This patch consists of:
- Fix the pvr mask for checking pvr in cputable.c
- Fix the cpu name as consistent with cpu name is describled in dts file
Signed-off-by: Vinh Nguyen Huu Tuong <vhtnguyen@apm.com>
Signed-off-by: Josh Boyer <jwboyer@gmail.com>
The AppliedMicro APM8018X embedded processor targets embedded applications that
require low power and a small footprint. It features a PowerPC 405 processor
core built in a 65nm low-power CMOS process with a five-stage pipeline executing
up to one instruction per cycle. The family has 128-kbytes of on-chip memory,
a 128-bit local bus and on-chip DDR2 SDRAM controller with 16-bit interface.
Signed-off-by: Tanmay Inamdar <tinamdar@apm.com>
Signed-off-by: Josh Boyer <jwboyer@gmail.com>
All these files were including module.h just for the basic
EXPORT_SYMBOL infrastructure. We can shift them off to the
export.h header which is a way smaller footprint and thus
realize some compile time gains.
Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
Commit af9eef3c7b caused cpu_setup to see
the_cpu_spec, rather than the source struct. However, on 32-bit, the
return value of identify_cpu was being used for feature fixups, and
identify_cpu was returning the source struct. So if cpu_setup patches
the feature bits, the update won't affect the fixups.
Signed-off-by: Scott Wood <scottwood@freescale.com>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
We are missing FPU feature bit that user space may require. In the
64-bit mode this gets set since we pull it in via COMMON_USER_PPC64. We
just explicitly set it so user space will be happy again.
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
Some of the 64bit PPC CPU features are MMU-related, so this patch moves
them to MMU_FTR_ bits. All cpu_has_feature()-style tests are moved to
mmu_has_feature(), and seven feature bits are freed as a result.
Signed-off-by: Matt Evans <matt@ozlabs.org>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
This bit indicates that we are operating in hypervisor mode on a CPU
compliant to architecture 2.06 or later (currently server only).
We set it on POWER7 and have a boot-time CPU setup function that
clears it if MSR:HV isn't set (booting under a hypervisor).
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
The CPU_FTRS_POSSIBLE and CPU_FTRS_ALWAYS defines did not encompass
e5500 CPU features when built for 64-bit. This causes issues with
cpu_has_feature() as it utilizes the POSSIBLE & ALWAYS defines as part
of its check.
Create a unique CPU_FTRS_E5500 (as its different from CPU_FTRS_E500MC),
created a new group for 64-bit Book3e based CPUs and add CPU_FTRS_E5500
to that group.
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
When calling setup_cpu() on 64-bit, we pass a pointer to the
cputable entry we have found. This used to be fine when cur_cpu_spec
was a pointer to that entry, but nowadays, we copy the entry into
a separate variable, and we do so before we call the setup_cpu()
callback. That means that any attempt by that callback at patching
the CPU table entry (to adjust CPU features for example) will patch
the wrong table.
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
The DD2 core still has some unstability. Define CPU_FTR_476_DD2 to
enable workarounds in later patches.
This is based on an earlier, unreleased patch for DD1 by Ben Herrenschmidt.
Signed-off-by: Dave Kleikamp <shaggy@linux.vnet.ibm.com>
Signed-off-by: Josh Boyer <jwboyer@linux.vnet.ibm.com>
Decoding machine checks is CPU specific and so machine_check_generic doesn't
do the right thing on 64bit chips. Luckily we never call into this code
because we call ppc_md.machine_check_exception instead if available.
Since we check cur_cpu_spec->machine_check before calling it, we may as
well remove machine_check_generic from 64bit archs.
Signed-off-by: Anton Blanchard <anton@samba.org>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
This adds the POWER7+ cputable entry for the PVR 0x004a0000. Rest is
the same as vanilla POWER7.
Signed-off-by: Michael Neuling <mikey@neuling.org>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
The new e5500 core is similar to the e500mc core but adds 64-bit
support. We support running it in 32-bit mode as it is identical to the
e500mc.
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
This patch adds CPU, device tree, defconfig and bluestone board
support for APM821xx SoC.
Signed-off-by: Tirumala R Marri <tmarri@apm.com>
Signed-off-by: Josh Boyer <jwboyer@linux.vnet.ibm.com>
There are two entries for .cpu_user_features in
arch/powerpc/kernel/cputable.c. Remove the one that doesn't belong
Signed-off-by: Dave Kleikamp <shaggy@linux.vnet.ibm.com>
Signed-off-by: Josh Boyer <jwboyer@linux.vnet.ibm.com>
The recent AMCC 405EX Rev D without Security uses a PVR value
that matches the old 405EXr Rev A/B with Security.
The 405EX Rev D without Security would be shown
incorrectly as an 405EXr. The pvr_mask of 0xffff0004
is no longer sufficient to distinguish the 405EX from 405EXr.
This patch replaces 2 entries in the cpu_specs table
and adds 8 more, each using pvr_mask of 0xffff000f
and appropriate pvr_value to distinguish the AMCC
PowerPC 405EX and 405EXr instances.
The cpu_name for these entries now includes the
Rev, in similar fashion to the 440GX.
Signed-off-by: Lee Nipper <lee.nipper@gmail.com>
Signed-off-by: Josh Boyer <jwboyer@linux.vnet.ibm.com>
