summaryrefslogtreecommitdiffstats
path: root/arch/powerpc
Commit message (Collapse)AuthorAgeFilesLines
* powerpc/mm/radix: Setup AMOR in HV mode to allow key 0Balbir Singh2016-11-251-0/+14
| | | | | | | | | | | Setup AMOR (Authority Mask Override Register) in HV mode so that the host and guest kernel can in turn setup IAMR. This allows us to enable key 0 in a following patch. Reported-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com> Signed-off-by: Balbir Singh <bsingharora@gmail.com> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
* powernv: Clear SPRN_PSSCR when a POWER9 CPU comes onlineGautham R. Shenoy2016-11-251-0/+2
| | | | | | | | | Ensure that PSSCR is set to a safe value corresponding to no state-loss each time a POWER9 CPU comes online. Signed-off-by: Gautham R. Shenoy <ego@linux.vnet.ibm.com> Acked-By: Michael Neuling <mikey@neuling.org> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
* powerpc/xmon: Add 'dt' command to dump trace buffersMichael Ellerman2016-11-251-0/+6
| | | | | | | | | | | | | | | | | There is a nice interface for asking ftrace to dump all its tracing buffers. The only down side for use in xmon is that it uses printk. Depending on circumstances printk may not work when in xmon, but it also may, so add a 'dt' command which dumps the ftrace buffers, and add a note to the help to mentiont that it uses printk. Calling this routine also disables tracing, which is problematic if you return from xmon and expect the system to keep operating normally. So after we do the dump turn tracing back on. Both functions already have nop versions defined for when ftrace is not enabled, so we don't need any extra #ifdefs. Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
* powerpc/of_platform: Use builtin_platform_driverGeliang Tang2016-11-251-6/+1
| | | | | | | | Use builtin_platform_driver() helper to simplify the code. Signed-off-by: Geliang Tang <geliangtang@gmail.com> Acked-by: Russell Currey <ruscur@russell.cc> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
* powerpc: Fix __cmpxchg() to take a volatile ptr againMichael Ellerman2016-11-251-3/+3
| | | | | | | | | | | | | | | | | | In commit d0563a1297e2 ("powerpc: Implement {cmp}xchg for u8 and u16") we removed the volatile from __cmpxchg(). This is leading to warnings such as: drivers/gpu/drm/drm_lock.c: In function ‘drm_lock_take’: arch/powerpc/include/asm/cmpxchg.h:484:37: warning: passing argument 1 of ‘__cmpxchg’ discards ‘volatile’ qualifier from pointer target (__typeof__(*(ptr))) __cmpxchg((ptr), (unsigned long)_o_, \ There doesn't seem to be consensus across architectures whether the argument is volatile or not, so at least for now put the volatile back. Fixes: d0563a1297e2 ("powerpc: Implement {cmp}xchg for u8 and u16") Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
* Merge branch 'topic/ppc-kvm' into nextMichael Ellerman2016-11-2413-53/+138
|\ | | | | | | Merge the topic branch we're sharing with the kvm-ppc tree.
| * powerpc/powernv: Define and set POWER9 HFSCR doorbell bitMichael Neuling2016-11-232-1/+3
| | | | | | | | | | | | | | | | | | | | Define and set the POWER9 HFSCR doorbell bit so that guests can use msgsndp. ISA 3.0 calls this MSGP, so name it accordingly in the code. Signed-off-by: Michael Neuling <mikey@neuling.org> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
| * powerpc/reg: Add definition for LPCR_PECE_HVEEMichael Ellerman2016-11-231-0/+1
| | | | | | | | | | | | | | | | | | | | ISA 3.0 defines a new PECE (Power-saving mode Exit Cause Enable) field in the LPCR (Logical Partitioning Control Register), called LPCR_PECE_HVEE (Hypervisor Virtualization Exit Enable). KVM code will need to know about this bit, so add a definition for it. Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
| * powerpc/64: Define new ISA v3.00 logical PVR value and PCR register valueSuraj Jitindar Singh2016-11-231-0/+7
| | | | | | | | | | | | | | | | | | | | | | | | | | | | ISA 3.00 adds the logical PVR value 0x0f000005, so add a definition for this. Define PCR_ARCH_207 to reflect ISA 2.07 compatibility mode in the processor compatibility register (PCR). [paulus@ozlabs.org - moved dummy PCR_ARCH_300 value into next patch] Signed-off-by: Suraj Jitindar Singh <sjitindarsingh@gmail.com> Signed-off-by: Paul Mackerras <paulus@ozlabs.org> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
| * powerpc/powernv: Define real-mode versions of OPAL XICS accessorsPaul Mackerras2016-11-233-0/+8
| | | | | | | | | | | | | | | | | | | | | | This defines real-mode versions of opal_int_get_xirr(), opal_int_eoi() and opal_int_set_mfrr(), for use by KVM real-mode code. It also exports opal_int_set_mfrr() so that the modular part of KVM can use it to send IPIs. Signed-off-by: Paul Mackerras <paulus@ozlabs.org> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
| * powerpc/64: Provide functions for accessing POWER9 partition tablePaul Mackerras2016-11-234-36/+49
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | POWER9 requires the host to set up a partition table, which is a table in memory indexed by logical partition ID (LPID) which contains the pointers to page tables and process tables for the host and each guest. This factors out the initialization of the partition table into a single function. This code was previously duplicated between hash_utils_64.c and pgtable-radix.c. This provides a function for setting a partition table entry, which is used in early MMU initialization, and will be used by KVM whenever a guest is created. This function includes a tlbie instruction which will flush all TLB entries for the LPID and all caches of the partition table entry for the LPID, across the system. This also moves a call to memblock_set_current_limit(), which was in radix_init_partition_table(), but has nothing to do with the partition table. By analogy with the similar code for hash, the call gets moved to near the end of radix__early_init_mmu(). It now gets called when running as a guest, whereas previously it would only be called if the kernel is running as the host. Signed-off-by: Paul Mackerras <paulus@ozlabs.org> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
| * powerpc/64: Add some more SPRs and SPR bits for POWER9Paul Mackerras2016-11-221-0/+5
| | | | | | | | | | | | | | These definitions will be needed by KVM. Signed-off-by: Paul Mackerras <paulus@ozlabs.org> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
| * powerpc/64: Simplify adaptation to new ISA v3.00 HPTE formatPaul Mackerras2016-11-164-16/+65
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This changes the way that we support the new ISA v3.00 HPTE format. Instead of adapting everything that uses HPTE values to handle either the old format or the new format, depending on which CPU we are on, we now convert explicitly between old and new formats if necessary in the low-level routines that actually access HPTEs in memory. This limits the amount of code that needs to know about the new format and makes the conversions explicit. This is OK because the old format contains all the information that is in the new format. This also fixes operation under a hypervisor, because the H_ENTER hypercall (and other hypercalls that deal with HPTEs) will continue to require the HPTE value to be supplied in the old format. At present the kernel will not boot in HPT mode on POWER9 under a hypervisor. This fixes and partially reverts commit 50de596de8be ("powerpc/mm/hash: Add support for Power9 Hash", 2016-04-29). Fixes: 50de596de8be ("powerpc/mm/hash: Add support for Power9 Hash") Signed-off-by: Paul Mackerras <paulus@ozlabs.org> Reviewed-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
* | powerpc/32: Change the stack protector canary value per taskChristophe Leroy2016-11-232-1/+8
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Partially copied from commit df0698be14c66 ("ARM: stack protector: change the canary value per task") A new random value for the canary is stored in the task struct whenever a new task is forked. This is meant to allow for different canary values per task. On powerpc, GCC expects the canary value to be found in a global variable called __stack_chk_guard. So this variable has to be updated with the value stored in the task struct whenever a task switch occurs. Because the variable GCC expects is global, this cannot work on SMP unfortunately. So, on SMP, the same initial canary value is kept throughout, making this feature a bit less effective although it is still useful. Signed-off-by: Christophe Leroy <christophe.leroy@c-s.fr> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
* | powerpc: Initial stack protector (-fstack-protector) supportChristophe Leroy2016-11-234-0/+51
| | | | | | | | | | | | | | | | | | | | | | | | Partialy copied from commit c743f38013aef ("ARM: initial stack protector (-fstack-protector) support") This is the very basic stuff without the changing canary upon task switch yet. Just the Kconfig option and a constant canary value initialized at boot time. Signed-off-by: Christophe Leroy <christophe.leroy@c-s.fr> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
* | powerpc: Implement {cmp}xchg for u8 and u16Pan Xinhui2016-11-231-3/+106
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Implement xchg{u8,u16}{local,relaxed}, and cmpxchg{u8,u16}{,local,acquire,relaxed}. It works on all ppc. remove volatile of first parameter in __cmpxchg_local and __cmpxchg Suggested-by: Peter Zijlstra (Intel) <peterz@infradead.org> Signed-off-by: Pan Xinhui <xinhui.pan@linux.vnet.ibm.com> Acked-by: Boqun Feng <boqun.feng@gmail.com> Acked-by: Peter Zijlstra (Intel) <peterz@infradead.org> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
* | powerpc/pseries/ibmebus: Remove legacy suspend/resume supportLars-Peter Clausen2016-11-231-298/+0
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | There are no ibmebus driver that make use of legacy suspend/resume. This patch removes the support for it from ibmebus framework, new ibmebus driver (as unlikely as they are) wanting to use suspend/resume should use dev_pm_ops. Since there aren't any special bus specific things to do during suspend/resume and since the PM core will automatically fallback directly to using the device's PM ops if no bus PM ops are specified there is no need to have any special ibmebus PM ops at all. Signed-off-by: Lars-Peter Clausen <lars@metafoo.de> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
* | powerpc/kprobes: Invoke handlers directlyNaveen N. Rao2016-11-233-22/+27
| | | | | | | | | | | | | | | | | | | | | | | | | | Invoke the kprobe handlers directly rather than through notify_die(), to reduce path taken for handling kprobes. Similar to commit 6f6343f53d13 ("kprobes/x86: Call exception handlers directly from do_int3/do_debug"). While at it, rename post_kprobe_handler() to kprobe_post_handler() for more uniform naming. Reported-by: Masami Hiramatsu <mhiramat@kernel.org> Signed-off-by: Naveen N. Rao <naveen.n.rao@linux.vnet.ibm.com> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
* | powerpc: Remove extraneous header from asm-prototypes.hNaveen N. Rao2016-11-231-2/+0
| | | | | | | | | | | | | | | | | | | | Commit 03465f899bda ("powerpc: Use kprobe blacklist for exception handlers") removed __kprobes annotation from some of the prototypes, but left the kprobes header include directive unchanged. Remove it as it is no longer needed. Signed-off-by: Naveen N. Rao <naveen.n.rao@linux.vnet.ibm.com> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
* | powerpc/mm/coproc: Handle bad address on coproc slb faultAneesh Kumar K.V2016-11-221-0/+3
| | | | | | | | | | | | | | | | | | | | VSID 0 is bad address. Don't create slb entries on coproc fault for bad address Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com> Reviewed-by: Balbir Singh <bsingharora@gmail.com> Reviewed-by: Ian Munsie <imunsie@au1.ibm.com> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
* | powerpc/eeh: Refactor EEH PE reset functionsRussell Currey2016-11-223-46/+38
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | eeh_pe_reset and eeh_reset_pe are two different functions in the same file which do mostly the same thing. Not only is this confusing, but potentially causes disrepancies in functionality, notably eeh_reset_pe as it does not check return values for failure. Refactor this into the following: - eeh_pe_reset(): stays as is, performs a single operation, exported - eeh_pe_reset_full(): new, full reset process that calls eeh_pe_reset() - eeh_reset_pe(): removed and replaced by eeh_pe_reset_full() - eeh_reset_pe_once(): removed Signed-off-by: Russell Currey <ruscur@russell.cc> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
* | powerpc/pci: Always print PHB and PE numbers as hexadecimalRussell Currey2016-11-229-40/+40
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | PHB, PE (and by association MVE) numbers are printed as a mix of decimal and hexadecimal throughout the kernel. This can be misleading, so make them all hexadecimal. Standardising on hex instead of dec because: - PHB numbers are presented in hex in sysfs/debugfs (and lspci, etc) - PE numbers are presented as hex in sysfs and parsed in hex in debugfs The only place I think this could cause confusing are the messages during boot, i.e. pci 000a:01 : [PE# 000] Secondary bus 1 associated with PE#0 which can be a quick way to check PE numbers. pe_level_printk() will only print two characters instead of three, so the above would be pci 000a:01 : [PE# 00] Secondary bus 1 associated with PE#0 which gives a hint it's in hex. Signed-off-by: Russell Currey <ruscur@russell.cc> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
* | powerpc/powernv: Don't warn on PE init if unfreeze is unsupportedRussell Currey2016-11-221-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Whenever a PE is initialised in powernv, opal_pci_eeh_freeze_clear() is called. This is to remove any existing freeze, and has no negative side effects if the PE is already in an unfrozen state. On PHB backends that don't support this operation and return OPAL_UNSUPPORTED, this creates a scary and misleading warning message. Skip the warning message on init if OPAL_UNSUPPORTED is returned. As far as I'm aware, this currently only affects NPUs. Fixes: 313483d ("powerpc/powernv: Unfreeze PE on allocation") Signed-off-by: Russell Currey <ruscur@russell.cc> Acked-by: Gavin Shan <gwshan@linux.vnet.ibm.com> Reviewed-by: Andrew Donnellan <andrew.donnellan@au1.ibm.com> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
* | powerpc/64: Used named initialisers for ibm_pa_featuresMichael Ellerman2016-11-181-10/+11
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The ibm_pa_features array consists of structures that describe which bit and byte in the ibm,pa-features property toggles one or more flags in either the CPU, MMU, or user visible feature flags. Each one consists of 7 values, which are all unsigned long, int or char, meaning the compiler gives us no warning if we assign the wrong values to the wrong elements. In fact we have had a bug here in the past, where we were setting incorrect bits, see commit 6997e57d693b ("powerpc: scan_features() updates incorrect bits for REAL_LE"). So switch to using named initialisers for the structure elements, to reduce the likelihood of future bugs, and hopefully improve readability also. Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> Reviewed-by: Balbir Singh <bsingharora@gmail.com>
* | powerpc/configs: Turn on PPC crypto implementations in the server defconfigsMichael Ellerman2016-11-183-0/+9
| | | | | | | | | | | | | | | | These are the PPC optimised versions of various crypto algorithms, so we should turn them on by default to get test coverage. Suggested-by: Nicholas Piggin <npiggin@gmail.com> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
* | powerpc/pseries: Disable IBMEBUS on little endian buildsMichael Ellerman2016-11-181-1/+1
| | | | | | | | | | | | | | | | | | | | | | The IBMEBUS code supports the GX bus found on Power7 and earlier CPUs. On Power8 it has been replaced, and so we have no need for it. We don't actually have a config symbol for Power8 vs Power7 etc., but we only support booting little endian on Power8 or later, so use that as a reasonable approximation. Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
* | powerpc/pseries: Move ibmebus.c into platforms pseriesMichael Ellerman2016-11-185-7/+7
| | | | | | | | | | | | ibmebus.c is pseries only code, so move it in there. Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
* | powerpc/pseries: Move vio.c into platforms pseriesMichael Ellerman2016-11-185-6/+6
| | | | | | | | | | | | vio.c is pseries only code, so move it in there. Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
* | powerpc: Fix second nested oops hangNicholas Piggin2016-11-181-2/+3
| | | | | | | | | | | | | | | | | | When ending an oops, don't clear die_owner unless the nest count went to zero. This prevents a second nested oops from hanging forever on the die_lock. Signed-off-by: Nicholas Piggin <npiggin@gmail.com> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
* | powerpc: Fix graceful debugger recoveryNicholas Piggin2016-11-181-4/+5
| | | | | | | | | | | | | | | | | | | | | | | | When exiting xmon with 'x' (exit and recover), oops_begin bails out immediately, but die then calls __die() and oops_end(), which cause a lot of bad things to happen. If the debugger was attached then went to graceful recovery, exit from die() immediately. Signed-off-by: Nicholas Piggin <npiggin@gmail.com> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
* | powerpc: Add option to use thin archivesNicholas Piggin2016-11-182-2/+10
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Add an option to use thin archives to build the kernel. Thin archives are explained in commit a5967db9af51 ("kbuild: allow architectures to use thin archives instead of ld -r"). This is a gradual way to introduce the option to testers. Some change to the way we invoke ar is required so it can be used by scripts/link-vmlinux.sh. Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au> Signed-off-by: Nicholas Piggin <npiggin@gmail.com> [mpe: Make it an explicit option not dependant on COMPILE_TEST] Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
* | powerpc/lib: Fix randconfig build failure in sstep.cMichael Ellerman2016-11-181-0/+1
| | | | | | | | | | | | | | | | | | Under some configs we need to explicitly include cpu_has_feature.h, otherwise we fail with: arch/powerpc/lib/sstep.c:1992:7: error: implicit declaration of function 'cpu_has_feature' Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
* | powerpc/pseries: Correct possible read beyond dlpar sysfs bufferNathan Fontenot2016-11-181-45/+97
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The pasrsing of data written to the dlpar file in sysfs does not correctly account for the possibility of reading past the end of the buffer. The code assumes that all pieces of the command witten to the sysfs file are present in the form "<resource> <action> <id_type> <id>". Correct this by updating the buffer parsing code to make a local copy and use the strsep() and sysfs_streq() routines to parse the buffer. This patch also separates the parsing code into subroutines for each piece of the command. Signed-off-by: Nathan Fontenot <nfont@linux.vnet.ibm.com> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
* | powerpc/mce: Remove unused but set variableTobias Klauser2016-11-181-3/+0
| | | | | | | | | | | | | | | | | | | | | | | | Remove the unused but set variable srr1 in save_mce_event() to fix the following GCC warning when building with 'W=1': arch/powerpc/kernel/mce.c:75:11: warning: variable 'srr1' set but not used It has never been used. Signed-off-by: Tobias Klauser <tklauser@distanz.ch> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
* | powerpc: Fix old style declaration GCC warningsTobias Klauser2016-11-181-2/+2
| | | | | | | | | | | | | | | | Fix two [-Wold-style-declaration] GCC warnings by moving the inline keyword before the return type. Signed-off-by: Tobias Klauser <tklauser@distanz.ch> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
* | powerpc/64: get rid of MIN_HUGEPTE_SHIFTChristophe Leroy2016-11-184-12/+0
| | | | | | | | | | | | | | | | MIN_HUGEPTE_SHIFT hasn't been used since commit d1837cba5d5d5 ("powerpc/mm: Cleanup initialization of hugepages on powerpc") Signed-off-by: Christophe Leroy <christophe.leroy@c-s.fr> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
* | powerpc/mm: Correct process and partition table max sizeSuraj Jitindar Singh2016-11-171-2/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Version 3.00 of the ISA states that the PATS (partition table size) field of the PTCR (partition table control register) and the PRTS (process table size) field of the partition table entry must both be less than or equal to 24. However the actual size of the partition and process tables is equal to 2 to the power of 12 plus the PATS and PRTS fields, respectively. This means that the max allowable size of each of these tables is 2^36 or 64GB for both. Thus when checking the size shift for each we should be checking for values of greater than 36 instead of the current check for shifts larger than 24 and 23. Fixes: 2bfd65e45e877fb5704730244da67c748d28a1b8 Signed-off-by: Suraj Jitindar Singh <sjitindarsingh@gmail.com> Reviewed-by: Balbir Singh <bsingharora@gmail.com> Reviewed-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
* | powerpc/mm: Dump hash tableRashmica Gupta2016-11-172-1/+553
| | | | | | | | | | | | | | | | | | | | | | | | | | Useful to be able to dump the kernel hash page table to check which pages are hashed along with their sizes and other details. Add a debugfs file to check the hash page table. If radix is enabled (and so there is no hash page table) then this file doesn't exist. To use this the PPC_PTDUMP config option must be selected. Signed-off-by: Rashmica Gupta <rashmicy@gmail.com> [mpe: Fix build with SPARSEMEM_VMEMMAP=n & PSERIES=n] Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
* | powerpc/mm: Dump linux pagetablesRashmica Gupta2016-11-173-0/+453
| | | | | | | | | | | | | | | | | | | | | | Useful to be able to dump the kernels page tables to check permissions and memory types - derived from arm64's implementation. Add a debugfs file to check the page tables. To use this the PPC_PTDUMP config option must be selected. Signed-off-by: Rashmica Gupta <rashmicy@gmail.com> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
* | powerpc/pseries: Move CMO code from plapr_wrappers.h to platforms/pseriesMichael Ellerman2016-11-175-53/+54
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Currently there's some CMO (Cooperative Memory Overcommit) code, in plpar_wrappers.h. Some of it is #ifdef CONFIG_PSERIES and some of it isn't. The end result being if a file includes plpar_wrappers.h it won't build with CONFIG_PSERIES=n. Fix it by moving the CMO code into platforms/pseries. The two hcall wrappers can just be moved into their only caller, cmm.c, and the accessors can go in pseries.h. Note we need the accessors because cmm.c can be built as a module, so there needs to be a split between the built-in code vs the module, and that's achieved by using those accessors. Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
* | powerpc/mm: Fix typo in radix encodings printBalbir Singh2016-11-171-1/+1
| | | | | | | | | | | | | | Rename "sift" to "shift". Signed-off-by: Balbir Singh <bsingharora@gmail.com> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
* | powerpc: convert storcenter_defconfig to use libata PATA driversBartlomiej Zolnierkiewicz2016-11-141-3/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | IDE subsystem has been deprecated since 2009 and the majority (if not all) of Linux distributions have switched to use libata for ATA support exclusively. However there are still some users (mostly old or/and embedded non-x86 systems) that have not converted from using IDE subsystem to libata PATA drivers. This doesn't seem to be good thing in the long-term for Linux as while there is less and less PATA systems left in use: * testing efforts are divided between two subsystems * having duplicate drivers for same hardware confuses users This patch converts storcenter_defconfig to use libata PATA drivers. Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
* | powerpc: convert pseries_defconfig to use libata PATA driversBartlomiej Zolnierkiewicz2016-11-141-5/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | IDE subsystem has been deprecated since 2009 and the majority (if not all) of Linux distributions have switched to use libata for ATA support exclusively. However there are still some users (mostly old or/and embedded non-x86 systems) that have not converted from using IDE subsystem to libata PATA drivers. This doesn't seem to be good thing in the long-term for Linux as while there is less and less PATA systems left in use: * testing efforts are divided between two subsystems * having duplicate drivers for same hardware confuses users This patch converts pseries_defconfig to use libata PATA drivers. Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
* | powerpc: convert ppc6xx_defconfig to use libata PATA driversBartlomiej Zolnierkiewicz2016-11-141-8/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | IDE subsystem has been deprecated since 2009 and the majority (if not all) of Linux distributions have switched to use libata for ATA support exclusively. However there are still some users (mostly old or/and embedded non-x86 systems) that have not converted from using IDE subsystem to libata PATA drivers. This doesn't seem to be good thing in the long-term for Linux as while there is less and less PATA systems left in use: * testing efforts are divided between two subsystems * having duplicate drivers for same hardware confuses users This patch converts ppc6xx_defconfig to use libata PATA drivers. Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
* | powerpc: convert ppc64e_defconfig to use libata PATA driversBartlomiej Zolnierkiewicz2016-11-141-4/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | IDE subsystem has been deprecated since 2009 and the majority (if not all) of Linux distributions have switched to use libata for ATA support exclusively. However there are still some users (mostly old or/and embedded non-x86 systems) that have not converted from using IDE subsystem to libata PATA drivers. This doesn't seem to be good thing in the long-term for Linux as while there is less and less PATA systems left in use: * testing efforts are divided between two subsystems * having duplicate drivers for same hardware confuses users This patch converts ppc64e_defconfig to use libata PATA drivers. Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
* | powerpc: convert ppc64_defconfig to use libata PATA driversBartlomiej Zolnierkiewicz2016-11-141-6/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | IDE subsystem has been deprecated since 2009 and the majority (if not all) of Linux distributions have switched to use libata for ATA support exclusively. However there are still some users (mostly old or/and embedded non-x86 systems) that have not converted from using IDE subsystem to libata PATA drivers. This doesn't seem to be good thing in the long-term for Linux as while there is less and less PATA systems left in use: * testing efforts are divided between two subsystems * having duplicate drivers for same hardware confuses users This patch converts ppc64_defconfig to use libata PATA drivers. Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
* | powerpc: convert pmac32_defconfig to use libata PATA driversBartlomiej Zolnierkiewicz2016-11-141-9/+6
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | IDE subsystem has been deprecated since 2009 and the majority (if not all) of Linux distributions have switched to use libata for ATA support exclusively. However there are still some users (mostly old or/and embedded non-x86 systems) that have not converted from using IDE subsystem to libata PATA drivers. This doesn't seem to be good thing in the long-term for Linux as while there is less and less PATA systems left in use: * testing efforts are divided between two subsystems * having duplicate drivers for same hardware confuses users This patch converts pmac32_defconfig to use libata PATA drivers. Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
* | powerpc: disable IDE subsystem in pasemi_defconfigBartlomiej Zolnierkiewicz2016-11-141-3/+0
| | | | | | | | | | | | | | | | | | This patch disables deprecated IDE subsystem in pasemi_defconfig (no IDE host drivers are selected in this config so there is no valid reason to enable IDE subsystem itself). Cc: Olof Johansson <olof@lixom.net> Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
* | powerpc: convert maple_defconfig to use libata PATA driversBartlomiej Zolnierkiewicz2016-11-141-5/+4
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | IDE subsystem has been deprecated since 2009 and the majority (if not all) of Linux distributions have switched to use libata for ATA support exclusively. However there are still some users (mostly old or/and embedded non-x86 systems) that have not converted from using IDE subsystem to libata PATA drivers. This doesn't seem to be good thing in the long-term for Linux as while there is less and less PATA systems left in use: * testing efforts are divided between two subsystems * having duplicate drivers for same hardware confuses users This patch converts maple_defconfig to use libata PATA drivers. Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
* | powerpc: convert g5_defconfig to use libata PATA driversBartlomiej Zolnierkiewicz2016-11-141-4/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | IDE subsystem has been deprecated since 2009 and the majority (if not all) of Linux distributions have switched to use libata for ATA support exclusively. However there are still some users (mostly old or/and embedded non-x86 systems) that have not converted from using IDE subsystem to libata PATA drivers. This doesn't seem to be good thing in the long-term for Linux as while there is less and less PATA systems left in use: * testing efforts are divided between two subsystems * having duplicate drivers for same hardware confuses users This patch converts g5_defconfig to use libata PATA drivers. Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
generated by cgit v1.2.3 (git 2.25.1) at 2024-09-10 18:39:49 +0000