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From: Qian Cai <quic_qiancai@quicinc.com>
To: Mark Brown <broonie@kernel.org>
Cc: Catalin Marinas <catalin.marinas@arm.com>,
	Will Deacon <will@kernel.org>,  Marc Zyngier <maz@kernel.org>,
	Shuah Khan <skhan@linuxfoundation.org>,
	"Shuah Khan" <shuah@kernel.org>,
	Basant Kumar Dwivedi <Basant.KumarDwivedi@arm.com>,
	 Luis Machado <luis.machado@arm.com>,
	Szabolcs Nagy <szabolcs.nagy@arm.com>,
	<linux-arm-kernel@lists.infradead.org>,
	<linux-kselftest@vger.kernel.org>,
	Alan Hayward <alan.hayward@arm.com>,
	<kvmarm@lists.cs.columbia.edu>,
	"Salil Akerkar" <Salil.Akerkar@arm.com>,
	Luca Salabrino <luca.scalabrino@arm.com>
Subject: Re: [PATCH v14 00/39] arm64/sme: Initial support for the Scalable Matrix Extension
Date: Tue, 3 May 2022 18:23:40 -0400	[thread overview]
Message-ID: <YnGrbEt3oBBTly7u@qian> (raw)
In-Reply-To: <20220419112247.711548-1-broonie@kernel.org>

On Tue, Apr 19, 2022 at 12:22:08PM +0100, Mark Brown wrote:
> This series provides initial support for the ARMv9 Scalable Matrix
> Extension (SME).  SME takes the approach used for vectors in SVE and
> extends this to provide architectural support for matrix operations.  A
> more detailed overview can be found in [1].

Set CONFIG_ARM64_SME=n fixed a warning while running libhugetlbfs tests.

        /*
         * There are several places where we assume that the order value is sane
         * so bail out early if the request is out of bound.
         */
        if (unlikely(order >= MAX_ORDER)) {
                WARN_ON_ONCE(!(gfp & __GFP_NOWARN));
                return NULL;
        }

 WARNING: CPU: 122 PID: 4025 at mm/page_alloc.c:5383 __alloc_pages
 CPU: 122 PID: 4025 Comm: brk_near_huge Not tainted 5.18.0-rc5-next-20220503 #79
 pstate: 20400009 (nzCv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--)
 pc : __alloc_pages
 lr : alloc_pages
 sp : ffff8000505470f0
 x29: ffff8000505470f0 x28: ffff40028b3535c0 x27: 0000000000000000
 x26: 1ffff0000a0a8ea2 x25: ffff800050547510 x24: 0000000000000dc0
 x23: ffff921ddb818000 x22: 000000000000000e x21: 1ffff0000a0a8e28
 x20: 0000000000040dc0 x19: ffffae1848c61ae0 x18: ffffae18357e7d24
 x17: ffffae182fb75778 x16: 1fffe8005166a7d8 x15: 000000000000001a
 x14: 1fffe8005166a7cb x13: 0000000000000004 x12: ffff70000a0a8e03
 x11: 1ffff0000a0a8e02 x10: 00000000f204f1f1 x9 : 000000000000f204
 x8 : dfff800000000000 x7 : 00000000f3000000 x6 : 00000000f3f3f3f3
 x5 : ffff70000a0a8e28 x4 : ffff40028b3535c0 x3 : 0000000000000000
 x2 : 0000000000000001 x1 : 0000000000000001 x0 : 0000000000040dc0
 Call trace:
  __alloc_pages
  alloc_pages
  kmalloc_order
  kmalloc_order_trace
  __kmalloc
  __regset_get
  regset_get_alloc
  fill_thread_core_info
  fill_note_info
  elf_core_dump
  do_coredump
  get_signal
  do_signal
  do_notify_resume
  el0_svc
  el0t_64_sync_handler
  el0t_64_sync
 irq event stamp: 28066
 hardirqs last  enabled at (28065):  _raw_spin_unlock_irqrestore
 hardirqs last disabled at (28066):  el1_dbg
 softirqs last  enabled at (27438):  fpsimd_preserve_current_state
 softirqs last disabled at (27436):  fpsimd_preserve_current_state

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  parent reply	other threads:[~2022-05-03 22:24 UTC|newest]

Thread overview: 59+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2022-04-19 11:22 [PATCH v14 00/39] arm64/sme: Initial support for the Scalable Matrix Extension Mark Brown
2022-04-19 11:22 ` [PATCH v14 01/39] kselftest/arm64: Fix comment for ptrace_sve_get_fpsimd_data() Mark Brown
2022-04-19 11:22 ` [PATCH v14 02/39] kselftest/arm64: Remove assumption that tasks start FPSIMD only Mark Brown
2022-04-19 11:22 ` [PATCH v14 03/39] kselftest/arm64: Validate setting via FPSIMD and read via SVE regsets Mark Brown
2022-04-19 11:22 ` [PATCH v14 04/39] arm64/sme: Provide ABI documentation for SME Mark Brown
2022-04-28  9:19   ` Catalin Marinas
2022-05-03  8:13     ` Szabolcs Nagy
2022-04-19 11:22 ` [PATCH v14 05/39] arm64/sme: System register and exception syndrome definitions Mark Brown
2022-04-19 11:22 ` [PATCH v14 06/39] arm64/sme: Manually encode SME instructions Mark Brown
2022-04-19 11:22 ` [PATCH v14 07/39] arm64/sme: Early CPU setup for SME Mark Brown
2022-04-19 11:22 ` [PATCH v14 08/39] arm64/sme: Basic enumeration support Mark Brown
2022-04-19 11:22 ` [PATCH v14 09/39] arm64/sme: Identify supported SME vector lengths at boot Mark Brown
2022-04-19 11:22 ` [PATCH v14 10/39] arm64/sme: Implement sysctl to set the default vector length Mark Brown
2022-04-19 11:22 ` [PATCH v14 11/39] arm64/sme: Implement vector length configuration prctl()s Mark Brown
2022-04-19 11:22 ` [PATCH v14 12/39] arm64/sme: Implement support for TPIDR2 Mark Brown
2022-04-19 11:22 ` [PATCH v14 13/39] arm64/sme: Implement SVCR context switching Mark Brown
2022-04-19 11:22 ` [PATCH v14 14/39] arm64/sme: Implement streaming SVE " Mark Brown
2022-04-19 11:22 ` [PATCH v14 15/39] arm64/sme: Implement ZA " Mark Brown
2022-04-19 11:22 ` [PATCH v14 16/39] arm64/sme: Implement traps and syscall handling for SME Mark Brown
2022-04-22 16:28   ` Catalin Marinas
2022-12-07 14:00   ` Zenghui Yu
2022-12-07 14:16     ` Mark Brown
2022-12-08  2:15       ` Zenghui Yu
2022-04-19 11:22 ` [PATCH v14 17/39] arm64/sme: Disable ZA and streaming mode when handling signals Mark Brown
2022-04-19 11:22 ` [PATCH v14 18/39] arm64/sme: Implement streaming SVE signal handling Mark Brown
2022-04-19 11:22 ` [PATCH v14 19/39] arm64/sme: Implement ZA " Mark Brown
2022-04-19 11:22 ` [PATCH v14 20/39] arm64/sme: Implement ptrace support for streaming mode SVE registers Mark Brown
2022-04-19 11:22 ` [PATCH v14 21/39] arm64/sme: Add ptrace support for ZA Mark Brown
2022-04-19 11:22 ` [PATCH v14 22/39] arm64/sme: Disable streaming mode and ZA when flushing CPU state Mark Brown
2022-04-19 11:22 ` [PATCH v14 23/39] arm64/sme: Save and restore streaming mode over EFI runtime calls Mark Brown
2022-04-19 11:22 ` [PATCH v14 24/39] KVM: arm64: Hide SME system registers from guests Mark Brown
2022-04-19 11:22 ` [PATCH v14 25/39] KVM: arm64: Trap SME usage in guest Mark Brown
2022-04-19 11:22 ` [PATCH v14 26/39] KVM: arm64: Handle SME host state when running guests Mark Brown
2022-04-19 11:22 ` [PATCH v14 27/39] arm64/sme: Provide Kconfig for SME Mark Brown
2022-04-26 22:14   ` Marek Szyprowski
2022-04-27 12:55     ` Mark Brown
2022-04-19 11:22 ` [PATCH v14 28/39] kselftest/arm64: Add manual encodings for SME instructions Mark Brown
2022-04-19 11:22 ` [PATCH v14 29/39] kselftest/arm64: sme: Add SME support to vlset Mark Brown
2022-04-19 11:22 ` [PATCH v14 30/39] kselftest/arm64: Add tests for TPIDR2 Mark Brown
2022-04-19 11:22 ` [PATCH v14 31/39] kselftest/arm64: Extend vector configuration API tests to cover SME Mark Brown
2022-04-19 11:22 ` [PATCH v14 32/39] kselftest/arm64: sme: Provide streaming mode SVE stress test Mark Brown
2022-04-19 11:22 ` [PATCH v14 33/39] kselftest/arm64: signal: Handle ZA signal context in core code Mark Brown
2022-04-19 11:22 ` [PATCH v14 34/39] kselftest/arm64: Add stress test for SME ZA context switching Mark Brown
2022-04-19 11:22 ` [PATCH v14 35/39] kselftest/arm64: signal: Add SME signal handling tests Mark Brown
2022-04-19 11:22 ` [PATCH v14 36/39] kselftest/arm64: Add streaming SVE to SVE ptrace tests Mark Brown
2022-04-19 11:22 ` [PATCH v14 37/39] kselftest/arm64: Add coverage for the ZA ptrace interface Mark Brown
2022-04-19 11:22 ` [PATCH v14 38/39] kselftest/arm64: Add SME support to syscall ABI test Mark Brown
2022-04-19 11:22 ` [PATCH v14 39/39] selftests/arm64: Add a testcase for handling of ZA on clone() Mark Brown
2022-04-22 17:10 ` [PATCH v14 00/39] arm64/sme: Initial support for the Scalable Matrix Extension Marc Zyngier
2022-04-22 18:35   ` Catalin Marinas
2022-04-22 18:26 ` (subset) " Catalin Marinas
2022-04-27 17:08 ` Qian Cai
2022-04-27 17:14   ` Mark Brown
2022-04-27 21:08     ` Qian Cai
2022-04-27 22:13       ` Mark Brown
2022-05-03 22:23 ` Qian Cai [this message]
2022-05-03 23:52   ` Mark Brown
2022-05-04  5:25     ` Naresh Kamboju
2022-05-04  7:49     ` Naresh Kamboju

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