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author | Linus Torvalds <torvalds@linux-foundation.org> | 2015-04-16 13:53:32 -0500 |
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committer | Linus Torvalds <torvalds@linux-foundation.org> | 2015-04-16 13:53:32 -0500 |
commit | d19d5efd8c8840aa4f38a6dfbfe500d8cc27de46 (patch) | |
tree | 2e2f4f57de790c7de2ccd6d1afbec8695b2c7a46 /arch/powerpc/platforms/powernv/setup.c | |
parent | 34c9a0ffc75ad25b6a60f61e27c4a4b1189b8085 (diff) | |
parent | 2fe0753d49402aee325cc39c476b46fd51a8afec (diff) | |
download | linux-d19d5efd8c8840aa4f38a6dfbfe500d8cc27de46.tar.gz linux-d19d5efd8c8840aa4f38a6dfbfe500d8cc27de46.tar.xz |
Merge tag 'powerpc-4.1-1' of git://git.kernel.org/pub/scm/linux/kernel/git/mpe/linux
Pull powerpc updates from Michael Ellerman:
- Numerous minor fixes, cleanups etc.
- More EEH work from Gavin to remove its dependency on device_nodes.
- Memory hotplug implemented entirely in the kernel from Nathan
Fontenot.
- Removal of redundant CONFIG_PPC_OF by Kevin Hao.
- Rewrite of VPHN parsing logic & tests from Greg Kurz.
- A fix from Nish Aravamudan to reduce memory usage by clamping
nodes_possible_map.
- Support for pstore on powernv from Hari Bathini.
- Removal of old powerpc specific byte swap routines by David Gibson.
- Fix from Vasant Hegde to prevent the flash driver telling you it was
flashing your firmware when it wasn't.
- Patch from Ben Herrenschmidt to add an OPAL heartbeat driver.
- Fix for an oops causing get/put_cpu_var() imbalance in perf by Jan
Stancek.
- Some fixes for migration from Tyrel Datwyler.
- A new syscall to switch the cpu endian by Michael Ellerman.
- Large series from Wei Yang to implement SRIOV, reviewed and acked by
Bjorn.
- A fix for the OPAL sensor driver from Cédric Le Goater.
- Fixes to get STRICT_MM_TYPECHECKS building again by Michael Ellerman.
- Large series from Daniel Axtens to make our PCI hooks per PHB rather
than per machine.
- Small patch from Sam Bobroff to explicitly abort non-suspended
transactions on syscalls, plus a test to exercise it.
- Numerous reworks and fixes for the 24x7 PMU from Sukadev Bhattiprolu.
- Small patch to enable the hard lockup detector from Anton Blanchard.
- Fix from Dave Olson for missing L2 cache information on some CPUs.
- Some fixes from Michael Ellerman to get Cell machines booting again.
- Freescale updates from Scott: Highlights include BMan device tree
nodes, an MSI erratum workaround, a couple minor performance
improvements, config updates, and misc fixes/cleanup.
* tag 'powerpc-4.1-1' of git://git.kernel.org/pub/scm/linux/kernel/git/mpe/linux: (196 commits)
powerpc/powermac: Fix build error seen with powermac smp builds
powerpc/pseries: Fix compile of memory hotplug without CONFIG_MEMORY_HOTREMOVE
powerpc: Remove PPC32 code from pseries specific find_and_init_phbs()
powerpc/cell: Fix iommu breakage caused by controller_ops change
powerpc/eeh: Fix crash in eeh_add_device_early() on Cell
powerpc/perf: Cap 64bit userspace backtraces to PERF_MAX_STACK_DEPTH
powerpc/perf/hv-24x7: Fail 24x7 initcall if create_events_from_catalog() fails
powerpc/pseries: Correct memory hotplug locking
powerpc: Fix missing L2 cache size in /sys/devices/system/cpu
powerpc: Add ppc64 hard lockup detector support
oprofile: Disable oprofile NMI timer on ppc64
powerpc/perf/hv-24x7: Add missing put_cpu_var()
powerpc/perf/hv-24x7: Break up single_24x7_request
powerpc/perf/hv-24x7: Define update_event_count()
powerpc/perf/hv-24x7: Whitespace cleanup
powerpc/perf/hv-24x7: Define add_event_to_24x7_request()
powerpc/perf/hv-24x7: Rename hv_24x7_event_update
powerpc/perf/hv-24x7: Move debug prints to separate function
powerpc/perf/hv-24x7: Drop event_24x7_request()
powerpc/perf/hv-24x7: Use pr_devel() to log message
...
Conflicts:
tools/testing/selftests/powerpc/Makefile
tools/testing/selftests/powerpc/tm/Makefile
Diffstat (limited to 'arch/powerpc/platforms/powernv/setup.c')
-rw-r--r-- | arch/powerpc/platforms/powernv/setup.c | 54 |
1 files changed, 20 insertions, 34 deletions
diff --git a/arch/powerpc/platforms/powernv/setup.c b/arch/powerpc/platforms/powernv/setup.c index d2de7d5d7574..16fdcb23f4c3 100644 --- a/arch/powerpc/platforms/powernv/setup.c +++ b/arch/powerpc/platforms/powernv/setup.c @@ -32,7 +32,6 @@ #include <asm/machdep.h> #include <asm/firmware.h> #include <asm/xics.h> -#include <asm/rtas.h> #include <asm/opal.h> #include <asm/kexec.h> #include <asm/smp.h> @@ -278,20 +277,6 @@ static void __init pnv_setup_machdep_opal(void) ppc_md.handle_hmi_exception = opal_handle_hmi_exception; } -#ifdef CONFIG_PPC_POWERNV_RTAS -static void __init pnv_setup_machdep_rtas(void) -{ - if (rtas_token("get-time-of-day") != RTAS_UNKNOWN_SERVICE) { - ppc_md.get_boot_time = rtas_get_boot_time; - ppc_md.get_rtc_time = rtas_get_rtc_time; - ppc_md.set_rtc_time = rtas_set_rtc_time; - } - ppc_md.restart = rtas_restart; - pm_power_off = rtas_power_off; - ppc_md.halt = rtas_halt; -} -#endif /* CONFIG_PPC_POWERNV_RTAS */ - static u32 supported_cpuidle_states; int pnv_save_sprs_for_winkle(void) @@ -409,37 +394,39 @@ static int __init pnv_init_idle_states(void) { struct device_node *power_mgt; int dt_idle_states; - const __be32 *idle_state_flags; - u32 len_flags, flags; + u32 *flags; int i; supported_cpuidle_states = 0; if (cpuidle_disable != IDLE_NO_OVERRIDE) - return 0; + goto out; if (!firmware_has_feature(FW_FEATURE_OPALv3)) - return 0; + goto out; power_mgt = of_find_node_by_path("/ibm,opal/power-mgt"); if (!power_mgt) { pr_warn("opal: PowerMgmt Node not found\n"); - return 0; + goto out; + } + dt_idle_states = of_property_count_u32_elems(power_mgt, + "ibm,cpu-idle-state-flags"); + if (dt_idle_states < 0) { + pr_warn("cpuidle-powernv: no idle states found in the DT\n"); + goto out; } - idle_state_flags = of_get_property(power_mgt, - "ibm,cpu-idle-state-flags", &len_flags); - if (!idle_state_flags) { - pr_warn("DT-PowerMgmt: missing ibm,cpu-idle-state-flags\n"); - return 0; + flags = kzalloc(sizeof(*flags) * dt_idle_states, GFP_KERNEL); + if (of_property_read_u32_array(power_mgt, + "ibm,cpu-idle-state-flags", flags, dt_idle_states)) { + pr_warn("cpuidle-powernv: missing ibm,cpu-idle-state-flags in DT\n"); + goto out_free; } - dt_idle_states = len_flags / sizeof(u32); + for (i = 0; i < dt_idle_states; i++) + supported_cpuidle_states |= flags[i]; - for (i = 0; i < dt_idle_states; i++) { - flags = be32_to_cpu(idle_state_flags[i]); - supported_cpuidle_states |= flags; - } if (!(supported_cpuidle_states & OPAL_PM_SLEEP_ENABLED_ER1)) { patch_instruction( (unsigned int *)pnv_fastsleep_workaround_at_entry, @@ -449,6 +436,9 @@ static int __init pnv_init_idle_states(void) PPC_INST_NOP); } pnv_alloc_idle_core_states(); +out_free: + kfree(flags); +out: return 0; } @@ -465,10 +455,6 @@ static int __init pnv_probe(void) if (firmware_has_feature(FW_FEATURE_OPAL)) pnv_setup_machdep_opal(); -#ifdef CONFIG_PPC_POWERNV_RTAS - else if (rtas.base) - pnv_setup_machdep_rtas(); -#endif /* CONFIG_PPC_POWERNV_RTAS */ pr_debug("PowerNV detected !\n"); |