From: Gregory Price <gourry@gourry.net>
To: Ira Weiny <ira.weiny@intel.com>
Cc: linux-mm@kvack.org, linux-acpi@vger.kernel.org,
kernel-team@meta.com, x86@kernel.org,
linux-kernel@vger.kernel.org, dave.hansen@linux.intel.com,
luto@kernel.org, peterz@infradead.org, tglx@linutronix.de,
mingo@redhat.com, bp@alien8.de, hpa@zytor.com, rafael@kernel.org,
lenb@kernel.org, david@redhat.com, osalvador@suse.de,
gregkh@linuxfoundation.org, akpm@linux-foundation.org,
dan.j.williams@intel.com, Jonathan.Cameron@huawei.com,
alison.schofield@intel.com, rrichter@amd.com, rppt@kernel.org,
bfaccini@nvidia.com, haibo1.xu@intel.com, dave.jiang@intel.com,
Fan Ni <fan.ni@samsung.com>
Subject: Re: [RESEND v7 3/3] acpi,srat: give memory block size advice based on CFMWS alignment
Date: Mon, 13 Jan 2025 16:06:31 -0500 [thread overview]
Message-ID: <Z4WAV_xvz2ltbo4H@gourry-fedora-PF4VCD3F> (raw)
In-Reply-To: <67857eaa6e284_1863f329487@iweiny-mobl.notmuch>
On Mon, Jan 13, 2025 at 02:59:22PM -0600, Ira Weiny wrote:
> Gregory Price wrote:
> > + /* Align memblock size to CFMW regions if possible */
> > + align = 1UL << __ffs(start | end);
> > + if (align >= SZ_256M) {
> > + if (memory_block_advise_max_size(align) < 0)
> > + pr_warn("CFMWS: memblock size advise failed\n");
>
> I wonder if it would be good to print the return value here so the user
> knows why this failed?
>
As someone who is often annoyed by this exact pattern, I am apparently
just as guilty at producing it *facepalm*
I'll pick this up and push it tomorrow.
> But either way.
>
> Reviewed-by: Ira Weiny <ira.weiny@intel.com>
>
> > + } else {
> > + pr_err("CFMWS: [BIOS BUG] base/size alignment violates spec\n");
> > + }
> > +
> > /*
> > * The SRAT may have already described NUMA details for all,
> > * or a portion of, this CFMWS HPA range. Extend the memblks
> > --
> > 2.47.1
> >
> >
>
>
prev parent reply other threads:[~2025-01-13 21:06 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-01-13 17:44 [RESEND v7 0/3] memory,x86,acpi: hotplug memory alignment advisement Gregory Price
2025-01-13 17:44 ` [RESEND v7 1/3] memory: implement memory_block_advise/probe_max_size Gregory Price
2025-01-13 20:51 ` Ira Weiny
2025-01-13 17:44 ` [RESEND v7 2/3] x86: probe memory block size advisement value during mm init Gregory Price
2025-01-13 20:56 ` Ira Weiny
2025-01-13 17:44 ` [RESEND v7 3/3] acpi,srat: give memory block size advice based on CFMWS alignment Gregory Price
2025-01-13 19:10 ` Rafael J. Wysocki
2025-01-13 20:59 ` Ira Weiny
2025-01-13 21:06 ` Gregory Price [this message]
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