--- /dev/null
+From e53f21bce4d35a93b23d8fa1a840860f6c74f59e Mon Sep 17 00:00:00 2001
+From: Catalin Marinas <catalin.marinas@arm.com>
+Date: Mon, 23 Mar 2015 15:06:50 +0000
+Subject: arm64: Use the reserved TTBR0 if context switching to the init_mm
+
+From: Catalin Marinas <catalin.marinas@arm.com>
+
+commit e53f21bce4d35a93b23d8fa1a840860f6c74f59e upstream.
+
+The idle_task_exit() function may call switch_mm() with next ==
+&init_mm. On arm64, init_mm.pgd cannot be used for user mappings, so
+this patch simply sets the reserved TTBR0.
+
+Reported-by: Jon Medhurst (Tixy) <tixy@linaro.org>
+Tested-by: Jon Medhurst (Tixy) <tixy@linaro.org>
+Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
+Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
+
+---
+ arch/arm64/include/asm/mmu_context.h | 9 +++++++++
+ 1 file changed, 9 insertions(+)
+
+--- a/arch/arm64/include/asm/mmu_context.h
++++ b/arch/arm64/include/asm/mmu_context.h
+@@ -151,6 +151,15 @@ switch_mm(struct mm_struct *prev, struct
+ {
+ unsigned int cpu = smp_processor_id();
+
++ /*
++ * init_mm.pgd does not contain any user mappings and it is always
++ * active for kernel addresses in TTBR1. Just set the reserved TTBR0.
++ */
++ if (next == &init_mm) {
++ cpu_set_reserved_ttbr0();
++ return;
++ }
++
+ if (!cpumask_test_and_set_cpu(cpu, mm_cpumask(next)) || prev != next)
+ check_and_switch_context(next, tsk);
+ }
--- /dev/null
+From c8648508ebfc597058d2cd00b6c539110264a167 Mon Sep 17 00:00:00 2001
+From: Ameya Palande <2ameya@gmail.com>
+Date: Thu, 26 Feb 2015 12:05:51 -0800
+Subject: mfd: kempld-core: Fix callback return value check
+
+From: Ameya Palande <2ameya@gmail.com>
+
+commit c8648508ebfc597058d2cd00b6c539110264a167 upstream.
+
+On success, callback function returns 0. So invert the if condition
+check so that we can break out of loop.
+
+Signed-off-by: Ameya Palande <2ameya@gmail.com>
+Signed-off-by: Lee Jones <lee.jones@linaro.org>
+Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
+
+---
+ drivers/mfd/kempld-core.c | 2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+--- a/drivers/mfd/kempld-core.c
++++ b/drivers/mfd/kempld-core.c
+@@ -629,7 +629,7 @@ static int __init kempld_init(void)
+ if (force_device_id[0]) {
+ for (id = kempld_dmi_table; id->matches[0].slot != DMI_NONE; id++)
+ if (strstr(id->ident, force_device_id))
+- if (id->callback && id->callback(id))
++ if (id->callback && !id->callback(id))
+ break;
+ if (id->matches[0].slot == DMI_NONE)
+ return -ENODEV;
--- /dev/null
+From 87f966d97b89774162df04d2106c6350c8fe4cb3 Mon Sep 17 00:00:00 2001
+From: Markos Chandras <markos.chandras@imgtec.com>
+Date: Thu, 19 Mar 2015 10:28:14 +0000
+Subject: net: ethernet: pcnet32: Setup the SRAM and NOUFLO on Am79C97{3, 5}
+
+From: Markos Chandras <markos.chandras@imgtec.com>
+
+commit 87f966d97b89774162df04d2106c6350c8fe4cb3 upstream.
+
+On a MIPS Malta board, tons of fifo underflow errors have been observed
+when using u-boot as bootloader instead of YAMON. The reason for that
+is that YAMON used to set the pcnet device to SRAM mode but u-boot does
+not. As a result, the default Tx threshold (64 bytes) is now too small to
+keep the fifo relatively used and it can result to Tx fifo underflow errors.
+As a result of which, it's best to setup the SRAM on supported controllers
+so we can always use the NOUFLO bit.
+
+Cc: <netdev@vger.kernel.org>
+Cc: <linux-kernel@vger.kernel.org>
+Cc: Don Fry <pcnet32@frontier.com>
+Signed-off-by: Markos Chandras <markos.chandras@imgtec.com>
+Signed-off-by: David S. Miller <davem@davemloft.net>
+Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
+
+---
+ drivers/net/ethernet/amd/pcnet32.c | 31 +++++++++++++++++++++++++++++--
+ 1 file changed, 29 insertions(+), 2 deletions(-)
+
+--- a/drivers/net/ethernet/amd/pcnet32.c
++++ b/drivers/net/ethernet/amd/pcnet32.c
+@@ -1516,7 +1516,7 @@ pcnet32_probe1(unsigned long ioaddr, int
+ {
+ struct pcnet32_private *lp;
+ int i, media;
+- int fdx, mii, fset, dxsuflo;
++ int fdx, mii, fset, dxsuflo, sram;
+ int chip_version;
+ char *chipname;
+ struct net_device *dev;
+@@ -1553,7 +1553,7 @@ pcnet32_probe1(unsigned long ioaddr, int
+ }
+
+ /* initialize variables */
+- fdx = mii = fset = dxsuflo = 0;
++ fdx = mii = fset = dxsuflo = sram = 0;
+ chip_version = (chip_version >> 12) & 0xffff;
+
+ switch (chip_version) {
+@@ -1586,6 +1586,7 @@ pcnet32_probe1(unsigned long ioaddr, int
+ chipname = "PCnet/FAST III 79C973"; /* PCI */
+ fdx = 1;
+ mii = 1;
++ sram = 1;
+ break;
+ case 0x2626:
+ chipname = "PCnet/Home 79C978"; /* PCI */
+@@ -1609,6 +1610,7 @@ pcnet32_probe1(unsigned long ioaddr, int
+ chipname = "PCnet/FAST III 79C975"; /* PCI */
+ fdx = 1;
+ mii = 1;
++ sram = 1;
+ break;
+ case 0x2628:
+ chipname = "PCnet/PRO 79C976";
+@@ -1637,6 +1639,31 @@ pcnet32_probe1(unsigned long ioaddr, int
+ dxsuflo = 1;
+ }
+
++ /*
++ * The Am79C973/Am79C975 controllers come with 12K of SRAM
++ * which we can use for the Tx/Rx buffers but most importantly,
++ * the use of SRAM allow us to use the BCR18:NOUFLO bit to avoid
++ * Tx fifo underflows.
++ */
++ if (sram) {
++ /*
++ * The SRAM is being configured in two steps. First we
++ * set the SRAM size in the BCR25:SRAM_SIZE bits. According
++ * to the datasheet, each bit corresponds to a 512-byte
++ * page so we can have at most 24 pages. The SRAM_SIZE
++ * holds the value of the upper 8 bits of the 16-bit SRAM size.
++ * The low 8-bits start at 0x00 and end at 0xff. So the
++ * address range is from 0x0000 up to 0x17ff. Therefore,
++ * the SRAM_SIZE is set to 0x17. The next step is to set
++ * the BCR26:SRAM_BND midway through so the Tx and Rx
++ * buffers can share the SRAM equally.
++ */
++ a->write_bcr(ioaddr, 25, 0x17);
++ a->write_bcr(ioaddr, 26, 0xc);
++ /* And finally enable the NOUFLO bit */
++ a->write_bcr(ioaddr, 18, a->read_bcr(ioaddr, 18) | (1 << 11));
++ }
++
+ dev = alloc_etherdev(sizeof(*lp));
+ if (!dev) {
+ ret = -ENOMEM;
--- /dev/null
+From 44d5f6f5901e996744858c175baee320ccf1eda3 Mon Sep 17 00:00:00 2001
+From: Mahesh Salgaonkar <mahesh@linux.vnet.ibm.com>
+Date: Tue, 17 Mar 2015 16:14:41 +0530
+Subject: powerpc/book3s: Fix the MCE code to use CONFIG_KVM_BOOK3S_64_HANDLER
+
+From: Mahesh Salgaonkar <mahesh@linux.vnet.ibm.com>
+
+commit 44d5f6f5901e996744858c175baee320ccf1eda3 upstream.
+
+commit id 2ba9f0d has changed CONFIG_KVM_BOOK3S_64_HV to tristate to allow
+HV/PR bits to be built as modules. But the MCE code still depends on
+CONFIG_KVM_BOOK3S_64_HV which is wrong. When user selects
+CONFIG_KVM_BOOK3S_64_HV=m to build HV/PR bits as a separate module the
+relevant MCE code gets excluded.
+
+This patch fixes the MCE code to use CONFIG_KVM_BOOK3S_64_HANDLER. This
+makes sure that the relevant MCE code is included when HV/PR bits
+are built as a separate modules.
+
+Fixes: 2ba9f0d88750 ("kvm: powerpc: book3s: Support building HV and PR KVM as module")
+Signed-off-by: Mahesh Salgaonkar <mahesh@linux.vnet.ibm.com>
+Acked-by: Paul Mackerras <paulus@samba.org>
+Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
+Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
+
+---
+ arch/powerpc/kernel/exceptions-64s.S | 2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+--- a/arch/powerpc/kernel/exceptions-64s.S
++++ b/arch/powerpc/kernel/exceptions-64s.S
+@@ -1422,7 +1422,7 @@ machine_check_handle_early:
+ bne 9f /* continue in V mode if we are. */
+
+ 5:
+-#ifdef CONFIG_KVM_BOOK3S_64_HV
++#ifdef CONFIG_KVM_BOOK3S_64_HANDLER
+ /*
+ * We are coming from kernel context. Check if we are coming from
+ * guest. if yes, then we can continue. We will fall through
--- /dev/null
+From bb344ca5b90df62b1a3b7a35c6a9d00b306a170d Mon Sep 17 00:00:00 2001
+From: Scott Wood <scottwood@freescale.com>
+Date: Wed, 17 Dec 2014 19:06:31 -0600
+Subject: powerpc/mpc85xx: Add ranges to etsec2 nodes
+
+From: Scott Wood <scottwood@freescale.com>
+
+commit bb344ca5b90df62b1a3b7a35c6a9d00b306a170d upstream.
+
+Commit 746c9e9f92dd "of/base: Fix PowerPC address parsing hack" limited
+the applicability of the workaround whereby a missing ranges is treated
+as an empty ranges. This workaround was hiding a bug in the etsec2
+device tree nodes, which have children with reg, but did not have
+ranges.
+
+Signed-off-by: Scott Wood <scottwood@freescale.com>
+Reported-by: Alexander Graf <agraf@suse.de>
+Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
+
+---
+ arch/powerpc/boot/dts/fsl/pq3-etsec2-0.dtsi | 1 +
+ arch/powerpc/boot/dts/fsl/pq3-etsec2-1.dtsi | 1 +
+ arch/powerpc/boot/dts/fsl/pq3-etsec2-2.dtsi | 1 +
+ 3 files changed, 3 insertions(+)
+
+--- a/arch/powerpc/boot/dts/fsl/pq3-etsec2-0.dtsi
++++ b/arch/powerpc/boot/dts/fsl/pq3-etsec2-0.dtsi
+@@ -50,6 +50,7 @@ ethernet@b0000 {
+ fsl,num_tx_queues = <0x8>;
+ fsl,magic-packet;
+ local-mac-address = [ 00 00 00 00 00 00 ];
++ ranges;
+
+ queue-group@b0000 {
+ #address-cells = <1>;
+--- a/arch/powerpc/boot/dts/fsl/pq3-etsec2-1.dtsi
++++ b/arch/powerpc/boot/dts/fsl/pq3-etsec2-1.dtsi
+@@ -50,6 +50,7 @@ ethernet@b1000 {
+ fsl,num_tx_queues = <0x8>;
+ fsl,magic-packet;
+ local-mac-address = [ 00 00 00 00 00 00 ];
++ ranges;
+
+ queue-group@b1000 {
+ #address-cells = <1>;
+--- a/arch/powerpc/boot/dts/fsl/pq3-etsec2-2.dtsi
++++ b/arch/powerpc/boot/dts/fsl/pq3-etsec2-2.dtsi
+@@ -49,6 +49,7 @@ ethernet@b2000 {
+ fsl,num_tx_queues = <0x8>;
+ fsl,magic-packet;
+ local-mac-address = [ 00 00 00 00 00 00 ];
++ ranges;
+
+ queue-group@b2000 {
+ #address-cells = <1>;
--- /dev/null
+From f6ff04149637723261aa4738958b0098b929ee9e Mon Sep 17 00:00:00 2001
+From: Tyrel Datwyler <tyreld@linux.vnet.ibm.com>
+Date: Wed, 4 Mar 2015 11:59:33 -0800
+Subject: powerpc/pseries: Little endian fixes for post mobility device tree update
+
+From: Tyrel Datwyler <tyreld@linux.vnet.ibm.com>
+
+commit f6ff04149637723261aa4738958b0098b929ee9e upstream.
+
+We currently use the device tree update code in the kernel after resuming
+from a suspend operation to re-sync the kernels view of the device tree with
+that of the hypervisor. The code as it stands is not endian safe as it relies
+on parsing buffers returned by RTAS calls that thusly contains data in big
+endian format.
+
+This patch annotates variables and structure members with __be types as well
+as performing necessary byte swaps to cpu endian for data that needs to be
+parsed.
+
+Signed-off-by: Tyrel Datwyler <tyreld@linux.vnet.ibm.com>
+Cc: Nathan Fontenot <nfont@linux.vnet.ibm.com>
+Cc: Cyril Bur <cyrilbur@gmail.com>
+Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
+Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
+
+---
+ arch/powerpc/platforms/pseries/mobility.c | 44 +++++++++++++++---------------
+ 1 file changed, 23 insertions(+), 21 deletions(-)
+
+--- a/arch/powerpc/platforms/pseries/mobility.c
++++ b/arch/powerpc/platforms/pseries/mobility.c
+@@ -24,10 +24,10 @@
+ static struct kobject *mobility_kobj;
+
+ struct update_props_workarea {
+- u32 phandle;
+- u32 state;
+- u64 reserved;
+- u32 nprops;
++ __be32 phandle;
++ __be32 state;
++ __be64 reserved;
++ __be32 nprops;
+ } __packed;
+
+ #define NODE_ACTION_MASK 0xff000000
+@@ -53,11 +53,11 @@ static int mobility_rtas_call(int token,
+ return rc;
+ }
+
+-static int delete_dt_node(u32 phandle)
++static int delete_dt_node(__be32 phandle)
+ {
+ struct device_node *dn;
+
+- dn = of_find_node_by_phandle(phandle);
++ dn = of_find_node_by_phandle(be32_to_cpu(phandle));
+ if (!dn)
+ return -ENOENT;
+
+@@ -126,7 +126,7 @@ static int update_dt_property(struct dev
+ return 0;
+ }
+
+-static int update_dt_node(u32 phandle, s32 scope)
++static int update_dt_node(__be32 phandle, s32 scope)
+ {
+ struct update_props_workarea *upwa;
+ struct device_node *dn;
+@@ -135,6 +135,7 @@ static int update_dt_node(u32 phandle, s
+ char *prop_data;
+ char *rtas_buf;
+ int update_properties_token;
++ u32 nprops;
+ u32 vd;
+
+ update_properties_token = rtas_token("ibm,update-properties");
+@@ -145,7 +146,7 @@ static int update_dt_node(u32 phandle, s
+ if (!rtas_buf)
+ return -ENOMEM;
+
+- dn = of_find_node_by_phandle(phandle);
++ dn = of_find_node_by_phandle(be32_to_cpu(phandle));
+ if (!dn) {
+ kfree(rtas_buf);
+ return -ENOENT;
+@@ -161,6 +162,7 @@ static int update_dt_node(u32 phandle, s
+ break;
+
+ prop_data = rtas_buf + sizeof(*upwa);
++ nprops = be32_to_cpu(upwa->nprops);
+
+ /* On the first call to ibm,update-properties for a node the
+ * the first property value descriptor contains an empty
+@@ -169,17 +171,17 @@ static int update_dt_node(u32 phandle, s
+ */
+ if (*prop_data == 0) {
+ prop_data++;
+- vd = *(u32 *)prop_data;
++ vd = be32_to_cpu(*(__be32 *)prop_data);
+ prop_data += vd + sizeof(vd);
+- upwa->nprops--;
++ nprops--;
+ }
+
+- for (i = 0; i < upwa->nprops; i++) {
++ for (i = 0; i < nprops; i++) {
+ char *prop_name;
+
+ prop_name = prop_data;
+ prop_data += strlen(prop_name) + 1;
+- vd = *(u32 *)prop_data;
++ vd = be32_to_cpu(*(__be32 *)prop_data);
+ prop_data += sizeof(vd);
+
+ switch (vd) {
+@@ -211,13 +213,13 @@ static int update_dt_node(u32 phandle, s
+ return 0;
+ }
+
+-static int add_dt_node(u32 parent_phandle, u32 drc_index)
++static int add_dt_node(__be32 parent_phandle, __be32 drc_index)
+ {
+ struct device_node *dn;
+ struct device_node *parent_dn;
+ int rc;
+
+- parent_dn = of_find_node_by_phandle(parent_phandle);
++ parent_dn = of_find_node_by_phandle(be32_to_cpu(parent_phandle));
+ if (!parent_dn)
+ return -ENOENT;
+
+@@ -236,7 +238,7 @@ static int add_dt_node(u32 parent_phandl
+ int pseries_devicetree_update(s32 scope)
+ {
+ char *rtas_buf;
+- u32 *data;
++ __be32 *data;
+ int update_nodes_token;
+ int rc;
+
+@@ -253,17 +255,17 @@ int pseries_devicetree_update(s32 scope)
+ if (rc && rc != 1)
+ break;
+
+- data = (u32 *)rtas_buf + 4;
+- while (*data & NODE_ACTION_MASK) {
++ data = (__be32 *)rtas_buf + 4;
++ while (be32_to_cpu(*data) & NODE_ACTION_MASK) {
+ int i;
+- u32 action = *data & NODE_ACTION_MASK;
+- int node_count = *data & NODE_COUNT_MASK;
++ u32 action = be32_to_cpu(*data) & NODE_ACTION_MASK;
++ u32 node_count = be32_to_cpu(*data) & NODE_COUNT_MASK;
+
+ data++;
+
+ for (i = 0; i < node_count; i++) {
+- u32 phandle = *data++;
+- u32 drc_index;
++ __be32 phandle = *data++;
++ __be32 drc_index;
+
+ switch (action) {
+ case DELETE_DT_NODE:
dm-io-deal-with-wandering-queue-limits-when-handling-req_discard-and-req_write_same.patch
spi-trigger-trace-event-for-message-done-before-mesg-complete.patch
hfsplus-fix-b-tree-corruption-after-insertion-at-position-0.patch
+powerpc-book3s-fix-the-mce-code-to-use-config_kvm_book3s_64_handler.patch
+arm64-use-the-reserved-ttbr0-if-context-switching-to-the-init_mm.patch
+powerpc-pseries-little-endian-fixes-for-post-mobility-device-tree-update.patch
+powerpc-mpc85xx-add-ranges-to-etsec2-nodes.patch
+net-ethernet-pcnet32-setup-the-sram-and-nouflo-on-am79c97-3-5.patch
+mfd-kempld-core-fix-callback-return-value-check.patch
projects / thirdparty / kernel / stable-queue.git / commitdiff
