diff options
| author | Ralf Baechle <ralf@linux-mips.org> | 2014-05-23 16:29:44 +0200 |
|---|---|---|
| committer | Ralf Baechle <ralf@linux-mips.org> | 2014-05-24 00:07:01 +0200 |
| commit | b633648c5ad3cfbda0b3daea50d2135d44899259 (patch) | |
| tree | 6100185cae10f36a55e71c3b220fc79cfa14b7c0 /arch/mips/include/asm/cpu-info.h | |
| parent | 8b2e62cc34feaaf1cac9440a93fb18ac0b1e81bc (diff) | |
MIPS: MT: Remove SMTC support
Nobody is maintaining SMTC anymore and there also seems to be no userbase.
Which is a pity - the SMTC technology primarily developed by Kevin D.
Kissell <kevink@paralogos.com> is an ingenious demonstration for the MT
ASE's power and elegance.
Based on Markos Chandras <Markos.Chandras@imgtec.com> patch
https://patchwork.linux-mips.org/patch/6719/ which while very similar did
no longer apply cleanly when I tried to merge it plus some additional
post-SMTC cleanup - SMTC was a feature as tricky to remove as it was to
merge once upon a time.
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Diffstat (limited to 'arch/mips/include/asm/cpu-info.h')
| -rw-r--r-- | arch/mips/include/asm/cpu-info.h | 13 |
1 files changed, 4 insertions, 9 deletions
diff --git a/arch/mips/include/asm/cpu-info.h b/arch/mips/include/asm/cpu-info.h index dc2135be2a3a..7ba0e07a9091 100644 --- a/arch/mips/include/asm/cpu-info.h +++ b/arch/mips/include/asm/cpu-info.h @@ -65,18 +65,13 @@ struct cpuinfo_mips { #ifdef CONFIG_64BIT int vmbits; /* Virtual memory size in bits */ #endif -#if defined(CONFIG_MIPS_MT_SMP) || defined(CONFIG_MIPS_MT_SMTC) +#ifdef CONFIG_MIPS_MT_SMP /* - * In the MIPS MT "SMTC" model, each TC is considered - * to be a "CPU" for the purposes of scheduling, but - * exception resources, ASID spaces, etc, are common - * to all TCs within the same VPE. + * There is not necessarily a 1:1 mapping of VPE num to CPU number + * in particular on multi-core systems. */ int vpe_id; /* Virtual Processor number */ #endif -#ifdef CONFIG_MIPS_MT_SMTC - int tc_id; /* Thread Context number */ -#endif void *data; /* Additional data */ unsigned int watch_reg_count; /* Number that exist */ unsigned int watch_reg_use_cnt; /* Usable by ptrace */ @@ -117,7 +112,7 @@ struct proc_cpuinfo_notifier_args { unsigned long n; }; -#if defined(CONFIG_MIPS_MT_SMP) || defined(CONFIG_MIPS_MT_SMTC) +#ifdef CONFIG_MIPS_MT_SMP # define cpu_vpe_id(cpuinfo) ((cpuinfo)->vpe_id) #else # define cpu_vpe_id(cpuinfo) 0 |