Messages in this thread | | | Date | Thu, 01 Aug 2013 11:46:15 +0200 | From | Jonas Bonn <> | Subject | Re: [ORLinux] [PATCH] openrisc: add cache way information to cpuinfo |
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On 04/27/2013 08:02 PM, Stefan Kristiansson wrote: > Motivation for this is to be able to print the way information > properly in print_cpuinfo(), instead of hardcoding it to one. > > Signed-off-by: Stefan Kristiansson <stefan.kristiansson@saunalahti.fi>
Applied. Thanks. /Jonas
> --- > arch/openrisc/include/asm/cpuinfo.h | 2 ++ > arch/openrisc/kernel/setup.c | 20 +++++++++++++------- > 2 files changed, 15 insertions(+), 7 deletions(-) > > diff --git a/arch/openrisc/include/asm/cpuinfo.h b/arch/openrisc/include/asm/cpuinfo.h > index 917318b..ec10679 100644 > --- a/arch/openrisc/include/asm/cpuinfo.h > +++ b/arch/openrisc/include/asm/cpuinfo.h > @@ -24,9 +24,11 @@ struct cpuinfo { > > u32 icache_size; > u32 icache_block_size; > + u32 icache_ways; > > u32 dcache_size; > u32 dcache_block_size; > + u32 dcache_ways; > }; > > extern struct cpuinfo cpuinfo; > diff --git a/arch/openrisc/kernel/setup.c b/arch/openrisc/kernel/setup.c > index f4d5bed..6b0e2c4 100644 > --- a/arch/openrisc/kernel/setup.c > +++ b/arch/openrisc/kernel/setup.c > @@ -129,13 +129,15 @@ static void print_cpuinfo(void) > if (upr & SPR_UPR_DCP) > printk(KERN_INFO > "-- dcache: %4d bytes total, %2d bytes/line, %d way(s)\n", > - cpuinfo.dcache_size, cpuinfo.dcache_block_size, 1); > + cpuinfo.dcache_size, cpuinfo.dcache_block_size, > + cpuinfo.dcache_ways); > else > printk(KERN_INFO "-- dcache disabled\n"); > if (upr & SPR_UPR_ICP) > printk(KERN_INFO > "-- icache: %4d bytes total, %2d bytes/line, %d way(s)\n", > - cpuinfo.icache_size, cpuinfo.icache_block_size, 1); > + cpuinfo.icache_size, cpuinfo.icache_block_size, > + cpuinfo.icache_ways); > else > printk(KERN_INFO "-- icache disabled\n"); > > @@ -167,25 +169,25 @@ void __init setup_cpuinfo(void) > { > struct device_node *cpu; > unsigned long iccfgr, dccfgr; > - unsigned long cache_set_size, cache_ways; > + unsigned long cache_set_size; > > cpu = of_find_compatible_node(NULL, NULL, "opencores,or1200-rtlsvn481"); > if (!cpu) > panic("No compatible CPU found in device tree...\n"); > > iccfgr = mfspr(SPR_ICCFGR); > - cache_ways = 1 << (iccfgr & SPR_ICCFGR_NCW); > + cpuinfo.icache_ways = 1 << (iccfgr & SPR_ICCFGR_NCW); > cache_set_size = 1 << ((iccfgr & SPR_ICCFGR_NCS) >> 3); > cpuinfo.icache_block_size = 16 << ((iccfgr & SPR_ICCFGR_CBS) >> 7); > cpuinfo.icache_size = > - cache_set_size * cache_ways * cpuinfo.icache_block_size; > + cache_set_size * cpuinfo.icache_ways * cpuinfo.icache_block_size; > > dccfgr = mfspr(SPR_DCCFGR); > - cache_ways = 1 << (dccfgr & SPR_DCCFGR_NCW); > + cpuinfo.dcache_ways = 1 << (dccfgr & SPR_DCCFGR_NCW); > cache_set_size = 1 << ((dccfgr & SPR_DCCFGR_NCS) >> 3); > cpuinfo.dcache_block_size = 16 << ((dccfgr & SPR_DCCFGR_CBS) >> 7); > cpuinfo.dcache_size = > - cache_set_size * cache_ways * cpuinfo.dcache_block_size; > + cache_set_size * cpuinfo.dcache_ways * cpuinfo.dcache_block_size; > > if (of_property_read_u32(cpu, "clock-frequency", > &cpuinfo.clock_frequency)) { > @@ -336,8 +338,10 @@ static int show_cpuinfo(struct seq_file *m, void *v) > "frequency\t: %ld\n" > "dcache size\t: %d bytes\n" > "dcache block size\t: %d bytes\n" > + "dcache ways\t: %d\n" > "icache size\t: %d bytes\n" > "icache block size\t: %d bytes\n" > + "icache ways\t: %d\n" > "immu\t\t: %d entries, %lu ways\n" > "dmmu\t\t: %d entries, %lu ways\n" > "bogomips\t: %lu.%02lu\n", > @@ -346,8 +350,10 @@ static int show_cpuinfo(struct seq_file *m, void *v) > loops_per_jiffy * HZ, > cpuinfo.dcache_size, > cpuinfo.dcache_block_size, > + cpuinfo.dcache_ways, > cpuinfo.icache_size, > cpuinfo.icache_block_size, > + cpuinfo.icache_ways, > 1 << ((mfspr(SPR_DMMUCFGR) & SPR_DMMUCFGR_NTS) >> 2), > 1 + (mfspr(SPR_DMMUCFGR) & SPR_DMMUCFGR_NTW), > 1 << ((mfspr(SPR_IMMUCFGR) & SPR_IMMUCFGR_NTS) >> 2), >
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