cachepc-linux

Fork of AMDESE/linux with modifications for CachePC side-channel attack
git clone https://git.sinitax.com/sinitax/cachepc-linux
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rtas-types.h (2939B)

      1/* SPDX-License-Identifier: GPL-2.0-or-later */
      2#ifndef _ASM_POWERPC_RTAS_TYPES_H
      3#define _ASM_POWERPC_RTAS_TYPES_H
      4
      5#include <linux/spinlock_types.h>
      6
      7typedef __be32 rtas_arg_t;
      8
      9struct rtas_args {
     10	__be32 token;
     11	__be32 nargs;
     12	__be32 nret;
     13	rtas_arg_t args[16];
     14	rtas_arg_t *rets;     /* Pointer to return values in args[]. */
     15};
     16
     17struct rtas_t {
     18	unsigned long entry;		/* physical address pointer */
     19	unsigned long base;		/* physical address pointer */
     20	unsigned long size;
     21	arch_spinlock_t lock;
     22	struct rtas_args args;
     23	struct device_node *dev;	/* virtual address pointer */
     24};
     25
     26struct rtas_error_log {
     27	/* Byte 0 */
     28	u8		byte0;			/* Architectural version */
     29
     30	/* Byte 1 */
     31	u8		byte1;
     32	/* XXXXXXXX
     33	 * XXX		3: Severity level of error
     34	 *    XX	2: Degree of recovery
     35	 *      X	1: Extended log present?
     36	 *       XX	2: Reserved
     37	 */
     38
     39	/* Byte 2 */
     40	u8		byte2;
     41	/* XXXXXXXX
     42	 * XXXX		4: Initiator of event
     43	 *     XXXX	4: Target of failed operation
     44	 */
     45	u8		byte3;			/* General event or error*/
     46	__be32		extended_log_length;	/* length in bytes */
     47	unsigned char	buffer[1];		/* Start of extended log */
     48						/* Variable length.      */
     49};
     50
     51/* RTAS general extended event log, Version 6. The extended log starts
     52 * from "buffer" field of struct rtas_error_log defined above.
     53 */
     54struct rtas_ext_event_log_v6 {
     55	/* Byte 0 */
     56	u8 byte0;
     57	/* XXXXXXXX
     58	 * X		1: Log valid
     59	 *  X		1: Unrecoverable error
     60	 *   X		1: Recoverable (correctable or successfully retried)
     61	 *    X		1: Bypassed unrecoverable error (degraded operation)
     62	 *     X	1: Predictive error
     63	 *      X	1: "New" log (always 1 for data returned from RTAS)
     64	 *       X	1: Big Endian
     65	 *        X	1: Reserved
     66	 */
     67
     68	/* Byte 1 */
     69	u8 byte1;			/* reserved */
     70
     71	/* Byte 2 */
     72	u8 byte2;
     73	/* XXXXXXXX
     74	 * X		1: Set to 1 (indicating log is in PowerPC format)
     75	 *  XXX		3: Reserved
     76	 *     XXXX	4: Log format used for bytes 12-2047
     77	 */
     78
     79	/* Byte 3 */
     80	u8 byte3;			/* reserved */
     81	/* Byte 4-11 */
     82	u8 reserved[8];			/* reserved */
     83	/* Byte 12-15 */
     84	__be32  company_id;		/* Company ID of the company	*/
     85					/* that defines the format for	*/
     86					/* the vendor specific log type	*/
     87	/* Byte 16-end of log */
     88	u8 vendor_log[1];		/* Start of vendor specific log	*/
     89					/* Variable length.		*/
     90};
     91
     92/* Vendor specific Platform Event Log Format, Version 6, section header */
     93struct pseries_errorlog {
     94	__be16 id;			/* 0x00 2-byte ASCII section ID	*/
     95	__be16 length;			/* 0x02 Section length in bytes	*/
     96	u8 version;			/* 0x04 Section version		*/
     97	u8 subtype;			/* 0x05 Section subtype		*/
     98	__be16 creator_component;	/* 0x06 Creator component ID	*/
     99	u8 data[];			/* 0x08 Start of section data	*/
    100};
    101
    102/* RTAS pseries hotplug errorlog section */
    103struct pseries_hp_errorlog {
    104	u8	resource;
    105	u8	action;
    106	u8	id_type;
    107	u8	reserved;
    108	union {
    109		__be32	drc_index;
    110		__be32	drc_count;
    111		struct { __be32 count, index; } ic;
    112		char	drc_name[1];
    113	} _drc_u;
    114};
    115
    116#endif /* _ASM_POWERPC_RTAS_TYPES_H */