Update Linux to v5.10.157
Sourced from [1]
[1] https://cdn.kernel.org/pub/linux/kernel/v5.x/linux-5.10.157.tar.xz
Signed-off-by: Olivier Deprez <olivier.deprez@arm.com>
Change-Id: I7b30d9e98d8c465d6b44de8e7433b4a40b3289ba
diff --git a/arch/powerpc/Kconfig b/arch/powerpc/Kconfig
index 5afa0eb..78dd6be 100644
--- a/arch/powerpc/Kconfig
+++ b/arch/powerpc/Kconfig
@@ -786,7 +786,6 @@
range 13 15
default "15" if PPC_256K_PAGES
default "14" if PPC64
- default "14" if KASAN
default "13"
help
Used to define the stack size. The default is almost always what you
diff --git a/arch/powerpc/Makefile b/arch/powerpc/Makefile
index 5c8c062..6122541 100644
--- a/arch/powerpc/Makefile
+++ b/arch/powerpc/Makefile
@@ -17,23 +17,6 @@
# Set default 32 bits cross compilers for vdso and boot wrapper
CROSS32_COMPILE ?=
-ifeq ($(HAS_BIARCH),y)
-ifeq ($(CROSS32_COMPILE),)
-ifdef CONFIG_PPC32
-# These options will be overridden by any -mcpu option that the CPU
-# or platform code sets later on the command line, but they are needed
-# to set a sane 32-bit cpu target for the 64-bit cross compiler which
-# may default to the wrong ISA.
-KBUILD_CFLAGS += -mcpu=powerpc
-KBUILD_AFLAGS += -mcpu=powerpc
-endif
-endif
-endif
-
-ifdef CONFIG_PPC_BOOK3S_32
-KBUILD_CFLAGS += -mcpu=powerpc
-endif
-
# If we're on a ppc/ppc64/ppc64le machine use that defconfig, otherwise just use
# ppc64_defconfig because we have nothing better to go on.
uname := $(shell uname -m)
@@ -170,9 +153,9 @@
CFLAGS-$(CONFIG_GENERIC_CPU) += $(call cc-option,-mtune=power9,-mtune=power8)
else
CFLAGS-$(CONFIG_GENERIC_CPU) += $(call cc-option,-mtune=power7,$(call cc-option,-mtune=power5))
-CFLAGS-$(CONFIG_GENERIC_CPU) += $(call cc-option,-mcpu=power5,-mcpu=power4)
+CFLAGS-$(CONFIG_GENERIC_CPU) += -mcpu=power4
endif
-else
+else ifdef CONFIG_PPC_BOOK3E_64
CFLAGS-$(CONFIG_GENERIC_CPU) += -mcpu=powerpc64
endif
@@ -190,6 +173,7 @@
endif
CFLAGS-$(CONFIG_TARGET_CPU_BOOL) += $(call cc-option,-mcpu=$(CONFIG_TARGET_CPU))
+AFLAGS-$(CONFIG_TARGET_CPU_BOOL) += $(call cc-option,-mcpu=$(CONFIG_TARGET_CPU))
# Altivec option not allowed with e500mc64 in GCC.
ifdef CONFIG_ALTIVEC
@@ -200,14 +184,6 @@
CFLAGS-$(CONFIG_E5500_CPU) += $(E5500_CPU)
CFLAGS-$(CONFIG_E6500_CPU) += $(call cc-option,-mcpu=e6500,$(E5500_CPU))
-ifdef CONFIG_PPC32
-ifdef CONFIG_PPC_E500MC
-CFLAGS-y += $(call cc-option,-mcpu=e500mc,-mcpu=powerpc)
-else
-CFLAGS-$(CONFIG_E500) += $(call cc-option,-mcpu=8540 -msoft-float,-mcpu=powerpc)
-endif
-endif
-
asinstr := $(call as-instr,lis 9$(comma)foo@high,-DHAVE_AS_ATHIGH=1)
KBUILD_CPPFLAGS += -I $(srctree)/arch/$(ARCH) $(asinstr)
diff --git a/arch/powerpc/boot/Makefile b/arch/powerpc/boot/Makefile
index e4b364b..8b78eba 100644
--- a/arch/powerpc/boot/Makefile
+++ b/arch/powerpc/boot/Makefile
@@ -30,6 +30,7 @@
BOOTCFLAGS := -Wall -Wundef -Wstrict-prototypes -Wno-trigraphs \
-fno-strict-aliasing -O2 -msoft-float -mno-altivec -mno-vsx \
+ $(call cc-option,-mno-spe) $(call cc-option,-mspe=no) \
-pipe -fomit-frame-pointer -fno-builtin -fPIC -nostdinc \
$(LINUXINCLUDE)
diff --git a/arch/powerpc/boot/dts/fsl/e500v1_power_isa.dtsi b/arch/powerpc/boot/dts/fsl/e500v1_power_isa.dtsi
new file mode 100644
index 0000000..7e2a90c
--- /dev/null
+++ b/arch/powerpc/boot/dts/fsl/e500v1_power_isa.dtsi
@@ -0,0 +1,51 @@
+/*
+ * e500v1 Power ISA Device Tree Source (include)
+ *
+ * Copyright 2012 Freescale Semiconductor Inc.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ * * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * * Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ * * Neither the name of Freescale Semiconductor nor the
+ * names of its contributors may be used to endorse or promote products
+ * derived from this software without specific prior written permission.
+ *
+ *
+ * ALTERNATIVELY, this software may be distributed under the terms of the
+ * GNU General Public License ("GPL") as published by the Free Software
+ * Foundation, either version 2 of that License or (at your option) any
+ * later version.
+ *
+ * THIS SOFTWARE IS PROVIDED BY Freescale Semiconductor "AS IS" AND ANY
+ * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+ * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED. IN NO EVENT SHALL Freescale Semiconductor BE LIABLE FOR ANY
+ * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+ * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+/ {
+ cpus {
+ power-isa-version = "2.03";
+ power-isa-b; // Base
+ power-isa-e; // Embedded
+ power-isa-atb; // Alternate Time Base
+ power-isa-cs; // Cache Specification
+ power-isa-e.le; // Embedded.Little-Endian
+ power-isa-e.pm; // Embedded.Performance Monitor
+ power-isa-ecl; // Embedded Cache Locking
+ power-isa-mmc; // Memory Coherence
+ power-isa-sp; // Signal Processing Engine
+ power-isa-sp.fs; // SPE.Embedded Float Scalar Single
+ power-isa-sp.fv; // SPE.Embedded Float Vector
+ mmu-type = "power-embedded";
+ };
+};
diff --git a/arch/powerpc/boot/dts/fsl/mpc8540ads.dts b/arch/powerpc/boot/dts/fsl/mpc8540ads.dts
index 18a8851..e03ae13 100644
--- a/arch/powerpc/boot/dts/fsl/mpc8540ads.dts
+++ b/arch/powerpc/boot/dts/fsl/mpc8540ads.dts
@@ -7,7 +7,7 @@
/dts-v1/;
-/include/ "e500v2_power_isa.dtsi"
+/include/ "e500v1_power_isa.dtsi"
/ {
model = "MPC8540ADS";
diff --git a/arch/powerpc/boot/dts/fsl/mpc8541cds.dts b/arch/powerpc/boot/dts/fsl/mpc8541cds.dts
index ac381e7..a2a6c5c 100644
--- a/arch/powerpc/boot/dts/fsl/mpc8541cds.dts
+++ b/arch/powerpc/boot/dts/fsl/mpc8541cds.dts
@@ -7,7 +7,7 @@
/dts-v1/;
-/include/ "e500v2_power_isa.dtsi"
+/include/ "e500v1_power_isa.dtsi"
/ {
model = "MPC8541CDS";
diff --git a/arch/powerpc/boot/dts/fsl/mpc8555cds.dts b/arch/powerpc/boot/dts/fsl/mpc8555cds.dts
index 9f58db2..901b6ff 100644
--- a/arch/powerpc/boot/dts/fsl/mpc8555cds.dts
+++ b/arch/powerpc/boot/dts/fsl/mpc8555cds.dts
@@ -7,7 +7,7 @@
/dts-v1/;
-/include/ "e500v2_power_isa.dtsi"
+/include/ "e500v1_power_isa.dtsi"
/ {
model = "MPC8555CDS";
diff --git a/arch/powerpc/boot/dts/fsl/mpc8560ads.dts b/arch/powerpc/boot/dts/fsl/mpc8560ads.dts
index a24722c..c2f9aea 100644
--- a/arch/powerpc/boot/dts/fsl/mpc8560ads.dts
+++ b/arch/powerpc/boot/dts/fsl/mpc8560ads.dts
@@ -7,7 +7,7 @@
/dts-v1/;
-/include/ "e500v2_power_isa.dtsi"
+/include/ "e500v1_power_isa.dtsi"
/ {
model = "MPC8560ADS";
diff --git a/arch/powerpc/boot/dts/fsl/t1040rdb-rev-a.dts b/arch/powerpc/boot/dts/fsl/t1040rdb-rev-a.dts
new file mode 100644
index 0000000..73f8c99
--- /dev/null
+++ b/arch/powerpc/boot/dts/fsl/t1040rdb-rev-a.dts
@@ -0,0 +1,30 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+/*
+ * T1040RDB-REV-A Device Tree Source
+ *
+ * Copyright 2014 - 2015 Freescale Semiconductor Inc.
+ *
+ */
+
+#include "t1040rdb.dts"
+
+/ {
+ model = "fsl,T1040RDB-REV-A";
+ compatible = "fsl,T1040RDB-REV-A";
+};
+
+&seville_port0 {
+ label = "ETH5";
+};
+
+&seville_port2 {
+ label = "ETH7";
+};
+
+&seville_port4 {
+ label = "ETH9";
+};
+
+&seville_port6 {
+ label = "ETH11";
+};
diff --git a/arch/powerpc/boot/dts/fsl/t1040rdb.dts b/arch/powerpc/boot/dts/fsl/t1040rdb.dts
index af0c8a6..b6733e7 100644
--- a/arch/powerpc/boot/dts/fsl/t1040rdb.dts
+++ b/arch/powerpc/boot/dts/fsl/t1040rdb.dts
@@ -119,7 +119,7 @@
managed = "in-band-status";
phy-handle = <&phy_qsgmii_0>;
phy-mode = "qsgmii";
- label = "ETH5";
+ label = "ETH3";
status = "okay";
};
@@ -135,7 +135,7 @@
managed = "in-band-status";
phy-handle = <&phy_qsgmii_2>;
phy-mode = "qsgmii";
- label = "ETH7";
+ label = "ETH5";
status = "okay";
};
@@ -151,7 +151,7 @@
managed = "in-band-status";
phy-handle = <&phy_qsgmii_4>;
phy-mode = "qsgmii";
- label = "ETH9";
+ label = "ETH7";
status = "okay";
};
@@ -167,7 +167,7 @@
managed = "in-band-status";
phy-handle = <&phy_qsgmii_6>;
phy-mode = "qsgmii";
- label = "ETH11";
+ label = "ETH9";
status = "okay";
};
diff --git a/arch/powerpc/boot/dts/fsl/t104xrdb.dtsi b/arch/powerpc/boot/dts/fsl/t104xrdb.dtsi
index 099a598..bfe1ed5 100644
--- a/arch/powerpc/boot/dts/fsl/t104xrdb.dtsi
+++ b/arch/powerpc/boot/dts/fsl/t104xrdb.dtsi
@@ -139,12 +139,12 @@
fman@400000 {
ethernet@e6000 {
phy-handle = <&phy_rgmii_0>;
- phy-connection-type = "rgmii";
+ phy-connection-type = "rgmii-id";
};
ethernet@e8000 {
phy-handle = <&phy_rgmii_1>;
- phy-connection-type = "rgmii";
+ phy-connection-type = "rgmii-id";
};
mdio0: mdio@fc000 {
diff --git a/arch/powerpc/include/asm/bpf_perf_event.h b/arch/powerpc/include/asm/bpf_perf_event.h
new file mode 100644
index 0000000..e8a7b4f
--- /dev/null
+++ b/arch/powerpc/include/asm/bpf_perf_event.h
@@ -0,0 +1,9 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef _ASM_POWERPC_BPF_PERF_EVENT_H
+#define _ASM_POWERPC_BPF_PERF_EVENT_H
+
+#include <asm/ptrace.h>
+
+typedef struct user_pt_regs bpf_user_pt_regs_t;
+
+#endif /* _ASM_POWERPC_BPF_PERF_EVENT_H */
diff --git a/arch/powerpc/include/asm/ftrace.h b/arch/powerpc/include/asm/ftrace.h
index bc76970..e647dfc 100644
--- a/arch/powerpc/include/asm/ftrace.h
+++ b/arch/powerpc/include/asm/ftrace.h
@@ -96,7 +96,7 @@
#endif /* PPC64_ELF_ABI_v1 */
#endif /* CONFIG_FTRACE_SYSCALLS */
-#ifdef CONFIG_PPC64
+#if defined(CONFIG_PPC64) && defined(CONFIG_FUNCTION_TRACER)
#include <asm/paca.h>
static inline void this_cpu_disable_ftrace(void)
@@ -120,11 +120,13 @@
return get_paca()->ftrace_enabled;
}
+void ftrace_free_init_tramp(void);
#else /* CONFIG_PPC64 */
static inline void this_cpu_disable_ftrace(void) { }
static inline void this_cpu_enable_ftrace(void) { }
static inline void this_cpu_set_ftrace_enabled(u8 ftrace_enabled) { }
static inline u8 this_cpu_get_ftrace_enabled(void) { return 1; }
+static inline void ftrace_free_init_tramp(void) { }
#endif /* CONFIG_PPC64 */
#endif /* !__ASSEMBLY__ */
diff --git a/arch/powerpc/include/asm/io.h b/arch/powerpc/include/asm/io.h
index 5863596..0182b29 100644
--- a/arch/powerpc/include/asm/io.h
+++ b/arch/powerpc/include/asm/io.h
@@ -344,25 +344,37 @@
*/
static inline void __raw_rm_writeb(u8 val, volatile void __iomem *paddr)
{
- __asm__ __volatile__("stbcix %0,0,%1"
+ __asm__ __volatile__(".machine push; \
+ .machine power6; \
+ stbcix %0,0,%1; \
+ .machine pop;"
: : "r" (val), "r" (paddr) : "memory");
}
static inline void __raw_rm_writew(u16 val, volatile void __iomem *paddr)
{
- __asm__ __volatile__("sthcix %0,0,%1"
+ __asm__ __volatile__(".machine push; \
+ .machine power6; \
+ sthcix %0,0,%1; \
+ .machine pop;"
: : "r" (val), "r" (paddr) : "memory");
}
static inline void __raw_rm_writel(u32 val, volatile void __iomem *paddr)
{
- __asm__ __volatile__("stwcix %0,0,%1"
+ __asm__ __volatile__(".machine push; \
+ .machine power6; \
+ stwcix %0,0,%1; \
+ .machine pop;"
: : "r" (val), "r" (paddr) : "memory");
}
static inline void __raw_rm_writeq(u64 val, volatile void __iomem *paddr)
{
- __asm__ __volatile__("stdcix %0,0,%1"
+ __asm__ __volatile__(".machine push; \
+ .machine power6; \
+ stdcix %0,0,%1; \
+ .machine pop;"
: : "r" (val), "r" (paddr) : "memory");
}
@@ -374,7 +386,10 @@
static inline u8 __raw_rm_readb(volatile void __iomem *paddr)
{
u8 ret;
- __asm__ __volatile__("lbzcix %0,0, %1"
+ __asm__ __volatile__(".machine push; \
+ .machine power6; \
+ lbzcix %0,0, %1; \
+ .machine pop;"
: "=r" (ret) : "r" (paddr) : "memory");
return ret;
}
@@ -382,7 +397,10 @@
static inline u16 __raw_rm_readw(volatile void __iomem *paddr)
{
u16 ret;
- __asm__ __volatile__("lhzcix %0,0, %1"
+ __asm__ __volatile__(".machine push; \
+ .machine power6; \
+ lhzcix %0,0, %1; \
+ .machine pop;"
: "=r" (ret) : "r" (paddr) : "memory");
return ret;
}
@@ -390,7 +408,10 @@
static inline u32 __raw_rm_readl(volatile void __iomem *paddr)
{
u32 ret;
- __asm__ __volatile__("lwzcix %0,0, %1"
+ __asm__ __volatile__(".machine push; \
+ .machine power6; \
+ lwzcix %0,0, %1; \
+ .machine pop;"
: "=r" (ret) : "r" (paddr) : "memory");
return ret;
}
@@ -398,7 +419,10 @@
static inline u64 __raw_rm_readq(volatile void __iomem *paddr)
{
u64 ret;
- __asm__ __volatile__("ldcix %0,0, %1"
+ __asm__ __volatile__(".machine push; \
+ .machine power6; \
+ ldcix %0,0, %1; \
+ .machine pop;"
: "=r" (ret) : "r" (paddr) : "memory");
return ret;
}
diff --git a/arch/powerpc/include/asm/page.h b/arch/powerpc/include/asm/page.h
index 2546872..03ae544 100644
--- a/arch/powerpc/include/asm/page.h
+++ b/arch/powerpc/include/asm/page.h
@@ -132,7 +132,11 @@
#define virt_to_page(kaddr) pfn_to_page(virt_to_pfn(kaddr))
#define pfn_to_kaddr(pfn) __va((pfn) << PAGE_SHIFT)
-#define virt_addr_valid(kaddr) pfn_valid(virt_to_pfn(kaddr))
+#define virt_addr_valid(vaddr) ({ \
+ unsigned long _addr = (unsigned long)vaddr; \
+ _addr >= PAGE_OFFSET && _addr < (unsigned long)high_memory && \
+ pfn_valid(virt_to_pfn(_addr)); \
+})
/*
* On Book-E parts we need __va to parse the device tree and we can't
@@ -212,6 +216,9 @@
#define __pa(x) ((phys_addr_t)(unsigned long)(x) - VIRT_PHYS_OFFSET)
#else
#ifdef CONFIG_PPC64
+
+#define VIRTUAL_WARN_ON(x) WARN_ON(IS_ENABLED(CONFIG_DEBUG_VIRTUAL) && (x))
+
/*
* gcc miscompiles (unsigned long)(&static_var) - PAGE_OFFSET
* with -mcmodel=medium, so we use & and | instead of - and + on 64-bit.
@@ -219,13 +226,13 @@
*/
#define __va(x) \
({ \
- VIRTUAL_BUG_ON((unsigned long)(x) >= PAGE_OFFSET); \
+ VIRTUAL_WARN_ON((unsigned long)(x) >= PAGE_OFFSET); \
(void *)(unsigned long)((phys_addr_t)(x) | PAGE_OFFSET); \
})
#define __pa(x) \
({ \
- VIRTUAL_BUG_ON((unsigned long)(x) < PAGE_OFFSET); \
+ VIRTUAL_WARN_ON((unsigned long)(x) < PAGE_OFFSET); \
(unsigned long)(x) & 0x0fffffffffffffffUL; \
})
diff --git a/arch/powerpc/include/asm/ppc-opcode.h b/arch/powerpc/include/asm/ppc-opcode.h
index f0c0816..d6a3cd1 100644
--- a/arch/powerpc/include/asm/ppc-opcode.h
+++ b/arch/powerpc/include/asm/ppc-opcode.h
@@ -212,6 +212,7 @@
#define PPC_INST_COPY 0x7c20060c
#define PPC_INST_DCBA 0x7c0005ec
#define PPC_INST_DCBA_MASK 0xfc0007fe
+#define PPC_INST_DSSALL 0x7e00066c
#define PPC_INST_ISEL 0x7c00001e
#define PPC_INST_ISEL_MASK 0xfc00003e
#define PPC_INST_LSWI 0x7c0004aa
@@ -517,6 +518,7 @@
#define PPC_DCBZL(a, b) stringify_in_c(.long PPC_RAW_DCBZL(a, b))
#define PPC_DIVDE(t, a, b) stringify_in_c(.long PPC_RAW_DIVDE(t, a, b))
#define PPC_DIVDEU(t, a, b) stringify_in_c(.long PPC_RAW_DIVDEU(t, a, b))
+#define PPC_DSSALL stringify_in_c(.long PPC_INST_DSSALL)
#define PPC_LQARX(t, a, b, eh) stringify_in_c(.long PPC_RAW_LQARX(t, a, b, eh))
#define PPC_LDARX(t, a, b, eh) stringify_in_c(.long PPC_RAW_LDARX(t, a, b, eh))
#define PPC_LWARX(t, a, b, eh) stringify_in_c(.long PPC_RAW_LWARX(t, a, b, eh))
diff --git a/arch/powerpc/include/asm/thread_info.h b/arch/powerpc/include/asm/thread_info.h
index 46a210b..6de3517 100644
--- a/arch/powerpc/include/asm/thread_info.h
+++ b/arch/powerpc/include/asm/thread_info.h
@@ -14,10 +14,16 @@
#ifdef __KERNEL__
-#if defined(CONFIG_VMAP_STACK) && CONFIG_THREAD_SHIFT < PAGE_SHIFT
+#ifdef CONFIG_KASAN
+#define MIN_THREAD_SHIFT (CONFIG_THREAD_SHIFT + 1)
+#else
+#define MIN_THREAD_SHIFT CONFIG_THREAD_SHIFT
+#endif
+
+#if defined(CONFIG_VMAP_STACK) && MIN_THREAD_SHIFT < PAGE_SHIFT
#define THREAD_SHIFT PAGE_SHIFT
#else
-#define THREAD_SHIFT CONFIG_THREAD_SHIFT
+#define THREAD_SHIFT MIN_THREAD_SHIFT
#endif
#define THREAD_SIZE (1 << THREAD_SHIFT)
diff --git a/arch/powerpc/include/asm/timex.h b/arch/powerpc/include/asm/timex.h
index 9598887..171602f 100644
--- a/arch/powerpc/include/asm/timex.h
+++ b/arch/powerpc/include/asm/timex.h
@@ -19,6 +19,7 @@
{
return mftb();
}
+#define get_cycles get_cycles
#endif /* __KERNEL__ */
#endif /* _ASM_POWERPC_TIMEX_H */
diff --git a/arch/powerpc/include/asm/uaccess.h b/arch/powerpc/include/asm/uaccess.h
index f53bfef..6b808bc 100644
--- a/arch/powerpc/include/asm/uaccess.h
+++ b/arch/powerpc/include/asm/uaccess.h
@@ -229,8 +229,11 @@
*/
#define __get_user_atomic_128_aligned(kaddr, uaddr, err) \
__asm__ __volatile__( \
+ ".machine push\n" \
+ ".machine altivec\n" \
"1: lvx 0,0,%1 # get user\n" \
" stvx 0,0,%2 # put kernel\n" \
+ ".machine pop\n" \
"2:\n" \
".section .fixup,\"ax\"\n" \
"3: li %0,%3\n" \
diff --git a/arch/powerpc/include/asm/vas.h b/arch/powerpc/include/asm/vas.h
index e33f80b..47062b4 100644
--- a/arch/powerpc/include/asm/vas.h
+++ b/arch/powerpc/include/asm/vas.h
@@ -52,7 +52,7 @@
* Receive window attributes specified by the (in-kernel) owner of window.
*/
struct vas_rx_win_attr {
- void *rx_fifo;
+ u64 rx_fifo;
int rx_fifo_size;
int wcreds_max;
diff --git a/arch/powerpc/include/uapi/asm/bpf_perf_event.h b/arch/powerpc/include/uapi/asm/bpf_perf_event.h
deleted file mode 100644
index 5e1e648..0000000
--- a/arch/powerpc/include/uapi/asm/bpf_perf_event.h
+++ /dev/null
@@ -1,9 +0,0 @@
-/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
-#ifndef _UAPI__ASM_BPF_PERF_EVENT_H__
-#define _UAPI__ASM_BPF_PERF_EVENT_H__
-
-#include <asm/ptrace.h>
-
-typedef struct user_pt_regs bpf_user_pt_regs_t;
-
-#endif /* _UAPI__ASM_BPF_PERF_EVENT_H__ */
diff --git a/arch/powerpc/kernel/Makefile b/arch/powerpc/kernel/Makefile
index 376104c..db2bdc4 100644
--- a/arch/powerpc/kernel/Makefile
+++ b/arch/powerpc/kernel/Makefile
@@ -20,6 +20,7 @@
CFLAGS_prom_init.o += -fno-stack-protector
CFLAGS_prom_init.o += -DDISABLE_BRANCH_PROFILING
CFLAGS_prom_init.o += -ffreestanding
+CFLAGS_prom_init.o += $(call cc-option, -ftrivial-auto-var-init=uninitialized)
ifdef CONFIG_FUNCTION_TRACER
# Do not trace early boot code
diff --git a/arch/powerpc/kernel/fadump.c b/arch/powerpc/kernel/fadump.c
index c3bb800..1a5ba26 100644
--- a/arch/powerpc/kernel/fadump.c
+++ b/arch/powerpc/kernel/fadump.c
@@ -861,7 +861,6 @@
sizeof(struct fadump_memory_range));
return 0;
}
-
static inline int fadump_add_mem_range(struct fadump_mrange_info *mrange_info,
u64 base, u64 end)
{
@@ -880,7 +879,12 @@
start = mem_ranges[mrange_info->mem_range_cnt - 1].base;
size = mem_ranges[mrange_info->mem_range_cnt - 1].size;
- if ((start + size) == base)
+ /*
+ * Boot memory area needs separate PT_LOAD segment(s) as it
+ * is moved to a different location at the time of crash.
+ * So, fold only if the region is not boot memory area.
+ */
+ if ((start + size) == base && start >= fw_dump.boot_mem_top)
is_adjacent = true;
}
if (!is_adjacent) {
diff --git a/arch/powerpc/kernel/idle.c b/arch/powerpc/kernel/idle.c
index 1f83553..77cd4c5 100644
--- a/arch/powerpc/kernel/idle.c
+++ b/arch/powerpc/kernel/idle.c
@@ -37,7 +37,7 @@
{
ppc_md.power_save = NULL;
cpuidle_disable = IDLE_POWERSAVE_OFF;
- return 0;
+ return 1;
}
__setup("powersave=off", powersave_off);
@@ -82,7 +82,7 @@
return;
if (cpu_has_feature(CPU_FTR_ALTIVEC))
- asm volatile("DSSALL ; sync" ::: "memory");
+ asm volatile(PPC_DSSALL " ; sync" ::: "memory");
power4_idle_nap();
diff --git a/arch/powerpc/kernel/idle_6xx.S b/arch/powerpc/kernel/idle_6xx.S
index 69df840..315e5e2 100644
--- a/arch/powerpc/kernel/idle_6xx.S
+++ b/arch/powerpc/kernel/idle_6xx.S
@@ -129,7 +129,7 @@
END_FTR_SECTION_IFCLR(CPU_FTR_NO_DPM)
mtspr SPRN_HID0,r4
BEGIN_FTR_SECTION
- DSSALL
+ PPC_DSSALL
sync
END_FTR_SECTION_IFSET(CPU_FTR_ALTIVEC)
lwz r8,TI_LOCAL_FLAGS(r2) /* set napping bit */
diff --git a/arch/powerpc/kernel/kvm.c b/arch/powerpc/kernel/kvm.c
index 617eba8..d89cf80 100644
--- a/arch/powerpc/kernel/kvm.c
+++ b/arch/powerpc/kernel/kvm.c
@@ -669,7 +669,7 @@
on_each_cpu(kvm_map_magic_page, &features, 1);
/* Quick self-test to see if the mapping works */
- if (!fault_in_pages_readable((const char *)KVM_MAGIC_PAGE, sizeof(u32))) {
+ if (fault_in_pages_readable((const char *)KVM_MAGIC_PAGE, sizeof(u32))) {
kvm_patching_worked = false;
return;
}
diff --git a/arch/powerpc/kernel/l2cr_6xx.S b/arch/powerpc/kernel/l2cr_6xx.S
index 225511d..f2e03ed 100644
--- a/arch/powerpc/kernel/l2cr_6xx.S
+++ b/arch/powerpc/kernel/l2cr_6xx.S
@@ -96,7 +96,7 @@
/* Stop DST streams */
BEGIN_FTR_SECTION
- DSSALL
+ PPC_DSSALL
sync
END_FTR_SECTION_IFSET(CPU_FTR_ALTIVEC)
@@ -292,7 +292,7 @@
isync
/* Stop DST streams */
- DSSALL
+ PPC_DSSALL
sync
/* Get the current enable bit of the L3CR into r4 */
@@ -401,7 +401,7 @@
_GLOBAL(__flush_disable_L1)
/* Stop pending alitvec streams and memory accesses */
BEGIN_FTR_SECTION
- DSSALL
+ PPC_DSSALL
END_FTR_SECTION_IFSET(CPU_FTR_ALTIVEC)
sync
diff --git a/arch/powerpc/kernel/pci-common.c b/arch/powerpc/kernel/pci-common.c
index 7920559..cfc4614 100644
--- a/arch/powerpc/kernel/pci-common.c
+++ b/arch/powerpc/kernel/pci-common.c
@@ -66,23 +66,35 @@
pci_dma_ops = dma_ops;
}
-/*
- * This function should run under locking protection, specifically
- * hose_spinlock.
- */
static int get_phb_number(struct device_node *dn)
{
int ret, phb_id = -1;
- u32 prop_32;
u64 prop;
/*
* Try fixed PHB numbering first, by checking archs and reading
- * the respective device-tree properties. Firstly, try powernv by
- * reading "ibm,opal-phbid", only present in OPAL environment.
+ * the respective device-tree properties. Firstly, try reading
+ * standard "linux,pci-domain", then try reading "ibm,opal-phbid"
+ * (only present in powernv OPAL environment), then try device-tree
+ * alias and as the last try to use lower bits of "reg" property.
*/
- ret = of_property_read_u64(dn, "ibm,opal-phbid", &prop);
+ ret = of_get_pci_domain_nr(dn);
+ if (ret >= 0) {
+ prop = ret;
+ ret = 0;
+ }
+ if (ret)
+ ret = of_property_read_u64(dn, "ibm,opal-phbid", &prop);
+
if (ret) {
+ ret = of_alias_get_id(dn, "pci");
+ if (ret >= 0) {
+ prop = ret;
+ ret = 0;
+ }
+ }
+ if (ret) {
+ u32 prop_32;
ret = of_property_read_u32_index(dn, "reg", 1, &prop_32);
prop = prop_32;
}
@@ -90,18 +102,20 @@
if (!ret)
phb_id = (int)(prop & (MAX_PHBS - 1));
+ spin_lock(&hose_spinlock);
+
/* We need to be sure to not use the same PHB number twice. */
if ((phb_id >= 0) && !test_and_set_bit(phb_id, phb_bitmap))
- return phb_id;
+ goto out_unlock;
- /*
- * If not pseries nor powernv, or if fixed PHB numbering tried to add
- * the same PHB number twice, then fallback to dynamic PHB numbering.
- */
+ /* If everything fails then fallback to dynamic PHB numbering. */
phb_id = find_first_zero_bit(phb_bitmap, MAX_PHBS);
BUG_ON(phb_id >= MAX_PHBS);
set_bit(phb_id, phb_bitmap);
+out_unlock:
+ spin_unlock(&hose_spinlock);
+
return phb_id;
}
@@ -112,10 +126,13 @@
phb = zalloc_maybe_bootmem(sizeof(struct pci_controller), GFP_KERNEL);
if (phb == NULL)
return NULL;
- spin_lock(&hose_spinlock);
+
phb->global_number = get_phb_number(dev);
+
+ spin_lock(&hose_spinlock);
list_add_tail(&phb->list_node, &hose_list);
spin_unlock(&hose_spinlock);
+
phb->dn = dev;
phb->is_dynamic = slab_is_available();
#ifdef CONFIG_PPC64
diff --git a/arch/powerpc/kernel/pci_dn.c b/arch/powerpc/kernel/pci_dn.c
index e99b7c5..b173ba3 100644
--- a/arch/powerpc/kernel/pci_dn.c
+++ b/arch/powerpc/kernel/pci_dn.c
@@ -330,6 +330,7 @@
INIT_LIST_HEAD(&pdn->list);
parent = of_get_parent(dn);
pdn->parent = parent ? PCI_DN(parent) : NULL;
+ of_node_put(parent);
if (pdn->parent)
list_add_tail(&pdn->list, &pdn->parent->child_list);
diff --git a/arch/powerpc/kernel/process.c b/arch/powerpc/kernel/process.c
index 3064694..c43cc26 100644
--- a/arch/powerpc/kernel/process.c
+++ b/arch/powerpc/kernel/process.c
@@ -1800,7 +1800,7 @@
tm_reclaim_current(0);
#endif
- memset(regs->gpr, 0, sizeof(regs->gpr));
+ memset(®s->gpr[1], 0, sizeof(regs->gpr) - sizeof(regs->gpr[0]));
regs->ctr = 0;
regs->link = 0;
regs->xer = 0;
@@ -2108,12 +2108,12 @@
return 0;
do {
- sp = *(unsigned long *)sp;
+ sp = READ_ONCE_NOCHECK(*(unsigned long *)sp);
if (!validate_sp(sp, p, STACK_FRAME_OVERHEAD) ||
p->state == TASK_RUNNING)
return 0;
if (count > 0) {
- ip = ((unsigned long *)sp)[STACK_FRAME_LR_SAVE];
+ ip = READ_ONCE_NOCHECK(((unsigned long *)sp)[STACK_FRAME_LR_SAVE]);
if (!in_sched_functions(ip))
return ip;
}
diff --git a/arch/powerpc/kernel/prom.c b/arch/powerpc/kernel/prom.c
index 7a14a09..1dfb4c2 100644
--- a/arch/powerpc/kernel/prom.c
+++ b/arch/powerpc/kernel/prom.c
@@ -750,6 +750,13 @@
of_scan_flat_dt(early_init_dt_scan_root, NULL);
of_scan_flat_dt(early_init_dt_scan_memory_ppc, NULL);
+ /*
+ * As generic code authors expect to be able to use static keys
+ * in early_param() handlers, we initialize the static keys just
+ * before parsing early params (it's fine to call jump_label_init()
+ * more than once).
+ */
+ jump_label_init();
parse_early_param();
/* make sure we've parsed cmdline for mem= before this */
diff --git a/arch/powerpc/kernel/prom_init_check.sh b/arch/powerpc/kernel/prom_init_check.sh
index b183ab9..dfa5f72 100644
--- a/arch/powerpc/kernel/prom_init_check.sh
+++ b/arch/powerpc/kernel/prom_init_check.sh
@@ -13,7 +13,7 @@
# If you really need to reference something from prom_init.o add
# it to the list below:
-grep "^CONFIG_KASAN=y$" .config >/dev/null
+grep "^CONFIG_KASAN=y$" ${KCONFIG_CONFIG} >/dev/null
if [ $? -eq 0 ]
then
MEM_FUNCS="__memcpy __memset"
diff --git a/arch/powerpc/kernel/ptrace/ptrace.c b/arch/powerpc/kernel/ptrace/ptrace.c
index f6e51be..9ea9ee5 100644
--- a/arch/powerpc/kernel/ptrace/ptrace.c
+++ b/arch/powerpc/kernel/ptrace/ptrace.c
@@ -75,8 +75,13 @@
flush_fp_to_thread(child);
if (fpidx < (PT_FPSCR - PT_FPR0))
- memcpy(&tmp, &child->thread.TS_FPR(fpidx),
- sizeof(long));
+ if (IS_ENABLED(CONFIG_PPC32)) {
+ // On 32-bit the index we are passed refers to 32-bit words
+ tmp = ((u32 *)child->thread.fp_state.fpr)[fpidx];
+ } else {
+ memcpy(&tmp, &child->thread.TS_FPR(fpidx),
+ sizeof(long));
+ }
else
tmp = child->thread.fp_state.fpscr;
}
@@ -108,8 +113,13 @@
flush_fp_to_thread(child);
if (fpidx < (PT_FPSCR - PT_FPR0))
- memcpy(&child->thread.TS_FPR(fpidx), &data,
- sizeof(long));
+ if (IS_ENABLED(CONFIG_PPC32)) {
+ // On 32-bit the index we are passed refers to 32-bit words
+ ((u32 *)child->thread.fp_state.fpr)[fpidx] = data;
+ } else {
+ memcpy(&child->thread.TS_FPR(fpidx), &data,
+ sizeof(long));
+ }
else
child->thread.fp_state.fpscr = data;
ret = 0;
@@ -478,4 +488,7 @@
* real registers.
*/
BUILD_BUG_ON(PT_DSCR < sizeof(struct user_pt_regs) / sizeof(unsigned long));
+
+ // ptrace_get/put_fpr() rely on PPC32 and VSX being incompatible
+ BUILD_BUG_ON(IS_ENABLED(CONFIG_PPC32) && IS_ENABLED(CONFIG_VSX));
}
diff --git a/arch/powerpc/kernel/rtas.c b/arch/powerpc/kernel/rtas.c
index cccb32c..bf96205 100644
--- a/arch/powerpc/kernel/rtas.c
+++ b/arch/powerpc/kernel/rtas.c
@@ -1040,7 +1040,7 @@
{ "get-time-of-day", -1, -1, -1, -1, -1 },
{ "ibm,get-vpd", -1, 0, -1, 1, 2 },
{ "ibm,lpar-perftools", -1, 2, 3, -1, -1 },
- { "ibm,platform-dump", -1, 4, 5, -1, -1 },
+ { "ibm,platform-dump", -1, 4, 5, -1, -1 }, /* Special cased */
{ "ibm,read-slot-reset-state", -1, -1, -1, -1, -1 },
{ "ibm,scan-log-dump", -1, 0, 1, -1, -1 },
{ "ibm,set-dynamic-indicator", -1, 2, -1, -1, -1 },
@@ -1087,6 +1087,15 @@
size = 1;
end = base + size - 1;
+
+ /*
+ * Special case for ibm,platform-dump - NULL buffer
+ * address is used to indicate end of dump processing
+ */
+ if (!strcmp(f->name, "ibm,platform-dump") &&
+ base == 0)
+ return false;
+
if (!in_rmo_buf(base, end))
goto err;
}
@@ -1296,6 +1305,12 @@
entryp = of_get_flat_dt_prop(node, "linux,rtas-entry", NULL);
sizep = of_get_flat_dt_prop(node, "rtas-size", NULL);
+#ifdef CONFIG_PPC64
+ /* need this feature to decide the crashkernel offset */
+ if (of_get_flat_dt_prop(node, "ibm,hypertas-functions", NULL))
+ powerpc_firmware_features |= FW_FEATURE_LPAR;
+#endif
+
if (basep && entryp && sizep) {
rtas.base = *basep;
rtas.entry = *entryp;
diff --git a/arch/powerpc/kernel/secvar-sysfs.c b/arch/powerpc/kernel/secvar-sysfs.c
index a0a78ab..1ee4640 100644
--- a/arch/powerpc/kernel/secvar-sysfs.c
+++ b/arch/powerpc/kernel/secvar-sysfs.c
@@ -26,15 +26,18 @@
const char *format;
node = of_find_compatible_node(NULL, NULL, "ibm,secvar-backend");
- if (!of_device_is_available(node))
- return -ENODEV;
+ if (!of_device_is_available(node)) {
+ rc = -ENODEV;
+ goto out;
+ }
rc = of_property_read_string(node, "format", &format);
if (rc)
- return rc;
+ goto out;
rc = sprintf(buf, "%s\n", format);
+out:
of_node_put(node);
return rc;
diff --git a/arch/powerpc/kernel/swsusp_32.S b/arch/powerpc/kernel/swsusp_32.S
index f73f4d7..e0cbd63 100644
--- a/arch/powerpc/kernel/swsusp_32.S
+++ b/arch/powerpc/kernel/swsusp_32.S
@@ -181,7 +181,7 @@
#ifdef CONFIG_ALTIVEC
/* Stop pending alitvec streams and memory accesses */
BEGIN_FTR_SECTION
- DSSALL
+ PPC_DSSALL
END_FTR_SECTION_IFSET(CPU_FTR_ALTIVEC)
#endif
sync
diff --git a/arch/powerpc/kernel/swsusp_asm64.S b/arch/powerpc/kernel/swsusp_asm64.S
index 6d31898..068a268 100644
--- a/arch/powerpc/kernel/swsusp_asm64.S
+++ b/arch/powerpc/kernel/swsusp_asm64.S
@@ -142,7 +142,7 @@
_GLOBAL(swsusp_arch_resume)
/* Stop pending alitvec streams and memory accesses */
BEGIN_FTR_SECTION
- DSSALL
+ PPC_DSSALL
END_FTR_SECTION_IFSET(CPU_FTR_ALTIVEC)
sync
diff --git a/arch/powerpc/kernel/systbl.S b/arch/powerpc/kernel/systbl.S
index d34276f..b0a3063 100644
--- a/arch/powerpc/kernel/systbl.S
+++ b/arch/powerpc/kernel/systbl.S
@@ -18,6 +18,7 @@
.p2align 3
#define __SYSCALL(nr, entry) .8byte entry
#else
+ .p2align 2
#define __SYSCALL(nr, entry) .long entry
#endif
diff --git a/arch/powerpc/kernel/trace/ftrace.c b/arch/powerpc/kernel/trace/ftrace.c
index 42761eb..d24aea4 100644
--- a/arch/powerpc/kernel/trace/ftrace.c
+++ b/arch/powerpc/kernel/trace/ftrace.c
@@ -336,9 +336,7 @@
/* Is this a known long jump tramp? */
for (i = 0; i < NUM_FTRACE_TRAMPS; i++)
- if (!ftrace_tramps[i])
- break;
- else if (ftrace_tramps[i] == tramp)
+ if (ftrace_tramps[i] == tramp)
return 0;
/* Is this a known plt tramp? */
@@ -882,6 +880,17 @@
extern unsigned int ftrace_tramp_text[], ftrace_tramp_init[];
+void ftrace_free_init_tramp(void)
+{
+ int i;
+
+ for (i = 0; i < NUM_FTRACE_TRAMPS && ftrace_tramps[i]; i++)
+ if (ftrace_tramps[i] == (unsigned long)ftrace_tramp_init) {
+ ftrace_tramps[i] = 0;
+ return;
+ }
+}
+
int __init ftrace_dyn_arch_init(void)
{
int i;
diff --git a/arch/powerpc/kexec/core.c b/arch/powerpc/kexec/core.c
index 56da5eb..80c79cb 100644
--- a/arch/powerpc/kexec/core.c
+++ b/arch/powerpc/kexec/core.c
@@ -147,11 +147,18 @@
if (!crashk_res.start) {
#ifdef CONFIG_PPC64
/*
- * On 64bit we split the RMO in half but cap it at half of
- * a small SLB (128MB) since the crash kernel needs to place
- * itself and some stacks to be in the first segment.
+ * On the LPAR platform place the crash kernel to mid of
+ * RMA size (512MB or more) to ensure the crash kernel
+ * gets enough space to place itself and some stack to be
+ * in the first segment. At the same time normal kernel
+ * also get enough space to allocate memory for essential
+ * system resource in the first segment. Keep the crash
+ * kernel starts at 128MB offset on other platforms.
*/
- crashk_res.start = min(0x8000000ULL, (ppc64_rma_size / 2));
+ if (firmware_has_feature(FW_FEATURE_LPAR))
+ crashk_res.start = ppc64_rma_size / 2;
+ else
+ crashk_res.start = min(0x8000000ULL, (ppc64_rma_size / 2));
#else
crashk_res.start = KDUMP_KERNELBASE;
#endif
diff --git a/arch/powerpc/kvm/book3s_64_vio.c b/arch/powerpc/kvm/book3s_64_vio.c
index 8da93fd..c640053 100644
--- a/arch/powerpc/kvm/book3s_64_vio.c
+++ b/arch/powerpc/kvm/book3s_64_vio.c
@@ -421,13 +421,19 @@
tbl[idx % TCES_PER_PAGE] = tce;
}
-static void kvmppc_clear_tce(struct mm_struct *mm, struct iommu_table *tbl,
- unsigned long entry)
+static void kvmppc_clear_tce(struct mm_struct *mm, struct kvmppc_spapr_tce_table *stt,
+ struct iommu_table *tbl, unsigned long entry)
{
- unsigned long hpa = 0;
- enum dma_data_direction dir = DMA_NONE;
+ unsigned long i;
+ unsigned long subpages = 1ULL << (stt->page_shift - tbl->it_page_shift);
+ unsigned long io_entry = entry << (stt->page_shift - tbl->it_page_shift);
- iommu_tce_xchg_no_kill(mm, tbl, entry, &hpa, &dir);
+ for (i = 0; i < subpages; ++i) {
+ unsigned long hpa = 0;
+ enum dma_data_direction dir = DMA_NONE;
+
+ iommu_tce_xchg_no_kill(mm, tbl, io_entry + i, &hpa, &dir);
+ }
}
static long kvmppc_tce_iommu_mapped_dec(struct kvm *kvm,
@@ -486,6 +492,8 @@
break;
}
+ iommu_tce_kill(tbl, io_entry, subpages);
+
return ret;
}
@@ -545,6 +553,8 @@
break;
}
+ iommu_tce_kill(tbl, io_entry, subpages);
+
return ret;
}
@@ -591,10 +601,9 @@
ret = kvmppc_tce_iommu_map(vcpu->kvm, stt, stit->tbl,
entry, ua, dir);
- iommu_tce_kill(stit->tbl, entry, 1);
if (ret != H_SUCCESS) {
- kvmppc_clear_tce(vcpu->kvm->mm, stit->tbl, entry);
+ kvmppc_clear_tce(vcpu->kvm->mm, stt, stit->tbl, entry);
goto unlock_exit;
}
}
@@ -670,13 +679,13 @@
*/
if (get_user(tce, tces + i)) {
ret = H_TOO_HARD;
- goto invalidate_exit;
+ goto unlock_exit;
}
tce = be64_to_cpu(tce);
if (kvmppc_tce_to_ua(vcpu->kvm, tce, &ua)) {
ret = H_PARAMETER;
- goto invalidate_exit;
+ goto unlock_exit;
}
list_for_each_entry_lockless(stit, &stt->iommu_tables, next) {
@@ -685,19 +694,15 @@
iommu_tce_direction(tce));
if (ret != H_SUCCESS) {
- kvmppc_clear_tce(vcpu->kvm->mm, stit->tbl,
- entry);
- goto invalidate_exit;
+ kvmppc_clear_tce(vcpu->kvm->mm, stt, stit->tbl,
+ entry + i);
+ goto unlock_exit;
}
}
kvmppc_tce_put(stt, entry + i, tce);
}
-invalidate_exit:
- list_for_each_entry_lockless(stit, &stt->iommu_tables, next)
- iommu_tce_kill(stit->tbl, entry, npages);
-
unlock_exit:
srcu_read_unlock(&vcpu->kvm->srcu, idx);
@@ -736,20 +741,16 @@
continue;
if (ret == H_TOO_HARD)
- goto invalidate_exit;
+ return ret;
WARN_ON_ONCE(1);
- kvmppc_clear_tce(vcpu->kvm->mm, stit->tbl, entry);
+ kvmppc_clear_tce(vcpu->kvm->mm, stt, stit->tbl, entry + i);
}
}
for (i = 0; i < npages; ++i, ioba += (1ULL << stt->page_shift))
kvmppc_tce_put(stt, ioba >> stt->page_shift, tce_value);
-invalidate_exit:
- list_for_each_entry_lockless(stit, &stt->iommu_tables, next)
- iommu_tce_kill(stit->tbl, ioba >> stt->page_shift, npages);
-
return ret;
}
EXPORT_SYMBOL_GPL(kvmppc_h_stuff_tce);
diff --git a/arch/powerpc/kvm/book3s_64_vio_hv.c b/arch/powerpc/kvm/book3s_64_vio_hv.c
index e5ba96c..57af53a 100644
--- a/arch/powerpc/kvm/book3s_64_vio_hv.c
+++ b/arch/powerpc/kvm/book3s_64_vio_hv.c
@@ -247,13 +247,19 @@
tbl->it_ops->tce_kill(tbl, entry, pages, true);
}
-static void kvmppc_rm_clear_tce(struct kvm *kvm, struct iommu_table *tbl,
- unsigned long entry)
+static void kvmppc_rm_clear_tce(struct kvm *kvm, struct kvmppc_spapr_tce_table *stt,
+ struct iommu_table *tbl, unsigned long entry)
{
- unsigned long hpa = 0;
- enum dma_data_direction dir = DMA_NONE;
+ unsigned long i;
+ unsigned long subpages = 1ULL << (stt->page_shift - tbl->it_page_shift);
+ unsigned long io_entry = entry << (stt->page_shift - tbl->it_page_shift);
- iommu_tce_xchg_no_kill_rm(kvm->mm, tbl, entry, &hpa, &dir);
+ for (i = 0; i < subpages; ++i) {
+ unsigned long hpa = 0;
+ enum dma_data_direction dir = DMA_NONE;
+
+ iommu_tce_xchg_no_kill_rm(kvm->mm, tbl, io_entry + i, &hpa, &dir);
+ }
}
static long kvmppc_rm_tce_iommu_mapped_dec(struct kvm *kvm,
@@ -316,6 +322,8 @@
break;
}
+ iommu_tce_kill_rm(tbl, io_entry, subpages);
+
return ret;
}
@@ -379,6 +387,8 @@
break;
}
+ iommu_tce_kill_rm(tbl, io_entry, subpages);
+
return ret;
}
@@ -424,10 +434,8 @@
ret = kvmppc_rm_tce_iommu_map(vcpu->kvm, stt,
stit->tbl, entry, ua, dir);
- iommu_tce_kill_rm(stit->tbl, entry, 1);
-
if (ret != H_SUCCESS) {
- kvmppc_rm_clear_tce(vcpu->kvm, stit->tbl, entry);
+ kvmppc_rm_clear_tce(vcpu->kvm, stt, stit->tbl, entry);
return ret;
}
}
@@ -569,7 +577,7 @@
ua = 0;
if (kvmppc_rm_tce_to_ua(vcpu->kvm, tce, &ua)) {
ret = H_PARAMETER;
- goto invalidate_exit;
+ goto unlock_exit;
}
list_for_each_entry_lockless(stit, &stt->iommu_tables, next) {
@@ -578,19 +586,15 @@
iommu_tce_direction(tce));
if (ret != H_SUCCESS) {
- kvmppc_rm_clear_tce(vcpu->kvm, stit->tbl,
- entry);
- goto invalidate_exit;
+ kvmppc_rm_clear_tce(vcpu->kvm, stt, stit->tbl,
+ entry + i);
+ goto unlock_exit;
}
}
kvmppc_rm_tce_put(stt, entry + i, tce);
}
-invalidate_exit:
- list_for_each_entry_lockless(stit, &stt->iommu_tables, next)
- iommu_tce_kill_rm(stit->tbl, entry, npages);
-
unlock_exit:
if (!prereg)
arch_spin_unlock(&kvm->mmu_lock.rlock.raw_lock);
@@ -632,20 +636,16 @@
continue;
if (ret == H_TOO_HARD)
- goto invalidate_exit;
+ return ret;
WARN_ON_ONCE_RM(1);
- kvmppc_rm_clear_tce(vcpu->kvm, stit->tbl, entry);
+ kvmppc_rm_clear_tce(vcpu->kvm, stt, stit->tbl, entry + i);
}
}
for (i = 0; i < npages; ++i, ioba += (1ULL << stt->page_shift))
kvmppc_rm_tce_put(stt, ioba >> stt->page_shift, tce_value);
-invalidate_exit:
- list_for_each_entry_lockless(stit, &stt->iommu_tables, next)
- iommu_tce_kill_rm(stit->tbl, ioba >> stt->page_shift, npages);
-
return ret;
}
diff --git a/arch/powerpc/kvm/book3s_hv.c b/arch/powerpc/kvm/book3s_hv.c
index 527c205..1d25932 100644
--- a/arch/powerpc/kvm/book3s_hv.c
+++ b/arch/powerpc/kvm/book3s_hv.c
@@ -3399,8 +3399,22 @@
kvmppc_set_host_core(pcpu);
+ context_tracking_guest_exit();
+ if (!vtime_accounting_enabled_this_cpu()) {
+ local_irq_enable();
+ /*
+ * Service IRQs here before vtime_account_guest_exit() so any
+ * ticks that occurred while running the guest are accounted to
+ * the guest. If vtime accounting is enabled, accounting uses
+ * TB rather than ticks, so it can be done without enabling
+ * interrupts here, which has the problem that it accounts
+ * interrupt processing overhead to the host.
+ */
+ local_irq_disable();
+ }
+ vtime_account_guest_exit();
+
local_irq_enable();
- guest_exit();
/* Let secondaries go back to the offline loop */
for (i = 0; i < controlled_threads; ++i) {
@@ -4235,8 +4249,22 @@
kvmppc_set_host_core(pcpu);
+ context_tracking_guest_exit();
+ if (!vtime_accounting_enabled_this_cpu()) {
+ local_irq_enable();
+ /*
+ * Service IRQs here before vtime_account_guest_exit() so any
+ * ticks that occurred while running the guest are accounted to
+ * the guest. If vtime accounting is enabled, accounting uses
+ * TB rather than ticks, so it can be done without enabling
+ * interrupts here, which has the problem that it accounts
+ * interrupt processing overhead to the host.
+ */
+ local_irq_disable();
+ }
+ vtime_account_guest_exit();
+
local_irq_enable();
- guest_exit();
cpumask_clear_cpu(pcpu, &kvm->arch.cpu_in_guest);
@@ -5752,8 +5780,11 @@
if (r)
return r;
- if (kvmppc_radix_possible())
+ if (kvmppc_radix_possible()) {
r = kvmppc_radix_init();
+ if (r)
+ return r;
+ }
/*
* POWER9 chips before version 2.02 can't have some threads in
diff --git a/arch/powerpc/kvm/book3s_hv_uvmem.c b/arch/powerpc/kvm/book3s_hv_uvmem.c
index 84e5a2d..3dd58b4 100644
--- a/arch/powerpc/kvm/book3s_hv_uvmem.c
+++ b/arch/powerpc/kvm/book3s_hv_uvmem.c
@@ -359,13 +359,15 @@
static bool kvmppc_next_nontransitioned_gfn(const struct kvm_memory_slot *memslot,
struct kvm *kvm, unsigned long *gfn)
{
- struct kvmppc_uvmem_slot *p;
+ struct kvmppc_uvmem_slot *p = NULL, *iter;
bool ret = false;
unsigned long i;
- list_for_each_entry(p, &kvm->arch.uvmem_pfns, list)
- if (*gfn >= p->base_pfn && *gfn < p->base_pfn + p->nr_pfns)
+ list_for_each_entry(iter, &kvm->arch.uvmem_pfns, list)
+ if (*gfn >= iter->base_pfn && *gfn < iter->base_pfn + iter->nr_pfns) {
+ p = iter;
break;
+ }
if (!p)
return ret;
/*
diff --git a/arch/powerpc/kvm/booke.c b/arch/powerpc/kvm/booke.c
index b1abcb8..75381be 100644
--- a/arch/powerpc/kvm/booke.c
+++ b/arch/powerpc/kvm/booke.c
@@ -1016,7 +1016,21 @@
}
trace_kvm_exit(exit_nr, vcpu);
- guest_exit_irqoff();
+
+ context_tracking_guest_exit();
+ if (!vtime_accounting_enabled_this_cpu()) {
+ local_irq_enable();
+ /*
+ * Service IRQs here before vtime_account_guest_exit() so any
+ * ticks that occurred while running the guest are accounted to
+ * the guest. If vtime accounting is enabled, accounting uses
+ * TB rather than ticks, so it can be done without enabling
+ * interrupts here, which has the problem that it accounts
+ * interrupt processing overhead to the host.
+ */
+ local_irq_disable();
+ }
+ vtime_account_guest_exit();
local_irq_enable();
diff --git a/arch/powerpc/kvm/powerpc.c b/arch/powerpc/kvm/powerpc.c
index 543db91..ef8077a 100644
--- a/arch/powerpc/kvm/powerpc.c
+++ b/arch/powerpc/kvm/powerpc.c
@@ -1500,7 +1500,7 @@
{
enum emulation_result emulated = EMULATE_DONE;
- if (vcpu->arch.mmio_vsx_copy_nums > 2)
+ if (vcpu->arch.mmio_vmx_copy_nums > 2)
return EMULATE_FAIL;
while (vcpu->arch.mmio_vmx_copy_nums) {
@@ -1597,7 +1597,7 @@
unsigned int index = rs & KVM_MMIO_REG_MASK;
enum emulation_result emulated = EMULATE_DONE;
- if (vcpu->arch.mmio_vsx_copy_nums > 2)
+ if (vcpu->arch.mmio_vmx_copy_nums > 2)
return EMULATE_FAIL;
vcpu->arch.io_gpr = rs;
diff --git a/arch/powerpc/lib/sstep.c b/arch/powerpc/lib/sstep.c
index 0edebbb..2d19655 100644
--- a/arch/powerpc/lib/sstep.c
+++ b/arch/powerpc/lib/sstep.c
@@ -108,9 +108,9 @@
{
if (!user_mode(regs))
return 1;
- if (__access_ok(ea, nb))
+ if (access_ok((void __user *)ea, nb))
return 1;
- if (__access_ok(ea, 1))
+ if (access_ok((void __user *)ea, 1))
/* Access overlaps the end of the user region */
regs->dar = TASK_SIZE_MAX - 1;
else
@@ -949,7 +949,10 @@
#define __put_user_asmx(x, addr, err, op, cr) \
__asm__ __volatile__( \
+ ".machine push\n" \
+ ".machine power8\n" \
"1: " op " %2,0,%3\n" \
+ ".machine pop\n" \
" mfcr %1\n" \
"2:\n" \
".section .fixup,\"ax\"\n" \
@@ -962,7 +965,10 @@
#define __get_user_asmx(x, addr, err, op) \
__asm__ __volatile__( \
+ ".machine push\n" \
+ ".machine power8\n" \
"1: "op" %1,0,%2\n" \
+ ".machine pop\n" \
"2:\n" \
".section .fixup,\"ax\"\n" \
"3: li %0,%3\n" \
@@ -3187,7 +3193,7 @@
__put_user_asmx(op->val, ea, err, "stbcx.", cr);
break;
case 2:
- __put_user_asmx(op->val, ea, err, "stbcx.", cr);
+ __put_user_asmx(op->val, ea, err, "sthcx.", cr);
break;
#endif
case 4:
diff --git a/arch/powerpc/math-emu/math_efp.c b/arch/powerpc/math-emu/math_efp.c
index 0a05e51..90111c9 100644
--- a/arch/powerpc/math-emu/math_efp.c
+++ b/arch/powerpc/math-emu/math_efp.c
@@ -17,6 +17,7 @@
#include <linux/types.h>
#include <linux/prctl.h>
+#include <linux/module.h>
#include <linux/uaccess.h>
#include <asm/reg.h>
diff --git a/arch/powerpc/mm/book3s64/radix_pgtable.c b/arch/powerpc/mm/book3s64/radix_pgtable.c
index 2959594..ae4ba6a 100644
--- a/arch/powerpc/mm/book3s64/radix_pgtable.c
+++ b/arch/powerpc/mm/book3s64/radix_pgtable.c
@@ -997,15 +997,6 @@
pmd = *pmdp;
pmd_clear(pmdp);
- /*
- * pmdp collapse_flush need to ensure that there are no parallel gup
- * walk after this call. This is needed so that we can have stable
- * page ref count when collapsing a page. We don't allow a collapse page
- * if we have gup taken on the page. We can ensure that by sending IPI
- * because gup walk happens with IRQ disabled.
- */
- serialize_against_pte_lookup(vma->vm_mm);
-
radix__flush_tlb_collapsed_pmd(vma->vm_mm, address);
return pmd;
diff --git a/arch/powerpc/mm/kasan/kasan_init_32.c b/arch/powerpc/mm/kasan/kasan_init_32.c
index cf8770b..f3e4d06 100644
--- a/arch/powerpc/mm/kasan/kasan_init_32.c
+++ b/arch/powerpc/mm/kasan/kasan_init_32.c
@@ -83,13 +83,12 @@
kasan_update_early_region(unsigned long k_start, unsigned long k_end, pte_t pte)
{
unsigned long k_cur;
- phys_addr_t pa = __pa(kasan_early_shadow_page);
for (k_cur = k_start; k_cur != k_end; k_cur += PAGE_SIZE) {
pmd_t *pmd = pmd_off_k(k_cur);
pte_t *ptep = pte_offset_kernel(pmd, k_cur);
- if ((pte_val(*ptep) & PTE_RPN_MASK) != pa)
+ if (pte_page(*ptep) != virt_to_page(lm_alias(kasan_early_shadow_page)))
continue;
__set_pte_at(&init_mm, k_cur, ptep, pte, 0);
diff --git a/arch/powerpc/mm/mem.c b/arch/powerpc/mm/mem.c
index 22eb1c7..1ed276d 100644
--- a/arch/powerpc/mm/mem.c
+++ b/arch/powerpc/mm/mem.c
@@ -51,6 +51,7 @@
#include <asm/kasan.h>
#include <asm/svm.h>
#include <asm/mmzone.h>
+#include <asm/ftrace.h>
#include <mm/mmu_decl.h>
@@ -347,6 +348,7 @@
mark_initmem_nx();
init_mem_is_free = true;
free_initmem_default(POISON_FREE_INITMEM);
+ ftrace_free_init_tramp();
}
/**
diff --git a/arch/powerpc/mm/mmu_context.c b/arch/powerpc/mm/mmu_context.c
index 18f20da..64290d3 100644
--- a/arch/powerpc/mm/mmu_context.c
+++ b/arch/powerpc/mm/mmu_context.c
@@ -79,7 +79,7 @@
* context
*/
if (cpu_has_feature(CPU_FTR_ALTIVEC))
- asm volatile ("dssall");
+ asm volatile (PPC_DSSALL);
if (new_on_cpu)
radix_kvm_prefetch_workaround(next);
diff --git a/arch/powerpc/mm/nohash/book3e_pgtable.c b/arch/powerpc/mm/nohash/book3e_pgtable.c
index 77884e2..3d845e0 100644
--- a/arch/powerpc/mm/nohash/book3e_pgtable.c
+++ b/arch/powerpc/mm/nohash/book3e_pgtable.c
@@ -95,8 +95,8 @@
pgdp = pgd_offset_k(ea);
p4dp = p4d_offset(pgdp, ea);
if (p4d_none(*p4dp)) {
- pmdp = early_alloc_pgtable(PMD_TABLE_SIZE);
- p4d_populate(&init_mm, p4dp, pmdp);
+ pudp = early_alloc_pgtable(PUD_TABLE_SIZE);
+ p4d_populate(&init_mm, p4dp, pudp);
}
pudp = pud_offset(p4dp, ea);
if (pud_none(*pudp)) {
@@ -105,7 +105,7 @@
}
pmdp = pmd_offset(pudp, ea);
if (!pmd_present(*pmdp)) {
- ptep = early_alloc_pgtable(PAGE_SIZE);
+ ptep = early_alloc_pgtable(PTE_TABLE_SIZE);
pmd_populate_kernel(&init_mm, pmdp, ptep);
}
ptep = pte_offset_kernel(pmdp, ea);
diff --git a/arch/powerpc/mm/nohash/kaslr_booke.c b/arch/powerpc/mm/nohash/kaslr_booke.c
index 4c74e8a..c555ad9 100644
--- a/arch/powerpc/mm/nohash/kaslr_booke.c
+++ b/arch/powerpc/mm/nohash/kaslr_booke.c
@@ -18,7 +18,6 @@
#include <asm/prom.h>
#include <asm/kdump.h>
#include <mm/mmu_decl.h>
-#include <generated/compile.h>
#include <generated/utsrelease.h>
struct regions {
@@ -36,10 +35,6 @@
int reserved_mem_size_cells;
};
-/* Simplified build-specific string for starting entropy. */
-static const char build_str[] = UTS_RELEASE " (" LINUX_COMPILE_BY "@"
- LINUX_COMPILE_HOST ") (" LINUX_COMPILER ") " UTS_VERSION;
-
struct regions __initdata regions;
static __init void kaslr_get_cmdline(void *fdt)
@@ -72,7 +67,8 @@
{
unsigned long hash = 0;
- hash = rotate_xor(hash, build_str, sizeof(build_str));
+ /* build-specific string for starting entropy. */
+ hash = rotate_xor(hash, linux_banner, strlen(linux_banner));
hash = rotate_xor(hash, fdt, fdt_totalsize(fdt));
return hash;
diff --git a/arch/powerpc/mm/numa.c b/arch/powerpc/mm/numa.c
index 094a107..275c60f 100644
--- a/arch/powerpc/mm/numa.c
+++ b/arch/powerpc/mm/numa.c
@@ -742,7 +742,9 @@
of_node_put(cpu);
}
- node_set_online(nid);
+ /* node_set_online() is an UB if 'nid' is negative */
+ if (likely(nid >= 0))
+ node_set_online(nid);
}
get_n_mem_cells(&n_mem_addr_cells, &n_mem_size_cells);
diff --git a/arch/powerpc/mm/ptdump/shared.c b/arch/powerpc/mm/ptdump/shared.c
index c005fe0..ae97b82 100644
--- a/arch/powerpc/mm/ptdump/shared.c
+++ b/arch/powerpc/mm/ptdump/shared.c
@@ -17,9 +17,9 @@
.clear = " ",
}, {
.mask = _PAGE_RW,
- .val = _PAGE_RW,
- .set = "rw",
- .clear = "r ",
+ .val = 0,
+ .set = "r ",
+ .clear = "rw",
}, {
.mask = _PAGE_EXEC,
.val = _PAGE_EXEC,
diff --git a/arch/powerpc/perf/Makefile b/arch/powerpc/perf/Makefile
index c02854d..da9f60e 100644
--- a/arch/powerpc/perf/Makefile
+++ b/arch/powerpc/perf/Makefile
@@ -5,11 +5,11 @@
obj-$(CONFIG_PERF_EVENTS) += callchain_32.o
endif
-obj-$(CONFIG_PPC_PERF_CTRS) += core-book3s.o bhrb.o
+obj-$(CONFIG_PPC_PERF_CTRS) += core-book3s.o
obj64-$(CONFIG_PPC_PERF_CTRS) += ppc970-pmu.o power5-pmu.o \
power5+-pmu.o power6-pmu.o power7-pmu.o \
isa207-common.o power8-pmu.o power9-pmu.o \
- generic-compat-pmu.o power10-pmu.o
+ generic-compat-pmu.o power10-pmu.o bhrb.o
obj32-$(CONFIG_PPC_PERF_CTRS) += mpc7450-pmu.o
obj-$(CONFIG_PPC_POWERNV) += imc-pmu.o
diff --git a/arch/powerpc/perf/core-book3s.c b/arch/powerpc/perf/core-book3s.c
index e49aa8f..6e3e506 100644
--- a/arch/powerpc/perf/core-book3s.c
+++ b/arch/powerpc/perf/core-book3s.c
@@ -1267,27 +1267,22 @@
* a PMI happens during interrupt replay and perf counter
* values are cleared by PMU callbacks before replay.
*
- * If any PMC corresponding to the active PMU events are
- * overflown, disable the interrupt by clearing the paca
- * bit for PMI since we are disabling the PMU now.
- * Otherwise provide a warning if there is PMI pending, but
- * no counter is found overflown.
+ * Disable the interrupt by clearing the paca bit for PMI
+ * since we are disabling the PMU now. Otherwise provide a
+ * warning if there is PMI pending, but no counter is found
+ * overflown.
+ *
+ * Since power_pmu_disable runs under local_irq_save, it
+ * could happen that code hits a PMC overflow without PMI
+ * pending in paca. Hence only clear PMI pending if it was
+ * set.
+ *
+ * If a PMI is pending, then MSR[EE] must be disabled (because
+ * the masked PMI handler disabling EE). So it is safe to
+ * call clear_pmi_irq_pending().
*/
- if (any_pmc_overflown(cpuhw)) {
- /*
- * Since power_pmu_disable runs under local_irq_save, it
- * could happen that code hits a PMC overflow without PMI
- * pending in paca. Hence only clear PMI pending if it was
- * set.
- *
- * If a PMI is pending, then MSR[EE] must be disabled (because
- * the masked PMI handler disabling EE). So it is safe to
- * call clear_pmi_irq_pending().
- */
- if (pmi_irq_pending())
- clear_pmi_irq_pending();
- } else
- WARN_ON(pmi_irq_pending());
+ if (pmi_irq_pending())
+ clear_pmi_irq_pending();
val = mmcra = cpuhw->mmcr.mmcra;
diff --git a/arch/powerpc/perf/imc-pmu.c b/arch/powerpc/perf/imc-pmu.c
index 7b25548..e8074d7 100644
--- a/arch/powerpc/perf/imc-pmu.c
+++ b/arch/powerpc/perf/imc-pmu.c
@@ -1457,7 +1457,11 @@
event->hw.idx = -1;
- event->pmu->task_ctx_nr = perf_hw_context;
+ /*
+ * There can only be a single PMU for perf_hw_context events which is assigned to
+ * core PMU. Hence use "perf_sw_context" for trace_imc.
+ */
+ event->pmu->task_ctx_nr = perf_sw_context;
event->destroy = reset_global_refc;
return 0;
}
diff --git a/arch/powerpc/perf/isa207-common.c b/arch/powerpc/perf/isa207-common.c
index 58448f0..52990be 100644
--- a/arch/powerpc/perf/isa207-common.c
+++ b/arch/powerpc/perf/isa207-common.c
@@ -363,7 +363,8 @@
if (event_is_threshold(event) && is_thresh_cmp_valid(event)) {
mask |= CNST_THRESH_MASK;
value |= CNST_THRESH_VAL(event >> EVENT_THRESH_SHIFT);
- }
+ } else if (event_is_threshold(event))
+ return -1;
} else {
/*
* Special case for PM_MRK_FAB_RSP_MATCH and PM_MRK_FAB_RSP_MATCH_CYC,
diff --git a/arch/powerpc/perf/power9-pmu.c b/arch/powerpc/perf/power9-pmu.c
index 2a57e93..7245355 100644
--- a/arch/powerpc/perf/power9-pmu.c
+++ b/arch/powerpc/perf/power9-pmu.c
@@ -133,11 +133,11 @@
/* Table of alternatives, sorted by column 0 */
static const unsigned int power9_event_alternatives[][MAX_ALT] = {
- { PM_INST_DISP, PM_INST_DISP_ALT },
- { PM_RUN_CYC_ALT, PM_RUN_CYC },
- { PM_RUN_INST_CMPL_ALT, PM_RUN_INST_CMPL },
- { PM_LD_MISS_L1, PM_LD_MISS_L1_ALT },
{ PM_BR_2PATH, PM_BR_2PATH_ALT },
+ { PM_INST_DISP, PM_INST_DISP_ALT },
+ { PM_RUN_CYC_ALT, PM_RUN_CYC },
+ { PM_LD_MISS_L1, PM_LD_MISS_L1_ALT },
+ { PM_RUN_INST_CMPL_ALT, PM_RUN_INST_CMPL },
};
static int power9_get_alternatives(u64 event, unsigned int flags, u64 alt[])
diff --git a/arch/powerpc/platforms/4xx/cpm.c b/arch/powerpc/platforms/4xx/cpm.c
index ae8b812..2481e78 100644
--- a/arch/powerpc/platforms/4xx/cpm.c
+++ b/arch/powerpc/platforms/4xx/cpm.c
@@ -327,6 +327,6 @@
static int __init cpm_powersave_off(char *arg)
{
cpm.powersave_off = 1;
- return 0;
+ return 1;
}
__setup("powersave=off", cpm_powersave_off);
diff --git a/arch/powerpc/platforms/8xx/cpm1.c b/arch/powerpc/platforms/8xx/cpm1.c
index c58b6f1..3ef5e9f 100644
--- a/arch/powerpc/platforms/8xx/cpm1.c
+++ b/arch/powerpc/platforms/8xx/cpm1.c
@@ -280,6 +280,7 @@
out_be32(bp, (((BRG_UART_CLK_DIV16 / rate) - 1) << 1) |
CPM_BRG_EN | CPM_BRG_DIV16);
}
+EXPORT_SYMBOL(cpm_setbrg);
struct cpm_ioport16 {
__be16 dir, par, odr_sor, dat, intr;
diff --git a/arch/powerpc/platforms/8xx/pic.c b/arch/powerpc/platforms/8xx/pic.c
index f2ba837..04a6abf 100644
--- a/arch/powerpc/platforms/8xx/pic.c
+++ b/arch/powerpc/platforms/8xx/pic.c
@@ -153,6 +153,7 @@
if (mpc8xx_pic_host == NULL) {
printk(KERN_ERR "MPC8xx PIC: failed to allocate irq host!\n");
ret = -ENOMEM;
+ goto out;
}
ret = 0;
diff --git a/arch/powerpc/platforms/Kconfig.cputype b/arch/powerpc/platforms/Kconfig.cputype
index 32a9c4c..84f9dd4 100644
--- a/arch/powerpc/platforms/Kconfig.cputype
+++ b/arch/powerpc/platforms/Kconfig.cputype
@@ -119,9 +119,9 @@
depends on PPC64 && CPU_LITTLE_ENDIAN
select ARCH_HAS_FAST_MULTIPLIER
-config GENERIC_CPU
+config POWERPC_CPU
bool "Generic 32 bits powerpc"
- depends on PPC32 && !PPC_8xx
+ depends on PPC32 && !PPC_8xx && !PPC_85xx
config CELL_CPU
bool "Cell Broadband Engine"
@@ -152,11 +152,11 @@
config E5500_CPU
bool "Freescale e5500"
- depends on E500
+ depends on PPC64 && E500
config E6500_CPU
bool "Freescale e6500"
- depends on E500
+ depends on PPC64 && E500
config 860_CPU
bool "8xx family"
@@ -175,11 +175,23 @@
depends on PPC_BOOK3S_32
select ALTIVEC
+config E500_CPU
+ bool "e500 (8540)"
+ depends on PPC_85xx && !PPC_E500MC
+
+config E500MC_CPU
+ bool "e500mc"
+ depends on PPC_85xx && PPC_E500MC
+
+config TOOLCHAIN_DEFAULT_CPU
+ bool "Rely on the toolchain's implicit default CPU"
+ depends on PPC32
+
endchoice
config TARGET_CPU_BOOL
bool
- default !GENERIC_CPU
+ default !GENERIC_CPU && !TOOLCHAIN_DEFAULT_CPU
config TARGET_CPU
string
@@ -194,6 +206,9 @@
default "e300c2" if E300C2_CPU
default "e300c3" if E300C3_CPU
default "G4" if G4_CPU
+ default "8540" if E500_CPU
+ default "e500mc" if E500MC_CPU
+ default "powerpc" if POWERPC_CPU
config PPC_BOOK3S
def_bool y
diff --git a/arch/powerpc/platforms/cell/axon_msi.c b/arch/powerpc/platforms/cell/axon_msi.c
index ca2555b..ffbc7d2 100644
--- a/arch/powerpc/platforms/cell/axon_msi.c
+++ b/arch/powerpc/platforms/cell/axon_msi.c
@@ -226,6 +226,7 @@
if (!prop) {
dev_dbg(&dev->dev,
"axon_msi: no msi-address-(32|64) properties found\n");
+ of_node_put(dn);
return -ENOENT;
}
diff --git a/arch/powerpc/platforms/cell/spufs/inode.c b/arch/powerpc/platforms/cell/spufs/inode.c
index 2539056..908e9b8 100644
--- a/arch/powerpc/platforms/cell/spufs/inode.c
+++ b/arch/powerpc/platforms/cell/spufs/inode.c
@@ -664,6 +664,7 @@
return;
loader = of_get_property(dn, "loader", &size);
+ of_node_put(dn);
if (!loader)
return;
diff --git a/arch/powerpc/platforms/powermac/cache.S b/arch/powerpc/platforms/powermac/cache.S
index ced2254..b8ae56e 100644
--- a/arch/powerpc/platforms/powermac/cache.S
+++ b/arch/powerpc/platforms/powermac/cache.S
@@ -48,7 +48,7 @@
/* Stop DST streams */
BEGIN_FTR_SECTION
- DSSALL
+ PPC_DSSALL
sync
END_FTR_SECTION_IFSET(CPU_FTR_ALTIVEC)
@@ -197,7 +197,7 @@
isync
/* Stop prefetch streams */
- DSSALL
+ PPC_DSSALL
sync
/* Disable L2 prefetching */
diff --git a/arch/powerpc/platforms/powernv/opal-fadump.c b/arch/powerpc/platforms/powernv/opal-fadump.c
index 9a360ce..e23a51a 100644
--- a/arch/powerpc/platforms/powernv/opal-fadump.c
+++ b/arch/powerpc/platforms/powernv/opal-fadump.c
@@ -60,7 +60,7 @@
addr = be64_to_cpu(addr);
pr_debug("Kernel metadata addr: %llx\n", addr);
opal_fdm_active = (void *)addr;
- if (opal_fdm_active->registered_regions == 0)
+ if (be16_to_cpu(opal_fdm_active->registered_regions) == 0)
return;
ret = opal_mpipl_query_tag(OPAL_MPIPL_TAG_BOOT_MEM, &addr);
@@ -95,17 +95,17 @@
static void opal_fadump_update_config(struct fw_dump *fadump_conf,
const struct opal_fadump_mem_struct *fdm)
{
- pr_debug("Boot memory regions count: %d\n", fdm->region_cnt);
+ pr_debug("Boot memory regions count: %d\n", be16_to_cpu(fdm->region_cnt));
/*
* The destination address of the first boot memory region is the
* destination address of boot memory regions.
*/
- fadump_conf->boot_mem_dest_addr = fdm->rgn[0].dest;
+ fadump_conf->boot_mem_dest_addr = be64_to_cpu(fdm->rgn[0].dest);
pr_debug("Destination address of boot memory regions: %#016llx\n",
fadump_conf->boot_mem_dest_addr);
- fadump_conf->fadumphdr_addr = fdm->fadumphdr_addr;
+ fadump_conf->fadumphdr_addr = be64_to_cpu(fdm->fadumphdr_addr);
}
/*
@@ -126,9 +126,9 @@
fadump_conf->boot_memory_size = 0;
pr_debug("Boot memory regions:\n");
- for (i = 0; i < fdm->region_cnt; i++) {
- base = fdm->rgn[i].src;
- size = fdm->rgn[i].size;
+ for (i = 0; i < be16_to_cpu(fdm->region_cnt); i++) {
+ base = be64_to_cpu(fdm->rgn[i].src);
+ size = be64_to_cpu(fdm->rgn[i].size);
pr_debug("\t[%03d] base: 0x%lx, size: 0x%lx\n", i, base, size);
fadump_conf->boot_mem_addr[i] = base;
@@ -143,7 +143,7 @@
* Start address of reserve dump area (permanent reservation) for
* re-registering FADump after dump capture.
*/
- fadump_conf->reserve_dump_area_start = fdm->rgn[0].dest;
+ fadump_conf->reserve_dump_area_start = be64_to_cpu(fdm->rgn[0].dest);
/*
* Rarely, but it can so happen that system crashes before all
@@ -155,13 +155,14 @@
* Hope the memory that could not be preserved only has pages
* that are usually filtered out while saving the vmcore.
*/
- if (fdm->region_cnt > fdm->registered_regions) {
+ if (be16_to_cpu(fdm->region_cnt) > be16_to_cpu(fdm->registered_regions)) {
pr_warn("Not all memory regions were saved!!!\n");
pr_warn(" Unsaved memory regions:\n");
- i = fdm->registered_regions;
- while (i < fdm->region_cnt) {
+ i = be16_to_cpu(fdm->registered_regions);
+ while (i < be16_to_cpu(fdm->region_cnt)) {
pr_warn("\t[%03d] base: 0x%llx, size: 0x%llx\n",
- i, fdm->rgn[i].src, fdm->rgn[i].size);
+ i, be64_to_cpu(fdm->rgn[i].src),
+ be64_to_cpu(fdm->rgn[i].size));
i++;
}
@@ -170,7 +171,7 @@
}
fadump_conf->boot_mem_top = (fadump_conf->boot_memory_size + hole_size);
- fadump_conf->boot_mem_regs_cnt = fdm->region_cnt;
+ fadump_conf->boot_mem_regs_cnt = be16_to_cpu(fdm->region_cnt);
opal_fadump_update_config(fadump_conf, fdm);
}
@@ -178,35 +179,38 @@
static void opal_fadump_init_metadata(struct opal_fadump_mem_struct *fdm)
{
fdm->version = OPAL_FADUMP_VERSION;
- fdm->region_cnt = 0;
- fdm->registered_regions = 0;
- fdm->fadumphdr_addr = 0;
+ fdm->region_cnt = cpu_to_be16(0);
+ fdm->registered_regions = cpu_to_be16(0);
+ fdm->fadumphdr_addr = cpu_to_be64(0);
}
static u64 opal_fadump_init_mem_struct(struct fw_dump *fadump_conf)
{
u64 addr = fadump_conf->reserve_dump_area_start;
+ u16 reg_cnt;
int i;
opal_fdm = __va(fadump_conf->kernel_metadata);
opal_fadump_init_metadata(opal_fdm);
/* Boot memory regions */
+ reg_cnt = be16_to_cpu(opal_fdm->region_cnt);
for (i = 0; i < fadump_conf->boot_mem_regs_cnt; i++) {
- opal_fdm->rgn[i].src = fadump_conf->boot_mem_addr[i];
- opal_fdm->rgn[i].dest = addr;
- opal_fdm->rgn[i].size = fadump_conf->boot_mem_sz[i];
+ opal_fdm->rgn[i].src = cpu_to_be64(fadump_conf->boot_mem_addr[i]);
+ opal_fdm->rgn[i].dest = cpu_to_be64(addr);
+ opal_fdm->rgn[i].size = cpu_to_be64(fadump_conf->boot_mem_sz[i]);
- opal_fdm->region_cnt++;
+ reg_cnt++;
addr += fadump_conf->boot_mem_sz[i];
}
+ opal_fdm->region_cnt = cpu_to_be16(reg_cnt);
/*
* Kernel metadata is passed to f/w and retrieved in capture kerenl.
* So, use it to save fadump header address instead of calculating it.
*/
- opal_fdm->fadumphdr_addr = (opal_fdm->rgn[0].dest +
- fadump_conf->boot_memory_size);
+ opal_fdm->fadumphdr_addr = cpu_to_be64(be64_to_cpu(opal_fdm->rgn[0].dest) +
+ fadump_conf->boot_memory_size);
opal_fadump_update_config(fadump_conf, opal_fdm);
@@ -269,18 +273,21 @@
static int opal_fadump_register(struct fw_dump *fadump_conf)
{
s64 rc = OPAL_PARAMETER;
+ u16 registered_regs;
int i, err = -EIO;
- for (i = 0; i < opal_fdm->region_cnt; i++) {
+ registered_regs = be16_to_cpu(opal_fdm->registered_regions);
+ for (i = 0; i < be16_to_cpu(opal_fdm->region_cnt); i++) {
rc = opal_mpipl_update(OPAL_MPIPL_ADD_RANGE,
- opal_fdm->rgn[i].src,
- opal_fdm->rgn[i].dest,
- opal_fdm->rgn[i].size);
+ be64_to_cpu(opal_fdm->rgn[i].src),
+ be64_to_cpu(opal_fdm->rgn[i].dest),
+ be64_to_cpu(opal_fdm->rgn[i].size));
if (rc != OPAL_SUCCESS)
break;
- opal_fdm->registered_regions++;
+ registered_regs++;
}
+ opal_fdm->registered_regions = cpu_to_be16(registered_regs);
switch (rc) {
case OPAL_SUCCESS:
@@ -291,7 +298,8 @@
case OPAL_RESOURCE:
/* If MAX regions limit in f/w is hit, warn and proceed. */
pr_warn("%d regions could not be registered for MPIPL as MAX limit is reached!\n",
- (opal_fdm->region_cnt - opal_fdm->registered_regions));
+ (be16_to_cpu(opal_fdm->region_cnt) -
+ be16_to_cpu(opal_fdm->registered_regions)));
fadump_conf->dump_registered = 1;
err = 0;
break;
@@ -312,7 +320,7 @@
* If some regions were registered before OPAL_MPIPL_ADD_RANGE
* OPAL call failed, unregister all regions.
*/
- if ((err < 0) && (opal_fdm->registered_regions > 0))
+ if ((err < 0) && (be16_to_cpu(opal_fdm->registered_regions) > 0))
opal_fadump_unregister(fadump_conf);
return err;
@@ -328,7 +336,7 @@
return -EIO;
}
- opal_fdm->registered_regions = 0;
+ opal_fdm->registered_regions = cpu_to_be16(0);
fadump_conf->dump_registered = 0;
return 0;
}
@@ -563,19 +571,20 @@
else
fdm_ptr = opal_fdm;
- for (i = 0; i < fdm_ptr->region_cnt; i++) {
+ for (i = 0; i < be16_to_cpu(fdm_ptr->region_cnt); i++) {
/*
* Only regions that are registered for MPIPL
* would have dump data.
*/
if ((fadump_conf->dump_active) &&
- (i < fdm_ptr->registered_regions))
- dumped_bytes = fdm_ptr->rgn[i].size;
+ (i < be16_to_cpu(fdm_ptr->registered_regions)))
+ dumped_bytes = be64_to_cpu(fdm_ptr->rgn[i].size);
seq_printf(m, "DUMP: Src: %#016llx, Dest: %#016llx, ",
- fdm_ptr->rgn[i].src, fdm_ptr->rgn[i].dest);
+ be64_to_cpu(fdm_ptr->rgn[i].src),
+ be64_to_cpu(fdm_ptr->rgn[i].dest));
seq_printf(m, "Size: %#llx, Dumped: %#llx bytes\n",
- fdm_ptr->rgn[i].size, dumped_bytes);
+ be64_to_cpu(fdm_ptr->rgn[i].size), dumped_bytes);
}
/* Dump is active. Show reserved area start address. */
@@ -624,6 +633,7 @@
{
const __be32 *prop;
unsigned long dn;
+ __be64 be_addr;
u64 addr = 0;
int i, len;
s64 ret;
@@ -680,13 +690,13 @@
if (!prop)
return;
- ret = opal_mpipl_query_tag(OPAL_MPIPL_TAG_KERNEL, &addr);
- if ((ret != OPAL_SUCCESS) || !addr) {
+ ret = opal_mpipl_query_tag(OPAL_MPIPL_TAG_KERNEL, &be_addr);
+ if ((ret != OPAL_SUCCESS) || !be_addr) {
pr_err("Failed to get Kernel metadata (%lld)\n", ret);
return;
}
- addr = be64_to_cpu(addr);
+ addr = be64_to_cpu(be_addr);
pr_debug("Kernel metadata addr: %llx\n", addr);
opal_fdm_active = __va(addr);
@@ -697,14 +707,14 @@
}
/* Kernel regions not registered with f/w for MPIPL */
- if (opal_fdm_active->registered_regions == 0) {
+ if (be16_to_cpu(opal_fdm_active->registered_regions) == 0) {
opal_fdm_active = NULL;
return;
}
- ret = opal_mpipl_query_tag(OPAL_MPIPL_TAG_CPU, &addr);
- if (addr) {
- addr = be64_to_cpu(addr);
+ ret = opal_mpipl_query_tag(OPAL_MPIPL_TAG_CPU, &be_addr);
+ if (be_addr) {
+ addr = be64_to_cpu(be_addr);
pr_debug("CPU metadata addr: %llx\n", addr);
opal_cpu_metadata = __va(addr);
}
diff --git a/arch/powerpc/platforms/powernv/opal-fadump.h b/arch/powerpc/platforms/powernv/opal-fadump.h
index f1e9ecf..3f715ef 100644
--- a/arch/powerpc/platforms/powernv/opal-fadump.h
+++ b/arch/powerpc/platforms/powernv/opal-fadump.h
@@ -31,14 +31,14 @@
* OPAL FADump kernel metadata
*
* The address of this structure will be registered with f/w for retrieving
- * and processing during crash dump.
+ * in the capture kernel to process the crash dump.
*/
struct opal_fadump_mem_struct {
u8 version;
u8 reserved[3];
- u16 region_cnt; /* number of regions */
- u16 registered_regions; /* Regions registered for MPIPL */
- u64 fadumphdr_addr;
+ __be16 region_cnt; /* number of regions */
+ __be16 registered_regions; /* Regions registered for MPIPL */
+ __be64 fadumphdr_addr;
struct opal_mpipl_region rgn[FADUMP_MAX_MEM_REGS];
} __packed;
@@ -135,7 +135,7 @@
for (i = 0; i < regs_cnt; i++, bufp += reg_entry_size) {
reg_entry = (struct hdat_fadump_reg_entry *)bufp;
val = (cpu_endian ? be64_to_cpu(reg_entry->reg_val) :
- reg_entry->reg_val);
+ (u64)(reg_entry->reg_val));
opal_fadump_set_regval_regnum(regs,
be32_to_cpu(reg_entry->reg_type),
be32_to_cpu(reg_entry->reg_num),
diff --git a/arch/powerpc/platforms/powernv/opal.c b/arch/powerpc/platforms/powernv/opal.c
index c61c3b6..1d05c16 100644
--- a/arch/powerpc/platforms/powernv/opal.c
+++ b/arch/powerpc/platforms/powernv/opal.c
@@ -892,6 +892,7 @@
kobj = kobject_create_and_add("exports", opal_kobj);
if (!kobj) {
pr_warn("kobject_create_and_add() of exports failed\n");
+ of_node_put(np);
return;
}
diff --git a/arch/powerpc/platforms/powernv/powernv.h b/arch/powerpc/platforms/powernv/powernv.h
index 11df4e1..528946e 100644
--- a/arch/powerpc/platforms/powernv/powernv.h
+++ b/arch/powerpc/platforms/powernv/powernv.h
@@ -42,4 +42,6 @@
u32 memcons_get_size(struct memcons *mc);
struct memcons *memcons_init(struct device_node *node, const char *mc_prop_name);
+void pnv_rng_init(void);
+
#endif /* _POWERNV_H */
diff --git a/arch/powerpc/platforms/powernv/rng.c b/arch/powerpc/platforms/powernv/rng.c
index 72c2529..a99033c 100644
--- a/arch/powerpc/platforms/powernv/rng.c
+++ b/arch/powerpc/platforms/powernv/rng.c
@@ -17,6 +17,7 @@
#include <asm/prom.h>
#include <asm/machdep.h>
#include <asm/smp.h>
+#include "powernv.h"
#define DARN_ERR 0xFFFFFFFFFFFFFFFFul
@@ -28,7 +29,6 @@
static DEFINE_PER_CPU(struct powernv_rng *, powernv_rng);
-
int powernv_hwrng_present(void)
{
struct powernv_rng *rng;
@@ -43,7 +43,11 @@
unsigned long parity;
/* Calculate the parity of the value */
- asm ("popcntd %0,%1" : "=r" (parity) : "r" (val));
+ asm (".machine push; \
+ .machine power7; \
+ popcntd %0,%1; \
+ .machine pop;"
+ : "=r" (parity) : "r" (val));
/* xor our value with the previous mask */
val ^= rng->mask;
@@ -59,6 +63,8 @@
struct powernv_rng *rng;
rng = raw_cpu_read(powernv_rng);
+ if (!rng)
+ return 0;
*v = rng_whiten(rng, __raw_rm_readq(rng->regs_real));
@@ -94,9 +100,6 @@
return 0;
}
}
-
- pr_warn("Unable to use DARN for get_random_seed()\n");
-
return -EIO;
}
@@ -159,32 +162,59 @@
rng_init_per_cpu(rng, dn);
- pr_info_once("Registering arch random hook.\n");
-
ppc_md.get_random_seed = powernv_get_random_long;
return 0;
}
-static __init int rng_init(void)
+static int __init pnv_get_random_long_early(unsigned long *v)
{
struct device_node *dn;
- int rc;
- for_each_compatible_node(dn, NULL, "ibm,power-rng") {
- rc = rng_create(dn);
- if (rc) {
- pr_err("Failed creating rng for %pOF (%d).\n",
- dn, rc);
- continue;
- }
+ if (!slab_is_available())
+ return 0;
- /* Create devices for hwrng driver */
- of_platform_device_create(dn, NULL, NULL);
+ if (cmpxchg(&ppc_md.get_random_seed, pnv_get_random_long_early,
+ NULL) != pnv_get_random_long_early)
+ return 0;
+
+ for_each_compatible_node(dn, NULL, "ibm,power-rng")
+ rng_create(dn);
+
+ if (!ppc_md.get_random_seed)
+ return 0;
+ return ppc_md.get_random_seed(v);
+}
+
+void __init pnv_rng_init(void)
+{
+ struct device_node *dn;
+
+ /* Prefer darn over the rest. */
+ if (!initialise_darn())
+ return;
+
+ dn = of_find_compatible_node(NULL, NULL, "ibm,power-rng");
+ if (dn)
+ ppc_md.get_random_seed = pnv_get_random_long_early;
+
+ of_node_put(dn);
+}
+
+static int __init pnv_rng_late_init(void)
+{
+ struct device_node *dn;
+ unsigned long v;
+
+ /* In case it wasn't called during init for some other reason. */
+ if (ppc_md.get_random_seed == pnv_get_random_long_early)
+ pnv_get_random_long_early(&v);
+
+ if (ppc_md.get_random_seed == powernv_get_random_long) {
+ for_each_compatible_node(dn, NULL, "ibm,power-rng")
+ of_platform_device_create(dn, NULL, NULL);
}
- initialise_darn();
-
return 0;
}
-machine_subsys_initcall(powernv, rng_init);
+machine_subsys_initcall(powernv, pnv_rng_late_init);
diff --git a/arch/powerpc/platforms/powernv/setup.c b/arch/powerpc/platforms/powernv/setup.c
index 4426a10..1a2f12d 100644
--- a/arch/powerpc/platforms/powernv/setup.c
+++ b/arch/powerpc/platforms/powernv/setup.c
@@ -193,6 +193,8 @@
pnv_check_guarded_cores();
/* XXX PMCS */
+
+ pnv_rng_init();
}
static void __init pnv_init(void)
diff --git a/arch/powerpc/platforms/powernv/ultravisor.c b/arch/powerpc/platforms/powernv/ultravisor.c
index e4a00ad..67c8c4b 100644
--- a/arch/powerpc/platforms/powernv/ultravisor.c
+++ b/arch/powerpc/platforms/powernv/ultravisor.c
@@ -55,6 +55,7 @@
return -ENODEV;
uv_memcons = memcons_init(node, "memcons");
+ of_node_put(node);
if (!uv_memcons)
return -ENOENT;
diff --git a/arch/powerpc/platforms/powernv/vas-fault.c b/arch/powerpc/platforms/powernv/vas-fault.c
index 3d21fce..dd9c23c 100644
--- a/arch/powerpc/platforms/powernv/vas-fault.c
+++ b/arch/powerpc/platforms/powernv/vas-fault.c
@@ -352,7 +352,7 @@
vas_init_rx_win_attr(&attr, VAS_COP_TYPE_FAULT);
attr.rx_fifo_size = vinst->fault_fifo_size;
- attr.rx_fifo = vinst->fault_fifo;
+ attr.rx_fifo = __pa(vinst->fault_fifo);
/*
* Max creds is based on number of CRBs can fit in the FIFO.
diff --git a/arch/powerpc/platforms/powernv/vas-window.c b/arch/powerpc/platforms/powernv/vas-window.c
index 7ba0840..3a86cdd 100644
--- a/arch/powerpc/platforms/powernv/vas-window.c
+++ b/arch/powerpc/platforms/powernv/vas-window.c
@@ -403,7 +403,7 @@
*
* See also: Design note in function header.
*/
- val = __pa(winctx->rx_fifo);
+ val = winctx->rx_fifo;
val = SET_FIELD(VAS_PAGE_MIGRATION_SELECT, val, 0);
write_hvwc_reg(window, VREG(LFIFO_BAR), val);
@@ -737,7 +737,7 @@
*/
winctx->fifo_disable = true;
winctx->intr_disable = true;
- winctx->rx_fifo = NULL;
+ winctx->rx_fifo = 0;
}
winctx->lnotify_lpid = rxattr->lnotify_lpid;
diff --git a/arch/powerpc/platforms/powernv/vas.h b/arch/powerpc/platforms/powernv/vas.h
index 70f793e..1f6e738 100644
--- a/arch/powerpc/platforms/powernv/vas.h
+++ b/arch/powerpc/platforms/powernv/vas.h
@@ -383,7 +383,7 @@
* is a container for the register fields in the window context.
*/
struct vas_winctx {
- void *rx_fifo;
+ u64 rx_fifo;
int rx_fifo_size;
int wcreds_max;
int rsvd_txbuf_count;
diff --git a/arch/powerpc/platforms/pseries/mobility.c b/arch/powerpc/platforms/pseries/mobility.c
index 2f73cb5..f386a7b 100644
--- a/arch/powerpc/platforms/pseries/mobility.c
+++ b/arch/powerpc/platforms/pseries/mobility.c
@@ -59,18 +59,31 @@
return rc;
}
-static int delete_dt_node(__be32 phandle)
+static int delete_dt_node(struct device_node *dn)
{
- struct device_node *dn;
+ struct device_node *pdn;
+ bool is_platfac;
- dn = of_find_node_by_phandle(be32_to_cpu(phandle));
- if (!dn)
- return -ENOENT;
+ pdn = of_get_parent(dn);
+ is_platfac = of_node_is_type(dn, "ibm,platform-facilities") ||
+ of_node_is_type(pdn, "ibm,platform-facilities");
+ of_node_put(pdn);
+
+ /*
+ * The drivers that bind to nodes in the platform-facilities
+ * hierarchy don't support node removal, and the removal directive
+ * from firmware is always followed by an add of an equivalent
+ * node. The capability (e.g. RNG, encryption, compression)
+ * represented by the node is never interrupted by the migration.
+ * So ignore changes to this part of the tree.
+ */
+ if (is_platfac) {
+ pr_notice("ignoring remove operation for %pOFfp\n", dn);
+ return 0;
+ }
pr_debug("removing node %pOFfp\n", dn);
-
dlpar_detach_node(dn);
- of_node_put(dn);
return 0;
}
@@ -135,10 +148,9 @@
return 0;
}
-static int update_dt_node(__be32 phandle, s32 scope)
+static int update_dt_node(struct device_node *dn, s32 scope)
{
struct update_props_workarea *upwa;
- struct device_node *dn;
struct property *prop = NULL;
int i, rc, rtas_rc;
char *prop_data;
@@ -155,14 +167,8 @@
if (!rtas_buf)
return -ENOMEM;
- dn = of_find_node_by_phandle(be32_to_cpu(phandle));
- if (!dn) {
- kfree(rtas_buf);
- return -ENOENT;
- }
-
upwa = (struct update_props_workarea *)&rtas_buf[0];
- upwa->phandle = phandle;
+ upwa->phandle = cpu_to_be32(dn->phandle);
do {
rtas_rc = mobility_rtas_call(update_properties_token, rtas_buf,
@@ -221,25 +227,30 @@
cond_resched();
} while (rtas_rc == 1);
- of_node_put(dn);
kfree(rtas_buf);
return 0;
}
-static int add_dt_node(__be32 parent_phandle, __be32 drc_index)
+static int add_dt_node(struct device_node *parent_dn, __be32 drc_index)
{
struct device_node *dn;
- struct device_node *parent_dn;
int rc;
- parent_dn = of_find_node_by_phandle(be32_to_cpu(parent_phandle));
- if (!parent_dn)
+ dn = dlpar_configure_connector(drc_index, parent_dn);
+ if (!dn)
return -ENOENT;
- dn = dlpar_configure_connector(drc_index, parent_dn);
- if (!dn) {
- of_node_put(parent_dn);
- return -ENOENT;
+ /*
+ * Since delete_dt_node() ignores this node type, this is the
+ * necessary counterpart. We also know that a platform-facilities
+ * node returned from dlpar_configure_connector() has children
+ * attached, and dlpar_attach_node() only adds the parent, leaking
+ * the children. So ignore these on the add side for now.
+ */
+ if (of_node_is_type(dn, "ibm,platform-facilities")) {
+ pr_notice("ignoring add operation for %pOF\n", dn);
+ dlpar_free_cc_nodes(dn);
+ return 0;
}
rc = dlpar_attach_node(dn, parent_dn);
@@ -248,7 +259,6 @@
pr_debug("added node %pOFfp\n", dn);
- of_node_put(parent_dn);
return rc;
}
@@ -281,22 +291,31 @@
data++;
for (i = 0; i < node_count; i++) {
+ struct device_node *np;
__be32 phandle = *data++;
__be32 drc_index;
+ np = of_find_node_by_phandle(be32_to_cpu(phandle));
+ if (!np) {
+ pr_warn("Failed lookup: phandle 0x%x for action 0x%x\n",
+ be32_to_cpu(phandle), action);
+ continue;
+ }
+
switch (action) {
case DELETE_DT_NODE:
- delete_dt_node(phandle);
+ delete_dt_node(np);
break;
case UPDATE_DT_NODE:
- update_dt_node(phandle, scope);
+ update_dt_node(np, scope);
break;
case ADD_DT_NODE:
drc_index = *data++;
- add_dt_node(phandle, drc_index);
+ add_dt_node(np, drc_index);
break;
}
+ of_node_put(np);
cond_resched();
}
}
diff --git a/arch/powerpc/platforms/pseries/pseries.h b/arch/powerpc/platforms/pseries/pseries.h
index 5938408..ada9601 100644
--- a/arch/powerpc/platforms/pseries/pseries.h
+++ b/arch/powerpc/platforms/pseries/pseries.h
@@ -114,4 +114,6 @@
void pseries_setup_security_mitigations(void);
void pseries_lpar_read_hblkrm_characteristics(void);
+void pseries_rng_init(void);
+
#endif /* _PSERIES_PSERIES_H */
diff --git a/arch/powerpc/platforms/pseries/rng.c b/arch/powerpc/platforms/pseries/rng.c
index 6268545..6ddfdea 100644
--- a/arch/powerpc/platforms/pseries/rng.c
+++ b/arch/powerpc/platforms/pseries/rng.c
@@ -10,6 +10,7 @@
#include <asm/archrandom.h>
#include <asm/machdep.h>
#include <asm/plpar_wrappers.h>
+#include "pseries.h"
static int pseries_get_random_long(unsigned long *v)
@@ -24,19 +25,13 @@
return 0;
}
-static __init int rng_init(void)
+void __init pseries_rng_init(void)
{
struct device_node *dn;
dn = of_find_compatible_node(NULL, NULL, "ibm,random");
if (!dn)
- return -ENODEV;
-
- pr_info("Registering arch random hook.\n");
-
+ return;
ppc_md.get_random_seed = pseries_get_random_long;
-
of_node_put(dn);
- return 0;
}
-machine_subsys_initcall(pseries, rng_init);
diff --git a/arch/powerpc/platforms/pseries/setup.c b/arch/powerpc/platforms/pseries/setup.c
index 47dfada..0eac9ca 100644
--- a/arch/powerpc/platforms/pseries/setup.c
+++ b/arch/powerpc/platforms/pseries/setup.c
@@ -824,6 +824,8 @@
if (swiotlb_force == SWIOTLB_FORCE)
ppc_swiotlb_enable = 1;
+
+ pseries_rng_init();
}
static void pseries_panic(char *str)
diff --git a/arch/powerpc/sysdev/dart_iommu.c b/arch/powerpc/sysdev/dart_iommu.c
index 6b4a34b..8ff9bcf 100644
--- a/arch/powerpc/sysdev/dart_iommu.c
+++ b/arch/powerpc/sysdev/dart_iommu.c
@@ -403,9 +403,10 @@
}
/* Initialize the DART HW */
- if (dart_init(dn) != 0)
+ if (dart_init(dn) != 0) {
+ of_node_put(dn);
return;
-
+ }
/*
* U4 supports a DART bypass, we use it for 64-bit capable devices to
* improve performance. However, that only works for devices connected
@@ -418,6 +419,7 @@
/* Setup pci_dma ops */
set_pci_dma_ops(&dma_iommu_ops);
+ of_node_put(dn);
}
#ifdef CONFIG_PM
diff --git a/arch/powerpc/sysdev/fsl_gtm.c b/arch/powerpc/sysdev/fsl_gtm.c
index 8963eaf..39186ad 100644
--- a/arch/powerpc/sysdev/fsl_gtm.c
+++ b/arch/powerpc/sysdev/fsl_gtm.c
@@ -86,7 +86,7 @@
*/
struct gtm_timer *gtm_get_timer16(void)
{
- struct gtm *gtm = NULL;
+ struct gtm *gtm;
int i;
list_for_each_entry(gtm, >ms, list_node) {
@@ -103,7 +103,7 @@
spin_unlock_irq(>m->lock);
}
- if (gtm)
+ if (!list_empty(>ms))
return ERR_PTR(-EBUSY);
return ERR_PTR(-ENODEV);
}
diff --git a/arch/powerpc/sysdev/fsl_msi.c b/arch/powerpc/sysdev/fsl_msi.c
index 808e711..d276c5e 100644
--- a/arch/powerpc/sysdev/fsl_msi.c
+++ b/arch/powerpc/sysdev/fsl_msi.c
@@ -211,8 +211,10 @@
dev_err(&pdev->dev,
"node %pOF has an invalid fsl,msi phandle %u\n",
hose->dn, np->phandle);
+ of_node_put(np);
return -EINVAL;
}
+ of_node_put(np);
}
for_each_pci_msi_entry(entry, pdev) {
diff --git a/arch/powerpc/sysdev/fsl_pci.c b/arch/powerpc/sysdev/fsl_pci.c
index 040b9d0..4dd1524 100644
--- a/arch/powerpc/sysdev/fsl_pci.c
+++ b/arch/powerpc/sysdev/fsl_pci.c
@@ -520,6 +520,7 @@
struct resource rsrc;
const int *bus_range;
u8 hdr_type, progif;
+ u32 class_code;
struct device_node *dev;
struct ccsr_pci __iomem *pci;
u16 temp;
@@ -593,6 +594,13 @@
PPC_INDIRECT_TYPE_SURPRESS_PRIMARY_BUS;
if (fsl_pcie_check_link(hose))
hose->indirect_type |= PPC_INDIRECT_TYPE_NO_PCIE_LINK;
+ /* Fix Class Code to PCI_CLASS_BRIDGE_PCI_NORMAL for pre-3.0 controller */
+ if (in_be32(&pci->block_rev1) < PCIE_IP_REV_3_0) {
+ early_read_config_dword(hose, 0, 0, PCIE_FSL_CSR_CLASSCODE, &class_code);
+ class_code &= 0xff;
+ class_code |= PCI_CLASS_BRIDGE_PCI_NORMAL << 8;
+ early_write_config_dword(hose, 0, 0, PCIE_FSL_CSR_CLASSCODE, class_code);
+ }
} else {
/*
* Set PBFR(PCI Bus Function Register)[10] = 1 to
diff --git a/arch/powerpc/sysdev/fsl_pci.h b/arch/powerpc/sysdev/fsl_pci.h
index 1d7a412..5ffaa60 100644
--- a/arch/powerpc/sysdev/fsl_pci.h
+++ b/arch/powerpc/sysdev/fsl_pci.h
@@ -18,6 +18,7 @@
#define PCIE_LTSSM 0x0404 /* PCIE Link Training and Status */
#define PCIE_LTSSM_L0 0x16 /* L0 state */
+#define PCIE_FSL_CSR_CLASSCODE 0x474 /* FSL GPEX CSR */
#define PCIE_IP_REV_2_2 0x02080202 /* PCIE IP block version Rev2.2 */
#define PCIE_IP_REV_3_0 0x02080300 /* PCIE IP block version Rev3.0 */
#define PIWAR_EN 0x80000000 /* Enable */
diff --git a/arch/powerpc/sysdev/fsl_rio.c b/arch/powerpc/sysdev/fsl_rio.c
index 07c164f..3f9f786 100644
--- a/arch/powerpc/sysdev/fsl_rio.c
+++ b/arch/powerpc/sysdev/fsl_rio.c
@@ -505,8 +505,10 @@
if (rc) {
dev_err(&dev->dev, "Can't get %pOF property 'reg'\n",
rmu_node);
+ of_node_put(rmu_node);
goto err_rmu;
}
+ of_node_put(rmu_node);
rmu_regs_win = ioremap(rmu_regs.start, resource_size(&rmu_regs));
if (!rmu_regs_win) {
dev_err(&dev->dev, "Unable to map rmu register window\n");
diff --git a/arch/powerpc/sysdev/xics/icp-opal.c b/arch/powerpc/sysdev/xics/icp-opal.c
index 68fd254..7fa520e 100644
--- a/arch/powerpc/sysdev/xics/icp-opal.c
+++ b/arch/powerpc/sysdev/xics/icp-opal.c
@@ -195,6 +195,7 @@
printk("XICS: Using OPAL ICP fallbacks\n");
+ of_node_put(np);
return 0;
}
diff --git a/arch/powerpc/sysdev/xive/spapr.c b/arch/powerpc/sysdev/xive/spapr.c
index b57eeaf..38e8b98 100644
--- a/arch/powerpc/sysdev/xive/spapr.c
+++ b/arch/powerpc/sysdev/xive/spapr.c
@@ -710,6 +710,7 @@
}
reg = of_get_property(rootdn, "ibm,plat-res-int-priorities", &len);
+ of_node_put(rootdn);
if (!reg) {
pr_err("Failed to read 'ibm,plat-res-int-priorities' property\n");
return false;