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08 Dec 2020 14:40:23 -0800 IronPort-SDR: K9ShNDooizwldMSjUSNHuBRVC2Is3micfh+zPNkIcsl26LFMWQd8DVxM3R02jKWiojYze7F8St rpdfLs0Ry26A== WDCIronportException: Internal Received: from usa001386.ad.shared (HELO risc6-mainframe.hgst.com) ([10.86.61.239]) by uls-op-cesaip01.wdc.com with ESMTP; 08 Dec 2020 14:56:23 -0800 From: Alistair Francis To: qemu-devel@nongnu.org, qemu-riscv@nongnu.org Subject: [PATCH v2 05/15] hw/riscv: boot: Remove compile time XLEN checks Date: Tue, 8 Dec 2020 14:56:22 -0800 Message-Id: <64d6afcb62eb7b27b863436219cf1a4e28018de1.1607467819.git.alistair.francis@wdc.com> X-Mailer: git-send-email 2.29.2 In-Reply-To: References: MIME-Version: 1.0 Received-SPF: pass client-ip=216.71.153.141; envelope-from=prvs=6040d5def=alistair.francis@wdc.com; helo=esa3.hgst.iphmx.com X-Spam_score_int: -43 X-Spam_score: -4.4 X-Spam_bar: ---- X-Spam_report: (-4.4 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_MED=-2.3, SPF_HELO_PASS=-0.001, SPF_PASS=-0.001 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: alistair.francis@wdc.com, bmeng.cn@gmail.com, palmer@dabbelt.com, alistair23@gmail.com Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: "Qemu-devel" Signed-off-by: Alistair Francis Reviewed-by: Bin Meng Tested-by: Bin Meng --- include/hw/riscv/boot.h | 8 +++--- hw/riscv/boot.c | 55 ++++++++++++++++++++++------------------- hw/riscv/sifive_u.c | 2 +- hw/riscv/spike.c | 3 ++- hw/riscv/virt.c | 2 +- 5 files changed, 39 insertions(+), 31 deletions(-) diff --git a/include/hw/riscv/boot.h b/include/hw/riscv/boot.h index 0b01988727..b6d37a91d6 100644 --- a/include/hw/riscv/boot.h +++ b/include/hw/riscv/boot.h @@ -41,10 +41,12 @@ target_ulong riscv_load_kernel(const char *kernel_filename, hwaddr riscv_load_initrd(const char *filename, uint64_t mem_size, uint64_t kernel_entry, hwaddr *start); uint32_t riscv_load_fdt(hwaddr dram_start, uint64_t dram_size, void *fdt); -void riscv_setup_rom_reset_vec(hwaddr saddr, hwaddr rom_base, - hwaddr rom_size, uint64_t kernel_entry, +void riscv_setup_rom_reset_vec(MachineState *machine, hwaddr saddr, + hwaddr rom_base, hwaddr rom_size, + uint64_t kernel_entry, uint32_t fdt_load_addr, void *fdt); -void riscv_rom_copy_firmware_info(hwaddr rom_base, hwaddr rom_size, +void riscv_rom_copy_firmware_info(MachineState *machine, hwaddr rom_base, + hwaddr rom_size, uint32_t reset_vec_size, uint64_t kernel_entry); diff --git a/hw/riscv/boot.c b/hw/riscv/boot.c index 4165cc8d32..e5af3001e9 100644 --- a/hw/riscv/boot.c +++ b/hw/riscv/boot.c @@ -32,12 +32,6 @@ #include -#if defined(TARGET_RISCV32) -#define fw_dynamic_info_data(__val) cpu_to_le32(__val) -#else -#define fw_dynamic_info_data(__val) cpu_to_le64(__val) -#endif - bool riscv_is_32_bit(MachineState *machine) { fprintf(stderr, "machine->cpu_type[8]: %c\n", machine->cpu_type[8]); @@ -228,16 +222,24 @@ uint32_t riscv_load_fdt(hwaddr dram_base, uint64_t mem_size, void *fdt) return fdt_addr; } -void riscv_rom_copy_firmware_info(hwaddr rom_base, hwaddr rom_size, - uint32_t reset_vec_size, uint64_t kernel_entry) +void riscv_rom_copy_firmware_info(MachineState *machine, hwaddr rom_base, + hwaddr rom_size, uint32_t reset_vec_size, + uint64_t kernel_entry) { struct fw_dynamic_info dinfo; size_t dinfo_len; - dinfo.magic = fw_dynamic_info_data(FW_DYNAMIC_INFO_MAGIC_VALUE); - dinfo.version = fw_dynamic_info_data(FW_DYNAMIC_INFO_VERSION); - dinfo.next_mode = fw_dynamic_info_data(FW_DYNAMIC_INFO_NEXT_MODE_S); - dinfo.next_addr = fw_dynamic_info_data(kernel_entry); + if (riscv_is_32_bit(machine)) { + dinfo.magic = cpu_to_le32(FW_DYNAMIC_INFO_MAGIC_VALUE); + dinfo.version = cpu_to_le32(FW_DYNAMIC_INFO_VERSION); + dinfo.next_mode = cpu_to_le32(FW_DYNAMIC_INFO_NEXT_MODE_S); + dinfo.next_addr = cpu_to_le32(kernel_entry); + } else { + dinfo.magic = cpu_to_le64(FW_DYNAMIC_INFO_MAGIC_VALUE); + dinfo.version = cpu_to_le64(FW_DYNAMIC_INFO_VERSION); + dinfo.next_mode = cpu_to_le64(FW_DYNAMIC_INFO_NEXT_MODE_S); + dinfo.next_addr = cpu_to_le64(kernel_entry); + } dinfo.options = 0; dinfo.boot_hart = 0; dinfo_len = sizeof(dinfo); @@ -257,28 +259,24 @@ void riscv_rom_copy_firmware_info(hwaddr rom_base, hwaddr rom_size, &address_space_memory); } -void riscv_setup_rom_reset_vec(hwaddr start_addr, hwaddr rom_base, - hwaddr rom_size, uint64_t kernel_entry, +void riscv_setup_rom_reset_vec(MachineState *machine, hwaddr start_addr, + hwaddr rom_base, hwaddr rom_size, + uint64_t kernel_entry, uint32_t fdt_load_addr, void *fdt) { int i; uint32_t start_addr_hi32 = 0x00000000; - #if defined(TARGET_RISCV64) - start_addr_hi32 = start_addr >> 32; - #endif + if (!riscv_is_32_bit(machine)) { + start_addr_hi32 = start_addr >> 32; + } /* reset vector */ uint32_t reset_vec[10] = { 0x00000297, /* 1: auipc t0, %pcrel_hi(fw_dyn) */ 0x02828613, /* addi a2, t0, %pcrel_lo(1b) */ 0xf1402573, /* csrr a0, mhartid */ -#if defined(TARGET_RISCV32) - 0x0202a583, /* lw a1, 32(t0) */ - 0x0182a283, /* lw t0, 24(t0) */ -#elif defined(TARGET_RISCV64) - 0x0202b583, /* ld a1, 32(t0) */ - 0x0182b283, /* ld t0, 24(t0) */ -#endif + 0, + 0, 0x00028067, /* jr t0 */ start_addr, /* start: .dword */ start_addr_hi32, @@ -286,6 +284,13 @@ void riscv_setup_rom_reset_vec(hwaddr start_addr, hwaddr rom_base, 0x00000000, /* fw_dyn: */ }; + if (riscv_is_32_bit(machine)) { + reset_vec[3] = 0x0202a583; /* lw a1, 32(t0) */ + reset_vec[4] = 0x0182a283; /* lw t0, 24(t0) */ + } else { + reset_vec[3] = 0x0202b583; /* ld a1, 32(t0) */ + reset_vec[4] = 0x0182b283; /* ld t0, 24(t0) */ + } /* copy in the reset vector in little_endian byte order */ for (i = 0; i < ARRAY_SIZE(reset_vec); i++) { @@ -293,7 +298,7 @@ void riscv_setup_rom_reset_vec(hwaddr start_addr, hwaddr rom_base, } rom_add_blob_fixed_as("mrom.reset", reset_vec, sizeof(reset_vec), rom_base, &address_space_memory); - riscv_rom_copy_firmware_info(rom_base, rom_size, sizeof(reset_vec), + riscv_rom_copy_firmware_info(machine, rom_base, rom_size, sizeof(reset_vec), kernel_entry); return; diff --git a/hw/riscv/sifive_u.c b/hw/riscv/sifive_u.c index 2f19a9cda2..d550befadb 100644 --- a/hw/riscv/sifive_u.c +++ b/hw/riscv/sifive_u.c @@ -550,7 +550,7 @@ static void sifive_u_machine_init(MachineState *machine) rom_add_blob_fixed_as("mrom.reset", reset_vec, sizeof(reset_vec), memmap[SIFIVE_U_DEV_MROM].base, &address_space_memory); - riscv_rom_copy_firmware_info(memmap[SIFIVE_U_DEV_MROM].base, + riscv_rom_copy_firmware_info(machine, memmap[SIFIVE_U_DEV_MROM].base, memmap[SIFIVE_U_DEV_MROM].size, sizeof(reset_vec), kernel_entry); } diff --git a/hw/riscv/spike.c b/hw/riscv/spike.c index 29f07f47b1..875f371f0f 100644 --- a/hw/riscv/spike.c +++ b/hw/riscv/spike.c @@ -296,7 +296,8 @@ static void spike_board_init(MachineState *machine) fdt_load_addr = riscv_load_fdt(memmap[SPIKE_DRAM].base, machine->ram_size, s->fdt); /* load the reset vector */ - riscv_setup_rom_reset_vec(memmap[SPIKE_DRAM].base, memmap[SPIKE_MROM].base, + riscv_setup_rom_reset_vec(machine, memmap[SPIKE_DRAM].base, + memmap[SPIKE_MROM].base, memmap[SPIKE_MROM].size, kernel_entry, fdt_load_addr, s->fdt); diff --git a/hw/riscv/virt.c b/hw/riscv/virt.c index 995e1c35f1..f8c5509f13 100644 --- a/hw/riscv/virt.c +++ b/hw/riscv/virt.c @@ -656,7 +656,7 @@ static void virt_machine_init(MachineState *machine) fdt_load_addr = riscv_load_fdt(memmap[VIRT_DRAM].base, machine->ram_size, s->fdt); /* load the reset vector */ - riscv_setup_rom_reset_vec(start_addr, virt_memmap[VIRT_MROM].base, + riscv_setup_rom_reset_vec(machine, start_addr, virt_memmap[VIRT_MROM].base, virt_memmap[VIRT_MROM].size, kernel_entry, fdt_load_addr, s->fdt);