The "lppaca" is a structure registered with the hypervisor. This
is unnecessary when running on non-virtualised platforms. One field
from the lppaca (pmcregs_in_use) is also used by the host, so move
the host part out into the paca (lppaca field is still updated in
guest mode).
Signed-off-by: Nicholas Piggin
---
arch/powerpc/include/asm/paca.h | 8 ++--
arch/powerpc/include/asm/pmc.h | 10 +-
arch/powerpc/kernel/asm-offsets.c | 7 +++
arch/powerpc/kernel/paca.c | 16 +---
arch/powerpc/kernel/prom.c | 10 +++---
arch/powerpc/kvm/book3s_hv_interrupts.S | 3 +--
arch/powerpc/kvm/book3s_hv_rmhandlers.S | 5 ++---
7 files changed, 45 insertions(+), 14 deletions(-)
diff --git a/arch/powerpc/include/asm/paca.h b/arch/powerpc/include/asm/paca.h
index dc88a31cc79a..de47c5a4f132 100644
--- a/arch/powerpc/include/asm/paca.h
+++ b/arch/powerpc/include/asm/paca.h
@@ -57,7 +57,7 @@ struct task_struct;
* processor.
*/
struct paca_struct {
-#ifdef CONFIG_PPC_BOOK3S
+#ifdef CONFIG_PPC_PSERIES
/*
* Because hw_cpu_id, unlike other paca fields, is accessed
* routinely from other CPUs (from the IRQ code), we stick to
@@ -66,7 +66,8 @@ struct paca_struct {
*/
struct lppaca *lppaca_ptr; /* Pointer to LpPaca for PLIC */
-#endif /* CONFIG_PPC_BOOK3S */
+#endif /* CONFIG_PPC_PSERIES */
+
/*
* MAGIC: the spinlock functions in arch/powerpc/lib/locks.c
* load lock_token and paca_index with a single lwz
@@ -158,6 +159,9 @@ struct paca_struct {
u64 saved_r1; /* r1 save for RTAS calls or PM */
u64 saved_msr; /* MSR saved here by enter_rtas */
u16 trap_save; /* Used when bad stack is encountered */
+#ifdef CONFIG_KVM_BOOK3S_HV_POSSIBLE
+ u8 pmcregs_in_use; /* pseries puts this in lppaca */
+#endif
u8 soft_enabled;/* irq soft-enable flag */
u8 irq_happened;/* irq happened while soft-disabled */
u8 io_sync; /* writel() needs spin_unlock sync */
diff --git a/arch/powerpc/include/asm/pmc.h b/arch/powerpc/include/asm/pmc.h
index 5a9ede4962cb..7b672a72cb0b 100644
--- a/arch/powerpc/include/asm/pmc.h
+++ b/arch/powerpc/include/asm/pmc.h
@@ -31,10 +31,18 @@ void ppc_enable_pmcs(void);
#ifdef CONFIG_PPC_BOOK3S_64
#include
+#include
static inline void ppc_set_pmu_inuse(int inuse)
{
- get_lppaca()->pmcregs_in_use = inuse;
+#ifdef CONFIG_PPC_PSERIES
+ if (firmware_has_feature(FW_FEATURE_LPAR))
+ get_lppaca()->pmcregs_in_use = inuse;
+#endif
+
+#ifdef CONFIG_KVM_BOOK3S_HV_POSSIBLE
+ get_paca()->pmcregs_in_use = inuse;
+#endif
}
extern void power4_enable_pmcs(void);
diff --git a/arch/powerpc/kernel/asm-offsets.c
b/arch/powerpc/kernel/asm-offsets.c
index 6e95c2c19a7e..831b277c91c7 100644
--- a/arch/powerpc/kernel/asm-offsets.c
+++ b/arch/powerpc/kernel/asm-offsets.c
@@ -221,12 +221,19 @@ int main(void)
OFFSET(PACA_EXMC, paca_struct, exmc);
OFFSET(PACA_EXSLB, paca_struct, exslb);
OFFSET(PACA_EXNMI, paca_struct, exnmi);
+#ifdef CONFIG_PPC_PSERIES
OFFSET(PACALPPACAPTR, paca_struct, lppaca_ptr);
+#endif
OFFSET(PACA_SLBSHADOWPTR, paca_struct, slb_shadow_ptr);
OFFSET(SLBSHADOW_STACKVSID, slb_shadow, save_area[SLB_NUM_BOLTED -
1].vsid);
OFFSET(SLBSHADOW_STACKESID, slb_shadow, save_area[SLB_NUM_BOLTED -
1].esid);
OFFSET(SLBSHADOW_SAVEAREA, slb_shadow, save_area);
+#ifdef CONFIG_PPC_PSERIES
OFFSET(LPPACA_PMCINUSE, lppaca, pmcregs_in_use);
+#endif
+#ifdef CONFIG_KVM_BOOK3S_HV_POSSIBLE
+ OFFSET(PACA_PMCINUSE, paca_struct, pmcregs_in_use);
+#endif
OFFSET(LPPACA_DTLIDX, lppaca, dtl_idx);
OFFSET(LPPACA_YIELDCOUNT, lppaca, yield_count);
OFFSET(PACA_DTL_RIDX, paca_struct, dtl_ridx);
diff --git a/arch/powerpc/kernel/paca.c b/arch/powerpc/kernel/paca.c
index 354a955ca377..5afd96980679 100644
--- a/arch/powerpc/kernel/paca.c
+++ b/arch/powerpc/kernel/paca.c
@@ -20,7 +20,7 @@
#include "setup.h"
-#ifdef CONFIG_PPC_BOOK3S
+#ifdef CONFIG_PPC_PSERIES
/*
* The structure which the hypervisor knows about - this structure
@@ -47,6 +47,9 @@ static long __initdata lppaca_size;
static void __init allocate_lppacas(int nr_cpus, unsigned long limit)
{
+ if (!firmware_has_feature(FW_FEATURE_LPAR))
+ return;
+
if (nr_cpus <= NR_LPPACAS)
return;
@@ -60,6 +63,9 @@ static struct lppaca * __init new_lppaca(int cpu)
{
struct lppaca *lp;
+ if (!firmware_has_feature(FW_FEATURE_LPAR))
+ return NULL;
+
if (cpu < NR_LPPACAS)
return &lppaca[cpu];
@@ -73,6 +79,9 @@ static void __init free_lppacas(void)
{
long new_size = 0, nr;
+ if (!firmware_has_feature(FW_FEATURE_LPAR))
+
