Adding upstream version 6.6.15.upstream/6.6.15

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 84 insertions, 0 deletions

diff --git a/arch/riscv/include/asm/acpi.h b/arch/riscv/include/asm/acpi.h
new file mode 100644
index 0000000000..d5604d2073
--- /dev/null
+++ b/arch/riscv/include/asm/acpi.h
@@ -0,0 +1,84 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+/*
+ *  Copyright (C) 2013-2014, Linaro Ltd.
+ *	Author: Al Stone <al.stone@linaro.org>
+ *	Author: Graeme Gregory <graeme.gregory@linaro.org>
+ *	Author: Hanjun Guo <hanjun.guo@linaro.org>
+ *
+ *  Copyright (C) 2021-2023, Ventana Micro Systems Inc.
+ *	Author: Sunil V L <sunilvl@ventanamicro.com>
+ */
+
+#ifndef _ASM_ACPI_H
+#define _ASM_ACPI_H
+
+/* Basic configuration for ACPI */
+#ifdef CONFIG_ACPI
+
+typedef u64 phys_cpuid_t;
+#define PHYS_CPUID_INVALID INVALID_HARTID
+
+/* ACPI table mapping after acpi_permanent_mmap is set */
+void __iomem *acpi_os_ioremap(acpi_physical_address phys, acpi_size size);
+#define acpi_os_ioremap acpi_os_ioremap
+
+#define acpi_strict 1	/* No out-of-spec workarounds on RISC-V */
+extern int acpi_disabled;
+extern int acpi_noirq;
+extern int acpi_pci_disabled;
+
+static inline void disable_acpi(void)
+{
+	acpi_disabled = 1;
+	acpi_pci_disabled = 1;
+	acpi_noirq = 1;
+}
+
+static inline void enable_acpi(void)
+{
+	acpi_disabled = 0;
+	acpi_pci_disabled = 0;
+	acpi_noirq = 0;
+}
+
+/*
+ * The ACPI processor driver for ACPI core code needs this macro
+ * to find out whether this cpu was already mapped (mapping from CPU hardware
+ * ID to CPU logical ID) or not.
+ */
+#define cpu_physical_id(cpu) cpuid_to_hartid_map(cpu)
+
+/*
+ * Since MADT must provide at least one RINTC structure, the
+ * CPU will be always available in MADT on RISC-V.
+ */
+static inline bool acpi_has_cpu_in_madt(void)
+{
+	return true;
+}
+
+static inline void arch_fix_phys_package_id(int num, u32 slot) { }
+
+void acpi_init_rintc_map(void);
+struct acpi_madt_rintc *acpi_cpu_get_madt_rintc(int cpu);
+u32 get_acpi_id_for_cpu(int cpu);
+int acpi_get_riscv_isa(struct acpi_table_header *table,
+		       unsigned int cpu, const char **isa);
+
+static inline int acpi_numa_get_nid(unsigned int cpu) { return NUMA_NO_NODE; }
+#else
+static inline void acpi_init_rintc_map(void) { }
+static inline struct acpi_madt_rintc *acpi_cpu_get_madt_rintc(int cpu)
+{
+	return NULL;
+}
+
+static inline int acpi_get_riscv_isa(struct acpi_table_header *table,
+				     unsigned int cpu, const char **isa)
+{
+	return -EINVAL;
+}
+
+#endif /* CONFIG_ACPI */
+
+#endif /*_ASM_ACPI_H*/