| Age | Commit message (Collapse) | Author | Files | Lines |
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Make ppc_save_regs() a bit more useful:
- Set NIP to our caller rather rather than the caller's
caller (which is what we save to LR in the stack frame).
- Set SOFTE to the current irq soft-mask state rather than
uninitialised.
- Zero CFAR rather than leave it uninitialised.
In qemu, injecting a nmi to an idle CPU gives a nicer stack
trace (note NIP, IRQMASK, CFAR).
Oops: System Reset, sig: 6 [#1]
LE PAGE_SIZE=64K MMU=Hash PREEMPT SMP NR_CPUS=2048 NUMA PowerNV
Modules linked in:
CPU: 0 PID: 0 Comm: swapper/0 Not tainted 5.6.0-rc2-00429-ga76e38fd80bf #1277
NIP: c0000000000b6e5c LR: c0000000000b6e5c CTR: c000000000b06270
REGS: c00000000173fb08 TRAP: 0100 Not tainted
MSR: 9000000000001033 <SF,HV,ME,IR,DR,RI,LE> CR: 28000224 XER: 00000000
CFAR: c0000000016a2128 IRQMASK: c00000000173fc80
GPR00: c0000000000b6e5c c00000000173fc80 c000000001743400 c00000000173fb08
GPR04: 0000000000000000 0000000000000000 0000000000000008 0000000000000001
GPR08: 00000001fea80000 0000000000000000 0000000000000000 ffffffffffffffff
GPR12: c000000000b06270 c000000001930000 00000000300026c0 0000000000000000
GPR16: 0000000000000000 0000000000000000 0000000000000003 c0000000016a2128
GPR20: c0000001ffc97148 0000000000000001 c000000000f289a8 0000000000080000
GPR24: c0000000016e1480 000000011dc870ba 0000000000000000 0000000000000003
GPR28: c0000000016a2128 c0000001ffc97148 c0000000016a2260 0000000000000003
NIP [c0000000000b6e5c] power9_idle_type+0x5c/0x70
LR [c0000000000b6e5c] power9_idle_type+0x5c/0x70
Call Trace:
[c00000000173fc80] [c0000000000b6e5c] power9_idle_type+0x5c/0x70 (unreliable)
[c00000000173fcb0] [c000000000b062b0] stop_loop+0x40/0x60
[c00000000173fce0] [c000000000b022d8] cpuidle_enter_state+0xa8/0x660
[c00000000173fd60] [c000000000b0292c] cpuidle_enter+0x4c/0x70
[c00000000173fda0] [c00000000017624c] call_cpuidle+0x4c/0x90
[c00000000173fdc0] [c000000000176768] do_idle+0x338/0x460
[c00000000173fe60] [c000000000176b3c] cpu_startup_entry+0x3c/0x40
[c00000000173fe90] [c0000000000126b4] rest_init+0x124/0x140
[c00000000173fed0] [c0000000010948d4] start_kernel+0x938/0x988
[c00000000173ff90] [c00000000000cdcc] start_here_common+0x1c/0x20
Oops: System Reset, sig: 6 [#1]
LE PAGE_SIZE=64K MMU=Hash PREEMPT SMP NR_CPUS=2048 NUMA PowerNV
Modules linked in:
CPU: 0 PID: 0 Comm: swapper/0 Not tainted 5.6.0-rc2-00430-gddce91b8712f #1278
NIP: c00000000001d150 LR: c0000000000b6e5c CTR: c000000000b06270
REGS: c00000000173fb08 TRAP: 0100 Not tainted
MSR: 9000000000001033 <SF,HV,ME,IR,DR,RI,LE> CR: 28000224 XER: 00000000
CFAR: 0000000000000000 IRQMASK: 1
GPR00: c0000000000b6e5c c00000000173fc80 c000000001743400 c00000000173fb08
GPR04: 0000000000000000 0000000000000000 0000000000000008 0000000000000001
GPR08: 00000001fea80000 0000000000000000 0000000000000000 ffffffffffffffff
GPR12: c000000000b06270 c000000001930000 00000000300026c0 0000000000000000
GPR16: 0000000000000000 0000000000000000 0000000000000003 c0000000016a2128
GPR20: c0000001ffc97148 0000000000000001 c000000000f289a8 0000000000080000
GPR24: c0000000016e1480 00000000b68db8ce 0000000000000000 0000000000000003
GPR28: c0000000016a2128 c0000001ffc97148 c0000000016a2260 0000000000000003
NIP [c00000000001d150] replay_system_reset+0x30/0xa0
LR [c0000000000b6e5c] power9_idle_type+0x5c/0x70
Call Trace:
[c00000000173fc80] [c0000000000b6e5c] power9_idle_type+0x5c/0x70 (unreliable)
[c00000000173fcb0] [c000000000b062b0] stop_loop+0x40/0x60
[c00000000173fce0] [c000000000b022d8] cpuidle_enter_state+0xa8/0x660
[c00000000173fd60] [c000000000b0292c] cpuidle_enter+0x4c/0x70
[c00000000173fda0] [c00000000017624c] call_cpuidle+0x4c/0x90
[c00000000173fdc0] [c000000000176768] do_idle+0x338/0x460
[c00000000173fe60] [c000000000176b38] cpu_startup_entry+0x38/0x40
[c00000000173fe90] [c0000000000126b4] rest_init+0x124/0x140
[c00000000173fed0] [c0000000010948d4] start_kernel+0x938/0x988
[c00000000173ff90] [c00000000000cdcc] start_here_common+0x1c/0x20
Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/20200403131006.123243-1-npiggin@gmail.com
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This reverts commit ebb37cf3ffd39fdb6ec5b07111f8bb2f11d92c5f.
That commit does not play well with soft-masked irq state
manipulations in idle, interrupt replay, and possibly others due to
tracing code sometimes using irq_work_queue (e.g., in
trace_hardirqs_on()). That can cause PACA_IRQ_DEC to become set when
it is not expected, and be ignored or cleared or cause warnings.
The net result seems to be missing an irq_work until the next timer
interrupt in the worst case which is usually not going to be noticed,
however it could be a long time if the tick is disabled, which is
against the spirit of irq_work and might cause real problems.
The idea is still solid, but it would need more work. It's not really
clear if it would be worth added complexity, so revert this for
now (not a straight revert, but replace with a comment explaining why
we might see interrupts happening, and gives git blame something to
find).
Fixes: ebb37cf3ffd3 ("powerpc/64: irq_work avoid interrupt when called with hardware irqs enabled")
Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/20200402120401.1115883-1-npiggin@gmail.com
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The PowerPC time code is not a clock provider, and just needs to call
of_clk_init().
Hence it can include <linux/of_clk.h> instead of <linux/clk-provider.h>.
Remove the #ifdef protecting the of_clk_init() call, as a stub is
available for the !CONFIG_COMMON_CLK case.
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Reviewed-by: Stephen Boyd <sboyd@kernel.org>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/20200213083804.24315-1-geert+renesas@glider.be
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Unlike normal memory ("memory" compatible type in the FDT), the
persistent memory ("ibm,pmemory" in the FDT) can be mapped anywhere in
the guest physical space and it can be used for DMA.
In order to maintain 1:1 mapping via the huge DMA window, we need to
know the maximum physical address at the time of the window setup. So
far we've been looking at "memory" nodes but "ibm,pmemory" does not
have fixed addresses and the persistent memory may be mapped
afterwards.
Since the persistent memory is still backed with page structs, use
MAX_PHYSMEM_BITS as the upper limit.
This effectively disables huge DMA window in LPAR under pHyp if
persistent memory is present but this is the best we can do for the
moment.
Signed-off-by: Alexey Kardashevskiy <aik@ozlabs.ru>
Tested-by: Wen Xiong<wenxiong@linux.vnet.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/20200331012338.23773-1-aik@ozlabs.ru
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Building callchain.c with !COMPAT proved quite ugly with all the
defines. Splitting out the 32bit and 64bit parts looks better.
No code change intended.
Signed-off-by: Michal Suchanek <msuchanek@suse.de>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/a20027bf1074935a7934ee2a6757c99ea047e70d.1584699455.git.msuchanek@suse.de
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On bigendian ppc64 it is common to have 32bit legacy binaries but much
less so on littleendian.
Signed-off-by: Michal Suchanek <msuchanek@suse.de>
Reviewed-by: Christophe Leroy <christophe.leroy@c-s.fr>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/41393d6e895b0d3a47ee62f8f51e1cf888ad6226.1584699455.git.msuchanek@suse.de
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There are numerous references to 32bit functions in generic and 64bit
code so ifdef them out.
Signed-off-by: Michal Suchanek <msuchanek@suse.de>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/e5619617020ef3a1f54f0c076e7d74cb9ec9f3bf.1584699455.git.msuchanek@suse.de
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Merge the 32bit and 64bit version.
Halve the check constants on 32bit.
Use STACK_TOP since it is defined.
Passing is_64 is now redundant since is_32bit_task() is used to
determine which callchain variant should be used. Use STACK_TOP and
is_32bit_task() directly.
This removes a page from the valid 32bit area on 64bit:
#define TASK_SIZE_USER32 (0x0000000100000000UL - (1 * PAGE_SIZE))
#define STACK_TOP_USER32 TASK_SIZE_USER32
Change return value to bool. It is inverted by users anyway.
Change to invalid_user_sp to avoid inverting the return value twice.
Signed-off-by: Michal Suchanek <msuchanek@suse.de>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/be8e40fc0737fb28ad08b198552dee7cac1c5ce2.1584699455.git.msuchanek@suse.de
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There are two almost identical copies for 32bit and 64bit.
The function is used only in 32bit code which will be split out in next
patch so consolidate to one function.
Signed-off-by: Michal Suchanek <msuchanek@suse.de>
Reviewed-by: Christophe Leroy <christophe.leroy@c-s.fr>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/0c21c919ed1296420199c78f7c3cfd29d3c7e909.1584699455.git.msuchanek@suse.de
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These functions are required for 64bit as well.
Signed-off-by: Michal Suchanek <msuchanek@suse.de>
Reviewed-by: Christophe Leroy <christophe.leroy@c-s.fr>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/9fd6d9b7c5e91fab21159fe23534a2f16b4962d3.1584699455.git.msuchanek@suse.de
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This partially reverts commit caf6f9c8a326 ("asm-generic: Remove
unneeded __ARCH_WANT_SYS_LLSEEK macro")
When CONFIG_COMPAT is disabled on ppc64 the kernel does not build.
There is resistance to both removing the llseek syscall from the 64bit
syscall tables and building the llseek interface unconditionally.
Signed-off-by: Michal Suchanek <msuchanek@suse.de>
Reviewed-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/lkml/20190828151552.GA16855@infradead.org/
Link: https://lore.kernel.org/lkml/20190829214319.498c7de2@naga/
Link: https://lore.kernel.org/r/dd4575c51e31766e87f7e7fa121d099ab78d3290.1584699455.git.msuchanek@suse.de
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Set CONFIG_UEVENT_HELPER=y in ps3_defconfig.
commit 1be01d4a57142ded23bdb9e0c8d9369e693b26cc (driver: base: Disable
CONFIG_UEVENT_HELPER by default) disabled the CONFIG_UEVENT_HELPER option
that is needed for hotplug and module loading by most older 32bit powerpc
distributions that users typically install on the PS3.
Signed-off-by: Geoff Levand <geoff@infradead.org>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/410cda9aa1a6e04434dfe1f9aa2103d0694f706c.1585340156.git.geoff@infradead.org
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Static checkers don't like the inconsistent NULL checking on "ops".
This function is only called once and "ops" isn't NULL so the check
can be removed.
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Geoff Levand <geoff@infradead.org>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/ddc3513dc54d15456692c80df49287fe3babe40a.1585340156.git.geoff@infradead.org
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Remove a duplicate memory allocation failure error message.
Signed-off-by: Markus Elfring <elfring@users.sourceforge.net>
Signed-off-by: Geoff Levand <geoff@infradead.org>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/1bc5a16a22c487c478a204ebb7b80a22d2ad9cd0.1585340156.git.geoff@infradead.org
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commit <249fad734a25> ""powerpc/perf: Disable trace_imc pmu"
disables IMC(In-Memory Collection) trace-mode in kernel, since frequent
mode switching between accumulation mode and trace mode via the spr LDBAR
in the hardware can trigger a checkstop(system crash).
Patch to re-enable imc-trace mode in kernel.
The previous patch(1/2) in this series will address the mode switching issue
by implementing a global lock, and will restrict the usage of
accumulation and trace-mode at a time.
Signed-off-by: Anju T Sudhakar <anju@linux.vnet.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/20200313055238.8656-2-anju@linux.vnet.ibm.com
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IMC(In-memory Collection Counters) does performance monitoring in
two different modes, i.e accumulation mode(core-imc and thread-imc events),
and trace mode(trace-imc events). A cpu thread can either be in
accumulation-mode or trace-mode at a time and this is done via the LDBAR
register in POWER architecture. The current design does not address the
races between thread-imc and trace-imc events.
Patch implements a global id and lock to avoid the races between
core, trace and thread imc events. With this global id-lock
implementation, the system can either run core, thread or trace imc
events at a time. i.e. to run any core-imc events, thread/trace imc events
should not be enabled/monitored.
Signed-off-by: Anju T Sudhakar <anju@linux.vnet.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/20200313055238.8656-1-anju@linux.vnet.ibm.com
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MCE handling on pSeries platform fails as recent rework to use common
code for pSeries and PowerNV in machine check error handling tries to
access per-cpu variables in realmode. The per-cpu variables may be
outside the RMO region on pSeries platform and needs translation to be
enabled for access. Just moving these per-cpu variable into RMO region
did'nt help because we queue some work to workqueues in real mode, which
again tries to touch per-cpu variables. Also fwnmi_release_errinfo()
cannot be called when translation is not enabled.
This patch fixes this by enabling translation in the exception handler
when all required real mode handling is done. This change only affects
the pSeries platform.
Without this fix below kernel crash is seen on injecting
SLB multihit:
BUG: Unable to handle kernel data access on read at 0xc00000027b205950
Faulting instruction address: 0xc00000000003b7e0
Oops: Kernel access of bad area, sig: 11 [#1]
LE PAGE_SIZE=64K MMU=Hash SMP NR_CPUS=2048 NUMA pSeries
Modules linked in: mcetest_slb(OE+) af_packet(E) xt_tcpudp(E) ip6t_rpfilter(E) ip6t_REJECT(E) ipt_REJECT(E) xt_conntrack(E) ip_set(E) nfnetlink(E) ebtable_nat(E) ebtable_broute(E) ip6table_nat(E) ip6table_mangle(E) ip6table_raw(E) ip6table_security(E) iptable_nat(E) nf_nat(E) nf_conntrack(E) nf_defrag_ipv6(E) nf_defrag_ipv4(E) iptable_mangle(E) iptable_raw(E) iptable_security(E) ebtable_filter(E) ebtables(E) ip6table_filter(E) ip6_tables(E) iptable_filter(E) ip_tables(E) x_tables(E) xfs(E) ibmveth(E) vmx_crypto(E) gf128mul(E) uio_pdrv_genirq(E) uio(E) crct10dif_vpmsum(E) rtc_generic(E) btrfs(E) libcrc32c(E) xor(E) zstd_decompress(E) zstd_compress(E) raid6_pq(E) sr_mod(E) sd_mod(E) cdrom(E) ibmvscsi(E) scsi_transport_srp(E) crc32c_vpmsum(E) dm_mod(E) sg(E) scsi_mod(E)
CPU: 34 PID: 8154 Comm: insmod Kdump: loaded Tainted: G OE 5.5.0-mahesh #1
NIP: c00000000003b7e0 LR: c0000000000f2218 CTR: 0000000000000000
REGS: c000000007dcb960 TRAP: 0300 Tainted: G OE (5.5.0-mahesh)
MSR: 8000000000001003 <SF,ME,RI,LE> CR: 28002428 XER: 20040000
CFAR: c0000000000f2214 DAR: c00000027b205950 DSISR: 40000000 IRQMASK: 0
GPR00: c0000000000f2218 c000000007dcbbf0 c000000001544800 c000000007dcbd70
GPR04: 0000000000000001 c000000007dcbc98 c008000000d00258 c0080000011c0000
GPR08: 0000000000000000 0000000300000003 c000000001035950 0000000003000048
GPR12: 000000027a1d0000 c000000007f9c000 0000000000000558 0000000000000000
GPR16: 0000000000000540 c008000001110000 c008000001110540 0000000000000000
GPR20: c00000000022af10 c00000025480fd70 c008000001280000 c00000004bfbb300
GPR24: c000000001442330 c00800000800000d c008000008000000 4009287a77000510
GPR28: 0000000000000000 0000000000000002 c000000001033d30 0000000000000001
NIP [c00000000003b7e0] save_mce_event+0x30/0x240
LR [c0000000000f2218] pseries_machine_check_realmode+0x2c8/0x4f0
Call Trace:
Instruction dump:
3c4c0151 38429050 7c0802a6 60000000 fbc1fff0 fbe1fff8 f821ffd1 3d42ffaf
3fc2ffaf e98d0030 394a1150 3bdef530 <7d6a62aa> 1d2b0048 2f8b0063 380b0001
---[ end trace 46fd63f36bbdd940 ]---
Fixes: 9ca766f9891d ("powerpc/64s/pseries: machine check convert to use common event code")
Reviewed-by: Mahesh Salgaonkar <mahesh@linux.vnet.ibm.com>
Reviewed-by: Nicholas Piggin <npiggin@gmail.com>
Signed-off-by: Ganesh Goudar <ganeshgr@linux.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/20200320110119.10207-1-ganeshgr@linux.ibm.com
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The ahci driver doesn't support error recovery, and if your root
filesystem is attached to it the eeh-basic.sh test will likely kill
your machine.
So skip any device we see using the ahci driver.
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/20200326061144.2006522-1-mpe@ellerman.id.au
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Commit 3282a3da25bd ("powerpc/64: Implement soft interrupt replay in C")
broke the doorbell wakeup optimisation introduced by commit a9af97aa0a12
("powerpc/64s: msgclr when handling doorbell exceptions from system
reset").
This patch restores the msgclr, in C code. It's now done in the system
reset wakeup path rather than doorbell interrupt replay where it used
to be, because it is always the right thing to do in the wakeup case,
but it may be rarely of use in other interrupt replay situations in
which case it's wasted work - we would have to run measurements to see
if that was a worthwhile optimisation, and I suspect it would not be.
The results are similar to those in the original commit, test on POWER8
of context_switch selftests benchmark with polling idle disabled (e.g.,
always nap, giving cross-CPU IPIs) gives the following results:
broken patched
Different threads, same core: 317k/s 375k/s +18.7%
Different cores: 280k/s 282k/s +1.0%
Fixes: 3282a3da25bd ("powerpc/64: Implement soft interrupt replay in C")
Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/20200402121212.1118218-1-npiggin@gmail.com
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Declaring setjmp()/longjmp() as taking longs makes the signature
non-standard, and makes clang complain. In the past, this has been
worked around by adding -ffreestanding to the compile flags.
The implementation looks like it only ever propagates the value
(in longjmp) or sets it to 1 (in setjmp), and we only call longjmp
with integer parameters.
This allows removing -ffreestanding from the compilation flags.
Fixes: c9029ef9c957 ("powerpc: Avoid clang warnings around setjmp and longjmp")
Cc: stable@vger.kernel.org # v4.14+
Signed-off-by: Clement Courbet <courbet@google.com>
Reviewed-by: Nathan Chancellor <natechancellor@gmail.com>
Tested-by: Nathan Chancellor <natechancellor@gmail.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/20200330080400.124803-1-courbet@google.com
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Before checking for cpu_type == NULL, this same copy happens, so doing
it here will just write the same value to the t->oprofile_type
again.
Remove the repeated copy, as it is unnecessary.
Signed-off-by: Leonardo Bras <leonardo@linux.ibm.com>
Reviewed-by: Michael Neuling <mikey@neuling.org>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/20200215053637.280880-1-leonardo@linux.ibm.com
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GCC v8 defaults to enabling -fasynchronous-unwind-tables due to
https://gcc.gnu.org/r259298, which results in .eh_frame section being
generated. This results in additional disk usage by the build, as well
as the kernel modules. Since the kernel has no use for this, this
section is discarded.
Add -fno-asynchronous-unwind-tables to KBUILD_CFLAGS to suppress
generation of .eh_frame section. Note that our VDSOs need .eh_frame, but
are not affected by this change since our VDSO code are all in assembly.
Reported-by: Rasmus Villemoes <linux@rasmusvillemoes.dk>
Signed-off-by: Naveen N. Rao <naveen.n.rao@linux.vnet.ibm.com>
Reviewed-by: Segher Boessenkool <segher@kernel.crashing.org>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/1ed7cd84a7d1a3180b30c0c60e70eed8bb8b40c3.1583415544.git.naveen.n.rao@linux.vnet.ibm.com
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The original commit/discussion adding -fno-dwarf2-cfi-asm refers to
R_PPC64_REL32 relocations not being handled by our module loader:
http://lkml.kernel.org/r/20090224065112.GA6690@bombadil.infradead.org
However, that is now handled thanks to commit 9f751b82b491d
("powerpc/module: Add support for R_PPC64_REL32 relocations").
So, drop this flag from our Makefile.
Signed-off-by: Naveen N. Rao <naveen.n.rao@linux.vnet.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/9b22a064de6eb1301d92177eb3a38559df7005d3.1583415544.git.naveen.n.rao@linux.vnet.ibm.com
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The ISA_DMA_THRESHOLD variable is set by several platforms but never
referenced.
Remove it.
Signed-off-by: Mike Rapoport <rppt@linux.ibm.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/20191125092033.20014-1-rppt@kernel.org
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Nicholas Piggin
Geert Uytterhoeven
Alexey Kardashevskiy
Michal Suchanek
Geoff Levand
Dan Carpenter
Markus Elfring
Anju T Sudhakar
Ganesh Goudar
Michael Ellerman
Clement Courbet
Leonardo Bras
Naveen N. Rao
Mike Rapoport