156 lines
3.8 KiB
C
156 lines
3.8 KiB
C
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/* SPDX-License-Identifier: GPL-2.0-or-later */
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#ifndef __CRB_H
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#define __CRB_H
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#include <linux/types.h>
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#include "nx.h"
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/* CCW 842 CI/FC masks
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* NX P8 workbook, section 4.3.1, figure 4-6
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* "CI/FC Boundary by NX CT type"
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*/
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#define CCW_CI_842 (0x00003ff8)
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#define CCW_FC_842 (0x00000007)
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/* Chapter 6.5.8 Coprocessor-Completion Block (CCB) */
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#define CCB_VALUE (0x3fffffffffffffff)
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#define CCB_ADDRESS (0xfffffffffffffff8)
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#define CCB_CM (0x0000000000000007)
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#define CCB_CM0 (0x0000000000000004)
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#define CCB_CM12 (0x0000000000000003)
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#define CCB_CM0_ALL_COMPLETIONS (0x0)
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#define CCB_CM0_LAST_IN_CHAIN (0x4)
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#define CCB_CM12_STORE (0x0)
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#define CCB_CM12_INTERRUPT (0x1)
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#define CCB_SIZE (0x10)
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#define CCB_ALIGN CCB_SIZE
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struct coprocessor_completion_block {
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__be64 value;
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__be64 address;
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} __aligned(CCB_ALIGN);
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/* Chapter 6.5.7 Coprocessor-Status Block (CSB) */
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#define CSB_V (0x80)
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#define CSB_F (0x04)
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#define CSB_CH (0x03)
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#define CSB_CE_INCOMPLETE (0x80)
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#define CSB_CE_TERMINATION (0x40)
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#define CSB_CE_TPBC (0x20)
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#define CSB_CC_SUCCESS (0)
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#define CSB_CC_INVALID_ALIGN (1)
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#define CSB_CC_OPERAND_OVERLAP (2)
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#define CSB_CC_DATA_LENGTH (3)
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#define CSB_CC_TRANSLATION (5)
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#define CSB_CC_PROTECTION (6)
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#define CSB_CC_RD_EXTERNAL (7)
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#define CSB_CC_INVALID_OPERAND (8)
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#define CSB_CC_PRIVILEGE (9)
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#define CSB_CC_INTERNAL (10)
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#define CSB_CC_WR_EXTERNAL (12)
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#define CSB_CC_NOSPC (13)
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#define CSB_CC_EXCESSIVE_DDE (14)
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#define CSB_CC_WR_TRANSLATION (15)
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#define CSB_CC_WR_PROTECTION (16)
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#define CSB_CC_UNKNOWN_CODE (17)
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#define CSB_CC_ABORT (18)
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#define CSB_CC_TRANSPORT (20)
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#define CSB_CC_SEGMENTED_DDL (31)
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#define CSB_CC_PROGRESS_POINT (32)
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#define CSB_CC_DDE_OVERFLOW (33)
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#define CSB_CC_SESSION (34)
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#define CSB_CC_PROVISION (36)
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#define CSB_CC_CHAIN (37)
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#define CSB_CC_SEQUENCE (38)
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#define CSB_CC_HW (39)
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#define CSB_SIZE (0x10)
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#define CSB_ALIGN CSB_SIZE
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struct coprocessor_status_block {
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__u8 flags;
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__u8 cs;
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__u8 cc;
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__u8 ce;
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__be32 count;
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__be64 address;
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} __aligned(CSB_ALIGN);
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/* Chapter 6.5.10 Data-Descriptor List (DDL)
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* each list contains one or more Data-Descriptor Entries (DDE)
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*/
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#define DDE_P (0x8000)
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#define DDE_SIZE (0x10)
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#define DDE_ALIGN DDE_SIZE
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struct data_descriptor_entry {
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__be16 flags;
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__u8 count;
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__u8 index;
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__be32 length;
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__be64 address;
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} __aligned(DDE_ALIGN);
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/* Chapter 6.5.2 Coprocessor-Request Block (CRB) */
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#define CRB_SIZE (0x80)
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#define CRB_ALIGN (0x100) /* Errata: requires 256 alignment */
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/* Coprocessor Status Block field
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* ADDRESS address of CSB
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* C CCB is valid
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* AT 0 = addrs are virtual, 1 = addrs are phys
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* M enable perf monitor
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*/
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#define CRB_CSB_ADDRESS (0xfffffffffffffff0)
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#define CRB_CSB_C (0x0000000000000008)
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#define CRB_CSB_AT (0x0000000000000002)
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#define CRB_CSB_M (0x0000000000000001)
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struct coprocessor_request_block {
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__be32 ccw;
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__be32 flags;
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__be64 csb_addr;
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struct data_descriptor_entry source;
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struct data_descriptor_entry target;
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struct coprocessor_completion_block ccb;
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__u8 reserved[48];
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struct coprocessor_status_block csb;
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} __aligned(CRB_ALIGN);
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#define crb_csb_addr(c) __be64_to_cpu(c->csb_addr)
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#define crb_nx_fault_addr(c) __be64_to_cpu(c->stamp.nx.fault_storage_addr)
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#define crb_nx_flags(c) c->stamp.nx.flags
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#define crb_nx_fault_status(c) c->stamp.nx.fault_status
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#define crb_nx_pswid(c) c->stamp.nx.pswid
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/* RFC02167 Initiate Coprocessor Instructions document
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* Chapter 8.2.1.1.1 RS
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* Chapter 8.2.3 Coprocessor Directive
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* Chapter 8.2.4 Execution
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*
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* The CCW must be converted to BE before passing to icswx()
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*/
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#define CCW_PS (0xff000000)
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#define CCW_CT (0x00ff0000)
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#define CCW_CD (0x0000ffff)
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#define CCW_CL (0x0000c000)
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#endif
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