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AJvYcCUmMgauXMUpo0h0qZGVRDOYbqOqdoaL9Gifjq/Eft3e7sO0eHkeHjFzwdxkETGUjUZ9ZGECc6oIHtcuw6MS7doB@lists.infradead.org X-Gm-Message-State: AOJu0Yx+yWO5VBZS/4gI1rSwWFpo5QhRCeAi0oCZoEMEDrvG20BOkwQ4 57AiHZdB5ASSfIx/IWkcRXLvWh4NgAOTmMxeJqCTn0KVFh8gO88kbjn1+HjkWKI6xDGLU/S6n21 xd95A6U3jpMTh3Hbysw== X-Google-Smtp-Source: AGHT+IHrlol7Anpnd920uxfnTbedTgfOoLRdg3g5Rtafipisfy+CH2cN56NbbUf6MkXF303FuBbETzycPNKV+61W X-Received: from manojvishy.c.googlers.com ([fda3:e722:ac3:cc00:20:ed76:c0a8:413f]) (user=manojvishy job=sendgmr) by 2002:a25:ad5d:0:b0:e16:50d2:3d36 with SMTP id 3f1490d57ef6-e17a86208demr247806276.7.1724656613663; Mon, 26 Aug 2024 00:16:53 -0700 (PDT) Date: Mon, 26 Aug 2024 07:16:38 +0000 In-Reply-To: <20240826071641.2691374-1-manojvishy@google.com> Mime-Version: 1.0 References: <20240826071641.2691374-1-manojvishy@google.com> X-Mailer: git-send-email 2.46.0.295.g3b9ea8a38a-goog Message-ID: <20240826071641.2691374-2-manojvishy@google.com> Subject: [PATCH v1 1/4] iommu: Add IOMMU_SYS_CACHE flag for system cache control From: Manoj Vishwanathan To: Will Deacon , Robin Murphy , Joerg Roedel , Alex Williamson , linux-arm-kernel@lists.infradead.org Cc: kvm@vger.kernel.org, iommu@lists.linux.dev, linux-kernel@vger.kernel.org, David Dillow , Manoj Vishwanathan X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20240826_001656_033246_99A17D80 X-CRM114-Status: GOOD ( 10.35 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org This flag indicates whether the associated page should be cached in the system's cache hierarchy. Signed-off-by: Manoj Vishwanathan --- include/linux/iommu.h | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/include/linux/iommu.h b/include/linux/iommu.h index 04cbdae0052e..ca895c83c24f 100644 --- a/include/linux/iommu.h +++ b/include/linux/iommu.h @@ -31,6 +31,12 @@ */ #define IOMMU_PRIV (1 << 5) +/* + * Flag to indicate whether the associated page should be cached in the + * system's cache hierarchy. + */ +#define IOMMU_SYS_CACHE (1 << 6) + struct iommu_ops; struct iommu_group; struct bus_type;