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2013-09-03MIPS: Netlogic: XLP2xx update for I2C controllerGanesan Ramalingam
XLP2xx has a new I2C controller which has 4 buses connected to it. Update the IO offset and IRQ mapping code to reflect this. Signed-off-by: Ganesan Ramalingam <ganesanr@broadcom.com> Signed-off-by: Jayachandran C <jchandra@broadcom.com> Cc: linux-mips@linux-mips.org Patchwork: https://patchwork.linux-mips.org/patch/5707/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2013-09-03MIPS: Netlogic: Core wakeup changes for XLP2XXJayachandran C
On XLP2xx, wakeup code does not need to enable clock on the core. Update xlp/wakeup.c to handle this. Signed-off-by: Jayachandran C <jchandra@broadcom.com> Cc: linux-mips@linux-mips.org Patchwork: https://patchwork.linux-mips.org/patch/5703/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2013-09-03MIPS: Netlogic: XLP2XX CPU and PIC frequencyGanesan Ramalingam
Add code to calculate the CPU and PIC frequency for XLP2XX SoCs. Since the PIC frequency on XLP2XX can be configured, add a new macro pic_timer_freq() to be used in netlogic/common/time.c. Signed-off-by: Jayachandran C <jchandra@broadcom.com> Cc: linux-mips@linux-mips.org Cc: Ganesan Ramalingam <ganesanr@broadcom.com> Patchwork: http://patchwork.linux-mips.org/patch/5701/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2013-09-03MIPS: Netlogic: Call xlp_mmu_init on all threadsJayachandran C
The config7/config4 register has to be written on all the threads. This does not cause any problems in XLP, but is needed for XLPII Signed-off-by: Jayachandran C <jchandra@broadcom.com> Cc: linux-mips@linux-mips.org Patchwork: https://patchwork.linux-mips.org/patch/5700/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2013-09-03MIPS: Netlogic: Add support for XLP2XXJayachandran C
XLP2XX is first in the series of 28nm XLPII processors. The changes are to: * Add processor ID for XLP2XX to asm/cpu.h and kernel/cpu-probe.c. * Add a cpu_is_xlpii() function to check for XLPII processors. * Update xlp_mmu_init() to use config4 to enable extended TLB. Signed-off-by: Jayachandran C <jchandra@broadcom.com> Cc: linux-mips@linux-mips.org Patchwork: https://patchwork.linux-mips.org/patch/5698/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2013-09-03MIPS: Netlogic: Fix DT flash size parameterJayachandran C
The flash chipselects can span 32MB, fix this in the built-in device tree. Signed-off-by: Jayachandran C <jchandra@broadcom.com> Cc: linux-mips@linux-mips.org Patchwork: https://patchwork.linux-mips.org/patch/5704/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2013-09-03MIPS: Netlogic: Remove memory section from built-in DTJayachandran C
Do not pass a memory section in the built-in DTB, and let the boot code use the values from the DRAM BARs. Signed-off-by: Jayachandran C <jchandra@broadcom.com> Cc: linux-mips@linux-mips.org Patchwork: https://patchwork.linux-mips.org/patch/5699/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2013-09-03MIPS: Netlogic: Read memory from DRAM BARsJayachandran C
Read the memory from the Bridge DRAM BARs, if it is not passed in from the device tree. This will allow us to remove memory configuration from built in device trees. Signed-off-by: Jayachandran C <jchandra@broadcom.com> Cc: linux-mips@linux-mips.org Patchwork: https://patchwork.linux-mips.org/patch/5743/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2013-09-03MIPS: ath79: Switch to the clkdev frameworkGabor Juhos
The ath79 code uses static clock devices and provides its own clk_{get,put} implementations. Change the code to use dynamically allocated clock devices and register the clocks within the clkdev framework. Additionally, remove the local clk_{get,put} implementation. The clkdev framework has a common implementation of those. Also move the call of ath79_clock_init() from plat_mem_init() to plat_time_init(). Otherwise it would not be possible to use memory allocation functions from ath79clock_init() becasuse the memory subsystem is not yet initialized when plat_mem_init() runs. Signed-off-by: Gabor Juhos <juhosg@openwrt.org> Cc: linux-mips@linux-mips.org Patchwork: https://patchwork.linux-mips.org/patch/5780/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2013-09-03MIPS: ath79: Use local variables for clock ratesGabor Juhos
Use local variables for ref, cpu, ddr and ahb rates in SoC specific clock init functions. The patch has no functional changes, it is an interim change in preparation of the next patch. Signed-off-by: Gabor Juhos <juhosg@openwrt.org> Cc: linux-mips@linux-mips.org Patchwork: https://patchwork.linux-mips.org/patch/5781/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2013-09-03MIPS: ath79: Use ath79_get_sys_clk_rate to get basic clock ratesGabor Juhos
Instead of accessing the rate field of the static clock devices directly, use the recently introduced helper function to get the rate of the basic clocks. The static ath79_{ahb,cpu,ddr,ref}_clk variables will be removed by a subsequent patch. The actual change is in preparation of that. Also move the clock frequency printing code into the plat_time_init function. We are getting the cpu clock rate there already so we can save an extra call of the helper. Signed-off-by: Gabor Juhos <juhosg@openwrt.org> Cc: linux-mips@linux-mips.org Patchwork: https://patchwork.linux-mips.org/patch/5782/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2013-09-03MIPS: ath79: Use a helper function to get system clock ratesGabor Juhos
The ath79 platform uses similar code to get the rate of various clocks during init. Separate the similar code into a new helper function and use that to avoid code duplication. Signed-off-by: Gabor Juhos <juhosg@openwrt.org> Cc: linux-mips@linux-mips.org Patchwork: https://patchwork.linux-mips.org/patch/5778/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2013-09-03MIPS: ath79: Use local ref clock rate in ar934x_get_pll_freqGabor Juhos
The reference clock rate is passed in the first argument of the function. Use that instead of the rate of the global ath79_ref_clk variable. Signed-off-by: Gabor Juhos <juhosg@openwrt.org> Cc: linux-mips@linux-mips.org Patchwork: https://patchwork.linux-mips.org/patch/5779/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2013-09-03MIPS: ath79: Fix ar933x watchdog clockFelix Fietkau
The watchdog device on the AR933x is connected to the AHB clock, however the current code uses the reference clock. Due to the wrong rate, the watchdog driver can't calculate correct register values for a given timeout value and the watchdog unexpectedly restarts the system. The code uses the wrong value since the initial commit 04225e1d227c8e68d685936ecf42ac175fec0e54 (MIPS: ath79: add AR933X specific clock init) The patch fixes the code to use the correct clock rate to avoid the problem. Cc: stable@vger.kernel.org Signed-off-by: Felix Fietkau <nbd@openwrt.org> Signed-off-by: Gabor Juhos <juhosg@openwrt.org> Cc: linux-mips@linux-mips.org Cc: stable@vger.kernel.org Patchwork: https://patchwork.linux-mips.org/patch/5777/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2013-09-03MIPS: ath79: Don't hardwire cpu_has_dsp{2} to 0Gabor Juhos
The ath79 code supports various SoCs which are using either a 24Kc or a 74Kc core. The 74Kc core has DSP support, so don't hardwire the values to zero. Commit 00dc5ce2a653a332190aa29b2e1f3bceaa7d5b8d (MIPS: ath79: don't hardcode the unavailability of the DSP ASE) has fixed this already, but that change got reverted by 475032564ed96c94c085e3e7a90e07d150a7cec9 (MIPS: Hardwire detection of DSP ASE Rev 2 for systems, as required.) Reported-by: Helmut Schaa <helmut.schaa@googlemail.com> Signed-off-by: Gabor Juhos <juhosg@openwrt.org> Cc: linux-mips@linux-mips.org Patchwork: https://patchwork.linux-mips.org/patch/5750/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2013-09-03MIPS: Lantiq: Add defconfig for xway SoCJohn Crispin
This add a default config for the Lantiq XWAY SoC. Signed-off-by: John Crispin <blogic@openwrt.org> Cc: linux-mips@linux-mips.org Patchwork: https://patchwork.linux-mips.org/patch/5796/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2013-09-03MIPS: Lantiq: Falcon: fix asc clock definitionThomas Langer
The clocks of the serial ports were not setup properly. Signed-off-by: Thomas Langer <thomas.langer@lantiq.com> Acked-by: John Crispin <blogic@openwrt.org> Cc: linux-mips@linux-mips.org Patchwork: https://patchwork.linux-mips.org/patch/5659/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2013-09-03MIPS: Lantiq: Falcon: add cpu-feature-override.hThomas Langer
Add cpu-feature-override.h for the GPON SoC Signed-off-by: Thomas Langer <thomas.langer@lantiq.com> Acked-by: John Crispin <blogic@openwrt.org> Cc: linux-mips@linux-mips.org Patchwork: https://patchwork.linux-mips.org/patch/5658/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2013-09-03MIPS: Lantiq: Adds minimal dcdc driverJohn Crispin
This driver so far only reads the core voltage. Signed-off-by: John Crispin <blogic@openwrt.org> Cc: linux-mips@linux-mips.org Patchwork: https://patchwork.linux-mips.org/patch/5677/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2013-09-03NTB: Xeon Errata WorkaroundJon Mason
There is a Xeon hardware errata related to writes to SDOORBELL or B2BDOORBELL in conjunction with inbound access to NTB MMIO Space, which may hang the system. To workaround this issue, use one of the memory windows to access the interrupt and scratch pad registers on the remote system. This bypasses the issue, but removes one of the memory windows from use by the transport. This reduction of MWs necessitates adding some logic to determine the number of available MWs. Since some NTB usage methodologies may have unidirectional traffic, the ability to disable the workaround via modparm has been added. See BF113 in http://www.intel.com/content/dam/www/public/us/en/documents/specification-updates/xeon-c5500-c3500-spec-update.pdf See BT119 in http://www.intel.com/content/dam/www/public/us/en/documents/specification-updates/xeon-e5-family-spec-update.pdf Signed-off-by: Jon Mason <jon.mason@intel.com>
2013-09-03NVMe: Handle ioremap failureKeith Busch
Decrement the number of queues required for doorbell remapping until the memory is successfully mapped for that size. Additional checks are done so that we don't call free_irq if it has already been freed. Signed-off-by: Keith Busch <keith.busch@intel.com> Signed-off-by: Matthew Wilcox <matthew.r.wilcox@intel.com>
2013-09-03NVMe: Add pci suspend/resume driver callbacksKeith Busch
Used for going in and out of low power states. Resuming reuses the IO queues from the previous initialization, freeing any allocated queues that are no longer usable. Signed-off-by: Keith Busch <keith.busch@intel.com> Signed-off-by: Matthew Wilcox <matthew.r.wilcox@intel.com>
2013-09-03clk: Move symbol export to proper locationThierry Reding
The __clk_get_flags() symbol is exported immediately following the clk_unprepare_unused_subtree() function. This is unusual, since a symbol export typically follows body of the function that it exports. Signed-off-by: Thierry Reding <treding@nvidia.com> Signed-off-by: Mike Turquette <mturquette@linaro.org>
2013-09-03NVMe: Use normal shutdownKeith Busch
The NVMe spec recommends using the shutdown normal sequence when safely taking the controller offline instead of hitting CC.EN on the next start-up to reset the controller. The spec recommends a minimum of 1 second for the shutdown complete. This patch waits 2 seconds to be on the safe side. Signed-off-by: Keith Busch <keith.busch@intel.com> Signed-off-by: Matthew Wilcox <matthew.r.wilcox@intel.com>
2013-09-03NVMe: Separate controller init from disk discoveryKeith Busch
This combines the controller initialization into one function, removing IO queue setup from namespace discovery, and creates symetric functions for device removal. The controller start and shutdown functions can now be called from resume/suspend context as well as probe/remove. Signed-off-by: Keith Busch <keith.busch@intel.com> Signed-off-by: Matthew Wilcox <matthew.r.wilcox@intel.com>
2013-09-03NVMe: Separate queue alloc/free from create/deleteKeith Busch
This separates nvme queue allocation from creation, and queue deletion from freeing. This is so that we may in the future temporarily disable queues and reuse the same memory when bringing them back online, like coming back from suspend state. Signed-off-by: Keith Busch <keith.busch@intel.com> Signed-off-by: Matthew Wilcox <matthew.r.wilcox@intel.com>
2013-09-03NVMe: Group pci related actions in functionsKeith Busch
This will make it easier to reuse these outside probe/remove. Signed-off-by: Keith Busch <keith.busch@intel.com> Signed-off-by: Matthew Wilcox <matthew.r.wilcox@intel.com>
2013-09-03NVMe: Disk stats for read/write commands onlyKeith Busch
Flush and discard requests would previously mess up the accounting. Signed-off-by: Keith Busch <keith.busch@intel.com> Signed-off-by: Matthew Wilcox <matthew.r.wilcox@intel.com>
2013-09-03NVMe: Bring up cdev on set feature failureKeith Busch
This patch creates the character device as long as a device's admin queues are usable so a user has an opprotunity to perform administration tasks. A device may be in a state that does not allow IO and setting the queue count feature in such a state returns an error. Previously the driver would bail and the controller would be unusable. Signed-off-by: Keith Busch <keith.busch@intel.com>
2013-09-03NVMe: Fix checkpatch issuesKeith Busch
Signed-off-by: Keith Busch <keith.busch@intel.com>
2013-09-03NVMe: Namespace IDs are unsignedMatthew Wilcox
The 'Number of Namespaces' read from the device was being treated as signed, which would cause us to not scan any namespaces for a device with more than 2 billion namespaces. That led to noticing that the namespace ID was also being treated as signed, which could lead to the result from NVME_IOCTL_ID being treated as an error code. Signed-off-by: Matthew Wilcox <matthew.r.wilcox@intel.com>
2013-09-03NVMe: Update nvme_id_power_state with latest specKeith Busch
Signed-off-by: Keith Busch <keith.busch@intel.com> Signed-off-by: Matthew Wilcox <matthew.r.wilcox@intel.com>
2013-09-03NVMe: Split header file into user-visible and kernel-visible piecesMatthew Wilcox
To build user programs that call the NVMe ioctls, we need to have a user header file. Catch up to the new way of doing that by splitting the header file into kernel and uapi portions. Signed-off-by: Matthew Wilcox <matthew.r.wilcox@intel.com>
2013-09-03xfs: XFS_MOUNT_QUOTA_ALL needed by userspaceDave Chinner
So move it to a header file shared with userspace. Signed-off-by: Dave Chinner <dchinner@redhat.com> Reviewed-by: Mark Tinguely <tinguely@sgi.com> Signed-off-by: Ben Myers <bpm@sgi.com>
2013-09-03xfs: dtype changed xfs_dir2_sfe_put_ino to xfs_dir3_sfe_put_inoDave Chinner
So fix up the export in xfs_dir2.h that is needed by userspace. <sigh> Now xfs_dir3_sfe_put_ino has been made static. Revert 98f7462 ("xfs: xfs_dir3_sfe_put_ino can be static") to being non static so that the code shared with userspace is identical again. Signed-off-by: Dave Chinner <dchinner@redhat.com> Reviewed-by: Ben Myers <bpm@sgi.com> Signed-off-by: Ben Myers <bpm@sgi.com>
2013-09-03NFS: Update session draining barriers for NFSv4.0 transport blockingChuck Lever
Signed-off-by: Chuck Lever <chuck.lever@oracle.com> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2013-09-03NFS: Add nfs4_sequence calls for OPEN_CONFIRMChuck Lever
Ensure OPEN_CONFIRM is not emitted while the transport is plugged. Signed-off-by: Chuck Lever <chuck.lever@oracle.com> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2013-09-03NFS: Add nfs4_sequence calls for RELEASE_LOCKOWNERChuck Lever
Ensure RELEASE_LOCKOWNER is not emitted while the transport is plugged. Signed-off-by: Chuck Lever <chuck.lever@oracle.com> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2013-09-03NFS: Enable nfs4_setup_sequence() for DELEGRETURNChuck Lever
When CONFIG_NFS_V4_1 is disabled, the calls to nfs4_setup_sequence() and nfs4_sequence_done() are compiled out for the DELEGRETURN operation. To allow NFSv4.0 transport blocking to work for DELEGRETURN, these call sites have to be present all the time. Signed-off-by: Chuck Lever <chuck.lever@oracle.com> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2013-09-03NFS: NFSv4.0 transport blockingChuck Lever
Plumb in a mechanism for plugging an NFSv4.0 mount, using the same infrastructure as NFSv4.1 sessions. Signed-off-by: Chuck Lever <chuck.lever@oracle.com> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2013-09-03NFS: Add a slot table to struct nfs_client for NFSv4.0 transport blockingChuck Lever
Anchor an nfs4_slot_table in the nfs_client for use with NFSv4.0 transport blocking. It is initialized only for NFSv4.0 nfs_client's. Introduce appropriate minor version ops to handle nfs_client initialization and shutdown requirements that differ for each minor version. Signed-off-by: Chuck Lever <chuck.lever@oracle.com> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2013-09-03NFS: Add global helper for releasing slot table resourcesChuck Lever
The nfs4_destroy_slot_tables() function is renamed to avoid confusion with the new helper. Signed-off-by: Chuck Lever <chuck.lever@oracle.com> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2013-09-03NFS: Add global helper to set up a stand-along nfs4_slot_tableChuck Lever
Signed-off-by: Chuck Lever <chuck.lever@oracle.com> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2013-09-03NFS: Enable slot table helpers for NFSv4.0Chuck Lever
I'd like to re-use NFSv4.1's slot table machinery for NFSv4.0 transport blocking. Re-organize some of nfs4session.c so the slot table code is built even when NFS_V4_1 is disabled. Signed-off-by: Chuck Lever <chuck.lever@oracle.com> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2013-09-03NFS: Remove unused call_sync minor version opChuck Lever
Clean up. Signed-off-by: Chuck Lever <chuck.lever@oracle.com> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2013-09-03NFS: Add RPC callouts to start NFSv4.0 synchronous requestsChuck Lever
Refactor nfs4_call_sync_sequence() so it is used for NFSv4.0 now. The RPC callouts will house transport blocking logic similar to NFSv4.1 sessions. Signed-off-by: Chuck Lever <chuck.lever@oracle.com> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2013-09-03NFS: Common versions of sequence helper functionsChuck Lever
NFSv4.0 will have need for this functionality when I add the ability to block NFSv4.0 traffic before migration recovery. I'm not really clear on why nfs4_set_sequence_privileged() gets a generic name, but nfs41_init_sequence() gets a minor version-specific name. Signed-off-by: Chuck Lever <chuck.lever@oracle.com> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2013-09-03NFS: Clean up nfs4_setup_sequence()Chuck Lever
Clean up: Both the NFSv4.0 and NFSv4.1 version of nfs4_setup_sequence() are used only in fs/nfs/nfs4proc.c. No need to keep global header declarations for either version. Signed-off-by: Chuck Lever <chuck.lever@oracle.com> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2013-09-03NFS: Rename nfs41_call_sync_data as a common data structureChuck Lever
Clean up: rename nfs41_call_sync_data for use as a data structure common to all NFSv4 minor versions. Signed-off-by: Chuck Lever <chuck.lever@oracle.com> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2013-09-03NFS: When displaying session slot numbers, use "%u" consistentlyChuck Lever
Clean up, since slot and sequence numbers are all unsigned anyway. Among other things, squelch compiler warnings: linux/fs/nfs/nfs4proc.c: In function ‘nfs4_setup_sequence’: linux/fs/nfs/nfs4proc.c:703:2: warning: signed and unsigned type in conditional expression [-Wsign-compare] and linux/fs/nfs/nfs4session.c: In function ‘nfs4_alloc_slot’: linux/fs/nfs/nfs4session.c:151:31: warning: signed and unsigned type in conditional expression [-Wsign-compare] Signed-off-by: Chuck Lever <chuck.lever@oracle.com> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>