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Tue, 12 Sep 2023 07:18:55 -0700 (PDT) Date: Tue, 12 Sep 2023 14:16:31 +0000 In-Reply-To: <20230912141549.278777-63-ardb@google.com> Mime-Version: 1.0 References: <20230912141549.278777-63-ardb@google.com> X-Developer-Key: i=ardb@kernel.org; a=openpgp; fpr=F43D03328115A198C90016883D200E9CA6329909 X-Developer-Signature: v=1; a=openpgp-sha256; l=974; i=ardb@kernel.org; h=from:subject; bh=3RIbQ+ir09pn35apY5Qp22tjlJ+wR04ahdGMYRgLFlQ=; b=owGbwMvMwCFmkMcZplerG8N4Wi2JIZWh6CBz6NI72rFW96NPHknxcpii8US6ZWK672/3PqMVF 3i21Gt1lLIwiHEwyIopsgjM/vtu5+mJUrXOs2Rh5rAygQxh4OIUgIn08TH8rzBU2F1pIHO7tOmb nSpnRFD/I9ZVq2b5GMkd1pIMXXT4OMNfyXRxy01Cj1wDZ+549dzCaO2rZF9e/9YPHfvF9n6rb5j AAgA= X-Mailer: git-send-email 2.42.0.283.g2d96d420d3-goog Message-ID: <20230912141549.278777-104-ardb@google.com> Subject: [PATCH v4 41/61] arm64/mm: Add FEAT_LPA2 specific TCR_EL1.DS field From: Ard Biesheuvel To: linux-arm-kernel@lists.infradead.org Cc: Ard Biesheuvel , Catalin Marinas , Will Deacon , Marc Zyngier , Mark Rutland , Ryan Roberts , Anshuman Khandual , Kees Cook , Joey Gouly X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20230912_071858_422964_0C820B60 X-CRM114-Status: GOOD ( 11.23 ) 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 From: Anshuman Khandual As per ARM ARM (0487G.A) TCR_EL1.DS fields controls whether 52 bit input and output address get supported on 4K and 16K page size configuration, when FEAT_LPA2 is known to have been implemented. This adds TCR_DS field definition which would be used when FEAT_LPA2 gets enabled. Acked-by: Catalin Marinas Signed-off-by: Anshuman Khandual Signed-off-by: Ard Biesheuvel --- arch/arm64/include/asm/pgtable-hwdef.h | 1 + 1 file changed, 1 insertion(+) diff --git a/arch/arm64/include/asm/pgtable-hwdef.h b/arch/arm64/include/asm/pgtable-hwdef.h index e4944d517c99..b770f98fc0b5 100644 --- a/arch/arm64/include/asm/pgtable-hwdef.h +++ b/arch/arm64/include/asm/pgtable-hwdef.h @@ -284,6 +284,7 @@ #define TCR_E0PD1 (UL(1) << 56) #define TCR_TCMA0 (UL(1) << 57) #define TCR_TCMA1 (UL(1) << 58) +#define TCR_DS (UL(1) << 59) /* * TTBR.