~hc/RK356X_SDK_RELEASE.git

..	..	@@ -1,23 +1,33 @@
	1	+/* SPDX-License-Identifier: GPL-2.0-or-later */
1	2	/*
2	3	* lppaca.h
3	4	* Copyright (C) 2001 Mike Corrigan IBM Corporation
4		- *
5		- * This program is free software; you can redistribute it and/or modify
6		- * it under the terms of the GNU General Public License as published by
7		- * the Free Software Foundation; either version 2 of the License, or
8		- * (at your option) any later version.
9		- *
10		- * This program is distributed in the hope that it will be useful,
11		- * but WITHOUT ANY WARRANTY; without even the implied warranty of
12		- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13		- * GNU General Public License for more details.
14		- *
15		- * You should have received a copy of the GNU General Public License
16		- * along with this program; if not, write to the Free Software
17		- * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
18	5	*/
19	6	#ifndef _ASM_POWERPC_LPPACA_H
20	7	#define _ASM_POWERPC_LPPACA_H
	8	+
	9	+/*
	10	+ * The below VPHN macros are outside the __KERNEL__ check since these are
	11	+ * used for compiling the vphn selftest in userspace
	12	+ */
	13	+
	14	+/* The H_HOME_NODE_ASSOCIATIVITY h_call returns 6 64-bit registers. */
	15	+#define VPHN_REGISTER_COUNT 6
	16	+
	17	+/*
	18	+ * 6 64-bit registers unpacked into up to 24 be32 associativity values. To
	19	+ * form the complete property we have to add the length in the first cell.
	20	+ */
	21	+#define VPHN_ASSOC_BUFSIZE (VPHN_REGISTER_COUNT*sizeof(u64)/sizeof(u16) + 1)
	22	+
	23	+/*
	24	+ * The H_HOME_NODE_ASSOCIATIVITY hcall takes two values for flags:
	25	+ * 1 for retrieving associativity information for a guest cpu
	26	+ * 2 for retrieving associativity information for a host/hypervisor cpu
	27	+ */
	28	+#define VPHN_FLAG_VCPU 1
	29	+#define VPHN_FLAG_PCPU 2
	30	+
21	31	#ifdef __KERNEL__
22	32
23	33	/*
..	..	@@ -35,6 +45,7 @@
35	45	#include <asm/types.h>
36	46	#include <asm/mmu.h>
37	47	#include <asm/firmware.h>
	48	+#include <asm/paca.h>
38	49
39	50	/*
40	51	* The lppaca is the "virtual processor area" registered with the hypervisor,
..	..	@@ -113,12 +124,22 @@
113	124	*/
114	125	#define LPPACA_OLD_SHARED_PROC 2
115	126
116		-static inline bool lppaca_shared_proc(struct lppaca *l)
	127	+#ifdef CONFIG_PPC_PSERIES
	128	+/*
	129	+ * All CPUs should have the same shared proc value, so directly access the PACA
	130	+ * to avoid false positives from DEBUG_PREEMPT.
	131	+ */
	132	+static inline bool lppaca_shared_proc(void)
117	133	{
	134	+ struct lppaca *l = local_paca->lppaca_ptr;
	135	+
118	136	if (!firmware_has_feature(FW_FEATURE_SPLPAR))
119	137	return false;
120	138	return !!(l->__old_status & LPPACA_OLD_SHARED_PROC);
121	139	}
	140	+
	141	+#define get_lppaca() (get_paca()->lppaca_ptr)
	142	+#endif
122	143
123	144	/*
124	145	* SLB shadow buffer structure as defined in the PAPR. The save_area
..	..	@@ -135,34 +156,7 @@
135	156	} save_area[SLB_NUM_BOLTED];
136	157	} ____cacheline_aligned;
137	158
138		-/*
139		- * Layout of entries in the hypervisor's dispatch trace log buffer.
140		- */
141		-struct dtl_entry {
142		- u8 dispatch_reason;
143		- u8 preempt_reason;
144		- __be16 processor_id;
145		- __be32 enqueue_to_dispatch_time;
146		- __be32 ready_to_enqueue_time;
147		- __be32 waiting_to_ready_time;
148		- __be64 timebase;
149		- __be64 fault_addr;
150		- __be64 srr0;
151		- __be64 srr1;
152		-};
153		-
154		-#define DISPATCH_LOG_BYTES 4096 /* bytes per cpu */
155		-#define N_DISPATCH_LOG (DISPATCH_LOG_BYTES / sizeof(struct dtl_entry))
156		-
157		-extern struct kmem_cache *dtl_cache;
158		-
159		-/*
160		- * When CONFIG_VIRT_CPU_ACCOUNTING_NATIVE = y, the cpu accounting code controls
161		- * reading from the dispatch trace log. If other code wants to consume
162		- * DTL entries, it can set this pointer to a function that will get
163		- * called once for each DTL entry that gets processed.
164		- */
165		-extern void (dtl_consumer)(struct dtl_entry entry, u64 index);
	159	+extern long hcall_vphn(unsigned long cpu, u64 flags, __be32 *associativity);
166	160
167	161	#endif /* CONFIG_PPC_BOOK3S */
168	162	#endif /* __KERNEL__ */