add boot partition size

hc

2023-12-11 d2ccde1c8e90d38cee87a1b0309ad2827f3fd30d

 kernel/arch/powerpc/include/asm/lppaca.h
..
..
@@ -1,23 +1,33 @@
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+/* SPDX-License-Identifier: GPL-2.0-or-later */
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 /*
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  * lppaca.h
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  * Copyright (C) 2001  Mike Corrigan IBM Corporation
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- *
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- * This program is free software; you can redistribute it and/or modify
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- * it under the terms of the GNU General Public License as published by
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- * the Free Software Foundation; either version 2 of the License, or
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- * (at your option) any later version.
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- *
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- * This program is distributed in the hope that it will be useful,
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- * but WITHOUT ANY WARRANTY; without even the implied warranty of
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- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
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- * GNU General Public License for more details.
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- *
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- * You should have received a copy of the GNU General Public License
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- * along with this program; if not, write to the Free Software
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- * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA
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  */
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 #ifndef _ASM_POWERPC_LPPACA_H
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 #define _ASM_POWERPC_LPPACA_H
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+
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+/*
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+ * The below VPHN macros are outside the __KERNEL__ check since these are
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+ * used for compiling the vphn selftest in userspace
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+ */
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+
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+/* The H_HOME_NODE_ASSOCIATIVITY h_call returns 6 64-bit registers. */
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+#define VPHN_REGISTER_COUNT 6
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+
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+/*
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+ * 6 64-bit registers unpacked into up to 24 be32 associativity values. To
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+ * form the complete property we have to add the length in the first cell.
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+ */
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+#define VPHN_ASSOC_BUFSIZE (VPHN_REGISTER_COUNT*sizeof(u64)/sizeof(u16) + 1)
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+
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+/*
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+ * The H_HOME_NODE_ASSOCIATIVITY hcall takes two values for flags:
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+ * 1 for retrieving associativity information for a guest cpu
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+ * 2 for retrieving associativity information for a host/hypervisor cpu
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+ */
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+#define VPHN_FLAG_VCPU	1
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+#define VPHN_FLAG_PCPU	2
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+
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 #ifdef __KERNEL__
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32
 
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 /*
..
..
@@ -135,34 +145,7 @@
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 	} save_area[SLB_NUM_BOLTED];
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 } ____cacheline_aligned;
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147
 
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-/*
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- * Layout of entries in the hypervisor's dispatch trace log buffer.
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- */
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-struct dtl_entry {
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-	u8	dispatch_reason;
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-	u8	preempt_reason;
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-	__be16	processor_id;
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-	__be32	enqueue_to_dispatch_time;
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-	__be32	ready_to_enqueue_time;
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-	__be32	waiting_to_ready_time;
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-	__be64	timebase;
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-	__be64	fault_addr;
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-	__be64	srr0;
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-	__be64	srr1;
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-};
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-
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-#define DISPATCH_LOG_BYTES	4096	/* bytes per cpu */
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-#define N_DISPATCH_LOG		(DISPATCH_LOG_BYTES / sizeof(struct dtl_entry))
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-
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-extern struct kmem_cache *dtl_cache;
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-
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-/*
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- * When CONFIG_VIRT_CPU_ACCOUNTING_NATIVE = y, the cpu accounting code controls
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- * reading from the dispatch trace log.  If other code wants to consume
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- * DTL entries, it can set this pointer to a function that will get
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- * called once for each DTL entry that gets processed.
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- */
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-extern void (*dtl_consumer)(struct dtl_entry *entry, u64 index);
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+extern long hcall_vphn(unsigned long cpu, u64 flags, __be32 *associativity);
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 #endif /* CONFIG_PPC_BOOK3S */
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 #endif /* __KERNEL__ */