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Sat, 19 Jan 2019 13:27:53 +0000 From: Anup Patel To: Palmer Dabbelt , Albert Ou Subject: [PATCH v2 0/6] Fixmap support and MM cleanups Thread-Topic: [PATCH v2 0/6] Fixmap support and MM cleanups Thread-Index: AQHUr/rHNH/2/efIlUiV/69TwsVAFw== Date: Sat, 19 Jan 2019 13:27:53 +0000 Message-ID: <20190119132650.9978-1-anup.patel@wdc.com> Accept-Language: en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: x-clientproxiedby: MA1PR01CA0111.INDPRD01.PROD.OUTLOOK.COM (2603:1096:a00:1::27) To BYAPR04MB5303.namprd04.prod.outlook.com (2603:10b6:a03:c8::20) authentication-results: spf=none (sender IP is ) smtp.mailfrom=Anup.Patel@wdc.com; x-ms-exchange-messagesentrepresentingtype: 1 x-mailer: git-send-email 2.17.1 x-originating-ip: [49.207.52.191] x-ms-publictraffictype: Email x-microsoft-exchange-diagnostics: 1; BYAPR04MB6117; 6:G7JsDvVE+c7wDaaA/oVxO1+bUIzaNOe9pJ920P+QHy2KdGFVA+Yo5tsqipPHwGOuezE95CuUcBqRzyTXdPFGN58OKD/drFCiaCPXBhIiqyeS9xar/IvLeVJHNCPIU1k9kG3iVpSEYlokSEHxD60fHTp/RP5lQbsI2mdeGqhT/HMNctTqLpps2W1tYQ6N/pgd+88ejm9ACaYrD5oi/yZsqsB5CzKiCJ3V0A/cBbUD3hpmrATbtA4tTDmsGaylglg2o7Q/5+SpaEqgIB7ED5KcnkneYcHGnOeAb44REcINu++hytKvg6YN8O1mVdCYlRLfQiV2k05YvC26Oa918wbk9Rroxyh93sD0oxYs8dD/1hdS4pcJ7rc3+OgPBSfqml+qVHZBZzCaHoH15EGFCPvcTFh1FnAtlZNdy/lnnKW0FnJeGKMMARHEs4uoznTQmvp2xzoAGaCo5bYoxTbozRWR1Q==; 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charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-riscv" Errors-To: linux-riscv-bounces+infradead-linux-riscv=archiver.kernel.org@lists.infradead.org This patchset does: 1. Moves MM related code from kernel/setup.c to mm/init.c 2. Implements compile-time fixed mappings Using fixed mappings available, we can now get earlyprints even without SBI calls. For example, we can use kernel parameter "earlycon=uart8250,mmio,0x10000000" to get early prints on QEMU virt machine without using SBI calls. The patchset is tested on QEMU virt machine. It is based on Linux-5.0-rc2 and can be found at riscv_fixmap_v2 branch of: https://github.com/avpatel/linux.git. Changes since v1: - Use more characters per line in changelog of PATCH3 - Removed #ifndef __ASSEMBLY__ from PATCH5 - Use more characters per line in commets of PATCH5 - Added PATCH6 to implement keepinitrd kernel parameter Anup Patel (6): RISC-V: Move free_initrd_mem() to kernel/setup.c RISC-V: Setup init_mm before parse_early_param() RISC-V: Move setup_bootmem() to mm/init.c RISC-V: Move setup_vm() to mm/init.c RISC-V: Implement compile-time fixed mappings RISC-V: Implement keepinitrd kernel parameter arch/riscv/Kconfig | 3 + arch/riscv/include/asm/fixmap.h | 44 +++++++++++ arch/riscv/include/asm/pgtable.h | 1 + arch/riscv/kernel/setup.c | 114 ++++++---------------------- arch/riscv/mm/init.c | 124 ++++++++++++++++++++++++++++++- 5 files changed, 189 insertions(+), 97 deletions(-) create mode 100644 arch/riscv/include/asm/fixmap.h -- 2.17.1 _______________________________________________ linux-riscv mailing list linux-riscv@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-riscv