RS/6000 machine, an Apple machine, or a PReP, CHRP,
Maple or Cell-based machine.
-config PPC_ISERIES
- bool "IBM Legacy iSeries"
- depends on PPC64
-
config EMBEDDED6xx
bool "Embedded 6xx/7xx/7xxx-based board"
depends on PPC32 && (BROKEN||BROKEN_ON_SMP)
select PPC_UDBG_16550
default y
+config PPC_ISERIES
+ bool "IBM Legacy iSeries"
+ depends on PPC_MULTIPLATFORM && PPC64
+
config PPC_CHRP
bool "Common Hardware Reference Platform (CHRP) based machines"
depends on PPC_MULTIPLATFORM && PPC32
#include <asm/ppc_asm.h>
#include <asm/asm-offsets.h>
#include <asm/cputable.h>
-
-#ifdef CONFIG_PPC_ISERIES
-#define DO_SOFT_DISABLE
-#endif
+#include <asm/firmware.h>
/*
* System calls.
ld r11,exception_marker@toc(r2)
std r11,-16(r9) /* "regshere" marker */
#ifdef CONFIG_PPC_ISERIES
+BEGIN_FW_FTR_SECTION
/* Hack for handling interrupts when soft-enabling on iSeries */
cmpdi cr1,r0,0x5555 /* syscall 0x5555 */
andi. r10,r12,MSR_PR /* from kernel */
beq hardware_interrupt_entry
lbz r10,PACAPROCENABLED(r13)
std r10,SOFTE(r1)
+END_FW_FTR_SECTION_IFSET(FW_FEATURE_ISERIES)
#endif
mfmsr r11
ori r11,r11,MSR_EE
restore:
#ifdef CONFIG_PPC_ISERIES
+BEGIN_FW_FTR_SECTION
ld r5,SOFTE(r1)
cmpdi 0,r5,0
beq 4f
b .ret_from_except_lite /* loop back and handle more */
4: stb r5,PACAPROCENABLED(r13)
+END_FW_FTR_SECTION_IFSET(FW_FEATURE_ISERIES)
#endif
ld r3,_MSR(r1)
lwz r8,TI_PREEMPT(r9)
cmpwi cr1,r8,0
#ifdef CONFIG_PPC_ISERIES
+BEGIN_FW_FTR_SECTION
ld r0,SOFTE(r1)
cmpdi r0,0
-#else
- andi. r0,r3,MSR_EE
+END_FW_FTR_SECTION_IFSET(FW_FEATURE_ISERIES)
#endif
+BEGIN_FW_FTR_SECTION
+ andi. r0,r3,MSR_EE
+END_FW_FTR_SECTION_IFCLR(FW_FEATURE_ISERIES)
crandc eq,cr1*4+eq,eq
bne restore
/* here we are preempting the current task */
1:
#ifdef CONFIG_PPC_ISERIES
+BEGIN_FW_FTR_SECTION
li r0,1
stb r0,PACAPROCENABLED(r13)
+END_FW_FTR_SECTION_IFSET(FW_FEATURE_ISERIES)
#endif
ori r10,r10,MSR_EE
mtmsrd r10,1 /* reenable interrupts */
#include <asm/hvcall.h>
#include <asm/iseries/lpar_map.h>
#include <asm/thread_info.h>
+#include <asm/firmware.h>
#ifdef CONFIG_PPC_ISERIES
#define DO_SOFT_DISABLE
#ifdef DO_SOFT_DISABLE
#define DISABLE_INTS \
+BEGIN_FW_FTR_SECTION; \
lbz r10,PACAPROCENABLED(r13); \
li r11,0; \
std r10,SOFTE(r1); \
mfmsr r10; \
stb r11,PACAPROCENABLED(r13); \
ori r10,r10,MSR_EE; \
- mtmsrd r10,1
+ mtmsrd r10,1; \
+END_FW_FTR_SECTION_IFSET(FW_FEATURE_ISERIES)
#define ENABLE_INTS \
+BEGIN_FW_FTR_SECTION; \
lbz r10,PACAPROCENABLED(r13); \
mfmsr r11; \
std r10,SOFTE(r1); \
ori r11,r11,MSR_EE; \
+END_FW_FTR_SECTION_IFSET(FW_FEATURE_ISERIES); \
+BEGIN_FW_FTR_SECTION; \
+ ld r12,_MSR(r1); \
+ mfmsr r11; \
+ rlwimi r11,r12,0,MSR_EE; \
+END_FW_FTR_SECTION_IFCLR(FW_FEATURE_ISERIES); \
mtmsrd r11,1
#else /* hard enable/disable interrupts */
ld r3,PACA_EXSLB+EX_R3(r13)
lwz r9,PACA_EXSLB+EX_CCR(r13) /* get saved CR */
#ifdef CONFIG_PPC_ISERIES
+BEGIN_FW_FTR_SECTION
ld r11,PACALPPACAPTR(r13)
ld r11,LPPACASRR0(r11) /* get SRR0 value */
+END_FW_FTR_SECTION_IFSET(FW_FEATURE_ISERIES)
#endif /* CONFIG_PPC_ISERIES */
mtlr r10
.machine pop
#ifdef CONFIG_PPC_ISERIES
+BEGIN_FW_FTR_SECTION
mtspr SPRN_SRR0,r11
mtspr SPRN_SRR1,r12
+END_FW_FTR_SECTION_IFSET(FW_FEATURE_ISERIES)
#endif /* CONFIG_PPC_ISERIES */
ld r9,PACA_EXSLB+EX_R9(r13)
ld r10,PACA_EXSLB+EX_R10(r13)
cmpdi r3,0 /* see if hash_page succeeded */
#ifdef DO_SOFT_DISABLE
+BEGIN_FW_FTR_SECTION
/*
* If we had interrupts soft-enabled at the point where the
* DSI/ISI occurred, and an interrupt came in during hash_page,
ld r3,SOFTE(r1)
bl .local_irq_restore
b 11f
-#else
+END_FW_FTR_SECTION_IFSET(FW_FEATURE_ISERIES)
+#endif
+BEGIN_FW_FTR_SECTION
beq fast_exception_return /* Return from exception on success */
ble- 12f /* Failure return from hash_page */
/* fall through */
-#endif
+END_FW_FTR_SECTION_IFCLR(FW_FEATURE_ISERIES)
/* Here we have a page fault that hash_page can't handle. */
_GLOBAL(handle_page_fault)
LOAD_REG_ADDR(r3, .start_secondary_prolog)
LOAD_REG_IMMEDIATE(r4, MSR_KERNEL)
#ifdef DO_SOFT_DISABLE
+BEGIN_FW_FTR_SECTION
ori r4,r4,MSR_EE
+END_FW_FTR_SECTION_IFSET(FW_FEATURE_ISERIES)
#endif
mtspr SPRN_SRR0,r3
mtspr SPRN_SRR1,r4
*/
li r3,0
bl .do_cpu_ftr_fixups
+ bl .do_fw_ftr_fixups
/* ptr to current */
LOAD_REG_IMMEDIATE(r4, init_task)
/* Load up the kernel context */
5:
#ifdef DO_SOFT_DISABLE
+BEGIN_FW_FTR_SECTION
li r5,0
stb r5,PACAPROCENABLED(r13) /* Soft Disabled */
mfmsr r5
ori r5,r5,MSR_EE /* Hard Enabled */
mtmsrd r5
+END_FW_FTR_SECTION_IFSET(FW_FEATURE_ISERIES)
#endif
bl .start_kernel
isync
b 1b
+/*
+ * do_fw_ftr_fixups - goes through the list of firmware feature fixups
+ * and writes nop's over sections of code that don't apply for this firmware.
+ * r3 = data offset (not changed)
+ */
+_GLOBAL(do_fw_ftr_fixups)
+ /* Get firmware features */
+ LOAD_REG_IMMEDIATE(r6,powerpc_firmware_features)
+ sub r6,r6,r3
+ ld r4,0(r6)
+ /* Get the fixup table */
+ LOAD_REG_IMMEDIATE(r6,__start___fw_ftr_fixup)
+ sub r6,r6,r3
+ LOAD_REG_IMMEDIATE(r7,__stop___fw_ftr_fixup)
+ sub r7,r7,r3
+ /* Do the fixup */
+1: cmpld r6,r7
+ bgelr
+ addi r6,r6,32
+ ld r8,-32(r6) /* mask */
+ and r8,r8,r4
+ ld r9,-24(r6) /* value */
+ cmpld r8,r9
+ beq 1b
+ ld r8,-16(r6) /* section begin */
+ ld r9,-8(r6) /* section end */
+ subf. r9,r8,r9
+ beq 1b
+ /* write nops over the section of code */
+ /* todo: if large section, add a branch at the start of it */
+ srwi r9,r9,2
+ mtctr r9
+ sub r8,r8,r3
+ lis r0,0x60000000@h /* nop */
+3: stw r0,0(r8)
+BEGIN_FTR_SECTION
+ dcbst 0,r8 /* suboptimal, but simpler */
+ sync
+ icbi 0,r8
+END_FTR_SECTION_IFSET(CPU_FTR_SPLIT_ID_CACHE)
+ addi r8,r8,4
+ bdnz 3b
+ sync /* additional sync needed on g4 */
+ isync
+ b 1b
+
#if defined(CONFIG_PPC_PMAC) || defined(CONFIG_PPC_MAPLE)
/*
* Do an IO access in real mode
#include <asm/byteorder.h>
#include <asm/machdep.h>
#include <asm/ppc-pci.h>
+#include <asm/firmware.h>
#ifdef DEBUG
#include <asm/udbg.h>
kfree(phb);
}
-#ifndef CONFIG_PPC_ISERIES
void __devinit pcibios_claim_one_bus(struct pci_bus *b)
{
struct pci_dev *dev;
{
struct pci_bus *b;
+ if (firmware_has_feature(FW_FEATURE_ISERIES))
+ return;
+
list_for_each_entry(b, &pci_root_buses, node)
pcibios_claim_one_bus(b);
}
-#endif
#ifdef CONFIG_PPC_MULTIPLATFORM
static u32 get_int_prop(struct device_node *np, const char *name, u32 def)
*/
ppc_md.phys_mem_access_prot = pci_phys_mem_access_prot;
-#ifdef CONFIG_PPC_ISERIES
- iSeries_pcibios_init();
-#endif
+ if (firmware_has_feature(FW_FEATURE_ISERIES))
+ iSeries_pcibios_init();
printk(KERN_DEBUG "PCI: Probing PCI hardware\n");
pci_bus_add_devices(hose->bus);
}
-#ifndef CONFIG_PPC_ISERIES
- if (pci_probe_only)
- pcibios_claim_of_setup();
- else
- /* FIXME: `else' will be removed when
- pci_assign_unassigned_resources() is able to work
- correctly with [partially] allocated PCI tree. */
- pci_assign_unassigned_resources();
-#endif /* !CONFIG_PPC_ISERIES */
+ if (!firmware_has_feature(FW_FEATURE_ISERIES)) {
+ if (pci_probe_only)
+ pcibios_claim_of_setup();
+ else
+ /* FIXME: `else' will be removed when
+ pci_assign_unassigned_resources() is able to work
+ correctly with [partially] allocated PCI tree. */
+ pci_assign_unassigned_resources();
+ }
/* Call machine dependent final fixup */
if (ppc_md.pcibios_fixup)
printk(KERN_DEBUG "ISA bridge at %s\n", pci_name(ppc64_isabridge_dev));
#ifdef CONFIG_PPC_MULTIPLATFORM
- /* map in PCI I/O space */
- phbs_remap_io();
+ if (!firmware_has_feature(FW_FEATURE_ISERIES))
+ /* map in PCI I/O space */
+ phbs_remap_io();
#endif
printk(KERN_DEBUG "PCI: Probing PCI hardware done\n");
*/
int pci_domain_nr(struct pci_bus *bus)
{
-#ifdef CONFIG_PPC_ISERIES
- return 0;
-#else
- struct pci_controller *hose = pci_bus_to_host(bus);
+ if (firmware_has_feature(FW_FEATURE_ISERIES))
+ return 0;
+ else {
+ struct pci_controller *hose = pci_bus_to_host(bus);
- return hose->global_number;
-#endif
+ return hose->global_number;
+ }
}
EXPORT_SYMBOL(pci_domain_nr);
/* Decide whether to display the domain number in /proc */
int pci_proc_domain(struct pci_bus *bus)
{
-#ifdef CONFIG_PPC_ISERIES
- return 0;
-#else
- struct pci_controller *hose = pci_bus_to_host(bus);
- return hose->buid;
-#endif
+ if (firmware_has_feature(FW_FEATURE_ISERIES))
+ return 0;
+ else {
+ struct pci_controller *hose = pci_bus_to_host(bus);
+ return hose->buid;
+ }
}
/*
*(__ftr_fixup)
__stop___ftr_fixup = .;
}
+#ifdef CONFIG_PPC64
+ . = ALIGN(8);
+ __fw_ftr_fixup : {
+ __start___fw_ftr_fixup = .;
+ *(__fw_ftr_fixup)
+ __stop___fw_ftr_fixup = .;
+ }
+#endif
. = ALIGN(PAGE_SIZE);
.init.ramfs : {
#include <asm/iommu.h>
#include <asm/abs_addr.h>
#include <asm/vdso.h>
+#include <asm/firmware.h>
#include "mmu_decl.h"
unsigned long ioremap_bot = IMALLOC_BASE;
static unsigned long phbs_io_bot = PHBS_IO_BASE;
-#ifdef CONFIG_PPC_ISERIES
-
-void __iomem *ioremap(unsigned long addr, unsigned long size)
-{
- return (void __iomem *)addr;
-}
-
-extern void __iomem *__ioremap(unsigned long addr, unsigned long size,
- unsigned long flags)
-{
- return (void __iomem *)addr;
-}
-
-void iounmap(volatile void __iomem *addr)
-{
- return;
-}
-
-#else
-
/*
* map_io_page currently only called by __ioremap
* map_io_page adds an entry to the ioremap page table
unsigned long pa, ea;
void __iomem *ret;
+ if (firmware_has_feature(FW_FEATURE_ISERIES))
+ return (void __iomem *)addr;
+
/*
* Choose an address to map it to.
* Once the imalloc system is running, we use it.
{
void *addr;
+ if (firmware_has_feature(FW_FEATURE_ISERIES))
+ return;
+
if (!mem_init_done)
return;
return 0;
}
-#endif
-
EXPORT_SYMBOL(ioremap);
EXPORT_SYMBOL(__ioremap);
EXPORT_SYMBOL(iounmap);
#include <asm/page.h>
#include <asm/mmu.h>
#include <asm/pgtable.h>
+#include <asm/firmware.h>
/* void slb_allocate_realmode(unsigned long ea);
*
* dont have any LRU information to help us choose a slot.
*/
#ifdef CONFIG_PPC_ISERIES
+BEGIN_FW_FTR_SECTION
/*
* On iSeries, the "bolted" stack segment can be cast out on
* shared processor switch so we need to check for a miss on
li r10,SLB_NUM_BOLTED-1 /* Stack goes in last bolted slot */
cmpld r9,r3
beq 3f
+END_FW_FTR_SECTION_IFSET(FW_FEATURE_ISERIES)
#endif /* CONFIG_PPC_ISERIES */
ld r10,PACASTABRR(r13)
mf_display_src(0xC9000200);
}
-void pcibios_fixup_bus(struct pci_bus *PciBus)
-{
-}
-
-void pcibios_fixup_resources(struct pci_dev *pdev)
-{
-}
-
/*
* Look down the chain to find the matching Device Device
*/
void __init iSeries_init_IRQ(void) { }
#endif
+/*
+ * iSeries has no legacy IO, anything calling this function has to
+ * fail or bad things will happen
+ */
+static int iseries_check_legacy_ioport(unsigned int baseport)
+{
+ return -ENODEV;
+}
+
static int __init iseries_probe(void)
{
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;
- powerpc_firmware_features |= FW_FEATURE_LPAR;
-
hpte_init_iSeries();
return 1;
.calibrate_decr = generic_calibrate_decr,
.progress = iSeries_progress,
.probe = iseries_probe,
+ .check_legacy_ioport = iseries_check_legacy_ioport,
/* XXX Implement enable_pmcs for iSeries */
};
{
unsigned long phys_mem_size;
+ powerpc_firmware_features |= FW_FEATURE_ISERIES;
+ powerpc_firmware_features |= FW_FEATURE_LPAR;
+
iSeries_fixup_klimit();
/*
#include <asm/hvconsole.h>
#include <asm/vio.h>
#include <asm/prom.h>
+#include <asm/firmware.h>
#include <asm/iseries/vio.h>
#include <asm/iseries/hv_call.h>
#include <asm/iseries/hv_lp_config.h>
atomic_t wait_flag;
int rc;
+ if (!firmware_has_feature(FW_FEATURE_ISERIES))
+ return -EIO;
+
/* +2 for fudge */
rc = viopath_open(HvLpConfig_getPrimaryLpIndex(),
viomajorsubtype_chario, VIOCHAR_WINDOW + 2);
for (vty = of_find_node_by_name(NULL, "vty"); vty != NULL;
vty = of_find_node_by_name(vty, "vty")) {
- uint32_t *vtermno;
+ const uint32_t *vtermno;
/* We have statically defined space for only a certain number
* of console adapters.
(num_found >= VTTY_PORTS))
break;
- vtermno = (uint32_t *)get_property(vty, "reg", NULL);
+ vtermno = get_property(vty, "reg", NULL);
if (!vtermno)
continue;
#include <asm/hvconsole.h>
#include <asm/vio.h>
#include <asm/prom.h>
+#include <asm/firmware.h>
#include "hvc_console.h"
{
int rc;
+ if (firmware_has_feature(FW_FEATURE_ISERIES))
+ return -EIO;
+
/* Register as a vio device to receive callbacks */
rc = vio_register_driver(&hvc_vio_driver);
#ifdef __KERNEL__
-#ifndef __ASSEMBLY__
+#include <asm/asm-compat.h>
/* firmware feature bitmask values */
#define FIRMWARE_MAX_FEATURES 63
-#define FW_FEATURE_PFT (1UL<<0)
-#define FW_FEATURE_TCE (1UL<<1)
-#define FW_FEATURE_SPRG0 (1UL<<2)
-#define FW_FEATURE_DABR (1UL<<3)
-#define FW_FEATURE_COPY (1UL<<4)
-#define FW_FEATURE_ASR (1UL<<5)
-#define FW_FEATURE_DEBUG (1UL<<6)
-#define FW_FEATURE_TERM (1UL<<7)
-#define FW_FEATURE_PERF (1UL<<8)
-#define FW_FEATURE_DUMP (1UL<<9)
-#define FW_FEATURE_INTERRUPT (1UL<<10)
-#define FW_FEATURE_MIGRATE (1UL<<11)
-#define FW_FEATURE_PERFMON (1UL<<12)
-#define FW_FEATURE_CRQ (1UL<<13)
-#define FW_FEATURE_VIO (1UL<<14)
-#define FW_FEATURE_RDMA (1UL<<15)
-#define FW_FEATURE_LLAN (1UL<<16)
-#define FW_FEATURE_BULK (1UL<<17)
-#define FW_FEATURE_XDABR (1UL<<18)
-#define FW_FEATURE_MULTITCE (1UL<<19)
-#define FW_FEATURE_SPLPAR (1UL<<20)
-#define FW_FEATURE_ISERIES (1UL<<21)
-#define FW_FEATURE_LPAR (1UL<<22)
+#define FW_FEATURE_PFT ASM_CONST(0x0000000000000001)
+#define FW_FEATURE_TCE ASM_CONST(0x0000000000000002)
+#define FW_FEATURE_SPRG0 ASM_CONST(0x0000000000000004)
+#define FW_FEATURE_DABR ASM_CONST(0x0000000000000008)
+#define FW_FEATURE_COPY ASM_CONST(0x0000000000000010)
+#define FW_FEATURE_ASR ASM_CONST(0x0000000000000020)
+#define FW_FEATURE_DEBUG ASM_CONST(0x0000000000000040)
+#define FW_FEATURE_TERM ASM_CONST(0x0000000000000080)
+#define FW_FEATURE_PERF ASM_CONST(0x0000000000000100)
+#define FW_FEATURE_DUMP ASM_CONST(0x0000000000000200)
+#define FW_FEATURE_INTERRUPT ASM_CONST(0x0000000000000400)
+#define FW_FEATURE_MIGRATE ASM_CONST(0x0000000000000800)
+#define FW_FEATURE_PERFMON ASM_CONST(0x0000000000001000)
+#define FW_FEATURE_CRQ ASM_CONST(0x0000000000002000)
+#define FW_FEATURE_VIO ASM_CONST(0x0000000000004000)
+#define FW_FEATURE_RDMA ASM_CONST(0x0000000000008000)
+#define FW_FEATURE_LLAN ASM_CONST(0x0000000000010000)
+#define FW_FEATURE_BULK ASM_CONST(0x0000000000020000)
+#define FW_FEATURE_XDABR ASM_CONST(0x0000000000040000)
+#define FW_FEATURE_MULTITCE ASM_CONST(0x0000000000080000)
+#define FW_FEATURE_SPLPAR ASM_CONST(0x0000000000100000)
+#define FW_FEATURE_ISERIES ASM_CONST(0x0000000000200000)
+#define FW_FEATURE_LPAR ASM_CONST(0x0000000000400000)
+
+#ifndef __ASSEMBLY__
enum {
#ifdef CONFIG_PPC64
/* This is true if we are using the firmware NMI handler (typically LPAR) */
extern int fwnmi_active;
+#else /* __ASSEMBLY__ */
+
+#define BEGIN_FW_FTR_SECTION 96:
+
+#define END_FW_FTR_SECTION(msk, val) \
+97: \
+ .section __fw_ftr_fixup,"a"; \
+ .align 3; \
+ .llong msk; \
+ .llong val; \
+ .llong 96b; \
+ .llong 97b; \
+ .previous
+
+#define END_FW_FTR_SECTION_IFSET(msk) END_FW_FTR_SECTION((msk), (msk))
+#define END_FW_FTR_SECTION_IFCLR(msk) END_FW_FTR_SECTION((msk), 0)
+
#endif /* __ASSEMBLY__ */
#endif /* __KERNEL__ */
#endif /* __ASM_POWERPC_FIRMWARE_H */
git.samba.org / sfrench / cifs-2.6.git / commitdiff