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Sun, 26 Apr 2026 20:45:24 -0700 (PDT) From: WANG Rui To: Ard Biesheuvel , Huacai Chen Cc: Ilias Apalodimas , WANG Xuerui , linux-efi@vger.kernel.org, linux-kernel@vger.kernel.org, loongarch@lists.linux.dev, WANG Rui Subject: [PATCH 1/2] efi/loongarch: Implement efi_cache_sync_image Date: Mon, 27 Apr 2026 11:44:50 +0800 Message-ID: <20260427034451.717817-2-r@hev.cc> X-Mailer: git-send-email 2.54.0 In-Reply-To: <20260427034451.717817-1-r@hev.cc> References: <20260427034451.717817-1-r@hev.cc> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Provide a LoongArch implementation of efi_cache_sync_image() to ensure instruction cache coherency after the kernel image is relocated. Signed-off-by: WANG Rui --- drivers/firmware/efi/libstub/loongarch.c | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/drivers/firmware/efi/libstub/loongarch.c b/drivers/firmware/efi/libstub/loongarch.c index 9825f5218137..26495747f69f 100644 --- a/drivers/firmware/efi/libstub/loongarch.c +++ b/drivers/firmware/efi/libstub/loongarch.c @@ -82,3 +82,8 @@ efi_status_t efi_boot_kernel(void *handle, efi_loaded_image_t *image, real_kernel_entry(true, (unsigned long)cmdline_ptr, (unsigned long)efi_system_table); } + +void efi_cache_sync_image(unsigned long image_base, unsigned long alloc_size) +{ + asm volatile ("ibar 0" ::: "memory"); +} -- 2.54.0