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linux/arch/arm64/kernel
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Andy Gross bec9918bb4 firmware: qcom: scm: Fix interrupted SCM calls 
[ Upstream commit 82bcd08702 ]

This patch adds a Qualcomm specific quirk to the arm_smccc_smc call.

On Qualcomm ARM64 platforms, the SMC call can return before it has
completed.  If this occurs, the call can be restarted, but it requires
using the returned session ID value from the interrupted SMC call.

The quirk stores off the session ID from the interrupted call in the
quirk structure so that it can be used by the caller.

This patch folds in a fix given by Sricharan R:
https://lkml.org/lkml/2016/9/28/272

Signed-off-by: Andy Gross <andy.gross@linaro.org>
Reviewed-by: Will Deacon <will.deacon@arm.com>
Signed-off-by: Will Deacon <will.deacon@arm.com>
Signed-off-by: Sasha Levin <alexander.levin@verizon.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
History 2017-04-12 12:41:21 +02:00
..
probes arm64: migrate exception table users off module.h and onto extable.h 2016-09-20 09:36:21 +01:00
vdso arm64: Add support for CLOCK_MONOTONIC_RAW in clock_gettime() vDSO 2016-07-12 16:06:32 +01:00
.gitignore arm64: Build infrastructure 2012-09-17 13:42:21 +01:00
acpi.c ARM64: ACPI: enable ACPI_SPCR_TABLE 2016-09-28 17:46:57 +02:00
acpi_numa.c arm64/numa: avoid inconsistent information to be printed 2016-09-09 14:59:08 +01:00
acpi_parking_protocol.c arm64: kernel: acpi: fix ioremap in ACPI parking protocol cpu_postboot 2016-02-26 15:39:52 +00:00
alternative.c arm64: alternative: Add support for patching adrp instructions 2016-09-09 15:03:28 +01:00
arm64ksyms.c arm: kernel: Add SMC structure parameter 2017-04-12 12:41:21 +02:00
armv8_deprecated.c arm64: swp emulation: bound LL/SC retries before rescheduling 2016-10-19 15:37:23 +01:00
asm-offsets.c arm: kernel: Add SMC structure parameter 2017-04-12 12:41:21 +02:00
cacheinfo.c arm64: simplify sysreg manipulation 2016-09-09 11:43:50 +01:00
cpu-reset.h arm64: Add back cpu reset routines 2016-06-27 16:31:25 +01:00
cpu-reset.S arm64: Add back cpu reset routines 2016-06-27 16:31:25 +01:00
cpu_errata.c arm64: cpufeature: Schedule enable() calls instead of calling them via IPI 2016-10-20 09:50:53 +01:00
cpu_ops.c arm64: apply __ro_after_init to some objects 2016-08-22 12:32:29 +01:00
cpufeature.c arm64: fix erroneous __raw_read_system_reg() cases 2017-03-12 06:41:48 +01:00
cpuidle.c arm64: add support for ACPI Low Power Idle(LPI) 2016-07-21 23:29:38 +02:00
cpuinfo.c arm64: Rearrange CPU errata workaround checks 2016-09-09 15:03:28 +01:00
debug-monitors.c arm64: simplify sysreg manipulation 2016-09-09 11:43:50 +01:00
efi-entry.S arm64: move early boot code to the .init segment 2016-04-14 18:11:30 +01:00
efi.c arm64: efi: avoid block mappings for unaligned UEFI memory regions 2016-07-01 11:56:26 +01:00
entry-fpsimd.S arm64: fpsimd: fix a typo in fpsimd_save_partial_state ENDPROC 2014-07-31 11:42:42 +01:00
entry-ftrace.S ftrace: Remove CONFIG_HAVE_FUNCTION_GRAPH_FP_TEST from config 2016-08-24 12:15:13 +02:00
entry.S arm64: avoid returning from bad_mode 2017-01-26 08:24:40 +01:00
entry32.S arm64: entry32: remove pointless register assignment 2015-07-10 16:47:13 +01:00
fpsimd.c arm64/FP/SIMD: Convert to hotplug state machine 2016-09-19 21:44:25 +02:00
ftrace.c ftrace: Add return address pointer to ftrace_ret_stack 2016-08-24 12:15:14 +02:00
head.S arm64: kernel: Init MDCR_EL2 even in the absence of a PMU 2016-10-17 15:54:30 +01:00
hibernate-asm.S arm64: Introduce raw_{d,i}cache_line_size 2016-09-09 15:03:29 +01:00
hibernate.c Revert "arm64: hibernate: Refuse to hibernate if the boot cpu is offline" 2016-08-26 11:21:25 +01:00
hw_breakpoint.c arm64: hw_breakpoint: convert CPU hotplug notifier to new infrastructure 2016-09-01 13:45:51 +01:00
hyp-stub.S arm64: Add back cpu reset routines 2016-06-27 16:31:25 +01:00
image.h arm64 updates for 4.7: 2016-05-16 17:17:24 -07:00
insn.c arm64: insn: Add helpers for adrp offsets 2016-09-09 15:03:28 +01:00
io.c arm64: optimize memcpy_{from,to}io() and memset_io() 2014-11-06 17:25:27 +00:00
irq.c arm64: remove irq_count and do_softirq_own_stack() 2015-12-21 17:26:01 +00:00
jump_label.c jump_label: Rename JUMP_LABEL_{EN,DIS}ABLE to JUMP_LABEL_{JMP,NOP} 2015-08-03 11:34:12 +02:00
kaslr.c arm64: kaslr: Fix up the kernel image alignment 2017-03-30 09:41:26 +02:00
kgdb.c arm64: kgdb: handle read-only text / modules 2016-09-23 11:25:01 +01:00
kuser32.S arm64: Add __NR_* definitions for compat syscalls 2014-07-10 11:02:40 +01:00
machine_kexec.c arm64/kexec: Add pr_debug output 2016-06-27 16:31:26 +01:00
Makefile arm64: Set UTS_MACHINE in the Makefile 2016-08-31 12:31:38 +01:00
module-plts.c arm64: add support for module PLTs 2016-02-24 14:57:24 +00:00
module.c arm64: add support for kernel ASLR 2016-02-24 14:57:27 +00:00
module.lds arm64: add support for module PLTs 2016-02-24 14:57:24 +00:00
paravirt.c arm64: introduce CONFIG_PARAVIRT, PARAVIRT_TIME_ACCOUNTING and pv_time_ops 2015-12-21 14:40:54 +00:00
pci.c arm64: PCI: Add local struct device pointers 2017-04-12 12:41:17 +02:00
perf_callchain.c perf core: Add a 'nr' field to perf_event_callchain_context 2016-05-16 23:11:51 -03:00
perf_event.c KVM: arm64: Fix the issues when guest PMCCFILTR is configured 2016-11-18 09:06:58 +00:00
perf_regs.c perf: Move task_pt_regs sampling into arch code 2015-01-09 11:12:28 +01:00
process.c arm64: fix show_regs fallout from KERN_CONT changes 2016-10-20 15:27:56 +01:00
psci.c ARM: 8511/1: ARM64: kernel: PSCI: move PSCI idle management code to drivers/firmware 2016-02-11 15:33:38 +00:00
ptrace.c arm64/ptrace: Reject attempts to set incomplete hardware breakpoint fields 2017-01-26 08:24:41 +01:00
relocate_kernel.S arm64: Introduce raw_{d,i}cache_line_size 2016-09-09 15:03:29 +01:00
return_address.c arm64: ftrace: fix a stack tracer's output under function graph tracer 2015-12-21 17:26:02 +00:00
setup.c arm64: Set UTS_MACHINE in the Makefile 2016-08-31 12:31:38 +01:00
signal.c arm64: factor work_pending state machine to C 2016-08-22 10:00:48 +01:00
signal32.c arm64: Fix misspellings in comments. 2016-03-04 18:19:17 +00:00
sleep.S kprobes: Unpoison stack in jprobe_return() for KASAN 2016-10-16 11:02:31 +02:00
smccc-call.S firmware: qcom: scm: Fix interrupted SCM calls 2017-04-12 12:41:21 +02:00
smp.c arm64: kernel: numa: fix ACPI boot cpu numa node mapping 2016-10-17 15:49:23 +01:00
smp_spin_table.c arm64: vmlinux.ld: Add mmuoff data sections and move mmuoff text into idmap 2016-08-25 18:00:30 +01:00
stacktrace.c arm64: fix dump_backtrace/unwind_frame with NULL tsk 2016-09-26 14:24:01 +01:00
suspend.c arm64: suspend: Reconfigure PSTATE after resume from idle 2016-10-20 09:50:54 +01:00
sys.c arm64: compat: Check for AArch32 state 2016-04-20 12:22:42 +01:00
sys32.c arm64: fix implementation of mmap2 compat syscall 2015-03-19 10:43:51 +00:00
sys_compat.c arm64: simplify sysreg manipulation 2016-09-09 11:43:50 +01:00
time.c arm64: ftrace: fix a stack tracer's output under function graph tracer 2015-12-21 17:26:02 +00:00
topology.c arm64: kernel: remove non-legit DT warnings when booting using ACPI 2015-07-27 11:08:41 +01:00
trace-events-emulation.h arm64: Trace emulation of AArch32 legacy instructions 2014-11-20 16:35:02 +00:00
traps.c arm64: avoid returning from bad_mode 2017-01-26 08:24:40 +01:00
vdso.c arm/arm64: arch_timer: Use archdata to indicate vdso suitability 2016-09-23 17:19:25 +01:00
vmlinux.lds.S nmi_backtrace: generate one-line reports for idle cpus 2016-10-07 18:46:30 -07:00