- 09 7月, 2013 1 次提交
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由 Stephen Warren 提交于
Macro __INIT is used to place various code in head-common.S into the init section. This should be matched by a closing __FINIT. Also, add an explicit ".text" to ensure subsequent code is placed into the correct section; __FINIT is simply a closing marker to match __INIT and doesn't guarantee to revert to .text. This historically caused no problem, because macro __CPUINIT was used at the exact location where __FINIT was missing, which then placed following code into the cpuinit section. However, with commit 22f0a273 "init.h: remove __cpuinit sections from the kernel" applied, __CPUINIT becomes a no-op, thus leaving all this code in the init section, rather than the regular text section. This caused issues such as secondary CPU boot failures or crashes. Signed-off-by: NStephen Warren <swarren@nvidia.com> Acked-by: NPaul Gortmaker <paul.gortmaker@windriver.com> Signed-off-by: NRussell King <rmk+kernel@arm.linux.org.uk>
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- 01 2月, 2013 1 次提交
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由 Uwe Kleine-König 提交于
This makes cr_alignment a constant 0 to break code that tries to modify the value as it's likely that it's built on wrong assumption when CONFIG_CPU_CP15 isn't defined. For code that is only reading the value 0 is more or less a fine value to report. Signed-off-by: NUwe Kleine-König <u.kleine-koenig@pengutronix.de> Message-Id: 1358413196-5609-2-git-send-email-u.kleine-koenig@pengutronix.de (v8)
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- 11 5月, 2011 1 次提交
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由 Grant Likely 提交于
The dtb is passed to the kernel via register r2, which is the same method that is used to pass an atags pointer. This patch modifies __vet_atags to not clear r2 when it encounters a dtb image. v2: fixed bugs pointed out by Nicolas Pitre Tested-by: NTony Lindgren <tony@atomide.com> Signed-off-by: NGrant Likely <grant.likely@secretlab.ca>
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- 16 2月, 2011 1 次提交
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由 Russell King 提交于
Since the debug macros no longer depend on the machine type information, the machine type lookup can be deferred to setup_arch() in setup.c which simplifies the code somewhat. We also move the __error_a functionality into setup.c for displaying a message when a bad machine ID is passed to the kernel via the LL debug code. We also log this into the kernel ring buffer which makes it possible to retrieve the message via a debugger. Original idea from Grant Likely. Acked-by: NGrant Likely <grant.likely@secretlab.ca> Tested-by: NTony Lindgren <tony@atomide.com> Signed-off-by: NRussell King <rmk+kernel@arm.linux.org.uk>
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- 15 1月, 2011 1 次提交
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由 Russell King 提交于
When DEBUG_LL is not set, we don't want __error_a re-entering __lookup_machine_type - we want it to go to the error function. This used to be the case before we reorganized the layout for hotplug cpu, as we used to fall through to __error. With the changed layout, we need an explicit branch here instead. Signed-off-by: NRussell King <rmk+kernel@arm.linux.org.uk>
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- 08 10月, 2010 6 次提交
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由 Russell King 提交于
Signed-off-by: NRussell King <rmk+kernel@arm.linux.org.uk>
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由 Russell King 提交于
__error and __error_p may be used by secondary CPUs, so these need to be in the cpuinit section. Signed-off-by: NRussell King <rmk+kernel@arm.linux.org.uk>
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由 Russell King 提交于
Move these functions, which are only ever used during boot CPU initialization, to the init section. Signed-off-by: NRussell King <rmk+kernel@arm.linux.org.uk>
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由 Russell King 提交于
This allows us to relocate __mmap_switched and associated data away from the head section. Signed-off-by: NRussell King <rmk+kernel@arm.linux.org.uk>
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由 Russell King 提交于
When hotplug CPU is enabled, we need to keep the list of supported CPUs, their setup functions, and __lookup_processor_type in place so that we can find and initialize secondary CPUs. Move these into the __CPUINIT section. Signed-off-by: NRussell King <rmk+kernel@arm.linux.org.uk>
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由 Russell King 提交于
Use _sdata as the start of the data section, rather than _data. Signed-off-by: NRussell King <rmk+kernel@arm.linux.org.uk>
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- 08 11月, 2009 1 次提交
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由 Nicolas Pitre 提交于
That code was refactored a long time ago, but one particular label didn't get adjusted properly which broke the listing of supported machines. Signed-off-by: NNicolas Pitre <nico@marvell.com> Signed-off-by: NRussell King <rmk+kernel@arm.linux.org.uk>
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- 03 10月, 2009 1 次提交
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由 David Brown 提交于
From: David Brown <davidb@quicinc.com> The ATAG_CORE is allowed to be empty. Although this is handled by parse_tag_core(), __vet_atags during startup rejects this tag unless it contains data. Allow the initial tag to be either the full size, or empty. Signed-off-by: NDavid Brown <davidb@quicinc.com> Signed-off-by: NRussell King <rmk+kernel@arm.linux.org.uk>
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- 24 7月, 2009 2 次提交
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由 Catalin Marinas 提交于
This patch implements the ARM/Thumb-2 unified kernel start-up and exception handling code. Signed-off-by: NCatalin Marinas <catalin.marinas@arm.com>
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由 Catalin Marinas 提交于
Since the Thumb-2 instructions can be 16-bit wide, data in the .text sections may not be aligned to a 32-bit word and this leads to unaligned exceptions. This patch does not affect the ARM code generation. Signed-off-by: NCatalin Marinas <catalin.marinas@arm.com>
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- 01 12月, 2008 1 次提交
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由 Russell King 提交于
Update to use the asm/sections.h header rather than declaring these symbols ourselves. Change __data_start to _data to conform with the naming found within asm/sections.h. Signed-off-by: NRussell King <rmk+kernel@arm.linux.org.uk>
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- 01 9月, 2008 1 次提交
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由 Catalin Marinas 提交于
This declaration specifies the "function" type and size for various assembly functions, mainly needed for generating the correct branch instructions in Thumb-2. Signed-off-by: NCatalin Marinas <catalin.marinas@arm.com> Signed-off-by: NRussell King <rmk+kernel@arm.linux.org.uk>
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- 03 8月, 2008 1 次提交
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由 Russell King 提交于
Move platform independent header files to arch/arm/include/asm, leaving those in asm/arch* and asm/plat* alone. Signed-off-by: NRussell King <rmk+kernel@arm.linux.org.uk>
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- 19 4月, 2008 1 次提交
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由 Lennert Buytenhek 提交于
If we fail to boot due to an unsupported processor ID, print the processor ID as part of the failure message. Signed-off-by: NLennert Buytenhek <buytenh@marvell.com> Acked-by: NNicolas Pitre <nico@marvell.com> Signed-off-by: NRussell King <rmk+kernel@arm.linux.org.uk>
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- 06 3月, 2008 1 次提交
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由 Greg Ungerer 提交于
Move the definitions of ATAG_CORE and ATAG_CORE_SIZE in head.S to head-common.S. There is no use of these in head.S itself, but they are used in head-common.S. When building for the !CONFIG_MMU case these were not defined when compiling head-nommu.S (which includes head-common.S). Signed-off-by: NGreg Ungerer <gerg@uclinux.org> Signed-off-by: NRussell King <rmk+kernel@arm.linux.org.uk>
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- 12 7月, 2007 1 次提交
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由 Bill Gatliff 提交于
Examines the ATAGS pointer (r2) at boot, and interprets a nonzero value as a reference to an ATAGS structure. A suitable ATAGS structure replaces the kernel's command line. Signed-off-by: NBill Gatliff <bgat@billgatliff.com> Signed-off-by: NRussell King <rmk+kernel@arm.linux.org.uk>
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- 27 3月, 2006 1 次提交
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由 Hyok S. Choi 提交于
This patch adds nommu version start-up code head-nommu.S. The common part of the start-up codes is moved to head-common.S. Signed-off-by: NHyok S. Choi <hyok.choi@samsung.com> Signed-off-by: NRussell King <rmk+kernel@arm.linux.org.uk>
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