arch/alpha/include/asm/core_t2.h

Source file repositories/reference/linux-study-clean/arch/alpha/include/asm/core_t2.h

File Facts

System
Linux kernel
Corpus path
arch/alpha/include/asm/core_t2.h
Extension
.h
Size
19645 bytes
Lines
622
Domain
Architecture Layer
Bucket
arch/alpha
Inferred role
Architecture Layer: implementation source
Status
source implementation candidate

Why This File Exists

CPU and platform-specific kernel glue: boot entry, traps, syscall entry, interrupts, page tables, context switch, and low-level barriers.

Dependency Surface

Detected Declarations

Annotated Snippet

struct sable_cpu_csr {
  unsigned long bcc;     long fill_00[3]; /* Backup Cache Control */
  unsigned long bcce;    long fill_01[3]; /* Backup Cache Correctable Error */
  unsigned long bccea;   long fill_02[3]; /* B-Cache Corr Err Address Latch */
  unsigned long bcue;    long fill_03[3]; /* B-Cache Uncorrectable Error */
  unsigned long bcuea;   long fill_04[3]; /* B-Cache Uncorr Err Addr Latch */
  unsigned long dter;    long fill_05[3]; /* Duplicate Tag Error */
  unsigned long cbctl;   long fill_06[3]; /* CBus Control */
  unsigned long cbe;     long fill_07[3]; /* CBus Error */
  unsigned long cbeal;   long fill_08[3]; /* CBus Error Addr Latch low */
  unsigned long cbeah;   long fill_09[3]; /* CBus Error Addr Latch high */
  unsigned long pmbx;    long fill_10[3]; /* Processor Mailbox */
  unsigned long ipir;    long fill_11[3]; /* Inter-Processor Int Request */
  unsigned long sic;     long fill_12[3]; /* System Interrupt Clear */
  unsigned long adlk;    long fill_13[3]; /* Address Lock (LDxL/STxC) */
  unsigned long madrl;   long fill_14[3]; /* CBus Miss Address */
  unsigned long rev;     long fill_15[3]; /* CMIC Revision */
};

/*
 * Data structure for handling T2 machine checks:
 */
struct el_t2_frame_header {
	unsigned int	elcf_fid;	/* Frame ID (from above) */
	unsigned int	elcf_size;	/* Size of frame in bytes */
};

struct el_t2_procdata_mcheck {
	unsigned long	elfmc_paltemp[32];	/* PAL TEMP REGS. */
	/* EV4-specific fields */
	unsigned long	elfmc_exc_addr;	/* Addr of excepting insn. */
	unsigned long	elfmc_exc_sum;	/* Summary of arith traps. */
	unsigned long	elfmc_exc_mask;	/* Exception mask (from exc_sum). */
	unsigned long	elfmc_iccsr;	/* IBox hardware enables. */
	unsigned long	elfmc_pal_base;	/* Base address for PALcode. */
	unsigned long	elfmc_hier;	/* Hardware Interrupt Enable. */
	unsigned long	elfmc_hirr;	/* Hardware Interrupt Request. */
	unsigned long	elfmc_mm_csr;	/* D-stream fault info. */
	unsigned long	elfmc_dc_stat;	/* D-cache status (ECC/Parity Err). */
	unsigned long	elfmc_dc_addr;	/* EV3 Phys Addr for ECC/DPERR. */
	unsigned long	elfmc_abox_ctl;	/* ABox Control Register. */
	unsigned long	elfmc_biu_stat;	/* BIU Status. */
	unsigned long	elfmc_biu_addr;	/* BUI Address. */
	unsigned long	elfmc_biu_ctl;	/* BIU Control. */
	unsigned long	elfmc_fill_syndrome; /* For correcting ECC errors. */
	unsigned long	elfmc_fill_addr;/* Cache block which was being read. */
	unsigned long	elfmc_va;	/* Effective VA of fault or miss. */
	unsigned long	elfmc_bc_tag;	/* Backup Cache Tag Probe Results. */
};

/*
 * Sable processor specific Machine Check Data segment.
 */

struct el_t2_logout_header {
	unsigned int	elfl_size;	/* size in bytes of logout area. */
	unsigned int	elfl_sbz1:31;	/* Should be zero. */
	unsigned int	elfl_retry:1;	/* Retry flag. */
	unsigned int	elfl_procoffset; /* Processor-specific offset. */
	unsigned int	elfl_sysoffset;	 /* Offset of system-specific. */
	unsigned int	elfl_error_type;	/* PAL error type code. */
	unsigned int	elfl_frame_rev;		/* PAL Frame revision. */
};
struct el_t2_sysdata_mcheck {
	unsigned long    elcmc_bcc;	      /* CSR 0 */
	unsigned long    elcmc_bcce;	      /* CSR 1 */
	unsigned long    elcmc_bccea;      /* CSR 2 */
	unsigned long    elcmc_bcue;	      /* CSR 3 */
	unsigned long    elcmc_bcuea;      /* CSR 4 */
	unsigned long    elcmc_dter;	      /* CSR 5 */
	unsigned long    elcmc_cbctl;      /* CSR 6 */
	unsigned long    elcmc_cbe;	      /* CSR 7 */
	unsigned long    elcmc_cbeal;      /* CSR 8 */
	unsigned long    elcmc_cbeah;      /* CSR 9 */
	unsigned long    elcmc_pmbx;	      /* CSR 10 */
	unsigned long    elcmc_ipir;	      /* CSR 11 */
	unsigned long    elcmc_sic;	      /* CSR 12 */
	unsigned long    elcmc_adlk;	      /* CSR 13 */
	unsigned long    elcmc_madrl;      /* CSR 14 */
	unsigned long    elcmc_crrev4;     /* CSR 15 */
};

/*
 * Sable memory error frame - sable pfms section 3.42
 */
struct el_t2_data_memory {
	struct	el_t2_frame_header elcm_hdr;	/* ID$MEM-FERR = 0x08 */
	unsigned int  elcm_module;	/* Module id. */
	unsigned int  elcm_res04;	/* Reserved. */
	unsigned long elcm_merr;	/* CSR0: Error Reg 1. */

Annotation

Implementation Notes