From mboxrd@z Thu Jan 1 00:00:00 1970 Received: with ECARTIS (v1.0.0; list linux-mips); Thu, 13 Feb 2014 13:11:34 +0100 (CET) Received: from mail-pb0-f42.google.com ([209.85.160.42]:39329 "EHLO mail-pb0-f42.google.com" rhost-flags-OK-OK-OK-OK) by eddie.linux-mips.org with ESMTP id S6867080AbaBMMKjUfOXE (ORCPT ); Thu, 13 Feb 2014 13:10:39 +0100 Received: by mail-pb0-f42.google.com with SMTP id jt11so10722457pbb.15 for ; Thu, 13 Feb 2014 04:10:32 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=sender:from:to:cc:subject:date:message-id:in-reply-to:references; bh=zLC+TxuXZ6MaBg2c7oBIIJLpZduCT+w4BHuXnVMcOtc=; b=SqZL6Of5DHSqq3yVSfvhcvLNNVKaYnQBTE77fNF1Bmnp0QO+lOm3GejVfBtx9P8lQs oeKXA1eKAjk0akYdEkx9sQpPXoMZ0CmxntMtZTnKKfoIozCr0EG4g8INCfdVp4VzcG17 m32BWl/DUdALYwlOnszbSFhNKErzr+VBybcwkGkxKZhpSPZPgOHww6UyMfQD9wNYYJzp 4fVR3m9HU7G2puqkMfkV/V+D6/emIn5dxqQD17qSL+2/S+wUErOumoVsSkXpyPE13lLE CyCzdYMxvKUWMQLkmCkWINZ6+aV1Eg2moXVtjxh9iGS+QTr0+Hx9ArQUchc/7sdduONJ C5XA== X-Received: by 10.68.197.8 with SMTP id iq8mr1326230pbc.124.1392293432265; Thu, 13 Feb 2014 04:10:32 -0800 (PST) Received: from localhost.localdomain ([222.92.8.142]) by mx.google.com with ESMTPSA id f5sm13421356pat.11.2014.02.13.04.10.22 for (version=TLSv1 cipher=RC4-SHA bits=128/128); Thu, 13 Feb 2014 04:10:31 -0800 (PST) From: Huacai Chen To: Ralf Baechle Cc: John Crispin , "Steven J. Hill" , Aurelien Jarno , linux-mips@linux-mips.org, Fuxin Zhang , Zhangjin Wu , Huacai Chen , Hongliang Tao , Hua Yan Subject: [PATCH V18 05/13] MIPS: Loongson: Add UEFI-like firmware interface (LEFI) support Date: Thu, 13 Feb 2014 20:08:55 +0800 Message-Id: <1392293343-5453-6-git-send-email-chenhc@lemote.com> X-Mailer: git-send-email 1.7.7.3 In-Reply-To: <1392293343-5453-1-git-send-email-chenhc@lemote.com> References: <1392293343-5453-1-git-send-email-chenhc@lemote.com> Return-Path: X-Envelope-To: <"|/home/ecartis/ecartis -s linux-mips"> (uid 0) X-Orcpt: rfc822;linux-mips@linux-mips.org Original-Recipient: rfc822;linux-mips@linux-mips.org X-archive-position: 39289 X-ecartis-version: Ecartis v1.0.0 Sender: linux-mips-bounce@linux-mips.org Errors-to: linux-mips-bounce@linux-mips.org X-original-sender: chenhc@lemote.com Precedence: bulk List-help: List-unsubscribe: List-software: Ecartis version 1.0.0 List-Id: linux-mips X-List-ID: linux-mips List-subscribe: List-owner: List-post: List-archive: X-list: linux-mips The new UEFI-like firmware interface (LEFI, i.e. Loongson Unified Firmware Interface) has 3 advantages: 1, Firmware export a physical memory map which is similar to X86's E820 map, so prom_init_memory() will be more elegant that #ifdef clauses can be removed. 2, Firmware export a pci irq routing table, we no longer need pci irq routing fixup in kernel's code. 3, Firmware has a built-in vga bios, and its address is exported, the linux kernel no longer need an embedded blob. With the LEFI interface, Loongson-3A/2G and all their successors can use a unified kernel. All Loongson-based machines support this new interface except 2E/2F series. Signed-off-by: Huacai Chen Signed-off-by: Hongliang Tao Signed-off-by: Hua Yan Tested-by: Alex Smith Reviewed-by: Alex Smith --- arch/mips/include/asm/mach-loongson/boot_param.h | 159 ++++++++++++++++++++++ arch/mips/include/asm/mach-loongson/loongson.h | 4 +- arch/mips/loongson/common/env.c | 62 +++++++-- arch/mips/loongson/common/init.c | 9 +- arch/mips/loongson/common/mem.c | 42 ++++++ arch/mips/loongson/common/pci.c | 6 +- arch/mips/loongson/common/reset.c | 21 +++ 7 files changed, 283 insertions(+), 20 deletions(-) create mode 100644 arch/mips/include/asm/mach-loongson/boot_param.h diff --git a/arch/mips/include/asm/mach-loongson/boot_param.h b/arch/mips/include/asm/mach-loongson/boot_param.h new file mode 100644 index 0000000..a40dd56 --- /dev/null +++ b/arch/mips/include/asm/mach-loongson/boot_param.h @@ -0,0 +1,159 @@ +#ifndef __ASM_MACH_LOONGSON_BOOT_PARAM_H_ +#define __ASM_MACH_LOONGSON_BOOT_PARAM_H_ + +#define SYSTEM_RAM_LOW 1 +#define SYSTEM_RAM_HIGH 2 +#define MEM_RESERVED 3 +#define PCI_IO 4 +#define PCI_MEM 5 +#define LOONGSON_CFG_REG 6 +#define VIDEO_ROM 7 +#define ADAPTER_ROM 8 +#define ACPI_TABLE 9 +#define MAX_MEMORY_TYPE 10 + +#define LOONGSON3_BOOT_MEM_MAP_MAX 128 +struct efi_memory_map_loongson { + u16 vers; /* version of efi_memory_map */ + u32 nr_map; /* number of memory_maps */ + u32 mem_freq; /* memory frequence */ + struct mem_map { + u32 node_id; /* node_id which memory attached to */ + u32 mem_type; /* system memory, pci memory, pci io, etc. */ + u64 mem_start; /* memory map start address */ + u32 mem_size; /* each memory_map size, not the total size */ + } map[LOONGSON3_BOOT_MEM_MAP_MAX]; +} __packed; + +enum loongson_cpu_type { + Loongson_2E = 0, + Loongson_2F = 1, + Loongson_3A = 2, + Loongson_3B = 3, + Loongson_1A = 4, + Loongson_1B = 5 +}; + +/* + * Capability and feature descriptor structure for MIPS CPU + */ +struct efi_cpuinfo_loongson { + u16 vers; /* version of efi_cpuinfo_loongson */ + u32 processor_id; /* PRID, e.g. 6305, 6306 */ + u32 cputype; /* Loongson_3A/3B, etc. */ + u32 total_node; /* num of total numa nodes */ + u32 cpu_startup_core_id; /* Core id */ + u32 cpu_clock_freq; /* cpu_clock */ + u32 nr_cpus; +} __packed; + +struct system_loongson { + u16 vers; /* version of system_loongson */ + u32 ccnuma_smp; /* 0: no numa; 1: has numa */ + u32 sing_double_channel; /* 1:single; 2:double */ +} __packed; + +struct irq_source_routing_table { + u16 vers; + u16 size; + u16 rtr_bus; + u16 rtr_devfn; + u32 vendor; + u32 device; + u32 PIC_type; /* conform use HT or PCI to route to CPU-PIC */ + u64 ht_int_bit; /* 3A: 1<<24; 3B: 1<<16 */ + u64 ht_enable; /* irqs used in this PIC */ + u32 node_id; /* node id: 0x0-0; 0x1-1; 0x10-2; 0x11-3 */ + u64 pci_mem_start_addr; + u64 pci_mem_end_addr; + u64 pci_io_start_addr; + u64 pci_io_end_addr; + u64 pci_config_addr; +} __packed; + +struct interface_info { + u16 vers; /* version of the specificition */ + u16 size; + u8 flag; + char description[64]; +} __packed; + +#define MAX_RESOURCE_NUMBER 128 +struct resource_loongson { + u64 start; /* resource start address */ + u64 end; /* resource end address */ + char name[64]; + u32 flags; +}; + +struct archdev_data {}; /* arch specific additions */ + +struct board_devices { + char name[64]; /* hold the device name */ + u32 num_resources; /* number of device_resource */ + /* for each device's resource */ + struct resource_loongson resource[MAX_RESOURCE_NUMBER]; + /* arch specific additions */ + struct archdev_data archdata; +}; + +struct loongson_special_attribute { + u16 vers; /* version of this special */ + char special_name[64]; /* special_atribute_name */ + u32 loongson_special_type; /* type of special device */ + /* for each device's resource */ + struct resource_loongson resource[MAX_RESOURCE_NUMBER]; +}; + +struct loongson_params { + u64 memory_offset; /* efi_memory_map_loongson struct offset */ + u64 cpu_offset; /* efi_cpuinfo_loongson struct offset */ + u64 system_offset; /* system_loongson struct offset */ + u64 irq_offset; /* irq_source_routing_table struct offset */ + u64 interface_offset; /* interface_info struct offset */ + u64 special_offset; /* loongson_special_attribute struct offset */ + u64 boarddev_table_offset; /* board_devices offset */ +}; + +struct smbios_tables { + u16 vers; /* version of smbios */ + u64 vga_bios; /* vga_bios address */ + struct loongson_params lp; +}; + +struct efi_reset_system_t { + u64 ResetCold; + u64 ResetWarm; + u64 ResetType; + u64 Shutdown; +}; + +struct efi_loongson { + u64 mps; /* MPS table */ + u64 acpi; /* ACPI table (IA64 ext 0.71) */ + u64 acpi20; /* ACPI table (ACPI 2.0) */ + struct smbios_tables smbios; /* SM BIOS table */ + u64 sal_systab; /* SAL system table */ + u64 boot_info; /* boot info table */ +}; + +struct boot_params { + struct efi_loongson efi; + struct efi_reset_system_t reset_system; +}; + +struct loongson_system_configuration { + u32 nr_cpus; + enum loongson_cpu_type cputype; + u64 ht_control_base; + u64 pci_mem_start_addr; + u64 pci_mem_end_addr; + u64 pci_io_base; + u64 restart_addr; + u64 poweroff_addr; + u64 vgabios_addr; +}; + +extern struct efi_memory_map_loongson *loongson_memmap; +extern struct loongson_system_configuration loongson_sysconf; +#endif diff --git a/arch/mips/include/asm/mach-loongson/loongson.h b/arch/mips/include/asm/mach-loongson/loongson.h index b286534..5913ea0 100644 --- a/arch/mips/include/asm/mach-loongson/loongson.h +++ b/arch/mips/include/asm/mach-loongson/loongson.h @@ -24,8 +24,8 @@ extern void mach_prepare_reboot(void); extern void mach_prepare_shutdown(void); /* environment arguments from bootloader */ -extern unsigned long cpu_clock_freq; -extern unsigned long memsize, highmemsize; +extern u32 cpu_clock_freq; +extern u32 memsize, highmemsize; /* loongson-specific command line, env and memory initialization */ extern void __init prom_init_memory(void); diff --git a/arch/mips/loongson/common/env.c b/arch/mips/loongson/common/env.c index 0a18fcf..2fd8716 100644 --- a/arch/mips/loongson/common/env.c +++ b/arch/mips/loongson/common/env.c @@ -18,29 +18,30 @@ * option) any later version. */ #include - #include - #include +#include -unsigned long cpu_clock_freq; +u32 cpu_clock_freq; EXPORT_SYMBOL(cpu_clock_freq); -unsigned long memsize, highmemsize; +struct efi_memory_map_loongson *loongson_memmap; +struct loongson_system_configuration loongson_sysconf; #define parse_even_earlier(res, option, p) \ do { \ unsigned int tmp __maybe_unused; \ \ if (strncmp(option, (char *)p, strlen(option)) == 0) \ - tmp = strict_strtol((char *)p + strlen(option"="), 10, &res); \ + tmp = kstrtou32((char *)p + strlen(option"="), 10, &res); \ } while (0) void __init prom_init_env(void) { /* pmon passes arguments in 32bit pointers */ - int *_prom_envp; - unsigned long bus_clock; unsigned int processor_id; + +#ifndef CONFIG_LEFI_FIRMWARE_INTERFACE + int *_prom_envp; long l; /* firmware arguments are initialized in head.S */ @@ -48,7 +49,6 @@ void __init prom_init_env(void) l = (long)*_prom_envp; while (l != 0) { - parse_even_earlier(bus_clock, "busclock", l); parse_even_earlier(cpu_clock_freq, "cpuclock", l); parse_even_earlier(memsize, "memsize", l); parse_even_earlier(highmemsize, "highmemsize", l); @@ -57,8 +57,43 @@ void __init prom_init_env(void) } if (memsize == 0) memsize = 256; - if (bus_clock == 0) - bus_clock = 66000000; + pr_info("memsize=%u, highmemsize=%u\n", memsize, highmemsize); +#else + struct boot_params *boot_p; + struct loongson_params *loongson_p; + struct efi_cpuinfo_loongson *ecpu; + struct irq_source_routing_table *eirq_source; + + /* firmware arguments are initialized in head.S */ + boot_p = (struct boot_params *)fw_arg2; + loongson_p = &(boot_p->efi.smbios.lp); + + ecpu = (struct efi_cpuinfo_loongson *) + ((u64)loongson_p + loongson_p->cpu_offset); + eirq_source = (struct irq_source_routing_table *) + ((u64)loongson_p + loongson_p->irq_offset); + loongson_memmap = (struct efi_memory_map_loongson *) + ((u64)loongson_p + loongson_p->memory_offset); + + cpu_clock_freq = ecpu->cpu_clock_freq; + loongson_sysconf.cputype = ecpu->cputype; + loongson_sysconf.nr_cpus = ecpu->nr_cpus; + if (ecpu->nr_cpus > NR_CPUS || ecpu->nr_cpus == 0) + loongson_sysconf.nr_cpus = NR_CPUS; + + loongson_sysconf.pci_mem_start_addr = eirq_source->pci_mem_start_addr; + loongson_sysconf.pci_mem_end_addr = eirq_source->pci_mem_end_addr; + loongson_sysconf.pci_io_base = eirq_source->pci_io_start_addr; + + loongson_sysconf.restart_addr = boot_p->reset_system.ResetWarm; + loongson_sysconf.poweroff_addr = boot_p->reset_system.Shutdown; + + loongson_sysconf.ht_control_base = 0x90000EFDFB000000; + loongson_sysconf.vgabios_addr = boot_p->efi.smbios.vga_bios; + pr_debug("Shutdown Addr: %llx, Restart Addr: %llx, VBIOS Addr: %llx\n", + loongson_sysconf.poweroff_addr, loongson_sysconf.restart_addr, + loongson_sysconf.vgabios_addr); +#endif if (cpu_clock_freq == 0) { processor_id = (¤t_cpu_data)->processor_id; switch (processor_id & PRID_REV_MASK) { @@ -68,12 +103,13 @@ void __init prom_init_env(void) case PRID_REV_LOONGSON2F: cpu_clock_freq = 797000000; break; + case PRID_REV_LOONGSON3A: + cpu_clock_freq = 900000000; + break; default: cpu_clock_freq = 100000000; break; } } - - pr_info("busclock=%ld, cpuclock=%ld, memsize=%ld, highmemsize=%ld\n", - bus_clock, cpu_clock_freq, memsize, highmemsize); + pr_info("CpuClock = %u\n", cpu_clock_freq); } diff --git a/arch/mips/loongson/common/init.c b/arch/mips/loongson/common/init.c index ae7af1f..81ba3b4 100644 --- a/arch/mips/loongson/common/init.c +++ b/arch/mips/loongson/common/init.c @@ -17,10 +17,6 @@ unsigned long __maybe_unused _loongson_addrwincfg_base; void __init prom_init(void) { - /* init base address of io space */ - set_io_port_base((unsigned long) - ioremap(LOONGSON_PCIIO_BASE, LOONGSON_PCIIO_SIZE)); - #ifdef CONFIG_CPU_SUPPORTS_ADDRWINCFG _loongson_addrwincfg_base = (unsigned long) ioremap(LOONGSON_ADDRWINCFG_BASE, LOONGSON_ADDRWINCFG_SIZE); @@ -28,6 +24,11 @@ void __init prom_init(void) prom_init_cmdline(); prom_init_env(); + + /* init base address of io space */ + set_io_port_base((unsigned long) + ioremap(LOONGSON_PCIIO_BASE, LOONGSON_PCIIO_SIZE)); + prom_init_memory(); /*init the uart base address */ diff --git a/arch/mips/loongson/common/mem.c b/arch/mips/loongson/common/mem.c index 8626a42..b01d524 100644 --- a/arch/mips/loongson/common/mem.c +++ b/arch/mips/loongson/common/mem.c @@ -11,9 +11,14 @@ #include #include +#include #include #include +#ifndef CONFIG_LEFI_FIRMWARE_INTERFACE + +u32 memsize, highmemsize; + void __init prom_init_memory(void) { add_memory_region(0x0, (memsize << 20), BOOT_MEM_RAM); @@ -49,6 +54,43 @@ void __init prom_init_memory(void) #endif /* !CONFIG_64BIT */ } +#else /* CONFIG_LEFI_FIRMWARE_INTERFACE */ + +void __init prom_init_memory(void) +{ + int i; + u32 node_id; + u32 mem_type; + + /* parse memory information */ + for (i = 0; i < loongson_memmap->nr_map; i++) { + node_id = loongson_memmap->map[i].node_id; + mem_type = loongson_memmap->map[i].mem_type; + + if (node_id == 0) { + switch (mem_type) { + case SYSTEM_RAM_LOW: + add_memory_region(loongson_memmap->map[i].mem_start, + (u64)loongson_memmap->map[i].mem_size << 20, + BOOT_MEM_RAM); + break; + case SYSTEM_RAM_HIGH: + add_memory_region(loongson_memmap->map[i].mem_start, + (u64)loongson_memmap->map[i].mem_size << 20, + BOOT_MEM_RAM); + break; + case MEM_RESERVED: + add_memory_region(loongson_memmap->map[i].mem_start, + (u64)loongson_memmap->map[i].mem_size << 20, + BOOT_MEM_RESERVED); + break; + } + } + } +} + +#endif /* CONFIG_LEFI_FIRMWARE_INTERFACE */ + /* override of arch/mips/mm/cache.c: __uncached_access */ int __uncached_access(struct file *file, unsigned long addr) { diff --git a/arch/mips/loongson/common/pci.c b/arch/mips/loongson/common/pci.c index fa77844..003ab4e 100644 --- a/arch/mips/loongson/common/pci.c +++ b/arch/mips/loongson/common/pci.c @@ -11,6 +11,7 @@ #include #include +#include static struct resource loongson_pci_mem_resource = { .name = "pci memory space", @@ -82,7 +83,10 @@ static int __init pcibios_init(void) setup_pcimap(); loongson_pci_controller.io_map_base = mips_io_port_base; - +#ifdef CONFIG_LEFI_FIRMWARE_INTERFACE + loongson_pci_mem_resource.start = loongson_sysconf.pci_mem_start_addr; + loongson_pci_mem_resource.end = loongson_sysconf.pci_mem_end_addr; +#endif register_pci_controller(&loongson_pci_controller); return 0; diff --git a/arch/mips/loongson/common/reset.c b/arch/mips/loongson/common/reset.c index 65bfbb5..a60715e 100644 --- a/arch/mips/loongson/common/reset.c +++ b/arch/mips/loongson/common/reset.c @@ -16,6 +16,7 @@ #include #include +#include static inline void loongson_reboot(void) { @@ -37,17 +38,37 @@ static inline void loongson_reboot(void) static void loongson_restart(char *command) { +#ifndef CONFIG_LEFI_FIRMWARE_INTERFACE /* do preparation for reboot */ mach_prepare_reboot(); /* reboot via jumping to boot base address */ loongson_reboot(); +#else + void (*fw_restart)(void) = (void *)loongson_sysconf.restart_addr; + + fw_restart(); + while (1) { + if (cpu_wait) + cpu_wait(); + } +#endif } static void loongson_poweroff(void) { +#ifndef CONFIG_LEFI_FIRMWARE_INTERFACE mach_prepare_shutdown(); unreachable(); +#else + void (*fw_poweroff)(void) = (void *)loongson_sysconf.poweroff_addr; + + fw_poweroff(); + while (1) { + if (cpu_wait) + cpu_wait(); + } +#endif } static void loongson_halt(void) -- 1.7.7.3