tools/testing/selftests/powerpc/nx-gzip/include/crb.h

Source file repositories/reference/linux-study-clean/tools/testing/selftests/powerpc/nx-gzip/include/crb.h

File Facts

System
Linux kernel
Corpus path
tools/testing/selftests/powerpc/nx-gzip/include/crb.h
Extension
.h
Size
3857 bytes
Lines
156
Domain
Support Tooling And Documentation
Bucket
tools
Inferred role
Support Tooling And Documentation: implementation source
Status
source implementation candidate

Why This File Exists

Repository support layer: documentation, build tooling, samples, user-space helper tools, generated initramfs support, licenses, and validation utilities.

Dependency Surface

Detected Declarations

Annotated Snippet

struct coprocessor_completion_block {
	__be64 value;
	__be64 address;
} __aligned(CCB_ALIGN);


/* Chapter 6.5.7 Coprocessor-Status Block (CSB) */

#define CSB_V			(0x80)
#define CSB_F			(0x04)
#define CSB_CH			(0x03)
#define CSB_CE_INCOMPLETE	(0x80)
#define CSB_CE_TERMINATION	(0x40)
#define CSB_CE_TPBC		(0x20)

#define CSB_CC_SUCCESS		(0)
#define CSB_CC_INVALID_ALIGN	(1)
#define CSB_CC_OPERAND_OVERLAP	(2)
#define CSB_CC_DATA_LENGTH	(3)
#define CSB_CC_TRANSLATION	(5)
#define CSB_CC_PROTECTION	(6)
#define CSB_CC_RD_EXTERNAL	(7)
#define CSB_CC_INVALID_OPERAND	(8)
#define CSB_CC_PRIVILEGE	(9)
#define CSB_CC_INTERNAL		(10)
#define CSB_CC_WR_EXTERNAL	(12)
#define CSB_CC_NOSPC		(13)
#define CSB_CC_EXCESSIVE_DDE	(14)
#define CSB_CC_WR_TRANSLATION	(15)
#define CSB_CC_WR_PROTECTION	(16)
#define CSB_CC_UNKNOWN_CODE	(17)
#define CSB_CC_ABORT		(18)
#define CSB_CC_TRANSPORT	(20)
#define CSB_CC_SEGMENTED_DDL	(31)
#define CSB_CC_PROGRESS_POINT	(32)
#define CSB_CC_DDE_OVERFLOW	(33)
#define CSB_CC_SESSION		(34)
#define CSB_CC_PROVISION	(36)
#define CSB_CC_CHAIN		(37)
#define CSB_CC_SEQUENCE		(38)
#define CSB_CC_HW		(39)

#define CSB_SIZE		(0x10)
#define CSB_ALIGN		CSB_SIZE

struct coprocessor_status_block {
	__u8 flags;
	__u8 cs;
	__u8 cc;
	__u8 ce;
	__be32 count;
	__be64 address;
} __aligned(CSB_ALIGN);


/* Chapter 6.5.10 Data-Descriptor List (DDL)
 * each list contains one or more Data-Descriptor Entries (DDE)
 */

#define DDE_P			(0x8000)

#define DDE_SIZE		(0x10)
#define DDE_ALIGN		DDE_SIZE

struct data_descriptor_entry {
	__be16 flags;
	__u8 count;
	__u8 index;
	__be32 length;
	__be64 address;
} __aligned(DDE_ALIGN);


/* Chapter 6.5.2 Coprocessor-Request Block (CRB) */

#define CRB_SIZE		(0x80)
#define CRB_ALIGN		(0x100) /* Errata: requires 256 alignment */


/* Coprocessor Status Block field
 *   ADDRESS	address of CSB
 *   C		CCB is valid
 *   AT		0 = addrs are virtual, 1 = addrs are phys
 *   M		enable perf monitor
 */
#define CRB_CSB_ADDRESS		(0xfffffffffffffff0)
#define CRB_CSB_C		(0x0000000000000008)
#define CRB_CSB_AT		(0x0000000000000002)
#define CRB_CSB_M		(0x0000000000000001)

Annotation

Implementation Notes