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In blackfin, kgdb is running in delayed exception IRQ5 other than in
exception IRQ3 directly. Register reti other than retx in pt_regs is
the kgdb return address. So, don't put PC in gdb_regs into retx.
CC: Mike Frysinger <vapier@gentoo.org>
Signed-off-by: Sonic Zhang <sonic.adi@gmail.com>
Signed-off-by: Jason Wessel <jason.wessel@windriver.com>
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Blackfin needs it own arch specific probe_kernel_read() and
probe_kernel_write().
This was moved out of the kgdb code and into the
arch/blackfin/maccess.c, because it is a generic kernel api.
The arch specific kgdb.c for blackfin was cleaned of all functions
which exist in the kgdb core that do the same thing after resolving
the probe_kernel_read() and probe_kernel_write(). This also
eliminated the need for most of the #include's.
CC: Sonic Zhang <sonic.adi@gmail.com>
Signed-off-by: Jason Wessel <jason.wessel@windriver.com>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
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None of these vars/funcs were being used.
Signed-off-by: Sonic Zhang <sonic.zhang@analog.com>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
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The kgdb (in multiple places) and traps code developed pretty much
identical checks for how to access different regions of the Blackfin
memory map, but each wasn't 100%, so unify them to avoid duplication,
bitrot, and bugs with edge cases.
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
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The kgdb_ebin2mem() was decrementing the count variable to do parsing, but
then later still tries to use it based on its original meaning. So leave
it untouched and use a different variable to walk the memory.
Signed-off-by: Roel Kluin <roel.kluin@gmail.com>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
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The Blackfin kgdb code was all passing back positive errno values when it
really should have been using negative errno values.
Reported-by: Roel Kluin <roel.kluin@gmail.com>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/cooloney/blackfin-2.6
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/cooloney/blackfin-2.6: (171 commits)
Blackfin arch: fix bug - BF527 0.2 silicon has different CPUID (DSPID) value
Blackfin arch: Enlarge flash partition for kenel for bf533/bf537 boards
Blackfin arch: fix bug: kernel crash when enable SDIO host driver
Blackfin arch: Print FP at level KERN_NOTICE
Blackfin arch: drop ad73311 test code
Blackfin arch: update board default configs
Blackfin arch: Set PB4 as the default irq for bf548 board v1.4+.
Blackfin arch: fix typo in early printk bit size processing
Blackfin arch: enable reprogram cclk and sclk for bf518f-ezbrd
Blackfin arch: add SDIO host driver platform data
Blackfin arch: fix bug - kernel stops at initial console
Blackfin arch: fix bug - kernel crash after config IP for ethernet port
Blackfin arch: add sdh support for bf518f-ezbrd
Blackfin arch: fix bug - kernel detects BF532 incorrectly
Blackfin arch: add () to avoid warnings from gcc
Blackfin arch: change HWTRACE Kconfig and set it on default
Blackfin arch: Clean oprofile build path for blackfin
Blackfin arch: remove hardware PM code, oprofile not use it
Blackfin arch: rewrite get_sclk()/get_vco()
Blackfin arch: cleanup and unify the ins functions
...
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Signed-off-by: Mike Frysinger <vapier.adi@gmail.com>
Signed-off-by: Bryan Wu <cooloney@kernel.org>
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create an IN_MEM() macro to simplify comparing an address in an on-chip
region of memory and make things readable
Signed-off-by: Mike Frysinger <vapier.adi@gmail.com>
Signed-off-by: Bryan Wu <cooloney@kernel.org>
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Signed-off-by: Mike Frysinger <vapier.adi@gmail.com>
Signed-off-by: Bryan Wu <cooloney@kernel.org>
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Signed-off-by: Mike Frysinger <vapier.adi@gmail.com>
Signed-off-by: Bryan Wu <cooloney@kernel.org>
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Signed-off-by: Mike Frysinger <vapier.adi@gmail.com>
Signed-off-by: Bryan Wu <cooloney@kernel.org>
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Hardware breakpoint doesn't always work in kgdb. It works at the first
two times, but if you repeatedly trigger that hardware breakpoint, it
would slip over that point once in two times.
Fix it by always setting hw bp skip to 0. gdb does skip after hw bp trap.
Signed-off-by: Sonic Zhang <sonic.zhang@analog.com>
Signed-off-by: Bryan Wu <cooloney@kernel.org>
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management code
Blackfin dual core BF561 processor can support SMP like features.
https://docs.blackfin.uclinux.org/doku.php?id=linux-kernel:smp-like
In this patch, we provide SMP extend to Blackfin kernel and memory management code
Singed-off-by: Graf Yang <graf.yang@analog.com>
Signed-off-by: Mike Frysinger <vapier.adi@gmail.com>
Signed-off-by: Bryan Wu <cooloney@kernel.org>
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- (better, more, bigger ...) then -> (...) than
Signed-off-by: Frederik Schwarzer <schwarzerf@gmail.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
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Signed-off-by: Sonic Zhang <sonic.zhang@analog.com>
Signed-off-by: Bryan Wu <cooloney@kernel.org>
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instead of disabling all interrupts in single step debugging.
Skip single step if event priority of current instruction is higher than
that of the first instruction, from which gdb starts single step.
Signed-off-by: Sonic Zhang <sonic.zhang@analog.com>
Signed-off-by: Bryan Wu <cooloney@kernel.org>
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Signed-off-by: Sonic Zhang <sonic.zhang@analog.com>
Signed-off-by: Bryan Wu <bryan.wu@analog.com>
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