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target-mips: implement R6 multi-threading

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MIPS Release 6 provides multi-threading features which replace
pre-R6 MT Module. CP0.Config3.MT is always 0 in R6, instead there is new
CP0.Config5.VP (Virtual Processor) bit which indicates presence of
multi-threading support which includes CP0.GlobalNumber register and
DVP/EVP instructions.

Signed-off-by: Yongbok Kim <yongbok.kim@imgtec.com>
Signed-off-by: Leon Alrae <leon.alrae@imgtec.com>
This commit is contained in:
Yongbok Kim 2016-02-03 12:31:07 +00:00 • committed by Leon Alrae
parent bee62662a3
commit 01bc435b44
7 changed files with 151 additions and 1 deletions
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3
target-mips/translate_init.c
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@ -665,7 +665,8 @@ static const mips_def_t mips_defs[] =
(1 << CP0C3_RXI) | (1 << CP0C3_LPA),
.CP0_Config4 = MIPS_CONFIG4 | (1U << CP0C4_M) | (3 << CP0C4_IE) |
(0xfc << CP0C4_KScrExist),
.CP0_Config5 = MIPS_CONFIG5 | (1 << CP0C5_XNP) | (1 << CP0C5_LLB),
.CP0_Config5 = MIPS_CONFIG5 | (1 << CP0C5_XNP) | (1 << CP0C5_VP) |
(1 << CP0C5_LLB),
.CP0_Config5_rw_bitmask = (1 << CP0C5_MSAEn) | (1 << CP0C5_SBRI) |
(1 << CP0C5_FRE) | (1 << CP0C5_UFE),
.CP0_LLAddr_rw_bitmask = 0,