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File _service:tar_scm:arm-virt-acpi-Factor-out-CPPC-building-from-DSDT-CPU.patch of Package qemu
From 2d5040ce21af5fc02a8588456be7316fcd5bc2a0 Mon Sep 17 00:00:00 2001 From: Keqian Zhu <zhukeqian1@huawei.com> Date: Tue, 2 Apr 2024 16:36:38 +0800 Subject: [PATCH] arm/virt/acpi: Factor out CPPC building from DSDT CPU aml When CPU hotplug is enabled, we will use build_cpus_aml instead of acpi_dsdt_add_cpus, so factor out CPPC building to reuse it. Signed-off-by: Keqian Zhu <zhukeqian1@huawei.com> --- hw/arm/virt-acpi-build.c | 34 ++++++++++++++++++++-------------- 1 file changed, 20 insertions(+), 14 deletions(-) diff --git a/hw/arm/virt-acpi-build.c b/hw/arm/virt-acpi-build.c index 48fc77fb83..084c8abc7c 100644 --- a/hw/arm/virt-acpi-build.c +++ b/hw/arm/virt-acpi-build.c @@ -123,8 +123,23 @@ static void acpi_dsdt_add_cppc(Aml *dev, uint64_t cpu_base, int *regs_offset) aml_append(dev, aml_name_decl("_CPC", cpc)); } -static void acpi_dsdt_add_cpus(Aml *scope, VirtMachineState *vms, - const MemMapEntry *cppc_memmap) +static void virt_acpi_dsdt_cpu_cppc(int ncpu, int num_cpu, Aml *dev) { + VirtMachineState *vms = VIRT_MACHINE(qdev_get_machine()); + const MemMapEntry *cppc_memmap = &vms->memmap[VIRT_CPUFREQ]; + + /* + * Append _CPC and _PSD to support CPU frequence show + * Check CPPC available by DESIRED_PERF register + */ + if (cppc_regs_offset[DESIRED_PERF] != -1) { + acpi_dsdt_add_cppc(dev, + cppc_memmap->base + ncpu * CPPC_REG_PER_CPU_STRIDE, + cppc_regs_offset); + acpi_dsdt_add_psd(dev, num_cpu); + } +} + +static void acpi_dsdt_add_cpus(Aml *scope, VirtMachineState *vms) { MachineState *ms = MACHINE(vms); uint16_t i; @@ -134,18 +149,9 @@ static void acpi_dsdt_add_cpus(Aml *scope, VirtMachineState *vms, aml_append(dev, aml_name_decl("_HID", aml_string("ACPI0007"))); aml_append(dev, aml_name_decl("_UID", aml_int(i))); - /* - * Append _CPC and _PSD to support CPU frequence show - * Check CPPC available by DESIRED_PERF register - */ - if (cppc_regs_offset[DESIRED_PERF] != -1) { - acpi_dsdt_add_cppc(dev, - cppc_memmap->base + i * CPPC_REG_PER_CPU_STRIDE, - cppc_regs_offset); - acpi_dsdt_add_psd(dev, ms->smp.cpus); - } + virt_acpi_dsdt_cpu_cppc(i, ms->smp.cpus, dev); - aml_append(scope, dev); + aml_append(scope, dev); } } @@ -931,7 +937,7 @@ build_dsdt(GArray *table_data, BIOSLinker *linker, VirtMachineState *vms) * the RTC ACPI device at all when using UEFI. */ scope = aml_scope("\\_SB"); - acpi_dsdt_add_cpus(scope, vms, &memmap[VIRT_CPUFREQ]); + acpi_dsdt_add_cpus(scope, vms); acpi_dsdt_add_uart(scope, &memmap[VIRT_UART], (irqmap[VIRT_UART] + ARM_SPI_BASE)); if (vmc->acpi_expose_flash) { -- 2.27.0
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