android_kernel_xiaomi_sm8350/arch/powerpc/platforms/iseries
Paul Mackerras e62cee42e6 powerpc: Avoid bad relocations in iSeries code
Subrata Modak reported that building a CONFIG_RELOCATABLE kernel with
CONFIG_ISERIES enabled gives the following warnings:

WARNING: 4 bad relocations
c00000000007216e R_PPC64_ADDR16_HIGHEST  __ksymtab+0x00000000009dcec8
c000000000072172 R_PPC64_ADDR16_HIGHER  __ksymtab+0x00000000009dcec8
c00000000007217a R_PPC64_ADDR16_HI  __ksymtab+0x00000000009dcec8
c00000000007217e R_PPC64_ADDR16_LO  __ksymtab+0x00000000009dcec8

The reason is that decrementer_iSeries_masked is using
LOAD_REG_IMMEDIATE to get the address of a kernel symbol, which
creates relocations that aren't handled by the kernel relocator code.

Instead of reading the tb_ticks_per_jiffy variable, we can just set
the decrementer to its maximum value (0x7fffffff) and that will work
just as well.  In fact timer_interrupt sets the decrementer to that
value initially anyway, and we are sure to get into timer_interrupt
once interrupts are reenabled because we store 1 to the decrementer
interrupt flag in the lppaca (LPPACADECRINT(r12) here).

Reported-by: Subrata Modak <subrata@linux.vnet.ibm.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2010-05-21 17:31:08 +10:00
..
call_hpt.h
call_pci.h
call_sm.h
dt.c
exception.h
exception.S powerpc: Avoid bad relocations in iSeries code 2010-05-21 17:31:08 +10:00
htab.c
hvcall.S
hvlog.c
hvlpconfig.c
iommu.c
ipl_parms.h
irq.c
irq.h
it_exp_vpd_panel.h
it_lp_naca.h
Kconfig
ksyms.c
lpardata.c
lpevents.c
main_store.h
Makefile
mf.c
misc.S
naca.h
pci.c
pci.h
proc.c
processor_vpd.h
release_data.h
setup.c
setup.h
smp.c
smp.h
spcomm_area.h
vio.c
viopath.c
vpd_areas.h