linux-toradex.git/arch/ia64/kernel/iosapic.c, branch v4.2.7 Linux kernel for Apalis and Colibri modules ia64: fix up obsolete cpu function usage. 2015-03-05T04:55:04+00:00 Rusty Russell rusty@rustcorp.com.au 2015-03-05T00:19:16+00:00 5d2068da8d339e4dff8f9b9a1246e6a79e2949d8 Thanks to spatch, then a sweep for for_each_cpu_mask => for_each_cpu. Signed-off-by: Rusty Russell <rusty@rustcorp.com.au> Cc: Tony Luck <tony.luck@intel.com> Cc: Fenghua Yu <fenghua.yu@intel.com> Cc: linux-ia64@vger.kernel.org 
Thanks to spatch, then a sweep for for_each_cpu_mask => for_each_cpu.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Cc: Tony Luck <tony.luck@intel.com>
Cc: Fenghua Yu <fenghua.yu@intel.com>
Cc: linux-ia64@vger.kernel.org
ia64: Use irq_init_desc 2014-05-16T12:05:22+00:00 Thomas Gleixner tglx@linutronix.de 2014-05-07T15:44:22+00:00 4debd723f4934910ad1df279d80da16827f9b583 Switch over to the new interface. No functional change. Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Reviewed-by: Grant Likely <grant.likely@linaro.org> Tested-by: Tony Luck <tony.luck@intel.com> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Fenghua Yu <fenghua.yu@intel.com> Link: http://lkml.kernel.org/r/20140507154340.782586778@linutronix.de Signed-off-by: Thomas Gleixner <tglx@linutronix.de> 
Switch over to the new interface. No functional change.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Grant Likely <grant.likely@linaro.org>
Tested-by: Tony Luck <tony.luck@intel.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Fenghua Yu <fenghua.yu@intel.com>
Link: http://lkml.kernel.org/r/20140507154340.782586778@linutronix.de
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Fix kexec oops when iosapic was removed 2013-03-19T23:14:53+00:00 Hanjun Guo guohanjun@huawei.com 2013-03-08T04:33:35+00:00 ffa9095532d758cab6ecd6f161b08e338e7f64cb Iosapic hotplug was supported in IA64 code, but will lead to kexec oops when iosapic was removed. here is the code logic: iosapic_remove iosapic_free memset(&iosapic_lists[index], 0, sizeof(iosapic_lists[0])) iosapic_lists[index].addr was set to 0; and then kexec a new kernel kexec_disable_iosapic iosapic_write(rte->iosapic,..) __iosapic_write(iosapic->addr, reg, val); addr was set to 0 when iosapic_remove, and oops happened The call trace is: Starting new kernel kexec[11336]: Oops 8804682956800 [1] Modules linked in: raw(N) ipv6(N) acpi_cpufreq(N) binfmt_misc(N) fuse(N) nls_iso 8859_1(N) loop(N) ipmi_si(N) ipmi_devintf(N) ipmi_msghandler(N) mca_ereport(N) s csi_ereport(N) nic_ereport(N) pcie_ereport(N) err_transport(N) nvlist(PN) dm_mod (N) tpm_tis(N) tpm(N) ppdev(N) tpm_bios(N) serio_raw(N) i2c_i801(N) iTCO_wdt(N) i2c_core(N) iTCO_vendor_support(N) sg(N) ioatdma(N) igb(N) mptctl(N) dca(N) parp ort_pc(N) parport(N) container(N) button(N) usbhid(N) hid(N) uhci_hcd(N) ehci_hc d(N) usbcore(N) sd_mod(N) crc_t10dif(N) ext3(N) mbcache(N) jbd(N) fan(N) process or(N) ide_pci_generic(N) ide_core(N) ata_piix(N) libata(N) mptsas(N) mptscsih(N) mptbase(N) scsi_transport_sas(N) scsi_mod(N) thermal(N) thermal_sys(N) hwmon(N) Supported: Yes, External Pid: 11336, CPU 0, comm: kexec psr : 0000101009522030 ifs : 8000000000000791 ip : [<a00000010004c160>] Tain ted: P N (2.6.32.12_RAS_V1R3C00B011) ip is at kexec_disable_iosapic+0x120/0x1e0 unat: 0000000000000000 pfs : 0000000000000791 rsc : 0000000000000003 rnat: 0000000000000000 bsps: 0000000000000000 pr : 65519aa6a555a659 ldrs: 0000000000000000 ccv : 00000000ea3cf51e fpsr: 0009804c8a70033f csd : 0000000000000000 ssd : 0000000000000000 b0 : a00000010004c150 b6 : a000000100012620 b7 : a00000010000cda0 f6 : 000000000000000000000 f7 : 1003e0000000002000000 f8 : 1003e0000000050000003 f9 : 1003e0000028fb97183cd f10 : 1003ee9f380df3c548b67 f11 : 1003e00000000000000cc r1 : a0000001016cf660 r2 : 0000000000000000 r3 : 0000000000000000 r8 : 0000001009526030 r9 : a000000100012620 r10 : e00000010053f600 r11 : c0000000fec34040 r12 : e00000078f76fd30 r13 : e00000078f760000 r14 : 0000000000000000 r15 : 0000000000000000 r16 : 0000000000000000 r17 : 0000000000000000 r18 : 0000000000007fff r19 : 0000000000000000 r20 : 0000000000000000 r21 : e00000010053f590 r22 : a000000100cf0000 r23 : 0000000000000036 r24 : e0000007002f8a84 r25 : 0000000000000022 r26 : e0000007002f8a88 r27 : 0000000000000020 r28 : 0000000000000002 r29 : a0000001012c8c60 r30 : 0000000000000000 r31 : 0000000000322e49 Call Trace: [<a000000100018ca0>] show_stack+0x80/0xa0 sp=e00000078f76f8f0 bsp=e00000078f761380 [<a000000100019300>] show_regs+0x640/0x920 sp=e00000078f76fac0 bsp=e00000078f761328 [<a00000010002a130>] die+0x190/0x2e0 sp=e00000078f76fad0 bsp=e00000078f7612e8 [<a000000100922fa0>] ia64_do_page_fault+0x840/0xb20 sp=e00000078f76fad0 bsp=e00000078f761288 [<a00000010000d5c0>] ia64_native_leave_kernel+0x0/0x270 sp=e00000078f76fb60 bsp=e00000078f761288 [<a00000010004c160>] kexec_disable_iosapic+0x120/0x1e0 sp=e00000078f76fd30 bsp=e00000078f761200 [<a000000100016970>] machine_shutdown+0x110/0x140 sp=e00000078f76fd30 bsp=e00000078f7611c8 [<a000000100133530>] kernel_kexec+0xd0/0x120 sp=e00000078f76fd30 bsp=e00000078f7611a0 [<a0000001000eca40>] sys_reboot+0x480/0x4e0 sp=e00000078f76fd30 bsp=e00000078f761128 [<a00000010000d420>] ia64_ret_from_syscall+0x0/0x20 sp=e00000078f76fe30 bsp=e00000078f761120 Kernel panic - not syncing: Fatal exception With Tony and Toshi's advice, the patch removes the "rte" from rte_list when the iosapic was removed. Signed-off-by: Hanjun Guo <guohanjun@huawei.com> Signed-off-by: Jianguo Wu <wujianguo@huawei.com> Acked-by: Toshi Kani <toshi.kani@hp.com> Signed-off-by: Tony Luck <tony.luck@intel.com> 
Iosapic hotplug was supported in IA64 code, but will lead to kexec oops
when iosapic was removed. here is the code logic:

iosapic_remove
  iosapic_free
    memset(&iosapic_lists[index], 0, sizeof(iosapic_lists[0]))
      iosapic_lists[index].addr was set to 0;

and then kexec a new kernel
kexec_disable_iosapic
  iosapic_write(rte->iosapic,..)
    __iosapic_write(iosapic->addr, reg, val);
      addr was set to 0 when iosapic_remove, and oops happened

The call trace is:
Starting new kernel
kexec[11336]: Oops 8804682956800 [1]
Modules linked in: raw(N) ipv6(N) acpi_cpufreq(N) binfmt_misc(N) fuse(N) nls_iso
8859_1(N) loop(N) ipmi_si(N) ipmi_devintf(N) ipmi_msghandler(N) mca_ereport(N) s
csi_ereport(N) nic_ereport(N) pcie_ereport(N) err_transport(N) nvlist(PN) dm_mod
(N) tpm_tis(N) tpm(N) ppdev(N) tpm_bios(N) serio_raw(N) i2c_i801(N) iTCO_wdt(N)
i2c_core(N) iTCO_vendor_support(N) sg(N) ioatdma(N) igb(N) mptctl(N) dca(N) parp
ort_pc(N) parport(N) container(N) button(N) usbhid(N) hid(N) uhci_hcd(N) ehci_hc
d(N) usbcore(N) sd_mod(N) crc_t10dif(N) ext3(N) mbcache(N) jbd(N) fan(N) process
or(N) ide_pci_generic(N) ide_core(N) ata_piix(N) libata(N) mptsas(N) mptscsih(N)
 mptbase(N) scsi_transport_sas(N) scsi_mod(N) thermal(N) thermal_sys(N) hwmon(N)

Supported: Yes, External

Pid: 11336, CPU 0, comm:                kexec
psr : 0000101009522030 ifs : 8000000000000791 ip  : [<a00000010004c160>]    Tain
ted: P          N  (2.6.32.12_RAS_V1R3C00B011)
ip is at kexec_disable_iosapic+0x120/0x1e0
unat: 0000000000000000 pfs : 0000000000000791 rsc : 0000000000000003
rnat: 0000000000000000 bsps: 0000000000000000 pr  : 65519aa6a555a659
ldrs: 0000000000000000 ccv : 00000000ea3cf51e fpsr: 0009804c8a70033f
csd : 0000000000000000 ssd : 0000000000000000
b0  : a00000010004c150 b6  : a000000100012620 b7  : a00000010000cda0
f6  : 000000000000000000000 f7  : 1003e0000000002000000
f8  : 1003e0000000050000003 f9  : 1003e0000028fb97183cd
f10 : 1003ee9f380df3c548b67 f11 : 1003e00000000000000cc
r1  : a0000001016cf660 r2  : 0000000000000000 r3  : 0000000000000000
r8  : 0000001009526030 r9  : a000000100012620 r10 : e00000010053f600
r11 : c0000000fec34040 r12 : e00000078f76fd30 r13 : e00000078f760000
r14 : 0000000000000000 r15 : 0000000000000000 r16 : 0000000000000000
r17 : 0000000000000000 r18 : 0000000000007fff r19 : 0000000000000000
r20 : 0000000000000000 r21 : e00000010053f590 r22 : a000000100cf0000
r23 : 0000000000000036 r24 : e0000007002f8a84 r25 : 0000000000000022
r26 : e0000007002f8a88 r27 : 0000000000000020 r28 : 0000000000000002
r29 : a0000001012c8c60 r30 : 0000000000000000 r31 : 0000000000322e49

Call Trace:
 [<a000000100018ca0>] show_stack+0x80/0xa0
                                sp=e00000078f76f8f0 bsp=e00000078f761380
 [<a000000100019300>] show_regs+0x640/0x920
                                sp=e00000078f76fac0 bsp=e00000078f761328
 [<a00000010002a130>] die+0x190/0x2e0
                                sp=e00000078f76fad0 bsp=e00000078f7612e8
 [<a000000100922fa0>] ia64_do_page_fault+0x840/0xb20
                                sp=e00000078f76fad0 bsp=e00000078f761288
 [<a00000010000d5c0>] ia64_native_leave_kernel+0x0/0x270
                                sp=e00000078f76fb60 bsp=e00000078f761288
 [<a00000010004c160>] kexec_disable_iosapic+0x120/0x1e0
                                sp=e00000078f76fd30 bsp=e00000078f761200
 [<a000000100016970>] machine_shutdown+0x110/0x140
                                sp=e00000078f76fd30 bsp=e00000078f7611c8
 [<a000000100133530>] kernel_kexec+0xd0/0x120
                                sp=e00000078f76fd30 bsp=e00000078f7611a0
 [<a0000001000eca40>] sys_reboot+0x480/0x4e0
                                sp=e00000078f76fd30 bsp=e00000078f761128
 [<a00000010000d420>] ia64_ret_from_syscall+0x0/0x20
                                sp=e00000078f76fe30 bsp=e00000078f761120
Kernel panic - not syncing: Fatal exception

With Tony and Toshi's advice, the patch removes the "rte" from rte_list
when the iosapic was removed.

Signed-off-by: Hanjun Guo <guohanjun@huawei.com>
Signed-off-by: Jianguo Wu <wujianguo@huawei.com>
Acked-by: Toshi Kani <toshi.kani@hp.com>
Signed-off-by: Tony Luck <tony.luck@intel.com>
iosapic: fix a minor typo in comments 2013-03-19T23:14:53+00:00 Hanjun Guo guohanjun@huawei.com 2013-03-08T04:32:52+00:00 c74edea33c57ae98121a1fdfa5512fbcd9c74875 describeinterrupts -> describe interrupts Signed-off-by: Hanjun Guo <guohanjun@huawei.com> Signed-off-by: Tony Luck <tony.luck@intel.com> 
describeinterrupts -> describe interrupts

Signed-off-by: Hanjun Guo <guohanjun@huawei.com>
Signed-off-by: Tony Luck <tony.luck@intel.com>
IA64: drivers: remove __dev* attributes. 2013-01-03T23:57:13+00:00 Greg Kroah-Hartman gregkh@linuxfoundation.org 2012-12-21T22:05:13+00:00 5b5e76e9cb294fc01cc81d21cd7b5feead067a40 CONFIG_HOTPLUG is going away as an option. As a result, the __dev* markings need to be removed. This change removes the use of __devinit, __devexit_p, __devinitdata, and __devexit from these drivers. Based on patches originally written by Bill Pemberton, but redone by me in order to handle some of the coding style issues better, by hand. Cc: Bill Pemberton <wfp5p@virginia.edu> Cc: Tony Luck <tony.luck@intel.com> Cc: Fenghua Yu <fenghua.yu@intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> 
CONFIG_HOTPLUG is going away as an option.  As a result, the __dev*
markings need to be removed.

This change removes the use of __devinit, __devexit_p, __devinitdata,
and __devexit from these drivers.

Based on patches originally written by Bill Pemberton, but redone by me
in order to handle some of the coding style issues better, by hand.

Cc: Bill Pemberton <wfp5p@virginia.edu>
Cc: Tony Luck <tony.luck@intel.com>
Cc: Fenghua Yu <fenghua.yu@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Disintegrate asm/system.h for IA64 2012-03-28T17:30:02+00:00 David Howells dhowells@redhat.com 2012-03-28T17:30:02+00:00 c140d87995b68b428f70635c2e4071e4e8b3256e Disintegrate asm/system.h for IA64. Signed-off-by: David Howells <dhowells@redhat.com> Acked-by: Tony Luck <tony.luck@intel.com> cc: linux-ia64@vger.kernel.org 
Disintegrate asm/system.h for IA64.

Signed-off-by: David Howells <dhowells@redhat.com>
Acked-by: Tony Luck <tony.luck@intel.com>
cc: linux-ia64@vger.kernel.org
ia64: iosapic: Use new irq_move_* functions 2011-03-29T12:48:03+00:00 Thomas Gleixner tglx@linutronix.de 2011-03-25T19:30:53+00:00 91ce72e08047190291777ec56598118225910203 The current functions are going away. Also use the accessor for pending setaffinity in irq_data instead of the open coded irq_desc access. Signed-off-by: Thomas Gleixner <tglx@linutronix.de> 
The current functions are going away.

Also use the accessor for pending setaffinity in irq_data instead of
the open coded irq_desc access.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
ia64: iosapic: Remove redundant mask from ack() 2011-03-29T12:48:03+00:00 Thomas Gleixner tglx@linutronix.de 2011-03-25T19:25:06+00:00 459960d831d14924eb4bcccadeb03ec81a1f524c The core code calls mask_ack() which calls irq_ack() and irq_mask() for the case where an interrupt is disabled and marked pending. That seems to be a leftover from the old __do_IRQ() mode. Signed-off-by: Thomas Gleixner <tglx@linutronix.de> 
The core code calls mask_ack() which calls irq_ack() and irq_mask()
for the case where an interrupt is disabled and marked pending. That
seems to be a leftover from the old __do_IRQ() mode.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
ia64: iosapic: Cleanup irq_desc access 2011-03-29T12:48:03+00:00 Thomas Gleixner tglx@linutronix.de 2011-03-25T19:16:05+00:00 dea1078e1a67f3d877ef553e3189df20fcca54e0 Use irq_to_desc() and use accessors for setting chip and handler. Signed-off-by: Thomas Gleixner <tglx@linutronix.de> 
Use irq_to_desc() and use accessors for setting chip and handler.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
ia64: Convert iosapic to new irq_chip functions 2011-03-29T12:48:02+00:00 Thomas Gleixner tglx@linutronix.de 2011-02-04T19:31:21+00:00 8fac171f72efb2e62f34ffeca22820823e60cdb0 Signed-off-by: Thomas Gleixner <tglx@linutronix.de> 
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>