Commit 39297dde authored by Mike Travis's avatar Mike Travis Committed by Borislav Petkov
Browse files

x86/platform/uv: Remove UV BAU TLB Shootdown Handler 



The Broadcast Assist Unit (BAU) TLB shootdown handler is being rewritten
to become the UV BAU APIC driver. It is designed to speed up sending
IPIs to selective CPUs within the system. Remove the current TLB
shutdown handler (tlb_uv.c) file and a couple of kernel hooks in the
interim.

Signed-off-by: default avatarMike Travis <mike.travis@hpe.com>
Signed-off-by: default avatarBorislav Petkov <bp@suse.de>
Reviewed-by: default avatarDimitri Sivanich <dimitri.sivanich@hpe.com>
Link: https://lkml.kernel.org/r/20201005203929.148656-2-mike.travis@hpe.com
parent a0947081

arch/x86/include/asm/idtentry.h

+0 −4
Original line number Diff line number Diff line
@@ -591,10 +591,6 @@ DECLARE_IDTENTRY_SYSVEC(CALL_FUNCTION_VECTOR, sysvec_call_function); 
#endif



#ifdef CONFIG_X86_LOCAL_APIC

# ifdef CONFIG_X86_UV

DECLARE_IDTENTRY_SYSVEC(UV_BAU_MESSAGE,			sysvec_uv_bau_message);

# endif



# ifdef CONFIG_X86_MCE_THRESHOLD

DECLARE_IDTENTRY_SYSVEC(THRESHOLD_APIC_VECTOR,		sysvec_threshold);

# endif

arch/x86/include/asm/uv/uv.h

+1 −3
Original line number Diff line number Diff line
@@ -35,10 +35,8 @@ extern int is_uv_hubbed(int uvtype); 
extern void uv_cpu_init(void);

extern void uv_nmi_init(void);

extern void uv_system_init(void);

extern const struct cpumask *uv_flush_tlb_others(const struct cpumask *cpumask,

						 const struct flush_tlb_info *info);



#else	/* X86_UV */

#else	/* !X86_UV */



static inline enum uv_system_type get_uv_system_type(void) { return UV_NONE; }

static inline bool is_early_uv_system(void)	{ return 0; }

arch/x86/include/asm/uv/uv_bau.h

deleted100644 → 0
+0 −755

File deleted.

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arch/x86/kernel/idt.c

+0 −3
Original line number Diff line number Diff line
@@ -148,9 +148,6 @@ static const __initconst struct idt_data apic_idts[] = { 
# endif

# ifdef CONFIG_IRQ_WORK

	INTG(IRQ_WORK_VECTOR,			asm_sysvec_irq_work),

# endif

# ifdef CONFIG_X86_UV

	INTG(UV_BAU_MESSAGE,			asm_sysvec_uv_bau_message),

# endif

	INTG(SPURIOUS_APIC_VECTOR,		asm_sysvec_spurious_apic_interrupt),

	INTG(ERROR_APIC_VECTOR,			asm_sysvec_error_interrupt),

arch/x86/mm/tlb.c

+0 −24

File changed.

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