arch/powerpc/include/asm/immap_cpm2.h
Source file repositories/reference/linux-study-clean/arch/powerpc/include/asm/immap_cpm2.h
File Facts
- System
- Linux kernel
- Corpus path
arch/powerpc/include/asm/immap_cpm2.h- Extension
.h- Size
- 10749 bytes
- Lines
- 649
- Domain
- Architecture Layer
- Bucket
- arch/powerpc
- 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.
- CPU and platform-specific kernel glue: boot entry, traps, syscall entry, interrupts, page tables, context switch, and low-level barriers.
- Defines or uses C structs; map object ownership, embedded links, reference counts, and lock ownership.
Dependency Surface
linux/types.h
Detected Declarations
- No top-level syscall, struct, function, initcall, or export declaration detected by the generator.
Annotated Snippet
#ifdef __KERNEL__
#ifndef __IMMAP_CPM2__
#define __IMMAP_CPM2__
#include <linux/types.h>
/* System configuration registers.
*/
typedef struct sys_82xx_conf {
u32 sc_siumcr;
u32 sc_sypcr;
u8 res1[6];
u16 sc_swsr;
u8 res2[20];
u32 sc_bcr;
u8 sc_ppc_acr;
u8 res3[3];
u32 sc_ppc_alrh;
u32 sc_ppc_alrl;
u8 sc_lcl_acr;
u8 res4[3];
u32 sc_lcl_alrh;
u32 sc_lcl_alrl;
u32 sc_tescr1;
u32 sc_tescr2;
u32 sc_ltescr1;
u32 sc_ltescr2;
u32 sc_pdtea;
u8 sc_pdtem;
u8 res5[3];
u32 sc_ldtea;
u8 sc_ldtem;
u8 res6[163];
} sysconf_82xx_cpm2_t;
typedef struct sys_85xx_conf {
u32 sc_cear;
u16 sc_ceer;
u16 sc_cemr;
u8 res1[70];
u32 sc_smaer;
u8 res2[4];
u32 sc_smevr;
u32 sc_smctr;
u32 sc_lmaer;
u8 res3[4];
u32 sc_lmevr;
u32 sc_lmctr;
u8 res4[144];
} sysconf_85xx_cpm2_t;
typedef union sys_conf {
sysconf_82xx_cpm2_t siu_82xx;
sysconf_85xx_cpm2_t siu_85xx;
} sysconf_cpm2_t;
/* Memory controller registers.
*/
typedef struct mem_ctlr {
u32 memc_br0;
u32 memc_or0;
u32 memc_br1;
u32 memc_or1;
u32 memc_br2;
u32 memc_or2;
u32 memc_br3;
u32 memc_or3;
u32 memc_br4;
u32 memc_or4;
u32 memc_br5;
u32 memc_or5;
u32 memc_br6;
u32 memc_or6;
u32 memc_br7;
u32 memc_or7;
u32 memc_br8;
u32 memc_or8;
u32 memc_br9;
u32 memc_or9;
u32 memc_br10;
u32 memc_or10;
u32 memc_br11;
u32 memc_or11;
u8 res1[8];
u32 memc_mar;
u8 res2[4];
u32 memc_mamr;
u32 memc_mbmr;
Annotation
- Immediate include surface: `linux/types.h`.
- Atlas domain: Architecture Layer / arch/powerpc.
- Implementation status: source implementation candidate.
Implementation Notes
- This generated page is the file-by-file coverage layer; curated subsystem chapters should link here when they synthesize a multi-file control flow.
- Core OS pages should be promoted from atlas-only to deep-reviewed when they explain data structures, invariants, locking, lifecycle, and C implementation snippets.
- Driver-family pages are intentionally pattern-oriented unless they are part of the selected PCIe/NVMe representative device path.