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Commit d868080d authored by Alex Chiang's avatar Alex Chiang Committed by Tony Luck
Browse files

[IA64] Only build arch/ia64/kernel/acpi.o when CONFIG_ACPI 



The following commit broke the ia64 sim_defconfig build:
	3b2b84c0b81108a9a869a88bf2beeb5a95d81dd1
	ACPI: processor: driver doesn't need to evaluate _PDC

This is because it added:
	+#include <acpi/processor.h>

To arch/ia64/kernel/acpi.c. Unfortunately, the ia64_simdefconfig does
not turn on CONFIG_ACPI, and we get build errors.

The fix described in $subject seems to be the most sensible way to
untangle the mess.

The other issue is that acpi_get_sysname() is required for all configs,
most of which define CONFIG_ACPI, but are not CONFIG_IA64_GENERIC. Turn
it into an inline to cover the "non generic" ia64 configs; to prevent
a duplicate definition build error, we need to wrap the definition in
acpi.o inside an #ifdef.

Finally, move the pm_idle and pm_power_off exports into process.c (which
is always built), similar to other architectures, and allow the sim
defconfig to link.

Signed-off-by: default avatarAlex Chiang <achiang@hp.com>
Signed-off-by: default avatarTony Luck <tony.luck@intel.com>
parent 60b341b7

arch/ia64/include/asm/acpi.h

+25 −0
Original line number Diff line number Diff line
@@ -99,7 +99,32 @@ ia64_acpi_release_global_lock (unsigned int *lock) 
#define acpi_processor_cstate_check(x) (x) /* no idle limits on IA64 :) */

static inline void disable_acpi(void) { }



#ifdef CONFIG_IA64_GENERIC

const char *acpi_get_sysname (void);

#else

static inline const char *acpi_get_sysname (void)

{

# if defined (CONFIG_IA64_HP_SIM)

	return "hpsim";

# elif defined (CONFIG_IA64_HP_ZX1)

	return "hpzx1";

# elif defined (CONFIG_IA64_HP_ZX1_SWIOTLB)

	return "hpzx1_swiotlb";

# elif defined (CONFIG_IA64_SGI_SN2)

	return "sn2";

# elif defined (CONFIG_IA64_SGI_UV)

	return "uv";

# elif defined (CONFIG_IA64_DIG)

	return "dig";

# elif defined (CONFIG_IA64_XEN_GUEST)

	return "xen";

# elif defined(CONFIG_IA64_DIG_VTD)

	return "dig_vtd";

# else

#	error Unknown platform.  Fix acpi.c.

# endif

}

#endif

int acpi_request_vector (u32 int_type);

int acpi_gsi_to_irq (u32 gsi, unsigned int *irq);

arch/ia64/kernel/Makefile

+2 −1
Original line number Diff line number Diff line
@@ -8,11 +8,12 @@ endif 


extra-y	:= head.o init_task.o vmlinux.lds



obj-y := acpi.o entry.o efi.o efi_stub.o gate-data.o fsys.o ia64_ksyms.o irq.o irq_ia64.o	\

obj-y := entry.o efi.o efi_stub.o gate-data.o fsys.o ia64_ksyms.o irq.o irq_ia64.o	\

	 irq_lsapic.o ivt.o machvec.o pal.o paravirt_patchlist.o patch.o process.o perfmon.o ptrace.o sal.o		\

	 salinfo.o setup.o signal.o sys_ia64.o time.o traps.o unaligned.o \

	 unwind.o mca.o mca_asm.o topology.o dma-mapping.o



obj-$(CONFIG_ACPI)		+= acpi.o

obj-$(CONFIG_IA64_BRL_EMU)	+= brl_emu.o

obj-$(CONFIG_IA64_GENERIC)	+= acpi-ext.o

obj-$(CONFIG_IA64_HP_ZX1)	+= acpi-ext.o

arch/ia64/kernel/acpi.c

+1 −32
Original line number Diff line number Diff line
@@ -60,11 +60,6 @@ 


#define PREFIX			"ACPI: "



void (*pm_idle) (void);

EXPORT_SYMBOL(pm_idle);

void (*pm_power_off) (void);

EXPORT_SYMBOL(pm_power_off);



u32 acpi_rsdt_forced;

unsigned int acpi_cpei_override;

unsigned int acpi_cpei_phys_cpuid;
@@ -83,12 +78,10 @@ static unsigned long __init acpi_find_rsdp(void) 
		       "v1.0/r0.71 tables no longer supported\n");

	return rsdp_phys;

}

#endif



const char __init *

acpi_get_sysname(void)

{

#ifdef CONFIG_IA64_GENERIC

	unsigned long rsdp_phys;

	struct acpi_table_rsdp *rsdp;

	struct acpi_table_xsdt *xsdt;
@@ -143,30 +136,8 @@ acpi_get_sysname(void) 
#endif



	return "dig";

#else

# if defined (CONFIG_IA64_HP_SIM)

	return "hpsim";

# elif defined (CONFIG_IA64_HP_ZX1)

	return "hpzx1";

# elif defined (CONFIG_IA64_HP_ZX1_SWIOTLB)

	return "hpzx1_swiotlb";

# elif defined (CONFIG_IA64_SGI_SN2)

	return "sn2";

# elif defined (CONFIG_IA64_SGI_UV)

	return "uv";

# elif defined (CONFIG_IA64_DIG)

	return "dig";

# elif defined (CONFIG_IA64_XEN_GUEST)

	return "xen";

# elif defined(CONFIG_IA64_DIG_VTD)

	return "dig_vtd";

# else

#	error Unknown platform.  Fix acpi.c.

# endif

#endif

}



#ifdef CONFIG_ACPI

#endif /* CONFIG_IA64_GENERIC */



#define ACPI_MAX_PLATFORM_INTERRUPTS	256
@@ -1060,5 +1031,3 @@ void acpi_restore_state_mem(void) {} 
 * do_suspend_lowlevel()

 */

void do_suspend_lowlevel(void) {}
 


#endif				/* CONFIG_ACPI */

arch/ia64/kernel/process.c

+4 −0
Original line number Diff line number Diff line
@@ -60,6 +60,10 @@ unsigned long idle_halt; 
EXPORT_SYMBOL(idle_halt);

unsigned long idle_nomwait;

EXPORT_SYMBOL(idle_nomwait);

void (*pm_idle) (void);

EXPORT_SYMBOL(pm_idle);

void (*pm_power_off) (void);

EXPORT_SYMBOL(pm_power_off);



void

ia64_do_show_stack (struct unw_frame_info *info, void *arg)