Commit Graph

1201956 Commits

Author SHA1 Message Date
Radhakrishna Sripada
86b53032b1 drm/i915/mtl: Fix SSC selection for MPLLA
Driver does not clear the default SSC for MPLLA. This causes link training
failure when trying to use 10G and 20G rates. Fix the behaviour and enable
ssc only when we really want.

Fixes: 237e7be0bf ("drm/i915/mtl: For DP2.0 10G and 20G rates use MPLLA")
Cc: Mika Kahola <mika.kahola@intel.com>
Cc: Clint Taylor <Clinton.A.Taylor@intel.com>
Cc: Khaled Almahallawy <khaled.almahallawy@intel.com>
Cc: Arun R Murthy <arun.r.murthy@intel.com>
Signed-off-by: Radhakrishna Sripada <radhakrishna.sripada@intel.com>
Tested-by: Khaled Almahallawy <khaled.almahallawy@intel.com>
Reviewed-by: Mika Kahola <mika.kahola@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20230616043950.1576836-1-radhakrishna.sripada@intel.com
(cherry picked from commit 7e8d87e2da)
Signed-off-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
2023-06-26 09:17:43 +01:00
Imre Deak
a6b4229d85 drm/i915/adlp+: Allow DC states along with PW2 only for PWB functionality
A recent bspec update added a restriction on when DC states can be enabled:

[Before enabling DC states:]

"""
PG2 can be kept enabled only because PGB requires PG2.
Do not use PG2 functions, such as type-C DDIs.

DMC will dynamically control PG1, PGA, PG2, PGB.
"""

Accordingly prevent DC states if PW2 (aka PG2) is enabled for any other
functionality.

Bpsec: 49193

Fixes: 88c4879384 ("drm/i915: Use separate "DC off" power well for ADL-P and DG2")
Reported-by: Kai Vehmanen <kai.vehmanen@intel.com>
Tested-by: Ambica Pramod <ambica.pramod@intel.com>
Reviewed-by: Uma Shankar <uma.shankar@intel.com>
Signed-off-by: Imre Deak <imre.deak@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20230606172822.1891897-1-imre.deak@intel.com
(cherry picked from commit f4e498eb12)
Signed-off-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
2023-06-26 09:17:39 +01:00
Herbert Xu
3867caee49 crypto: sm2 - Provide sm2_compute_z_digest when sm2 is disabled
When sm2 is disabled we need to provide an implementation of
sm2_compute_z_digest.

Fixes: e5221fa6a3 ("KEYS: asymmetric: Move sm2 code into x509_public_key")
Reported-by: kernel test robot <lkp@intel.com>
Closes: https://lore.kernel.org/oe-kbuild-all/202306231917.utO12sx8-lkp@intel.com/
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2023-06-26 16:14:01 +08:00
Boris Brezillon
db8b4968a8 drm/sched: Call drm_sched_fence_set_parent() from drm_sched_fence_scheduled()
Drivers that can delegate waits to the firmware/GPU pass the scheduled
fence to drm_sched_job_add_dependency(), and issue wait commands to
the firmware/GPU at job submission time. For this to be possible, they
need all their 'native' dependencies to have a valid parent since this
is where the actual HW fence information are encoded.

In drm_sched_main(), we currently call drm_sched_fence_set_parent()
after drm_sched_fence_scheduled(), leaving a short period of time
during which the job depending on this fence can be submitted.

Since setting parent and signaling the fence are two things that are
kinda related (you can't have a parent if the job hasn't been scheduled),
it probably makes sense to pass the parent fence to
drm_sched_fence_scheduled() and let it call drm_sched_fence_set_parent()
before it signals the scheduled fence.

Here is a detailed description of the race we are fixing here:

Thread A				Thread B

- calls drm_sched_fence_scheduled()
- signals s_fence->scheduled which
  wakes up thread B

					- entity dep signaled, checking
					  the next dep
					- no more deps waiting
					- entity is picked for job
					  submission by drm_gpu_scheduler
					- run_job() is called
					- run_job() tries to
					  collect native fence info from
					  s_fence->parent, but it's
					  NULL =>
					  BOOM, we can't do our native
					  wait

- calls drm_sched_fence_set_parent()

v2:
* Fix commit message

v3:
* Add a detailed description of the race to the commit message
* Add Luben's R-b

Signed-off-by: Boris Brezillon <boris.brezillon@collabora.com>
Cc: Frank Binns <frank.binns@imgtec.com>
Cc: Sarah Walker <sarah.walker@imgtec.com>
Cc: Donald Robson <donald.robson@imgtec.com>
Cc: Luben Tuikov <luben.tuikov@amd.com>
Cc: David Airlie <airlied@gmail.com>
Cc: Daniel Vetter <daniel@ffwll.ch>
Cc: Sumit Semwal <sumit.semwal@linaro.org>
Cc: "Christian König" <christian.koenig@amd.com>
Reviewed-by: Luben Tuikov <luben.tuikov@amd.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20230623075204.382350-1-boris.brezillon@collabora.com
2023-06-26 09:45:25 +02:00
Binbin Zhou
e47084e116 MIPS: Loongson64: DTS: Add RTC support to Loongson-2K1000
The module is now supported, enable it.

Acked-by: Jiaxun Yang <jiaxun.yang@flygoat.com>
Signed-off-by: Binbin Zhou <zhoubinbin@loongson.cn>
Signed-off-by: WANG Xuerui <git@xen0n.name>
Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
2023-06-26 09:18:43 +02:00
Binbin Zhou
8a649e33f4 MIPS: Loongson64: DTS: Add RTC support to LS7A PCH
The RTC module is now supported, enable it.

Acked-by: Jiaxun Yang <jiaxun.yang@flygoat.com>
Signed-off-by: Binbin Zhou <zhoubinbin@loongson.cn>
Signed-off-by: WANG Xuerui <git@xen0n.name>
Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
2023-06-26 09:18:26 +02:00
Randy Dunlap
b58d6d89ae
Documentation: PCI: correct spelling
Correct spelling problems for Documentation/PCI/ as reported
by codespell.

Link: https://lore.kernel.org/linux-pci/20230209071400.31476-14-rdunlap@infradead.org
Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Signed-off-by: Krzysztof Wilczyński <kwilczynski@kernel.org>
Acked-by: Bjorn Helgaas <bhelgaas@google.com>
2023-06-26 06:48:48 +00:00
Andrew Halaney
fa155f4f83 OPP: Use dev_err_probe() when failing to get icc_path
This, in tandem with dynamic debug, can print useful information about
-EPROBE_DEFFER like below, and keeps similar behavior for other errors:

    [   16.561072] cpu cpu0: error -EPROBE_DEFER: dev_pm_opp_of_find_icc_paths: Unable to get path0
    [   16.575777] platform 18591000.cpufreq: deferred probe pending

Signed-off-by: Andrew Halaney <ahalaney@redhat.com>
Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
2023-06-26 12:10:26 +05:30
Andrew Halaney
5ee6425028 cpufreq: qcom-cpufreq-hw: Use dev_err_probe() when failing to get icc paths
This way, if there's an issue (in this case a -EPROBE_DEFER), you can
get useful output:

    [root@dhcp19-243-150 ~]# cat /sys/kernel/debug/devices_deferred
    18591000.cpufreq        qcom-cpufreq-hw: Failed to find icc paths

Signed-off-by: Andrew Halaney <ahalaney@redhat.com>
Reviewed-by: Bjorn Andersson <quic_bjorande@quicinc.com>
Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
2023-06-26 12:09:47 +05:30
Florian Westphal
a412dbf40f netfilter: nf_tables: limit allowed range via nla_policy
These NLA_U32 types get stored in u8 fields, reject invalid values
instead of silently casting to u8.

Signed-off-by: Florian Westphal <fw@strlen.de>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
2023-06-26 08:05:57 +02:00
Phil Sutter
079cd63321 netfilter: nf_tables: Introduce NFT_MSG_GETSETELEM_RESET
Analogous to NFT_MSG_GETOBJ_RESET, but for set elements with a timeout
or attached stateful expressions like counters or quotas - reset them
all at once. Respect a per element timeout value if present to reset the
'expires' value to.

Signed-off-by: Phil Sutter <phil@nwl.cc>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
2023-06-26 08:05:57 +02:00
Florian Westphal
4589725502 netfilter: snat: evict closing tcp entries on reply tuple collision
When all tried source tuples are in use, the connection request (skb)
and the new conntrack will be dropped in nf_confirm() due to the
non-recoverable clash.

Make it so that the last 32 attempts are allowed to evict a colliding
entry if this connection is already closing and the new sequence number
has advanced past the old one.

Such "all tuples taken" secenario can happen with tcp-rpc workloads where
same dst:dport gets queried repeatedly.

Signed-off-by: Florian Westphal <fw@strlen.de>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
2023-06-26 08:05:57 +02:00
Florian Westphal
96b2ef9b16 netfilter: nf_tables: permit update of set size
Now that set->nelems is always updated permit update of the sets max size.

Signed-off-by: Florian Westphal <fw@strlen.de>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
2023-06-26 08:05:57 +02:00
Florian Westphal
78aa23d008 netfilter: ipset: remove rcu_read_lock_bh pair from ip_set_test
Callers already hold rcu_read_lock.

Prior to RCU conversion this used to be a read_lock_bh(), but now the
bh-disable isn't needed anymore.

Cc: Jozsef Kadlecsik <kadlec@blackhole.kfki.hu>
Signed-off-by: Florian Westphal <fw@strlen.de>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
2023-06-26 08:05:56 +02:00
Pablo Neira Ayuso
de6843be30 netfilter: nft_payload: rebuild vlan header when needed
Skip rebuilding the vlan header when accessing destination and source
mac address.

Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
2023-06-26 08:05:45 +02:00
Arnd Bergmann
fb9b7b4b2b x86: xen: add missing prototypes
These function are all called from assembler files, or from inline
assembler, so there is no immediate need for a prototype in a header,
but if -Wmissing-prototypes is enabled, the compiler warns about them:

arch/x86/xen/efi.c:130:13: error: no previous prototype for 'xen_efi_init' [-Werror=missing-prototypes]
arch/x86/platform/pvh/enlighten.c:120:13: error: no previous prototype for 'xen_prepare_pvh' [-Werror=missing-prototypes]
arch/x86/xen/enlighten_pv.c:1233:34: error: no previous prototype for 'xen_start_kernel' [-Werror=missing-prototypes]
arch/x86/xen/irq.c:22:14: error: no previous prototype for 'xen_force_evtchn_callback' [-Werror=missing-prototypes]
arch/x86/entry/common.c:302:24: error: no previous prototype for 'xen_pv_evtchn_do_upcall' [-Werror=missing-prototypes]

Declare all of them in an appropriate header file to avoid the warnings.
For consistency, also move the asm_cpu_bringup_and_idle() declaration
out of smp_pv.c.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Juergen Gross <jgross@suse.com>
Reviewed-by: Boris Ostrovsky <boris.ostrovsky@oracle.com>
Link: https://lore.kernel.org/r/20230614073501.10101-3-jgross@suse.com
Signed-off-by: Juergen Gross <jgross@suse.com>
2023-06-26 07:47:11 +02:00
Juergen Gross
3d013424de x86/xen: add prototypes for paravirt mmu functions
The paravirt MMU functions called via the PV_CALLEE_SAVE_REGS_THUNK()
macro can't be defined to be static, as the macro is generating a
function via asm() statement calling the paravirt MMU function.

In order to avoid warnings when specifying "-Wmissing-prototypes" for
the build, add local prototypes (there should never be any external
caller of those functions).

Reported-by: Arnd Bergmann <arnd@kernel.org>
Signed-off-by: Juergen Gross <jgross@suse.com>
Reviewed-by: Boris Ostrovsky <boris.ostrovsky@oracle.com>
Link: https://lore.kernel.org/r/20230614073501.10101-2-jgross@suse.com
Signed-off-by: Juergen Gross <jgross@suse.com>
2023-06-26 07:47:11 +02:00
Ross Lagerwall
9338c2233b iscsi_ibft: Fix finding the iBFT under Xen Dom 0
To facilitate diskless iSCSI boot, the firmware can place a table of
configuration details in memory called the iBFT. The presence of this
table is not specified, nor is the precise location (and it's not in the
E820) so the kernel has to search for a magic marker to find it.

When running under Xen, Dom 0 does not have access to the entire host's
memory, only certain regions which are identity-mapped which means that
the pseudo-physical address in Dom0 == real host physical address.
Add the iBFT search bounds as a reserved region which causes it to be
identity-mapped in xen_set_identity_and_remap_chunk() which allows Dom0
access to the specific physical memory to correctly search for the iBFT
magic marker (and later access the full table).

This necessitates moving the call to reserve_ibft_region() somewhat
later so that it is called after e820__memory_setup() which is when the
Xen identity mapping adjustments are applied. The precise location of
the call is not too important so I've put it alongside dmi_setup() which
does similar scanning of memory for configuration tables.

Finally in the iBFT find code, instead of using isa_bus_to_virt() which
doesn't do the right thing under Xen, use early_memremap() like the
dmi_setup() code does.

The result of these changes is that it is possible to boot a diskless
Xen + Dom0 running off an iSCSI disk whereas previously it would fail to
find the iBFT and consequently, the iSCSI root disk.

Signed-off-by: Ross Lagerwall <ross.lagerwall@citrix.com>
Reviewed-by: Juergen Gross <jgross@suse.com>
Acked-by: Konrad Rzeszutek Wilk <konrad@darnok.org>
Acked-by: Dave Hansen <dave.hansen@linux.intel.com> # for x86
Link: https://lore.kernel.org/r/20230605102840.1521549-1-ross.lagerwall@citrix.com
Signed-off-by: Juergen Gross <jgross@suse.com>
2023-06-26 07:47:11 +02:00
Arnd Bergmann
04d684875b xen: xen_debug_interrupt prototype to global header
The xen_debug_interrupt() function is only called on x86, which has a
prototype in an architecture specific header, but the definition also
exists on others, where the lack of a prototype causes a W=1 warning:

drivers/xen/events/events_2l.c:264:13: error: no previous prototype for 'xen_debug_interrupt' [-Werror=missing-prototypes]

Move the prototype into a global header instead to avoid this warning.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Reviewed-by: Stefano Stabellini <sstabellini@kernel.org>
Link: https://lore.kernel.org/r/20230517124525.929201-1-arnd@kernel.org
Signed-off-by: Juergen Gross <jgross@suse.com>
2023-06-26 07:47:11 +02:00
Gustavo A. R. Silva
11d5e2061e ksmbd: Replace one-element array with flexible-array member
One-element arrays are deprecated, and we are replacing them with flexible
array members instead. So, replace one-element array with flexible-array
member in struct smb_negotiate_req.

This results in no differences in binary output.

Link: https://github.com/KSPP/linux/issues/79
Link: https://github.com/KSPP/linux/issues/317
Signed-off-by: Gustavo A. R. Silva <gustavoars@kernel.org>
Reviewed-by: Kees Cook <keescook@chromium.org>
Acked-by: Namjae Jeon <linkinjeon@kernel.org>
Reviewed-by: Sergey Senozhatsky <senozhatsky@chromium.org>
Signed-off-by: Steve French <stfrench@microsoft.com>
2023-06-26 00:07:04 -05:00
Gustavo A. R. Silva
5211cc8727 ksmbd: Use struct_size() helper in ksmbd_negotiate_smb_dialect()
Prefer struct_size() over open-coded versions.

Link: https://github.com/KSPP/linux/issues/160
Signed-off-by: Gustavo A. R. Silva <gustavoars@kernel.org>
Reviewed-by: Kees Cook <keescook@chromium.org>
Acked-by: Namjae Jeon <linkinjeon@kernel.org>
Reviewed-by: Sergey Senozhatsky <senozhatsky@chromium.org>
Signed-off-by: Steve French <stfrench@microsoft.com>
2023-06-26 00:07:04 -05:00
Namjae Jeon
7b7d709ef7 ksmbd: add missing compound request handing in some commands
This patch add the compound request handling to the some commands.
Existing clients do not send these commands as compound requests,
but ksmbd should consider that they may come.

Cc: stable@vger.kernel.org
Signed-off-by: Namjae Jeon <linkinjeon@kernel.org>
Signed-off-by: Steve French <stfrench@microsoft.com>
2023-06-26 00:07:04 -05:00
Namjae Jeon
98422bdd4c ksmbd: fix out of bounds read in smb2_sess_setup
ksmbd does not consider the case of that smb2 session setup is
in compound request. If this is the second payload of the compound,
OOB read issue occurs while processing the first payload in
the smb2_sess_setup().

Cc: stable@vger.kernel.org
Reported-by: zdi-disclosures@trendmicro.com # ZDI-CAN-21355
Signed-off-by: Namjae Jeon <linkinjeon@kernel.org>
Signed-off-by: Steve French <stfrench@microsoft.com>
2023-06-26 00:07:04 -05:00
Lu Hongfei
f65fadb042 ksmbd: Replace the ternary conditional operator with min()
It would be better to replace the traditional ternary conditional
operator with min() in compare_sids.

Signed-off-by: Lu Hongfei <luhongfei@vivo.com>
Acked-by: Namjae Jeon <linkinjeon@kernel.org>
Signed-off-by: Steve French <stfrench@microsoft.com>
2023-06-26 00:07:04 -05:00
Namjae Jeon
81a94b2784 ksmbd: use kvzalloc instead of kvmalloc
Use kvzalloc instead of kvmalloc.

Reported-by: kernel test robot <lkp@intel.com>
Signed-off-by: Namjae Jeon <linkinjeon@kernel.org>
Signed-off-by: Steve French <stfrench@microsoft.com>
2023-06-26 00:07:04 -05:00
Lu Hongfei
ccb5889af9 ksmbd: Change the return value of ksmbd_vfs_query_maximal_access to void
The return value of ksmbd_vfs_query_maximal_access is meaningless,
it is better to modify it to void.

Signed-off-by: Lu Hongfei <luhongfei@vivo.com>
Acked-by: Namjae Jeon <linkinjeon@kernel.org>
Signed-off-by: Steve French <stfrench@microsoft.com>
2023-06-26 00:07:04 -05:00
Namjae Jeon
cf5e7f734f ksmbd: return a literal instead of 'err' in ksmbd_vfs_kern_path_locked()
Return a literal instead of 'err' in ksmbd_vfs_kern_path_locked().

Reported-by: Dan Carpenter <dan.carpenter@linaro.org>
Signed-off-by: Namjae Jeon <linkinjeon@kernel.org>
Signed-off-by: Steve French <stfrench@microsoft.com>
2023-06-26 00:07:04 -05:00
Namjae Jeon
f87d4f85f4 ksmbd: use kzalloc() instead of __GFP_ZERO
Use kzalloc() instead of __GFP_ZERO.

Reported-by: Dan Carpenter <error27@gmail.com>
Signed-off-by: Namjae Jeon <linkinjeon@kernel.org>
Reviewed-by: Sergey Senozhatsky <senozhatsky@chromium.org>
Signed-off-by: Steve French <stfrench@microsoft.com>
2023-06-26 00:07:04 -05:00
Namjae Jeon
7bd9f0876f ksmbd: remove unused ksmbd_tree_conn_share function
Remove unused ksmbd_tree_conn_share function.

Signed-off-by: Namjae Jeon <linkinjeon@kernel.org>
Reviewed-by: Sergey Senozhatsky <senozhatsky@chromium.org>
Signed-off-by: Steve French <stfrench@microsoft.com>
2023-06-26 00:07:04 -05:00
Gaurav Batra
d61cd13e73 powerpc/iommu: TCEs are incorrectly manipulated with DLPAR add/remove of memory
When memory is dynamically added/removed, iommu_mem_notifier() is invoked. This
routine traverses through all the DMA windows (DDW only, not default windows)
to add/remove "direct" TCE mappings. The routines for this purpose are
tce_clearrange_multi_pSeriesLP() and tce_clearrange_multi_pSeriesLP().

Both these routines are designed for Direct mapped DMA windows only.

The issue is that there could be some DMA windows in the list which are not
"direct" mapped. Calling these routines will either,

1) remove some dynamically mapped TCEs, Or
2) try to add TCEs which are out of bounds and HCALL returns H_PARAMETER

Here are the side affects when these routines are incorrectly invoked for
"dynamically" mapped DMA windows.

tce_setrange_multi_pSeriesLP()

This adds direct mapped TCEs. Now, this could invoke HCALL to add TCEs with
out-of-bound range. In this scenario, HCALL will return H_PARAMETER and DLAR
ADD of memory will fail.

tce_clearrange_multi_pSeriesLP()

This will remove range of TCEs. The TCE range that is calculated, depending on
the memory range being added, could infact be mapping some other memory
address (for dynamic DMA window scenario). This will wipe out those TCEs.

The solution is for iommu_mem_notifier() to only invoke these routines for
"direct" mapped DMA windows.

Signed-off-by: Gaurav Batra <gbatra@linux.vnet.ibm.com>
Reviewed-by: Brian King <brking@linux.vnet.ibm.com>
[mpe: Initialise direct at allocation time in ddw_list_new_entry()]
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://msgid.link/20230613171641.15641-1-gbatra@linux.vnet.ibm.com
2023-06-26 14:57:31 +10:00
Dan Williams
0c0df63177 Merge branch 'for-6.5/cxl-rch-eh' into for-6.5/cxl
Pick up the first half of the RCH error handling series. The back half
needs some fixups for test regressions. Small conflicts with the PMU
work around register enumeration and setup helpers.
2023-06-25 18:56:13 -07:00
Dan Williams
d2f9fe6953 Merge branch 'for-6.5/cxl-perf' into for-6.5/cxl
Pick up initial support for the CXL 3.0 performance monitoring
definition. Small conflicts with the firmware update work as they both
placed their init code in the same location.
2023-06-25 17:53:18 -07:00
Jonathan Cameron
c2b34d4422 docs: perf: Minimal introduction the the CXL PMU device and driver
Very basic introduction to the device and the current driver support
provided. I expect to expand on this in future versions of this patch
set.

Reviewed-by: Dave Jiang <dave.jiang@intel.com>
Reviewed-by: Kan Liang <kan.liang@linux.intel.com>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Link: https://lore.kernel.org/r/20230526095824.16336-6-Jonathan.Cameron@huawei.com
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
2023-06-25 17:47:09 -07:00
Jonathan Cameron
5d7107c727 perf: CXL Performance Monitoring Unit driver
CXL rev 3.0 introduces a standard performance monitoring hardware
block to CXL. Instances are discovered using CXL Register Locator DVSEC
entries. Each CXL component may have multiple PMUs.

This initial driver supports a subset of types of counter.
It supports counters that are either fixed or configurable, but requires
that they support the ability to freeze and write value whilst frozen.

Development done with QEMU model which will be posted shortly.

Example:

$ perf stat -a -e cxl_pmu_mem0.0/h2d_req_snpcur/ -e cxl_pmu_mem0.0/h2d_req_snpdata/ -e cxl_pmu_mem0.0/clock_ticks/ sleep 1

Performance counter stats for 'system wide':

96,757,023,244,321      cxl_pmu_mem0.0/h2d_req_snpcur/
96,757,023,244,365      cxl_pmu_mem0.0/h2d_req_snpdata/
193,514,046,488,653      cxl_pmu_mem0.0/clock_ticks/

       1.090539600 seconds time elapsed

Reviewed-by: Dave Jiang <dave.jiang@intel.com>
Reviewed-by: Kan Liang <kan.liang@linux.intel.com>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Link: https://lore.kernel.org/r/20230526095824.16336-5-Jonathan.Cameron@huawei.com
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
2023-06-25 17:47:09 -07:00
Dan Williams
e2c18eb50c Merge branch 'for-6.5/cxl-region-fixes' into for-6.5/cxl
Pick up the recent fixes to how CPU caches are managed relative to
region setup / teardown, and make sure that all decoders transition
successfully before updating the region state from COMMIT => ACTIVE.
2023-06-25 17:23:50 -07:00
Dan Williams
aeaefabc59 Merge branch 'for-6.5/cxl-type-2' into for-6.5/cxl
Pick up the driver cleanups identified in preparation for CXL "type-2"
(accelerator) device support. The major change here from a conflict
generation perspective is the split of 'struct cxl_memdev_state' from
the core 'struct cxl_dev_state'. Since an accelerator may not care about
all the optional features that are standard on a CXL "type-3" (host-only
memory expander) device.

A silent conflict also occurs with the move of the endpoint port to be a
formal property of a 'struct cxl_memdev' rather than drvdata.
2023-06-25 17:16:51 -07:00
Nick Desaulniers
f7584322e4
riscv: disable HAVE_LD_DEAD_CODE_DATA_ELIMINATION for LLD
Linking allyesconfig with ld.lld-17 with CONFIG_DEAD_CODE_ELIMINATION=y
takes hours.  Assuming this is a performance regression that can be
fixed, tentatively disable this for now so that allyesconfig builds
don't start timing out.  If and when there's a fix to ld.lld, this can
be converted to a version check instead so that users of older but still
supported versions of ld.lld don't hurt themselves by enabling
CONFIG_LD_DEAD_CODE_DATA_ELIMINATION=y.

Link: https://github.com/ClangBuiltLinux/linux/issues/1881
Link: https://lore.kernel.org/linux-riscv/ZJXTwqZIkXLxXaSi@google.com/
Reported-by: Palmer Dabbelt <palmer@dabbelt.com>
Suggested-by: Nathan Chancellor <nathan@kernel.org>
Signed-off-by: Nick Desaulniers <ndesaulniers@google.com>
Signed-off-by: Palmer Dabbelt <palmer@rivosinc.com>
2023-06-25 16:30:50 -07:00
Linus Torvalds
6995e2de68 Linux 6.4 2023-06-25 16:29:58 -07:00
Zhangjin Wu
c828856b51
riscv: enable HAVE_LD_DEAD_CODE_DATA_ELIMINATION
Select CONFIG_HAVE_LD_DEAD_CODE_DATA_ELIMINATION for RISC-V, allowing
the user to enable dead code elimination. In order for this to work,
ensure that we keep the alternative table by annotating them with KEEP.

This boots well on qemu with both rv32_defconfig & rv64 defconfig, but
it only shrinks their builds by ~1%, a smaller config is thereforce
customized to test this feature:

          | rv32                   | rv64
  --------|------------------------|---------------------
   No DCE | 4460684                | 4893488
      DCE | 3986716                | 4376400
   Shrink |  473968 (~10.6%)       |  517088 (~10.5%)

The config used above only reserves necessary options to boot on qemu
with serial console, more like the size-critical embedded scenes:

  - rv64 config: https://pastebin.com/crz82T0s
  - rv32 config: rv64 config + 32-bit.config

Here is Jisheng's original commit-msg:
When trying to run linux with various opensource riscv core on
resource limited FPGA platforms, for example, those FPGAs with less
than 16MB SDRAM, I want to save mem as much as possible. One of the
major technologies is kernel size optimizations, I found that riscv
does not currently support HAVE_LD_DEAD_CODE_DATA_ELIMINATION, which
passes -fdata-sections, -ffunction-sections to CFLAGS and passes the
--gc-sections flag to the linker.

This not only benefits my case on FPGA but also benefits defconfigs.
Here are some notable improvements from enabling this with defconfigs:

nommu_k210_defconfig:
   text    data     bss     dec     hex
1112009  410288   59837 1582134  182436     before
 962838  376656   51285 1390779  1538bb     after

rv32_defconfig:
   text    data     bss     dec     hex
8804455 2816544  290577 11911576 b5c198     before
8692295 2779872  288977 11761144 b375f8     after

defconfig:
   text    data     bss     dec     hex
9438267 3391332  485333 13314932 cb2b74     before
9285914 3350052  483349 13119315 c82f53     after

Signed-off-by: Zhangjin Wu <falcon@tinylab.org>
Co-developed-by: Jisheng Zhang <jszhang@kernel.org>
Signed-off-by: Jisheng Zhang <jszhang@kernel.org>
Reviewed-by: Guo Ren <guoren@kernel.org>
Tested-by: Bin Meng <bmeng@tinylab.org>
Reviewed-by: Kefeng Wang <wangkefeng.wang@huawei.com>
Tested-by: Nick Desaulniers <ndesaulniers@google.com> # build
Link: https://lore.kernel.org/r/20230523165502.2592-5-jszhang@kernel.org
Signed-off-by: Palmer Dabbelt <palmer@rivosinc.com>
2023-06-25 16:24:05 -07:00
Jisheng Zhang
d4035ff16b
vmlinux.lds.h: use correct .init.data.* section name
If building with -fdata-sections on riscv, LD_ORPHAN_WARN will warn
similar as below:

riscv64-linux-gnu-ld: warning: orphan section `.init.data.efi_loglevel'
from `./drivers/firmware/efi/libstub/printk.stub.o' being placed in
section `.init.data.efi_loglevel'

I believe this is caused by a a typo:
init.data.* should be .init.data.*

Signed-off-by: Jisheng Zhang <jszhang@kernel.org>
Reviewed-by: Kefeng Wang <wangkefeng.wang@huawei.com>
Tested-by: Nick Desaulniers <ndesaulniers@google.com> # build
Link: https://lore.kernel.org/r/20230523165502.2592-4-jszhang@kernel.org
Signed-off-by: Palmer Dabbelt <palmer@rivosinc.com>
2023-06-25 16:24:04 -07:00
Jisheng Zhang
cead443a30
riscv: vmlinux-xip.lds.S: remove .alternative section
ALTERNATIVE mechanism can't work on XIP, and this is also reflected by
below Kconfig dependency:

RISCV_ALTERNATIVE
	...
	depends on !XIP_KERNEL
	...

So there's no .alternative section at all for XIP case, remove it.

Signed-off-by: Jisheng Zhang <jszhang@kernel.org>
Reviewed-by: Conor Dooley <conor.dooley@microchip.com>
Reviewed-by: Guo Ren <guoren@kernel.org>
Tested-by: Nick Desaulniers <ndesaulniers@google.com> # build
Link: https://lore.kernel.org/r/20230523165502.2592-3-jszhang@kernel.org
Signed-off-by: Palmer Dabbelt <palmer@rivosinc.com>
2023-06-25 16:24:03 -07:00
Jisheng Zhang
ab7fa6b05e
riscv: move options to keep entries sorted
Recently, some commits break the entries order. Properly move their
locations to keep entries sorted.

Signed-off-by: Jisheng Zhang <jszhang@kernel.org>
Reviewed-by: Conor Dooley <conor.dooley@microchip.com>
Acked-by: Guo Ren <guoren@kernel.org>
Tested-by: Nick Desaulniers <ndesaulniers@google.com> # build
Link: https://lore.kernel.org/r/20230523165502.2592-2-jszhang@kernel.org
Signed-off-by: Palmer Dabbelt <palmer@rivosinc.com>
2023-06-25 16:24:02 -07:00
Binbin Zhou
1b733a9ebc rtc: Add rtc driver for the Loongson family chips
The Loongson family chips use an on-chip counter 0 (Time Of Year
counter) as the RTC. We will refer to them as rtc-loongson.

Cc: Keguang Zhang <keguang.zhang@gmail.com>
Cc: Yang Ling <gnaygnil@gmail.com>
Cc: Jiaxun Yang <jiaxun.yang@flygoat.com>
Signed-off-by: Binbin Zhou <zhoubinbin@loongson.cn>
Signed-off-by: Huacai Chen <chenhuacai@kernel.org>
Signed-off-by: WANG Xuerui <git@xen0n.name>
Reviewed-by: Keguang Zhang <keguang.zhang@gmail.com>
Tested-by: Keguang Zhang <keguang.zhang@gmail.com>
Reviewed-by: Jiaxun Yang <jiaxun.yang@flygoat.com>
Tested-by: Jiaxun Yang <jiaxun.yang@flygoat.com> # LS7A
Link: https://lore.kernel.org/r/0c5171156390f614d72f36ceb04a20f432ca639e.1685693501.git.zhoubinbin@loongson.cn
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
2023-06-26 01:19:11 +02:00
Binbin Zhou
9fb2309065 rtc: Remove the Loongson-1 RTC driver
Remove the ls1x-rtc driver as it is obsolete. We will continue to
support the ls1x RTC in the upcoming Loongson unified RTC driver
rtc-loongson.

Cc: Keguang Zhang <keguang.zhang@gmail.com>
Cc: zhao zhang <zhzhl555@gmail.com>
Cc: Yang Ling <gnaygnil@gmail.com>
Signed-off-by: Binbin Zhou <zhoubinbin@loongson.cn>
Acked-by: Keguang Zhang <keguang.zhang@gmail.com>
Link: https://lore.kernel.org/r/c38c666015a162d7031b20a48209ce577bab62cd.1685693501.git.zhoubinbin@loongson.cn
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
2023-06-26 01:19:11 +02:00
Binbin Zhou
487ef32cae dt-bindings: rtc: Split loongson,ls2x-rtc into SoC-based compatibles
Move Loongson RTC bindings from trivial-rtc.yaml into loongson,rtc.yaml.

The architectures associated with this driver use the built-in DTB, so
we can just drop the compatible(rtc-ls2x) with wildcards.
Also, soc-based compatible is more accurate for hardware differences
between chips.

Signed-off-by: Binbin Zhou <zhoubinbin@loongson.cn>
Reviewed-by: Conor Dooley <conor.dooley@microchip.com>
Link: https://lore.kernel.org/r/1b0bb443bd74647c17b7902f3d719700f81a1dba.1685693501.git.zhoubinbin@loongson.cn
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
2023-06-26 01:19:03 +02:00
Dan Williams
867eab655d Merge branch 'for-6.5/cxl-fwupd' into for-6.5/cxl
Add the first typical (non-sanitization) consumer of the new background
command infrastructure, firmware update. Given both firmware-update and
sanitization were developed in parallel from the common
background-command baseline, resolve some minor context conflicts.
2023-06-25 16:12:26 -07:00
Johannes Kirchmair
7e2a60efab rtc: rv3028: make rv3028 probeable from userspace
With this commit, it will be possible to bind a rv3028 device from
userspace

This is done by:
echo rtc-rv3028 0x52 > /sys/bus/i2c/devices/i2c-XX/new_device

Signed-off-by: Johannes Kirchmair <johannes.kirchmair@sigmatek.at>
Link: https://lore.kernel.org/r/20230327085550.1721861-1-johannes.kirchmair@sigmatek.at
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
2023-06-26 01:05:13 +02:00
Dan Williams
dcfb70610d Merge branch 'for-6.5/cxl-background' into for-6.5/cxl
Pick up the sanitization work and the infrastructure for other
background commands for 6.5. Sanitization has a different completion
path than typical background commands so it was important to have both
thought out and implemented before either went upstream.
2023-06-25 16:01:45 -07:00
Vishal Verma
f6448cb5f2 tools/testing/cxl: add firmware update emulation to CXL memdevs
Add emulation for the 'Get FW Info', 'Transfer FW', and 'Activate FW'
CXL mailbox commands to the cxl_test emulated memdevs to enable
end-to-end unit testing of a firmware update flow. For now, only
advertise an 'offline activation' capability as that is all the CXL
memdev driver currently implements.

Add some canned values for the serial number fields, and create a
platform device sysfs knob to calculate the sha256sum of the firmware
image that was received, so a unit test can compare it with the original
file that was uploaded.

Cc: Davidlohr Bueso <dave@stgolabs.net>
Cc: Jonathan Cameron <Jonathan.Cameron@Huawei.com>
Cc: Russ Weight <russell.h.weight@intel.com>
Cc: Alison Schofield <alison.schofield@intel.com>
Cc: Ira Weiny <ira.weiny@intel.com>
Cc: Dave Jiang <dave.jiang@intel.com>
Cc: Ben Widawsky <bwidawsk@kernel.org>
Cc: Dan Williams <dan.j.williams@intel.com>
Reviewed-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Reviewed-by: Dave Jiang <dave.jiang@intel.com>
Signed-off-by: Vishal Verma <vishal.l.verma@intel.com>
Link: https://lore.kernel.org/r/20230602-vv-fw_update-v4-4-c6265bd7343b@intel.com
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
2023-06-25 15:58:40 -07:00
Vishal Verma
6e4ca04af7 tools/testing/cxl: Use named effects for the Command Effect Log
As more emulated mailbox commands are added to cxl_test, it is a pain
point to look up command effect numbers for each effect. Replace the
bare numbers in the mock driver with an enum that lists all possible
effects.

Cc: Davidlohr Bueso <dave@stgolabs.net>
Cc: Jonathan Cameron <Jonathan.Cameron@Huawei.com>
Cc: Russ Weight <russell.h.weight@intel.com>
Cc: Alison Schofield <alison.schofield@intel.com>
Cc: Ira Weiny <ira.weiny@intel.com>
Cc: Dave Jiang <dave.jiang@intel.com>
Cc: Ben Widawsky <bwidawsk@kernel.org>
Cc: Dan Williams <dan.j.williams@intel.com>
Suggested-by: Jonathan Cameron <Jonathan.Cameron@Huawei.com>
Reviewed-by: Alison Schofield <alison.schofield@intel.com>
Reviewed-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Reviewed-by: Dave Jiang <dave.jiang@intel.com>
Signed-off-by: Vishal Verma <vishal.l.verma@intel.com>
Link: https://lore.kernel.org/r/20230602-vv-fw_update-v4-3-c6265bd7343b@intel.com
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
2023-06-25 15:58:40 -07:00