currently the NVME_QUIRK_SHARED_TAGS quirk for Apple devices is handled
during the assignment of nr_io_queues in nvme_setup_io_queues().
This however means that for these devices nvme_max_io_queues() will
actually not return the supported maximum which is confusing and
unexpected and also means that in nvme_probe() we are allocating
for I/O queues that will never be used.
Fix this by moving the quirk handling into nvme_max_io_queues().
Signed-off-by: Niklas Schnelle <schnelle@linux.ibm.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
in nvme_setup_io_queues() the number of I/O queues is set to either 1 in
case of a quirky Apple device or to the min of nvme_max_io_queues() or
dev->nr_allocated_queues - 1.
This is unnecessarily complicated as dev->nr_allocated_queues is only
assigned once and is nvme_max_io_queues() + 1.
Signed-off-by: Niklas Schnelle <schnelle@linux.ibm.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
In nvmet_passthru_execute_cmd() which is a high frequency function
it uses bio_alloc() which leads to memory allocation from the fs pool
for each I/O.
For NVMeoF nvmet_req we already have inline_bvec allocated as a part of
request allocation that can be used with preallocated bio when we
already know the size of request before bio allocation with bio_alloc(),
which we already do.
Introduce a bio member for the nvmet_req passthru anon union. In the
fast path, check if we can get away with inline bvec and bio from
nvmet_req with bio_init() call before actually allocating from the
bio_alloc().
This will be useful to avoid any new memory allocation under high
memory pressure situation and get rid of any extra work of
allocation (bio_alloc()) vs initialization (bio_init()) when
transfer len is < NVMET_MAX_INLINE_DATA_LEN that user can configure at
compile time.
Signed-off-by: Chaitanya Kulkarni <chaitanya.kulkarni@wdc.com>
Reviewed-by: Logan Gunthorpe <logang@deltatee.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
The function blk_rq_append_bio() is a genereric API written for all
types driver (having bounce buffers) and different context (where
request is already having a bio i.e. rq->bio != NULL).
It does mainly three things: calculating the segments, bounce queue and
if req->bio == NULL call blk_rq_bio_prep() or handle low level merge()
case.
The NVMe PCIe and fabrics transports currently does not use queue
bounce mechanism. In order to find this for each request processing
in the passthru blk_rq_append_bio() does extra work in the fast path
for each request.
When I ran I/Os with different block sizes on the passthru controller
I found that we can reuse the req->sg_cnt instead of iterating over the
bvecs to find out nr_segs in blk_rq_append_bio(). This calculation in
blk_rq_append_bio() is a duplication of work given that we have the
value in req->sg_cnt. (correct me here if I'm wrong).
With NVMe passthru request based driver we allocate fresh request each
time, so every call to blk_rq_append_bio() rq->bio will be NULL i.e.
we don't really need the second condition in the blk_rq_append_bio()
and the resulting error condition in the caller of blk_rq_append_bio().
So for NVMeOF passthru driver recalculating the segments, bounce check
and ll_back_merge code is not needed such that we can get away with the
minimal version of the blk_rq_append_bio() which removes the error check
in the fast path along with extra variable in nvmet_passthru_map_sg().
This patch updates the nvmet_passthru_map_sg() such that it does only
appending the bio to the request in the context of the NVMeOF Passthru
driver. Following are perf numbers :-
With current implementation (blk_rq_append_bio()) :-
----------------------------------------------------
+ 5.80% 0.02% kworker/0:2-mm_ [nvmet] [k] nvmet_passthru_execute_cmd
+ 5.44% 0.01% kworker/0:2-mm_ [nvmet] [k] nvmet_passthru_execute_cmd
+ 4.88% 0.00% kworker/0:2-mm_ [nvmet] [k] nvmet_passthru_execute_cmd
+ 5.44% 0.01% kworker/0:2-mm_ [nvmet] [k] nvmet_passthru_execute_cmd
+ 4.86% 0.01% kworker/0:2-mm_ [nvmet] [k] nvmet_passthru_execute_cmd
+ 5.17% 0.00% kworker/0:2-eve [nvmet] [k] nvmet_passthru_execute_cmd
With this patch using blk_rq_bio_prep() :-
----------------------------------------------------
+ 3.14% 0.02% kworker/0:2-eve [nvmet] [k] nvmet_passthru_execute_cmd
+ 3.26% 0.01% kworker/0:2-eve [nvmet] [k] nvmet_passthru_execute_cmd
+ 5.37% 0.01% kworker/0:2-mm_ [nvmet] [k] nvmet_passthru_execute_cmd
+ 5.18% 0.02% kworker/0:2-eve [nvmet] [k] nvmet_passthru_execute_cmd
+ 4.84% 0.02% kworker/0:2-mm_ [nvmet] [k] nvmet_passthru_execute_cmd
+ 4.87% 0.01% kworker/0:2-mm_ [nvmet] [k] nvmet_passthru_execute_cmd
Signed-off-by: Chaitanya Kulkarni <chaitanya.kulkarni@wdc.com>
Reviewed-by: Logan Gunthorpe <logang@deltatee.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
For passthru commands setting op_flags has no meaning. Remove the code
that sets the op flags in nvmet_passthru_map_sg().
Signed-off-by: Chaitanya Kulkarni <chaitanya.kulkarni@wdc.com>
Reviewed-by: Logan Gunthorpe <logang@deltatee.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
Right now nvme_alloc_request() allocates a request from block layer
based on the value of the qid. When qid set to NVME_QID_ANY it used
blk_mq_alloc_request() else blk_mq_alloc_request_hctx().
The function nvme_alloc_request() is called from different context, The
only place where it uses non NVME_QID_ANY value is for fabrics connect
commands :-
nvme_submit_sync_cmd() NVME_QID_ANY
nvme_features() NVME_QID_ANY
nvme_sec_submit() NVME_QID_ANY
nvmf_reg_read32() NVME_QID_ANY
nvmf_reg_read64() NVME_QID_ANY
nvmf_reg_write32() NVME_QID_ANY
nvmf_connect_admin_queue() NVME_QID_ANY
nvme_submit_user_cmd() NVME_QID_ANY
nvme_alloc_request()
nvme_keep_alive() NVME_QID_ANY
nvme_alloc_request()
nvme_timeout() NVME_QID_ANY
nvme_alloc_request()
nvme_delete_queue() NVME_QID_ANY
nvme_alloc_request()
nvmet_passthru_execute_cmd() NVME_QID_ANY
nvme_alloc_request()
nvmf_connect_io_queue() QID
__nvme_submit_sync_cmd()
nvme_alloc_request()
With passthru nvme_alloc_request() now falls into the I/O fast path such
that blk_mq_alloc_request_hctx() is never gets called and that adds
additional branch check in fast path.
Split the nvme_alloc_request() into nvme_alloc_request() and
nvme_alloc_request_qid().
Replace each call of the nvme_alloc_request() with NVME_QID_ANY param
with a call to newly added nvme_alloc_request() without NVME_QID_ANY.
Replace a call to nvme_alloc_request() with QID param with a call to
newly added nvme_alloc_request() and nvme_alloc_request_qid()
based on the qid value set in the __nvme_submit_sync_cmd().
Signed-off-by: Chaitanya Kulkarni <chaitanya.kulkarni@wdc.com>
Reviewed-by: Logan Gunthorpe <logang@deltatee.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
This is a preparation patch to have minimal block layer request bio
append functionality in the context of the NVMeOF Passthru driver which
falls in the fast path and doesn't need calls from blk_rq_append_bio().
Signed-off-by: Chaitanya Kulkarni <chaitanya.kulkarni@wdc.com>
Reviewed-by: Logan Gunthorpe <logang@deltatee.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
NVMeOF controller in the passsthru mode is capable of handling wide set
of I/O commands including vender specific passhtru io comands.
The vendor specific I/O commands are used to read the large drive
logs and can take longer than default NVMe commands, i.e. for
passthru requests the timeout value may differ from the passthru
controller's default timeout values (nvme-core:io_timeout).
Add a configfs attribute so that user can set the io timeout values.
In case if this configfs value is not set nvme_alloc_request() will set
the NVME_IO_TIMEOUT value when request queuedata is NULL.
Signed-off-by: Chaitanya Kulkarni <chaitanya.kulkarni@wdc.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
NVMeOF controller in the passsthru mode is capable of handling wide set
of admin commands including vender specific passhtru admin comands.
The vendor specific admin commands are used to read the large drive
logs and can take longer than default NVMe commands, i.e. for
passthru requests the timeout value may differ from the passthru
controller's default timeout values (nvme-core:admin_timeout).
Add a configfs attribute so that user can set the admin timeout values.
In case if this configfs value is not set nvme_alloc_request() will set
the ADMIN_TIMEOUT value when request queuedata is NULL.
Signed-off-by: Chaitanya Kulkarni <chaitanya.kulkarni@wdc.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
This is purely a clenaup patch, add prefix NVME to the ADMIN_TIMEOUT to
make consistent with NVME_IO_TIMEOUT.
Signed-off-by: Chaitanya Kulkarni <chaitanya.kulkarni@wdc.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
The function nvme_alloc_request() is called from different context
(I/O and Admin queue) where callers do not consider the I/O timeout when
called from I/O queue context.
Update nvme_alloc_request() to set the default I/O and Admin timeout
value based on whether the queuedata is set or not.
Signed-off-by: Chaitanya Kulkarni <chaitanya.kulkarni@wdc.com>
Reviewed-by: Sagi Grimberg <sagi@grimberg.me>
Signed-off-by: Christoph Hellwig <hch@lst.de>
Use the request's '->mq_hctx->queue_num' directly to simplify the
nvme_req_qid() function.
Signed-off-by: Baolin Wang <baolin.wang@linux.alibaba.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
Add sysfs attribute to specify parameters for dropping a command. The
attribute takes a string of:
<opcode>:<starting a what instance>:<number of times>
Opcode is formatted as lower 8 bits are opcode. If a fabrics opcode, a
bit above bits 7:0 will be set.
Once set, each sqe is looked at. If the opcode matches the running
instance count is updated. If the instance count is in the range of where
to drop (based on starting and # of times), then drop the command by not
passing it to the target layer.
Signed-off-by: James Smart <james.smart@broadcom.com>
Use the human readable device name instead of the device number, and
add the required best_effort parameter.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: WeiXiong Liao <gmpy.liaowx@gmail.com>
Reviewed-by: Kees Cook <keescook@chromium.org>
Signed-off-by: Kees Cook <keescook@chromium.org>
Link: https://lore.kernel.org/r/20201016132047.3068029-3-hch@lst.de
Introduce an abritrary 128MiB cap to avoid malloc failures when using
a larger block device.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: WeiXiong Liao <gmpy.liaowx@gmail.com>
Reviewed-by: Kees Cook <keescook@chromium.org>
Signed-off-by: Kees Cook <keescook@chromium.org>
Link: https://lore.kernel.org/r/20201016132047.3068029-2-hch@lst.de
Document that /proc/PID/smaps shows PROT_MTE settings in VmFlags.
Support for this was introduced in
commit 9f3419315f
arm64: mte: Add PROT_MTE support to mmap() and mprotect()
Signed-off-by: Szabolcs Nagy <szabolcs.nagy@arm.com>
Reviewed-by: Catalin Marinas <catalin.marinas@arm.com>
Cc: linux-doc@vger.kernel.org
Link: https://lore.kernel.org/r/20201106101940.5777-1-szabolcs.nagy@arm.com
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
It turns out that usage of skb extensions can cause memory leaks. Ido
Schimmel reported: "[...] there are instances that blindly overwrite
'skb->extensions' by invoking skb_copy_header() after __alloc_skb()."
Therefore, give up on using skb extensions for KCOV handle, and instead
directly store kcov_handle in sk_buff.
Fixes: 6370cc3bbd ("net: add kcov handle to skb extensions")
Fixes: 85ce50d337 ("net: kcov: don't select SKB_EXTENSIONS when there is no NET")
Fixes: 97f53a08cb ("net: linux/skbuff.h: combine SKB_EXTENSIONS + KCOV handling")
Link: https://lore.kernel.org/linux-wireless/20201121160941.GA485907@shredder.lan/
Reported-by: Ido Schimmel <idosch@idosch.org>
Signed-off-by: Marco Elver <elver@google.com>
Link: https://lore.kernel.org/r/20201125224840.2014773-1-elver@google.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Functions tfilter_notify_chain() and tcf_get_next_proto() are always called
with rtnl lock held in current implementation. Moreover, attempting to call
them without rtnl lock would cause a warning down the call chain in
function __tcf_get_next_proto() that requires the lock to be held by
callers. Remove the 'rtnl_held' argument in order to simplify the code and
make rtnl lock requirement explicit.
Signed-off-by: Vlad Buslov <vladbu@nvidia.com>
Link: https://lore.kernel.org/r/20201127151205.23492-1-vladbu@nvidia.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Daniel added a warning for this, but we were abusing that behavior here.
Signed-off-by: Christian König <christian.koenig@amd.com>
Fixes: 57fcd550eb ("drm/ttm: Warn on pinning without holding a reference")
Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: https://patchwork.freedesktop.org/series/84456/
Thomas Falcon says:
====================
ibmvnic: Bug fixes for queue descriptor processing
This series resolves a few issues in the ibmvnic driver's
RX buffer and TX completion processing. The first patch
includes memory barriers to synchronize queue descriptor
reads. The second patch fixes a memory leak that could
occur if the device returns a TX completion with an error
code in the descriptor, in which case the respective socket
buffer and other relevant data structures may not be freed
or updated properly.
v3: Correct length of Fixes tags, requested by Jakub Kicinski
v2: Provide more detailed comments explaining specifically what
reads are being ordered, suggested by Michael Ellerman
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
TX completions received with an error return code are not
being processed properly. When an error code is seen, do not
proceed to the next completion before cleaning up the existing
entry's data structures.
Fixes: 032c5e8284 ("Driver for IBM System i/p VNIC protocol")
Signed-off-by: Thomas Falcon <tlfalcon@linux.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Ensure that received Subordinate Command-Response Queue (SCRQ)
entries are properly read in order by the driver. These queues
are used in the ibmvnic device to process RX buffer and TX completion
descriptors. dma_rmb barriers have been added after checking for a
pending descriptor to ensure the correct descriptor entry is checked
and after reading the SCRQ descriptor to ensure the entire
descriptor is read before processing.
Fixes: 032c5e8284 ("Driver for IBM System i/p VNIC protocol")
Signed-off-by: Thomas Falcon <tlfalcon@linux.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
commit 22ada802ed ("block: use lcm_not_zero() when stacking
chunk_sectors") broke chunk_sectors limit stacking. chunk_sectors must
reflect the most limited of all devices in the IO stack.
Otherwise malformed IO may result. E.g.: prior to this fix,
->chunk_sectors = lcm_not_zero(8, 128) would result in
blk_max_size_offset() splitting IO at 128 sectors rather than the
required more restrictive 8 sectors.
And since commit 07d098e6bb ("block: allow 'chunk_sectors' to be
non-power-of-2") care must be taken to properly stack chunk_sectors to
be compatible with the possibility that a non-power-of-2 chunk_sectors
may be stacked. This is why gcd() is used instead of reverting back
to using min_not_zero().
Fixes: 22ada802ed ("block: use lcm_not_zero() when stacking chunk_sectors")
Fixes: 07d098e6bb ("block: allow 'chunk_sectors' to be non-power-of-2")
Reported-by: John Dorminy <jdorminy@redhat.com>
Reported-by: Bruce Johnston <bjohnsto@redhat.com>
Signed-off-by: Mike Snitzer <snitzer@redhat.com>
Reviewed-by: John Dorminy <jdorminy@redhat.com>
Cc: stable@vger.kernel.org
Reviewed-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
The gpiochip may have dependencies from pinmux and so got deferred. Now it
will print error message every time -EPROBE_DEFER is returned which is
unnecessary:
"gpiochip_add_data_with_key: GPIOs 0..31 (gpio-0-31) failed to register, -517"
Hence, do suppress error message for -EPROBE_DEFER case.
Signed-off-by: Grygorii Strashko <grygorii.strashko@ti.com>
Signed-off-by: Bartosz Golaszewski <bgolaszewski@baylibre.com>
Currently, if an MCE happens in user-mode or while the kernel is copying
data from user space, 'kill_it' is used to check if execution of the
interrupted task can be recovered or not; the flag name however is not
very meaningful, hence rename it to match its goal.
[ bp: Massage commit message, rename the queue_task_work() arg too. ]
Signed-off-by: Gabriele Paoloni <gabriele.paoloni@intel.com>
Signed-off-by: Borislav Petkov <bp@suse.de>
Link: https://lkml.kernel.org/r/20201127161819.3106432-6-gabriele.paoloni@intel.com
After commit 74d905d2d3 devices requiring the workaround for edge
triggered interrupts stopped working.
The hardware needs the quirk to be used before even proceeding to
check if the quirk is needed because mxt_acquire_irq() is called
before mxt_check_retrigen() is called and at this point pending IRQs
need to be checked, and if the workaround is not active, all
interrupts will be lost from this point.
Solve this by switching the calls around.
Reported-by: Andre Müller <andre.muller@web.de>
Tested-by: Andre Müller <andre.muller@web.de>
Suggested-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Fixes: 74d905d2d3 ("Input: atmel_mxt_ts - only read messages in mxt_acquire_irq() when necessary")
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Cc: stable@vger.kernel.org
Link: https://lore.kernel.org/r/20201201123026.1416743-1-linus.walleij@linaro.org
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Currently, __mc_scan_banks() in do_machine_check() does the following
callchain:
__mc_scan_banks()->mce_log()->irq_work_queue(&mce_irq_work).
Hence, the call to irq_work_queue() below after __mc_scan_banks()
seems redundant. Just remove it.
Signed-off-by: Gabriele Paoloni <gabriele.paoloni@intel.com>
Signed-off-by: Borislav Petkov <bp@suse.de>
Reviewed-by: Tony Luck <tony.luck@intel.com>
Link: https://lkml.kernel.org/r/20201127161819.3106432-5-gabriele.paoloni@intel.com
Simplify registration using new devm_fpga_mgr_register() API.
Reviewed-by: Tom Rix <trix@redhat.com>
Signed-off-by: Moritz Fischer <mdf@kernel.org>
Link: https://lore.kernel.org/r/20201115195127.284487-11-mdf@kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Simplify registration using new devm_fpga_mgr_register() API.
Reviewed-by: Tom Rix <trix@redhat.com>
Signed-off-by: Moritz Fischer <mdf@kernel.org>
Link: https://lore.kernel.org/r/20201115195127.284487-10-mdf@kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Simplify registration using new devm_fpga_mgr_register() API.
Reviewed-by: Tom Rix <trix@redhat.com>
Signed-off-by: Moritz Fischer <mdf@kernel.org>
Link: https://lore.kernel.org/r/20201115195127.284487-9-mdf@kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Simplify registration using new devm_fpga_mgr_register() API.
Reviewed-by: Tom Rix <trix@redhat.com>
Signed-off-by: Moritz Fischer <mdf@kernel.org>
Link: https://lore.kernel.org/r/20201115195127.284487-8-mdf@kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Simplify registration using new devm_fpga_mgr_register() API.
Reviewed-by: Tom Rix <trix@redhat.com>
Signed-off-by: Moritz Fischer <mdf@kernel.org>
Link: https://lore.kernel.org/r/20201115195127.284487-7-mdf@kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Simplify registration using new devm_fpga_mgr_register() API.
Reviewed-by: Tom Rix <trix@redhat.com>
Signed-off-by: Moritz Fischer <mdf@kernel.org>
Link: https://lore.kernel.org/r/20201115195127.284487-6-mdf@kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Simplify registration using new devm_fpga_mgr_register() API.
Reviewed-by: Tom Rix <trix@redhat.com>
Signed-off-by: Moritz Fischer <mdf@kernel.org>
Link: https://lore.kernel.org/r/20201115195127.284487-5-mdf@kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Simplify registration using new devm_fpga_mgr_register() API.
Reviewed-by: Tom Rix <trix@redhat.com>
Signed-off-by: Moritz Fischer <mdf@kernel.org>
Link: https://lore.kernel.org/r/20201115195127.284487-4-mdf@kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Simplify registration by using new devm_fpga_mgr_register() API.
Reviewed-by: Tom Rix <trix@redhat.com>
Signed-off-by: Moritz Fischer <mdf@kernel.org>
Link: https://lore.kernel.org/r/20201115195127.284487-3-mdf@kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Add a devm_fpga_mgr_register() API that can be used to register a FPGA
Manager that was created using devm_fpga_mgr_create().
Introduce a struct fpga_mgr_devres that makes the devres
allocation a little bit more readable and gets reused for
devm_fpga_mgr_create() devm_fpga_mgr_register().
Reviewed-by: Tom Rix <trix@redhat.com>
Signed-off-by: Moritz Fischer <mdf@kernel.org>
Link: https://lore.kernel.org/r/20201115195127.284487-2-mdf@kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Right now for LMCE, if no_way_out is set, mce_panic() is called
regardless of mca_cfg.tolerant. This is not correct as, if
mca_cfg.tolerant = 3, the code should never panic.
Add that check.
[ bp: use local ptr 'cfg'. ]
Signed-off-by: Gabriele Paoloni <gabriele.paoloni@intel.com>
Signed-off-by: Borislav Petkov <bp@suse.de>
Reviewed-by: Tony Luck <tony.luck@intel.com>
Link: https://lkml.kernel.org/r/20201127161819.3106432-4-gabriele.paoloni@intel.com
Because dfl.c uses the 'devm_ioremap', 'devm_iounmap',
'devm_ioremap_resource', and 'devm_platform_ioremap_resource'
functions, it should depend on HAS_IOMEM.
This fixes make allyesconfig under UML (ARCH=um), which doesn't provide
HAS_IOMEM.
[mdf@kernel.org: Removed "drivers: " in commit message]
Fixes: 89eb35e810 ("fpga: dfl: map feature mmio resources in their own feature drivers")
Signed-off-by: David Gow <davidgow@google.com>
Signed-off-by: Moritz Fischer <mdf@kernel.org>
Link: https://lore.kernel.org/r/20201122001549.107023-2-mdf@kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Right now, for local MCEs the machine calls panic(), if needed, right
after lmce is set. For MCE broadcasting, mce_reign() takes care of
calling mce_panic().
Hence:
- improve readability by moving the conditional evaluation of
tolerant up to when kill_it is set first;
- move the mce_panic() call up into the statement where mce_end()
fails.
[ bp: Massage, remove comment in the mce_end() failure case because it
is superfluous; use local ptr 'cfg' in both tests. ]
Signed-off-by: Gabriele Paoloni <gabriele.paoloni@intel.com>
Signed-off-by: Borislav Petkov <bp@suse.de>
Reviewed-by: Tony Luck <tony.luck@intel.com>
Link: https://lkml.kernel.org/r/20201127161819.3106432-3-gabriele.paoloni@intel.com
Purely conjecture, but I think the original locking inversion with the
legacy page flip code between flipping and ttm's bo move function
shoudn't exist anymore with atomic: With atomic the bo pinning and
actual modeset commit is completely separated in the code patsh.
This annotation was originally added in
commit 060810d7ab
Author: Ben Skeggs <bskeggs@redhat.com>
Date: Mon Jul 8 14:15:51 2013 +1000
drm/nouveau: fix locking issues in page flipping paths
due to
commit b580c9e2b7
Author: Maarten Lankhorst <m.b.lankhorst@gmail.com>
Date: Thu Jun 27 13:48:18 2013 +0200
drm/nouveau: make flipping lockdep safe
Acked-by: Ben Skeggs <bskeggs@redhat.com>
Reviewed-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
Cc: Maarten Lankhorst <m.b.lankhorst@gmail.com>
Cc: Ben Skeggs <bskeggs@redhat.com>
Cc: Dave Airlie <airlied@gmail.com>
Cc: nouveau@lists.freedesktop.org
Link: https://patchwork.freedesktop.org/patch/msgid/20201127163528.2221671-1-daniel.vetter@ffwll.ch
Fix to return a negative error code from the error handling
case instead of 0, as done elsewhere in this function.
Fixes: 5c49fd3aa0 ("gma500: Add the core DRM files and headers")
Reported-by: Hulk Robot <hulkci@huawei.com>
Signed-off-by: Jialin Zhang <zhangjialin11@huawei.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: https://patchwork.freedesktop.org/patch/msgid/20201130020216.1906141-1-zhangjialin11@huawei.com
Add the calculations to set plane selective fetch registers depending
in the value of the area damaged.
It is still using the whole plane area as damaged but that will change
in next patches.
v2:
- fixed new_plane_state->uapi.dst.y2 typo in
intel_psr2_sel_fetch_update()
- do not shifthing new_plane_state->uapi.dst only src is in 16.16 format
BSpec: 55229
Cc: Gwan-gyeong Mun <gwan-gyeong.mun@intel.com>
Cc: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: José Roberto de Souza <jose.souza@intel.com>
Reviewed-by: Gwan-gyeong Mun <gwan-gyeong.mun@intel.com>
Tested-by: Gwan-gyeong Mun <gwan-gyeong.mun@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20201130125750.17820-1-jose.souza@intel.com
ACPICA commit 090f0444238bd49f563bf80f4f3a863463dfdf78
Version 20201113.
Link: https://github.com/acpica/acpica/commit/090f0444
Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Erik Kaneda <erik.kaneda@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
ACPICA commit 52d1da5dcbd79a722b70f02a1a83f04088f51ff6
There was a memory leak that ocurred when a _CID object is defined as
a package containing string objects. When _CID is checked for any
possible repairs, it calls a helper function to repair _HID (because
_CID basically contains multiple _HID entries).
The _HID repair function assumes that string objects are standalone
objects that are not contained inside of any packages. The _HID
repair function replaces the string object with a brand new object
and attempts to delete the old object by decrementing the reference
count of the old object. Strings inside of packages have a reference
count of 2 so the _HID repair function leaves this object in a
dangling state and causes a memory leak.
Instead of allocating a brand new object and removing the old object,
use the existing object when repairing the _HID object.
Link: https://github.com/acpica/acpica/commit/52d1da5d
Signed-off-by: Erik Kaneda <erik.kaneda@intel.com>
Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
ACPICA commit 87b8dba05b4cf8c111948327023c710e2b6b5a05
The namespace repair mechanism does not have function tracing macros.
Add several trace macros to improve debuggability.
Link: https://github.com/acpica/acpica/commit/87b8dba0
Signed-off-by: Erik Kaneda <erik.kaneda@intel.com>
Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
ACPICA commit b9dc31e2fc67cf196fab5253a9a673bee68b2ef5
Before this commit acpi_ev_execute_reg_methods() had special handling
to handle "orphan" (no matching op_region declared) _REG methods for EC
nodes.
On Intel Cherry Trail devices there are 2 possible ACPI op_regions for
accessing GPIOs. The standard general_purpose_io op_region and the Cherry
Trail specific user_defined 0x9X op_regions.
Having 2 different types of op_regions leads to potential issues with
checks for op_region availability, or in other words checks if _REG has
been called for the op_region which the ACPI code wants to use.
Except for the "orphan" EC handling, ACPICA core does not call _REG on
an ACPI node which does not define an op_region matching the type being
registered; and the reference design DSDT, from which most Cherry Trail
DSDTs are derived, does not define general_purpose_io, nor user_defined(0x93)
op_regions for the GPO2 (UID 3) device, because no pins were assigned ACPI
controlled functions in the reference design.
Together this leads to the perfect storm, at least on the Cherry Trail
based Medion Akayo E1239T. This design does use a GPO2 pin from its ACPI
code and has added the Cherry Trail specific user_defined(0x93) opregion
to its GPO2 ACPI node to access this pin.
But it uses a has _REG been called availability check for the standard
general_purpose_io op_region. This clearly is a bug in the DSDT, but this
does work under Windows. This issue leads to the intel_vbtn driver
reporting the device always being in tablet-mode at boot, even if it
is in laptop mode. Which in turn causes userspace to ignore touchpad
events. So iow this issues causes the touchpad to not work at boot.
This commit fixes this by extending the "orphan" _REG method handling
to also apply to GPIO address-space handlers.
Note it seems that Windows always calls "orphan" _REG methods so me
may want to consider dropping the space-id check and always do
"orphan" _REG method handling.
Link: https://github.com/acpica/acpica/commit/b9dc31e2
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Erik Kaneda <erik.kaneda@intel.com>
Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
ACPICA commit f6eae3961bf39ad8beda70c001d1815780600e39
There are several ocurrances of "the the", remove the extraneous
"the".
Link: https://github.com/acpica/acpica/commit/f6eae396
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Erik Kaneda <erik.kaneda@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
All UUID entries are related to NVDIMM and the NFIT table.
ACPICA commit c114a02798dd07ccc7e51ffa4365bf039a0dd8d5
Link: https://github.com/acpica/acpica/commit/c114a027
Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Erik Kaneda <erik.kaneda@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
