mirror of
https://github.com/edk2-porting/linux-next.git
synced 2024-12-15 16:53:54 +08:00
[S390] eliminate cpuinfo_S390 structure
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
This commit is contained in:
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2938af534d
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@ -80,7 +80,6 @@
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#define __LC_USER_ASCE 0xC50
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#define __LC_PANIC_STACK 0xC54
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#define __LC_CPUID 0xC60
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#define __LC_CPUADDR 0xC68
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#define __LC_IPLDEV 0xC7C
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#define __LC_CURRENT 0xC90
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#define __LC_INT_CLOCK 0xC98
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@ -102,7 +101,6 @@
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#define __LC_USER_ASCE 0xD60
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#define __LC_PANIC_STACK 0xD68
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#define __LC_CPUID 0xD80
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#define __LC_CPUADDR 0xD88
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#define __LC_IPLDEV 0xDB8
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#define __LC_CURRENT 0xDD8
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#define __LC_INT_CLOCK 0xDE8
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@ -273,8 +271,10 @@ struct _lowcore
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__u32 user_exec_asce; /* 0xc58 */
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__u8 pad10[0xc60-0xc5c]; /* 0xc5c */
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/* entry.S sensitive area start */
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struct cpuinfo_S390 cpu_data; /* 0xc60 */
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__u32 ipl_device; /* 0xc7c */
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cpuid_t cpu_id; /* 0xc60 */
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__u32 cpu_nr; /* 0xc68 */
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__u32 ipl_device; /* 0xc6c */
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__u8 pad_0xc70[0xc80-0xc70]; /* 0xc70 */
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/* entry.S sensitive area end */
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/* SMP info area: defined by DJB */
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@ -366,9 +366,10 @@ struct _lowcore
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__u64 user_exec_asce; /* 0xd70 */
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__u8 pad10[0xd80-0xd78]; /* 0xd78 */
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/* entry.S sensitive area start */
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struct cpuinfo_S390 cpu_data; /* 0xd80 */
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__u32 ipl_device; /* 0xdb8 */
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__u32 pad11; /* 0xdbc */
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cpuid_t cpu_id; /* 0xd80 */
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__u32 cpu_nr; /* 0xd88 */
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__u32 ipl_device; /* 0xd8c */
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__u8 pad_0xd90[0xdc0-0xd90]; /* 0xd90 */
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/* entry.S sensitive area end */
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/* SMP info area: defined by DJB */
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@ -42,22 +42,8 @@ static inline void get_cpu_id(cpuid_t *ptr)
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asm volatile("stidp 0(%1)" : "=m" (*ptr) : "a" (ptr));
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}
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struct cpuinfo_S390
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{
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cpuid_t cpu_id;
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__u16 cpu_addr;
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__u16 cpu_nr;
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unsigned long loops_per_jiffy;
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unsigned long *pgd_quick;
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#ifdef __s390x__
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unsigned long *pmd_quick;
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#endif /* __s390x__ */
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unsigned long *pte_quick;
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unsigned long pgtable_cache_sz;
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};
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extern void s390_adjust_jiffies(void);
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extern void print_cpu_info(struct cpuinfo_S390 *);
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extern void print_cpu_info(void);
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extern int get_cpu_capability(unsigned int *);
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/*
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@ -50,12 +50,7 @@ extern void machine_power_off_smp(void);
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#define PROC_CHANGE_PENALTY 20 /* Schedule penalty */
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#define raw_smp_processor_id() (S390_lowcore.cpu_data.cpu_nr)
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static inline __u16 hard_smp_processor_id(void)
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{
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return stap();
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}
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#define raw_smp_processor_id() (S390_lowcore.cpu_nr)
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/*
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* returns 1 if cpu is in stopped/check stopped state or not operational
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@ -18,10 +18,11 @@
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#include <asm/lowcore.h>
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#include <asm/param.h>
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void __cpuinit print_cpu_info(struct cpuinfo_S390 *cpuinfo)
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void __cpuinit print_cpu_info(void)
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{
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pr_info("Processor %d started, address %d, identification %06X\n",
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cpuinfo->cpu_nr, cpuinfo->cpu_addr, cpuinfo->cpu_id.ident);
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S390_lowcore.cpu_nr, S390_lowcore.cpu_addr,
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S390_lowcore.cpu_id.ident);
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}
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/*
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@ -34,44 +35,42 @@ static int show_cpuinfo(struct seq_file *m, void *v)
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"esan3", "zarch", "stfle", "msa", "ldisp", "eimm", "dfp",
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"edat"
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};
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struct cpuinfo_S390 *cpuinfo;
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unsigned long n = (unsigned long) v - 1;
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int i;
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struct _lowcore *lc;
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unsigned long n = (unsigned long) v - 1;
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int i;
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s390_adjust_jiffies();
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preempt_disable();
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if (!n) {
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seq_printf(m, "vendor_id : IBM/S390\n"
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"# processors : %i\n"
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"bogomips per cpu: %lu.%02lu\n",
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num_online_cpus(), loops_per_jiffy/(500000/HZ),
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(loops_per_jiffy/(5000/HZ))%100);
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seq_puts(m, "features\t: ");
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for (i = 0; i < 8; i++)
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if (hwcap_str[i] && (elf_hwcap & (1UL << i)))
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seq_printf(m, "%s ", hwcap_str[i]);
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seq_puts(m, "\n");
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}
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s390_adjust_jiffies();
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preempt_disable();
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if (!n) {
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seq_printf(m, "vendor_id : IBM/S390\n"
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"# processors : %i\n"
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"bogomips per cpu: %lu.%02lu\n",
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num_online_cpus(), loops_per_jiffy/(500000/HZ),
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(loops_per_jiffy/(5000/HZ))%100);
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seq_puts(m, "features\t: ");
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for (i = 0; i < 8; i++)
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if (hwcap_str[i] && (elf_hwcap & (1UL << i)))
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seq_printf(m, "%s ", hwcap_str[i]);
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seq_puts(m, "\n");
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}
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if (cpu_online(n)) {
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if (cpu_online(n)) {
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#ifdef CONFIG_SMP
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if (smp_processor_id() == n)
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cpuinfo = &S390_lowcore.cpu_data;
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else
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cpuinfo = &lowcore_ptr[n]->cpu_data;
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lc = (smp_processor_id() == n) ?
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&S390_lowcore : lowcore_ptr[n];
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#else
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cpuinfo = &S390_lowcore.cpu_data;
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lc = &S390_lowcore;
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#endif
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seq_printf(m, "processor %li: "
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"version = %02X, "
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"identification = %06X, "
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"machine = %04X\n",
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n, cpuinfo->cpu_id.version,
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cpuinfo->cpu_id.ident,
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cpuinfo->cpu_id.machine);
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}
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preempt_enable();
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return 0;
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seq_printf(m, "processor %li: "
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"version = %02X, "
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"identification = %06X, "
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"machine = %04X\n",
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n, lc->cpu_id.version,
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lc->cpu_id.ident,
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lc->cpu_id.machine);
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}
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preempt_enable();
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return 0;
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}
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static void *c_start(struct seq_file *m, loff_t *pos)
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@ -121,13 +121,10 @@ static struct resource data_resource = {
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*/
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void __cpuinit cpu_init(void)
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{
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int addr = hard_smp_processor_id();
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/*
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* Store processor id in lowcore (used e.g. in timer_interrupt)
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*/
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get_cpu_id(&S390_lowcore.cpu_data.cpu_id);
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S390_lowcore.cpu_data.cpu_addr = addr;
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get_cpu_id(&S390_lowcore.cpu_id);
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/*
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* Force FPU initialization:
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@ -686,7 +683,6 @@ setup_memory(void)
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static void __init setup_hwcaps(void)
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{
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static const int stfl_bits[6] = { 0, 2, 7, 17, 19, 21 };
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struct cpuinfo_S390 *cpuinfo = &S390_lowcore.cpu_data;
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unsigned long long facility_list_extended;
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unsigned int facility_list;
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int i;
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@ -732,7 +728,7 @@ static void __init setup_hwcaps(void)
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if (MACHINE_HAS_HPAGE)
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elf_hwcap |= 1UL << 7;
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switch (cpuinfo->cpu_id.machine) {
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switch (S390_lowcore.cpu_id.machine) {
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case 0x9672:
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#if !defined(CONFIG_64BIT)
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default: /* Use "g5" as default for 31 bit kernels. */
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@ -825,7 +821,7 @@ setup_arch(char **cmdline_p)
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setup_lowcore();
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cpu_init();
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__cpu_logical_map[0] = S390_lowcore.cpu_data.cpu_addr;
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__cpu_logical_map[0] = stap();
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s390_init_cpu_topology();
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/*
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@ -372,7 +372,7 @@ static void __init smp_detect_cpus(void)
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c_cpus = 1;
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s_cpus = 0;
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boot_cpu_addr = S390_lowcore.cpu_data.cpu_addr;
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boot_cpu_addr = __cpu_logical_map[0];
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info = kmalloc(sizeof(*info), GFP_KERNEL);
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if (!info)
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panic("smp_detect_cpus failed to allocate memory\n");
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@ -446,7 +446,7 @@ int __cpuinit start_secondary(void *cpuvoid)
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/* Switch on interrupts */
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local_irq_enable();
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/* Print info about this processor */
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print_cpu_info(&S390_lowcore.cpu_data);
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print_cpu_info();
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/* cpu_idle will call schedule for us */
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cpu_idle();
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return 0;
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@ -564,7 +564,7 @@ int __cpuinit __cpu_up(unsigned int cpu)
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: : "a" (&cpu_lowcore->access_regs_save_area) : "memory");
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cpu_lowcore->percpu_offset = __per_cpu_offset[cpu];
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cpu_lowcore->current_task = (unsigned long) idle;
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cpu_lowcore->cpu_data.cpu_nr = cpu;
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cpu_lowcore->cpu_nr = cpu;
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cpu_lowcore->kernel_asce = S390_lowcore.kernel_asce;
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cpu_lowcore->ipl_device = S390_lowcore.ipl_device;
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eieio();
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@ -656,7 +656,7 @@ void __init smp_prepare_cpus(unsigned int max_cpus)
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/* request the 0x1201 emergency signal external interrupt */
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if (register_external_interrupt(0x1201, do_ext_call_interrupt) != 0)
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panic("Couldn't request external interrupt 0x1201");
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print_cpu_info(&S390_lowcore.cpu_data);
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print_cpu_info();
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/* Reallocate current lowcore, but keep its contents. */
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lc_order = sizeof(long) == 8 ? 1 : 0;
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@ -655,7 +655,7 @@ css_generate_pgid(struct channel_subsystem *css, u32 tod_high)
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css->global_pgid.pgid_high.ext_cssid.cssid = css->cssid;
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} else {
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#ifdef CONFIG_SMP
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css->global_pgid.pgid_high.cpu_addr = hard_smp_processor_id();
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css->global_pgid.pgid_high.cpu_addr = stap();
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#else
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css->global_pgid.pgid_high.cpu_addr = 0;
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#endif
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