Pull more random number generator updates from Jason Donenfeld:
"This time with some large scale treewide cleanups.
The intent of this pull is to clean up the way callers fetch random
integers. The current rules for doing this right are:
- If you want a secure or an insecure random u64, use get_random_u64()
- If you want a secure or an insecure random u32, use get_random_u32()
The old function prandom_u32() has been deprecated for a while
now and is just a wrapper around get_random_u32(). Same for
get_random_int().
- If you want a secure or an insecure random u16, use get_random_u16()
- If you want a secure or an insecure random u8, use get_random_u8()
- If you want secure or insecure random bytes, use get_random_bytes().
The old function prandom_bytes() has been deprecated for a while
now and has long been a wrapper around get_random_bytes()
- If you want a non-uniform random u32, u16, or u8 bounded by a
certain open interval maximum, use prandom_u32_max()
I say "non-uniform", because it doesn't do any rejection sampling
or divisions. Hence, it stays within the prandom_*() namespace, not
the get_random_*() namespace.
I'm currently investigating a "uniform" function for 6.2. We'll see
what comes of that.
By applying these rules uniformly, we get several benefits:
- By using prandom_u32_max() with an upper-bound that the compiler
can prove at compile-time is ≤65536 or ≤256, internally
get_random_u16() or get_random_u8() is used, which wastes fewer
batched random bytes, and hence has higher throughput.
- By using prandom_u32_max() instead of %, when the upper-bound is
not a constant, division is still avoided, because
prandom_u32_max() uses a faster multiplication-based trick instead.
- By using get_random_u16() or get_random_u8() in cases where the
return value is intended to indeed be a u16 or a u8, we waste fewer
batched random bytes, and hence have higher throughput.
This series was originally done by hand while I was on an airplane
without Internet. Later, Kees and I worked on retroactively figuring
out what could be done with Coccinelle and what had to be done
manually, and then we split things up based on that.
So while this touches a lot of files, the actual amount of code that's
hand fiddled is comfortably small"
* tag 'random-6.1-rc1-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/crng/random:
prandom: remove unused functions
treewide: use get_random_bytes() when possible
treewide: use get_random_u32() when possible
treewide: use get_random_{u8,u16}() when possible, part 2
treewide: use get_random_{u8,u16}() when possible, part 1
treewide: use prandom_u32_max() when possible, part 2
treewide: use prandom_u32_max() when possible, part 1
Pull more drm updates from Dave Airlie:
"Round of fixes for the merge window stuff, bunch of amdgpu and i915
changes, this should have the gcc11 warning fix, amongst other
changes.
amdgpu:
- DC mutex fix
- DC SubVP fixes
- DCN 3.2.x fixes
- DCN 3.1.x fixes
- SDMA 6.x fixes
- Enable DPIA for 3.1.4
- VRR fixes
- VRAM BO swapping fix
- Revert dirty fb helper change
- SR-IOV suspend/resume fixes
- Work around GCC array bounds check fail warning
- UMC 8.10 fixes
- Misc fixes and cleanups
i915:
- Round to closest in g4x+ HDMI clock readout
- Update MOCS table for EHL
- Fix PSR_IMR/IIR field handling
- Fix watermark calculations for gen12+/DG2 modifiers
- Reject excessive dotclocks early
- Fix revocation of non-persistent contexts
- Handle migration for dpt
- Fix display problems after resume
- Allow control over the flags when migrating
- Consider DG2_RC_CCS_CC when migrating buffers"
* tag 'drm-next-2022-10-14' of git://anongit.freedesktop.org/drm/drm: (110 commits)
drm/amd/display: Add HUBP surface flip interrupt handler
drm/i915/display: consider DG2_RC_CCS_CC when migrating buffers
drm/i915: allow control over the flags when migrating
drm/amd/display: Simplify bool conversion
drm/amd/display: fix transfer function passed to build_coefficients()
drm/amd/display: add a license to cursor_reg_cache.h
drm/amd/display: make virtual_disable_link_output static
drm/amd/display: fix indentation in dc.c
drm/amd/display: make dcn32_split_stream_for_mpc_or_odm static
drm/amd/display: fix build error on arm64
drm/amd/display: 3.2.207
drm/amd/display: Clean some DCN32 macros
drm/amdgpu: Add poison mode query for umc v8_10_0
drm/amdgpu: Update umc v8_10_0 headers
drm/amdgpu: fix coding style issue for mca notifier
drm/amdgpu: define convert_error_address for umc v8.7
drm/amdgpu: define RAS convert_error_address API
drm/amdgpu: remove check for CE in RAS error address query
drm/i915: Fix display problems after resume
drm/amd/display: fix array-bounds error in dc_stream_remove_writeback() [take 2]
...
Rather than incurring a division or requesting too many random bytes for
the given range, use the prandom_u32_max() function, which only takes
the minimum required bytes from the RNG and avoids divisions. This was
done mechanically with this coccinelle script:
@basic@
expression E;
type T;
identifier get_random_u32 =~ "get_random_int|prandom_u32|get_random_u32";
typedef u64;
@@
(
- ((T)get_random_u32() % (E))
+ prandom_u32_max(E)
|
- ((T)get_random_u32() & ((E) - 1))
+ prandom_u32_max(E * XXX_MAKE_SURE_E_IS_POW2)
|
- ((u64)(E) * get_random_u32() >> 32)
+ prandom_u32_max(E)
|
- ((T)get_random_u32() & ~PAGE_MASK)
+ prandom_u32_max(PAGE_SIZE)
)
@multi_line@
identifier get_random_u32 =~ "get_random_int|prandom_u32|get_random_u32";
identifier RAND;
expression E;
@@
- RAND = get_random_u32();
... when != RAND
- RAND %= (E);
+ RAND = prandom_u32_max(E);
// Find a potential literal
@literal_mask@
expression LITERAL;
type T;
identifier get_random_u32 =~ "get_random_int|prandom_u32|get_random_u32";
position p;
@@
((T)get_random_u32()@p & (LITERAL))
// Add one to the literal.
@script:python add_one@
literal << literal_mask.LITERAL;
RESULT;
@@
value = None
if literal.startswith('0x'):
value = int(literal, 16)
elif literal[0] in '123456789':
value = int(literal, 10)
if value is None:
print("I don't know how to handle %s" % (literal))
cocci.include_match(False)
elif value == 2**32 - 1 or value == 2**31 - 1 or value == 2**24 - 1 or value == 2**16 - 1 or value == 2**8 - 1:
print("Skipping 0x%x for cleanup elsewhere" % (value))
cocci.include_match(False)
elif value & (value + 1) != 0:
print("Skipping 0x%x because it's not a power of two minus one" % (value))
cocci.include_match(False)
elif literal.startswith('0x'):
coccinelle.RESULT = cocci.make_expr("0x%x" % (value + 1))
else:
coccinelle.RESULT = cocci.make_expr("%d" % (value + 1))
// Replace the literal mask with the calculated result.
@plus_one@
expression literal_mask.LITERAL;
position literal_mask.p;
expression add_one.RESULT;
identifier FUNC;
@@
- (FUNC()@p & (LITERAL))
+ prandom_u32_max(RESULT)
@collapse_ret@
type T;
identifier VAR;
expression E;
@@
{
- T VAR;
- VAR = (E);
- return VAR;
+ return E;
}
@drop_var@
type T;
identifier VAR;
@@
{
- T VAR;
... when != VAR
}
Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Reviewed-by: Kees Cook <keescook@chromium.org>
Reviewed-by: Yury Norov <yury.norov@gmail.com>
Reviewed-by: KP Singh <kpsingh@kernel.org>
Reviewed-by: Jan Kara <jack@suse.cz> # for ext4 and sbitmap
Reviewed-by: Christoph Böhmwalder <christoph.boehmwalder@linbit.com> # for drbd
Acked-by: Jakub Kicinski <kuba@kernel.org>
Acked-by: Heiko Carstens <hca@linux.ibm.com> # for s390
Acked-by: Ulf Hansson <ulf.hansson@linaro.org> # for mmc
Acked-by: Darrick J. Wong <djwong@kernel.org> # for xfs
Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
Pull MM updates from Andrew Morton:
- Yu Zhao's Multi-Gen LRU patches are here. They've been under test in
linux-next for a couple of months without, to my knowledge, any
negative reports (or any positive ones, come to that).
- Also the Maple Tree from Liam Howlett. An overlapping range-based
tree for vmas. It it apparently slightly more efficient in its own
right, but is mainly targeted at enabling work to reduce mmap_lock
contention.
Liam has identified a number of other tree users in the kernel which
could be beneficially onverted to mapletrees.
Yu Zhao has identified a hard-to-hit but "easy to fix" lockdep splat
at [1]. This has yet to be addressed due to Liam's unfortunately
timed vacation. He is now back and we'll get this fixed up.
- Dmitry Vyukov introduces KMSAN: the Kernel Memory Sanitizer. It uses
clang-generated instrumentation to detect used-unintialized bugs down
to the single bit level.
KMSAN keeps finding bugs. New ones, as well as the legacy ones.
- Yang Shi adds a userspace mechanism (madvise) to induce a collapse of
memory into THPs.
- Zach O'Keefe has expanded Yang Shi's madvise(MADV_COLLAPSE) to
support file/shmem-backed pages.
- userfaultfd updates from Axel Rasmussen
- zsmalloc cleanups from Alexey Romanov
- cleanups from Miaohe Lin: vmscan, hugetlb_cgroup, hugetlb and
memory-failure
- Huang Ying adds enhancements to NUMA balancing memory tiering mode's
page promotion, with a new way of detecting hot pages.
- memcg updates from Shakeel Butt: charging optimizations and reduced
memory consumption.
- memcg cleanups from Kairui Song.
- memcg fixes and cleanups from Johannes Weiner.
- Vishal Moola provides more folio conversions
- Zhang Yi removed ll_rw_block() :(
- migration enhancements from Peter Xu
- migration error-path bugfixes from Huang Ying
- Aneesh Kumar added ability for a device driver to alter the memory
tiering promotion paths. For optimizations by PMEM drivers, DRM
drivers, etc.
- vma merging improvements from Jakub Matěn.
- NUMA hinting cleanups from David Hildenbrand.
- xu xin added aditional userspace visibility into KSM merging
activity.
- THP & KSM code consolidation from Qi Zheng.
- more folio work from Matthew Wilcox.
- KASAN updates from Andrey Konovalov.
- DAMON cleanups from Kaixu Xia.
- DAMON work from SeongJae Park: fixes, cleanups.
- hugetlb sysfs cleanups from Muchun Song.
- Mike Kravetz fixes locking issues in hugetlbfs and in hugetlb core.
Link: https://lkml.kernel.org/r/CAOUHufZabH85CeUN-MEMgL8gJGzJEWUrkiM58JkTbBhh-jew0Q@mail.gmail.com [1]
* tag 'mm-stable-2022-10-08' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm: (555 commits)
hugetlb: allocate vma lock for all sharable vmas
hugetlb: take hugetlb vma_lock when clearing vma_lock->vma pointer
hugetlb: fix vma lock handling during split vma and range unmapping
mglru: mm/vmscan.c: fix imprecise comments
mm/mglru: don't sync disk for each aging cycle
mm: memcontrol: drop dead CONFIG_MEMCG_SWAP config symbol
mm: memcontrol: use do_memsw_account() in a few more places
mm: memcontrol: deprecate swapaccounting=0 mode
mm: memcontrol: don't allocate cgroup swap arrays when memcg is disabled
mm/secretmem: remove reduntant return value
mm/hugetlb: add available_huge_pages() func
mm: remove unused inline functions from include/linux/mm_inline.h
selftests/vm: add selftest for MADV_COLLAPSE of uffd-minor memory
selftests/vm: add file/shmem MADV_COLLAPSE selftest for cleared pmd
selftests/vm: add thp collapse shmem testing
selftests/vm: add thp collapse file and tmpfs testing
selftests/vm: modularize thp collapse memory operations
selftests/vm: dedup THP helpers
mm/khugepaged: add tracepoint to hpage_collapse_scan_file()
mm/madvise: add file and shmem support to MADV_COLLAPSE
...
Patch which added graceful exit for non-persistent contexts missed the
fact it is not enough to set the exiting flag on a context and let the
backend handle it from there.
GuC backend cannot handle it because it runs independently in the
firmware and driver might not see the requests ever again. Patch also
missed the fact some usages of intel_context_is_banned in the GuC backend
needed replacing with newly introduced intel_context_is_schedulable.
Fix the first issue by calling into backend revoke when we know this is
the last chance to do it. Fix the second issue by replacing
intel_context_is_banned with intel_context_is_schedulable, which should
always be safe since latter is a superset of the former.
v2:
* Just call ce->ops->revoke unconditionally. (Andrzej)
Signed-off-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Fixes: 45c64ecf97 ("drm/i915: Improve user experience and driver robustness under SIGINT or similar")
Cc: Andrzej Hajda <andrzej.hajda@intel.com>
Cc: John Harrison <John.C.Harrison@Intel.com>
Cc: Daniele Ceraolo Spurio <daniele.ceraolospurio@intel.com>
Cc: <stable@vger.kernel.org> # v6.0+
Reviewed-by: Andrzej Hajda <andrzej.hajda@intel.com>
Acked-by: Daniele Ceraolo Spurio <daniele.ceraolospurio@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20221003121630.694249-1-tvrtko.ursulin@linux.intel.com
(cherry picked from commit 0add082cebac8555ee3972ba768ae5c01db7a498)
Signed-off-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Pull drm updates from Dave Airlie:
"Lots of stuff all over, some new AMD IP support and gang submit
support. i915 has further DG2 and Meteorlake pieces, and a bunch of
i915 display refactoring. msm has a shrinker rework. There are also a
bunch of conversions to use kunit.
This has two external pieces, some MEI changes needed for future Intel
discrete GPUs. These should be acked by Greg. There is also a cross
maintainer shared tree with some backlight rework from Hans in here.
Core:
- convert selftests to kunit
- managed init for more objects
- move to idr_init_base
- rename fb and gem cma helpers to dma
- hide unregistered connectors from getconnector ioctl
- DSC passthrough aux support
- backlight handling improvements
- add dma_resv_assert_held to vmap/vunmap
edid:
- move luminance calculation to core
fbdev:
- fix aperture helper usage
fourcc:
- add more format helpers
- add DRM_FORMAT_Cxx, DRM_FORMAT_Rxx, DRM_FORMAT_Dxx
- add packed AYUV8888, XYUV8888
- add some kunit tests
ttm:
- allow bos without backing store
- rewrite placement to use intersect/compatible functions
dma-buf:
- docs update
- improve signalling when debugging
udmabuf:
- fix failure path GPF
dp:
- drop dp/mst legacy code
- atomic mst state support
- audio infoframe packing
panel:
- Samsung LTL101AL01
- B120XAN01.0
- R140NWF5 RH
- DMT028VGHMCMI-1A T
- AUO B133UAN02.1
- IVO M133NW4J-R3
- Innolux N120ACA-EA1
amdgpu:
- Gang submit support
- Mode2 reset for RDNA2
- New IP support:
DCN 3.1.4, 3.2
SMU 13.x
NBIO 7.7
GC 11.x
PSP 13.x
SDMA 6.x
GMC 11.x
- DSC passthrough support
- PSP fixes for TA support
- vangogh GFXOFF stats
- clang fixes
- gang submit CS cleanup prep work
- fix VRAM eviction issues
amdkfd:
- GC 10.3 IP ISA fixes
- fix CRIU regression
- CPU fault on COW mapping fixes
i915:
- align fw versioning with kernel practices
- add display substruct to i915 private
- add initial runtime info to driver info
- split out HDCP and backlight registers
- MEI XeHP SDV GSC support
- add per-gt sysfs defaults
- TLB invalidation improvements
- Disable PCI BAR resize on 32-bit
- GuC firmware updates and compat changes
- GuC log timestamp translation
- DG2 preemption workaround changes
- DG2 improved HDMI pixel clocks support
- PCI BAR sanity checks
- Enable DC5 on DG2
- DG2 DMC fw bumped
- ADL-S PCI ID added
- Meteorlake enablement
- Rename ggtt_view to gtt_view
- host RPS fixes
- release mmaps on rpm suspend on discrete
- clocking and dpll refactoring
- VBT definitions and parsing updates
- SKL watermark code extracted to separate file
- allow seamless M/N changes on eDP panels
- BUG_ON removal and cleanups
msm:
- DPU:
simplified VBIF configuration
cleanup CTL interfaces
- DSI:
removed unused msm_display_dsc_config struct
switch regulator calls to new API
switched to PANEL_BRIDGE for direct attached panels
- DSI_PHY: convert drivers to parent_hws
- DP: cleanup pixel_rate handling
- HDMI: turned hdmi-phy-8996 into OF clk provider
- misc dt-bindings fixes
- choose eDP as primary display if it's available
- support getting interconnects from either the mdss or the mdp5/dpu
device nodes
- gem: Shrinker + LRU re-work:
- adds a shared GEM LRU+shrinker helper and moves msm over to that
- reduce lock contention between retire and submit by avoiding the
need to acquire obj lock in retire path (and instead using resv
seeing obj's busyness in the shrinker
- fix reclaim vs submit issues
- GEM fault injection for triggering userspace error paths
- Map/unmap optimization
- Improved robustness for a6xx GPU recovery
virtio:
- improve error and edge conditions handling
- convert to use managed helpers
- stop exposing LINEAR modifier
mgag200:
- split modeset handling per model
udl:
- suspend/disconnect handling improvements
vc4:
- rework HDMI power up
- depend on PM
- better unplugging support
ast:
- resolution handling improvements
ingenic:
- add JZ4760(B) support
- avoid a modeset when sharpness property is unchanged
- use the new PM ops
it6505:
- power seq and clock updates
ssd130x:
- regmap bulk write
- use atomic helpers instead of simple helpers
via:
- rename via_drv to via_dri1, consolidate all code.
radeon:
- drop DP MST experimental support
- delayed work flush fix
- use time_after
ti-sn65dsi86:
- DP support
mediatek:
- MT8195 DP support
- drop of_gpio header
- remove unneeded result
- small DP code improvements
vkms:
- RGB565, XRGB64 and ARGB64 support
sun4i:
- tv: convert to atomic
rcar-du:
- Synopsys DW HDMI bridge DT bindings update
exynos:
- use drm_display_info.is_hdmi
- correct return of mixer_mode_valid and hdmi_mode_valid
omap:
- refcounting fix
rockchip:
- RK3568 support
- RK3399 gamma support"
* tag 'drm-next-2022-10-05' of git://anongit.freedesktop.org/drm/drm: (1374 commits)
drm/amdkfd: Fix UBSAN shift-out-of-bounds warning
drm/amdkfd: Track unified memory when switching xnack mode
drm/amdgpu: Enable sram on vcn_4_0_2
drm/amdgpu: Enable VCN DPG for GC11_0_1
drm/msm: Fix build break with recent mm tree
drm/panel: simple: Use dev_err_probe() to simplify code
drm/panel: panel-edp: Use dev_err_probe() to simplify code
drm/panel: simple: Add Multi-Inno Technology MI0800FT-9
dt-bindings: display: simple: Add Multi-Inno Technology MI0800FT-9 panel
drm/amdgpu: correct the memcpy size for ip discovery firmware
drm/amdgpu: Skip put_reset_domain if it doesn't exist
drm/amdgpu: remove switch from amdgpu_gmc_noretry_set
drm/amdgpu: Fix mc_umc_status used uninitialized warning
drm/amd/display: Prevent OTG shutdown during PSR SU
drm/amdgpu: add page retirement handling for CPU RAS
drm/amdgpu: use RAS error address convert api in mca notifier
drm/amdgpu: support to convert dedicated umc mca address
drm/amdgpu: export umc error address convert interface
drm/amdgpu: fix sdma v4 init microcode error
drm/amd/display: fix array-bounds error in dc_stream_remove_writeback()
...
drm/i915 feature pull for v6.1:
Features and functionality:
- Early Meteorlake (MTL) enabling (José, Radhakrishna, Clint, Imre, Vandita, Ville, Jani)
- Support more HDMI pixel clock frequencies on DG2 (Clint)
- Sanity check PCI BARs (Piotr Piórkowski)
- Enable DC5 on DG2 (Anusha)
- DG2 DMC firmware version bump to v2.07 (Madhumitha)
- New ADL-S PCI ID (José)
Refactoring and cleanups:
- Add display sub-struct to struct drm_i915_private (Jani)
- Add initial runtime info to device info (Jani)
- Split out HDCP and backlight registers to separate files (Jani)
Fixes:
- Skip wm/ddb readout for disabled pipes (Ville)
- HDMI port timing quirk for GLK ECS Liva Q2 (Diego Santa Cruz)
- Fix bw init null pointer dereference (Łukasz Bartosik)
- Disable PPS power hook for DP AUX backlight (Jouni)
- Avoid warnings on registering multiple backlight devices (Arun)
- Fix dual-link DSI backlight and CABC ports for display 11+ (Jani)
- Fix Type-C PHY ownership programming in HDMI legacy mode (Imre)
- Fix unclaimed register access while loading PIPEDMC-C/D (Imre)
- Bump up CDCLK for DG2 (Stan)
- Prune modes that require HDMI 2.1 FRL (Ankit)
- Disable FBC when PSR1 is enabled in display 12-13 (Matt)
- Fix TGL+ HDMI transcoder clock and DDI BUF disable order (Imre)
- Disable PSR before disable pipe (José)
- Disable DMC handlers during firmware loading/disabling on display 12+ (Imre)
- Disable clock gating for PIPEDMC-A/B as a workaround (Imre)
Merges:
- Two drm-next backmerges (Rodrigo, Jani)
Signed-off-by: Dave Airlie <airlied@redhat.com>
From: Jani Nikula <jani.nikula@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/87k06rfaku.fsf@intel.com
Release all mmap mapping for all lmem objects which are associated
with userfault such that, while pcie function in D3hot, any access
to memory mappings will raise a userfault.
Runtime resume the dgpu(when gem object lies in lmem).
This will transition the dgpu graphics function to D0
state if it was in D3 in order to access the mmap memory
mappings.
v2:
- Squashes the patches. [Matt Auld]
- Add adequate locking for lmem_userfault_list addition. [Matt Auld]
- Reused obj->userfault_count to avoid double addition. [Matt Auld]
- Added i915_gem_object_lock to check
i915_gem_object_is_lmem. [Matt Auld]
v3:
- Use i915_ttm_cpu_maps_iomem. [Matt Auld]
- Fix 'ret == 0 to ret == VM_FAULT_NOPAGE'. [Matt Auld]
- Reuse obj->userfault_count as a bool 0 or 1. [Matt Auld]
- Delete the mmaped obj from lmem_userfault_list in obj
destruction path. [Matt Auld]
- Get a wakeref for object destruction patch. [Matt Auld]
- Use intel_wakeref_auto to delay runtime PM. [Matt Auld]
v4:
- Avoid using mmo offset to get the vma_node. [Matt Auld]
- Added comment to use the lmem_userfault_lock. [Matt Auld]
- Get lmem_userfault_lock in i915_gem_object_release_mmap_offset.
[Matt Auld]
- Fixed kernel test robot generated warning.
v5:
- Addressed the cosmetics comments. [Andi]
- Changed i915_gem_runtime_pm_object_release_mmap_offset() name to
i915_gem_object_runtime_pm_release_mmap_offset() to be rhythmic.
PCIe Specs 5.3.1.4.1
Closes: https://gitlab.freedesktop.org/drm/intel/-/issues/6331
Cc: Matthew Auld <matthew.auld@intel.com>
Cc: Rodrigo Vivi <rodrigo.vivi@intel.com>
Signed-off-by: Anshuman Gupta <anshuman.gupta@intel.com>
Reviewed-by: Andi Shyti <andi.shyti@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20220913152714.16541-3-anshuman.gupta@intel.com
UAPI Changes:
- Revert "drm/i915/dg2: Add preemption changes for Wa_14015141709"
The intent of Wa_14015141709 was to inform us that userspace can no
longer control object-level preemption as it has on past platforms
(i.e., by twiddling register bit CS_CHICKEN1[0]). The description of
the workaround in the spec wasn't terribly well-written, and when we
requested clarification from the hardware teams we were told that on the
kernel side we should also probably stop setting
FF_SLICE_CS_CHICKEN1[14], which is the register bit that directs the
hardware to honor the settings in per-context register CS_CHICKEN1. It
turns out that this guidance about FF_SLICE_CS_CHICKEN1[14] was a
mistake; even though CS_CHICKEN1[0] is non-operational and useless to
userspace, there are other bits in the register that do still work and
might need to be adjusted by userspace in the future (e.g., to implement
other workarounds that show up). If we don't set
FF_SLICE_CS_CHICKEN1[14] in i915, then those future workarounds would
not take effect.
Even more details at:
https://lists.freedesktop.org/archives/intel-gfx/2022-September/305478.html
Driver Changes:
- Align GuC/HuC firmware versioning scheme to kernel practices (John)
- Fix#6639: h264 hardware video decoding broken in 5.19 on Intel(R)
Celeron(R) N3060 (Nirmoy)
- Meteorlake (MTL) enabling (Matt R)
- GuC SLPC improvements (Vinay, Rodrigo)
- Add thread execution tuning setting for ATS-M (Matt R)
- Don't start PXP without mei_pxp bind (Juston)
- Remove leftover verbose debug logging from GuC error capture (John)
- Abort suspend on low system memory conditions (Nirmoy, Matt A, Chris)
- Add DG2 Wa_16014892111 (Matt R)
- Rename ggtt_view as gtt_view (Niranjana)
- Consider HAS_FLAT_CCS() in needs_ccs_pages (Matt A)
- Don't try to disable host RPS when this was never enabled. (Rodrigo)
- Clear stalled GuC CT request after a reset (Daniele)
- Remove runtime info printing from GuC time stamp logging (Jani)
- Skip Bit12 fw domain reset for gen12+ (Sushma, Radhakrishna)
- Make GuC log sizes runtime configurable (John)
- Selftest improvements (Daniele, Matt B, Andrzej)
Signed-off-by: Dave Airlie <airlied@redhat.com>
From: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/YxshfqUN+vDe92Zn@jlahtine-mobl.ger.corp.intel.com
drm-misc-next for v6.1-rc1:
[airlied - fix sun4i_tv build]
UAPI Changes:
- Hide unregistered connectors from GETCONNECTOR ioctl.
- drm/virtio no longer advertises LINEAR modifier, as it doesn't work.
-
Cross-subsystem Changes:
- Fix GPF in udmabuf failure path.
Core Changes:
- Rework TTM placement to use intersect/compatible functions.
- Drop legacy DP-MST support.
- More DP-MST related fixes, and move all state into atomic.
- Make DRM_MIPI_DBI select DRM_KMS_HELPER.
- Add audio_infoframe packing for DP.
- Add logging when some atomic check functions fail.
- Assorted documentation updates and fixes.
Driver Changes:
- Assorted cleanups and fixes in msm, lcdif, nouveau, virtio,
panel/ilitek, bridge/icn6211, tve200, gma500, bridge/*, panfrost, via,
bochs, qxl, sun4i.
- Add add AUO B133UAN02.1, IVO M133NW4J-R3, Innolux N120ACA-EA1 eDP panels.
- Improve DP-MST modeset state handling in amdgpu, nouveau, i915.
- Drop DP-MST from radeon driver, it was broken and only user of legacy
DP-MST.
- Handle unplugging better in vc4.
- Simplify drm cmdparser tests.
- Add DP support to ti-sn65dsi86.
- Add MT8195 DP support to mediatek.
- Support RGB565, XRGB64, and ARGB64 formats in vkms.
- Convert sun4i tv support to atomic.
- Refactor vc4/vec TV Modesetting, and fix timings.
- Use atomic helpers instead of simple display helpers in ssd130x.
Maintainer changes:
- Add Douglas Anderson as reviewer for panel-edp.
Signed-off-by: Dave Airlie <airlied@redhat.com>
From: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/a489485b-3ebc-c734-0f80-aed963d89efe@linux.intel.com
drm-misc-next for v6.1:
UAPI Changes:
Cross-subsystem Changes:
- DMA-buf: documentation updates.
- Assorted small fixes to vga16fb
- Fix fbdev drivers to use the aperture helpers.
- Make removal of conflicting drivers work correctly without fbdev enabled.
Core Changes:
- bridge, scheduler, dp-mst: Assorted small fixes.
- Add more format helpers to fourcc, and use it to replace the cpp usage.
- Add DRM_FORMAT_Cxx, DRM_FORMAT_Rxx (single channel), and DRM_FORMAT_Dxx
("darkness", inverted single channel)
- Add packed AYUV8888 and XYUV8888 formats.
- Assorted documentation updates.
- Rename ttm_bo_init to ttm_bo_init_validate.
- Allow TTM bo's to exist without backing store.
- Convert drm selftests to kunit.
- Add managed init functions for (panel) bridge, crtc, encoder and connector.
- Fix endianness handling in various format conversion helpers.
- Make tests pass on big-endian platforms, and add test for rgb888 -> rgb565
- Move DRM_PLANE_HELPER_NO_SCALING to atomic helpers and rename, so
drm_plane_helper is no longer needed in most drivers.
- Use idr_init_base instead of idr_init.
- Rename FB and GEM CMA helpers to DMA helpers.
- Rework XRGB8888 related conversion helpers, and add drm_fb_blit() that
takes a iosys_map. Make drm_fb_memcpy take an iosys_map too.
- Move edid luminance calculation to core, and use it in i915.
Driver Changes:
- bridge/{adv7511,ti-sn65dsi86,parade-ps8640}, panel/{simple,nt35510,tc358767},
nouveau, sun4i, mipi-dsi, mgag200, bochs, arm, komeda, vmwgfx, pl111:
Assorted small fixes and doc updates.
- vc4: Rework hdmi power up, and depend on PM.
- panel/simple: Add Samsung LTL101AL01.
- ingenic: Add JZ4760(B) support, avoid a modeset when sharpness property
is unchanged, and use the new PM ops.
- Revert some amdgpu commits that cause garbaged graphics when starting
X, and reapply them with the real problem fixed.
- Completely rework vc4 init to use managed helpers.
- Rename via_drv to via_dri1, and move all stuff there only used by the
dri1 implementation in preperation for atomic modeset.
- Use regmap bulk write in ssd130x.
- Power sequence and clock updates to it6505.
- Split panel-sitrox-st7701 init sequence and rework mode programming code.
- virtio: Improve error and edge conditions handling, and convert to use managed
helpers.
- Add Samsung LTL101AL01, B120XAN01.0, R140NWF5 RH, DMT028VGHMCMI-1A T, panels.
- Add generic fbdev support to komeda.
- Split mgag200 modeset handling to make it more model-specific.
- Convert simpledrm to use atomic helpers.
- Improve udl suspend/disconnect handling.
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
From: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/f0c71766-61e8-19b7-763a-5fbcdefc633d@linux.intel.com
Sync drm-intel-next with v6.0-rc as well as recent drm-intel-gt-next.
Since drm-next does not have commit f0c70d41e4 ("drm/i915/guc: remove
runtime info printing from time stamp logging") yet, only
drm-intel-gt-next, will need to do that as part of the merge here to
build.
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
UAPI Changes:
- Create gt/gtN/.defaults/ for per gt sysfs defaults
Create a gt/gtN/.defaults/ directory (similar to
engine/<engine-name>/.defaults/) to expose default parameter values for
each gt in sysfs. This allows userspace to restore default parameter values
after they have changed.
Driver Changes:
- Support GuC v69 in parallel to v70 (Daniele)
- Improve TLB invalidation to limit performance regression (Chris, Mauro)
- Expose per-gt RPS defaults in sysfs (Ashutosh)
- Suppress OOM warning for shmemfs object allocation failure (Chris, Nirmoy)
- Disable PCI resize on 32-bit machines (Nirmoy)
- Update DG2 to GuC v70.4.1 (John)
- Fix CCS data copying on DG2 during swapping (Matt A)
- Add DG2 performance tuning setting recommended by spec (Matt R)
- Add GuC <-> kernel time stamp translation information to error logs (John)
- Record GuC CTB info in error logs (John)
- Route semaphores to GuC for Gen12+ when enabled (Michal Wi, John)
- Improve resilency to bug #3575: Handle reset timeouts under unrelated kernel hangs (Chris, Ashutosh)
- Avoid system freeze by removing shared locking on freeing objects (Chris, Nirmoy)
- Demote GuC error "No response for request" into debug when expected (Zhanjun)
- Fix GuC capture size warning and bump the size (John)
- Use streaming loads to speed up dumping the GuC log (Chris, John)
- Don't abort on CTB_UNUSED status from GuC (John)
- Don't send spurious policy update for GuC child contexts (Daniele)
- Don't leak the CCS state (Matt A)
- Prefer drm_err over pr_err (John)
- Eliminate unused calc_ctrl_surf_instr_size (Matt A)
- Add dedicated function for non-ctx register tuning settings (Matt R)
- Style and typo fixes, documentation improvements (Jason Wang, Mauro)
- Selftest improvements (Matt B, Rahul, John)
Signed-off-by: Dave Airlie <airlied@redhat.com>
From: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/YwYTCjA/Rhpd1n4A@jlahtine-mobl.ger.corp.intel.com
Add a delay, configurable via debugfs (default 34ms), to disable
scheduling of a context after the pin count goes to zero. Disable
scheduling is a costly operation as it requires synchronizing with
the GuC. So the idea is that a delay allows the user to resubmit
something before doing this operation. This delay is only done if
the context isn't closed and less than a given threshold
(default is 3/4) of the guc_ids are in use.
As temporary WA disable this feature for the selftests. Selftests are
very timing sensitive and any change in timing can cause failure. A
follow up patch will fixup the selftests to understand this delay.
Alan Previn: Matt Brost first introduced this series back in Oct 2021.
However no real world workload with measured performance impact was
available to prove the intended results. Today, this series is being
republished in response to a real world workload that benefited greatly
from it along with measured performance improvement.
Workload description: 36 containers were created on a DG2 device where
each container was performing a combination of 720p 3d game rendering
and 30fps video encoding. The workload density was configured in a way
that guaranteed each container to ALWAYS be able to render and
encode no less than 30fps with a predefined maximum render + encode
latency time. That means the totality of all 36 containers and their
workloads were not saturating the engines to their max (in order to
maintain just enough headrooom to meet the min fps and max latencies
of incoming container submissions).
Problem statement: It was observed that the CPU core processing the i915
soft IRQ work was experiencing severe load. Using tracelogs and an
instrumentation patch to count specific i915 IRQ events, it was confirmed
that the majority of the CPU cycles were caused by the
gen11_other_irq_handler() -> guc_irq_handler() code path. The vast
majority of the cycles was determined to be processing a specific G2H
IRQ: i.e. INTEL_GUC_ACTION_SCHED_CONTEXT_MODE_DONE. These IRQs are sent
by GuC in response to i915 KMD sending H2G requests:
INTEL_GUC_ACTION_SCHED_CONTEXT_MODE_SET. Those H2G requests are sent
whenever a context goes idle so that we can unpin the context from GuC.
The high CPU utilization % symptom was limiting density scaling.
Root Cause Analysis: Because the incoming execution buffers were spread
across 36 different containers (each with multiple contexts) but the
system in totality was NOT saturated to the max, it was assumed that each
context was constantly idling between submissions. This was causing
a thrashing of unpinning contexts from GuC at one moment, followed quickly
by repinning them due to incoming workload the very next moment. These
event-pairs were being triggered across multiple contexts per container,
across all containers at the rate of > 30 times per sec per context.
Metrics: When running this workload without this patch, we measured an
average of ~69K INTEL_GUC_ACTION_SCHED_CONTEXT_MODE_DONE events every 10
seconds or ~10 million times over ~25+ mins. With this patch, the count
reduced to ~480 every 10 seconds or about ~28K over ~10 mins. The
improvement observed is ~99% for the average counts per 10 seconds.
Signed-off-by: Matthew Brost <matthew.brost@intel.com>
Signed-off-by: Alan Previn <alan.previn.teres.alexis@intel.com>
Reviewed-by: John Harrison <John.C.Harrison@Intel.com>
Signed-off-by: John Harrison <John.C.Harrison@Intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20220817020511.2180747-3-alan.previn.teres.alexis@intel.com
Invalidate TLB in batches, in order to reduce performance regressions.
Currently, every caller performs a full barrier around a TLB
invalidation, ignoring all other invalidations that may have already
removed their PTEs from the cache. As this is a synchronous operation
and can be quite slow, we cause multiple threads to contend on the TLB
invalidate mutex blocking userspace.
We only need to invalidate the TLB once after replacing our PTE to
ensure that there is no possible continued access to the physical
address before releasing our pages. By tracking a seqno for each full
TLB invalidate we can quickly determine if one has been performed since
rewriting the PTE, and only if necessary trigger one for ourselves.
That helps to reduce the performance regression introduced by TLB
invalidate logic.
[mchehab: rebased to not require moving the code to a separate file]
Cc: stable@vger.kernel.org
Fixes: 7938d61591 ("drm/i915: Flush TLBs before releasing backing store")
Suggested-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Signed-off-by: Chris Wilson <chris.p.wilson@intel.com>
Cc: Fei Yang <fei.yang@intel.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@kernel.org>
Acked-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Reviewed-by: Andi Shyti <andi.shyti@linux.intel.com>
Signed-off-by: Andi Shyti <andi.shyti@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/4e97ef5deb6739cadaaf40aa45620547e9c4ec06.1658924372.git.mchehab@kernel.org
(cherry picked from commit 5d36acb719)
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Pull iommu updates from Joerg Roedel:
- The most intrusive patch is small and changes the default allocation
policy for DMA addresses.
Before the change the allocator tried its best to find an address in
the first 4GB. But that lead to performance problems when that space
gets exhaused, and since most devices are capable of 64-bit DMA these
days, we changed it to search in the full DMA-mask range from the
beginning.
This change has the potential to uncover bugs elsewhere, in the
kernel or the hardware. There is a Kconfig option and a command line
option to restore the old behavior, but none of them is enabled by
default.
- Add Robin Murphy as reviewer of IOMMU code and maintainer for the
dma-iommu and iova code
- Chaning IOVA magazine size from 1032 to 1024 bytes to save memory
- Some core code cleanups and dead-code removal
- Support for ACPI IORT RMR node
- Support for multiple PCI domains in the AMD-Vi driver
- ARM SMMU changes from Will Deacon:
- Add even more Qualcomm device-tree compatible strings
- Support dumping of IMP DEF Qualcomm registers on TLB sync
timeout
- Fix reference count leak on device tree node in Qualcomm driver
- Intel VT-d driver updates from Lu Baolu:
- Make intel-iommu.h private
- Optimize the use of two locks
- Extend the driver to support large-scale platforms
- Cleanup some dead code
- MediaTek IOMMU refactoring and support for TTBR up to 35bit
- Basic support for Exynos SysMMU v7
- VirtIO IOMMU driver gets a map/unmap_pages() implementation
- Other smaller cleanups and fixes
* tag 'iommu-updates-v5.20-or-v6.0' of git://git.kernel.org/pub/scm/linux/kernel/git/joro/iommu: (116 commits)
iommu/amd: Fix compile warning in init code
iommu/amd: Add support for AVIC when SNP is enabled
iommu/amd: Simplify and Consolidate Virtual APIC (AVIC) Enablement
ACPI/IORT: Fix build error implicit-function-declaration
drivers: iommu: fix clang -wformat warning
iommu/arm-smmu: qcom_iommu: Add of_node_put() when breaking out of loop
iommu/arm-smmu-qcom: Add SM6375 SMMU compatible
dt-bindings: arm-smmu: Add compatible for Qualcomm SM6375
MAINTAINERS: Add Robin Murphy as IOMMU SUBSYTEM reviewer
iommu/amd: Do not support IOMMUv2 APIs when SNP is enabled
iommu/amd: Do not support IOMMU_DOMAIN_IDENTITY after SNP is enabled
iommu/amd: Set translation valid bit only when IO page tables are in use
iommu/amd: Introduce function to check and enable SNP
iommu/amd: Globally detect SNP support
iommu/amd: Process all IVHDs before enabling IOMMU features
iommu/amd: Introduce global variable for storing common EFR and EFR2
iommu/amd: Introduce Support for Extended Feature 2 Register
iommu/amd: Change macro for IOMMU control register bit shift to decimal value
iommu/exynos: Enable default VM instance on SysMMU v7
iommu/exynos: Add SysMMU v7 register set
...
Pull MM updates from Andrew Morton:
"Most of the MM queue. A few things are still pending.
Liam's maple tree rework didn't make it. This has resulted in a few
other minor patch series being held over for next time.
Multi-gen LRU still isn't merged as we were waiting for mapletree to
stabilize. The current plan is to merge MGLRU into -mm soon and to
later reintroduce mapletree, with a view to hopefully getting both
into 6.1-rc1.
Summary:
- The usual batches of cleanups from Baoquan He, Muchun Song, Miaohe
Lin, Yang Shi, Anshuman Khandual and Mike Rapoport
- Some kmemleak fixes from Patrick Wang and Waiman Long
- DAMON updates from SeongJae Park
- memcg debug/visibility work from Roman Gushchin
- vmalloc speedup from Uladzislau Rezki
- more folio conversion work from Matthew Wilcox
- enhancements for coherent device memory mapping from Alex Sierra
- addition of shared pages tracking and CoW support for fsdax, from
Shiyang Ruan
- hugetlb optimizations from Mike Kravetz
- Mel Gorman has contributed some pagealloc changes to improve
latency and realtime behaviour.
- mprotect soft-dirty checking has been improved by Peter Xu
- Many other singleton patches all over the place"
[ XFS merge from hell as per Darrick Wong in
https://lore.kernel.org/all/YshKnxb4VwXycPO8@magnolia/ ]
* tag 'mm-stable-2022-08-03' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm: (282 commits)
tools/testing/selftests/vm/hmm-tests.c: fix build
mm: Kconfig: fix typo
mm: memory-failure: convert to pr_fmt()
mm: use is_zone_movable_page() helper
hugetlbfs: fix inaccurate comment in hugetlbfs_statfs()
hugetlbfs: cleanup some comments in inode.c
hugetlbfs: remove unneeded header file
hugetlbfs: remove unneeded hugetlbfs_ops forward declaration
hugetlbfs: use helper macro SZ_1{K,M}
mm: cleanup is_highmem()
mm/hmm: add a test for cross device private faults
selftests: add soft-dirty into run_vmtests.sh
selftests: soft-dirty: add test for mprotect
mm/mprotect: fix soft-dirty check in can_change_pte_writable()
mm: memcontrol: fix potential oom_lock recursion deadlock
mm/gup.c: fix formatting in check_and_migrate_movable_page()
xfs: fail dax mount if reflink is enabled on a partition
mm/memcontrol.c: remove the redundant updating of stats_flush_threshold
userfaultfd: don't fail on unrecognized features
hugetlb_cgroup: fix wrong hugetlb cgroup numa stat
...
Pull drm updates from Dave Airlie:
"Highlights:
- New driver for logicvc - which is a display IP core.
- EDID parser rework to add new extensions
- fbcon scrolling improvements
- i915 has some more DG2 work but not enabled by default, but should
have enough features for userspace to work now.
Otherwise it's lots of work all over the place. Detailed summary:
New driver:
- logicvc
vfio:
- use aperture API
core:
- of: Add data-lane helpers and convert drivers
- connector: Remove deprecated ida_simple_get()
media:
- Add various RGB666 and RGB888 format constants
panel:
- Add HannStar HSD101PWW
- Add ETML0700Y5DHA
dma-buf:
- add sync-file API
- set dma mask for udmabuf devices
fbcon:
- Improve scrolling performance
- Sanitize input
fbdev:
- device unregistering fixes
- vesa: Support COMPILE_TEST
- Disable firmware-device registration when first native driver loads
aperture:
- fix segfault during hot-unplug
- export for use with other subsystems
client:
- use driver validated modes
dp:
- aux: make probing more reliable
- mst: Read extended DPCD capabilities during system resume
- Support waiting for HDP signal
- Port-validation fixes
edid:
- CEA data-block iterators
- struct drm_edid introduction
- implement HF-EEODB extension
gem:
- don't use fb format non-existing planes
probe-helper:
- use 640x480 as displayport fallback
scheduler:
- don't kill jobs in interrupt context
bridge:
- Add support for i.MX8qxp and i.MX8qm
- lots of fixes/cleanups
- Add TI-DLPC3433
- fy07024di26a30d: Optional GPIO reset
- ldb: Add reg and reg-name properties to bindings, Kconfig fixes
- lt9611: Fix display sensing;
- tc358767: DSI/DPI refactoring and DSI-to-eDP support, DSI lane handling
- tc358775: Fix clock settings
- ti-sn65dsi83: Allow GPIO to sleep
- adv7511: I2C fixes
- anx7625: Fix error handling; DPI fixes; Implement HDP timeout via callback
- fsl-ldb: Drop DE flip
- ti-sn65dsi86: Convert to atomic modesetting
amdgpu:
- use atomic fence helpers in DM
- fix VRAM address calculations
- export CRTC bpc via debugfs
- Initial devcoredump support
- Enable high priority gfx queue on asics which support it
- Adjust GART size on newer APUs for S/G display
- Soft reset for GFX 11 / SDMA 6
- Add gfxoff status query for vangogh
- Fix timestamps for cursor only commits
- Adjust GART size on newer APUs for S/G display
- fix buddy memory corruption
amdkfd:
- MMU notifier fixes
- P2P DMA support using dma-buf
- Add available memory IOCTL
- HMM profiler support
- Simplify GPUVM validation
- Unified memory for CWSR save/restore area
i915:
- General driver clean-up
- DG2 enabling (still under force probe)
- DG2 small BAR memory support
- HuC loading support
- DG2 workarounds
- DG2/ATS-M device IDs added
- Ponte Vecchio prep work and new blitter engines
- add Meteorlake support
- Fix sparse warnings
- DMC MMIO range checks
- Audio related fixes
- Runtime PM fixes
- PSR fixes
- Media freq factor and per-gt enhancements
- DSI fixes for ICL+
- Disable DMC flip queue handlers
- ADL_P voltage swing updates
- Use more the VBT for panel information
- Fix on Type-C ports with TBT mode
- Improve fastset and allow seamless M/N changes
- Accept more fixed modes with VRR/DMRRS panels
- Disable connector polling for a headless SKU
- ADL-S display PLL w/a
- Enable THP on Icelake and beyond
- Fix i915_gem_object_ggtt_pin_ww regression on old platforms
- Expose per tile media freq factor in sysfs
- Fix dma_resv fence handling in multi-batch execbuf
- Improve on suspend / resume time with VT-d enabled
- export CRTC bpc settings via debugfs
msm:
- gpu: a619 support
- gpu: Fix for unclocked GMU register access
- gpu: Devcore dump enhancements
- client utilization via fdinfo support
- fix fence rollover issue
- gem: Lockdep false-positive warning fix
- gem: Switch to pfn mappings
- WB support on sc7180
- dp: dropped custom bulk clock implementation
- fix link retraining on resolution change
- hdmi: dropped obsolete GPIO support
tegra:
- context isolation for host1x engines
- tegra234 soc support
mediatek:
- add vdosys0/1 for mt8195
- add MT8195 dp_intf driver
exynos:
- Fix resume function issue of exynos decon driver by calling
clk_disable_unprepare() properly if clk_prepare_enable() failed.
nouveau:
- set of misc fixes/cleanups
- display cleanups
gma500:
- Cleanup connector I2C handling
hyperv:
- Unify VRAM allocation of Gen1 and Gen2
meson:
- Support YUV422 output; Refcount fixes
mgag200:
- Support damage clipping
- Support gamma handling
- Protect concurrent HW access
- Fixes to connector
- Store model-specific limits in device-info structure
- fix PCI register init
panfrost:
- Valhall support
r128:
- Fix bit-shift overflow
rockchip:
- Locking fixes in error path
ssd130x:
- Fix built-in linkage
udl:
- Always advertize VGA connector
ast:
- Support multiple outputs
- fix black screen on resume
sun4i:
- HDMI PHY cleanups
vc4:
- Add support for BCM2711
vkms:
- Allocate output buffer with vmalloc()
mcde:
- Fix ref-count leak
mxsfb/lcdif:
- Support i.MX8MP LCD controller
stm/ltdc:
- Support dynamic Z order
- Support mirroring
ingenic:
- Fix display at maximum resolution"
* tag 'drm-next-2022-08-03' of git://anongit.freedesktop.org/drm/drm: (1480 commits)
drm/amd/display: Fix a compilation failure on PowerPC caused by FPU code
drm/amdgpu: enable support for psp 13.0.4 block
drm/amdgpu: add files for PSP 13.0.4
drm/amdgpu: add header files for MP 13.0.4
drm/amdgpu: correct RLC_RLCS_BOOTLOAD_STATUS offset and index
drm/amdgpu: send msg to IMU for the front-door loading
drm/amdkfd: use time_is_before_jiffies(a + b) to replace "jiffies - a > b"
drm/amdgpu: fix hive reference leak when reflecting psp topology info
drm/amd/pm: enable GFX ULV feature support for SMU13.0.0
drm/amd/pm: update driver if header for SMU 13.0.0
drm/amdgpu: move mes self test after drm sched re-started
drm/amdgpu: drop non-necessary call trace dump
drm/amdgpu: enable VCN cg and JPEG cg/pg
drm/amdgpu: vcn_4_0_2 video codec query
drm/amdgpu: add VCN_4_0_2 firmware support
drm/amdgpu: add VCN function in NBIO v7.7
drm/amdgpu: fix a vcn4 boot poll bug in emulation mode
drm/amd/amdgpu: add memory training support for PSP_V13
drm/amdkfd: remove an unnecessary amdgpu_bo_ref
drm/amd/pm: Add get_gfx_off_status interface for yellow carp
...
Pull folio updates from Matthew Wilcox:
- Fix an accounting bug that made NR_FILE_DIRTY grow without limit
when running xfstests
- Convert more of mpage to use folios
- Remove add_to_page_cache() and add_to_page_cache_locked()
- Convert find_get_pages_range() to filemap_get_folios()
- Improvements to the read_cache_page() family of functions
- Remove a few unnecessary checks of PageError
- Some straightforward filesystem conversions to use folios
- Split PageMovable users out from address_space_operations into
their own movable_operations
- Convert aops->migratepage to aops->migrate_folio
- Remove nobh support (Christoph Hellwig)
* tag 'folio-6.0' of git://git.infradead.org/users/willy/pagecache: (78 commits)
fs: remove the NULL get_block case in mpage_writepages
fs: don't call ->writepage from __mpage_writepage
fs: remove the nobh helpers
jfs: stop using the nobh helper
ext2: remove nobh support
ntfs3: refactor ntfs_writepages
mm/folio-compat: Remove migration compatibility functions
fs: Remove aops->migratepage()
secretmem: Convert to migrate_folio
hugetlb: Convert to migrate_folio
aio: Convert to migrate_folio
f2fs: Convert to filemap_migrate_folio()
ubifs: Convert to filemap_migrate_folio()
btrfs: Convert btrfs_migratepage to migrate_folio
mm/migrate: Add filemap_migrate_folio()
mm/migrate: Convert migrate_page() to migrate_folio()
nfs: Convert to migrate_folio
btrfs: Convert btree_migratepage to migrate_folio
mm/migrate: Convert expected_page_refs() to folio_expected_refs()
mm/migrate: Convert buffer_migrate_page() to buffer_migrate_folio()
...
Convert all callers to pass a folio. Most have the folio
already available. Switch all users from aops->migratepage to
aops->migrate_folio. Also turn the documentation into kerneldoc.
Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Acked-by: David Sterba <dsterba@suse.com>
Invalidate TLB in batches, in order to reduce performance regressions.
Currently, every caller performs a full barrier around a TLB
invalidation, ignoring all other invalidations that may have already
removed their PTEs from the cache. As this is a synchronous operation
and can be quite slow, we cause multiple threads to contend on the TLB
invalidate mutex blocking userspace.
We only need to invalidate the TLB once after replacing our PTE to
ensure that there is no possible continued access to the physical
address before releasing our pages. By tracking a seqno for each full
TLB invalidate we can quickly determine if one has been performed since
rewriting the PTE, and only if necessary trigger one for ourselves.
That helps to reduce the performance regression introduced by TLB
invalidate logic.
[mchehab: rebased to not require moving the code to a separate file]
Cc: stable@vger.kernel.org
Fixes: 7938d61591 ("drm/i915: Flush TLBs before releasing backing store")
Suggested-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Signed-off-by: Chris Wilson <chris.p.wilson@intel.com>
Cc: Fei Yang <fei.yang@intel.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@kernel.org>
Acked-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Reviewed-by: Andi Shyti <andi.shyti@linux.intel.com>
Signed-off-by: Andi Shyti <andi.shyti@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/4e97ef5deb6739cadaaf40aa45620547e9c4ec06.1658924372.git.mchehab@kernel.org
Driver uAPI changes:
- All related to the Small BAR support: (and all by Matt Auld)
* add probed_cpu_visible_size
* expose the avail memory region tracking
* apply ALLOC_GPU only by default
* add NEEDS_CPU_ACCESS hint
* tweak error capture on recoverable contexts
Driver highlights:
- Add Small BAR support (Matt)
- Add MeteorLake support (RK)
- Add support for LMEM PCIe resizable BAR (Akeem)
Driver important fixes:
- ttm related fixes (Matt Auld)
- Fix a performance regression related to waitboost (Chris)
- Fix GT resets (Chris)
Driver others:
- Adding GuC SLPC selftest (Vinay)
- Fix ADL-N GuC load (Daniele)
- Add platform workaround (Gustavo, Matt Roper)
- DG2 and ATS-M device ID updates (Matt Roper)
- Add VM_BIND doc rfc with uAPI documentation (Niranjana)
- Fix user-after-free in vma destruction (Thomas)
- Async flush of GuC log regions (Alan)
- Fixes in selftests (Chris, Dan, Andrzej)
- Convert to drm_dbg (Umesh)
- Disable OA sseu config param for newer hardware (Umesh)
- Multi-cast register steering changes (Matt Roper)
- Add lmem_bar_size modparam (Priyanka)
Signed-off-by: Dave Airlie <airlied@redhat.com>
From: Rodrigo Vivi <rodrigo.vivi@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/Ys85pcMYLkqF/HtB@intel.com
