From patchwork Sat Jun 6 17:15:30 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Ard Biesheuvel X-Patchwork-Id: 241846 List-Id: U-Boot discussion From: ardb at kernel.org (Ard Biesheuvel) Date: Sat, 6 Jun 2020 19:15:30 +0200 Subject: [PATCH 1/5] arm: enable allocate-on-read for LPAE's DCACHE_WRITEBACK In-Reply-To: <20200606171534.736365-1-ardb@kernel.org> References: <20200606171534.736365-1-ardb@kernel.org> Message-ID: <20200606171534.736365-2-ardb@kernel.org> The LPAE version of DCACHE_WRITEBACK is currently defined as no-allocate for both reads and writes, which deviates from the non-LPAE definition, and mostly defeats the purpose of enabling the caches in the first place. So align LPAE with !LPAE, and enable allocate-on-read. Signed-off-by: Ard Biesheuvel --- arch/arm/include/asm/system.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/arm/include/asm/system.h b/arch/arm/include/asm/system.h index 7a40b56acdca..21b26557d28b 100644 --- a/arch/arm/include/asm/system.h +++ b/arch/arm/include/asm/system.h @@ -445,7 +445,7 @@ static inline void set_dacr(unsigned int val) * Memory types */ #define MEMORY_ATTRIBUTES ((0x00 << (0 * 8)) | (0x88 << (1 * 8)) | \ - (0xcc << (2 * 8)) | (0xff << (3 * 8))) + (0xee << (2 * 8)) | (0xff << (3 * 8))) /* options available for data cache on each page */ enum dcache_option {