arch/sparc/kernel/cpu.c

Source file repositories/reference/linux-study-clean/arch/sparc/kernel/cpu.c

File Facts

System
Linux kernel
Corpus path
arch/sparc/kernel/cpu.c
Extension
.c
Size
12429 bytes
Lines
557
Domain
Architecture Layer
Bucket
arch/sparc
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 cpu_info {
	int psr_vers;
	const char *name;
	const char *pmu_name;
};

struct fpu_info {
	int fp_vers;
	const char *name;
};

#define NOCPU 8
#define NOFPU 8

struct manufacturer_info {
	int psr_impl;
	struct cpu_info cpu_info[NOCPU];
	struct fpu_info fpu_info[NOFPU];
};

#define CPU(ver, _name) \
{ .psr_vers = ver, .name = _name }

#define CPU_PMU(ver, _name, _pmu_name)	\
{ .psr_vers = ver, .name = _name, .pmu_name = _pmu_name }

#define FPU(ver, _name) \
{ .fp_vers = ver, .name = _name }

static const struct manufacturer_info __initconst manufacturer_info[] = {
{
	0,
	/* Sun4/100, 4/200, SLC */
	.cpu_info = {
		CPU(0, "Fujitsu  MB86900/1A or LSI L64831 SparcKIT-40"),
		/* borned STP1012PGA */
		CPU(4,  "Fujitsu  MB86904"),
		CPU(5, "Fujitsu TurboSparc MB86907"),
		CPU(-1, NULL)
	},
	.fpu_info = {
		FPU(0, "Fujitsu MB86910 or Weitek WTL1164/5"),
		FPU(1, "Fujitsu MB86911 or Weitek WTL1164/5 or LSI L64831"),
		FPU(2, "LSI Logic L64802 or Texas Instruments ACT8847"),
		/* SparcStation SLC, SparcStation1 */
		FPU(3, "Weitek WTL3170/2"),
		/* SPARCstation-5 */
		FPU(4, "Lsi Logic/Meiko L64804 or compatible"),
		FPU(-1, NULL)
	}
},{
	1,
	.cpu_info = {
		/* SparcStation2, SparcServer 490 & 690 */
		CPU(0, "LSI Logic Corporation - L64811"),
		/* SparcStation2 */
		CPU(1, "Cypress/ROSS CY7C601"),
		/* Embedded controller */
		CPU(3, "Cypress/ROSS CY7C611"),
		/* Ross Technologies HyperSparc */
		CPU(0xf, "ROSS HyperSparc RT620"),
		CPU(0xe, "ROSS HyperSparc RT625 or RT626"),
		CPU(-1, NULL)
	},
	.fpu_info = {
		FPU(0, "ROSS HyperSparc combined IU/FPU"),
		FPU(1, "Lsi Logic L64814"),
		FPU(2, "Texas Instruments TMS390-C602A"),
		FPU(3, "Cypress CY7C602 FPU"),
		FPU(-1, NULL)
	}
},{
	2,
	.cpu_info = {
		/* ECL Implementation, CRAY S-MP Supercomputer... AIEEE! */
		/* Someone please write the code to support this beast! ;) */
		CPU(0, "Bipolar Integrated Technology - B5010"),
		CPU(-1, NULL)
	},
	.fpu_info = {
		FPU(-1, NULL)
	}
},{
	3,
	.cpu_info = {
		CPU(0, "LSI Logic Corporation - unknown-type"),
		CPU(-1, NULL)
	},
	.fpu_info = {
		FPU(-1, NULL)

Annotation

Implementation Notes