aboutsummaryrefslogtreecommitdiffstats
path: root/arch/arm
Commit message (Collapse)AuthorAge
*-----------. Merge branches 'arnd-randcfg-fixes', 'debug', 'io' (early part), 'l2x0', ↵Russell King2011-10-25
|\ \ \ \ \ \ \ | | | | | | | | | | | | | | | | | | | | | | | | 'p2v', 'pgt' (early part) and 'smp' into for-linus
| | | | | | | * ARM: smp: fix clipping of number of CPUsRussell King2011-10-20
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Rather than clipping the number of CPUs using the compile-time NR_CPUS constant, use the runtime nr_cpu_ids value instead. This allows the nr_cpus command line option to work as expected. Cc: <stable@kernel.org> Reported-by: Mark Salter <msalter@redhat.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
| | | | | | | * ARM: 7115/4: move __exception and friends to asm/exception.hJamie Iles2011-10-17
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The definition of __exception_irq_entry for CONFIG_FUNCTION_GRAPH_TRACER=y needs linux/ftrace.h, but this creates a circular dependency with it's current home in asm/system.h. Create asm/exception.h and update all current users. v4: - rebase to rmk/for-next v3: - remove redundant includes of linux/ftrace.h v2: - document the usage restricitions of __exception* Cc: Zoltan Devai <zdevai@gmail.com> Signed-off-by: Jamie Iles <jamie@jamieiles.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
| | | | | | | * ARM: 7124/1: smp: Add a localtimer handler callable from C codeShawn Guo2011-10-17
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | In order to be able to handle localtimer directly from C code instead of assembly code, introduce handle_local_timer(), which is modeled after handle_IRQ(). Signed-off-by: Shawn Guo <shawn.guo@linaro.org> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
| | | | | | | * ARM: 7123/1: smp: Add an IPI handler callable from C codeShawn Guo2011-10-17
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | In order to be able to handle IPI directly from C code instead of assembly code, introduce handle_IPI(), which is modeled after handle_IRQ(). Signed-off-by: Marc Zyngier <marc.zyngier@arm.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
| | | | | | | * ARM: 7100/1: smp_scu: remove __init annotation from scu_enable()Shawn Guo2011-10-17
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | When Cortex-A9 MPCore resumes from Dormant or Shutdown modes, SCU needs to be re-enabled. This patch removes __init annotation from function scu_enable(), so that platform resume procedure can call it to re-enable SCU. Signed-off-by: Shawn Guo <shawn.guo@linaro.org> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
| | | | | | | * ARM: 7061/1: gic: convert logical CPU numbers into physical numbersWill Deacon2011-10-17
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The GIC driver must convert logical CPU numbers passed in from Linux into physical CPU numbers that are understood by the hardware. This patch uses the new cpu_logical_map macro for performing the conversion inside the GIC driver. Signed-off-by: Will Deacon <will.deacon@arm.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
| | | | | | | * ARM: 7060/1: smp: populate logical CPU mapping during bootWill Deacon2011-10-17
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | To allow booting Linux on a CPU with physical ID != 0, we need to provide a mapping from the logical CPU number to the physical CPU number. This patch adds such a mapping and populates it during boot. Signed-off-by: Will Deacon <will.deacon@arm.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
| | | | | | | * ARM: 7011/1: Add ARM cpu topology definitionVincent Guittot2011-10-17
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The affinity between ARM processors is defined in the MPIDR register. We can identify which processors are in the same cluster, and which ones have performance interdependency. We can define the cpu topology of ARM platform, that is then used by sched_mc and sched_smt. The default state of sched_mc and sched_smt config is disable. When enabled, the behavior of the scheduler can be modified with sched_mc_power_savings and sched_smt_power_savings sysfs interfaces. Changes since v4 : * Remove unnecessary parentheses and blank lines Changes since v3 : * Update the format of printk message * Remove blank line Changes since v2 : * Update the commit message and some comments Changes since v1 : * Update the commit message * Add read_cpuid_mpidr in arch/arm/include/asm/cputype.h * Modify header of arch/arm/kernel/topology.c * Modify tests and manipulation of MPIDR's bitfields * Modify the place and dependancy of the config * Modify Noop functions Signed-off-by: Vincent Guittot <vincent.guittot@linaro.org> Reviewed-by: Amit Kucheria <amit.kucheria@linaro.org> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
| | | | | | * | ARM: 7077/1: LPAE: Use a mask for physical addresses in page table entriesCatalin Marinas2011-10-06
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | With LPAE, the physical address mask is 40-bit while the page table entry is 64-bit. This patch introduces PHYS_MASK for the 2-level page table format, defined as ~0UL. Signed-off-by: Catalin Marinas <catalin.marinas@arm.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
| | | | | | * | ARM: 7076/1: LPAE: Add (pte|pmd)val_t type definitions as u32Catalin Marinas2011-10-06
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch defines the (pte|pmd)val_t as u32 and changes the page table types to be based on these. The PMD bits are converted to the corresponding type using the _AT macro. The flush_pmd_entry/clean_pmd_entry argument was changed to (void *) to allow them to be used with both PGD and PMD pointers and avoid code duplication. Signed-off-by: Catalin Marinas <catalin.marinas@arm.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
| | | | | | * | ARM: 7075/1: LPAE: Factor out 2-level page table definitions into separate filesCatalin Marinas2011-10-06
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch moves page table definitions from asm/page.h, asm/pgtable.h and asm/ptgable-hwdef.h into corresponding *-2level* files. Signed-off-by: Catalin Marinas <catalin.marinas@arm.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
| | | | | | * | ARM: 7059/1: LPAE: Use PMD_(SHIFT|SIZE|MASK) instead of PGDIR_*Catalin Marinas2011-08-23
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | PGDIR_SHIFT and PMD_SHIFT for the classic 2-level page table format have the same value (21). This patch converts the PGDIR_* uses in the kernel to the PMD_* equivalent so that LPAE builds can reuse the same code. Signed-off-by: Catalin Marinas <catalin.marinas@arm.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
| | | | | | * | ARM: 7058/1: LPAE: Cast the dma_addr_t argument to unsigned long in dma_to_virtCatalin Marinas2011-08-23
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This is to avoid a compiler warning when invoking the __bus_to_virt() macro. The dma_to_virt() function gets addresses within the 32-bit range. Signed-off-by: Catalin Marinas <catalin.marinas@arm.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
| | | | | * | | ARM: 7013/1: P2V: Remove ARM_PATCH_PHYS_VIRT_16BITNicolas Pitre2011-08-13
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This code can be removed now that MSM targets no longer need the 16-bit offsets for P2V. Signed-off-by: Nicolas Pitre <nicolas.pitre@linaro.org> Signed-off-by: Stephen Boyd <sboyd@codeaurora.org> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
| | | | | * | | ARM: 7012/1: Set proper TEXT_OFFSET for newer MSMsStephen Boyd2011-08-13
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | MSMs post 8x50 have 2Mb at the beginning of RAM reserved for shared memory. Since the kernel hasn't typically been told this RAM exists, PHYS_OFFSET has been set to 0xN0200000 and the memory atags passed to the kernel have matched. This doesn't play nicely with things such as AUTO_ZRELADDR, which doesn't work at all, and dynamic phys to virt, which requires an MSM specific workaround. Work around these issues by telling the kernel RAM starts at 0xN0000000 (it actually does) and fixup the atags from the bootloader (if necessary) to say the same. In addition, make sure to set TEXT_OFFSET at least 2Mb beyond the start of RAM so that the kernel doesn't end up being decompressed into shared memory. After doing this, AUTO_ZRELADDR should work on MSM with no problems and ARM_PATCH_PHYS_VIRT_16BIT should no longer be necessary. Signed-off-by: Stephen Boyd <sboyd@codeaurora.org> Acked-by: Nicolas Pitre <nicolas.pitre@linaro.org> Acked-by: David Brown <davidb@codeaurora.org> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
| | | | | * | | ARM: enable ARM_PATCH_PHYS_VIRT by defaultRussell King2011-08-11
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Enable virtual to physical translation patching by default in all kernels. Hide the option behind EMBEDDED. This can still be turned off if people desire, and they know what they're doing, to shrink the size of the kernel to a minimum. Acked-by: Will Deacon <will.deacon@arm.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
| | | | * | | | ARM: 7114/1: cache-l2x0: add resume entry for l2 in secure modeBarry Song2011-10-17
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | we save the l2x0 registers at the first initialization, and platform codes can get them to restore l2x0 status after wakeup. Cc: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com> Signed-off-by: Barry Song <Baohua.Song@csr.com> Reviewed-by: Santosh Shilimkar <santosh.shilimkar@ti.com> Tested-by: Shawn Guo <shawn.guo@linaro.org> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
| | | | * | | | ARM: 7090/1: CACHE-L2X0: filter start address can be 0 and is often 0Barry Song2011-10-17
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | this patch fixes the error in Rob Herring's ARM: 7009/1: l2x0: Add OF based initialization http://www.spinics.net/lists/arm-kernel/msg131123.html it has been in rmk/for-next with commit 41c86ff5b Cc: Shawn Guo <shawn.guo@linaro.org> Cc: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Barry Song <Baohua.Song@csr.com> Acked-by: Rob Herring <robherring2@gmail.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
| | | | * | | | ARM: 7089/1: L2X0: add explicit cpu_relax() for busy wait loopBarry Song2011-10-17
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | using cpu_relax in busy loops is a well-known idiom in the kernel. It's more for documentation purposes than technically needed here. Signed-off-by: Barry Song <Baohua.Song@csr.com> Acked-by: Arnd Bergmann <arnd@arndb.de> Reviewed-by: Jamie Iles <jamie@jamieiles.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
| | | | * | | | ARM: 7009/1: l2x0: Add OF based initializationRob Herring2011-10-17
| | | | | |_|/ | | | | |/| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This adds probing for ARM L2x0 cache controllers via device tree. Support includes the L210, L220, and PL310 controllers. The binding allows setting up cache RAM latencies and filter addresses (PL310 only). Signed-off-by: Rob Herring <rob.herring@calxeda.com> Acked-by: Grant Likely <grant.likely@secretlab.ca> Acked-by: Arnd Bergmann <arnd@arndb.de> Acked-by: Olof Johansson <olof@lixom.net> Acked-by: Barry Song <21cnbao@gmail.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
| | | * | | | ARM: io: remove IO_SPACE_LIMIT from SA11x0Russell King2011-08-17
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | SA11x0 only uses IO_SPACE_LIMIT for SOC_COMMON, so we can use the default value in asm/io.h. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
| | | * | | | ARM: io: remove IO_SPACE_LIMIT from platforms without PCI/ISARussell King2011-08-17
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Nothing should be using PCI/ISA IO on these platforms, so their IO_SPACE_LIMIT definitions are irrelevent. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
| | | * | | | ARM: io: remove IO_SPACE_LIMIT from platforms with ISA/PCI and 64K windowRussell King2011-08-17
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Remove IO_SPACE_LIMIT definitions from platforms which have a well defined ISA or PCI, and has a 64K window. EBSA110 - well defined set of ISA devices. Footbridge, Integrator, IXP4xx, VT8500 - PCI platforms. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
| | | * | | | ARM: io: add a default IO_SPACE_LIMIT definitionRussell King2011-08-17
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Add a default IO_SPACE_LIMIT definition. Explain the chosen value and suggest why platforms would want to make it larger. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
| | | * | | | ARM: io: RiscPC: eliminate private inb() et.al. definitionsRussell King2011-08-17
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | As we've got rid of the bit-31 set IO addresses, we can now use the standard inb() definitions and reduce the IO space limit to 64K. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
| | | * | | | ARM: io: RiscPC: make EASI_BASE a void iomem pointerRussell King2011-08-17
| | | | | | | | | | | | | | | | | | | | | | | | | | | | Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
| | | * | | | ARM: io: ecard: remove ioaddr() from ecard.cRussell King2011-08-17
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Remove ioaddr() usage from ecard.c, updating (and renaming) the constants in RiscPC's hardware.h to contain the proper translation. As this gets rid of the last ioaddr() usage, kill that too. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
| | | * | | | ARM: io: ecard: move ioaddr() inside __ecard_addressRussell King2011-08-17
| | | | | | | | | | | | | | | | | | | | | | | | | | | | Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
| | | * | | | ARM: io: RiscPC: define io addresses relative to IO_BASERussell King2011-08-17
| | | | | | | | | | | | | | | | | | | | | | | | | | | | Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
| | | * | | | ARM: io: s3c2410: remove ioaddr()Russell King2011-08-17
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | There is only one user of ioaddr() in the kernel, and that is the Acorn expansion card core code. S3C2410 does not use this code, and so the definition of ioaddr() is redundant. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
| | * | | | | ARM: 7116/1: debug: provide dummy default option for DEBUG_LL UART choiceWill Deacon2011-10-17
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Defaulting to DEBUG_ICEDCC will cause systems to hang during boot unless a hardware debugger is listening to the debug comms. channel. This patch adds a dummy UART option as the default DEBUG_LL choice which requires the platform to do the right thing. Acked-by: Stephen Boyd <sboyd@codeaurora.org> Tested-by: Marc Zyngier <marc.zyngier@arm.com> Signed-off-by: Will Deacon <will.deacon@arm.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
| | * | | | | ARM: 7097/1: debug: Move DEBUG_ICEDCC into the DEBUG_LL choiceStephen Boyd2011-10-17
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | DEBUG_ICEDCC support is just another DEBUG_LL choice and selecting it along with other DEBUG_LL options doesn't make much sense. Put it into the DEBUG_LL choice to avoid confusion. Signed-off-by: Stephen Boyd <sboyd@codeaurora.org> Acked-by: Will Deacon <will.deacon@arm.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
| | * | | | | ARM: 7096/1: debug: Add UART1 config choicesStephen Boyd2011-10-17
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | ARM patch 7072/1 (debug: use kconfig choice for selecting DEBUG_LL UART) didn't notice that the Kconfigs relied on being unselected to configure a different serial port. Since there is no NONE option in a choice menu, explicitly add the other option so that both serial ports can be selected. Signed-off-by: Stephen Boyd <sboyd@codeaurora.org> Acked-by: Will Deacon <will.deacon@arm.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
| | * | | | | ARM: 7073/1: debug: augment DEBUG_LL Kconfig help to clarify behaviourWill Deacon2011-10-17
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Enabled DEBUG_LL hardcodes the UART address into the kernel and results in a non-portable kernel image. Since this option is only intended for use when debugging early boot failures, supporting multiple platforms in such a configuration is not the intended use-case. This patch documents this limitation in the DEBUG_LL Kconfig help text, so that users are aware of the portability restrictions that are associated with enabling low-level debugging support. Reported-by: Sascha Hauer <s.hauer@pengutronix.de> Signed-off-by: Will Deacon <will.deacon@arm.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
| | * | | | | ARM: 7072/1: debug: use kconfig choice for selecting DEBUG_LL UARTWill Deacon2011-10-17
| | | |/ / / | | |/| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Enabling CONFIG_DEBUG_LL (which is required for earlyprintk) hardwires the debug UART address into the kernel, so that we can print before the platform is initialised. If the user inadvertently selects multiple platforms with DEBUG_LL enabled, the UART address may not be correct and will likely cause the kernel to hang in the very early stages of boot. This patch, based on a skeleton from Russell, uses a Kconfig choice for selecting the DEBUG_LL UART, therefore allowing the user to make a choice about the supported platform when DEBUG_LL is enabled. Acked-by: Nicolas Pitre <nicolas.pitre@linaro.org> Signed-off-by: Will Deacon <will.deacon@arm.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
| * | | | | ARM: include linux/highmem.h in uaccess functionsArnd Bergmann2011-10-02
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | When highpte support is enabled, this is required to build the kernel. Signed-off-by: Arnd Bergmann <arnd@arndb.de>
| * | | | | ARM: common/vic: use proper __iomem annotationsArnd Bergmann2011-10-01
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | In vic_init, we pass addr into readl, so it needs to be a pointer, not a u32 address. Signed-off-by: Arnd Bergmann <arnd@arndb.de>
| * | | | | ARM: OC_ETM should not select ARM_AMBAArnd Bergmann2011-10-01
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The CONFIG_ARM_AMBA symbol is selected by the platforms that support AMBA, and the other platforms (e.g. orion) might not be able to build that code at all when they do not support the clk API. Instead, make sure that OC_ETM is only built on platforms that do support the amba subsystem already. Signed-off-by: Arnd Bergmann <arnd@arndb.de>
| * | | | | ARM: pci: always export pcibios_bus_to_resourceArnd Bergmann2011-10-01
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Some PCI drivers call pcibios_bus_to_resource directly, but it is only exported when CONFIG_HOTPLUG is set, because it was initially mean for pccard support. Moving the export out of the #ifdef lets us avoid these build errors: ERROR: "pcibios_bus_to_resource" [drivers/video/vt8623fb.ko] undefined! ERROR: "pcibios_bus_to_resource" [drivers/video/arkfb.ko] undefined! ERROR: "pcibios_bus_to_resource" [drivers/video/s3fb.ko] undefined! Signed-off-by: Arnd Bergmann <arnd@arndb.de>
| * | | | | ARM: add io{read,write}{16,32}be functionsArnd Bergmann2011-10-01
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | These functions are used in some PCI drivers with big-endian MMIO space, and they are trivial to add here. Signed-off-by: Arnd Bergmann <arnd@arndb.de>
| * | | | | ARM: limit CONFIG_HAVE_IDE to platforms that doArnd Bergmann2011-10-01
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Support for IDE drivers should not be automatic, since most platforms cannot actually support any IDE low-level drivers. This partly reverts 2064c946e "ARM: always select HAVE_IDE" to set this symbol only when either a PC-style bus (PCI, ISA, PCMCIA) is enabled or a platform is used that is known to have an existing driver in drivers/ide. New platforms should not need this option and just use CONFIG_ATA with drivers/ata/. Signed-off-by: Arnd Bergmann <arnd@arndb.de>
| * | | | | ARM: pm: let platforms select cpu_suspend supportArnd Bergmann2011-10-01
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Support for the cpu_suspend functions is only built-in when CONFIG_PM_SLEEP is enabled, but omap3/4, exynos4 and pxa always call cpu_suspend when CONFIG_PM is enabled. Signed-off-by: Arnd Bergmann <arnd@arndb.de>
| * | | | | ARM: vfp: use -mfloat-abi=soft to build vfpArnd Bergmann2011-10-01
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Distros are starting to ship with toolchains defaulting to hardfloat. Using such a compiler to build the kernel fails in the VFP directory with arch/arm/vfp/entry.S:1:0: sorry, unimplemented: -mfloat-abi=hard and VFP Adding -mfloat-abi=soft to the gcc command line fixes this. Signed-off-by: Arnd Bergmann <arnd@arndb.de>
| * | | | | ARM: allow building alignment.c without PROC_FSArnd Bergmann2011-10-01
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The two functions cpu_is_v6_unaligned and safe_usermode are only defined when CONFIG_PROC_FS is enabled, but are used outside of the #ifdef. Signed-off-by: Arnd Bergmann <arnd@arndb.de> Cc: Dave Martin <dave.martin@linaro.org>
| * | | | | ARM: always use ARM_UNWIND for thumb2 kernelsArnd Bergmann2011-10-01
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Thumb2 kernels cannot be built with frame pointers, but can use the ARM_UNWIND feature for unwinding instead. This makes sure that all features that rely on unwinding includeing CONFIG_LATENCYTOP and FAULT_INJECTION_STACKTRACE_FILTER do not enable frame pointers when the unwinder is already selected, and we always build with the unwinder when we want a thumb2 kernel, to make sure we do not get the frame pointers instead. A different option would be to redefine the CONFIG_FRAME_POINTERS option on ARM to mean builing with either frame pointers or the unwinder, and then select which one to use based on the CPU architecture or another user option. That would still allow building thumb2 kernels without the unwinder but would also be more confusing. Signed-off-by: Arnd Bergmann <arnd@arndb.de>
| * | | | | ARM: SMP depends on MMUArnd Bergmann2011-10-01
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The SMP implementation on ARM heavily depends on MMU-only code. As long as nobody is interested in fixing this, let's disable the SMP option when building for nommu. Signed-off-by: Arnd Bergmann <arnd@arndb.de>
| * | | | | ARM: export rtc_lock for nvram driverArnd Bergmann2011-10-01
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The rtc_lock is used by both the nvram and rtc drivers, so we need to export it if at least one of the two is built, not just for the rtc driver. Signed-off-by: Arnd Bergmann <arnd@arndb.de>
* | | | | | ARM: S3C24XX: Fix s3c24xx build errors if !CONFIG_PMDomenico Andreoli2011-10-21
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | v2: - register_syscore_ops(&s3c24xx_irq_syscore_ops) does not need to be conditionally compiled out, it is already optimized out on !CONFIG_PM - fix also s3c2412 and s3c2416 affected by the same build issue v1: s3c2440.c fails to build if !CONFIG_PM because in such case s3c2410_pm_syscore_ops is not defined. Same error should happen also in s3c2410.c and s3c2442.c Signed-off-by: Domenico Andreoli <cavokz@gmail.com> Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
* | | | | | ARM: S5P: fix offset calculation on gpio-interruptMarek Szyprowski2011-10-21
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Offsets of the irq controller registers were calculated correctly only for first GPIO bank. This patch fixes calculation of the register offsets for all GPIO banks. Reported-by: Sylwester Nawrocki <s.nawrocki@samsung.com> Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com> Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com> Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
generated by cgit v1.2.2 (git 2.25.0) at 2024-12-02 16:15:23 -0500