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-rw-r--r--arch/powerpc/include/asm/firmware.h149
1 files changed, 149 insertions, 0 deletions
diff --git a/arch/powerpc/include/asm/firmware.h b/arch/powerpc/include/asm/firmware.h
new file mode 100644
index 000000000..ed6db13a1
--- /dev/null
+++ b/arch/powerpc/include/asm/firmware.h
@@ -0,0 +1,149 @@
+/* SPDX-License-Identifier: GPL-2.0-or-later */
+/*
+ * Copyright (C) 2001 Ben. Herrenschmidt (benh@kernel.crashing.org)
+ *
+ * Modifications for ppc64:
+ * Copyright (C) 2003 Dave Engebretsen <engebret@us.ibm.com>
+ */
+#ifndef __ASM_POWERPC_FIRMWARE_H
+#define __ASM_POWERPC_FIRMWARE_H
+
+#ifdef __KERNEL__
+
+#include <asm/asm-const.h>
+
+/* firmware feature bitmask values */
+
+#define FW_FEATURE_PFT ASM_CONST(0x0000000000000001)
+#define FW_FEATURE_TCE ASM_CONST(0x0000000000000002)
+#define FW_FEATURE_SPRG0 ASM_CONST(0x0000000000000004)
+#define FW_FEATURE_DABR ASM_CONST(0x0000000000000008)
+#define FW_FEATURE_COPY ASM_CONST(0x0000000000000010)
+#define FW_FEATURE_ASR ASM_CONST(0x0000000000000020)
+#define FW_FEATURE_DEBUG ASM_CONST(0x0000000000000040)
+#define FW_FEATURE_TERM ASM_CONST(0x0000000000000080)
+#define FW_FEATURE_PERF ASM_CONST(0x0000000000000100)
+#define FW_FEATURE_DUMP ASM_CONST(0x0000000000000200)
+#define FW_FEATURE_INTERRUPT ASM_CONST(0x0000000000000400)
+#define FW_FEATURE_MIGRATE ASM_CONST(0x0000000000000800)
+#define FW_FEATURE_PERFMON ASM_CONST(0x0000000000001000)
+#define FW_FEATURE_CRQ ASM_CONST(0x0000000000002000)
+#define FW_FEATURE_VIO ASM_CONST(0x0000000000004000)
+#define FW_FEATURE_RDMA ASM_CONST(0x0000000000008000)
+#define FW_FEATURE_LLAN ASM_CONST(0x0000000000010000)
+#define FW_FEATURE_BULK_REMOVE ASM_CONST(0x0000000000020000)
+#define FW_FEATURE_XDABR ASM_CONST(0x0000000000040000)
+#define FW_FEATURE_PUT_TCE_IND ASM_CONST(0x0000000000080000)
+#define FW_FEATURE_SPLPAR ASM_CONST(0x0000000000100000)
+#define FW_FEATURE_LPAR ASM_CONST(0x0000000000400000)
+#define FW_FEATURE_PS3_LV1 ASM_CONST(0x0000000000800000)
+#define FW_FEATURE_HPT_RESIZE ASM_CONST(0x0000000001000000)
+#define FW_FEATURE_CMO ASM_CONST(0x0000000002000000)
+#define FW_FEATURE_VPHN ASM_CONST(0x0000000004000000)
+#define FW_FEATURE_XCMO ASM_CONST(0x0000000008000000)
+#define FW_FEATURE_OPAL ASM_CONST(0x0000000010000000)
+#define FW_FEATURE_SET_MODE ASM_CONST(0x0000000040000000)
+#define FW_FEATURE_BEST_ENERGY ASM_CONST(0x0000000080000000)
+#define FW_FEATURE_FORM1_AFFINITY ASM_CONST(0x0000000100000000)
+#define FW_FEATURE_PRRN ASM_CONST(0x0000000200000000)
+#define FW_FEATURE_DRMEM_V2 ASM_CONST(0x0000000400000000)
+#define FW_FEATURE_DRC_INFO ASM_CONST(0x0000000800000000)
+#define FW_FEATURE_BLOCK_REMOVE ASM_CONST(0x0000001000000000)
+#define FW_FEATURE_PAPR_SCM ASM_CONST(0x0000002000000000)
+#define FW_FEATURE_ULTRAVISOR ASM_CONST(0x0000004000000000)
+#define FW_FEATURE_STUFF_TCE ASM_CONST(0x0000008000000000)
+#define FW_FEATURE_RPT_INVALIDATE ASM_CONST(0x0000010000000000)
+#define FW_FEATURE_FORM2_AFFINITY ASM_CONST(0x0000020000000000)
+#define FW_FEATURE_ENERGY_SCALE_INFO ASM_CONST(0x0000040000000000)
+#define FW_FEATURE_WATCHDOG ASM_CONST(0x0000080000000000)
+
+#ifndef __ASSEMBLY__
+
+enum {
+#ifdef CONFIG_PPC64
+ FW_FEATURE_PSERIES_POSSIBLE = FW_FEATURE_PFT | FW_FEATURE_TCE |
+ FW_FEATURE_SPRG0 | FW_FEATURE_DABR | FW_FEATURE_COPY |
+ FW_FEATURE_ASR | FW_FEATURE_DEBUG | FW_FEATURE_TERM |
+ FW_FEATURE_PERF | FW_FEATURE_DUMP | FW_FEATURE_INTERRUPT |
+ FW_FEATURE_MIGRATE | FW_FEATURE_PERFMON | FW_FEATURE_CRQ |
+ FW_FEATURE_VIO | FW_FEATURE_RDMA | FW_FEATURE_LLAN |
+ FW_FEATURE_BULK_REMOVE | FW_FEATURE_XDABR |
+ FW_FEATURE_PUT_TCE_IND | FW_FEATURE_STUFF_TCE |
+ FW_FEATURE_SPLPAR | FW_FEATURE_LPAR |
+ FW_FEATURE_CMO | FW_FEATURE_VPHN | FW_FEATURE_XCMO |
+ FW_FEATURE_SET_MODE | FW_FEATURE_BEST_ENERGY |
+ FW_FEATURE_FORM1_AFFINITY | FW_FEATURE_PRRN |
+ FW_FEATURE_HPT_RESIZE | FW_FEATURE_DRMEM_V2 |
+ FW_FEATURE_DRC_INFO | FW_FEATURE_BLOCK_REMOVE |
+ FW_FEATURE_PAPR_SCM | FW_FEATURE_ULTRAVISOR |
+ FW_FEATURE_RPT_INVALIDATE | FW_FEATURE_FORM2_AFFINITY |
+ FW_FEATURE_ENERGY_SCALE_INFO | FW_FEATURE_WATCHDOG,
+ FW_FEATURE_PSERIES_ALWAYS = 0,
+ FW_FEATURE_POWERNV_POSSIBLE = FW_FEATURE_OPAL | FW_FEATURE_ULTRAVISOR,
+ FW_FEATURE_POWERNV_ALWAYS = 0,
+ FW_FEATURE_PS3_POSSIBLE = FW_FEATURE_LPAR | FW_FEATURE_PS3_LV1,
+ FW_FEATURE_PS3_ALWAYS = FW_FEATURE_LPAR | FW_FEATURE_PS3_LV1,
+ FW_FEATURE_NATIVE_POSSIBLE = 0,
+ FW_FEATURE_NATIVE_ALWAYS = 0,
+ FW_FEATURE_POSSIBLE =
+#ifdef CONFIG_PPC_PSERIES
+ FW_FEATURE_PSERIES_POSSIBLE |
+#endif
+#ifdef CONFIG_PPC_POWERNV
+ FW_FEATURE_POWERNV_POSSIBLE |
+#endif
+#ifdef CONFIG_PPC_PS3
+ FW_FEATURE_PS3_POSSIBLE |
+#endif
+#ifdef CONFIG_PPC_HASH_MMU_NATIVE
+ FW_FEATURE_NATIVE_ALWAYS |
+#endif
+ 0,
+ FW_FEATURE_ALWAYS =
+#ifdef CONFIG_PPC_PSERIES
+ FW_FEATURE_PSERIES_ALWAYS &
+#endif
+#ifdef CONFIG_PPC_POWERNV
+ FW_FEATURE_POWERNV_ALWAYS &
+#endif
+#ifdef CONFIG_PPC_PS3
+ FW_FEATURE_PS3_ALWAYS &
+#endif
+#ifdef CONFIG_PPC_HASH_MMU_NATIVE
+ FW_FEATURE_NATIVE_ALWAYS &
+#endif
+ FW_FEATURE_POSSIBLE,
+
+#else /* CONFIG_PPC64 */
+ FW_FEATURE_POSSIBLE = 0,
+ FW_FEATURE_ALWAYS = 0,
+#endif
+};
+
+/* This is used to identify firmware features which are available
+ * to the kernel.
+ */
+extern unsigned long powerpc_firmware_features;
+
+#define firmware_has_feature(feature) \
+ ((FW_FEATURE_ALWAYS & (feature)) || \
+ (FW_FEATURE_POSSIBLE & powerpc_firmware_features & (feature)))
+
+extern void system_reset_fwnmi(void);
+extern void machine_check_fwnmi(void);
+
+/* This is true if we are using the firmware NMI handler (typically LPAR) */
+extern int fwnmi_active;
+extern int ibm_nmi_interlock_token;
+
+extern unsigned int __start___fw_ftr_fixup, __stop___fw_ftr_fixup;
+
+#ifdef CONFIG_PPC_PSERIES
+void pseries_probe_fw_features(void);
+#else
+static inline void pseries_probe_fw_features(void) { }
+#endif
+
+#endif /* __ASSEMBLY__ */
+#endif /* __KERNEL__ */
+#endif /* __ASM_POWERPC_FIRMWARE_H */