[PATCH] powerpc/book64s: Move a few exception common handlers to make room
From: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Date: 2016-07-16 22:58:27
This moves the CBE RAS and facility unavailable "common" handlers down to after the FWNMI page. This frees up some space in the very demanded spaces before the relocation-on vectors and before the FWNMI page. They are still within 64K of __start, so CONFIG_RELOCATABLE should still work. Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> --- Written in an airline lounge after about 30h spent in planes and airports, so I apologize in advance if something is just plain wrong here, but it seems to compile ;-) arch/powerpc/kernel/exceptions-64s.S | 17 +++++++++-------- 1 file changed, 9 insertions(+), 8 deletions(-)
diff --git a/arch/powerpc/kernel/exceptions-64s.S b/arch/powerpc/kernel/exceptions-64s.S
index 4c94406..92bab94 100644
--- a/arch/powerpc/kernel/exceptions-64s.S
+++ b/arch/powerpc/kernel/exceptions-64s.S@@ -762,11 +762,6 @@ kvmppc_skip_Hinterrupt: #else STD_EXCEPTION_COMMON(0x1700, altivec_assist, unknown_exception) #endif -#ifdef CONFIG_CBE_RAS - STD_EXCEPTION_COMMON(0x1200, cbe_system_error, cbe_system_error_exception) - STD_EXCEPTION_COMMON(0x1600, cbe_maintenance, cbe_maintenance_exception) - STD_EXCEPTION_COMMON(0x1800, cbe_thermal, cbe_thermal_exception) -#endif /* CONFIG_CBE_RAS */ /* * Relocation-on interrupts: A subset of the interrupts can be delivered
@@ -1131,9 +1126,6 @@ END_FTR_SECTION_IFSET(CPU_FTR_VSX) bl vsx_unavailable_exception b ret_from_except - STD_EXCEPTION_COMMON(0xf60, facility_unavailable, facility_unavailable_exception) - STD_EXCEPTION_COMMON(0xf80, hv_facility_unavailable, facility_unavailable_exception) - /* Equivalents to the above handlers for relocation-on interrupt vectors */ STD_RELON_EXCEPTION_HV_OOL(0xe40, emulation_assist) MASKABLE_RELON_EXCEPTION_HV_OOL(0xe80, h_doorbell)
@@ -1170,6 +1162,15 @@ fwnmi_data_area: . = 0x8000 #endif /* defined(CONFIG_PPC_PSERIES) || defined(CONFIG_PPC_POWERNV) */ + STD_EXCEPTION_COMMON(0xf60, facility_unavailable, facility_unavailable_exception) + STD_EXCEPTION_COMMON(0xf80, hv_facility_unavailable, facility_unavailable_exception) + +#ifdef CONFIG_CBE_RAS + STD_EXCEPTION_COMMON(0x1200, cbe_system_error, cbe_system_error_exception) + STD_EXCEPTION_COMMON(0x1600, cbe_maintenance, cbe_maintenance_exception) + STD_EXCEPTION_COMMON(0x1800, cbe_thermal, cbe_thermal_exception) +#endif /* CONFIG_CBE_RAS */ + .globl hmi_exception_early hmi_exception_early: EXCEPTION_PROLOG_1(PACA_EXGEN, NOTEST, 0xe60)