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authorTejun Heo <tj@kernel.org>2014-11-22 09:32:08 -0500
committerTejun Heo <tj@kernel.org>2014-11-22 09:32:08 -0500
commitcceb9bd63373061ad7b75c321808a2fb11c86545 (patch)
treea70d939eabed2e19538707402441644dfc26990e /arch/arm64
parent56e4dea81a55c338eede625f715c7fa21f1a28c4 (diff)
parent8a84e01e147f44111988f9d8ccd2eaa30215a0f2 (diff)
downloadblackbird-op-linux-cceb9bd63373061ad7b75c321808a2fb11c86545.tar.gz
blackbird-op-linux-cceb9bd63373061ad7b75c321808a2fb11c86545.zip
Merge branch 'master' into for-3.19
Pull in to receive 54ef6df3f3f1 ("rcu: Provide counterpart to rcu_dereference() for non-RCU situations"). Signed-off-by: Tejun Heo <tj@kernel.org>
Diffstat (limited to 'arch/arm64')
-rw-r--r--arch/arm64/boot/dts/apm-storm.dtsi10
-rw-r--r--arch/arm64/configs/defconfig26
-rw-r--r--arch/arm64/include/asm/memory.h2
-rw-r--r--arch/arm64/include/asm/unistd32.h2
-rw-r--r--arch/arm64/kernel/efi-entry.S27
-rw-r--r--arch/arm64/kernel/insn.c5
-rw-r--r--arch/arm64/kernel/psci.c2
-rw-r--r--arch/arm64/lib/clear_user.S2
-rw-r--r--arch/arm64/mm/mmu.c2
9 files changed, 59 insertions, 19 deletions
diff --git a/arch/arm64/boot/dts/apm-storm.dtsi b/arch/arm64/boot/dts/apm-storm.dtsi
index 295c72d52a1f..f1ad9c2ab2e9 100644
--- a/arch/arm64/boot/dts/apm-storm.dtsi
+++ b/arch/arm64/boot/dts/apm-storm.dtsi
@@ -599,7 +599,7 @@
compatible = "apm,xgene-enet";
status = "disabled";
reg = <0x0 0x17020000 0x0 0xd100>,
- <0x0 0X17030000 0x0 0X400>,
+ <0x0 0X17030000 0x0 0Xc300>,
<0x0 0X10000000 0x0 0X200>;
reg-names = "enet_csr", "ring_csr", "ring_cmd";
interrupts = <0x0 0x3c 0x4>;
@@ -624,9 +624,9 @@
sgenet0: ethernet@1f210000 {
compatible = "apm,xgene-enet";
status = "disabled";
- reg = <0x0 0x1f210000 0x0 0x10000>,
- <0x0 0x1f200000 0x0 0X10000>,
- <0x0 0x1B000000 0x0 0X20000>;
+ reg = <0x0 0x1f210000 0x0 0xd100>,
+ <0x0 0x1f200000 0x0 0Xc300>,
+ <0x0 0x1B000000 0x0 0X200>;
reg-names = "enet_csr", "ring_csr", "ring_cmd";
interrupts = <0x0 0xA0 0x4>;
dma-coherent;
@@ -639,7 +639,7 @@
compatible = "apm,xgene-enet";
status = "disabled";
reg = <0x0 0x1f610000 0x0 0xd100>,
- <0x0 0x1f600000 0x0 0X400>,
+ <0x0 0x1f600000 0x0 0Xc300>,
<0x0 0x18000000 0x0 0X200>;
reg-names = "enet_csr", "ring_csr", "ring_cmd";
interrupts = <0x0 0x60 0x4>;
diff --git a/arch/arm64/configs/defconfig b/arch/arm64/configs/defconfig
index 4ce602c2c6de..dd301be89ecc 100644
--- a/arch/arm64/configs/defconfig
+++ b/arch/arm64/configs/defconfig
@@ -35,6 +35,9 @@ CONFIG_MODULE_UNLOAD=y
CONFIG_ARCH_THUNDER=y
CONFIG_ARCH_VEXPRESS=y
CONFIG_ARCH_XGENE=y
+CONFIG_PCI=y
+CONFIG_PCI_MSI=y
+CONFIG_PCI_XGENE=y
CONFIG_SMP=y
CONFIG_PREEMPT=y
CONFIG_KSM=y
@@ -52,6 +55,7 @@ CONFIG_IP_PNP_DHCP=y
CONFIG_IP_PNP_BOOTP=y
# CONFIG_INET_LRO is not set
# CONFIG_IPV6 is not set
+CONFIG_BPF_JIT=y
# CONFIG_WIRELESS is not set
CONFIG_NET_9P=y
CONFIG_NET_9P_VIRTIO=y
@@ -65,16 +69,17 @@ CONFIG_VIRTIO_BLK=y
CONFIG_BLK_DEV_SD=y
# CONFIG_SCSI_LOWLEVEL is not set
CONFIG_ATA=y
+CONFIG_SATA_AHCI=y
+CONFIG_SATA_AHCI_PLATFORM=y
CONFIG_AHCI_XGENE=y
-CONFIG_PHY_XGENE=y
CONFIG_PATA_PLATFORM=y
CONFIG_PATA_OF_PLATFORM=y
CONFIG_NETDEVICES=y
CONFIG_TUN=y
CONFIG_VIRTIO_NET=y
+CONFIG_NET_XGENE=y
CONFIG_SMC91X=y
CONFIG_SMSC911X=y
-CONFIG_NET_XGENE=y
# CONFIG_WLAN is not set
CONFIG_INPUT_EVDEV=y
# CONFIG_SERIO_SERPORT is not set
@@ -87,6 +92,11 @@ CONFIG_SERIAL_AMBA_PL011_CONSOLE=y
CONFIG_SERIAL_OF_PLATFORM=y
CONFIG_VIRTIO_CONSOLE=y
# CONFIG_HW_RANDOM is not set
+# CONFIG_HMC_DRV is not set
+CONFIG_SPI=y
+CONFIG_SPI_PL022=y
+CONFIG_GPIO_PL061=y
+CONFIG_GPIO_XGENE=y
# CONFIG_HWMON is not set
CONFIG_REGULATOR=y
CONFIG_REGULATOR_FIXED_VOLTAGE=y
@@ -97,13 +107,25 @@ CONFIG_LOGO=y
# CONFIG_LOGO_LINUX_MONO is not set
# CONFIG_LOGO_LINUX_VGA16 is not set
CONFIG_USB=y
+CONFIG_USB_EHCI_HCD=y
+CONFIG_USB_EHCI_HCD_PLATFORM=y
CONFIG_USB_ISP1760_HCD=y
+CONFIG_USB_OHCI_HCD=y
+CONFIG_USB_OHCI_HCD_PLATFORM=y
CONFIG_USB_STORAGE=y
+CONFIG_USB_ULPI=y
CONFIG_MMC=y
CONFIG_MMC_ARMMMCI=y
+CONFIG_MMC_SDHCI=y
+CONFIG_MMC_SDHCI_PLTFM=y
+CONFIG_MMC_SPI=y
+CONFIG_RTC_CLASS=y
+CONFIG_RTC_DRV_EFI=y
+CONFIG_RTC_DRV_XGENE=y
CONFIG_VIRTIO_BALLOON=y
CONFIG_VIRTIO_MMIO=y
# CONFIG_IOMMU_SUPPORT is not set
+CONFIG_PHY_XGENE=y
CONFIG_EXT2_FS=y
CONFIG_EXT3_FS=y
# CONFIG_EXT3_DEFAULTS_TO_ORDERED is not set
diff --git a/arch/arm64/include/asm/memory.h b/arch/arm64/include/asm/memory.h
index ccc7087d3c4e..a62cd077457b 100644
--- a/arch/arm64/include/asm/memory.h
+++ b/arch/arm64/include/asm/memory.h
@@ -142,7 +142,7 @@ static inline void *phys_to_virt(phys_addr_t x)
* virt_to_page(k) convert a _valid_ virtual address to struct page *
* virt_addr_valid(k) indicates whether a virtual address is valid
*/
-#define ARCH_PFN_OFFSET PHYS_PFN_OFFSET
+#define ARCH_PFN_OFFSET ((unsigned long)PHYS_PFN_OFFSET)
#define virt_to_page(kaddr) pfn_to_page(__pa(kaddr) >> PAGE_SHIFT)
#define virt_addr_valid(kaddr) pfn_valid(__pa(kaddr) >> PAGE_SHIFT)
diff --git a/arch/arm64/include/asm/unistd32.h b/arch/arm64/include/asm/unistd32.h
index da1f06b535e3..9dfdac4a74a1 100644
--- a/arch/arm64/include/asm/unistd32.h
+++ b/arch/arm64/include/asm/unistd32.h
@@ -792,3 +792,5 @@ __SYSCALL(__NR_renameat2, sys_renameat2)
__SYSCALL(__NR_getrandom, sys_getrandom)
#define __NR_memfd_create 385
__SYSCALL(__NR_memfd_create, sys_memfd_create)
+#define __NR_bpf 386
+__SYSCALL(__NR_bpf, sys_bpf)
diff --git a/arch/arm64/kernel/efi-entry.S b/arch/arm64/kernel/efi-entry.S
index 619b1dd7bcde..d18a44940968 100644
--- a/arch/arm64/kernel/efi-entry.S
+++ b/arch/arm64/kernel/efi-entry.S
@@ -54,18 +54,17 @@ ENTRY(efi_stub_entry)
b.eq efi_load_fail
/*
- * efi_entry() will have relocated the kernel image if necessary
- * and we return here with device tree address in x0 and the kernel
- * entry point stored at *image_addr. Save those values in registers
- * which are callee preserved.
+ * efi_entry() will have copied the kernel image if necessary and we
+ * return here with device tree address in x0 and the kernel entry
+ * point stored at *image_addr. Save those values in registers which
+ * are callee preserved.
*/
mov x20, x0 // DTB address
ldr x0, [sp, #16] // relocated _text address
mov x21, x0
/*
- * Flush dcache covering current runtime addresses
- * of kernel text/data. Then flush all of icache.
+ * Calculate size of the kernel Image (same for original and copy).
*/
adrp x1, _text
add x1, x1, #:lo12:_text
@@ -73,9 +72,24 @@ ENTRY(efi_stub_entry)
add x2, x2, #:lo12:_edata
sub x1, x2, x1
+ /*
+ * Flush the copied Image to the PoC, and ensure it is not shadowed by
+ * stale icache entries from before relocation.
+ */
bl __flush_dcache_area
ic ialluis
+ /*
+ * Ensure that the rest of this function (in the original Image) is
+ * visible when the caches are disabled. The I-cache can't have stale
+ * entries for the VA range of the current image, so no maintenance is
+ * necessary.
+ */
+ adr x0, efi_stub_entry
+ adr x1, efi_stub_entry_end
+ sub x1, x1, x0
+ bl __flush_dcache_area
+
/* Turn off Dcache and MMU */
mrs x0, CurrentEL
cmp x0, #CurrentEL_EL2
@@ -105,4 +119,5 @@ efi_load_fail:
ldp x29, x30, [sp], #32
ret
+efi_stub_entry_end:
ENDPROC(efi_stub_entry)
diff --git a/arch/arm64/kernel/insn.c b/arch/arm64/kernel/insn.c
index e007714ded04..8cd27fedc8b6 100644
--- a/arch/arm64/kernel/insn.c
+++ b/arch/arm64/kernel/insn.c
@@ -163,9 +163,10 @@ static int __kprobes aarch64_insn_patch_text_cb(void *arg)
* which ends with "dsb; isb" pair guaranteeing global
* visibility.
*/
- atomic_set(&pp->cpu_count, -1);
+ /* Notify other processors with an additional increment. */
+ atomic_inc(&pp->cpu_count);
} else {
- while (atomic_read(&pp->cpu_count) != -1)
+ while (atomic_read(&pp->cpu_count) <= num_online_cpus())
cpu_relax();
isb();
}
diff --git a/arch/arm64/kernel/psci.c b/arch/arm64/kernel/psci.c
index d56394b6dc99..3425f311c49e 100644
--- a/arch/arm64/kernel/psci.c
+++ b/arch/arm64/kernel/psci.c
@@ -528,7 +528,7 @@ static int __maybe_unused cpu_psci_cpu_suspend(unsigned long index)
if (WARN_ON_ONCE(!index))
return -EINVAL;
- if (state->type == PSCI_POWER_STATE_TYPE_STANDBY)
+ if (state[index - 1].type == PSCI_POWER_STATE_TYPE_STANDBY)
ret = psci_ops.cpu_suspend(state[index - 1], 0);
else
ret = __cpu_suspend(index, psci_suspend_finisher);
diff --git a/arch/arm64/lib/clear_user.S b/arch/arm64/lib/clear_user.S
index 6e0ed93d51fe..c17967fdf5f6 100644
--- a/arch/arm64/lib/clear_user.S
+++ b/arch/arm64/lib/clear_user.S
@@ -46,7 +46,7 @@ USER(9f, strh wzr, [x0], #2 )
sub x1, x1, #2
4: adds x1, x1, #1
b.mi 5f
- strb wzr, [x0]
+USER(9f, strb wzr, [x0] )
5: mov x0, #0
ret
ENDPROC(__clear_user)
diff --git a/arch/arm64/mm/mmu.c b/arch/arm64/mm/mmu.c
index 0bf90d26e745..f4f8b500f74c 100644
--- a/arch/arm64/mm/mmu.c
+++ b/arch/arm64/mm/mmu.c
@@ -202,7 +202,7 @@ static void __init alloc_init_pmd(pud_t *pud, unsigned long addr,
}
static void __init alloc_init_pud(pgd_t *pgd, unsigned long addr,
- unsigned long end, unsigned long phys,
+ unsigned long end, phys_addr_t phys,
int map_io)
{
pud_t *pud;
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