From f09b7b2a1115d3afe02c66156746287f6c63bba0 Mon Sep 17 00:00:00 2001 From: Mark Nelson Date: Sun, 31 Jan 2010 20:12:58 +0000 Subject: [PATCH] powerpc/pseries: Pass CPPR value to H_XIRR hcall Now that we properly keep track of the CPPR value (since 49bd3647134ea47420067aea8d1401e722bf2aac, "powerpc/pseries: Track previous CPPR values to correctly EOI interrupts") we can pass it to the H_XIRR hcall. This is needed because the Partition Adjunct Option of new versions of pHyp extend the H_XIRR hcall to include the CPPR as an input parameter. Earlier versions not supporting this option just disregard the extra input parameter, so this doesn't cause any problems for existing systems. The Partition Adjunct Option is required for future systems that will support SR-IOV capable devices. Signed-off-by: Mark Nelson Signed-off-by: Benjamin Herrenschmidt --- arch/powerpc/platforms/pseries/plpar_wrappers.h | 4 ++-- arch/powerpc/platforms/pseries/xics.c | 7 ++++--- 2 files changed, 6 insertions(+), 5 deletions(-) diff --git a/arch/powerpc/platforms/pseries/plpar_wrappers.h b/arch/powerpc/platforms/pseries/plpar_wrappers.h index 0603c91538ae..a05f8d427856 100644 --- a/arch/powerpc/platforms/pseries/plpar_wrappers.h +++ b/arch/powerpc/platforms/pseries/plpar_wrappers.h @@ -259,12 +259,12 @@ static inline long plpar_ipi(unsigned long servernum, unsigned long mfrr) return plpar_hcall_norets(H_IPI, servernum, mfrr); } -static inline long plpar_xirr(unsigned long *xirr_ret) +static inline long plpar_xirr(unsigned long *xirr_ret, unsigned char cppr) { long rc; unsigned long retbuf[PLPAR_HCALL_BUFSIZE]; - rc = plpar_hcall(H_XIRR, retbuf); + rc = plpar_hcall(H_XIRR, retbuf, cppr); *xirr_ret = retbuf[0]; diff --git a/arch/powerpc/platforms/pseries/xics.c b/arch/powerpc/platforms/pseries/xics.c index 4ca641042ec3..1bcedd8b4616 100644 --- a/arch/powerpc/platforms/pseries/xics.c +++ b/arch/powerpc/platforms/pseries/xics.c @@ -120,12 +120,12 @@ static inline void direct_qirr_info(int n_cpu, u8 value) /* LPAR low level accessors */ -static inline unsigned int lpar_xirr_info_get(void) +static inline unsigned int lpar_xirr_info_get(unsigned char cppr) { unsigned long lpar_rc; unsigned long return_value; - lpar_rc = plpar_xirr(&return_value); + lpar_rc = plpar_xirr(&return_value, cppr); if (lpar_rc != H_SUCCESS) panic(" bad return code xirr - rc = %lx\n", lpar_rc); return (unsigned int)return_value; @@ -331,7 +331,8 @@ static unsigned int xics_get_irq_direct(void) static unsigned int xics_get_irq_lpar(void) { - unsigned int xirr = lpar_xirr_info_get(); + struct xics_cppr *os_cppr = &__get_cpu_var(xics_cppr); + unsigned int xirr = lpar_xirr_info_get(os_cppr->stack[os_cppr->index]); unsigned int vec = xics_xirr_vector(xirr); unsigned int irq; -- GitLab