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arch/powerpc: Remove unused function icp_native_cause_ipi_rm()

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Remove icp_native_cause_ipi_rm() as it has no callers since
commit 53af3ba2e819("KVM: PPC: Book3S HV: Allow guest exit path to have
MMU on")

Signed-off-by: Gautam Menghani <gautam@linux.ibm.com>
Reviewed-by: Ritesh Harjani (IBM) <ritesh.list@gmail.com>
Signed-off-by: Madhavan Srinivasan <maddy@linux.ibm.com>
Link: https://patch.msgid.link/20250101134251.436679-1-gautam@linux.ibm.com
This commit is contained in:
Gautam Menghani 2025-01-01 19:12:49 +05:30 committed by Madhavan Srinivasan
parent f17bcb97ed
commit 65acbd1285
2 changed files with 0 additions and 22 deletions
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1
arch/powerpc/include/asm/xics.h
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@ -31,7 +31,6 @@
#ifdef CONFIG_PPC_ICP_NATIVE
extern int icp_native_init(void);
extern void icp_native_flush_interrupt(void);
extern void icp_native_cause_ipi_rm(int cpu);
#else
static inline int icp_native_init(void) { return -ENODEV; }
#endif

21
arch/powerpc/sysdev/xics/icp-native.c
View File

@ -145,27 +145,6 @@ static void icp_native_cause_ipi(int cpu)
icp_native_set_qirr(cpu, IPI_PRIORITY);
}
#ifdef CONFIG_KVM_BOOK3S_HV_POSSIBLE
void icp_native_cause_ipi_rm(int cpu)
{
/*
* Currently not used to send IPIs to another CPU
* on the same core. Only caller is KVM real mode.
* Need the physical address of the XICS to be
* previously saved in kvm_hstate in the paca.
*/
void __iomem *xics_phys;
/*
* Just like the cause_ipi functions, it is required to
* include a full barrier before causing the IPI.
*/
xics_phys = paca_ptrs[cpu]->kvm_hstate.xics_phys;
mb();
__raw_rm_writeb(IPI_PRIORITY, xics_phys + XICS_MFRR);
}
#endif
/*
* Called when an interrupt is received on an off-line CPU to
* clear the interrupt, so that the CPU can go back to nap mode.