kernel.git/arch/powerpc/xmon, branch linux-4.10.y

powerpc/xmon: Add 'dt' command to dump trace buffers

2016-11-25T03:30:27Z

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

powerpc/xmon: Don't use ld on 32-bit

2016-09-13T07:37:02Z

In commit 31cdd0c39c75 ("powerpc/xmon: Fix SPR read/write commands and add command to dump SPRs") I added two uses of the "ld" instruction in spr_access.S. "ld" is a 64-bit instruction, so shouldn't be used on 32-bit CPUs. Replace it with PPC_LL which is a macro that gives us either "ld" or "lwz" depending on whether we're 64 or 32-bit. Fixes: 31cdd0c39c75 ("powerpc/xmon: Fix SPR read/write commands and add command to dump SPRs") Cc: stable@vger.kernel.org # v4.7+ Reported-by: John Paul Adrian Glaubitz Signed-off-by: Michael Ellerman

powerpc: Move cpu_has_feature() to a separate file

2016-08-01T01:15:03Z

We plan to use jump label for cpu_has_feature(). In order to implement this we need to include the linux/jump_label.h in asm/cputable.h. Unfortunately if we do that it leads to an include loop. The root of the problem seems to be that reg.h needs cputable.h (for CPU_FTRs), and then cputable.h via jump_label.h eventually pulls in hw_irq.h which needs reg.h (for MSR_EE). So move cpu_has_feature() to a separate file on its own. Signed-off-by: Kevin Hao Signed-off-by: Aneesh Kumar K.V [mpe: Rename to cpu_has_feature.h and flesh out change log] Signed-off-by: Michael Ellerman

Merge branch 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/scottwood/linux into next

2016-07-30T03:43:19Z

Freescale updates from Scott: "Highlights include more 8xx optimizations, device tree updates, and MVME7100 support."

powerpc/xmon: Dump ISA 2.07 SPRs

2016-07-14T10:26:24Z

Signed-off-by: Michael Ellerman

powerpc/xmon: Dump ISA 2.06 SPRs

2016-07-14T10:26:24Z

Signed-off-by: Michael Ellerman

powerpc/xmon: Adjust spacing of existing SPRs to make room for more

2016-07-14T10:26:23Z

Purely to make it pleasing to the eye. Signed-off-by: Michael Ellerman

powerpc/xmon: Move static regno into its only user

2016-07-14T10:26:23Z

Signed-off-by: Michael Ellerman

powerpc/xmon: Remove unused externs

2016-07-14T10:26:22Z

None of these are used, or have been since we merged ppc & ppc64. Signed-off-by: Michael Ellerman

powerpc32: provide VIRT_CPU_ACCOUNTING

2016-07-09T06:43:50Z

This patch provides VIRT_CPU_ACCOUTING to PPC32 architecture. PPC32 doesn't have the PACA structure, so we use the task_info structure to store the accounting data. In order to reuse on PPC32 the PPC64 functions, all u64 data has been replaced by 'unsigned long' so that it is u32 on PPC32 and u64 on PPC64 Signed-off-by: Christophe Leroy Signed-off-by: Scott Wood