linux-kernel - [PATCH 0/2] x86/pat: fix querying available caching modes

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Date:   Tue,  3 May 2022 15:22:05 +0200
From:   Juergen Gross <jgross@...e.com>
To:     xen-devel@...ts.xenproject.org, x86@...nel.org,
        linux-kernel@...r.kernel.org, intel-gfx@...ts.freedesktop.org,
        dri-devel@...ts.freedesktop.org
Cc:     jbeulich@...e.com, Juergen Gross <jgross@...e.com>,
        Dave Hansen <dave.hansen@...ux.intel.com>,
        Andy Lutomirski <luto@...nel.org>,
        Peter Zijlstra <peterz@...radead.org>,
        Thomas Gleixner <tglx@...utronix.de>,
        Ingo Molnar <mingo@...hat.com>, Borislav Petkov <bp@...en8.de>,
        "H. Peter Anvin" <hpa@...or.com>,
        Jani Nikula <jani.nikula@...ux.intel.com>,
        Joonas Lahtinen <joonas.lahtinen@...ux.intel.com>,
        Rodrigo Vivi <rodrigo.vivi@...el.com>,
        Tvrtko Ursulin <tvrtko.ursulin@...ux.intel.com>,
        David Airlie <airlied@...ux.ie>,
        Daniel Vetter <daniel@...ll.ch>
Subject: [PATCH 0/2] x86/pat: fix querying available caching modes

Fix some issues with querying caching modes being available for memory
mappings.

This is a replacement for the patch of Jan sent recently:

https://lists.xen.org/archives/html/xen-devel/2022-04/msg02392.html

Juergen Gross (2):
  x86/pat: fix x86_has_pat_wp()
  x86/pat: add functions to query specific cache mode availability

 arch/x86/include/asm/memtype.h           |  2 ++
 arch/x86/include/asm/pci.h               |  2 +-
 arch/x86/mm/init.c                       | 24 ++++++++++++++++++++++--
 drivers/gpu/drm/i915/gem/i915_gem_mman.c |  8 ++++----
 4 files changed, 29 insertions(+), 7 deletions(-)

-- 
2.35.3