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Linux x86_64; rv:102.0) Gecko/20100101 Thunderbird/102.9.1 Content-Language: en-US To: Sascha Hauer , Barebox List References: <20230512111008.1120833-1-s.hauer@pengutronix.de> <20230512111008.1120833-12-s.hauer@pengutronix.de> From: Ahmad Fatoum In-Reply-To: <20230512111008.1120833-12-s.hauer@pengutronix.de> Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20230512_111006_203293_9BAC4F64 X-CRM114-Status: GOOD ( 19.38 ) X-BeenThere: barebox@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "barebox" X-SA-Exim-Connect-IP: 2607:7c80:54:3::133 X-SA-Exim-Mail-From: barebox-bounces+lore=pengutronix.de@lists.infradead.org X-Spam-Checker-Version: SpamAssassin 3.4.2 (2018-09-13) on metis.ext.pengutronix.de X-Spam-Level: X-Spam-Status: No, score=-5.7 required=4.0 tests=AWL,BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,NICE_REPLY_A,RCVD_IN_DNSWL_MED,SPF_HELO_NONE, SPF_NONE,T_SCC_BODY_TEXT_LINE autolearn=unavailable autolearn_force=no version=3.4.2 Subject: Re: [PATCH 11/27] ARM: Move early MMU after malloc initialization X-SA-Exim-Version: 4.2.1 (built Wed, 08 May 2019 21:11:16 +0000) X-SA-Exim-Scanned: Yes (on metis.ext.pengutronix.de) On 12.05.23 13:09, Sascha Hauer wrote: > Initialize the MMU after malloc so that we can use malloc in the > MMU code, for example to allocate memory for page tables. > > Signed-off-by: Sascha Hauer Acked-by: Ahmad Fatoum > --- > arch/arm/cpu/start.c | 20 ++++++++++---------- > 1 file changed, 10 insertions(+), 10 deletions(-) > > diff --git a/arch/arm/cpu/start.c b/arch/arm/cpu/start.c > index bcfc630f3b..9d788eba2b 100644 > --- a/arch/arm/cpu/start.c > +++ b/arch/arm/cpu/start.c > @@ -167,16 +167,6 @@ __noreturn __no_sanitize_address void barebox_non_pbl_start(unsigned long membas > arm_barebox_size = barebox_size; > malloc_end = barebox_base; > > - if (IS_ENABLED(CONFIG_MMU_EARLY)) { > - unsigned long ttb = arm_mem_ttb(membase, endmem); > - > - if (!IS_ENABLED(CONFIG_PBL_IMAGE)) { > - pr_debug("enabling MMU, ttb @ 0x%08lx\n", ttb); > - arm_early_mmu_cache_invalidate(); > - mmu_early_enable(membase, memsize - OPTEE_SIZE, ttb); > - } > - } > - > if (boarddata) { > uint32_t totalsize = 0; > const char *name; > @@ -226,6 +216,16 @@ __noreturn __no_sanitize_address void barebox_non_pbl_start(unsigned long membas > > mem_malloc_init((void *)malloc_start, (void *)malloc_end - 1); > > + if (IS_ENABLED(CONFIG_MMU_EARLY)) { > + unsigned long ttb = arm_mem_ttb(membase, endmem); > + > + if (!IS_ENABLED(CONFIG_PBL_IMAGE)) { > + pr_debug("enabling MMU, ttb @ 0x%08lx\n", ttb); > + arm_early_mmu_cache_invalidate(); > + mmu_early_enable(membase, memsize - OPTEE_SIZE, ttb); > + } > + } > + > if (IS_ENABLED(CONFIG_BOOTM_OPTEE)) > of_add_reserve_entry(endmem - OPTEE_SIZE, endmem - 1); > -- Pengutronix e.K. | | Steuerwalder Str. 21 | http://www.pengutronix.de/ | 31137 Hildesheim, Germany | Phone: +49-5121-206917-0 | Amtsgericht Hildesheim, HRA 2686 | Fax: +49-5121-206917-5555 |