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Mon, 4 Dec 2023 04:14:02 GMT Received: from hu-obabatun-lv.qualcomm.com (10.49.16.6) by nalasex01b.na.qualcomm.com (10.47.209.197) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.2.1118.40; Sun, 3 Dec 2023 20:13:58 -0800 From: Oreoluwa Babatunde To: , , , CC: , , , , , Oreoluwa Babatunde Subject: [RFC PATCH v2 2/6] of: reserved_mem: Swicth call to unflatten_device_tree() to after paging_init() Date: Sun, 3 Dec 2023 20:13:35 -0800 Message-ID: <20231204041339.9902-3-quic_obabatun@quicinc.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20231204041339.9902-1-quic_obabatun@quicinc.com> References: <20231204041339.9902-1-quic_obabatun@quicinc.com> MIME-Version: 1.0 X-Originating-IP: [10.49.16.6] X-ClientProxiedBy: nalasex01b.na.qualcomm.com (10.47.209.197) To nalasex01b.na.qualcomm.com (10.47.209.197) X-QCInternal: smtphost X-Proofpoint-Virus-Version: vendor=nai engine=6200 definitions=5800 signatures=585085 X-Proofpoint-GUID: BJs88xF2E2BCiNw5c2Z6esPYLn8k0GMV X-Proofpoint-ORIG-GUID: BJs88xF2E2BCiNw5c2Z6esPYLn8k0GMV X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.272,Aquarius:18.0.997,Hydra:6.0.619,FMLib:17.11.176.26 definitions=2023-12-04_01,2023-11-30_01,2023-05-22_02 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 bulkscore=0 impostorscore=0 suspectscore=0 malwarescore=0 phishscore=0 spamscore=0 clxscore=1015 priorityscore=1501 adultscore=0 mlxscore=0 lowpriorityscore=0 mlxlogscore=873 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2311060000 definitions=main-2312040029 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20231203_201437_256161_F6AE1241 X-CRM114-Status: GOOD ( 23.56 ) 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 Switch call to unflatten_device_tree() to after paging_init() on other archs to follow new order in which the reserved_mem regions are processed. Signed-off-by: Oreoluwa Babatunde --- arch/loongarch/kernel/setup.c | 2 +- arch/mips/kernel/setup.c | 3 ++- arch/nios2/kernel/setup.c | 4 ++-- arch/openrisc/kernel/setup.c | 4 ++-- arch/powerpc/kernel/setup-common.c | 3 +++ arch/sh/kernel/setup.c | 5 ++--- arch/um/kernel/dtb.c | 1 - arch/um/kernel/um_arch.c | 2 ++ arch/xtensa/kernel/setup.c | 4 +++- 9 files changed, 17 insertions(+), 11 deletions(-) diff --git a/arch/loongarch/kernel/setup.c b/arch/loongarch/kernel/setup.c index d183a745fb85..a01051b0f9e0 100644 --- a/arch/loongarch/kernel/setup.c +++ b/arch/loongarch/kernel/setup.c @@ -366,7 +366,6 @@ void __init platform_init(void) acpi_gbl_use_default_register_widths = false; acpi_boot_table_init(); #endif - unflatten_and_copy_device_tree(); #ifdef CONFIG_NUMA init_numa_memory(); @@ -626,6 +625,7 @@ void __init setup_arch(char **cmdline_p) paging_init(); + unflatten_and_copy_device_tree(); #ifdef CONFIG_KASAN kasan_init(); #endif diff --git a/arch/mips/kernel/setup.c b/arch/mips/kernel/setup.c index 2d2ca024bd47..d3b6c86a8037 100644 --- a/arch/mips/kernel/setup.c +++ b/arch/mips/kernel/setup.c @@ -667,7 +667,6 @@ static void __init arch_mem_init(char **cmdline_p) mips_reserve_vmcore(); mips_parse_crashkernel(); - device_tree_init(); /* * In order to reduce the possibility of kernel panic when failed to @@ -798,6 +797,8 @@ void __init setup_arch(char **cmdline_p) cpu_cache_init(); paging_init(); + device_tree_init(); + memblock_dump_all(); setup_rng_seed(); diff --git a/arch/nios2/kernel/setup.c b/arch/nios2/kernel/setup.c index da122a5fa43b..6f1a4232b8f0 100644 --- a/arch/nios2/kernel/setup.c +++ b/arch/nios2/kernel/setup.c @@ -169,8 +169,6 @@ void __init setup_arch(char **cmdline_p) early_init_fdt_reserve_self(); early_init_fdt_scan_reserved_mem(); - unflatten_and_copy_device_tree(); - setup_cpuinfo(); copy_exception_handler(cpuinfo.exception_addr); @@ -189,4 +187,6 @@ void __init setup_arch(char **cmdline_p) * get kmalloc into gear */ paging_init(); + + unflatten_and_copy_device_tree(); } diff --git a/arch/openrisc/kernel/setup.c b/arch/openrisc/kernel/setup.c index 9cf7fb60441f..fcda33bdca19 100644 --- a/arch/openrisc/kernel/setup.c +++ b/arch/openrisc/kernel/setup.c @@ -255,8 +255,6 @@ void calibrate_delay(void) void __init setup_arch(char **cmdline_p) { - unflatten_and_copy_device_tree(); - setup_cpuinfo(); #ifdef CONFIG_SMP @@ -284,6 +282,8 @@ void __init setup_arch(char **cmdline_p) /* paging_init() sets up the MMU and marks all pages as reserved */ paging_init(); + unflatten_and_copy_device_tree(); + *cmdline_p = boot_command_line; printk(KERN_INFO "OpenRISC Linux -- http://openrisc.io\n"); diff --git a/arch/powerpc/kernel/setup-common.c b/arch/powerpc/kernel/setup-common.c index 9b142b9d5187..58da58d02652 100644 --- a/arch/powerpc/kernel/setup-common.c +++ b/arch/powerpc/kernel/setup-common.c @@ -986,6 +986,9 @@ void __init setup_arch(char **cmdline_p) paging_init(); + /* Unflatten the device-tree passed by prom_init or kexec */ + unflatten_device_tree(); + /* Initialize the MMU context management stuff. */ mmu_context_init(); diff --git a/arch/sh/kernel/setup.c b/arch/sh/kernel/setup.c index 3d80515298d2..2553696af21b 100644 --- a/arch/sh/kernel/setup.c +++ b/arch/sh/kernel/setup.c @@ -322,6 +322,8 @@ void __init setup_arch(char **cmdline_p) /* Let earlyprintk output early console messages */ sh_early_platform_driver_probe("earlyprintk", 1, 1); + paging_init(); + #ifdef CONFIG_OF_EARLY_FLATTREE #ifdef CONFIG_USE_BUILTIN_DTB unflatten_and_copy_device_tree(); @@ -329,9 +331,6 @@ void __init setup_arch(char **cmdline_p) unflatten_device_tree(); #endif #endif - - paging_init(); - /* Perform the machine specific initialisation */ if (likely(sh_mv.mv_setup)) sh_mv.mv_setup(cmdline_p); diff --git a/arch/um/kernel/dtb.c b/arch/um/kernel/dtb.c index 484141b06938..04b0ada3b929 100644 --- a/arch/um/kernel/dtb.c +++ b/arch/um/kernel/dtb.c @@ -26,7 +26,6 @@ void uml_dtb_init(void) } early_init_fdt_scan_reserved_mem(); - unflatten_device_tree(); } static int __init uml_dtb_setup(char *line, int *add) diff --git a/arch/um/kernel/um_arch.c b/arch/um/kernel/um_arch.c index b1bfed0c8528..fe6ecaa12ef2 100644 --- a/arch/um/kernel/um_arch.c +++ b/arch/um/kernel/um_arch.c @@ -7,6 +7,7 @@ #include #include #include +#include #include #include #include @@ -421,6 +422,7 @@ void __init setup_arch(char **cmdline_p) read_initrd(); paging_init(); + unflatten_device_tree(); strscpy(boot_command_line, command_line, COMMAND_LINE_SIZE); *cmdline_p = command_line; setup_hostinfo(host_info, sizeof host_info); diff --git a/arch/xtensa/kernel/setup.c b/arch/xtensa/kernel/setup.c index bdec4a773af0..d20c56b4182e 100644 --- a/arch/xtensa/kernel/setup.c +++ b/arch/xtensa/kernel/setup.c @@ -355,13 +355,15 @@ void __init setup_arch(char **cmdline_p) parse_early_param(); bootmem_init(); kasan_init(); - unflatten_and_copy_device_tree(); #ifdef CONFIG_SMP smp_init_cpus(); #endif paging_init(); + + unflatten_and_copy_device_tree(); + zones_init(); #ifdef CONFIG_VT