arch/mips/sgi-ip22/Platform

Source file repositories/reference/linux-study-clean/arch/mips/sgi-ip22/Platform

File Facts

System
Linux kernel
Corpus path
arch/mips/sgi-ip22/Platform
Extension
[no extension]
Size
1069 bytes
Lines
28
Domain
Architecture Layer
Bucket
arch/mips
Inferred role
Architecture Layer: arch/mips
Status
atlas-only

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

#
# SGI IP22 (Indy/Indigo2)
#
# Set the load address to >= 0xffffffff88069000 if you want to leave space for
# symmon, 0xffffffff80002000 for production kernels.  Note that the value must
# be aligned to a multiple of the kernel stack size or the handling of the
# current variable will break so for 64-bit kernels we have to raise the start
# address by 8kb.
#
cflags-$(CONFIG_SGI_IP22)	+= -I$(srctree)/arch/mips/include/asm/mach-ip22
ifdef CONFIG_32BIT
load-$(CONFIG_SGI_IP22)		+= 0xffffffff88002000
endif
ifdef CONFIG_64BIT
load-$(CONFIG_SGI_IP22)		+= 0xffffffff88004000
endif

#
# SGI IP28 (Indigo2 R10k)
#
# Set the load address to >= 0xa800000020080000 if you want to leave space for
# symmon, 0xa800000020004000 for production kernels ?  Note that the value must
# be 16kb aligned or the handling of the current variable will break.
# Simplified: what IP22 does at 128MB+ in ksegN, IP28 does at 512MB+ in xkphys
#
cflags-$(CONFIG_SGI_IP28)	+= -mr10k-cache-barrier=store -I$(srctree)/arch/mips/include/asm/mach-ip28
load-$(CONFIG_SGI_IP28)		+= 0xa800000020004000

Annotation

Implementation Notes