From: Oreoluwa Babatunde <quic_obabatun@quicinc.com> To: <catalin.marinas@arm.com>, <will@kernel.org>, <robh+dt@kernel.org>, <frowand.list@gmail.com>, <vgupta@kernel.org>, <arnd@arndb.de>, <olof@lixom.net>, <soc@kernel.org>, <guoren@kernel.org>, <monstr@monstr.eu>, <palmer@dabbelt.com>, <aou@eecs.berkeley.edu>, <dinguyen@kernel.org>, <chenhuacai@kernel.org>, <tsbogend@alpha.franken.de>, <jonas@southpole.se>, <stefan.kristiansson@saunalahti.fi>, <shorne@gmail.com>, <mpe@ellerman.id.au>, <ysato@users.sourceforge.jp>, <dalias@libc.org>, <glaubitz@physik.fu-berlin.de>, <richard@nod.at>, <anton.ivanov@cambridgegreys.com>, <johannes@sipsolutions.net>, <chris@zankel.net>, <jcmvbkbc@gmail.com> Cc: <linux-arm-kernel@lists.infradead.org>, <linux-kernel@vger.kernel.org>, <devicetree@vger.kernel.org>, <linux-arm-msm@vger.kernel.org>, <kernel@quicinc.com>, Oreoluwa Babatunde <quic_obabatun@quicinc.com> Subject: [PATCH 05/46] arm64: reserved_mem: Implement the new processing order for reserved memory Date: Fri, 26 Jan 2024 15:53:44 -0800 [thread overview] Message-ID: <20240126235425.12233-6-quic_obabatun@quicinc.com> (raw) In-Reply-To: <20240126235425.12233-1-quic_obabatun@quicinc.com> Call early_fdt_scan_reserved_mem() in place of early_init_fdt_scan_reserved_mem() to carry out the first stage of the reserved memory processing only. The early_fdt_scan_reserved_mem() function is used to scan through the DT and mark all the reserved memory regions as reserved or nomap as needed, as well as allocate the memory required by the dynamically-placed reserved memory regions. The second stage of the reserved memory processing is done by fdt_init_reserved_mem(). This function is used to store the information of the statically-placed reserved memory nodes in the reserved_mem array as well as call the region specific initialization function on all the stored reserved memory regions. The call to fdt_init_reserved_mem() is placed after setup_arch_memory() in preparation for the dynamic allocation of the reserved_mem array using memblock. This is because memblock allocated memory is not writable until after the page tables have been setup on the arm64 architecture. Signed-off-by: Oreoluwa Babatunde <quic_obabatun@quicinc.com> --- arch/arm64/kernel/setup.c | 3 +++ arch/arm64/mm/init.c | 2 +- 2 files changed, 4 insertions(+), 1 deletion(-) diff --git a/arch/arm64/kernel/setup.c b/arch/arm64/kernel/setup.c index 42c690bb2d60..2a9e98104af7 100644 --- a/arch/arm64/kernel/setup.c +++ b/arch/arm64/kernel/setup.c @@ -27,6 +27,7 @@ #include <linux/proc_fs.h> #include <linux/memblock.h> #include <linux/of_fdt.h> +#include <linux/of_reserved_mem.h> #include <linux/efi.h> #include <linux/psci.h> #include <linux/sched/task.h> @@ -346,6 +347,8 @@ void __init __no_sanitize_address setup_arch(char **cmdline_p) paging_init(); + fdt_init_reserved_mem(); + acpi_table_upgrade(); /* Parse the ACPI tables for possible boot-time configuration */ diff --git a/arch/arm64/mm/init.c b/arch/arm64/mm/init.c index 74c1db8ce271..0fe8587e550c 100644 --- a/arch/arm64/mm/init.c +++ b/arch/arm64/mm/init.c @@ -310,7 +310,7 @@ void __init arm64_memblock_init(void) initrd_end = initrd_start + phys_initrd_size; } - early_init_fdt_scan_reserved_mem(); + early_fdt_scan_reserved_mem(); high_memory = __va(memblock_end_of_DRAM() - 1) + 1; } -- 2.17.1
WARNING: multiple messages have this Message-ID (diff)
From: Oreoluwa Babatunde <quic_obabatun@quicinc.com> To: <catalin.marinas@arm.com>, <will@kernel.org>, <robh+dt@kernel.org>, <frowand.list@gmail.com>, <vgupta@kernel.org>, <arnd@arndb.de>, <olof@lixom.net>, <soc@kernel.org>, <guoren@kernel.org>, <monstr@monstr.eu>, <palmer@dabbelt.com>, <aou@eecs.berkeley.edu>, <dinguyen@kernel.org>, <chenhuacai@kernel.org>, <tsbogend@alpha.franken.de>, <jonas@southpole.se>, <stefan.kristiansson@saunalahti.fi>, <shorne@gmail.com>, <mpe@ellerman.id.au>, <ysato@users.sourceforge.jp>, <dalias@libc.org>, <glaubitz@physik.fu-berlin.de>, <richard@nod.at>, <anton.ivanov@cambridgegreys.com>, <johannes@sipsolutions.net>, <chris@zankel.net>, <jcmvbkbc@gmail.com> Cc: <linux-arm-kernel@lists.infradead.org>, <linux-kernel@vger.kernel.org>, <devicetree@vger.kernel.org>, <linux-arm-msm@vger.kernel.org>, <kernel@quicinc.com>, Oreoluwa Babatunde <quic_obabatun@quicinc.com> Subject: [PATCH 05/46] arm64: reserved_mem: Implement the new processing order for reserved memory Date: Fri, 26 Jan 2024 15:53:44 -0800 [thread overview] Message-ID: <20240126235425.12233-6-quic_obabatun@quicinc.com> (raw) In-Reply-To: <20240126235425.12233-1-quic_obabatun@quicinc.com> Call early_fdt_scan_reserved_mem() in place of early_init_fdt_scan_reserved_mem() to carry out the first stage of the reserved memory processing only. The early_fdt_scan_reserved_mem() function is used to scan through the DT and mark all the reserved memory regions as reserved or nomap as needed, as well as allocate the memory required by the dynamically-placed reserved memory regions. The second stage of the reserved memory processing is done by fdt_init_reserved_mem(). This function is used to store the information of the statically-placed reserved memory nodes in the reserved_mem array as well as call the region specific initialization function on all the stored reserved memory regions. The call to fdt_init_reserved_mem() is placed after setup_arch_memory() in preparation for the dynamic allocation of the reserved_mem array using memblock. This is because memblock allocated memory is not writable until after the page tables have been setup on the arm64 architecture. Signed-off-by: Oreoluwa Babatunde <quic_obabatun@quicinc.com> --- arch/arm64/kernel/setup.c | 3 +++ arch/arm64/mm/init.c | 2 +- 2 files changed, 4 insertions(+), 1 deletion(-) diff --git a/arch/arm64/kernel/setup.c b/arch/arm64/kernel/setup.c index 42c690bb2d60..2a9e98104af7 100644 --- a/arch/arm64/kernel/setup.c +++ b/arch/arm64/kernel/setup.c @@ -27,6 +27,7 @@ #include <linux/proc_fs.h> #include <linux/memblock.h> #include <linux/of_fdt.h> +#include <linux/of_reserved_mem.h> #include <linux/efi.h> #include <linux/psci.h> #include <linux/sched/task.h> @@ -346,6 +347,8 @@ void __init __no_sanitize_address setup_arch(char **cmdline_p) paging_init(); + fdt_init_reserved_mem(); + acpi_table_upgrade(); /* Parse the ACPI tables for possible boot-time configuration */ diff --git a/arch/arm64/mm/init.c b/arch/arm64/mm/init.c index 74c1db8ce271..0fe8587e550c 100644 --- a/arch/arm64/mm/init.c +++ b/arch/arm64/mm/init.c @@ -310,7 +310,7 @@ void __init arm64_memblock_init(void) initrd_end = initrd_start + phys_initrd_size; } - early_init_fdt_scan_reserved_mem(); + early_fdt_scan_reserved_mem(); high_memory = __va(memblock_end_of_DRAM() - 1) + 1; } -- 2.17.1 _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel
next prev parent reply other threads:[~2024-01-26 23:56 UTC|newest] Thread overview: 126+ messages / expand[flat|nested] mbox.gz Atom feed top 2024-01-26 23:53 [PATCH 00/46] Dynamic allocation of reserved_mem array Oreoluwa Babatunde 2024-01-26 23:53 ` Oreoluwa Babatunde 2024-01-26 23:53 ` [PATCH 01/46] of: reserved_mem: Change the order that reserved_mem regions are stored Oreoluwa Babatunde 2024-01-26 23:53 ` Oreoluwa Babatunde 2024-01-26 23:53 ` [PATCH 02/46] of: reserved_mem: Introduce new early reserved memory scan function Oreoluwa Babatunde 2024-01-26 23:53 ` Oreoluwa Babatunde 2024-01-26 23:53 ` [PATCH 03/46] ARC: reserved_mem: Implement the new processing order for reserved memory Oreoluwa Babatunde 2024-01-26 23:53 ` Oreoluwa Babatunde 2024-01-26 23:53 ` [PATCH 04/46] ARM: " Oreoluwa Babatunde 2024-01-26 23:53 ` Oreoluwa Babatunde 2024-01-26 23:53 ` Oreoluwa Babatunde [this message] 2024-01-26 23:53 ` [PATCH 05/46] arm64: " Oreoluwa Babatunde 2024-01-26 23:53 ` [PATCH 06/46] csky: " Oreoluwa Babatunde 2024-01-26 23:53 ` Oreoluwa Babatunde 2024-01-26 23:53 ` [PATCH 07/46] Loongarch: " Oreoluwa Babatunde 2024-01-26 23:53 ` Oreoluwa Babatunde 2024-01-31 15:27 ` Rob Herring 2024-01-31 15:27 ` Rob Herring 2024-02-01 17:17 ` Oreoluwa Babatunde 2024-02-01 17:17 ` Oreoluwa Babatunde 2024-01-26 23:53 ` [PATCH 08/46] microblaze: " Oreoluwa Babatunde 2024-01-26 23:53 ` Oreoluwa Babatunde 2024-01-26 23:53 ` [PATCH 09/46] mips: " Oreoluwa Babatunde 2024-01-26 23:53 ` Oreoluwa Babatunde 2024-01-26 23:53 ` [PATCH 10/46] nios2: " Oreoluwa Babatunde 2024-01-26 23:53 ` Oreoluwa Babatunde 2024-01-26 23:53 ` [PATCH 11/46] openrisc: " Oreoluwa Babatunde 2024-01-26 23:53 ` Oreoluwa Babatunde 2024-01-26 23:53 ` [PATCH 12/46] powerpc: " Oreoluwa Babatunde 2024-01-26 23:53 ` Oreoluwa Babatunde 2024-01-26 23:53 ` [PATCH 13/46] riscv: " Oreoluwa Babatunde 2024-01-26 23:53 ` Oreoluwa Babatunde 2024-01-26 23:53 ` [PATCH 14/46] sh: " Oreoluwa Babatunde 2024-01-26 23:53 ` Oreoluwa Babatunde 2024-01-31 15:41 ` Rob Herring 2024-01-31 15:41 ` Rob Herring 2024-02-01 17:15 ` Oreoluwa Babatunde 2024-02-01 17:15 ` Oreoluwa Babatunde 2024-01-26 23:53 ` [PATCH 15/46] um: " Oreoluwa Babatunde 2024-01-26 23:53 ` Oreoluwa Babatunde 2024-01-26 23:53 ` [PATCH 16/46] xtensa: " Oreoluwa Babatunde 2024-01-26 23:53 ` Oreoluwa Babatunde 2024-01-26 23:53 ` [PATCH 17/46] of: reserved_mem: Delete the early_init_fdt_scan_reserved_mem() function Oreoluwa Babatunde 2024-01-26 23:53 ` Oreoluwa Babatunde 2024-01-26 23:53 ` [PATCH 18/46] of: reserved_mem: Add code to dynamically allocate reserved_mem array Oreoluwa Babatunde 2024-01-26 23:53 ` Oreoluwa Babatunde 2024-01-29 3:39 ` kernel test robot 2024-01-29 3:39 ` kernel test robot 2024-01-29 13:57 ` kernel test robot 2024-01-29 13:57 ` kernel test robot 2024-01-26 23:53 ` [PATCH 19/46] ARC: resrved_mem: Move fdt_init_reserved_mem() below unflatten_device_tree() Oreoluwa Babatunde 2024-01-26 23:53 ` Oreoluwa Babatunde 2024-01-26 23:53 ` [PATCH 20/46] ARM: " Oreoluwa Babatunde 2024-01-26 23:53 ` Oreoluwa Babatunde 2024-01-26 23:54 ` [PATCH 21/46] arm64: " Oreoluwa Babatunde 2024-01-26 23:54 ` Oreoluwa Babatunde 2024-01-26 23:54 ` [PATCH 22/46] csky: " Oreoluwa Babatunde 2024-01-26 23:54 ` Oreoluwa Babatunde 2024-01-26 23:54 ` [PATCH 23/46] microblaze: " Oreoluwa Babatunde 2024-01-26 23:54 ` Oreoluwa Babatunde 2024-01-26 23:54 ` [PATCH 24/46] mips: " Oreoluwa Babatunde 2024-01-26 23:54 ` Oreoluwa Babatunde 2024-01-26 23:54 ` [PATCH 25/46] nios2: " Oreoluwa Babatunde 2024-01-26 23:54 ` Oreoluwa Babatunde 2024-01-26 23:54 ` [PATCH 26/46] powerpc: " Oreoluwa Babatunde 2024-01-26 23:54 ` Oreoluwa Babatunde 2024-01-26 23:54 ` [PATCH 27/46] riscv: " Oreoluwa Babatunde 2024-01-26 23:54 ` Oreoluwa Babatunde 2024-01-26 23:54 ` [PATCH 28/46] um: " Oreoluwa Babatunde 2024-01-26 23:54 ` Oreoluwa Babatunde 2024-01-26 23:54 ` [PATCH 29/46] xtensa: " Oreoluwa Babatunde 2024-01-26 23:54 ` Oreoluwa Babatunde 2024-01-26 23:54 ` [PATCH 30/46] of: reserved_mem: Add code to use unflattened DT for reserved_mem nodes Oreoluwa Babatunde 2024-01-26 23:54 ` Oreoluwa Babatunde 2024-01-28 4:29 ` kernel test robot 2024-01-28 4:29 ` kernel test robot 2024-01-28 6:06 ` kernel test robot 2024-01-28 6:06 ` kernel test robot 2024-01-29 18:58 ` kernel test robot 2024-01-29 18:58 ` kernel test robot 2024-01-31 17:53 ` kernel test robot 2024-01-31 17:53 ` kernel test robot 2024-01-26 23:54 ` [PATCH 31/46] of: reserved_mem: Rename fdt_* functions to refelct use of unflattened devicetree APIs Oreoluwa Babatunde 2024-01-26 23:54 ` Oreoluwa Babatunde 2024-01-26 23:54 ` [PATCH 32/46] ARC: reserved_mem: Switch fdt_init_reserved_mem() to dt_init_reserved_mem() Oreoluwa Babatunde 2024-01-26 23:54 ` Oreoluwa Babatunde 2024-01-26 23:54 ` [PATCH 33/46] ARM: " Oreoluwa Babatunde 2024-01-26 23:54 ` Oreoluwa Babatunde 2024-01-26 23:54 ` [PATCH 34/46] arm64: " Oreoluwa Babatunde 2024-01-26 23:54 ` Oreoluwa Babatunde 2024-01-26 23:54 ` [PATCH 35/46] csky: " Oreoluwa Babatunde 2024-01-26 23:54 ` Oreoluwa Babatunde 2024-01-26 23:54 ` [PATCH 36/46] loongarch: reserved_mem: Switch fdt_init_reserved_mem to dt_init_reserved_mem Oreoluwa Babatunde 2024-01-26 23:54 ` Oreoluwa Babatunde 2024-01-26 23:54 ` [PATCH 37/46] microblaze: " Oreoluwa Babatunde 2024-01-26 23:54 ` Oreoluwa Babatunde 2024-01-26 23:54 ` [PATCH 38/46] mips: reserved_mem: Switch fdt_init_reserved_mem() to dt_init_reserved_mem() Oreoluwa Babatunde 2024-01-26 23:54 ` Oreoluwa Babatunde 2024-01-26 23:54 ` [PATCH 39/46] nios2: " Oreoluwa Babatunde 2024-01-26 23:54 ` Oreoluwa Babatunde 2024-01-26 23:54 ` [PATCH 40/46] openrisc: reserved_mem: Switch fdt_init_reserved_mem to dt_init_reserved_mem Oreoluwa Babatunde 2024-01-26 23:54 ` Oreoluwa Babatunde 2024-01-26 23:54 ` [PATCH 41/46] powerpc: reserved_mem: Switch fdt_init_reserved_mem() to dt_init_reserved_mem() Oreoluwa Babatunde 2024-01-26 23:54 ` Oreoluwa Babatunde 2024-01-26 23:54 ` [PATCH 42/46] riscv: " Oreoluwa Babatunde 2024-01-26 23:54 ` Oreoluwa Babatunde 2024-01-26 23:54 ` [PATCH 43/46] sh: " Oreoluwa Babatunde 2024-01-26 23:54 ` Oreoluwa Babatunde 2024-01-26 23:54 ` [PATCH 44/46] um: " Oreoluwa Babatunde 2024-01-26 23:54 ` Oreoluwa Babatunde 2024-01-26 23:54 ` [PATCH 45/46] xtensa: " Oreoluwa Babatunde 2024-01-26 23:54 ` Oreoluwa Babatunde 2024-01-26 23:54 ` [PATCH 46/46] of: reserved_mem: Delete the fdt_init_reserved_mem() function Oreoluwa Babatunde 2024-01-26 23:54 ` Oreoluwa Babatunde 2024-01-31 0:07 ` [PATCH 00/46] Dynamic allocation of reserved_mem array Rob Herring 2024-01-31 0:07 ` Rob Herring 2024-02-01 17:08 ` Oreoluwa Babatunde 2024-02-01 17:08 ` Oreoluwa Babatunde 2024-02-01 19:46 ` Rob Herring 2024-02-01 19:46 ` Rob Herring 2024-02-01 21:10 ` Oreoluwa Babatunde 2024-02-01 21:10 ` Oreoluwa Babatunde 2024-02-02 15:29 ` Rob Herring 2024-02-02 15:29 ` Rob Herring 2024-02-07 21:13 ` Oreoluwa Babatunde 2024-02-07 21:13 ` Oreoluwa Babatunde
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