linux-kernel - Re: [PATCH v5 06/22] drivers/perf: riscv: Implement SBI PMU snapshot function

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Date: Thu, 4 Apr 2024 14:01:58 +0200
From: Andrew Jones <ajones@...tanamicro.com>
To: Atish Patra <atishp@...osinc.com>
Cc: linux-kernel@...r.kernel.org, Palmer Dabbelt <palmer@...osinc.com>, 
	Anup Patel <anup@...infault.org>, Conor Dooley <conor.dooley@...rochip.com>, 
	Ajay Kaher <akaher@...are.com>, Alexandre Ghiti <alexghiti@...osinc.com>, 
	Alexey Makhalov <amakhalov@...are.com>, Juergen Gross <jgross@...e.com>, kvm-riscv@...ts.infradead.org, 
	kvm@...r.kernel.org, linux-kselftest@...r.kernel.org, linux-riscv@...ts.infradead.org, 
	Mark Rutland <mark.rutland@....com>, Palmer Dabbelt <palmer@...belt.com>, 
	Paolo Bonzini <pbonzini@...hat.com>, Paul Walmsley <paul.walmsley@...ive.com>, 
	Shuah Khan <shuah@...nel.org>, virtualization@...ts.linux.dev, 
	VMware PV-Drivers Reviewers <pv-drivers@...are.com>, Will Deacon <will@...nel.org>, x86@...nel.org
Subject: Re: [PATCH v5 06/22] drivers/perf: riscv: Implement SBI PMU snapshot
 function

On Wed, Apr 03, 2024 at 01:04:35AM -0700, Atish Patra wrote:
..
> +static int pmu_sbi_snapshot_disable(void)
> +{
> +	struct sbiret ret;
> +
> +	ret = sbi_ecall(SBI_EXT_PMU, SBI_EXT_PMU_SNAPSHOT_SET_SHMEM, -1,
> +			-1, 0, 0, 0, 0);

The "Rename the SBI_STA_SHMEM_DISABLE" patch should come before this
patch so SBI_SHMEM_DISABLE can be used instead of the -1's here.

Thanks,
drew