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ARC: Support for single cycle Close Coupled Mem (CCM)

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* Includes mapping of CCMs in address space
* Annotations to move arbitrary code/data into CCM
* Moving some of the critical code/data into CCM
* Runtime detection/reporting

Signed-off-by: Vineet Gupta <vgupta@synopsys.com>
This commit is contained in:
Vineet Gupta
2013-01-18 15:12:25 +05:30
parent 9c57564e26
commit 8b5850f8ac
6 changed files with 137 additions and 6 deletions
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5
arch/arc/mm/tlbex.S
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@@ -53,8 +53,7 @@
; For details refer to comments before TLBMISS_FREEUP_REGS below
;--------------------------------------------------------------------------
.section .data
.global ex_saved_reg1
ARCFP_DATA ex_saved_reg1
.align 1 << L1_CACHE_SHIFT ; IMP: Must be Cache Line aligned
.type ex_saved_reg1, @object
#ifdef CONFIG_SMP
@@ -255,7 +254,7 @@ ex_saved_reg1:
#endif
.endm
.section .text, "ax",@progbits ;Fast Path Code, candidate for ICCM
ARCFP_CODE ;Fast Path Code, candidate for ICCM
;-----------------------------------------------------------------------------
; I-TLB Miss Exception Handler