A few code paths need to check whether or not they are running on the PS3's LV1 hypervisor before making hcalls. This introduces a new firmware feature bit for this, FW_FEATURE_PS3_LV1. Now when both PS3 and IBM_CELL_BLADE are enabled, but not PSERIES, FW_FEATURE_PS3_LV1 and FW_FEATURE_LPAR get enabled at compile time, which is a bug. The same problem can also happen for (PPC_ISERIES && !PPC_PSERIES && PPC_SOMETHING_ELSE). In order to solve this, I introduce a new CONFIG_PPC_NATIVE option that is set when at least one platform is selected that can run without a hypervisor and then turns the firmware feature check into a run-time option. The new cell oprofile support that was recently merged does not work on hypervisor based platforms like the PS3, therefore make it depend on PPC_CELL_NATIVE instead of PPC_CELL. This may change if we get oprofile support for PS3. Signed-off-by: Arnd Bergmann Index: linux-2.6/include/asm-powerpc/firmware.h =================================================================== --- linux-2.6.orig/include/asm-powerpc/firmware.h +++ linux-2.6/include/asm-powerpc/firmware.h @@ -42,6 +42,7 @@ #define FW_FEATURE_SPLPAR ASM_CONST(0x0000000000100000) #define FW_FEATURE_ISERIES ASM_CONST(0x0000000000200000) #define FW_FEATURE_LPAR ASM_CONST(0x0000000000400000) +#define FW_FEATURE_PS3_LV1 ASM_CONST(0x0000000000800000) #ifndef __ASSEMBLY__ @@ -58,8 +59,10 @@ enum { FW_FEATURE_PSERIES_ALWAYS = 0, FW_FEATURE_ISERIES_POSSIBLE = FW_FEATURE_ISERIES | FW_FEATURE_LPAR, FW_FEATURE_ISERIES_ALWAYS = FW_FEATURE_ISERIES | FW_FEATURE_LPAR, - FW_FEATURE_PS3_POSSIBLE = FW_FEATURE_LPAR, - FW_FEATURE_PS3_ALWAYS = FW_FEATURE_LPAR, + FW_FEATURE_PS3_POSSIBLE = FW_FEATURE_LPAR | FW_FEATURE_PS3_LV1, + FW_FEATURE_PS3_ALWAYS = FW_FEATURE_LPAR | FW_FEATURE_PS3_LV1, + FW_FEATURE_NATIVE_POSSIBLE = 0, + FW_FEATURE_NATIVE_ALWAYS = 0, FW_FEATURE_POSSIBLE = #ifdef CONFIG_PPC_PSERIES FW_FEATURE_PSERIES_POSSIBLE | @@ -70,6 +73,9 @@ enum { #ifdef CONFIG_PPC_PS3 FW_FEATURE_PS3_POSSIBLE | #endif +#ifdef CONFIG_PPC_NATIVE + FW_FEATURE_NATIVE_ALWAYS | +#endif 0, FW_FEATURE_ALWAYS = #ifdef CONFIG_PPC_PSERIES @@ -81,6 +87,9 @@ enum { #ifdef CONFIG_PPC_PS3 FW_FEATURE_PS3_ALWAYS & #endif +#ifdef CONFIG_PPC_NATIVE + FW_FEATURE_NATIVE_ALWAYS & +#endif FW_FEATURE_POSSIBLE, #else /* CONFIG_PPC64 */ Index: linux-2.6/arch/powerpc/Kconfig =================================================================== --- linux-2.6.orig/arch/powerpc/Kconfig +++ linux-2.6/arch/powerpc/Kconfig @@ -390,6 +390,7 @@ config PPC_PSERIES select PPC_RTAS select RTAS_ERROR_LOGGING select PPC_UDBG_16550 + select PPC_NATIVE default y config PPC_ISERIES @@ -406,6 +407,7 @@ config PPC_CHRP select PPC_RTAS select PPC_MPC106 select PPC_UDBG_16550 + select PPC_NATIVE default y config PPC_EFIKA @@ -414,6 +416,7 @@ config PPC_EFIKA select PPC_RTAS select RTAS_PROC select PPC_MPC52xx + select PPC_NATIVE default y config PPC_PMAC @@ -422,6 +425,7 @@ config PPC_PMAC select MPIC select PPC_INDIRECT_PCI if PPC32 select PPC_MPC106 if PPC32 + select PPC_NATIVE default y config PPC_PMAC64 @@ -441,6 +445,7 @@ config PPC_PREP select PPC_I8259 select PPC_INDIRECT_PCI select PPC_UDBG_16550 + select PPC_NATIVE default y config PPC_MAPLE @@ -452,6 +457,7 @@ config PPC_MAPLE select GENERIC_TBSYNC select PPC_UDBG_16550 select PPC_970_NAP + select PPC_NATIVE default n help This option enables support for the Maple 970FX Evaluation Board. @@ -464,6 +470,7 @@ config PPC_PASEMI select MPIC select PPC_UDBG_16550 select GENERIC_TBSYNC + select PPC_NATIVE help This option enables support for PA Semi's PWRficient line of SoC processors, including PA6T-1682M @@ -478,6 +485,7 @@ config PPC_CELL_NATIVE select PPC_DCR_MMIO select PPC_OF_PLATFORM_PCI select PPC_INDIRECT_IO + select PPC_NATIVE select MPIC default n @@ -490,11 +498,6 @@ config PPC_IBM_CELL_BLADE select PPC_UDBG_16550 select UDBG_RTAS_CONSOLE -config UDBG_RTAS_CONSOLE - bool "RTAS based debug console" - depends on PPC_RTAS - default n - config PPC_PS3 bool "Sony PS3" depends on PPC_MULTIPLATFORM && PPC64 @@ -503,6 +506,19 @@ config PPC_PS3 This option enables support for the Sony PS3 game console and other platforms using the PS3 hypervisor. +config PPC_NATIVE + bool + depends on PPC_MULTIPLATFORM + help + Support for running natively on the hardware, i.e. without + a hypervisor. This option is not user-selectable but should + be selected by all platforms that need it. + +config UDBG_RTAS_CONSOLE + bool "RTAS based debug console" + depends on PPC_RTAS + default n + config XICS depends on PPC_PSERIES bool Index: linux-2.6/arch/powerpc/platforms/ps3/mm.c =================================================================== --- linux-2.6.orig/arch/powerpc/platforms/ps3/mm.c +++ linux-2.6/arch/powerpc/platforms/ps3/mm.c @@ -22,6 +22,7 @@ #include #include +#include #include #include #include @@ -293,6 +294,9 @@ static int __init ps3_mm_add_memory(void unsigned long start_pfn; unsigned long nr_pages; + if (!firmware_has_feature(FW_FEATURE_PS3_LV1)) + return 0; + BUG_ON(!mem_init_done); start_addr = USE_LPAR_ADDR ? map.r1.base : map.rm.size; Index: linux-2.6/arch/powerpc/platforms/ps3/setup.c =================================================================== --- linux-2.6.orig/arch/powerpc/platforms/ps3/setup.c +++ linux-2.6/arch/powerpc/platforms/ps3/setup.c @@ -108,7 +108,7 @@ static int __init ps3_probe(void) if (!of_flat_dt_is_compatible(dt_root, "PS3")) return 0; - powerpc_firmware_features |= FW_FEATURE_LPAR; + powerpc_firmware_features |= FW_FEATURE_PS3_POSSIBLE; ps3_os_area_init(); ps3_mm_init(); Index: linux-2.6/drivers/ps3/system-bus.c =================================================================== --- linux-2.6.orig/drivers/ps3/system-bus.c +++ linux-2.6/drivers/ps3/system-bus.c @@ -27,6 +27,7 @@ #include #include #include +#include #define dump_mmio_region(_a) _dump_mmio_region(_a, __func__, __LINE__) static void _dump_mmio_region(const struct ps3_mmio_region* r, @@ -167,6 +168,9 @@ int __init ps3_system_bus_init(void) { int result; + if (!firmware_has_feature(FW_FEATURE_PS3_LV1)) + return 0; + result = bus_register(&ps3_system_bus_type); BUG_ON(result); return result; Index: linux-2.6/arch/powerpc/oprofile/Makefile =================================================================== --- linux-2.6.orig/arch/powerpc/oprofile/Makefile +++ linux-2.6/arch/powerpc/oprofile/Makefile @@ -11,7 +11,7 @@ DRIVER_OBJS := $(addprefix ../../../driv timer_int.o ) oprofile-y := $(DRIVER_OBJS) common.o backtrace.o -oprofile-$(CONFIG_PPC_CELL) += op_model_cell.o +oprofile-$(CONFIG_PPC_CELL_NATIVE) += op_model_cell.o oprofile-$(CONFIG_PPC64) += op_model_rs64.o op_model_power4.o oprofile-$(CONFIG_FSL_BOOKE) += op_model_fsl_booke.o oprofile-$(CONFIG_6xx) += op_model_7450.o Index: linux-2.6/arch/powerpc/oprofile/common.c =================================================================== --- linux-2.6.orig/arch/powerpc/oprofile/common.c +++ linux-2.6/arch/powerpc/oprofile/common.c @@ -147,7 +147,7 @@ int __init oprofile_arch_init(struct opr switch (cur_cpu_spec->oprofile_type) { #ifdef CONFIG_PPC64 -#ifdef CONFIG_PPC_CELL +#ifdef CONFIG_PPC_CELL_NATIVE case PPC_OPROFILE_CELL: model = &op_model_cell; break; Index: linux-2.6/arch/powerpc/mm/Makefile =================================================================== --- linux-2.6.orig/arch/powerpc/mm/Makefile +++ linux-2.6/arch/powerpc/mm/Makefile @@ -8,7 +8,7 @@ endif obj-y := fault.o mem.o lmb.o obj-$(CONFIG_PPC32) += init_32.o pgtable_32.o mmu_context_32.o -hash-$(CONFIG_PPC_MULTIPLATFORM) := hash_native_64.o +hash-$(CONFIG_PPC_NATIVE) := hash_native_64.o obj-$(CONFIG_PPC64) += init_64.o pgtable_64.o mmu_context_64.o \ hash_utils_64.o hash_low_64.o tlb_64.o \ slb_low.o slb.o stab.o mmap.o imalloc.o \ --