- 18 8月, 2009 1 次提交
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由 Magnus Damm 提交于
This patch updates the exception handling in the sleep code for SuperH Mobile. With the patch applied the sleep code always rewrites the VBR and resumes from the exception vector, re-initializes hardware and jumps straight to the original interrupt vector. Tested on sh7722 and sh7724 with "Sleep Mode", "Sleep Mode + SF" and "Software Standby Mode + SF" with CONFIG_SUSPEND. Signed-off-by: NMagnus Damm <damm@igel.co.jp> Signed-off-by: NPaul Mundt <lethal@linux-sh.org>
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- 16 8月, 2009 3 次提交
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由 Matt Fleming 提交于
Also, remove the "fix" to DW_CFA_def_cfa_register where we reset the frame's cfa_offset to 0. This action is incorrect when handling DW_CFA_def_cfa_register as the DWARF spec specifically states that the previous contents of cfa_offset should be used with the new register. The reason that I thought cfa_offset should be reset to 0 was because it was being assigned a bogus value prior to executing the DW_CFA_def_cfa_register op. It turns out that the bogus cfa_offset value came from interpreting .cfi_escape pseudo-ops (those used by the GNU extensions) as CFA_DW_def_cfa ops. Signed-off-by: NMatt Fleming <matt@console-pimps.org>
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由 Matt Fleming 提交于
The previous hack for calculating the return address for the first frame we unwind (dwarf_unwinder_dump) didn't always work. The problem was that it assumed once it read the rule for calculating the return address, there would be no new rules for calculating it. This isn't true because the way in which the CFA is calculated can change as you progress through a function and the return address is figured out using the CFA. Therefore, the way to calculate the return address can change. So, instead of using some offset from the beginning of dwarf_unwind_stack which is just a flakey approach, and instead of executing instructions from the FDE until the return address is setup, we now figure out the pc in dwarf_unwind_stack() just before we call dwarf_cfa_execute_insns(). Signed-off-by: NMatt Fleming <matt@console-pimps.org>
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由 Paul Mundt 提交于
This uses the BITS export as per x86 in order to allow the same Makefile to be used. Signed-off-by: NPaul Mundt <lethal@linux-sh.org>
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- 15 8月, 2009 8 次提交
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由 Magnus Damm 提交于
This patch updates the SuperH Mobile sleep assembly code with support for DBSC memory controller found in the sh7724 processor. Without this fix the memory hooked up to the sh7724 processor will never enter self-refresh mode before suspending to ram. The effect of this is that the memory contents most likeley will be lost upon resume which may or may not be what you want. Signed-off-by: NMagnus Damm <damm@igel.co.jp> Signed-off-by: NPaul Mundt <lethal@linux-sh.org>
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由 Magnus Damm 提交于
This patch updates the Solution Engine 7724 board code to use in-SoC KEYSC resources for the keyboard platform device. Using the in-SoC key scan controller fixes a crash-during-resume issue. Without this patch the KEYSC hardware block located in the board specific FPGA is used together with an external IRQ which is routed through the FPGA and handled by some board specific demux code. This board specific FPGA interrupt code does not implement desc->set_wake() so the enable_irq_wake() call in the sh_keysc driver will fail at suspend-to-ram time and the disable_irq_wake() will bomb out when resuming. Changing the platform data to use the in-SoC KEYSC hardware makes the se7724 board support code less special which is a good thing. Also, the board specific KEYSC pin setup code selects in-SoC pin functions already which makes the current FPGA platform device data look like a typo. Signed-off-by: NMagnus Damm <damm@igel.co.jp> Signed-off-by: NPaul Mundt <lethal@linux-sh.org>
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由 Matt Fleming 提交于
The way that the CFA is calculated can change as we progress through a function. If we see a DW_CFA_def_cfa_register op we need to reset the frame's cfa_offset value which may have been previously setup. Signed-off-by: NMatt Fleming <matt@console-pimps.org> Signed-off-by: NPaul Mundt <lethal@linux-sh.org>
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由 Paul Mundt 提交于
This implements EXPMASK initialization code for SH-4A parts, where it is possible to disable compat features that will go away in newer cores. Presently this includes disabling support for non-nop instructions in the rte delay slot, as well as a sleep instruction being placed in a delay slot (neither of which the kernel does any longer). As a result of this, any future offenders will have illegal slot exceptions generated for them. Associative writes for the memory-mapped cache array are still left enabled, until such a point that special cache operations for SH-4A are provided to move off of the current (and rather dated) SH-4 versions. Signed-off-by: NPaul Mundt <lethal@linux-sh.org>
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由 Paul Mundt 提交于
Future SH parts do not support any instruction but a nop in the rte delay slot, so make the change for all offending parts. SH-5 is excluded from this, and already has its own set of restrictions with regards to rte delay slot handling. Signed-off-by: NPaul Mundt <lethal@linux-sh.org>
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由 Paul Mundt 提交于
This inserts a ULONG_MAX entry at the end of the valid entries in the stack trace buffer so the default code doesn't need to scan to the end of available slots. This also makes the trace buffer termination behaviour consistent with the other architectures. Signed-off-by: NPaul Mundt <lethal@linux-sh.org>
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由 Paul Mundt 提交于
This flags the default unwinder as reliable, as it tends to be reliable enough for the purposes of the stacktrace buffer. We leave the unreliable cases for the unwind methods that we know to be completely broken. Signed-off-by: NPaul Mundt <lethal@linux-sh.org>
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由 Paul Mundt 提交于
This adopts the reliability checks from the x86 stacktrace code so known bad addresses are not recorded in the stack trace buffer. Signed-off-by: NPaul Mundt <lethal@linux-sh.org>
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- 14 8月, 2009 8 次提交
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由 Paul Mundt 提交于
save_stack_trace_tsk() and friends can be called from atomic context (as triggered by latencytop), and subsequently hit two problematic allocation points that were using GFP_KERNEL (these were dwarf_unwind_stack() and dwarf_frame_alloc_regs()). Convert these over to GFP_ATOMIC and get latencytop working with the DWARF unwinder. Signed-off-by: NPaul Mundt <lethal@linux-sh.org>
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由 Matt Fleming 提交于
Trying to figure out the best value for DWARF_ARCH_UNWIND_OFFSET is tricky at best. Various things can change the size (and offset from the beginning of the function) of the prologue. Notably, turning on ftrace adds calls to mcount at the beginning of functions, thereby pushing the prologue further into the function. So replace DWARF_ARCH_UNWIND_OFFSET with some code that continues to execute CFA instructions until the value of return address register is defined. This is safe to do because we know that the return address must have been pushed onto the frame before our first function call; we just can't figure out where at compile-time. Signed-off-by: NMatt Fleming <matt@console-pimps.org> Signed-off-by: NPaul Mundt <lethal@linux-sh.org>
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由 Paul Mundt 提交于
This is no longer used, kill it off. Signed-off-by: NPaul Mundt <lethal@linux-sh.org>
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由 Paul Mundt 提交于
The destination address might be unaligned, so set it with put_unaligned() for safety. This restores the previous behaviour, albeit through the proper API. Signed-off-by: NPaul Mundt <lethal@linux-sh.org>
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由 Paul Mundt 提交于
This was using internal symbols for unaligned accesses, bypassing the exposed interface for variable sized safe accesses. This converts all of the __get_unaligned_cpuXX() users over to get_unaligned() directly, relying on the cast to select the proper internal routine. Additionally, the __put_unaligned_cpuXX() case is superfluous given that the destination address is aligned in all of the current cases, so just drop that outright. Furthermore, this switches to the asm/unaligned.h header instead of the asm-generic version, which was silently bypassing the SH-4A optimized unaligned ops. Signed-off-by: NPaul Mundt <lethal@linux-sh.org>
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由 Matt Fleming 提交于
Annotate various assembly code paths with CFI assembler directives so that DWARF unwind info is available for the unwinder. Signed-off-by: NMatt Fleming <matt@console-pimps.org> Signed-off-by: NPaul Mundt <lethal@linux-sh.org>
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由 Matt Fleming 提交于
In order to use DWARF unwinder info the frame register has to contain a valid value. Whilst GCC takes care of this for C code, we have to do it ourselves for assembly. Signed-off-by: NMatt Fleming <matt@console-pimps.org> Signed-off-by: NPaul Mundt <lethal@linux-sh.org>
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由 Matt Fleming 提交于
This is a first cut at a generic DWARF unwinder for the kernel. It's still lacking DWARF64 support and the DWARF expression support hasn't been tested very well but it is generating proper stacktraces on SH for WARN_ON() and NULL dereferences. Signed-off-by: NMatt Fleming <matt@console-pimps.org> Signed-off-by: NPaul Mundt <lethal@linux-sh.org>
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- 13 8月, 2009 7 次提交
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由 Matt Fleming 提交于
Instead of implementing our own stack unwinder via dump_trace() we should use the new stack unwinder API because it is more modular. This change allows us to decouple the interface for generating stacktraces from the implementation of a stack unwinder. Signed-off-by: NMatt Fleming <matt@console-pimps.org> Signed-off-by: NPaul Mundt <lethal@linux-sh.org>
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由 Matt Fleming 提交于
Provide an interface for registering stack unwinders, where each unwinder is given a rating that describes its accuracy and complexity. The more accurate an unwinder is, the more complex it is. If a the current stack unwinder faults, then the stack unwinder with the next highest accuracy will be used in its place (provided one is available). For example, this allows unwinders, such as the DWARF unwinder, to liberally sprinkle BUG()s to catch badly formed DWARF debug info. Signed-off-by: NMatt Fleming <matt@console-pimps.org> Signed-off-by: NPaul Mundt <lethal@linux-sh.org>
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由 Matt Fleming 提交于
Copy the stacktrace ops code from x86 and provide a central function for use by functions that need to dump a callstack. Signed-off-by: NMatt Fleming <matt@console-pimps.org> Signed-off-by: NPaul Mundt <lethal@linux-sh.org>
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由 Marcin Slusarz 提交于
Signed-off-by: NMarcin Slusarz <marcin.slusarz@gmail.com> Cc: linux-sh@vger.kernel.org Signed-off-by: NPaul Mundt <lethal@linux-sh.org>
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由 Magnus Damm 提交于
Convert the AP325RXA board code to register devices at arch_initcall() time instead of device_initcall(). This fix unbreaks pcf8563 RTC driver support. Signed-off-by: NMagnus Damm <damm@igel.co.jp> Signed-off-by: NPaul Mundt <lethal@linux-sh.org>
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由 Magnus Damm 提交于
Convert the Migo-R board code to register devices at arch_initcall() time instead of __initcall(). This fix unbreaks migor_ts touch screen driver support. Signed-off-by: NMagnus Damm <damm@igel.co.jp> Signed-off-by: NPaul Mundt <lethal@linux-sh.org>
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由 Magnus Damm 提交于
Convert the processor platform device setup functions from __initcall() and sometimes device_initcall() to arch_initcall(). This makes sure that the platform devices are registered a bit earlier so the devices are available when drivers register using initcall levels earlier than device_initcall(). A good example is platform devices needed by i2c-sh_mobile.c which registers a bit earlier using subsys_initcall(). Signed-off-by: NMagnus Damm <damm@igel.co.jp> Signed-off-by: NPaul Mundt <lethal@linux-sh.org>
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- 07 8月, 2009 5 次提交
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由 Magnus Damm 提交于
This patch moves the Migo-R specific header file from mach-common/ into mach-migor/ and removes unused cruft. Signed-off-by: NMagnus Damm <damm@igel.co.jp> Signed-off-by: NPaul Mundt <lethal@linux-sh.org>
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由 Magnus Damm 提交于
This patch moves all the romImage related header files into the mach/ directory. Signed-off-by: NMagnus Damm <damm@igel.co.jp> Signed-off-by: NPaul Mundt <lethal@linux-sh.org>
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由 Magnus Damm 提交于
This patch adds support for LED9, LED10 and LED11 on the Solution Engine 7724 board. If CONFIG_PM is enabled then these LEDs are used to show the hardware sleep mode used by the processor. Useful to debug cpuidle. Signed-off-by: NMagnus Damm <damm@igel.co.jp> Signed-off-by: NPaul Mundt <lethal@linux-sh.org>
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由 Magnus Damm 提交于
This patch adds support for the NAND flash chip attached to CS4 on the KFR2R09 board. The device is driven by the platform device driver "onenand-flash". Signed-off-by: NMagnus Damm <damm@igel.co.jp> Signed-off-by: NPaul Mundt <lethal@linux-sh.org>
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由 Magnus Damm 提交于
This patch adds support for the WQVGA LCD display used by the KFR2R09 board. The LCD module is a TX07D34VM0AAA made by Hitachi, and this module is made up by a R61517 chip together with a 240x400 pixel display. The screen is attached to the SuperH Mobile LCDC using a 18-bit SYS bus. The register settings used by the SYS panel setup code are based on an out-of-tree driver which apart from duplicating all LCDC driver code and writing to non-existing hardware registers also never was posted for upstream merge. Signed-off-by: NMagnus Damm <damm@igel.co.jp> Signed-off-by: NPaul Mundt <lethal@linux-sh.org>
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- 05 8月, 2009 1 次提交
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由 Christoph Hellwig 提交于
Signed-off-by: NChristoph Hellwig <hch@lst.de> Signed-off-by: NPaul Mundt <lethal@linux-sh.org>
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- 04 8月, 2009 6 次提交
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由 Paul Mundt 提交于
Missing endif in the early printk case, fix it up.. Signed-off-by: NPaul Mundt <lethal@linux-sh.org>
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由 Kuninori Morimoto 提交于
Signed-off-by: NKuninori Morimoto <morimoto.kuninori@renesas.com> Signed-off-by: NPaul Mundt <lethal@linux-sh.org>
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由 Kuninori Morimoto 提交于
There was no big meaning in the support of SVGA, but 720p support is necessary for ms7724se board. So, this patch support 720p instead of SVGA. Signed-off-by: NKuninori Morimoto <morimoto.kuninori@renesas.com> Signed-off-by: NPaul Mundt <lethal@linux-sh.org>
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由 Magnus Damm 提交于
This patch removes the unused MSTPCRn register definitions from the SuperH Mobile code for sh7722, sh7723 and sh7724. Signed-off-by: NMagnus Damm <damm@igel.co.jp> Signed-off-by: NPaul Mundt <lethal@linux-sh.org>
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由 Magnus Damm 提交于
This patch adds hwblk support for the sh7724 processor. Signed-off-by: NMagnus Damm <damm@igel.co.jp> Signed-off-by: NPaul Mundt <lethal@linux-sh.org>
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由 Rafael Ignacio Zurita 提交于
This adds early printk support for SH770x (tested on SH7709 based hp6xx). Signed-off-by: NRafael Ignacio Zurita <rizurita@yahoo.com> Signed-off-by: NPaul Mundt <lethal@linux-sh.org>
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- 29 7月, 2009 1 次提交
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由 Paul Mundt 提交于
Adds an archhelp blurb for the romImage target so it is reflected in 'make help'. Signed-off-by: NPaul Mundt <lethal@linux-sh.org>
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