aboutsummaryrefslogtreecommitdiff
path: root/target/mips/cpu-defs.c.inc
AgeCommit message (Collapse)Author
2021-11-02target/mips: Remove obsolete FCR0_HAS2008 comment on P5600 CPUPhilippe Mathieu-Daudé
FCR0_HAS2008 flag has been enabled in commit ba5c79f2622 ("target-mips: indicate presence of IEEE 754-2008 FPU in R6/R5+MSA CPUs"), so remove the obsolete FIXME comment. Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Reviewed-by: Jiaxun Yang <jiaxun.yang@flygoat.com> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Message-Id: <20211028212103.2126176-1-f4bug@amsat.org>
2021-11-02target/mips: Fix Loongson-3A4000 MSAIR config registerPhilippe Mathieu-Daudé
When using the Loongson-3A4000 CPU, the MSAIR is returned with a zero value (because unimplemented). Checking on real hardware, this value appears incorrect: $ cat /proc/cpuinfo system type : generic-loongson-machine machine : loongson,generic cpu model : Loongson-3 V0.4 FPU V0.1 model name : Loongson-3A R4 (Loongson-3A4000) @ 1800MHz isa : mips1 mips2 mips3 mips4 mips5 mips32r1 mips32r2 mips64r1 mips64r2 ASEs implemented : vz msa loongson-mmi loongson-cam loongson-ext loongson-ext2 ... Checking the CFCMSA opcode result with gdb we get 0x60140: Breakpoint 1, 0x00000001200037c4 in main () 1: x/i $pc => 0x1200037c4 <main+52>: cfcmsa v0,msa_ir (gdb) si 0x00000001200037c8 in main () (gdb) i r v0 v0: 0x60140 MSAIR bits 17 and 18 are "reserved" per the spec revision 1.12, so mask them out, and set MSAIR=0x0140 for the Loongson-3A4000 CPU model added in commit af868995e1b. Cc: Huacai Chen <chenhuacai@kernel.org> Reviewed-by: Jiaxun Yang <jiaxun.yang@flygoat.com> Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Message-Id: <20211026180920.1085516-1-f4bug@amsat.org>
2021-08-25target/mips: Allow Loongson 3A1000 to use up to 48-bit VAddrPhilippe Mathieu-Daudé
Per the manual '龙芯 GS264 处理器核用户手册' v1.0, chapter 1.1.5 SEGBITS: the 3A1000 (based on GS464 core) implements 48 virtual address bits in each 64-bit segment, not 40. Fixes: af868995e1b ("target/mips: Add Loongson-3 CPU definition") Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Reviewed-by: Huacai Chen <chenhuacai@loongson.cn> Message-Id: <20210813110149.1432692-3-f4bug@amsat.org>
2021-08-25target/mips: Document Loongson-3A CPU definitionsPhilippe Mathieu-Daudé
Document the cores on which each Loongson-3A CPU is based (see commit af868995e1b, "target/mips: Add Loongson-3 CPU definition"). Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Reviewed-by: Huacai Chen <chenhuacai@loongson.cn> Message-Id: <20210813110149.1432692-2-f4bug@amsat.org>
2021-01-14target/mips: Remove vendor specific CPU definitionsPhilippe Mathieu-Daudé
Vendor specific CPU definitions are not very useful. Use the ISA definitions instead, which are more helpful when looking at the various CPU definitions. Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Message-Id: <20210112210152.2072996-4-f4bug@amsat.org>
2021-01-14target/mips: Remove CPU_NANOMIPS32 definitionPhilippe Mathieu-Daudé
nanoMIPS not a CPU, but an ISA. The nanoMIPS ISA is already defined as ISA_NANOMIPS32. Remove this incorrect definition and update the single CPU implementing it, the I7200. Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Message-Id: <20210112210152.2072996-3-f4bug@amsat.org>
2021-01-14target/mips: Move msa_reset() to msa_helper.cPhilippe Mathieu-Daudé
translate_init.c.inc mostly contains CPU definitions. msa_reset() doesn't belong here, move it with the MSA helpers. One comment style is updated to avoid checkpatch.pl warning. Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Message-Id: <20201215225757.764263-15-f4bug@amsat.org> Tested-by: Jiaxun Yang <jiaxun.yang@flygoat.com>
2021-01-14target/mips: Remove now unused ASE_MSA definitionPhilippe Mathieu-Daudé
We don't use ASE_MSA anymore (replaced by ase_msa_available() checking MSAP bit from CP0_Config3). Remove it. Reviewed-by: Jiaxun Yang <jiaxun.yang@flygoat.com> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Tested-by: Jiaxun Yang <jiaxun.yang@flygoat.com> Message-Id: <20201208003702.4088927-6-f4bug@amsat.org>
2021-01-14target/mips: Simplify msa_reset()Philippe Mathieu-Daudé
Call msa_reset() unconditionally, but only reset the MSA registers if MSA is implemented. Reviewed-by: Jiaxun Yang <jiaxun.yang@flygoat.com> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Tested-by: Jiaxun Yang <jiaxun.yang@flygoat.com> Message-Id: <20201208003702.4088927-3-f4bug@amsat.org>
2021-01-14target/mips: Rename translate_init.c as cpu-defs.cPhilippe Mathieu-Daudé
This file is not TCG specific, contains CPU definitions and is consumed by cpu.c. Rename it as such. Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Message-Id: <20201214183739.500368-10-f4bug@amsat.org>
generated by cgit v1.2.3 (git 2.26.2) at 2025-03-01 03:19:05 +0000