaulniers@google.com>
Cc: linux-fbdev@vger.kernel.org
Cc: dri-devel@lists.freedesktop.org
Cc: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Cc: Sam Ravnborg <sam@ravnborg.org>
Cc: David Airlie <airlied@linux.ie>
Cc: Jani Nikula <jani.nikula@linux.intel.com>
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20210224215528.822-1-rdunlap@infradead.org
Acked-by: Nick Desaulniers <ndesaulniers@google.com>
Signed-off-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Call qxl_bo_unpin (which does a reservation) without holding the
release_mutex lock. Fixes lockdep (correctly) warning on a possible
deadlock.
Fixes: e8dd3506dc ("drm/qxl: unpin release objects")
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Acked-by: Thomas Zimmermann <tzimmermann@suse.de>
Link: http://patchwork.freedesktop.org/patch/msgid/20210217123213.2199186-5-kraxel@redhat.com
(cherry picked from commit 19089b760e)
Signed-off-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Need to check the module variant as well.
Acked-by: Prike Liang <Prike.Liang@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
When AGP is compiled as module radeon must be compiled as module as
well.
Signed-off-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Otherwise we will run into a NULL ptr deref.
Signed-off-by: Christian König <christian.koenig@amd.com>
Bug: https://bugzilla.kernel.org/show_bug.cgi?id=212137
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org # 5.11.x
The "/ 10" should be applied to the right-hand operand instead of
the left-hand one.
Signed-off-by: Evan Quan <evan.quan@amd.com>
Noticed-by: Georgios Toptsidis <gtoptsid@gmail.com>
Reviewed-by: Feifei Xu <Feifei.Xu@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
Currently the pcie dpm has two problems.
1. Only the high dpm level speed/width can be overrided
if the requested values are out of the pcie capability.
2. The high dpm level is always overrided though sometimes
it's not necesarry.
Signed-off-by: Kenneth Feng <kenneth.feng@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
FB BO should not be ttm_bo_type_kernel type and
amdgpufb_create_pinned_object() pins the FB BO anyway.
Signed-off-by: Nirmoy Das <nirmoy.das@amd.com>
Acked-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
[Why]
For DGPU Navi, the wm_table.nv_entries are used. These entires are not
populated for DCN301 Vangogh APU, but instead wm_table.entries are.
[How]
Use DCN21 Renoir style wm calculations.
Signed-off-by: Leo Li <sunpeng.li@amd.com>
Signed-off-by: Zhan Liu <zhan.liu@amd.com>
Reviewed-by: Dmytro Laktyushkin <Dmytro.Laktyushkin@amd.com>
Acked-by: Zhan Liu <zhan.liu@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
[Why & How]
Ported logic from dcn21 for reading in pipe fusing to dcn30.
Supported configurations are 1 and 6 pipes. Invalid fusing
will revert to 1 pipe being enabled.
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Dillon Varone <dillon.varone@amd.com>
Reviewed-by: Jun Lei <Jun.Lei@amd.com>
Acked-by: Eryk Brol <eryk.brol@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
[WHY & HOW]
Using values provided by DF for latency may cause hangs in
multi display configurations. Revert change to previous value.
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Sung Lee <sung.lee@amd.com>
Reviewed-by: Haonan Wang <Haonan.Wang2@amd.com>
Acked-by: Eryk Brol <eryk.brol@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
- fix various user space visible copy_to_user() instances which return the
number of bytes left to copy instead of -EFAULT
- make TMPFS_INODE64 available again for s390 and alpha, now that both
architectures have been switched to 64-bit ino_t
see commit 96c0a6a72d ("s390,alpha: switch to 64-bit ino_t")
- make sure to release a shared hypervisor resource within the zcore device
driver also on restart and power down; also remove unneeded surrounding
debugfs_create return value checks
- for the new hardware counter set device driver rename the uapi header file to
be a bit more generic; also remove 60 second read limit which is not really
necessary and without the limit the interface can be easier tested
- some small cleanups, the largest being to convert all long long in our time
and idle code to longs
- update defconfigs
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Merge tag 's390-5.12-3' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux
Pull s390 fixes from Heiko Carstens:
- fix various user space visible copy_to_user() instances which return
the number of bytes left to copy instead of -EFAULT
- make TMPFS_INODE64 available again for s390 and alpha, now that both
architectures have been switched to 64-bit ino_t (see commit
96c0a6a72d18: "s390,alpha: switch to 64-bit ino_t")
- make sure to release a shared hypervisor resource within the zcore
device driver also on restart and power down; also remove unneeded
surrounding debugfs_create return value checks
- for the new hardware counter set device driver rename the uapi header
file to be a bit more generic; also remove 60 second read limit which
is not really necessary and without the limit the interface can be
easier tested
- some small cleanups, the largest being to convert all long long in
our time and idle code to longs
- update defconfigs
* tag 's390-5.12-3' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux:
s390: remove IBM_PARTITION and CONFIGFS_FS from zfcpdump defconfig
s390: update defconfigs
s390,alpha: make TMPFS_INODE64 available again
s390/cio: return -EFAULT if copy_to_user() fails
s390/tty3270: avoid comma separated statements
s390/cpumf: remove unneeded semicolon
s390/crypto: return -EFAULT if copy_to_user() fails
s390/cio: return -EFAULT if copy_to_user() fails
s390/cpumf: rename header file to hwctrset.h
s390/zcore: release dump save area on restart or power down
s390/zcore: no need to check return value of debugfs_create functions
s390/cpumf: remove 60 seconds read limit
s390/topology: remove always false if check
s390/time,idle: get rid of unsigned long long
[Why]
pflip interrupt would not be enabled promptly if a pipe is disabled
and re-enabled, causing flip_done timeout error during DP
compliance tests
[How]
Enable pflip interrupt upon pipe enablement
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Qingqing Zhuo <qingqing.zhuo@amd.com>
Reviewed-by: Nicholas Kazlauskas <Nicholas.Kazlauskas@amd.com>
Acked-by: Eryk Brol <eryk.brol@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
After fixing nested FPU contexts caused by 41401ac677 we're still seeing
complaints about spurious kernel_fpu_end(). As it turns out this was
already fixed for dcn20 in commit f41ed88cbd ("drm/amdgpu/display:
use GFP_ATOMIC in dcn20_validate_bandwidth_internal") but never moved
forward to dcn21.
Signed-off-by: Holger Hoffstätte <holger@applied-asynchrony.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
Commit 41401ac677 added FPU wrappers to dcn21_validate_bandwidth(),
which was correct. Unfortunately a nested function alredy contained
DC_FP_START()/DC_FP_END() calls, which results in nested FPU context
enter/exit and complaints by kernel_fpu_begin_mask().
This can be observed e.g. with 5.10.20, which backported 41401ac677
and now emits the following warning on boot:
WARNING: CPU: 6 PID: 858 at arch/x86/kernel/fpu/core.c:129 kernel_fpu_begin_mask+0xa5/0xc0
Call Trace:
dcn21_calculate_wm+0x47/0xa90 [amdgpu]
dcn21_validate_bandwidth_fp+0x15d/0x2b0 [amdgpu]
dcn21_validate_bandwidth+0x29/0x40 [amdgpu]
dc_validate_global_state+0x3c7/0x4c0 [amdgpu]
The warning is emitted due to the additional DC_FP_START/END calls in
patch_bounding_box(), which is inlined into dcn21_calculate_wm(),
its only caller. Removing the calls brings the code in line with
dcn20 and makes the warning disappear.
Fixes: 41401ac677 ("drm/amd/display: Add FPU wrappers to dcn21_validate_bandwidth()")
Signed-off-by: Holger Hoffstätte <holger@applied-asynchrony.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
There seem devices that don't work with the aux channel backlight
control. For allowing such users to test with the other backlight
control method, provide a new module option, aux_backlight, to specify
enabling or disabling the aux backport support explicitly. As
default, the aux support is detected by the hardware capability.
v2: make the backlight option generic in case we add future
backlight types (Alex)
BugLink: https://bugzilla.opensuse.org/show_bug.cgi?id=1180749
BugLink: https://gitlab.freedesktop.org/drm/amd/-/issues/1438
Reviewed-by: Nicholas Kazlauskas <nicholas.kazlauskas@amd.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
Need to fetch it via aux.
Reviewed-by: Nicholas Kazlauskas <nicholas.kazlauskas@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
It just spams the logs.
Reviewed-by: Nicholas Kazlauskas <nicholas.kazlauskas@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
Avoid the extra wrapper function.
Reviewed-by: Nicholas Kazlauskas <nicholas.kazlauskas@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
This reverts commit 8ff60eb052.
The kernel test robot reports a huge performance regression due to the
commit, and the reason seems fairly straightforward: when there is
contention on the page list (which is what causes acquire_slab() to
fail), we do _not_ want to just loop and try again, because that will
transfer the contention to the 'n->list_lock' spinlock we hold, and
just make things even worse.
This is admittedly likely a problem only on big machines - the kernel
test robot report comes from a 96-thread dual socket Intel Xeon Gold
6252 setup, but the regression there really is quite noticeable:
-47.9% regression of stress-ng.rawpkt.ops_per_sec
and the commit that was marked as being fixed (7ced37197196: "slub:
Acquire_slab() avoid loop") actually did the loop exit early very
intentionally (the hint being that "avoid loop" part of that commit
message), exactly to avoid this issue.
The correct thing to do may be to pick some kind of reasonable middle
ground: instead of breaking out of the loop on the very first sign of
contention, or trying over and over and over again, the right thing may
be to re-try _once_, and then give up on the second failure (or pick
your favorite value for "once"..).
Reported-by: kernel test robot <oliver.sang@intel.com>
Link: https://lore.kernel.org/lkml/20210301080404.GF12822@xsang-OptiPlex-9020/
Cc: Jann Horn <jannh@google.com>
Cc: David Rientjes <rientjes@google.com>
Cc: Joonsoo Kim <iamjoonsoo.kim@lge.com>
Acked-by: Christoph Lameter <cl@linux.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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Merge tag 'for-linus-2021-03-10' of git://git.kernel.org/pub/scm/linux/kernel/git/brauner/linux
Pull detached mounts fix from Christian Brauner:
"Creating a series of detached mounts, attaching them to the
filesystem, and unmounting them can be used to trigger an integer
overflow in ns->mounts causing the kernel to block any new mounts in
count_mounts() and returning ENOSPC because it falsely assumes that
the maximum number of mounts in the mount namespace has been reached,
i.e. it thinks it can't fit the new mounts into the mount namespace
anymore.
Without this fix heavy use of the new mount API with move_mount() will
cause the host to become unuseable and thus blocks some xfstest
patches I want to resend.
Depending on the number of mounts in your system, this can be
reproduced on any kernel that supportes open_tree() and move_mount().
A reproducer has been sent for inclusion with xfstests. It takes care
to do this in another mount namespace, not in the host's mount
namespace so there shouldn't be any risk in running it but if one did
run it on the host it would require a reboot in order to be able to
mount again. See
https://lore.kernel.org/fstests/20210309121041.753359-1-christian.brauner@ubuntu.com
The root cause of this is that detached mounts aren't handled
correctly when source and target mount are identical and reside on a
shared mount causing a broken mount tree where the detached source
itself is propagated which propagation prevents for regular
bind-mounts and new mounts.
This ultimately leads to a miscalculation of the number of mounts in
the mount namespace.
Detached mounts created via 'open_tree(fd, path, OPEN_TREE_CLONE)' are
essentially like an unattached bind-mount. They can then later on be
attached to the filesystem via move_mount() which calls into
attach_recursive_mount().
Part of attaching it to the filesystem is making sure that mounts get
correctly propagated in case the destination mountpoint is MS_SHARED,
i.e. is a shared mountpoint. This is done by calling into
propagate_mnt() which walks the list of peers calling propagate_one()
on each mount in this list making sure it receives the propagation
event. The propagate_one() function thereby skips both new mounts and
bind mounts to not propagate them "into themselves". Both are
identified by checking whether the mount is already attached to any
mount namespace in mnt->mnt_ns. The is what the IS_MNT_NEW() helper is
responsible for.
However, detached mounts have an anonymous mount namespace attached to
them stashed in mnt->mnt_ns which means that IS_MNT_NEW() doesn't
realize they need to be skipped causing the mount to propagate "into
itself" breaking the mount table and causing a disconnect between the
number of mounts recorded as being beneath or reachable from the
target mountpoint and the number of mounts actually recorded/counted
in ns->mounts ultimately causing an overflow which in turn prevents
any new mounts via the ENOSPC issue.
So teach propagation to handle detached mounts by making it aware of
them. I've been tracking this issue down for the last couple of days
and then verifying that the fix is correct by unmounting everything in
my current mount table leaving only /proc and /sys mounted and running
the reproducer above overnight verifying the number of mounts counted
in ns->mounts. With this fix the counts are correct and the ENOSPC
issue can't be reproduced.
This change will only have an effect on mounts created with the new
mount API since detached mounts cannot be created with the old mount
API so regressions are extremely unlikely.
Here's an illustration:
#### mount():
ubuntu@f1-vm:~$ sudo mount --bind /mnt/ /mnt/
ubuntu@f1-vm:~$ findmnt | grep -i mnt
├─/mnt /dev/sda2[/mnt] ext4 rw,relatime
#### open_tree(OPEN_TREE_CLONE) + move_mount() with bug:
ubuntu@f1-vm:~$ sudo ./mount-new /mnt/ /mnt/
ubuntu@f1-vm:~$ findmnt | grep -i mnt
├─/mnt /dev/sda2[/mnt] ext4 rw,relatime
│ └─/mnt /dev/sda2[/mnt] ext4 rw,relatime
#### open_tree(OPEN_TREE_CLONE) + move_mount() with the fix:
ubuntu@f1-vm:~$ sudo ./mount-new /mnt /mnt
ubuntu@f1-vm:~$ findmnt | grep -i mnt
└─/mnt /dev/sda2[/mnt] ext4 rw,relatime"
* tag 'for-linus-2021-03-10' of git://git.kernel.org/pub/scm/linux/kernel/git/brauner/linux:
mount: fix mounting of detached mounts onto targets that reside on shared mounts
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Merge tag '5.12-rc2-smb3' of git://git.samba.org/sfrench/cifs-2.6
Pull cifs fixes from Steve French:
"Six cifs/smb3 fixes, three of them for stable, including some
important mulitchannel crediting fixes, and a fix for statfs error
handling"
* tag '5.12-rc2-smb3' of git://git.samba.org/sfrench/cifs-2.6:
cifs: do not send close in compound create+close requests
cifs: return proper error code in statfs(2)
cifs: change noisy error message to FYI
cifs: print MIDs in decimal notation
cifs: ask for more credit on async read/write code paths
cifs: fix credit accounting for extra channel
Pull networking fixes from David Miller:
1) Fix transmissions in dynamic SMPS mode in ath9k, from Felix Fietkau.
2) TX skb error handling fix in mt76 driver, also from Felix.
3) Fix BPF_FETCH atomic in x86 JIT, from Brendan Jackman.
4) Avoid double free of percpu pointers when freeing a cloned bpf prog.
From Cong Wang.
5) Use correct printf format for dma_addr_t in ath11k, from Geert
Uytterhoeven.
6) Fix resolve_btfids build with older toolchains, from Kun-Chuan
Hsieh.
7) Don't report truncated frames to mac80211 in mt76 driver, from
Lorenzop Bianconi.
8) Fix watcdog timeout on suspend/resume of stmmac, from Joakim Zhang.
9) mscc ocelot needs NET_DEVLINK selct in Kconfig, from Arnd Bergmann.
10) Fix sign comparison bug in TCP_ZEROCOPY_RECEIVE getsockopt(), from
Arjun Roy.
11) Ignore routes with deleted nexthop object in mlxsw, from Ido
Schimmel.
12) Need to undo tcp early demux lookup sometimes in nf_nat, from
Florian Westphal.
13) Fix gro aggregation for udp encaps with zero csum, from Daniel
Borkmann.
14) Make sure to always use imp*_ndo_send when necessaey, from Jason A.
Donenfeld.
15) Fix TRSCER masks in sh_eth driver from Sergey Shtylyov.
16) prevent overly huge skb allocationsd in qrtr, from Pavel Skripkin.
17) Prevent rx ring copnsumer index loss of sync in enetc, from Vladimir
Oltean.
18) Make sure textsearch copntrol block is large enough, from Wilem de
Bruijn.
19) Revert MAC changes to r8152 leading to instability, from Hates Wang.
20) Advance iov in 9p even for empty reads, from Jissheng Zhang.
21) Double hook unregister in nftables, from PabloNeira Ayuso.
22) Fix memleak in ixgbe, fropm Dinghao Liu.
23) Avoid dups in pkt scheduler class dumps, from Maximilian Heyne.
24) Various mptcp fixes from Florian Westphal, Paolo Abeni, and Geliang
Tang.
25) Fix DOI refcount bugs in cipso, from Paul Moore.
26) One too many irqsave in ibmvnic, from Junlin Yang.
27) Fix infinite loop with MPLS gso segmenting via virtio_net, from
Balazs Nemeth.
* git://git.kernel.org:/pub/scm/linux/kernel/git/netdev/net: (164 commits)
s390/qeth: fix notification for pending buffers during teardown
s390/qeth: schedule TX NAPI on QAOB completion
s390/qeth: improve completion of pending TX buffers
s390/qeth: fix memory leak after failed TX Buffer allocation
net: avoid infinite loop in mpls_gso_segment when mpls_hlen == 0
net: check if protocol extracted by virtio_net_hdr_set_proto is correct
net: dsa: xrs700x: check if partner is same as port in hsr join
net: lapbether: Remove netif_start_queue / netif_stop_queue
atm: idt77252: fix null-ptr-dereference
atm: uPD98402: fix incorrect allocation
atm: fix a typo in the struct description
net: qrtr: fix error return code of qrtr_sendmsg()
mptcp: fix length of ADD_ADDR with port sub-option
net: bonding: fix error return code of bond_neigh_init()
net: enetc: allow hardware timestamping on TX queues with tc-etf enabled
net: enetc: set MAC RX FIFO to recommended value
net: davicom: Use platform_get_irq_optional()
net: davicom: Fix regulator not turned off on driver removal
net: davicom: Fix regulator not turned off on failed probe
net: dsa: fix switchdev objects on bridge master mistakenly being applied on ports
...
Pull sparc fixes from David Miller:
"Fix opcode filtering for exceptions, and clean up defconfig"
* git://git.kernel.org:/pub/scm/linux/kernel/git/davem/sparc:
sparc: sparc64_defconfig: remove duplicate CONFIGs
sparc64: Fix opcode filtering in handling of no fault loads
After my patch there is CONFIG_ATA defined twice.
Remove the duplicate one.
Same problem for CONFIG_HAPPYMEAL, except I added as builtin for boot
test with NFS.
Reported-by: Stephen Rothwell <sfr@canb.auug.org.au>
Fixes: a57cdeb369 ("sparc: sparc64_defconfig: add necessary configs for qemu")
Signed-off-by: Corentin Labbe <clabbe@baylibre.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Arnd Bergmann