Merge branch 'merge' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc
Pull powerpc fixes from Benjamin Herrenschmidt:
"This is purely regressions (though not all recent ones) or stable
material"
* 'merge' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc:
powerpc: Partial revert of "Context switch more PMU related SPRs"
powerpc/perf: Fix deadlock caused by calling printk() in PMU exception
powerpc/hw_breakpoints: Add DABRX cpu feature to fix 32-bit regression
powerpc/power8: Update denormalization handler
powerpc/pseries: Simplify denormalization handler
powerpc/power8: Fix oprofile and perf
powerpc/eeh: Don't check RTAS token to get PE addr
powerpc/pci: Check the bus address instead of resource address in pcibios_fixup_resources
diff --git a/arch/powerpc/include/asm/cputable.h b/arch/powerpc/include/asm/cputable.h
index 26807e5..6f3887d 100644
--- a/arch/powerpc/include/asm/cputable.h
+++ b/arch/powerpc/include/asm/cputable.h
@@ -176,6 +176,7 @@
#define CPU_FTR_CFAR LONG_ASM_CONST(0x0100000000000000)
#define CPU_FTR_HAS_PPR LONG_ASM_CONST(0x0200000000000000)
#define CPU_FTR_DAWR LONG_ASM_CONST(0x0400000000000000)
+#define CPU_FTR_DABRX LONG_ASM_CONST(0x0800000000000000)
#ifndef __ASSEMBLY__
@@ -394,19 +395,20 @@
CPU_FTR_PPCAS_ARCH_V2 | CPU_FTR_CTRL | CPU_FTR_ARCH_201 | \
CPU_FTR_ALTIVEC_COMP | CPU_FTR_CAN_NAP | CPU_FTR_MMCRA | \
CPU_FTR_CP_USE_DCBTZ | CPU_FTR_STCX_CHECKS_ADDRESS | \
- CPU_FTR_HVMODE)
+ CPU_FTR_HVMODE | CPU_FTR_DABRX)
#define CPU_FTRS_POWER5 (CPU_FTR_USE_TB | CPU_FTR_LWSYNC | \
CPU_FTR_PPCAS_ARCH_V2 | CPU_FTR_CTRL | \
CPU_FTR_MMCRA | CPU_FTR_SMT | \
CPU_FTR_COHERENT_ICACHE | CPU_FTR_PURR | \
- CPU_FTR_STCX_CHECKS_ADDRESS | CPU_FTR_POPCNTB)
+ CPU_FTR_STCX_CHECKS_ADDRESS | CPU_FTR_POPCNTB | CPU_FTR_DABRX)
#define CPU_FTRS_POWER6 (CPU_FTR_USE_TB | CPU_FTR_LWSYNC | \
CPU_FTR_PPCAS_ARCH_V2 | CPU_FTR_CTRL | \
CPU_FTR_MMCRA | CPU_FTR_SMT | \
CPU_FTR_COHERENT_ICACHE | \
CPU_FTR_PURR | CPU_FTR_SPURR | CPU_FTR_REAL_LE | \
CPU_FTR_DSCR | CPU_FTR_UNALIGNED_LD_STD | \
- CPU_FTR_STCX_CHECKS_ADDRESS | CPU_FTR_POPCNTB | CPU_FTR_CFAR)
+ CPU_FTR_STCX_CHECKS_ADDRESS | CPU_FTR_POPCNTB | CPU_FTR_CFAR | \
+ CPU_FTR_DABRX)
#define CPU_FTRS_POWER7 (CPU_FTR_USE_TB | CPU_FTR_LWSYNC | \
CPU_FTR_PPCAS_ARCH_V2 | CPU_FTR_CTRL | CPU_FTR_ARCH_206 |\
CPU_FTR_MMCRA | CPU_FTR_SMT | \
@@ -415,7 +417,7 @@
CPU_FTR_DSCR | CPU_FTR_SAO | CPU_FTR_ASYM_SMT | \
CPU_FTR_STCX_CHECKS_ADDRESS | CPU_FTR_POPCNTB | CPU_FTR_POPCNTD | \
CPU_FTR_ICSWX | CPU_FTR_CFAR | CPU_FTR_HVMODE | \
- CPU_FTR_VMX_COPY | CPU_FTR_HAS_PPR)
+ CPU_FTR_VMX_COPY | CPU_FTR_HAS_PPR | CPU_FTR_DABRX)
#define CPU_FTRS_POWER8 (CPU_FTR_USE_TB | CPU_FTR_LWSYNC | \
CPU_FTR_PPCAS_ARCH_V2 | CPU_FTR_CTRL | CPU_FTR_ARCH_206 |\
CPU_FTR_MMCRA | CPU_FTR_SMT | \
@@ -430,14 +432,15 @@
CPU_FTR_PPCAS_ARCH_V2 | CPU_FTR_CTRL | \
CPU_FTR_ALTIVEC_COMP | CPU_FTR_MMCRA | CPU_FTR_SMT | \
CPU_FTR_PAUSE_ZERO | CPU_FTR_CELL_TB_BUG | CPU_FTR_CP_USE_DCBTZ | \
- CPU_FTR_UNALIGNED_LD_STD)
+ CPU_FTR_UNALIGNED_LD_STD | CPU_FTR_DABRX)
#define CPU_FTRS_PA6T (CPU_FTR_USE_TB | CPU_FTR_LWSYNC | \
CPU_FTR_PPCAS_ARCH_V2 | CPU_FTR_ALTIVEC_COMP | \
- CPU_FTR_PURR | CPU_FTR_REAL_LE)
+ CPU_FTR_PURR | CPU_FTR_REAL_LE | CPU_FTR_DABRX)
#define CPU_FTRS_COMPATIBLE (CPU_FTR_USE_TB | CPU_FTR_PPCAS_ARCH_V2)
#define CPU_FTRS_A2 (CPU_FTR_USE_TB | CPU_FTR_SMT | CPU_FTR_DBELL | \
- CPU_FTR_NOEXECUTE | CPU_FTR_NODSISRALIGN | CPU_FTR_ICSWX)
+ CPU_FTR_NOEXECUTE | CPU_FTR_NODSISRALIGN | \
+ CPU_FTR_ICSWX | CPU_FTR_DABRX )
#ifdef __powerpc64__
#ifdef CONFIG_PPC_BOOK3E
diff --git a/arch/powerpc/kernel/cputable.c b/arch/powerpc/kernel/cputable.c
index 1f0937d..2a45d0f 100644
--- a/arch/powerpc/kernel/cputable.c
+++ b/arch/powerpc/kernel/cputable.c
@@ -452,8 +452,8 @@
.mmu_features = MMU_FTRS_POWER8,
.icache_bsize = 128,
.dcache_bsize = 128,
- .oprofile_type = PPC_OPROFILE_POWER4,
- .oprofile_cpu_type = 0,
+ .oprofile_type = PPC_OPROFILE_INVALID,
+ .oprofile_cpu_type = "ppc64/ibm-compat-v1",
.cpu_setup = __setup_cpu_power8,
.cpu_restore = __restore_cpu_power8,
.platform = "power8",
@@ -506,8 +506,8 @@
.dcache_bsize = 128,
.num_pmcs = 6,
.pmc_type = PPC_PMC_IBM,
- .oprofile_cpu_type = 0,
- .oprofile_type = PPC_OPROFILE_POWER4,
+ .oprofile_cpu_type = "ppc64/power8",
+ .oprofile_type = PPC_OPROFILE_INVALID,
.cpu_setup = __setup_cpu_power8,
.cpu_restore = __restore_cpu_power8,
.platform = "power8",
diff --git a/arch/powerpc/kernel/entry_64.S b/arch/powerpc/kernel/entry_64.S
index 246b11c..8741c85 100644
--- a/arch/powerpc/kernel/entry_64.S
+++ b/arch/powerpc/kernel/entry_64.S
@@ -465,20 +465,6 @@
std r0, THREAD_EBBHR(r3)
mfspr r0, SPRN_EBBRR
std r0, THREAD_EBBRR(r3)
-
- /* PMU registers made user read/(write) by EBB */
- mfspr r0, SPRN_SIAR
- std r0, THREAD_SIAR(r3)
- mfspr r0, SPRN_SDAR
- std r0, THREAD_SDAR(r3)
- mfspr r0, SPRN_SIER
- std r0, THREAD_SIER(r3)
- mfspr r0, SPRN_MMCR0
- std r0, THREAD_MMCR0(r3)
- mfspr r0, SPRN_MMCR2
- std r0, THREAD_MMCR2(r3)
- mfspr r0, SPRN_MMCRA
- std r0, THREAD_MMCRA(r3)
END_FTR_SECTION_IFSET(CPU_FTR_ARCH_207S)
#endif
@@ -581,20 +567,6 @@
ld r0, THREAD_EBBRR(r4)
mtspr SPRN_EBBRR, r0
- /* PMU registers made user read/(write) by EBB */
- ld r0, THREAD_SIAR(r4)
- mtspr SPRN_SIAR, r0
- ld r0, THREAD_SDAR(r4)
- mtspr SPRN_SDAR, r0
- ld r0, THREAD_SIER(r4)
- mtspr SPRN_SIER, r0
- ld r0, THREAD_MMCR0(r4)
- mtspr SPRN_MMCR0, r0
- ld r0, THREAD_MMCR2(r4)
- mtspr SPRN_MMCR2, r0
- ld r0, THREAD_MMCRA(r4)
- mtspr SPRN_MMCRA, r0
-
ld r0,THREAD_TAR(r4)
mtspr SPRN_TAR,r0
END_FTR_SECTION_IFSET(CPU_FTR_ARCH_207S)
diff --git a/arch/powerpc/kernel/exceptions-64s.S b/arch/powerpc/kernel/exceptions-64s.S
index e6eba1b..e783453 100644
--- a/arch/powerpc/kernel/exceptions-64s.S
+++ b/arch/powerpc/kernel/exceptions-64s.S
@@ -454,38 +454,14 @@
xori r10,r10,(MSR_FE0|MSR_FE1)
mtmsrd r10
sync
- fmr 0,0
- fmr 1,1
- fmr 2,2
- fmr 3,3
- fmr 4,4
- fmr 5,5
- fmr 6,6
- fmr 7,7
- fmr 8,8
- fmr 9,9
- fmr 10,10
- fmr 11,11
- fmr 12,12
- fmr 13,13
- fmr 14,14
- fmr 15,15
- fmr 16,16
- fmr 17,17
- fmr 18,18
- fmr 19,19
- fmr 20,20
- fmr 21,21
- fmr 22,22
- fmr 23,23
- fmr 24,24
- fmr 25,25
- fmr 26,26
- fmr 27,27
- fmr 28,28
- fmr 29,29
- fmr 30,30
- fmr 31,31
+
+#define FMR2(n) fmr (n), (n) ; fmr n+1, n+1
+#define FMR4(n) FMR2(n) ; FMR2(n+2)
+#define FMR8(n) FMR4(n) ; FMR4(n+4)
+#define FMR16(n) FMR8(n) ; FMR8(n+8)
+#define FMR32(n) FMR16(n) ; FMR16(n+16)
+ FMR32(0)
+
FTR_SECTION_ELSE
/*
* To denormalise we need to move a copy of the register to itself.
@@ -495,39 +471,25 @@
oris r10,r10,MSR_VSX@h
mtmsrd r10
sync
- XVCPSGNDP(0,0,0)
- XVCPSGNDP(1,1,1)
- XVCPSGNDP(2,2,2)
- XVCPSGNDP(3,3,3)
- XVCPSGNDP(4,4,4)
- XVCPSGNDP(5,5,5)
- XVCPSGNDP(6,6,6)
- XVCPSGNDP(7,7,7)
- XVCPSGNDP(8,8,8)
- XVCPSGNDP(9,9,9)
- XVCPSGNDP(10,10,10)
- XVCPSGNDP(11,11,11)
- XVCPSGNDP(12,12,12)
- XVCPSGNDP(13,13,13)
- XVCPSGNDP(14,14,14)
- XVCPSGNDP(15,15,15)
- XVCPSGNDP(16,16,16)
- XVCPSGNDP(17,17,17)
- XVCPSGNDP(18,18,18)
- XVCPSGNDP(19,19,19)
- XVCPSGNDP(20,20,20)
- XVCPSGNDP(21,21,21)
- XVCPSGNDP(22,22,22)
- XVCPSGNDP(23,23,23)
- XVCPSGNDP(24,24,24)
- XVCPSGNDP(25,25,25)
- XVCPSGNDP(26,26,26)
- XVCPSGNDP(27,27,27)
- XVCPSGNDP(28,28,28)
- XVCPSGNDP(29,29,29)
- XVCPSGNDP(30,30,30)
- XVCPSGNDP(31,31,31)
+
+#define XVCPSGNDP2(n) XVCPSGNDP(n,n,n) ; XVCPSGNDP(n+1,n+1,n+1)
+#define XVCPSGNDP4(n) XVCPSGNDP2(n) ; XVCPSGNDP2(n+2)
+#define XVCPSGNDP8(n) XVCPSGNDP4(n) ; XVCPSGNDP4(n+4)
+#define XVCPSGNDP16(n) XVCPSGNDP8(n) ; XVCPSGNDP8(n+8)
+#define XVCPSGNDP32(n) XVCPSGNDP16(n) ; XVCPSGNDP16(n+16)
+ XVCPSGNDP32(0)
+
ALT_FTR_SECTION_END_IFCLR(CPU_FTR_ARCH_206)
+
+BEGIN_FTR_SECTION
+ b denorm_done
+END_FTR_SECTION_IFCLR(CPU_FTR_ARCH_207S)
+/*
+ * To denormalise we need to move a copy of the register to itself.
+ * For POWER8 we need to do that for all 64 VSX registers
+ */
+ XVCPSGNDP32(32)
+denorm_done:
mtspr SPRN_HSRR0,r11
mtcrf 0x80,r9
ld r9,PACA_EXGEN+EX_R9(r13)
diff --git a/arch/powerpc/kernel/pci-common.c b/arch/powerpc/kernel/pci-common.c
index 7f2273c..eabeec9 100644
--- a/arch/powerpc/kernel/pci-common.c
+++ b/arch/powerpc/kernel/pci-common.c
@@ -827,6 +827,7 @@
}
for (i = 0; i < DEVICE_COUNT_RESOURCE; i++) {
struct resource *res = dev->resource + i;
+ struct pci_bus_region reg;
if (!res->flags)
continue;
@@ -835,8 +836,9 @@
* at 0 as unset as well, except if PCI_PROBE_ONLY is also set
* since in that case, we don't want to re-assign anything
*/
+ pcibios_resource_to_bus(dev, ®, res);
if (pci_has_flag(PCI_REASSIGN_ALL_RSRC) ||
- (res->start == 0 && !pci_has_flag(PCI_PROBE_ONLY))) {
+ (reg.start == 0 && !pci_has_flag(PCI_PROBE_ONLY))) {
/* Only print message if not re-assigning */
if (!pci_has_flag(PCI_REASSIGN_ALL_RSRC))
pr_debug("PCI:%s Resource %d %016llx-%016llx [%x] "
diff --git a/arch/powerpc/kernel/process.c b/arch/powerpc/kernel/process.c
index a902723..b0f3e3f 100644
--- a/arch/powerpc/kernel/process.c
+++ b/arch/powerpc/kernel/process.c
@@ -399,7 +399,8 @@
static inline int __set_dabr(unsigned long dabr, unsigned long dabrx)
{
mtspr(SPRN_DABR, dabr);
- mtspr(SPRN_DABRX, dabrx);
+ if (cpu_has_feature(CPU_FTR_DABRX))
+ mtspr(SPRN_DABRX, dabrx);
return 0;
}
#else
diff --git a/arch/powerpc/perf/core-book3s.c b/arch/powerpc/perf/core-book3s.c
index 845c867..29c6482 100644
--- a/arch/powerpc/perf/core-book3s.c
+++ b/arch/powerpc/perf/core-book3s.c
@@ -1758,7 +1758,7 @@
}
}
}
- if ((!found) && printk_ratelimit())
+ if (!found && !nmi && printk_ratelimit())
printk(KERN_WARNING "Can't find PMC that caused IRQ\n");
/*
diff --git a/arch/powerpc/platforms/pseries/eeh_pseries.c b/arch/powerpc/platforms/pseries/eeh_pseries.c
index 19506f9..b456b15 100644
--- a/arch/powerpc/platforms/pseries/eeh_pseries.c
+++ b/arch/powerpc/platforms/pseries/eeh_pseries.c
@@ -83,7 +83,11 @@
ibm_configure_pe = rtas_token("ibm,configure-pe");
ibm_configure_bridge = rtas_token("ibm,configure-bridge");
- /* necessary sanity check */
+ /*
+ * Necessary sanity check. We needn't check "get-config-addr-info"
+ * and its variant since the old firmware probably support address
+ * of domain/bus/slot/function for EEH RTAS operations.
+ */
if (ibm_set_eeh_option == RTAS_UNKNOWN_SERVICE) {
pr_warning("%s: RTAS service <ibm,set-eeh-option> invalid\n",
__func__);
@@ -102,12 +106,6 @@
pr_warning("%s: RTAS service <ibm,slot-error-detail> invalid\n",
__func__);
return -EINVAL;
- } else if (ibm_get_config_addr_info2 == RTAS_UNKNOWN_SERVICE &&
- ibm_get_config_addr_info == RTAS_UNKNOWN_SERVICE) {
- pr_warning("%s: RTAS service <ibm,get-config-addr-info2> and "
- "<ibm,get-config-addr-info> invalid\n",
- __func__);
- return -EINVAL;
} else if (ibm_configure_pe == RTAS_UNKNOWN_SERVICE &&
ibm_configure_bridge == RTAS_UNKNOWN_SERVICE) {
pr_warning("%s: RTAS service <ibm,configure-pe> and "