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[PATCH] powerpc: merge code values for identifying platforms

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This patch merges platform codes.  systemcfg->platform is no longer used,
systemcfg use in general is deprecated as much as possible (and renamed
_systemcfg before it gets completely moved elsewhere in a future patch),
_machine is now used on ppc64 along as ppc32.  Platform codes aren't gone
yet but we are getting a step closer. A bunch of asm code in head[_64].S
is also turned into C code.

Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>
This commit is contained in:
Paul Mackerras
2005-11-10 13:37:51 +11:00
parent 3ddfbcf19b
commit 799d6046d3
44 changed files with 234 additions and 331 deletions
Download Patch File Download Diff File Expand all files Collapse all files

65
arch/powerpc/kernel/setup_64.c
View File

@@ -100,10 +100,9 @@ extern void udbg_init_maple_realmode(void);
extern unsigned long klimit;
extern void mm_init_ppc64(void);
extern void stab_initialize(unsigned long stab);
extern void htab_initialize(void);
extern void early_init_devtree(void *flat_dt);
extern void unflatten_device_tree(void);
extern void check_for_initrd(void);
int have_of = 1;
int boot_cpuid = 0;
@@ -256,11 +255,10 @@ void __init early_setup(unsigned long dt_ptr)
* Iterate all ppc_md structures until we find the proper
* one for the current machine type
*/
DBG("Probing machine type for platform %x...\n",
systemcfg->platform);
DBG("Probing machine type for platform %x...\n", _machine);
for (mach = machines; *mach; mach++) {
if ((*mach)->probe(systemcfg->platform))
if ((*mach)->probe(_machine))
break;
}
/* What can we do if we didn't find ? */
@@ -292,6 +290,28 @@ void __init early_setup(unsigned long dt_ptr)
DBG(" <- early_setup()\n");
}
#ifdef CONFIG_SMP
void early_setup_secondary(void)
{
struct paca_struct *lpaca = get_paca();
/* Mark enabled in PACA */
lpaca->proc_enabled = 0;
/* Initialize hash table for that CPU */
htab_initialize_secondary();
/* Initialize STAB/SLB. We use a virtual address as it works
* in real mode on pSeries and we want a virutal address on
* iSeries anyway
*/
if (cpu_has_feature(CPU_FTR_SLB))
slb_initialize();
else
stab_initialize(lpaca->stab_addr);
}
#endif /* CONFIG_SMP */
#if defined(CONFIG_SMP) || defined(CONFIG_KEXEC)
void smp_release_cpus(void)
@@ -317,7 +337,8 @@ void smp_release_cpus(void)
#endif /* CONFIG_SMP || CONFIG_KEXEC */
/*
* Initialize some remaining members of the ppc64_caches and systemcfg structures
* Initialize some remaining members of the ppc64_caches and systemcfg
* structures
* (at least until we get rid of them completely). This is mostly some
* cache informations about the CPU that will be used by cache flush
* routines and/or provided to userland
@@ -342,7 +363,7 @@ static void __init initialize_cache_info(void)
const char *dc, *ic;
/* Then read cache informations */
if (systemcfg->platform == PLATFORM_POWERMAC) {
if (_machine == PLATFORM_POWERMAC) {
dc = "d-cache-block-size";
ic = "i-cache-block-size";
} else {
@@ -362,8 +383,8 @@ static void __init initialize_cache_info(void)
DBG("Argh, can't find dcache properties ! "
"sizep: %p, lsizep: %p\n", sizep, lsizep);
systemcfg->dcache_size = ppc64_caches.dsize = size;
systemcfg->dcache_line_size =
_systemcfg->dcache_size = ppc64_caches.dsize = size;
_systemcfg->dcache_line_size =
ppc64_caches.dline_size = lsize;
ppc64_caches.log_dline_size = __ilog2(lsize);
ppc64_caches.dlines_per_page = PAGE_SIZE / lsize;
@@ -380,8 +401,8 @@ static void __init initialize_cache_info(void)
DBG("Argh, can't find icache properties ! "
"sizep: %p, lsizep: %p\n", sizep, lsizep);
systemcfg->icache_size = ppc64_caches.isize = size;
systemcfg->icache_line_size =
_systemcfg->icache_size = ppc64_caches.isize = size;
_systemcfg->icache_line_size =
ppc64_caches.iline_size = lsize;
ppc64_caches.log_iline_size = __ilog2(lsize);
ppc64_caches.ilines_per_page = PAGE_SIZE / lsize;
@@ -389,10 +410,12 @@ static void __init initialize_cache_info(void)
}
/* Add an eye catcher and the systemcfg layout version number */
strcpy(systemcfg->eye_catcher, "SYSTEMCFG:PPC64");
systemcfg->version.major = SYSTEMCFG_MAJOR;
systemcfg->version.minor = SYSTEMCFG_MINOR;
systemcfg->processor = mfspr(SPRN_PVR);
strcpy(_systemcfg->eye_catcher, "SYSTEMCFG:PPC64");
_systemcfg->version.major = SYSTEMCFG_MAJOR;
_systemcfg->version.minor = SYSTEMCFG_MINOR;
_systemcfg->processor = mfspr(SPRN_PVR);
_systemcfg->platform = _machine;
_systemcfg->physicalMemorySize = lmb_phys_mem_size();
DBG(" <- initialize_cache_info()\n");
}
@@ -481,10 +504,10 @@ void __init setup_system(void)
printk("-----------------------------------------------------\n");
printk("ppc64_pft_size = 0x%lx\n", ppc64_pft_size);
printk("ppc64_interrupt_controller = 0x%ld\n", ppc64_interrupt_controller);
printk("systemcfg = 0x%p\n", systemcfg);
printk("systemcfg->platform = 0x%x\n", systemcfg->platform);
printk("systemcfg->processorCount = 0x%lx\n", systemcfg->processorCount);
printk("systemcfg->physicalMemorySize = 0x%lx\n", systemcfg->physicalMemorySize);
printk("systemcfg = 0x%p\n", _systemcfg);
printk("systemcfg->platform = 0x%x\n", _systemcfg->platform);
printk("systemcfg->processorCount = 0x%lx\n", _systemcfg->processorCount);
printk("systemcfg->physicalMemorySize = 0x%lx\n", _systemcfg->physicalMemorySize);
printk("ppc64_caches.dcache_line_size = 0x%x\n",
ppc64_caches.dline_size);
printk("ppc64_caches.icache_line_size = 0x%x\n",
@@ -566,12 +589,12 @@ void __init setup_syscall_map(void)
for (i = 0; i < __NR_syscalls; i++) {
if (sys_call_table[i*2] != sys_ni_syscall) {
count64++;
systemcfg->syscall_map_64[i >> 5] |=
_systemcfg->syscall_map_64[i >> 5] |=
0x80000000UL >> (i & 0x1f);
}
if (sys_call_table[i*2+1] != sys_ni_syscall) {
count32++;
systemcfg->syscall_map_32[i >> 5] |=
_systemcfg->syscall_map_32[i >> 5] |=
0x80000000UL >> (i & 0x1f);
}
}