From: Bin Meng <bmeng.cn@gmail.com> To: Alistair Francis <Alistair.Francis@wdc.com>, Palmer Dabbelt <palmer@sifive.com>, qemu-devel@nongnu.org, qemu-riscv@nongnu.org Subject: [Qemu-devel] [PATCH v4 13/28] riscv: hart: Add a "hartid-base" property to RISC-V hart array Date: Sun, 18 Aug 2019 22:11:46 -0700 Message-ID: <1566191521-7820-14-git-send-email-bmeng.cn@gmail.com> (raw) In-Reply-To: <1566191521-7820-1-git-send-email-bmeng.cn@gmail.com> At present each hart's hartid in a RISC-V hart array is assigned the same value of its index in the hart array. But for a system that has multiple hart arrays, this is not the case any more. Add a new "hartid-base" property so that hartid number can be assigned based on the property value. Signed-off-by: Bin Meng <bmeng.cn@gmail.com> --- Changes in v4: - new patch to add a "hartid-base" property to RISC-V hart array Changes in v3: None Changes in v2: None hw/riscv/riscv_hart.c | 8 +++++--- include/hw/riscv/riscv_hart.h | 1 + 2 files changed, 6 insertions(+), 3 deletions(-) diff --git a/hw/riscv/riscv_hart.c b/hw/riscv/riscv_hart.c index 9deef869..52ab86a 100644 --- a/hw/riscv/riscv_hart.c +++ b/hw/riscv/riscv_hart.c @@ -27,6 +27,7 @@ static Property riscv_harts_props[] = { DEFINE_PROP_UINT32("num-harts", RISCVHartArrayState, num_harts, 1), + DEFINE_PROP_UINT32("hartid-base", RISCVHartArrayState, hartid_base, 0), DEFINE_PROP_STRING("cpu-type", RISCVHartArrayState, cpu_type), DEFINE_PROP_END_OF_LIST(), }; @@ -37,7 +38,7 @@ static void riscv_harts_cpu_reset(void *opaque) cpu_reset(CPU(cpu)); } -static void riscv_hart_realize(RISCVHartArrayState *s, int idx, +static void riscv_hart_realize(RISCVHartArrayState *s, int idx, uint32_t hartid, char *cpu_type, Error **errp) { Error *err = NULL; @@ -45,7 +46,7 @@ static void riscv_hart_realize(RISCVHartArrayState *s, int idx, object_initialize_child(OBJECT(s), "harts[*]", &s->harts[idx], sizeof(RISCVCPU), cpu_type, &error_abort, NULL); - s->harts[idx].env.mhartid = idx; + s->harts[idx].env.mhartid = hartid; qemu_register_reset(riscv_harts_cpu_reset, &s->harts[idx]); object_property_set_bool(OBJECT(&s->harts[idx]), true, "realized", &err); @@ -58,12 +59,13 @@ static void riscv_hart_realize(RISCVHartArrayState *s, int idx, static void riscv_harts_realize(DeviceState *dev, Error **errp) { RISCVHartArrayState *s = RISCV_HART_ARRAY(dev); + uint32_t hartid = s->hartid_base; int n; s->harts = g_new0(RISCVCPU, s->num_harts); for (n = 0; n < s->num_harts; n++) { - riscv_hart_realize(s, n, s->cpu_type, errp); + riscv_hart_realize(s, n, hartid + n, s->cpu_type, errp); } } diff --git a/include/hw/riscv/riscv_hart.h b/include/hw/riscv/riscv_hart.h index 0671d88..1984e30 100644 --- a/include/hw/riscv/riscv_hart.h +++ b/include/hw/riscv/riscv_hart.h @@ -32,6 +32,7 @@ typedef struct RISCVHartArrayState { /*< public >*/ uint32_t num_harts; + uint32_t hartid_base; char *cpu_type; RISCVCPU *harts; } RISCVHartArrayState; -- 2.7.4
next prev parent reply index Thread overview: 36+ messages / expand[flat|nested] mbox.gz Atom feed top 2019-08-19 5:11 [Qemu-devel] [PATCH v4 00/28] riscv: sifive_u: Improve the emulation fidelity of sifive_u machine Bin Meng 2019-08-19 5:11 ` [Qemu-devel] [PATCH v4 01/28] riscv: hw: Remove superfluous "linux, phandle" property Bin Meng 2019-08-19 5:11 ` [Qemu-devel] [PATCH v4 02/28] riscv: hw: Use qemu_fdt_setprop_cell() for property with only 1 cell Bin Meng 2019-08-19 5:11 ` [Qemu-devel] [PATCH v4 03/28] riscv: hw: Remove not needed PLIC properties in device tree Bin Meng 2019-08-19 5:11 ` [Qemu-devel] [PATCH v4 04/28] riscv: hw: Change create_fdt() to return void Bin Meng 2019-08-19 5:11 ` [Qemu-devel] [PATCH v4 05/28] riscv: roms: Remove executable attribute of opensbi images Bin Meng 2019-08-19 20:08 ` Alistair Francis 2019-08-19 5:11 ` [Qemu-devel] [PATCH v4 06/28] riscv: sifive_u: Remove the unnecessary include of prci header Bin Meng 2019-08-19 5:11 ` [Qemu-devel] [PATCH v4 07/28] riscv: sifive: Rename sifive_prci.{c, h} to sifive_e_prci.{c, h} Bin Meng 2019-08-19 5:11 ` [Qemu-devel] [PATCH v4 08/28] riscv: sifive_e: prci: Fix a typo of hfxosccfg register programming Bin Meng 2019-08-19 5:11 ` [Qemu-devel] [PATCH v4 09/28] riscv: sifive_e: prci: Update the PRCI register block size Bin Meng 2019-08-19 5:11 ` [Qemu-devel] [PATCH v4 11/28] riscv: Add a sifive_cpu.h to include both E and U cpu type defines Bin Meng 2019-08-19 5:11 ` [Qemu-devel] [PATCH v4 12/28] riscv: hart: Extract hart realize to a separate routine Bin Meng 2019-08-19 5:11 ` Bin Meng [this message] 2019-08-22 22:40 ` [Qemu-devel] [PATCH v4 13/28] riscv: hart: Add a "hartid-base" property to RISC-V hart array Alistair Francis 2019-08-23 1:57 ` Bin Meng 2019-08-19 5:11 ` [Qemu-devel] [PATCH v4 14/28] riscv: sifive_u: Update hart configuration to reflect the real FU540 SoC Bin Meng 2019-08-19 5:11 ` [Qemu-devel] [PATCH v4 15/28] riscv: sifive_u: Set the minimum number of cpus to 2 Bin Meng 2019-08-19 5:11 ` [Qemu-devel] [PATCH v4 16/28] riscv: sifive_u: Update PLIC hart topology configuration string Bin Meng 2019-08-19 5:11 ` [Qemu-devel] [PATCH v4 17/28] riscv: sifive: Implement PRCI model for FU540 Bin Meng 2019-08-19 20:21 ` Alistair Francis 2019-08-19 5:11 ` [Qemu-devel] [PATCH v4 18/28] riscv: sifive_u: Generate hfclk and rtcclk nodes Bin Meng 2019-08-19 20:22 ` Alistair Francis 2019-08-19 5:11 ` [Qemu-devel] [PATCH v4 19/28] riscv: sifive_u: Add PRCI block to the SoC Bin Meng 2019-08-19 5:11 ` [Qemu-devel] [PATCH v4 20/28] riscv: sifive_u: Reference PRCI clocks in UART and ethernet nodes Bin Meng 2019-08-20 18:26 ` Alistair Francis 2019-08-19 5:11 ` [Qemu-devel] [PATCH v4 21/28] riscv: sifive_u: Update UART base addresses and IRQs Bin Meng 2019-08-19 5:11 ` [Qemu-devel] [PATCH v4 22/28] riscv: sifive_u: Change UART node name in device tree Bin Meng 2019-08-19 5:11 ` [Qemu-devel] [PATCH v4 23/28] riscv: roms: Update default bios for sifive_u machine Bin Meng 2019-08-19 5:11 ` [Qemu-devel] [PATCH v4 24/28] riscv: sifive: Implement a model for SiFive FU540 OTP Bin Meng 2019-08-22 22:41 ` Alistair Francis 2019-08-19 5:11 ` [Qemu-devel] [PATCH v4 25/28] riscv: sifive_u: Instantiate OTP memory with a serial number Bin Meng 2019-08-19 5:11 ` [Qemu-devel] [PATCH v4 26/28] riscv: sifive_u: Fix broken GEM support Bin Meng 2019-08-19 5:12 ` [Qemu-devel] [PATCH v4 27/28] riscv: sifive_u: Remove handcrafted clock nodes for UART and ethernet Bin Meng 2019-08-22 22:39 ` Alistair Francis 2019-08-19 5:12 ` [Qemu-devel] [PATCH v4 28/28] riscv: sifive_u: Update model and compatible strings in device tree Bin Meng
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