From e5c6c8e457d16c7cbc12f849ad18d4d508950de2 Mon Sep 17 00:00:00 2001 From: Michael Neuling Date: Tue, 14 Mar 2006 00:11:50 -0500 Subject: Input: pcspkr - separate device and driver registration The current pcspkr code combines the device and driver registration. This patch splits these, putting the device registration in the arch specific code. PowerPC and MIPS only have the pcspkr present sometimes. Signed-off-by: Michael Neuling Signed-off-by: Ralf Baechle Signed-off-by: Andrew Morton Signed-off-by: Dmitry Torokhov --- arch/powerpc/kernel/setup-common.c | 24 ++++++++++++++++++++++++ 1 file changed, 24 insertions(+) (limited to 'arch/powerpc/kernel/setup-common.c') diff --git a/arch/powerpc/kernel/setup-common.c b/arch/powerpc/kernel/setup-common.c index be12041c0fc..fc89d009d18 100644 --- a/arch/powerpc/kernel/setup-common.c +++ b/arch/powerpc/kernel/setup-common.c @@ -18,6 +18,7 @@ #include #include #include +#include #include #include #include @@ -469,3 +470,26 @@ static int __init early_xmon(char *p) } early_param("xmon", early_xmon); #endif + +static __init int add_pcspkr(void) +{ + struct device_node *np; + struct platform_device *pd; + int ret; + + np = of_find_compatible_node(NULL, NULL, "pnpPNP,100"); + of_node_put(np); + if (!np) + return -ENODEV; + + pd = platform_device_alloc("pcspkr", -1); + if (!pd) + return -ENOMEM; + + ret = platform_device_add(pd); + if (ret) + platform_device_put(pd); + + return ret; +} +device_initcall(add_pcspkr); -- cgit v1.2.3-70-g09d2 From 4df20460a3ff0d60280738b094945c56cb5567a5 Mon Sep 17 00:00:00 2001 From: Anton Blanchard Date: Sat, 25 Mar 2006 17:25:17 +1100 Subject: [PATCH] powerpc: Allow non zero boot cpuids We currently have a hack to flip the boot cpu and its secondary thread to logical cpuid 0 and 1. This means the logical - physical mapping will differ depending on which cpu is boot cpu. This is most apparent on kexec, where we might kexec on any cpu and therefore change the mapping from boot to boot. The patch below does a first pass early on to work out the logical cpuid of the boot thread. We then fix up some paca structures to match. Ive also removed the boot_cpuid_phys variable for ppc64, to be consistent we use get_hard_smp_processor_id(boot_cpuid) everywhere. Signed-off-by: Anton Blanchard Signed-off-by: Paul Mackerras --- arch/powerpc/kernel/head_64.S | 26 +++++------ arch/powerpc/kernel/paca.c | 21 ++------- arch/powerpc/kernel/prom.c | 83 +++++++++++++++++++++++------------ arch/powerpc/kernel/setup-common.c | 16 +------ arch/powerpc/kernel/setup_64.c | 12 +++-- arch/powerpc/platforms/pseries/xics.c | 2 +- include/asm-powerpc/paca.h | 2 + include/asm-powerpc/smp.h | 2 +- 8 files changed, 86 insertions(+), 78 deletions(-) (limited to 'arch/powerpc/kernel/setup-common.c') diff --git a/arch/powerpc/kernel/head_64.S b/arch/powerpc/kernel/head_64.S index 7e7f7d24330..a5ae04a57c7 100644 --- a/arch/powerpc/kernel/head_64.S +++ b/arch/powerpc/kernel/head_64.S @@ -1851,21 +1851,6 @@ _STATIC(start_here_multiplatform) bl .__save_cpu_setup sync - /* Setup a valid physical PACA pointer in SPRG3 for early_setup - * note that boot_cpuid can always be 0 nowadays since there is - * nowhere it can be initialized differently before we reach this - * code - */ - LOAD_REG_IMMEDIATE(r27, boot_cpuid) - add r27,r27,r26 - lwz r27,0(r27) - - LOAD_REG_IMMEDIATE(r24, paca) /* Get base vaddr of paca array */ - mulli r13,r27,PACA_SIZE /* Calculate vaddr of right paca */ - add r13,r13,r24 /* for this processor. */ - add r13,r13,r26 /* convert to physical addr */ - mtspr SPRN_SPRG3,r13 - /* Do very early kernel initializations, including initial hash table, * stab and slb setup before we turn on relocation. */ @@ -1934,6 +1919,17 @@ _STATIC(start_here_common) /* Not reached */ BUG_OPCODE +/* Put the paca pointer into r13 and SPRG3 */ +_GLOBAL(setup_boot_paca) + LOAD_REG_IMMEDIATE(r3, boot_cpuid) + lwz r3,0(r3) + LOAD_REG_IMMEDIATE(r4, paca) /* Get base vaddr of paca array */ + mulli r3,r3,PACA_SIZE /* Calculate vaddr of right paca */ + add r13,r3,r4 /* for this processor. */ + mtspr SPRN_SPRG3,r13 + + blr + /* * We put a few things here that have to be page-aligned. * This stuff goes at the beginning of the bss, which is page-aligned. diff --git a/arch/powerpc/kernel/paca.c b/arch/powerpc/kernel/paca.c index 5d1b708086b..f505a8827e3 100644 --- a/arch/powerpc/kernel/paca.c +++ b/arch/powerpc/kernel/paca.c @@ -56,14 +56,11 @@ struct lppaca lppaca[] = { * processors. The processor VPD array needs one entry per physical * processor (not thread). */ -#define PACA_INIT_COMMON(number, start, asrr, asrv) \ +#define PACA_INIT_COMMON(number) \ .lppaca_ptr = &lppaca[number], \ .lock_token = 0x8000, \ .paca_index = (number), /* Paca Index */ \ .kernel_toc = (unsigned long)(&__toc_start) + 0x8000UL, \ - .stab_real = (asrr), /* Real pointer to segment table */ \ - .stab_addr = (asrv), /* Virt pointer to segment table */ \ - .cpu_start = (start), /* Processor start */ \ .hw_cpu_id = 0xffff, #ifdef CONFIG_PPC_ISERIES @@ -72,30 +69,20 @@ struct lppaca lppaca[] = { #define PACA_INIT(number) \ { \ - PACA_INIT_COMMON(number, 0, 0, 0) \ - PACA_INIT_ISERIES(number) \ -} - -#define BOOTCPU_PACA_INIT(number) \ -{ \ - PACA_INIT_COMMON(number, 1, 0, (u64)&initial_stab) \ + PACA_INIT_COMMON(number) \ PACA_INIT_ISERIES(number) \ } #else #define PACA_INIT(number) \ { \ - PACA_INIT_COMMON(number, 0, 0, 0) \ + PACA_INIT_COMMON(number) \ } -#define BOOTCPU_PACA_INIT(number) \ -{ \ - PACA_INIT_COMMON(number, 1, STAB0_PHYS_ADDR, (u64)&initial_stab) \ -} #endif struct paca_struct paca[] = { - BOOTCPU_PACA_INIT(0), + PACA_INIT(0), #if NR_CPUS > 1 PACA_INIT( 1), PACA_INIT( 2), PACA_INIT( 3), #if NR_CPUS > 4 diff --git a/arch/powerpc/kernel/prom.c b/arch/powerpc/kernel/prom.c index d63cd562d9d..5a24415a2e3 100644 --- a/arch/powerpc/kernel/prom.c +++ b/arch/powerpc/kernel/prom.c @@ -854,35 +854,70 @@ void __init unflatten_device_tree(void) DBG(" <- unflatten_device_tree()\n"); } - static int __init early_init_dt_scan_cpus(unsigned long node, - const char *uname, int depth, void *data) + const char *uname, int depth, + void *data) { - u32 *prop; - unsigned long size; - char *type = of_get_flat_dt_prop(node, "device_type", &size); + static int logical_cpuid = 0; + char *type = of_get_flat_dt_prop(node, "device_type", NULL); + u32 *prop, *intserv; + int i, nthreads; + unsigned long len; + int found = 0; /* We are scanning "cpu" nodes only */ if (type == NULL || strcmp(type, "cpu") != 0) return 0; - boot_cpuid = 0; - boot_cpuid_phys = 0; - if (initial_boot_params && initial_boot_params->version >= 2) { - /* version 2 of the kexec param format adds the phys cpuid - * of booted proc. - */ - boot_cpuid_phys = initial_boot_params->boot_cpuid_phys; + /* Get physical cpuid */ + intserv = of_get_flat_dt_prop(node, "ibm,ppc-interrupt-server#s", &len); + if (intserv) { + nthreads = len / sizeof(int); } else { - /* Check if it's the boot-cpu, set it's hw index now */ - if (of_get_flat_dt_prop(node, + intserv = of_get_flat_dt_prop(node, "reg", NULL); + nthreads = 1; + } + + /* + * Now see if any of these threads match our boot cpu. + * NOTE: This must match the parsing done in smp_setup_cpu_maps. + */ + for (i = 0; i < nthreads; i++) { + /* + * version 2 of the kexec param format adds the phys cpuid of + * booted proc. + */ + if (initial_boot_params && initial_boot_params->version >= 2) { + if (intserv[i] == + initial_boot_params->boot_cpuid_phys) { + found = 1; + break; + } + } else { + /* + * Check if it's the boot-cpu, set it's hw index now, + * unfortunately this format did not support booting + * off secondary threads. + */ + if (of_get_flat_dt_prop(node, "linux,boot-cpu", NULL) != NULL) { - prop = of_get_flat_dt_prop(node, "reg", NULL); - if (prop != NULL) - boot_cpuid_phys = *prop; + found = 1; + break; + } } + +#ifdef CONFIG_SMP + /* logical cpu id is always 0 on UP kernels */ + logical_cpuid++; +#endif + } + + if (found) { + DBG("boot cpu: logical %d physical %d\n", logical_cpuid, + intserv[i]); + boot_cpuid = logical_cpuid; + set_hard_smp_processor_id(boot_cpuid, intserv[i]); } - set_hard_smp_processor_id(0, boot_cpuid_phys); #ifdef CONFIG_ALTIVEC /* Check if we have a VMX and eventually update CPU features */ @@ -901,16 +936,10 @@ static int __init early_init_dt_scan_cpus(unsigned long node, #endif /* CONFIG_ALTIVEC */ #ifdef CONFIG_PPC_PSERIES - /* - * Check for an SMT capable CPU and set the CPU feature. We do - * this by looking at the size of the ibm,ppc-interrupt-server#s - * property - */ - prop = (u32 *)of_get_flat_dt_prop(node, "ibm,ppc-interrupt-server#s", - &size); - cur_cpu_spec->cpu_features &= ~CPU_FTR_SMT; - if (prop && ((size / sizeof(u32)) > 1)) + if (nthreads > 1) cur_cpu_spec->cpu_features |= CPU_FTR_SMT; + else + cur_cpu_spec->cpu_features &= ~CPU_FTR_SMT; #endif return 0; diff --git a/arch/powerpc/kernel/setup-common.c b/arch/powerpc/kernel/setup-common.c index c1d62bf11f2..b17630ad4ac 100644 --- a/arch/powerpc/kernel/setup-common.c +++ b/arch/powerpc/kernel/setup-common.c @@ -352,12 +352,13 @@ void __init check_for_initrd(void) * must be called before using this. * * While we're here, we may as well set the "physical" cpu ids in the paca. + * + * NOTE: This must match the parsing done in early_init_dt_scan_cpus. */ void __init smp_setup_cpu_maps(void) { struct device_node *dn = NULL; int cpu = 0; - int swap_cpuid = 0; while ((dn = of_find_node_by_type(dn, "cpu")) && cpu < NR_CPUS) { int *intserv; @@ -376,24 +377,11 @@ void __init smp_setup_cpu_maps(void) for (j = 0; j < nthreads && cpu < NR_CPUS; j++) { cpu_set(cpu, cpu_present_map); set_hard_smp_processor_id(cpu, intserv[j]); - - if (intserv[j] == boot_cpuid_phys) - swap_cpuid = cpu; cpu_set(cpu, cpu_possible_map); cpu++; } } - /* Swap CPU id 0 with boot_cpuid_phys, so we can always assume that - * boot cpu is logical 0. - */ - if (boot_cpuid_phys != get_hard_smp_processor_id(0)) { - u32 tmp; - tmp = get_hard_smp_processor_id(0); - set_hard_smp_processor_id(0, boot_cpuid_phys); - set_hard_smp_processor_id(swap_cpuid, tmp); - } - #ifdef CONFIG_PPC64 /* * On pSeries LPAR, we need to know how many cpus diff --git a/arch/powerpc/kernel/setup_64.c b/arch/powerpc/kernel/setup_64.c index 2f3fdad3559..6c9b093c23a 100644 --- a/arch/powerpc/kernel/setup_64.c +++ b/arch/powerpc/kernel/setup_64.c @@ -73,7 +73,6 @@ int have_of = 1; int boot_cpuid = 0; -int boot_cpuid_phys = 0; dev_t boot_dev; u64 ppc64_pft_size; @@ -208,7 +207,6 @@ static struct machdep_calls __initdata *machines[] = { void __init early_setup(unsigned long dt_ptr) { - struct paca_struct *lpaca = get_paca(); static struct machdep_calls **mach; /* Enable early debugging if any specified (see udbg.h) */ @@ -223,6 +221,14 @@ void __init early_setup(unsigned long dt_ptr) */ early_init_devtree(__va(dt_ptr)); + /* Now we know the logical id of our boot cpu, setup the paca. */ + setup_boot_paca(); + + /* Fix up paca fields required for the boot cpu */ + get_paca()->cpu_start = 1; + get_paca()->stab_real = __pa((u64)&initial_stab); + get_paca()->stab_addr = (u64)&initial_stab; + /* * Iterate all ppc_md structures until we find the proper * one for the current machine type @@ -260,7 +266,7 @@ void __init early_setup(unsigned long dt_ptr) if (cpu_has_feature(CPU_FTR_SLB)) slb_initialize(); else - stab_initialize(lpaca->stab_real); + stab_initialize(get_paca()->stab_real); } DBG(" <- early_setup()\n"); diff --git a/arch/powerpc/platforms/pseries/xics.c b/arch/powerpc/platforms/pseries/xics.c index eb86cdb9b80..c60d3ff25a2 100644 --- a/arch/powerpc/platforms/pseries/xics.c +++ b/arch/powerpc/platforms/pseries/xics.c @@ -500,7 +500,7 @@ nextnode: np; np = of_find_node_by_type(np, "cpu")) { ireg = (uint *)get_property(np, "reg", &ilen); - if (ireg && ireg[0] == boot_cpuid_phys) { + if (ireg && ireg[0] == get_hard_smp_processor_id(boot_cpuid)) { ireg = (uint *)get_property(np, "ibm,ppc-interrupt-gserver#s", &ilen); i = ilen / sizeof(int); diff --git a/include/asm-powerpc/paca.h b/include/asm-powerpc/paca.h index 4465b95ebef..706325f99a8 100644 --- a/include/asm-powerpc/paca.h +++ b/include/asm-powerpc/paca.h @@ -105,5 +105,7 @@ struct paca_struct { extern struct paca_struct paca[]; +void setup_boot_paca(void); + #endif /* __KERNEL__ */ #endif /* _ASM_POWERPC_PACA_H */ diff --git a/include/asm-powerpc/smp.h b/include/asm-powerpc/smp.h index 98581e5a827..4a716f707cf 100644 --- a/include/asm-powerpc/smp.h +++ b/include/asm-powerpc/smp.h @@ -29,7 +29,6 @@ #endif extern int boot_cpuid; -extern int boot_cpuid_phys; extern void cpu_die(void); @@ -99,6 +98,7 @@ extern void smp_release_cpus(void); #else /* 32-bit */ #ifndef CONFIG_SMP +extern int boot_cpuid_phys; #define get_hard_smp_processor_id(cpu) boot_cpuid_phys #define set_hard_smp_processor_id(cpu, phys) #endif -- cgit v1.2.3-70-g09d2 From e8222502ee6157e2713da9e0792c21f4ad458d50 Mon Sep 17 00:00:00 2001 From: Benjamin Herrenschmidt Date: Tue, 28 Mar 2006 23:15:54 +1100 Subject: [PATCH] powerpc: Kill _machine and hard-coded platform numbers This removes statically assigned platform numbers and reworks the powerpc platform probe code to use a better mechanism. With this, board support files can simply declare a new machine type with a macro, and implement a probe() function that uses the flattened device-tree to detect if they apply for a given machine. We now have a machine_is() macro that replaces the comparisons of _machine with the various PLATFORM_* constants. This commit also changes various drivers to use the new macro instead of looking at _machine. Signed-off-by: Benjamin Herrenschmidt Signed-off-by: Paul Mackerras --- Documentation/powerpc/booting-without-of.txt | 5 + arch/powerpc/kernel/asm-offsets.c | 2 - arch/powerpc/kernel/nvram_64.c | 4 +- arch/powerpc/kernel/pci_32.c | 4 +- arch/powerpc/kernel/proc_ppc64.c | 3 +- arch/powerpc/kernel/prom.c | 56 ++-- arch/powerpc/kernel/prom_init.c | 51 ++-- arch/powerpc/kernel/rtas-proc.c | 2 +- arch/powerpc/kernel/rtas.c | 3 +- arch/powerpc/kernel/setup-common.c | 52 +++- arch/powerpc/kernel/setup_32.c | 58 +--- arch/powerpc/kernel/setup_64.c | 56 +--- arch/powerpc/kernel/traps.c | 35 +-- arch/powerpc/kernel/vdso.c | 9 +- arch/powerpc/kernel/vmlinux.lds.S | 381 +++++++++++++-------------- arch/powerpc/mm/hash_utils_64.c | 7 +- arch/powerpc/platforms/cell/setup.c | 11 +- arch/powerpc/platforms/chrp/setup.c | 13 +- arch/powerpc/platforms/iseries/setup.c | 9 +- arch/powerpc/platforms/maple/setup.c | 8 +- arch/powerpc/platforms/powermac/bootx_init.c | 4 +- arch/powerpc/platforms/powermac/feature.c | 2 +- arch/powerpc/platforms/powermac/low_i2c.c | 3 + arch/powerpc/platforms/powermac/nvram.c | 2 +- arch/powerpc/platforms/powermac/pci.c | 5 +- arch/powerpc/platforms/powermac/pfunc_base.c | 2 + arch/powerpc/platforms/powermac/setup.c | 72 ++--- arch/powerpc/platforms/powermac/time.c | 4 +- arch/powerpc/platforms/pseries/eeh.c | 2 +- arch/powerpc/platforms/pseries/pci.c | 2 +- arch/powerpc/platforms/pseries/pci_dlpar.c | 1 + arch/powerpc/platforms/pseries/reconfig.c | 5 +- arch/powerpc/platforms/pseries/rtasd.c | 3 +- arch/powerpc/platforms/pseries/setup.c | 39 ++- arch/ppc/platforms/prep_setup.c | 12 +- drivers/char/generic_nvram.c | 5 +- drivers/ide/pci/via82cxxx.c | 2 +- drivers/ide/ppc/pmac.c | 2 +- drivers/ieee1394/ohci1394.c | 4 +- drivers/macintosh/adb.c | 3 +- drivers/macintosh/adbhid.c | 4 +- drivers/macintosh/mediabay.c | 4 +- drivers/media/video/planb.c | 2 +- drivers/net/tulip/de4x5.c | 2 +- drivers/scsi/mesh.c | 2 +- drivers/usb/core/hcd-pci.c | 4 +- drivers/video/aty/aty128fb.c | 7 +- drivers/video/aty/atyfb_base.c | 7 +- drivers/video/aty/radeon_pm.c | 4 +- drivers/video/cirrusfb.c | 4 +- drivers/video/matrox/matroxfb_base.c | 3 +- drivers/video/nvidia/nvidia.c | 5 +- drivers/video/radeonfb.c | 2 +- drivers/video/riva/fbdev.c | 9 +- fs/partitions/mac.c | 3 +- include/asm-powerpc/machdep.h | 26 +- include/asm-powerpc/pmac_feature.h | 2 +- include/asm-powerpc/processor.h | 37 +-- include/asm-powerpc/prom.h | 14 +- include/asm-powerpc/vdso_datapage.h | 3 + include/asm-ppc/machdep.h | 12 + sound/oss/dmasound/dmasound_awacs.c | 2 +- sound/ppc/pmac.c | 2 +- 63 files changed, 560 insertions(+), 543 deletions(-) (limited to 'arch/powerpc/kernel/setup-common.c') diff --git a/Documentation/powerpc/booting-without-of.txt b/Documentation/powerpc/booting-without-of.txt index ee551c6ea23..217e51768b8 100644 --- a/Documentation/powerpc/booting-without-of.txt +++ b/Documentation/powerpc/booting-without-of.txt @@ -719,6 +719,11 @@ address which can extend beyond that limit. - model : this is your board name/model - #address-cells : address representation for "root" devices - #size-cells: the size representation for "root" devices + - device_type : This property shouldn't be necessary. However, if + you decide to create a device_type for your root node, make sure it + is _not_ "chrp" unless your platform is a pSeries or PAPR compliant + one for 64-bit, or a CHRP-type machine for 32-bit as this will + matched by the kernel this way. Additionally, some recommended properties are: diff --git a/arch/powerpc/kernel/asm-offsets.c b/arch/powerpc/kernel/asm-offsets.c index 882889b1592..54b48f33005 100644 --- a/arch/powerpc/kernel/asm-offsets.c +++ b/arch/powerpc/kernel/asm-offsets.c @@ -105,8 +105,6 @@ int main(void) DEFINE(ICACHEL1LINESIZE, offsetof(struct ppc64_caches, iline_size)); DEFINE(ICACHEL1LOGLINESIZE, offsetof(struct ppc64_caches, log_iline_size)); DEFINE(ICACHEL1LINESPERPAGE, offsetof(struct ppc64_caches, ilines_per_page)); - DEFINE(PLATFORM_LPAR, PLATFORM_LPAR); - /* paca */ DEFINE(PACA_SIZE, sizeof(struct paca_struct)); DEFINE(PACAPACAINDEX, offsetof(struct paca_struct, paca_index)); diff --git a/arch/powerpc/kernel/nvram_64.c b/arch/powerpc/kernel/nvram_64.c index 6c3989f6247..ada50aa5b60 100644 --- a/arch/powerpc/kernel/nvram_64.c +++ b/arch/powerpc/kernel/nvram_64.c @@ -160,7 +160,7 @@ static int dev_nvram_ioctl(struct inode *inode, struct file *file, case IOC_NVRAM_GET_OFFSET: { int part, offset; - if (_machine != PLATFORM_POWERMAC) + if (!machine_is(powermac)) return -EINVAL; if (copy_from_user(&part, (void __user*)arg, sizeof(part)) != 0) return -EFAULT; @@ -444,7 +444,7 @@ static int nvram_setup_partition(void) * in our nvram, as Apple defined partitions use pretty much * all of the space */ - if (_machine == PLATFORM_POWERMAC) + if (machine_is(powermac)) return -ENOSPC; /* see if we have an OS partition that meets our needs. diff --git a/arch/powerpc/kernel/pci_32.c b/arch/powerpc/kernel/pci_32.c index 704c846b2b0..b129d2e4b75 100644 --- a/arch/powerpc/kernel/pci_32.c +++ b/arch/powerpc/kernel/pci_32.c @@ -787,7 +787,7 @@ pci_busdev_to_OF_node(struct pci_bus *bus, int devfn) * fix has to be done by making the remapping per-host and always * filling the pci_to_OF map. --BenH */ - if (_machine == _MACH_Pmac && busnr >= 0xf0) + if (machine_is(powermac) && busnr >= 0xf0) busnr -= 0xf0; else #endif @@ -1728,7 +1728,7 @@ long sys_pciconfig_iobase(long which, unsigned long bus, unsigned long devfn) * (bus 0 is HT root), we return the AGP one instead. */ #ifdef CONFIG_PPC_PMAC - if (_machine == _MACH_Pmac && machine_is_compatible("MacRISC4")) + if (machine_is(powermac) && machine_is_compatible("MacRISC4")) if (bus == 0) bus = 0xf0; #endif /* CONFIG_PPC_PMAC */ diff --git a/arch/powerpc/kernel/proc_ppc64.c b/arch/powerpc/kernel/proc_ppc64.c index 7ba42a405f4..3c2cf661f6d 100644 --- a/arch/powerpc/kernel/proc_ppc64.c +++ b/arch/powerpc/kernel/proc_ppc64.c @@ -23,6 +23,7 @@ #include #include +#include #include #include #include @@ -51,7 +52,7 @@ static int __init proc_ppc64_create(void) if (!root) return 1; - if (!(platform_is_pseries() || _machine == PLATFORM_CELL)) + if (!machine_is(pseries) && !machine_is(cell)) return 0; if (!proc_mkdir("rtas", root)) diff --git a/arch/powerpc/kernel/prom.c b/arch/powerpc/kernel/prom.c index a2bc433f361..4336390bcf3 100644 --- a/arch/powerpc/kernel/prom.c +++ b/arch/powerpc/kernel/prom.c @@ -383,14 +383,14 @@ static int __devinit finish_node_interrupts(struct device_node *np, /* Apple uses bits in there in a different way, let's * only keep the real sense bit on macs */ - if (_machine == PLATFORM_POWERMAC) + if (machine_is(powermac)) sense &= 0x1; np->intrs[intrcount].sense = map_mpic_senses[sense]; } #ifdef CONFIG_PPC64 /* We offset irq numbers for the u3 MPIC by 128 in PowerMac */ - if (_machine == PLATFORM_POWERMAC && ic && ic->parent) { + if (machine_is(powermac) && ic && ic->parent) { char *name = get_property(ic->parent, "name", NULL); if (name && !strcmp(name, "u3")) np->intrs[intrcount].line += 128; @@ -570,6 +570,18 @@ int __init of_scan_flat_dt(int (*it)(unsigned long node, return rc; } +unsigned long __init of_get_flat_dt_root(void) +{ + unsigned long p = ((unsigned long)initial_boot_params) + + initial_boot_params->off_dt_struct; + + while(*((u32 *)p) == OF_DT_NOP) + p += 4; + BUG_ON (*((u32 *)p) != OF_DT_BEGIN_NODE); + p += 4; + return _ALIGN(p + strlen((char *)p) + 1, 4); +} + /** * This function can be used within scan_flattened_dt callback to get * access to properties @@ -612,6 +624,25 @@ void* __init of_get_flat_dt_prop(unsigned long node, const char *name, } while(1); } +int __init of_flat_dt_is_compatible(unsigned long node, const char *compat) +{ + const char* cp; + unsigned long cplen, l; + + cp = of_get_flat_dt_prop(node, "compatible", &cplen); + if (cp == NULL) + return 0; + while (cplen > 0) { + if (strncasecmp(cp, compat, strlen(compat)) == 0) + return 1; + l = strlen(cp) + 1; + cp += l; + cplen -= l; + } + + return 0; +} + static void *__init unflatten_dt_alloc(unsigned long *mem, unsigned long size, unsigned long align) { @@ -686,7 +717,7 @@ static unsigned long __init unflatten_dt_node(unsigned long mem, #ifdef DEBUG if ((strlen(p) + l + 1) != allocl) { DBG("%s: p: %d, l: %d, a: %d\n", - pathp, strlen(p), l, allocl); + pathp, (int)strlen(p), l, allocl); } #endif p += strlen(p); @@ -951,7 +982,6 @@ static int __init early_init_dt_scan_cpus(unsigned long node, static int __init early_init_dt_scan_chosen(unsigned long node, const char *uname, int depth, void *data) { - u32 *prop; unsigned long *lprop; unsigned long l; char *p; @@ -962,14 +992,6 @@ static int __init early_init_dt_scan_chosen(unsigned long node, (strcmp(uname, "chosen") != 0 && strcmp(uname, "chosen@0") != 0)) return 0; - /* get platform type */ - prop = (u32 *)of_get_flat_dt_prop(node, "linux,platform", NULL); - if (prop == NULL) - return 0; -#ifdef CONFIG_PPC_MULTIPLATFORM - _machine = *prop; -#endif - #ifdef CONFIG_PPC64 /* check if iommu is forced on or off */ if (of_get_flat_dt_prop(node, "linux,iommu-off", NULL) != NULL) @@ -996,15 +1018,15 @@ static int __init early_init_dt_scan_chosen(unsigned long node, * set of RTAS infos now if available */ { - u64 *basep, *entryp; + u64 *basep, *entryp, *sizep; basep = of_get_flat_dt_prop(node, "linux,rtas-base", NULL); entryp = of_get_flat_dt_prop(node, "linux,rtas-entry", NULL); - prop = of_get_flat_dt_prop(node, "linux,rtas-size", NULL); - if (basep && entryp && prop) { + sizep = of_get_flat_dt_prop(node, "linux,rtas-size", NULL); + if (basep && entryp && sizep) { rtas.base = *basep; rtas.entry = *entryp; - rtas.size = *prop; + rtas.size = *sizep; } } #endif /* CONFIG_PPC_RTAS */ @@ -1775,7 +1797,7 @@ static int of_finish_dynamic_node(struct device_node *node) /* We don't support that function on PowerMac, at least * not yet */ - if (_machine == PLATFORM_POWERMAC) + if (machine_is(powermac)) return -ENODEV; /* fix up new node's linux_phandle field */ diff --git a/arch/powerpc/kernel/prom_init.c b/arch/powerpc/kernel/prom_init.c index 0d088784450..d66c5e77fcf 100644 --- a/arch/powerpc/kernel/prom_init.c +++ b/arch/powerpc/kernel/prom_init.c @@ -180,6 +180,16 @@ static unsigned long __initdata prom_tce_alloc_start; static unsigned long __initdata prom_tce_alloc_end; #endif +/* Platforms codes are now obsolete in the kernel. Now only used within this + * file and ultimately gone too. Feel free to change them if you need, they + * are not shared with anything outside of this file anymore + */ +#define PLATFORM_PSERIES 0x0100 +#define PLATFORM_PSERIES_LPAR 0x0101 +#define PLATFORM_LPAR 0x0001 +#define PLATFORM_POWERMAC 0x0400 +#define PLATFORM_GENERIC 0x0500 + static int __initdata of_platform; static char __initdata prom_cmd_line[COMMAND_LINE_SIZE]; @@ -1492,7 +1502,10 @@ static int __init prom_find_machine_type(void) int len, i = 0; #ifdef CONFIG_PPC64 phandle rtas; + int x; #endif + + /* Look for a PowerMac */ len = prom_getprop(_prom->root, "compatible", compat, sizeof(compat)-1); if (len > 0) { @@ -1505,28 +1518,36 @@ static int __init prom_find_machine_type(void) if (strstr(p, RELOC("Power Macintosh")) || strstr(p, RELOC("MacRISC"))) return PLATFORM_POWERMAC; -#ifdef CONFIG_PPC64 - if (strstr(p, RELOC("Momentum,Maple"))) - return PLATFORM_MAPLE; - if (strstr(p, RELOC("IBM,CPB"))) - return PLATFORM_CELL; -#endif i += sl + 1; } } #ifdef CONFIG_PPC64 + /* If not a mac, try to figure out if it's an IBM pSeries or any other + * PAPR compliant platform. We assume it is if : + * - /device_type is "chrp" (please, do NOT use that for future + * non-IBM designs ! + * - it has /rtas + */ + len = prom_getprop(_prom->root, "model", + compat, sizeof(compat)-1); + if (len <= 0) + return PLATFORM_GENERIC; + compat[len] = 0; + if (strcmp(compat, "chrp")) + return PLATFORM_GENERIC; + /* Default to pSeries. We need to know if we are running LPAR */ rtas = call_prom("finddevice", 1, 1, ADDR("/rtas")); - if (PHANDLE_VALID(rtas)) { - int x = prom_getproplen(rtas, "ibm,hypertas-functions"); - if (x != PROM_ERROR) { - prom_printf("Hypertas detected, assuming LPAR !\n"); - return PLATFORM_PSERIES_LPAR; - } + if (!PHANDLE_VALID(rtas)) + return PLATFORM_GENERIC; + x = prom_getproplen(rtas, "ibm,hypertas-functions"); + if (x != PROM_ERROR) { + prom_printf("Hypertas detected, assuming LPAR !\n"); + return PLATFORM_PSERIES_LPAR; } return PLATFORM_PSERIES; #else - return PLATFORM_CHRP; + return PLATFORM_GENERIC; #endif } @@ -2034,7 +2055,6 @@ unsigned long __init prom_init(unsigned long r3, unsigned long r4, { struct prom_t *_prom; unsigned long hdr; - u32 getprop_rval; unsigned long offset = reloc_offset(); #ifdef CONFIG_PPC32 @@ -2070,9 +2090,6 @@ unsigned long __init prom_init(unsigned long r3, unsigned long r4, * between pSeries SMP and pSeries LPAR */ RELOC(of_platform) = prom_find_machine_type(); - getprop_rval = RELOC(of_platform); - prom_setprop(_prom->chosen, "/chosen", "linux,platform", - &getprop_rval, sizeof(getprop_rval)); /* Bail if this is a kdump kernel. */ if (PHYSICAL_START > 0) diff --git a/arch/powerpc/kernel/rtas-proc.c b/arch/powerpc/kernel/rtas-proc.c index 1f03fb28cc0..456286cf1d1 100644 --- a/arch/powerpc/kernel/rtas-proc.c +++ b/arch/powerpc/kernel/rtas-proc.c @@ -257,7 +257,7 @@ static int __init proc_rtas_init(void) { struct proc_dir_entry *entry; - if (_machine != PLATFORM_PSERIES && _machine != PLATFORM_PSERIES_LPAR) + if (!machine_is(pseries)) return 1; rtas_node = of_find_node_by_name(NULL, "rtas"); diff --git a/arch/powerpc/kernel/rtas.c b/arch/powerpc/kernel/rtas.c index 142d818a31a..4b78ee0e586 100644 --- a/arch/powerpc/kernel/rtas.c +++ b/arch/powerpc/kernel/rtas.c @@ -25,6 +25,7 @@ #include #include #include +#include #include #include #include @@ -768,7 +769,7 @@ void __init rtas_initialize(void) * the stop-self token if any */ #ifdef CONFIG_PPC64 - if (_machine == PLATFORM_PSERIES_LPAR) { + if (machine_is(pseries) && firmware_has_feature(FW_FEATURE_LPAR)) { rtas_region = min(lmb.rmo_size, RTAS_INSTANTIATE_MAX); ibm_suspend_me_token = rtas_token("ibm,suspend-me"); } diff --git a/arch/powerpc/kernel/setup-common.c b/arch/powerpc/kernel/setup-common.c index b17630ad4ac..3473cb9cb0a 100644 --- a/arch/powerpc/kernel/setup-common.c +++ b/arch/powerpc/kernel/setup-common.c @@ -9,6 +9,9 @@ * as published by the Free Software Foundation; either version * 2 of the License, or (at your option) any later version. */ + +#undef DEBUG + #include #include #include @@ -41,6 +44,7 @@ #include #include #include +#include #include #include #include @@ -56,8 +60,6 @@ #include "setup.h" -#undef DEBUG - #ifdef DEBUG #include #define DBG(fmt...) udbg_printf(fmt) @@ -65,10 +67,12 @@ #define DBG(fmt...) #endif -#ifdef CONFIG_PPC_MULTIPLATFORM -int _machine = 0; -EXPORT_SYMBOL(_machine); -#endif +/* The main machine-dep calls structure + */ +struct machdep_calls ppc_md; +EXPORT_SYMBOL(ppc_md); +struct machdep_calls *machine_id; +EXPORT_SYMBOL(machine_id); unsigned long klimit = (unsigned long) _end; @@ -168,7 +172,8 @@ static int show_cpuinfo(struct seq_file *m, void *v) bogosum/(500000/HZ), bogosum/(5000/HZ) % 100); #endif /* CONFIG_SMP && CONFIG_PPC32 */ seq_printf(m, "timebase\t: %lu\n", ppc_tb_freq); - + if (ppc_md.name) + seq_printf(m, "platform\t: %s\n", ppc_md.name); if (ppc_md.show_cpuinfo != NULL) ppc_md.show_cpuinfo(m); @@ -387,7 +392,7 @@ void __init smp_setup_cpu_maps(void) * On pSeries LPAR, we need to know how many cpus * could possibly be added to this partition. */ - if (_machine == PLATFORM_PSERIES_LPAR && + if (machine_is(pseries) && firmware_has_feature(FW_FEATURE_LPAR) && (dn = of_find_node_by_path("/rtas"))) { int num_addr_cell, num_size_cell, maxcpus; unsigned int *ireg; @@ -456,3 +461,34 @@ static int __init early_xmon(char *p) } early_param("xmon", early_xmon); #endif + +void probe_machine(void) +{ + extern struct machdep_calls __machine_desc_start; + extern struct machdep_calls __machine_desc_end; + + /* + * Iterate all ppc_md structures until we find the proper + * one for the current machine type + */ + DBG("Probing machine type ...\n"); + + for (machine_id = &__machine_desc_start; + machine_id < &__machine_desc_end; + machine_id++) { + DBG(" %s ...", machine_id->name); + memcpy(&ppc_md, machine_id, sizeof(struct machdep_calls)); + if (ppc_md.probe()) { + DBG(" match !\n"); + break; + } + DBG("\n"); + } + /* What can we do if we didn't find ? */ + if (machine_id >= &__machine_desc_end) { + DBG("No suitable machine found !\n"); + for (;;); + } + + printk(KERN_INFO "Using %s machine description\n", ppc_md.name); +} diff --git a/arch/powerpc/kernel/setup_32.c b/arch/powerpc/kernel/setup_32.c index a2c89435abe..ae9c33d7073 100644 --- a/arch/powerpc/kernel/setup_32.c +++ b/arch/powerpc/kernel/setup_32.c @@ -67,10 +67,6 @@ unsigned int DMA_MODE_WRITE; int have_of = 1; #ifdef CONFIG_PPC_MULTIPLATFORM -extern void prep_init(void); -extern void pmac_init(void); -extern void chrp_init(void); - dev_t boot_dev; #endif /* CONFIG_PPC_MULTIPLATFORM */ @@ -82,9 +78,6 @@ unsigned long SYSRQ_KEY = 0x54; unsigned long vgacon_remap_base; #endif -struct machdep_calls ppc_md; -EXPORT_SYMBOL(ppc_md); - /* * These are used in binfmt_elf.c to put aux entries on the stack * for each elf executable being started. @@ -120,48 +113,6 @@ unsigned long __init early_init(unsigned long dt_ptr) return KERNELBASE + offset; } -#ifdef CONFIG_PPC_MULTIPLATFORM -/* - * The PPC_MULTIPLATFORM version of platform_init... - */ -void __init platform_init(void) -{ - /* if we didn't get any bootinfo telling us what we are... */ - if (_machine == 0) { - /* prep boot loader tells us if we're prep or not */ - if ( *(unsigned long *)(KERNELBASE) == (0xdeadc0de) ) - _machine = _MACH_prep; - } - -#ifdef CONFIG_PPC_PREP - /* not much more to do here, if prep */ - if (_machine == _MACH_prep) { - prep_init(); - return; - } -#endif - -#ifdef CONFIG_ADB - if (strstr(cmd_line, "adb_sync")) { - extern int __adb_probe_sync; - __adb_probe_sync = 1; - } -#endif /* CONFIG_ADB */ - - switch (_machine) { -#ifdef CONFIG_PPC_PMAC - case _MACH_Pmac: - pmac_init(); - break; -#endif -#ifdef CONFIG_PPC_CHRP - case _MACH_chrp: - chrp_init(); - break; -#endif - } -} -#endif /* * Find out what kind of machine we're on and save any data we need @@ -187,8 +138,12 @@ void __init machine_init(unsigned long dt_ptr, unsigned long phys) strlcpy(cmd_line, CONFIG_CMDLINE, sizeof(cmd_line)); #endif /* CONFIG_CMDLINE */ - /* Base init based on machine type */ +#ifdef CONFIG_PPC_MULTIPLATFORM + probe_machine(); +#else + /* Base init based on machine type. Obsoloete, please kill ! */ platform_init(); +#endif #ifdef CONFIG_6xx if (cpu_has_feature(CPU_FTR_CAN_DOZE) || @@ -359,7 +314,4 @@ void __init setup_arch(char **cmdline_p) if ( ppc_md.progress ) ppc_md.progress("arch: exit", 0x3eab); paging_init(); - - /* this is for modules since _machine can be a define -- Cort */ - ppc_md.ppc_machine = _machine; } diff --git a/arch/powerpc/kernel/setup_64.c b/arch/powerpc/kernel/setup_64.c index 5b63a861ef4..6aea1fb74b6 100644 --- a/arch/powerpc/kernel/setup_64.c +++ b/arch/powerpc/kernel/setup_64.c @@ -95,11 +95,6 @@ int dcache_bsize; int icache_bsize; int ucache_bsize; -/* The main machine-dep calls structure - */ -struct machdep_calls ppc_md; -EXPORT_SYMBOL(ppc_md); - #ifdef CONFIG_MAGIC_SYSRQ unsigned long SYSRQ_KEY; #endif /* CONFIG_MAGIC_SYSRQ */ @@ -160,32 +155,6 @@ early_param("smt-enabled", early_smt_enabled); #define check_smt_enabled() #endif /* CONFIG_SMP */ -extern struct machdep_calls pSeries_md; -extern struct machdep_calls pmac_md; -extern struct machdep_calls maple_md; -extern struct machdep_calls cell_md; -extern struct machdep_calls iseries_md; - -/* Ultimately, stuff them in an elf section like initcalls... */ -static struct machdep_calls __initdata *machines[] = { -#ifdef CONFIG_PPC_PSERIES - &pSeries_md, -#endif /* CONFIG_PPC_PSERIES */ -#ifdef CONFIG_PPC_PMAC - &pmac_md, -#endif /* CONFIG_PPC_PMAC */ -#ifdef CONFIG_PPC_MAPLE - &maple_md, -#endif /* CONFIG_PPC_MAPLE */ -#ifdef CONFIG_PPC_CELL - &cell_md, -#endif -#ifdef CONFIG_PPC_ISERIES - &iseries_md, -#endif - NULL -}; - /* * Early initialization entry point. This is called by head.S * with MMU translation disabled. We rely on the "feature" of @@ -207,12 +176,10 @@ static struct machdep_calls __initdata *machines[] = { void __init early_setup(unsigned long dt_ptr) { - static struct machdep_calls **mach; - /* Enable early debugging if any specified (see udbg.h) */ udbg_early_init(); - DBG(" -> early_setup()\n"); + DBG(" -> early_setup(), dt_ptr: 0x%lx\n", dt_ptr); /* * Do early initializations using the flattened device @@ -229,22 +196,8 @@ void __init early_setup(unsigned long dt_ptr) get_paca()->stab_real = __pa((u64)&initial_stab); get_paca()->stab_addr = (u64)&initial_stab; - /* - * Iterate all ppc_md structures until we find the proper - * one for the current machine type - */ - DBG("Probing machine type for platform %x...\n", _machine); - - for (mach = machines; *mach; mach++) { - if ((*mach)->probe(_machine)) - break; - } - /* What can we do if we didn't find ? */ - if (*mach == NULL) { - DBG("No suitable machine found !\n"); - for (;;); - } - ppc_md = **mach; + /* Probe the machine type */ + probe_machine(); #ifdef CONFIG_CRASH_DUMP kdump_setup(); @@ -346,7 +299,7 @@ static void __init initialize_cache_info(void) const char *dc, *ic; /* Then read cache informations */ - if (_machine == PLATFORM_POWERMAC) { + if (machine_is(powermac)) { dc = "d-cache-block-size"; ic = "i-cache-block-size"; } else { @@ -490,7 +443,6 @@ void __init setup_system(void) printk("ppc64_pft_size = 0x%lx\n", ppc64_pft_size); printk("ppc64_interrupt_controller = 0x%ld\n", ppc64_interrupt_controller); - printk("platform = 0x%x\n", _machine); printk("physicalMemorySize = 0x%lx\n", lmb_phys_mem_size()); printk("ppc64_caches.dcache_line_size = 0x%x\n", ppc64_caches.dline_size); diff --git a/arch/powerpc/kernel/traps.c b/arch/powerpc/kernel/traps.c index 98660aedeeb..27600c9432b 100644 --- a/arch/powerpc/kernel/traps.c +++ b/arch/powerpc/kernel/traps.c @@ -97,7 +97,6 @@ static DEFINE_SPINLOCK(die_lock); int die(const char *str, struct pt_regs *regs, long err) { static int die_counter, crash_dump_start = 0; - int nl = 0; if (debugger(regs)) return 1; @@ -106,7 +105,7 @@ int die(const char *str, struct pt_regs *regs, long err) spin_lock_irq(&die_lock); bust_spinlocks(1); #ifdef CONFIG_PMAC_BACKLIGHT - if (_machine == _MACH_Pmac) { + if (machine_is(powermac)) { set_backlight_enable(1); set_backlight_level(BACKLIGHT_MAX); } @@ -114,46 +113,18 @@ int die(const char *str, struct pt_regs *regs, long err) printk("Oops: %s, sig: %ld [#%d]\n", str, err, ++die_counter); #ifdef CONFIG_PREEMPT printk("PREEMPT "); - nl = 1; #endif #ifdef CONFIG_SMP printk("SMP NR_CPUS=%d ", NR_CPUS); - nl = 1; #endif #ifdef CONFIG_DEBUG_PAGEALLOC printk("DEBUG_PAGEALLOC "); - nl = 1; #endif #ifdef CONFIG_NUMA printk("NUMA "); - nl = 1; #endif -#ifdef CONFIG_PPC64 - switch (_machine) { - case PLATFORM_PSERIES: - printk("PSERIES "); - nl = 1; - break; - case PLATFORM_PSERIES_LPAR: - printk("PSERIES LPAR "); - nl = 1; - break; - case PLATFORM_ISERIES_LPAR: - printk("ISERIES LPAR "); - nl = 1; - break; - case PLATFORM_POWERMAC: - printk("POWERMAC "); - nl = 1; - break; - case PLATFORM_CELL: - printk("CELL "); - nl = 1; - break; - } -#endif - if (nl) - printk("\n"); + printk("%s\n", ppc_md.name ? "" : ppc_md.name); + print_modules(); show_regs(regs); bust_spinlocks(0); diff --git a/arch/powerpc/kernel/vdso.c b/arch/powerpc/kernel/vdso.c index ec837036842..573afb68d69 100644 --- a/arch/powerpc/kernel/vdso.c +++ b/arch/powerpc/kernel/vdso.c @@ -33,6 +33,7 @@ #include #include #include +#include #include #include @@ -667,7 +668,13 @@ void __init vdso_init(void) vdso_data->version.major = SYSTEMCFG_MAJOR; vdso_data->version.minor = SYSTEMCFG_MINOR; vdso_data->processor = mfspr(SPRN_PVR); - vdso_data->platform = _machine; + /* + * Fake the old platform number for pSeries and iSeries and add + * in LPAR bit if necessary + */ + vdso_data->platform = machine_is(iseries) ? 0x200 : 0x100; + if (firmware_has_feature(FW_FEATURE_LPAR)) + vdso_data->platform |= 1; vdso_data->physicalMemorySize = lmb_phys_mem_size(); vdso_data->dcache_size = ppc64_caches.dsize; vdso_data->dcache_line_size = ppc64_caches.dline_size; diff --git a/arch/powerpc/kernel/vmlinux.lds.S b/arch/powerpc/kernel/vmlinux.lds.S index 7fa7b15fd8e..fe79c2584cb 100644 --- a/arch/powerpc/kernel/vmlinux.lds.S +++ b/arch/powerpc/kernel/vmlinux.lds.S @@ -1,9 +1,11 @@ #include #ifdef CONFIG_PPC64 #include +#define PROVIDE32(x) PROVIDE(__unused__##x) #else #define PAGE_SIZE 4096 #define KERNELBASE CONFIG_KERNEL_START +#define PROVIDE32(x) PROVIDE(x) #endif #include @@ -18,43 +20,42 @@ jiffies = jiffies_64 + 4; #endif SECTIONS { - /* Sections to be discarded. */ - /DISCARD/ : { - *(.exitcall.exit) - *(.exit.data) - } - - . = KERNELBASE; - - /* Read-only sections, merged into text segment: */ - .text : { - *(.text .text.*) - SCHED_TEXT - LOCK_TEXT - KPROBES_TEXT - *(.fixup) -#ifdef CONFIG_PPC32 - *(.got1) - __got2_start = .; - *(.got2) - __got2_end = .; -#else - . = ALIGN(PAGE_SIZE); - _etext = .; -#endif - } -#ifdef CONFIG_PPC32 - _etext = .; - PROVIDE (etext = .); + /* Sections to be discarded. */ + /DISCARD/ : { + *(.exitcall.exit) + *(.exit.data) + } - RODATA - .fini : { *(.fini) } =0 - .ctors : { *(.ctors) } - .dtors : { *(.dtors) } + . = KERNELBASE; - .fixup : { *(.fixup) } -#endif +/* + * Text, read only data and other permanent read-only sections + */ + + /* Text and gots */ + .text : { + *(.text .text.*) + SCHED_TEXT + LOCK_TEXT + KPROBES_TEXT + *(.fixup) +#ifdef CONFIG_PPC32 + *(.got1) + __got2_start = .; + *(.got2) + __got2_end = .; +#endif /* CONFIG_PPC32 */ + + . = ALIGN(PAGE_SIZE); + _etext = .; + PROVIDE32 (etext = .); + } + + /* Read-only data */ + RODATA + + /* Exception & bug tables */ __ex_table : { __start___ex_table = .; *(__ex_table) @@ -67,192 +68,172 @@ SECTIONS __stop___bug_table = .; } -#ifdef CONFIG_PPC64 +/* + * Init sections discarded at runtime + */ + . = ALIGN(PAGE_SIZE); + __init_begin = .; + + .init.text : { + _sinittext = .; + *(.init.text) + _einittext = .; + } + + /* .exit.text is discarded at runtime, not link time, + * to deal with references from __bug_table + */ + .exit.text : { *(.exit.text) } + + .init.data : { + *(.init.data); + __vtop_table_begin = .; + *(.vtop_fixup); + __vtop_table_end = .; + __ptov_table_begin = .; + *(.ptov_fixup); + __ptov_table_end = .; + } + + . = ALIGN(16); + .init.setup : { + __setup_start = .; + *(.init.setup) + __setup_end = .; + } + + .initcall.init : { + __initcall_start = .; + *(.initcall1.init) + *(.initcall2.init) + *(.initcall3.init) + *(.initcall4.init) + *(.initcall5.init) + *(.initcall6.init) + *(.initcall7.init) + __initcall_end = .; + } + + .con_initcall.init : { + __con_initcall_start = .; + *(.con_initcall.init) + __con_initcall_end = .; + } + + SECURITY_INIT + + . = ALIGN(8); __ftr_fixup : { __start___ftr_fixup = .; *(__ftr_fixup) __stop___ftr_fixup = .; } - RODATA -#endif + . = ALIGN(PAGE_SIZE); + .init.ramfs : { + __initramfs_start = .; + *(.init.ramfs) + __initramfs_end = .; + } #ifdef CONFIG_PPC32 - /* Read-write section, merged into data segment: */ - . = ALIGN(PAGE_SIZE); - _sdata = .; - .data : - { - *(.data) - *(.data1) - *(.sdata) - *(.sdata2) - *(.got.plt) *(.got) - *(.dynamic) - CONSTRUCTORS - } - - . = ALIGN(PAGE_SIZE); - __nosave_begin = .; - .data_nosave : { *(.data.nosave) } - . = ALIGN(PAGE_SIZE); - __nosave_end = .; - - . = ALIGN(32); - .data.cacheline_aligned : { *(.data.cacheline_aligned) } - - _edata = .; - PROVIDE (edata = .); - - . = ALIGN(8192); - .data.init_task : { *(.data.init_task) } + . = ALIGN(32); +#else + . = ALIGN(128); #endif + .data.percpu : { + __per_cpu_start = .; + *(.data.percpu) + __per_cpu_end = .; + } - /* will be freed after init */ - . = ALIGN(PAGE_SIZE); - __init_begin = .; - .init.text : { - _sinittext = .; - *(.init.text) - _einittext = .; - } -#ifdef CONFIG_PPC32 - /* .exit.text is discarded at runtime, not link time, - to deal with references from __bug_table */ - .exit.text : { *(.exit.text) } -#endif - .init.data : { - *(.init.data); - __vtop_table_begin = .; - *(.vtop_fixup); - __vtop_table_end = .; - __ptov_table_begin = .; - *(.ptov_fixup); - __ptov_table_end = .; - } - - . = ALIGN(16); - .init.setup : { - __setup_start = .; - *(.init.setup) - __setup_end = .; - } - - .initcall.init : { - __initcall_start = .; - *(.initcall1.init) - *(.initcall2.init) - *(.initcall3.init) - *(.initcall4.init) - *(.initcall5.init) - *(.initcall6.init) - *(.initcall7.init) - __initcall_end = .; - } - - .con_initcall.init : { - __con_initcall_start = .; - *(.con_initcall.init) - __con_initcall_end = .; - } - - SECURITY_INIT + . = ALIGN(8); + .machine.desc : { + __machine_desc_start = . ; + *(.machine.desc) + __machine_desc_end = . ; + } + + /* freed after init ends here */ + . = ALIGN(PAGE_SIZE); + __init_end = .; + +/* + * And now the various read/write data + */ + + . = ALIGN(PAGE_SIZE); + _sdata = .; #ifdef CONFIG_PPC32 - __start___ftr_fixup = .; - __ftr_fixup : { *(__ftr_fixup) } - __stop___ftr_fixup = .; + .data : + { + *(.data) + *(.sdata) + *(.got.plt) *(.got) + } #else - . = ALIGN(PAGE_SIZE); - .init.ramfs : { - __initramfs_start = .; - *(.init.ramfs) - __initramfs_end = .; - } -#endif + .data : { + *(.data .data.rel* .toc1) + *(.branch_lt) + } -#ifdef CONFIG_PPC32 - . = ALIGN(32); + .opd : { + *(.opd) + } + + .got : { + __toc_start = .; + *(.got) + *(.toc) + } #endif - .data.percpu : { - __per_cpu_start = .; - *(.data.percpu) - __per_cpu_end = .; - } - . = ALIGN(PAGE_SIZE); -#ifdef CONFIG_PPC64 - . = ALIGN(16384); - __init_end = .; - /* freed after init ends here */ - - /* Read/write sections */ - . = ALIGN(PAGE_SIZE); - . = ALIGN(16384); - _sdata = .; - /* The initial task and kernel stack */ - .data.init_task : { - *(.data.init_task) - } - - . = ALIGN(PAGE_SIZE); - .data.page_aligned : { - *(.data.page_aligned) - } - - .data.cacheline_aligned : { - *(.data.cacheline_aligned) - } - - .data : { - *(.data .data.rel* .toc1) - *(.branch_lt) - } - - .opd : { - *(.opd) - } - - .got : { - __toc_start = .; - *(.got) - *(.toc) - . = ALIGN(PAGE_SIZE); - _edata = .; - } - - . = ALIGN(PAGE_SIZE); + . = ALIGN(PAGE_SIZE); + _edata = .; + PROVIDE32 (edata = .); + + /* The initial task and kernel stack */ +#ifdef CONFIG_PPC32 + . = ALIGN(8192); #else - __initramfs_start = .; - .init.ramfs : { - *(.init.ramfs) - } - __initramfs_end = .; + . = ALIGN(16384); +#endif + .data.init_task : { + *(.data.init_task) + } - . = ALIGN(4096); - __init_end = .; + . = ALIGN(PAGE_SIZE); + .data.page_aligned : { + *(.data.page_aligned) + } - . = ALIGN(4096); - _sextratext = .; - _eextratext = .; + .data.cacheline_aligned : { + *(.data.cacheline_aligned) + } - __bss_start = .; -#endif + . = ALIGN(PAGE_SIZE); + __data_nosave : { + __nosave_begin = .; + *(.data.nosave) + . = ALIGN(PAGE_SIZE); + __nosave_end = .; + } - .bss : { - __bss_start = .; - *(.sbss) *(.scommon) - *(.dynbss) - *(.bss) - *(COMMON) - __bss_stop = .; - } +/* + * And finally the bss + */ + + .bss : { + __bss_start = .; + *(.sbss) *(.scommon) + *(.dynbss) + *(.bss) + *(COMMON) + __bss_stop = .; + } -#ifdef CONFIG_PPC64 - . = ALIGN(PAGE_SIZE); -#endif - _end = . ; -#ifdef CONFIG_PPC32 - PROVIDE (end = .); -#endif + . = ALIGN(PAGE_SIZE); + _end = . ; + PROVIDE32 (end = .); } diff --git a/arch/powerpc/mm/hash_utils_64.c b/arch/powerpc/mm/hash_utils_64.c index 89b35c18131..c006d903963 100644 --- a/arch/powerpc/mm/hash_utils_64.c +++ b/arch/powerpc/mm/hash_utils_64.c @@ -167,7 +167,7 @@ int htab_bolt_mapping(unsigned long vstart, unsigned long vend, * normal insert callback here. */ #ifdef CONFIG_PPC_ISERIES - if (_machine == PLATFORM_ISERIES_LPAR) + if (machine_is(iseries)) ret = iSeries_hpte_insert(hpteg, va, paddr, tmp_mode, @@ -176,7 +176,7 @@ int htab_bolt_mapping(unsigned long vstart, unsigned long vend, else #endif #ifdef CONFIG_PPC_PSERIES - if (_machine & PLATFORM_LPAR) + if (machine_is(pseries) && firmware_has_feature(FW_FEATURE_LPAR)) ret = pSeries_lpar_hpte_insert(hpteg, va, paddr, tmp_mode, @@ -295,8 +295,7 @@ static void __init htab_init_page_sizes(void) * Not in the device-tree, let's fallback on known size * list for 16M capable GP & GR */ - if ((_machine != PLATFORM_ISERIES_LPAR) && - cpu_has_feature(CPU_FTR_16M_PAGE)) + if (cpu_has_feature(CPU_FTR_16M_PAGE) && !machine_is(iseries)) memcpy(mmu_psize_defs, mmu_psize_defaults_gp, sizeof(mmu_psize_defaults_gp)); found: diff --git a/arch/powerpc/platforms/cell/setup.c b/arch/powerpc/platforms/cell/setup.c index fec8e65b36e..dac5d0365fd 100644 --- a/arch/powerpc/platforms/cell/setup.c +++ b/arch/powerpc/platforms/cell/setup.c @@ -195,9 +195,13 @@ static void __init cell_init_early(void) } -static int __init cell_probe(int platform) +static int __init cell_probe(void) { - if (platform != PLATFORM_CELL) + /* XXX This is temporary, the Cell maintainer will come up with + * more appropriate detection logic + */ + unsigned long root = of_get_flat_dt_root(); + if (!of_flat_dt_is_compatible(root, "IBM,CPBW-1.0")) return 0; return 1; @@ -212,7 +216,8 @@ static int cell_check_legacy_ioport(unsigned int baseport) return -ENODEV; } -struct machdep_calls __initdata cell_md = { +define_machine(cell) { + .name = "Cell", .probe = cell_probe, .setup_arch = cell_setup_arch, .init_early = cell_init_early, diff --git a/arch/powerpc/platforms/chrp/setup.c b/arch/powerpc/platforms/chrp/setup.c index 9c718bb2305..23a20171870 100644 --- a/arch/powerpc/platforms/chrp/setup.c +++ b/arch/powerpc/platforms/chrp/setup.c @@ -292,6 +292,10 @@ void __init chrp_setup_arch(void) pci_create_OF_bus_map(); +#ifdef CONFIG_SMP + smp_ops = &chrp_smp_ops; +#endif /* CONFIG_SMP */ + /* * Print the banner, then scroll down so boot progress * can be printed. -- Cort @@ -506,8 +510,15 @@ chrp_init2(void) ppc_md.progress(" Have fun! ", 0x7777); } -void __init chrp_init(void) +static int __init chrp_probe(void) { + char *dtype = of_get_flat_dt_prop(of_get_flat_dt_root(), + "device_type", NULL); + if (dtype == NULL) + return 0; + if (strcmp(dtype, "chrp")) + return 0; + ISA_DMA_THRESHOLD = ~0L; DMA_MODE_READ = 0x44; DMA_MODE_WRITE = 0x48; diff --git a/arch/powerpc/platforms/iseries/setup.c b/arch/powerpc/platforms/iseries/setup.c index 155aa690e4b..6ce8a404ba6 100644 --- a/arch/powerpc/platforms/iseries/setup.c +++ b/arch/powerpc/platforms/iseries/setup.c @@ -675,9 +675,10 @@ static void iseries_dedicated_idle(void) void __init iSeries_init_IRQ(void) { } #endif -static int __init iseries_probe(int platform) +static int __init iseries_probe(void) { - if (PLATFORM_ISERIES_LPAR != platform) + unsigned long root = of_get_flat_dt_root(); + if (!of_flat_dt_is_compatible(root, "IBM,iSeries")) return 0; powerpc_firmware_features |= FW_FEATURE_ISERIES; @@ -686,7 +687,8 @@ static int __init iseries_probe(int platform) return 1; } -struct machdep_calls __initdata iseries_md = { +define_machine(iseries) { + .name = "iSeries", .setup_arch = iSeries_setup_arch, .show_cpuinfo = iSeries_show_cpuinfo, .init_IRQ = iSeries_init_IRQ, @@ -930,7 +932,6 @@ void build_flat_dt(struct iseries_flat_dt *dt, unsigned long phys_mem_size) /* /chosen */ dt_start_node(dt, "chosen"); - dt_prop_u32(dt, "linux,platform", PLATFORM_ISERIES_LPAR); dt_prop_str(dt, "bootargs", cmd_line); if (cmd_mem_limit) dt_prop_u64(dt, "linux,memory-limit", cmd_mem_limit); diff --git a/arch/powerpc/platforms/maple/setup.c b/arch/powerpc/platforms/maple/setup.c index 137d6063182..24c0aef4ea3 100644 --- a/arch/powerpc/platforms/maple/setup.c +++ b/arch/powerpc/platforms/maple/setup.c @@ -259,9 +259,10 @@ static void __init maple_progress(char *s, unsigned short hex) /* * Called very early, MMU is off, device-tree isn't unflattened */ -static int __init maple_probe(int platform) +static int __init maple_probe(void) { - if (platform != PLATFORM_MAPLE) + unsigned long root = of_get_flat_dt_root(); + if (!of_flat_dt_is_compatible(root, "Momentum,Maple")) return 0; /* * On U3, the DART (iommu) must be allocated now since it @@ -274,7 +275,8 @@ static int __init maple_probe(int platform) return 1; } -struct machdep_calls __initdata maple_md = { +define_machine(maple_md) { + .name = "Maple", .probe = maple_probe, .setup_arch = maple_setup_arch, .init_early = maple_init_early, diff --git a/arch/powerpc/platforms/powermac/bootx_init.c b/arch/powerpc/platforms/powermac/bootx_init.c index a94571be65c..eacbfd9beab 100644 --- a/arch/powerpc/platforms/powermac/bootx_init.c +++ b/arch/powerpc/platforms/powermac/bootx_init.c @@ -161,9 +161,7 @@ static void __init bootx_dt_add_prop(char *name, void *data, int size, static void __init bootx_add_chosen_props(unsigned long base, unsigned long *mem_end) { - u32 val = _MACH_Pmac; - - bootx_dt_add_prop("linux,platform", &val, 4, mem_end); + u32 val; if (bootx_info->kernelParamsOffset) { char *args = (char *)((unsigned long)bootx_info) + diff --git a/arch/powerpc/platforms/powermac/feature.c b/arch/powerpc/platforms/powermac/feature.c index e49eddd5042..a5063cd675c 100644 --- a/arch/powerpc/platforms/powermac/feature.c +++ b/arch/powerpc/platforms/powermac/feature.c @@ -2951,7 +2951,7 @@ static void *pmac_early_vresume_data; void pmac_set_early_video_resume(void (*proc)(void *data), void *data) { - if (_machine != _MACH_Pmac) + if (!machine_is(powermac)) return; preempt_disable(); pmac_early_vresume_proc = proc; diff --git a/arch/powerpc/platforms/powermac/low_i2c.c b/arch/powerpc/platforms/powermac/low_i2c.c index 87eb6bb7f0e..e14f9ac55cf 100644 --- a/arch/powerpc/platforms/powermac/low_i2c.c +++ b/arch/powerpc/platforms/powermac/low_i2c.c @@ -1457,6 +1457,9 @@ int __init pmac_i2c_init(void) return 0; i2c_inited = 1; + if (!machine_is(powermac)) + return 0; + /* Probe keywest-i2c busses */ kw_i2c_probe(); diff --git a/arch/powerpc/platforms/powermac/nvram.c b/arch/powerpc/platforms/powermac/nvram.c index 3aa3477b86f..262f967b880 100644 --- a/arch/powerpc/platforms/powermac/nvram.c +++ b/arch/powerpc/platforms/powermac/nvram.c @@ -597,7 +597,7 @@ int __init pmac_nvram_init(void) } #ifdef CONFIG_PPC32 - if (_machine == _MACH_chrp && nvram_naddrs == 1) { + if (machine_is(chrp) && nvram_naddrs == 1) { nvram_data = ioremap(r1.start, s1); nvram_mult = 1; ppc_md.nvram_read_val = direct_nvram_read_byte; diff --git a/arch/powerpc/platforms/powermac/pci.c b/arch/powerpc/platforms/powermac/pci.c index de3f30e6b33..f5d8d15d74f 100644 --- a/arch/powerpc/platforms/powermac/pci.c +++ b/arch/powerpc/platforms/powermac/pci.c @@ -1201,7 +1201,7 @@ void __init pmac_pcibios_after_init(void) #ifdef CONFIG_PPC32 void pmac_pci_fixup_cardbus(struct pci_dev* dev) { - if (_machine != _MACH_Pmac) + if (!machine_is(powermac)) return; /* * Fix the interrupt routing on the various cardbus bridges @@ -1244,8 +1244,9 @@ void pmac_pci_fixup_pciata(struct pci_dev* dev) * On PowerMacs, we try to switch any PCI ATA controller to * fully native mode */ - if (_machine != _MACH_Pmac) + if (!machine_is(powermac)) return; + /* Some controllers don't have the class IDE */ if (dev->vendor == PCI_VENDOR_ID_PROMISE) switch(dev->device) { diff --git a/arch/powerpc/platforms/powermac/pfunc_base.c b/arch/powerpc/platforms/powermac/pfunc_base.c index 9b7150f1041..a3bd3e728fa 100644 --- a/arch/powerpc/platforms/powermac/pfunc_base.c +++ b/arch/powerpc/platforms/powermac/pfunc_base.c @@ -336,6 +336,8 @@ int __init pmac_pfunc_base_install(void) return 0; pfbase_inited = 1; + if (!machine_is(powermac)) + return 0; DBG("Installing base platform functions...\n"); diff --git a/arch/powerpc/platforms/powermac/setup.c b/arch/powerpc/platforms/powermac/setup.c index c2696d00672..4d15e396655 100644 --- a/arch/powerpc/platforms/powermac/setup.c +++ b/arch/powerpc/platforms/powermac/setup.c @@ -350,6 +350,13 @@ static void __init pmac_setup_arch(void) smp_ops = &psurge_smp_ops; #endif #endif /* CONFIG_SMP */ + +#ifdef CONFIG_ADB + if (strstr(cmd_line, "adb_sync")) { + extern int __adb_probe_sync; + __adb_probe_sync = 1; + } +#endif /* CONFIG_ADB */ } char *bootpath; @@ -576,30 +583,6 @@ pmac_halt(void) pmac_power_off(); } -#ifdef CONFIG_PPC32 -void __init pmac_init(void) -{ - /* isa_io_base gets set in pmac_pci_init */ - isa_mem_base = PMAC_ISA_MEM_BASE; - pci_dram_offset = PMAC_PCI_DRAM_OFFSET; - ISA_DMA_THRESHOLD = ~0L; - DMA_MODE_READ = 1; - DMA_MODE_WRITE = 2; - - ppc_md = pmac_md; - -#if defined(CONFIG_BLK_DEV_IDE) || defined(CONFIG_BLK_DEV_IDE_MODULE) -#ifdef CONFIG_BLK_DEV_IDE_PMAC - ppc_ide_md.ide_init_hwif = pmac_ide_init_hwif_ports; - ppc_ide_md.default_io_base = pmac_ide_get_base; -#endif /* CONFIG_BLK_DEV_IDE_PMAC */ -#endif /* defined(CONFIG_BLK_DEV_IDE) || defined(CONFIG_BLK_DEV_IDE_MODULE) */ - - if (ppc_md.progress) ppc_md.progress("pmac_init(): exit", 0); - -} -#endif - /* * Early initialization. */ @@ -646,6 +629,12 @@ static int __init pmac_declare_of_platform_devices(void) { struct device_node *np; + if (machine_is(chrp)) + return -1; + + if (!machine_is(powermac)) + return 0; + np = of_find_node_by_name(NULL, "valkyrie"); if (np) of_platform_device_create(np, "valkyrie", NULL); @@ -666,12 +655,15 @@ device_initcall(pmac_declare_of_platform_devices); /* * Called very early, MMU is off, device-tree isn't unflattened */ -static int __init pmac_probe(int platform) +static int __init pmac_probe(void) { -#ifdef CONFIG_PPC64 - if (platform != PLATFORM_POWERMAC) + unsigned long root = of_get_flat_dt_root(); + + if (!of_flat_dt_is_compatible(root, "Power Macintosh") && + !of_flat_dt_is_compatible(root, "MacRISC")) return 0; +#ifdef CONFIG_PPC64 /* * On U3, the DART (iommu) must be allocated now since it * has an impact on htab_initialize (due to the large page it @@ -681,6 +673,23 @@ static int __init pmac_probe(int platform) alloc_dart_table(); #endif +#ifdef CONFIG_PPC32 + /* isa_io_base gets set in pmac_pci_init */ + isa_mem_base = PMAC_ISA_MEM_BASE; + pci_dram_offset = PMAC_PCI_DRAM_OFFSET; + ISA_DMA_THRESHOLD = ~0L; + DMA_MODE_READ = 1; + DMA_MODE_WRITE = 2; + +#if defined(CONFIG_BLK_DEV_IDE) || defined(CONFIG_BLK_DEV_IDE_MODULE) +#ifdef CONFIG_BLK_DEV_IDE_PMAC + ppc_ide_md.ide_init_hwif = pmac_ide_init_hwif_ports; + ppc_ide_md.default_io_base = pmac_ide_get_base; +#endif /* CONFIG_BLK_DEV_IDE_PMAC */ +#endif /* defined(CONFIG_BLK_DEV_IDE) || defined(CONFIG_BLK_DEV_IDE_MODULE) */ + +#endif /* CONFIG_PPC32 */ + #ifdef CONFIG_PMAC_SMU /* * SMU based G5s need some memory below 2Gb, at least the current @@ -709,10 +718,8 @@ static int pmac_pci_probe_mode(struct pci_bus *bus) } #endif -struct machdep_calls __initdata pmac_md = { -#if defined(CONFIG_HOTPLUG_CPU) && defined(CONFIG_PPC64) - .cpu_die = generic_mach_cpu_die, -#endif +define_machine(powermac) { + .name = "PowerMac", .probe = pmac_probe, .setup_arch = pmac_setup_arch, .init_early = pmac_init_early, @@ -746,4 +753,7 @@ struct machdep_calls __initdata pmac_md = { .pcibios_after_init = pmac_pcibios_after_init, .phys_mem_access_prot = pci_phys_mem_access_prot, #endif +#if defined(CONFIG_HOTPLUG_CPU) && defined(CONFIG_PPC64) + .cpu_die = generic_mach_cpu_die, +#endif }; diff --git a/arch/powerpc/platforms/powermac/time.c b/arch/powerpc/platforms/powermac/time.c index 5d9afa1fa02..890758aa966 100644 --- a/arch/powerpc/platforms/powermac/time.c +++ b/arch/powerpc/platforms/powermac/time.c @@ -336,10 +336,10 @@ static struct pmu_sleep_notifier time_sleep_notifier = { */ void __init pmac_calibrate_decr(void) { -#ifdef CONFIG_PM +#if defined(CONFIG_PM) && defined(CONFIG_ADB_PMU) /* XXX why here? */ pmu_register_sleep_notifier(&time_sleep_notifier); -#endif /* CONFIG_PM */ +#endif generic_calibrate_decr(); diff --git a/arch/powerpc/platforms/pseries/eeh.c b/arch/powerpc/platforms/pseries/eeh.c index 2ab9dcdfb41..9b2b1cb117b 100644 --- a/arch/powerpc/platforms/pseries/eeh.c +++ b/arch/powerpc/platforms/pseries/eeh.c @@ -1018,7 +1018,7 @@ static int __init eeh_init_proc(void) { struct proc_dir_entry *e; - if (platform_is_pseries()) { + if (machine_is(pseries)) { e = create_proc_entry("ppc64/eeh", 0, NULL); if (e) e->proc_fops = &proc_eeh_operations; diff --git a/arch/powerpc/platforms/pseries/pci.c b/arch/powerpc/platforms/pseries/pci.c index 946ad59e335..e97e67f5e07 100644 --- a/arch/powerpc/platforms/pseries/pci.c +++ b/arch/powerpc/platforms/pseries/pci.c @@ -120,7 +120,7 @@ static void fixup_winbond_82c105(struct pci_dev* dev) int i; unsigned int reg; - if (!platform_is_pseries()) + if (!machine_is(pseries)) return; printk("Using INTC for W82c105 IDE controller.\n"); diff --git a/arch/powerpc/platforms/pseries/pci_dlpar.c b/arch/powerpc/platforms/pseries/pci_dlpar.c index b3c2dcb1e4f..6bfacc21708 100644 --- a/arch/powerpc/platforms/pseries/pci_dlpar.c +++ b/arch/powerpc/platforms/pseries/pci_dlpar.c @@ -28,6 +28,7 @@ #include #include #include +#include static struct pci_bus * find_bus_among_children(struct pci_bus *bus, diff --git a/arch/powerpc/platforms/pseries/reconfig.c b/arch/powerpc/platforms/pseries/reconfig.c index 86cfa6ecdcf..9a4b592e40b 100644 --- a/arch/powerpc/platforms/pseries/reconfig.c +++ b/arch/powerpc/platforms/pseries/reconfig.c @@ -17,8 +17,9 @@ #include #include -#include +#include #include +#include @@ -508,7 +509,7 @@ static int proc_ppc64_create_ofdt(void) { struct proc_dir_entry *ent; - if (!platform_is_pseries()) + if (!machine_is(pseries)) return 0; ent = create_proc_entry("ppc64/ofdt", S_IWUSR, NULL); diff --git a/arch/powerpc/platforms/pseries/rtasd.c b/arch/powerpc/platforms/pseries/rtasd.c index a6f628d4c9d..fcc4d561a23 100644 --- a/arch/powerpc/platforms/pseries/rtasd.c +++ b/arch/powerpc/platforms/pseries/rtasd.c @@ -27,6 +27,7 @@ #include #include #include +#include #if 0 #define DEBUG(A...) printk(KERN_ERR A) @@ -481,7 +482,7 @@ static int __init rtas_init(void) { struct proc_dir_entry *entry; - if (!platform_is_pseries()) + if (!machine_is(pseries)) return 0; /* No RTAS */ diff --git a/arch/powerpc/platforms/pseries/setup.c b/arch/powerpc/platforms/pseries/setup.c index 1b0c4c034a2..b2fbf8ba8fb 100644 --- a/arch/powerpc/platforms/pseries/setup.c +++ b/arch/powerpc/platforms/pseries/setup.c @@ -372,24 +372,42 @@ static int pSeries_check_legacy_ioport(unsigned int baseport) /* * Called very early, MMU is off, device-tree isn't unflattened */ -extern struct machdep_calls pSeries_md; -static int __init pSeries_probe(int platform) +static int __init pSeries_probe_hypertas(unsigned long node, + const char *uname, int depth, + void *data) { - if (platform != PLATFORM_PSERIES && - platform != PLATFORM_PSERIES_LPAR) + if (depth != 1 || + (strcmp(uname, "rtas") != 0 && strcmp(uname, "rtas@0") != 0)) + return 0; + + if (of_get_flat_dt_prop(node, "ibm,hypertas-functions", NULL) != NULL) + powerpc_firmware_features |= FW_FEATURE_LPAR; + + return 1; +} + +static int __init pSeries_probe(void) +{ + char *dtype = of_get_flat_dt_prop(of_get_flat_dt_root(), + "device_type", NULL); + if (dtype == NULL) + return 0; + if (strcmp(dtype, "chrp")) return 0; - /* if we have some ppc_md fixups for LPAR to do, do - * it here ... - */ + DBG("pSeries detected, looking for LPAR capability...\n"); - if (platform == PLATFORM_PSERIES_LPAR) - powerpc_firmware_features |= FW_FEATURE_LPAR; + /* Now try to figure out if we are running on LPAR */ + of_scan_flat_dt(pSeries_probe_hypertas, NULL); + + DBG("Machine is%s LPAR !\n", + (powerpc_firmware_features & FW_FEATURE_LPAR) ? "" : " not"); return 1; } + DECLARE_PER_CPU(unsigned long, smt_snooze_delay); static void pseries_dedicated_idle_sleep(void) @@ -501,7 +519,8 @@ static void pseries_kexec_cpu_down(int crash_shutdown, int secondary) } #endif -struct machdep_calls __initdata pSeries_md = { +define_machine(pseries) { + .name = "pSeries", .probe = pSeries_probe, .setup_arch = pSeries_setup_arch, .init_early = pSeries_init_early, diff --git a/arch/ppc/platforms/prep_setup.c b/arch/ppc/platforms/prep_setup.c index a0fc628ffb1..fa46f8ce5c7 100644 --- a/arch/ppc/platforms/prep_setup.c +++ b/arch/ppc/platforms/prep_setup.c @@ -1067,15 +1067,13 @@ prep_map_io(void) static int __init prep_request_io(void) { - if (_machine == _MACH_prep) { #ifdef CONFIG_NVRAM - request_region(PREP_NVRAM_AS0, 0x8, "nvram"); + request_region(PREP_NVRAM_AS0, 0x8, "nvram"); #endif - request_region(0x00,0x20,"dma1"); - request_region(0x40,0x20,"timer"); - request_region(0x80,0x10,"dma page reg"); - request_region(0xc0,0x20,"dma2"); - } + request_region(0x00,0x20,"dma1"); + request_region(0x40,0x20,"timer"); + request_region(0x80,0x10,"dma page reg"); + request_region(0xc0,0x20,"dma2"); return 0; } diff --git a/drivers/char/generic_nvram.c b/drivers/char/generic_nvram.c index 1b5e01e6e12..43ff5981651 100644 --- a/drivers/char/generic_nvram.c +++ b/drivers/char/generic_nvram.c @@ -22,6 +22,9 @@ #include #include #include +#ifdef CONFIG_PPC_PMAC +#include +#endif #define NVRAM_SIZE 8192 @@ -92,7 +95,7 @@ static int nvram_ioctl(struct inode *inode, struct file *file, case IOC_NVRAM_GET_OFFSET: { int part, offset; - if (_machine != _MACH_Pmac) + if (!machine_is(powermac)) return -EINVAL; if (copy_from_user(&part, (void __user*)arg, sizeof(part)) != 0) return -EFAULT; diff --git a/drivers/ide/pci/via82cxxx.c b/drivers/ide/pci/via82cxxx.c index c85b87cb59d..3e677c4f8c2 100644 --- a/drivers/ide/pci/via82cxxx.c +++ b/drivers/ide/pci/via82cxxx.c @@ -440,7 +440,7 @@ static void __devinit init_hwif_via82cxxx(ide_hwif_t *hwif) #if defined(CONFIG_PPC_CHRP) && defined(CONFIG_PPC32) - if(_machine == _MACH_chrp && _chrp_type == _CHRP_Pegasos) { + if(machine_is(chrp) && _chrp_type == _CHRP_Pegasos) { hwif->irq = hwif->channel ? 15 : 14; } #endif diff --git a/drivers/ide/ppc/pmac.c b/drivers/ide/ppc/pmac.c index 5013b1285e2..78e30f80367 100644 --- a/drivers/ide/ppc/pmac.c +++ b/drivers/ide/ppc/pmac.c @@ -1677,7 +1677,7 @@ MODULE_DEVICE_TABLE(pci, pmac_ide_pci_match); void __init pmac_ide_probe(void) { - if (_machine != _MACH_Pmac) + if (!machine_is(powermac)) return; #ifdef CONFIG_BLK_DEV_IDE_PMAC_ATA100FIRST diff --git a/drivers/ieee1394/ohci1394.c b/drivers/ieee1394/ohci1394.c index b6b96fa04d6..314f3554003 100644 --- a/drivers/ieee1394/ohci1394.c +++ b/drivers/ieee1394/ohci1394.c @@ -3526,7 +3526,7 @@ static void ohci1394_pci_remove(struct pci_dev *pdev) static int ohci1394_pci_resume (struct pci_dev *pdev) { #ifdef CONFIG_PPC_PMAC - if (_machine == _MACH_Pmac) { + if (machine_is(powermac)) { struct device_node *of_node; /* Re-enable 1394 */ @@ -3545,7 +3545,7 @@ static int ohci1394_pci_resume (struct pci_dev *pdev) static int ohci1394_pci_suspend (struct pci_dev *pdev, pm_message_t state) { #ifdef CONFIG_PPC_PMAC - if (_machine == _MACH_Pmac) { + if (machine_is(powermac)) { struct device_node *of_node; /* Disable 1394 */ diff --git a/drivers/macintosh/adb.c b/drivers/macintosh/adb.c index d2ead1776c1..781d93b0bbd 100644 --- a/drivers/macintosh/adb.c +++ b/drivers/macintosh/adb.c @@ -42,6 +42,7 @@ #include #ifdef CONFIG_PPC #include +#include #endif @@ -294,7 +295,7 @@ int __init adb_init(void) int i; #ifdef CONFIG_PPC32 - if ( (_machine != _MACH_chrp) && (_machine != _MACH_Pmac) ) + if (!machine_is(chrp) && !machine_is(powermac)) return 0; #endif #ifdef CONFIG_MAC diff --git a/drivers/macintosh/adbhid.c b/drivers/macintosh/adbhid.c index c0b46bceb5d..0a4c680d4ac 100644 --- a/drivers/macintosh/adbhid.c +++ b/drivers/macintosh/adbhid.c @@ -1206,8 +1206,8 @@ init_ms_a3(int id) static int __init adbhid_init(void) { #ifndef CONFIG_MAC - if ( (_machine != _MACH_chrp) && (_machine != _MACH_Pmac) ) - return 0; + if (!machine_is(chrp) && !machine_is(powermac)) + return 0; #endif led_request.complete = 1; diff --git a/drivers/macintosh/mediabay.c b/drivers/macintosh/mediabay.c index 8dbf2852bae..53c1c790941 100644 --- a/drivers/macintosh/mediabay.c +++ b/drivers/macintosh/mediabay.c @@ -839,8 +839,8 @@ static int __init media_bay_init(void) media_bays[i].cd_index = -1; #endif } - if (_machine != _MACH_Pmac) - return -ENODEV; + if (!machine_is(powermac)) + return 0; macio_register_driver(&media_bay_driver); diff --git a/drivers/media/video/planb.c b/drivers/media/video/planb.c index 522e9ddeb08..d9e3cada52f 100644 --- a/drivers/media/video/planb.c +++ b/drivers/media/video/planb.c @@ -2156,7 +2156,7 @@ static int find_planb(void) struct pci_dev *pdev; int rc; - if (_machine != _MACH_Pmac) + if (!machine_is(powermac)) return 0; planb_devices = find_devices("planb"); diff --git a/drivers/net/tulip/de4x5.c b/drivers/net/tulip/de4x5.c index ee48bfd6734..46d087c5467 100644 --- a/drivers/net/tulip/de4x5.c +++ b/drivers/net/tulip/de4x5.c @@ -4160,7 +4160,7 @@ get_hw_addr(struct net_device *dev) ** If the address starts with 00 a0, we have to bit-reverse ** each byte of the address. */ - if ( (_machine & _MACH_Pmac) && + if ( machine_is(powermac) && (dev->dev_addr[0] == 0) && (dev->dev_addr[1] == 0xa0) ) { diff --git a/drivers/scsi/mesh.c b/drivers/scsi/mesh.c index d6d2125f904..f852421002e 100644 --- a/drivers/scsi/mesh.c +++ b/drivers/scsi/mesh.c @@ -1748,7 +1748,7 @@ static int mesh_host_reset(struct scsi_cmnd *cmd) static void set_mesh_power(struct mesh_state *ms, int state) { - if (_machine != _MACH_Pmac) + if (!machine_is(powermac)) return; if (state) { pmac_call_feature(PMAC_FTR_MESH_ENABLE, macio_get_of_node(ms->mdev), 0, 1); diff --git a/drivers/usb/core/hcd-pci.c b/drivers/usb/core/hcd-pci.c index e0afb5ad29e..0d2193b6923 100644 --- a/drivers/usb/core/hcd-pci.c +++ b/drivers/usb/core/hcd-pci.c @@ -296,7 +296,7 @@ done: #ifdef CONFIG_PPC_PMAC /* Disable ASIC clocks for USB */ - if (_machine == _MACH_Pmac) { + if (machine_is(powermac)) { struct device_node *of_node; of_node = pci_device_to_OF_node (dev); @@ -331,7 +331,7 @@ int usb_hcd_pci_resume (struct pci_dev *dev) #ifdef CONFIG_PPC_PMAC /* Reenable ASIC clocks for USB */ - if (_machine == _MACH_Pmac) { + if (machine_is(powermac)) { struct device_node *of_node; of_node = pci_device_to_OF_node (dev); diff --git a/drivers/video/aty/aty128fb.c b/drivers/video/aty/aty128fb.c index 620c9a934e0..f07be22e119 100644 --- a/drivers/video/aty/aty128fb.c +++ b/drivers/video/aty/aty128fb.c @@ -67,6 +67,7 @@ #include #ifdef CONFIG_PPC_PMAC +#include #include #include #include @@ -1748,7 +1749,7 @@ static int __init aty128_init(struct pci_dev *pdev, const struct pci_device_id * var = default_var; #ifdef CONFIG_PPC_PMAC - if (_machine == _MACH_Pmac) { + if (machine_is(powermac)) { /* Indicate sleep capability */ if (par->chip_gen == rage_M3) { pmac_call_feature(PMAC_FTR_DEVICE_CAN_WAKE, NULL, 0, 1); @@ -2011,7 +2012,7 @@ static int aty128fb_blank(int blank, struct fb_info *fb) return 0; #ifdef CONFIG_PMAC_BACKLIGHT - if ((_machine == _MACH_Pmac) && blank) + if (machine_is(powermac) && blank) set_backlight_enable(0); #endif /* CONFIG_PMAC_BACKLIGHT */ @@ -2029,7 +2030,7 @@ static int aty128fb_blank(int blank, struct fb_info *fb) aty128_set_lcd_enable(par, par->lcd_on && !blank); } #ifdef CONFIG_PMAC_BACKLIGHT - if ((_machine == _MACH_Pmac) && !blank) + if (machine_is(powermac) && !blank) set_backlight_enable(1); #endif /* CONFIG_PMAC_BACKLIGHT */ return 0; diff --git a/drivers/video/aty/atyfb_base.c b/drivers/video/aty/atyfb_base.c index 485be386a8f..1b1f24e2bfb 100644 --- a/drivers/video/aty/atyfb_base.c +++ b/drivers/video/aty/atyfb_base.c @@ -75,6 +75,7 @@ #include "ati_ids.h" #ifdef __powerpc__ +#include #include #include "../macmodes.h" #endif @@ -2516,7 +2517,7 @@ static int __init aty_init(struct fb_info *info, const char *name) memset(&var, 0, sizeof(var)); #ifdef CONFIG_PPC - if (_machine == _MACH_Pmac) { + if (machine_is(powermac)) { /* * FIXME: The NVRAM stuff should be put in a Mac-specific file, as it * applies to all Mac video cards @@ -2671,7 +2672,7 @@ static int atyfb_blank(int blank, struct fb_info *info) return 0; #ifdef CONFIG_PMAC_BACKLIGHT - if ((_machine == _MACH_Pmac) && blank > FB_BLANK_NORMAL) + if (machine_is(powermac) && blank > FB_BLANK_NORMAL) set_backlight_enable(0); #elif defined(CONFIG_FB_ATY_GENERIC_LCD) if (par->lcd_table && blank > FB_BLANK_NORMAL && @@ -2703,7 +2704,7 @@ static int atyfb_blank(int blank, struct fb_info *info) aty_st_le32(CRTC_GEN_CNTL, gen_cntl, par); #ifdef CONFIG_PMAC_BACKLIGHT - if ((_machine == _MACH_Pmac) && blank <= FB_BLANK_NORMAL) + if (machine_is(powermac) && blank <= FB_BLANK_NORMAL) set_backlight_enable(1); #elif defined(CONFIG_FB_ATY_GENERIC_LCD) if (par->lcd_table && blank <= FB_BLANK_NORMAL && diff --git a/drivers/video/aty/radeon_pm.c b/drivers/video/aty/radeon_pm.c index 5886a2f1323..c7091761cef 100644 --- a/drivers/video/aty/radeon_pm.c +++ b/drivers/video/aty/radeon_pm.c @@ -20,7 +20,7 @@ #include #ifdef CONFIG_PPC_PMAC -#include +#include #include #include #endif @@ -2745,7 +2745,7 @@ void radeonfb_pm_init(struct radeonfb_info *rinfo, int dynclk) rinfo->pm_mode |= radeon_pm_off; } #if defined(CONFIG_PPC_PMAC) - if (_machine == _MACH_Pmac && rinfo->of_node) { + if (machine_is(powermac) && rinfo->of_node) { if (rinfo->is_mobility && rinfo->pm_reg && rinfo->family <= CHIP_FAMILY_RV250) rinfo->pm_mode |= radeon_pm_d2; diff --git a/drivers/video/cirrusfb.c b/drivers/video/cirrusfb.c index 66d6f2f0a21..1103010af54 100644 --- a/drivers/video/cirrusfb.c +++ b/drivers/video/cirrusfb.c @@ -60,8 +60,8 @@ #include #endif #ifdef CONFIG_PPC_PREP -#include -#define isPReP (_machine == _MACH_prep) +#include +#define isPReP (machine_is(prep)) #else #define isPReP 0 #endif diff --git a/drivers/video/matrox/matroxfb_base.c b/drivers/video/matrox/matroxfb_base.c index 951c9974a1d..23c1827b2d0 100644 --- a/drivers/video/matrox/matroxfb_base.c +++ b/drivers/video/matrox/matroxfb_base.c @@ -115,6 +115,7 @@ #include #ifdef CONFIG_PPC_PMAC +#include unsigned char nvram_read_byte(int); static int default_vmode = VMODE_NVRAM; static int default_cmode = CMODE_NVRAM; @@ -1833,7 +1834,7 @@ static int initMatrox2(WPMINFO struct board* b){ /* FIXME: Where to move this?! */ #if defined(CONFIG_PPC_PMAC) #ifndef MODULE - if (_machine == _MACH_Pmac) { + if (machine_is(powermac)) { struct fb_var_screeninfo var; if (default_vmode <= 0 || default_vmode > VMODE_MAX) default_vmode = VMODE_640_480_60; diff --git a/drivers/video/nvidia/nvidia.c b/drivers/video/nvidia/nvidia.c index a7c4e5e8ead..7258b324531 100644 --- a/drivers/video/nvidia/nvidia.c +++ b/drivers/video/nvidia/nvidia.c @@ -29,6 +29,7 @@ #include #endif #ifdef CONFIG_PMAC_BACKLIGHT +#include #include #endif @@ -1353,7 +1354,7 @@ static int nvidiafb_blank(int blank, struct fb_info *info) NVWriteCrtc(par, 0x1a, vesa); #ifdef CONFIG_PMAC_BACKLIGHT - if (par->FlatPanel && _machine == _MACH_Pmac) { + if (par->FlatPanel && machine_is(powermac)) { set_backlight_enable(!blank); } #endif @@ -1688,7 +1689,7 @@ static int __devinit nvidiafb_probe(struct pci_dev *pd, info->fix.id, par->FbMapSize / (1024 * 1024), info->fix.smem_start); #ifdef CONFIG_PMAC_BACKLIGHT - if (par->FlatPanel && _machine == _MACH_Pmac) + if (par->FlatPanel && machine_is(powermac)) register_backlight_controller(&nvidia_backlight_controller, par, "mnca"); #endif diff --git a/drivers/video/radeonfb.c b/drivers/video/radeonfb.c index db9fb9074db..04820fab964 100644 --- a/drivers/video/radeonfb.c +++ b/drivers/video/radeonfb.c @@ -1596,7 +1596,7 @@ static int radeonfb_blank (int blank, struct fb_info *info) return 0; #ifdef CONFIG_PMAC_BACKLIGHT - if (rinfo->dviDisp_type == MT_LCD && _machine == _MACH_Pmac) { + if (rinfo->dviDisp_type == MT_LCD && machine_is(powermac)) { set_backlight_enable(!blank); return 0; } diff --git a/drivers/video/riva/fbdev.c b/drivers/video/riva/fbdev.c index 6c19ab6afb0..b7bd6bb2c77 100644 --- a/drivers/video/riva/fbdev.c +++ b/drivers/video/riva/fbdev.c @@ -49,6 +49,7 @@ #include #endif #ifdef CONFIG_PMAC_BACKLIGHT +#include #include #endif @@ -1247,7 +1248,7 @@ static int rivafb_blank(int blank, struct fb_info *info) CRTCout(par, 0x1a, vesa); #ifdef CONFIG_PMAC_BACKLIGHT - if ( par->FlatPanel && _machine == _MACH_Pmac) { + if ( par->FlatPanel && machine_is(powermac)) { set_backlight_enable(!blank); } #endif @@ -2037,9 +2038,9 @@ static int __devinit rivafb_probe(struct pci_dev *pd, info->fix.smem_len / (1024 * 1024), info->fix.smem_start); #ifdef CONFIG_PMAC_BACKLIGHT - if (default_par->FlatPanel && _machine == _MACH_Pmac) - register_backlight_controller(&riva_backlight_controller, - default_par, "mnca"); + if (default_par->FlatPanel && machine_is(powermac)) + register_backlight_controller(&riva_backlight_controller, + default_par, "mnca"); #endif NVTRACE_LEAVE(); return 0; diff --git a/fs/partitions/mac.c b/fs/partitions/mac.c index bb22cdd0cb1..813292f2121 100644 --- a/fs/partitions/mac.c +++ b/fs/partitions/mac.c @@ -12,6 +12,7 @@ #include "mac.h" #ifdef CONFIG_PPC_PMAC +#include extern void note_bootable_part(dev_t dev, int part, int goodness); #endif @@ -79,7 +80,7 @@ int mac_partition(struct parsed_partitions *state, struct block_device *bdev) * If this is the first bootable partition, tell the * setup code, in case it wants to make this the root. */ - if (_machine == _MACH_Pmac) { + if (machine_is(powermac)) { int goodness = 0; mac_fix_string(part->processor, 16); diff --git a/include/asm-powerpc/machdep.h b/include/asm-powerpc/machdep.h index 758e47fe8c1..5ed84768075 100644 --- a/include/asm-powerpc/machdep.h +++ b/include/asm-powerpc/machdep.h @@ -47,6 +47,7 @@ struct smp_ops_t { #endif struct machdep_calls { + char *name; #ifdef CONFIG_PPC64 void (*hpte_invalidate)(unsigned long slot, unsigned long va, @@ -85,9 +86,9 @@ struct machdep_calls { void (*iommu_dev_setup)(struct pci_dev *dev); void (*iommu_bus_setup)(struct pci_bus *bus); void (*irq_bus_setup)(struct pci_bus *bus); -#endif +#endif /* CONFIG_PPC64 */ - int (*probe)(int platform); + int (*probe)(void); void (*setup_arch)(void); void (*init_early)(void); /* Optional, may be NULL. */ @@ -207,8 +208,6 @@ struct machdep_calls { /* Called at then very end of pcibios_init() */ void (*pcibios_after_init)(void); - /* this is for modules, since _machine can be a define -- Cort */ - int ppc_machine; #endif /* CONFIG_PPC32 */ /* Called to shutdown machine specific hardware not already controlled @@ -244,7 +243,26 @@ struct machdep_calls { extern void power4_idle(void); extern void ppc6xx_idle(void); +/* + * ppc_md contains a copy of the machine description structure for the + * current platform. machine_id contains the initial address where the + * description was found during boot. + */ extern struct machdep_calls ppc_md; +extern struct machdep_calls *machine_id; + +#define __machine_desc __attribute__ ((__section__ (".machine.desc"))) + +#define define_machine(name) struct machdep_calls mach_##name __machine_desc = +#define machine_is(name) \ + ({ \ + extern struct machdep_calls mach_##name \ + __attribute__((weak)); \ + machine_id == &mach_##name; \ + }) + +extern void probe_machine(void); + extern char cmd_line[COMMAND_LINE_SIZE]; #ifdef CONFIG_PPC_PMAC diff --git a/include/asm-powerpc/pmac_feature.h b/include/asm-powerpc/pmac_feature.h index 3221628130c..d3599cc9aa7 100644 --- a/include/asm-powerpc/pmac_feature.h +++ b/include/asm-powerpc/pmac_feature.h @@ -305,7 +305,7 @@ extern void pmac_feature_init(void); extern void pmac_set_early_video_resume(void (*proc)(void *data), void *data); extern void pmac_call_early_video_resume(void); -#define PMAC_FTR_DEF(x) ((_MACH_Pmac << 16) | (x)) +#define PMAC_FTR_DEF(x) ((0x6660000) | (x)) /* The AGP driver registers itself here */ extern void pmac_register_agp_pm(struct pci_dev *bridge, diff --git a/include/asm-powerpc/processor.h b/include/asm-powerpc/processor.h index 57643b5b782..93f83efeb31 100644 --- a/include/asm-powerpc/processor.h +++ b/include/asm-powerpc/processor.h @@ -22,22 +22,6 @@ * -- BenH. */ -/* Platforms codes (to be obsoleted) */ -#define PLATFORM_PSERIES 0x0100 -#define PLATFORM_PSERIES_LPAR 0x0101 -#define PLATFORM_ISERIES_LPAR 0x0201 -#define PLATFORM_LPAR 0x0001 -#define PLATFORM_POWERMAC 0x0400 -#define PLATFORM_MAPLE 0x0500 -#define PLATFORM_PREP 0x0600 -#define PLATFORM_CHRP 0x0700 -#define PLATFORM_CELL 0x1000 - -/* Compat platform codes for 32 bits */ -#define _MACH_prep PLATFORM_PREP -#define _MACH_Pmac PLATFORM_POWERMAC -#define _MACH_chrp PLATFORM_CHRP - /* PREP sub-platform types see residual.h for these */ #define _PREP_Motorola 0x01 /* motorola prep */ #define _PREP_Firm 0x02 /* firmworks prep */ @@ -49,15 +33,14 @@ #define _CHRP_IBM 0x05 /* IBM chrp, the longtrail and longtrail 2 */ #define _CHRP_Pegasos 0x06 /* Genesi/bplan's Pegasos and Pegasos2 */ -#ifdef __KERNEL__ -#define platform_is_pseries() (_machine == PLATFORM_PSERIES || \ - _machine == PLATFORM_PSERIES_LPAR) +#if defined(__KERNEL__) && defined(CONFIG_PPC32) + +extern int _chrp_type; #ifdef CONFIG_PPC_PREP /* what kind of prep workstation we are */ extern int _prep_type; -extern int _chrp_type; /* * This is used to identify the board type from a given PReP board @@ -69,18 +52,12 @@ extern unsigned char ucBoardRevMaj, ucBoardRevMin; #endif /* CONFIG_PPC_PREP */ -#if defined(CONFIG_PPC_MULTIPLATFORM) -extern int _machine; - -#elif defined(CONFIG_PPC_ISERIES) -/* - * iSeries is soon to become MULTIPLATFORM hopefully ... - */ -#define _machine PLATFORM_ISERIES_LPAR -#else +#ifndef CONFIG_PPC_MULTIPLATFORM #define _machine 0 #endif /* CONFIG_PPC_MULTIPLATFORM */ -#endif /* __KERNEL__ */ + +#endif /* defined(__KERNEL__) && defined(CONFIG_PPC32) */ + /* * Default implementation of macro that returns current * instruction pointer ("program counter"). diff --git a/include/asm-powerpc/prom.h b/include/asm-powerpc/prom.h index 782e13a070a..97ef1cd71a4 100644 --- a/include/asm-powerpc/prom.h +++ b/include/asm-powerpc/prom.h @@ -149,12 +149,14 @@ extern struct device_node *of_node_get(struct device_node *node); extern void of_node_put(struct device_node *node); /* For scanning the flat device-tree at boot time */ -int __init of_scan_flat_dt(int (*it)(unsigned long node, - const char *uname, int depth, - void *data), - void *data); -void* __init of_get_flat_dt_prop(unsigned long node, const char *name, - unsigned long *size); +extern int __init of_scan_flat_dt(int (*it)(unsigned long node, + const char *uname, int depth, + void *data), + void *data); +extern void* __init of_get_flat_dt_prop(unsigned long node, const char *name, + unsigned long *size); +extern int __init of_flat_dt_is_compatible(unsigned long node, const char *name); +extern unsigned long __init of_get_flat_dt_root(void); /* For updating the device tree at runtime */ extern void of_attach_node(struct device_node *); diff --git a/include/asm-powerpc/vdso_datapage.h b/include/asm-powerpc/vdso_datapage.h index 7aa92086c3f..8a94f0eba5e 100644 --- a/include/asm-powerpc/vdso_datapage.h +++ b/include/asm-powerpc/vdso_datapage.h @@ -55,6 +55,9 @@ struct vdso_data { __u32 minor; /* Minor number 0x14 */ } version; + /* Note about the platform flags: it now only contains the lpar + * bit. The actual platform number is dead and burried + */ __u32 platform; /* Platform flags 0x18 */ __u32 processor; /* Processor type 0x1C */ __u64 processorCount; /* # of physical processors 0x20 */ diff --git a/include/asm-ppc/machdep.h b/include/asm-ppc/machdep.h index 2723b423f67..e1a0a7b213d 100644 --- a/include/asm-ppc/machdep.h +++ b/include/asm-ppc/machdep.h @@ -19,6 +19,18 @@ struct pci_dev; struct seq_file; struct file; +/* + * This is for compatibility with ARCH=powerpc. + */ +#define machine_is(x) __MACHINE_IS_##x +#define __MACHINE_IS_powermac 0 +#define __MACHINE_IS_chrp 0 +#ifdef CONFIG_PPC_PREP +#define __MACHINE_IS_prep 1 +#else +#define __MACHINE_IS_prep 0 +#endif + /* We export this macro for external modules like Alsa to know if * ppc_md.feature_call is implemented or not */ diff --git a/sound/oss/dmasound/dmasound_awacs.c b/sound/oss/dmasound/dmasound_awacs.c index 6ba8d6f45fe..a8636adef2e 100644 --- a/sound/oss/dmasound/dmasound_awacs.c +++ b/sound/oss/dmasound/dmasound_awacs.c @@ -2814,7 +2814,7 @@ int __init dmasound_awacs_init(void) struct device_node *io = NULL, *info = NULL; int vol, res; - if (_machine != _MACH_Pmac) + if (!machine_is(powermac)) return -ENODEV; awacs_subframe = 0; diff --git a/sound/ppc/pmac.c b/sound/ppc/pmac.c index aa57170101f..f0794ef9d1a 100644 --- a/sound/ppc/pmac.c +++ b/sound/ppc/pmac.c @@ -869,7 +869,7 @@ static int __init snd_pmac_detect(struct snd_pmac *chip) u32 layout_id = 0; - if (_machine != _MACH_Pmac) + if (!machine_is(powermac)) return -ENODEV; chip->subframe = 0; -- cgit v1.2.3-70-g09d2 From 0e5519548fdc8eadc3eacb49b1908d44d347fb2b Mon Sep 17 00:00:00 2001 From: KAMEZAWA Hiroyuki Date: Tue, 28 Mar 2006 14:50:51 -0800 Subject: [PATCH] for_each_possible_cpu: powerpc for_each_cpu() actually iterates across all possible CPUs. We've had mistakes in the past where people were using for_each_cpu() where they should have been iterating across only online or present CPUs. This is inefficient and possibly buggy. We're renaming for_each_cpu() to for_each_possible_cpu() to avoid this in the future. This patch replaces for_each_cpu with for_each_possible_cpu. Signed-off-by: KAMEZAWA Hiroyuki Signed-off-by: Andrew Morton Signed-off-by: Paul Mackerras --- arch/powerpc/kernel/irq.c | 2 +- arch/powerpc/kernel/lparcfg.c | 4 ++-- arch/powerpc/kernel/rtas.c | 4 ++-- arch/powerpc/kernel/setup-common.c | 2 +- arch/powerpc/kernel/setup_32.c | 2 +- arch/powerpc/kernel/setup_64.c | 6 +++--- arch/powerpc/kernel/smp.c | 2 +- arch/powerpc/kernel/sysfs.c | 6 +++--- arch/powerpc/kernel/time.c | 4 ++-- arch/powerpc/mm/stab.c | 2 +- arch/powerpc/platforms/cell/interrupt.c | 2 +- arch/powerpc/platforms/cell/pervasive.c | 2 +- arch/powerpc/platforms/pseries/xics.c | 2 +- include/asm-powerpc/percpu.h | 2 +- 14 files changed, 21 insertions(+), 21 deletions(-) (limited to 'arch/powerpc/kernel/setup-common.c') diff --git a/arch/powerpc/kernel/irq.c b/arch/powerpc/kernel/irq.c index 771a59cbd21..bb5c9501234 100644 --- a/arch/powerpc/kernel/irq.c +++ b/arch/powerpc/kernel/irq.c @@ -379,7 +379,7 @@ void irq_ctx_init(void) struct thread_info *tp; int i; - for_each_cpu(i) { + for_each_possible_cpu(i) { memset((void *)softirq_ctx[i], 0, THREAD_SIZE); tp = softirq_ctx[i]; tp->cpu = i; diff --git a/arch/powerpc/kernel/lparcfg.c b/arch/powerpc/kernel/lparcfg.c index e789fef4eb8..1b73508ecb2 100644 --- a/arch/powerpc/kernel/lparcfg.c +++ b/arch/powerpc/kernel/lparcfg.c @@ -56,7 +56,7 @@ static unsigned long get_purr(void) unsigned long sum_purr = 0; int cpu; - for_each_cpu(cpu) { + for_each_possible_cpu(cpu) { sum_purr += lppaca[cpu].emulated_time_base; #ifdef PURR_DEBUG @@ -222,7 +222,7 @@ static unsigned long get_purr(void) int cpu; struct cpu_usage *cu; - for_each_cpu(cpu) { + for_each_possible_cpu(cpu) { cu = &per_cpu(cpu_usage_array, cpu); sum_purr += cu->current_tb; } diff --git a/arch/powerpc/kernel/rtas.c b/arch/powerpc/kernel/rtas.c index 4b78ee0e586..06636c927a7 100644 --- a/arch/powerpc/kernel/rtas.c +++ b/arch/powerpc/kernel/rtas.c @@ -593,7 +593,7 @@ static void rtas_percpu_suspend_me(void *info) data->waiting = 0; data->args->args[data->args->nargs] = rtas_call(ibm_suspend_me_token, 0, 1, NULL); - for_each_cpu(i) + for_each_possible_cpu(i) plpar_hcall_norets(H_PROD,i); } else { data->waiting = -EBUSY; @@ -626,7 +626,7 @@ static int rtas_ibm_suspend_me(struct rtas_args *args) /* Prod each CPU. This won't hurt, and will wake * anyone we successfully put to sleep with H_Join */ - for_each_cpu(i) + for_each_possible_cpu(i) plpar_hcall_norets(H_PROD, i); return data.waiting; diff --git a/arch/powerpc/kernel/setup-common.c b/arch/powerpc/kernel/setup-common.c index 3473cb9cb0a..c607f3b9ca1 100644 --- a/arch/powerpc/kernel/setup-common.c +++ b/arch/powerpc/kernel/setup-common.c @@ -431,7 +431,7 @@ void __init smp_setup_cpu_maps(void) /* * Do the sibling map; assume only two threads per processor. */ - for_each_cpu(cpu) { + for_each_possible_cpu(cpu) { cpu_set(cpu, cpu_sibling_map[cpu]); if (cpu_has_feature(CPU_FTR_SMT)) cpu_set(cpu ^ 0x1, cpu_sibling_map[cpu]); diff --git a/arch/powerpc/kernel/setup_32.c b/arch/powerpc/kernel/setup_32.c index ae9c33d7073..a72bf5dceee 100644 --- a/arch/powerpc/kernel/setup_32.c +++ b/arch/powerpc/kernel/setup_32.c @@ -226,7 +226,7 @@ int __init ppc_init(void) if ( ppc_md.progress ) ppc_md.progress(" ", 0xffff); /* register CPU devices */ - for_each_cpu(i) + for_each_possible_cpu(i) register_cpu(&cpu_devices[i], i, NULL); /* call platform init */ diff --git a/arch/powerpc/kernel/setup_64.c b/arch/powerpc/kernel/setup_64.c index 05b15229939..59aa92cd6fa 100644 --- a/arch/powerpc/kernel/setup_64.c +++ b/arch/powerpc/kernel/setup_64.c @@ -474,7 +474,7 @@ static void __init irqstack_early_init(void) * interrupt stacks must be under 256MB, we cannot afford to take * SLB misses on them. */ - for_each_cpu(i) { + for_each_possible_cpu(i) { softirq_ctx[i] = (struct thread_info *) __va(lmb_alloc_base(THREAD_SIZE, THREAD_SIZE, 0x10000000)); @@ -507,7 +507,7 @@ static void __init emergency_stack_init(void) */ limit = min(0x10000000UL, lmb.rmo_size); - for_each_cpu(i) + for_each_possible_cpu(i) paca[i].emergency_sp = __va(lmb_alloc_base(HW_PAGE_SIZE, 128, limit)) + HW_PAGE_SIZE; } @@ -624,7 +624,7 @@ void __init setup_per_cpu_areas(void) size = PERCPU_ENOUGH_ROOM; #endif - for_each_cpu(i) { + for_each_possible_cpu(i) { ptr = alloc_bootmem_node(NODE_DATA(cpu_to_node(i)), size); if (!ptr) panic("Cannot allocate cpu data for CPU %d\n", i); diff --git a/arch/powerpc/kernel/smp.c b/arch/powerpc/kernel/smp.c index 805eaedbc30..530f7dba0bd 100644 --- a/arch/powerpc/kernel/smp.c +++ b/arch/powerpc/kernel/smp.c @@ -362,7 +362,7 @@ void __init smp_prepare_cpus(unsigned int max_cpus) smp_space_timers(max_cpus); - for_each_cpu(cpu) + for_each_possible_cpu(cpu) if (cpu != boot_cpuid) smp_create_idle(cpu); } diff --git a/arch/powerpc/kernel/sysfs.c b/arch/powerpc/kernel/sysfs.c index aca2f09cd84..73560ef6f80 100644 --- a/arch/powerpc/kernel/sysfs.c +++ b/arch/powerpc/kernel/sysfs.c @@ -74,7 +74,7 @@ static int __init smt_setup(void) val = (unsigned int *)get_property(options, "ibm,smt-snooze-delay", NULL); if (!smt_snooze_cmdline && val) { - for_each_cpu(cpu) + for_each_possible_cpu(cpu) per_cpu(smt_snooze_delay, cpu) = *val; } @@ -93,7 +93,7 @@ static int __init setup_smt_snooze_delay(char *str) smt_snooze_cmdline = 1; if (get_option(&str, &snooze)) { - for_each_cpu(cpu) + for_each_possible_cpu(cpu) per_cpu(smt_snooze_delay, cpu) = snooze; } @@ -347,7 +347,7 @@ static int __init topology_init(void) register_cpu_notifier(&sysfs_cpu_nb); - for_each_cpu(cpu) { + for_each_possible_cpu(cpu) { struct cpu *c = &per_cpu(cpu_devices, cpu); #ifdef CONFIG_NUMA diff --git a/arch/powerpc/kernel/time.c b/arch/powerpc/kernel/time.c index 4a27218a086..24e3ad756de 100644 --- a/arch/powerpc/kernel/time.c +++ b/arch/powerpc/kernel/time.c @@ -261,7 +261,7 @@ void snapshot_timebases(void) if (!cpu_has_feature(CPU_FTR_PURR)) return; - for_each_cpu(cpu) + for_each_possible_cpu(cpu) spin_lock_init(&per_cpu(cpu_purr_data, cpu).lock); on_each_cpu(snapshot_tb_and_purr, NULL, 0, 1); } @@ -751,7 +751,7 @@ void __init smp_space_timers(unsigned int max_cpus) * systems works better if the two threads' timebase interrupts * are staggered by half a jiffy with respect to each other. */ - for_each_cpu(i) { + for_each_possible_cpu(i) { if (i == boot_cpuid) continue; if (i == (boot_cpuid ^ 1)) diff --git a/arch/powerpc/mm/stab.c b/arch/powerpc/mm/stab.c index 91d25fb27f8..4a9291d9fef 100644 --- a/arch/powerpc/mm/stab.c +++ b/arch/powerpc/mm/stab.c @@ -239,7 +239,7 @@ void stabs_alloc(void) if (cpu_has_feature(CPU_FTR_SLB)) return; - for_each_cpu(cpu) { + for_each_possible_cpu(cpu) { unsigned long newstab; if (cpu == 0) diff --git a/arch/powerpc/platforms/cell/interrupt.c b/arch/powerpc/platforms/cell/interrupt.c index ae62f5d5c31..978be1c30c1 100644 --- a/arch/powerpc/platforms/cell/interrupt.c +++ b/arch/powerpc/platforms/cell/interrupt.c @@ -364,7 +364,7 @@ void iic_init_IRQ(void) setup_iic_hardcoded(); irq_offset = 0; - for_each_cpu(cpu) { + for_each_possible_cpu(cpu) { iic = &per_cpu(iic, cpu); if (iic->regs) out_be64(&iic->regs->prio, 0xff); diff --git a/arch/powerpc/platforms/cell/pervasive.c b/arch/powerpc/platforms/cell/pervasive.c index 58baeb52f6f..7eed8c62451 100644 --- a/arch/powerpc/platforms/cell/pervasive.c +++ b/arch/powerpc/platforms/cell/pervasive.c @@ -217,7 +217,7 @@ void __init cell_pervasive_init(void) if (!cpu_has_feature(CPU_FTR_PAUSE_ZERO)) return; - for_each_cpu(cpu) { + for_each_possible_cpu(cpu) { p = &cbe_pervasive[cpu]; ret = cbe_find_pmd_mmio(cpu, p); if (ret) diff --git a/arch/powerpc/platforms/pseries/xics.c b/arch/powerpc/platforms/pseries/xics.c index c60d3ff25a2..4864cb32be2 100644 --- a/arch/powerpc/platforms/pseries/xics.c +++ b/arch/powerpc/platforms/pseries/xics.c @@ -541,7 +541,7 @@ nextnode: ops = &pSeriesLP_ops; else { #ifdef CONFIG_SMP - for_each_cpu(i) { + for_each_possible_cpu(i) { int hard_id; /* FIXME: Do this dynamically! --RR */ diff --git a/include/asm-powerpc/percpu.h b/include/asm-powerpc/percpu.h index 464301cd0d0..184a7a4d2fd 100644 --- a/include/asm-powerpc/percpu.h +++ b/include/asm-powerpc/percpu.h @@ -27,7 +27,7 @@ #define percpu_modcopy(pcpudst, src, size) \ do { \ unsigned int __i; \ - for_each_cpu(__i) \ + for_each_possible_cpu(__i) \ memcpy((pcpudst)+__per_cpu_offset(__i), \ (src), (size)); \ } while (0) -- cgit v1.2.3-70-g09d2