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c265735f |
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22-Aug-2023 |
Christophe Leroy <christophe.leroy@csgroup.eu> |
powerpc/85xx: Mark some functions static and add missing includes to fix no previous prototype error corenet{32/64}_smp_defconfig leads to: CC arch/powerpc/sysdev/ehv_pic.o arch/powerpc/sysdev/ehv_pic.c:45:6: error: no previous prototype for 'ehv_pic_unmask_irq' [-Werror=missing-prototypes] 45 | void ehv_pic_unmask_irq(struct irq_data *d) | ^~~~~~~~~~~~~~~~~~ arch/powerpc/sysdev/ehv_pic.c:52:6: error: no previous prototype for 'ehv_pic_mask_irq' [-Werror=missing-prototypes] 52 | void ehv_pic_mask_irq(struct irq_data *d) | ^~~~~~~~~~~~~~~~ arch/powerpc/sysdev/ehv_pic.c:59:6: error: no previous prototype for 'ehv_pic_end_irq' [-Werror=missing-prototypes] 59 | void ehv_pic_end_irq(struct irq_data *d) | ^~~~~~~~~~~~~~~ arch/powerpc/sysdev/ehv_pic.c:66:6: error: no previous prototype for 'ehv_pic_direct_end_irq' [-Werror=missing-prototypes] 66 | void ehv_pic_direct_end_irq(struct irq_data *d) | ^~~~~~~~~~~~~~~~~~~~~~ arch/powerpc/sysdev/ehv_pic.c:71:5: error: no previous prototype for 'ehv_pic_set_affinity' [-Werror=missing-prototypes] 71 | int ehv_pic_set_affinity(struct irq_data *d, const struct cpumask *dest, | ^~~~~~~~~~~~~~~~~~~~ arch/powerpc/sysdev/ehv_pic.c:112:5: error: no previous prototype for 'ehv_pic_set_irq_type' [-Werror=missing-prototypes] 112 | int ehv_pic_set_irq_type(struct irq_data *d, unsigned int flow_type) | ^~~~~~~~~~~~~~~~~~~~ CC arch/powerpc/sysdev/fsl_rio.o arch/powerpc/sysdev/fsl_rio.c:102:5: error: no previous prototype for 'fsl_rio_mcheck_exception' [-Werror=missing-prototypes] 102 | int fsl_rio_mcheck_exception(struct pt_regs *regs) | ^~~~~~~~~~~~~~~~~~~~~~~~ arch/powerpc/sysdev/fsl_rio.c:306:5: error: no previous prototype for 'fsl_map_inb_mem' [-Werror=missing-prototypes] 306 | int fsl_map_inb_mem(struct rio_mport *mport, dma_addr_t lstart, | ^~~~~~~~~~~~~~~ arch/powerpc/sysdev/fsl_rio.c:357:6: error: no previous prototype for 'fsl_unmap_inb_mem' [-Werror=missing-prototypes] 357 | void fsl_unmap_inb_mem(struct rio_mport *mport, dma_addr_t lstart) | ^~~~~~~~~~~~~~~~~ arch/powerpc/sysdev/fsl_rio.c:445:5: error: no previous prototype for 'fsl_rio_setup' [-Werror=missing-prototypes] 445 | int fsl_rio_setup(struct platform_device *dev) | ^~~~~~~~~~~~~ CC arch/powerpc/sysdev/fsl_rmu.o arch/powerpc/sysdev/fsl_rmu.c:362:6: error: no previous prototype for 'msg_unit_error_handler' [-Werror=missing-prototypes] 362 | void msg_unit_error_handler(void) | ^~~~~~~~~~~~~~~~~~~~~~ CC arch/powerpc/platforms/85xx/corenet_generic.o arch/powerpc/platforms/85xx/corenet_generic.c:33:13: error: no previous prototype for 'corenet_gen_pic_init' [-Werror=missing-prototypes] 33 | void __init corenet_gen_pic_init(void) | ^~~~~~~~~~~~~~~~~~~~ arch/powerpc/platforms/85xx/corenet_generic.c:51:13: error: no previous prototype for 'corenet_gen_setup_arch' [-Werror=missing-prototypes] 51 | void __init corenet_gen_setup_arch(void) | ^~~~~~~~~~~~~~~~~~~~~~ arch/powerpc/platforms/85xx/corenet_generic.c:104:12: error: no previous prototype for 'corenet_gen_publish_devices' [-Werror=missing-prototypes] 104 | int __init corenet_gen_publish_devices(void) | ^~~~~~~~~~~~~~~~~~~~~~~~~~~ CC arch/powerpc/platforms/85xx/qemu_e500.o arch/powerpc/platforms/85xx/qemu_e500.c:28:13: error: no previous prototype for 'qemu_e500_pic_init' [-Werror=missing-prototypes] 28 | void __init qemu_e500_pic_init(void) | ^~~~~~~~~~~~~~~~~~ CC arch/powerpc/kernel/pmc.o arch/powerpc/kernel/pmc.c:78:6: error: no previous prototype for 'power4_enable_pmcs' [-Werror=missing-prototypes] 78 | void power4_enable_pmcs(void) | ^~~~~~~~~~~~~~~~~~ Signed-off-by: Christophe Leroy <christophe.leroy@csgroup.eu> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> Link: https://msgid.link/c90780017b624b91771a3e4240dcbadc68137915.1692684784.git.christophe.leroy@csgroup.eu
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#
81d7cac4 |
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24-Jul-2023 |
Rob Herring <robh@kernel.org> |
powerpc: Explicitly include correct DT includes The DT of_device.h and of_platform.h date back to the separate of_platform_bus_type before it as merged into the regular platform bus. As part of that merge prepping Arm DT support 13 years ago, they "temporarily" include each other. They also include platform_device.h and of.h. As a result, there's a pretty much random mix of those include files used throughout the tree. In order to detangle these headers and replace the implicit includes with struct declarations, users need to explicitly include the correct includes. Signed-off-by: Rob Herring <robh@kernel.org> [mpe: Fixup maple/setup.c which needs platform_device] Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> Link: https://msgid.link/20230724210247.778034-1-robh@kernel.org
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#
f892ac77 |
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09-Jun-2023 |
Rob Herring <robh@kernel.org> |
powerpc: fsl: Use of_property_read_reg() to parse "reg" Use the recently added of_property_read_reg() helper to get the untranslated "reg" address value. Signed-off-by: Rob Herring <robh@kernel.org> [mpe: Add required include of of_address.h] Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> Link: https://msgid.link/20230609183151.1766261-1-robh@kernel.org
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#
c4ae1799 |
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09-Jun-2023 |
Rob Herring <robh@kernel.org> |
powerpc: fsl_rio: Use of_range_to_resource() for "ranges" parsing "ranges" is a standard property with common parsing functions. Users shouldn't be implementing their own parsing of it. Refactor the FSL RapidIO "ranges" parsing to use of_range_to_resource() instead. One change is the original code would look for "#size-cells" and "#address-cells" in the parent node if not found in the port child nodes. That is non-standard behavior and not necessary AFAICT. In 2011 in commit 54986964c13c ("powerpc/85xx: Update SRIO device tree nodes") there was an ABI break. The upstream .dts files have been correct since at least that point. Signed-off-by: Rob Herring <robh@kernel.org> [mpe: Remove now unused "cell" variable] Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> Link: https://msgid.link/20230609183244.1767325-1-robh@kernel.org "ranges" is a standard property with common parsing functions. Users shouldn't be implementing their own parsing of it. Refactor the FSL RapidIO "ranges" parsing to use of_range_to_resource() instead. One change is the original code would look for "#size-cells" and "#address-cells" in the parent node if not found in the port child nodes. That is non-standard behavior and not necessary AFAICT. In 2011 in commit 54986964c13c ("powerpc/85xx: Update SRIO device tree nodes") there was an ABI break. The upstream .dts files have been correct since at least that point. Signed-off-by: Rob Herring <robh@kernel.org> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> Link: https://msgid.link/20230609183244.1767325-1-robh@kernel.org
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de8d11bc |
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27-Mar-2023 |
Rob Herring <robh@kernel.org> |
powerpc/fsl_rio: Use of_iomap() Replace of_address_to_resource()+ioremap() with a call to of_iomap() which does both of those steps. Signed-off-by: Rob Herring <robh@kernel.org> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> Link: https://msgid.link/20230327223103.820229-1-robh@kernel.org
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688de017 |
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19-Sep-2022 |
Christophe Leroy <christophe.leroy@csgroup.eu> |
powerpc: Change CONFIG_E500 to CONFIG_PPC_E500 It will be used outside arch/powerpc, make it clear its a powerpc configuration item. And we already have CONFIG_PPC_E500MC, so that will make it more consistent. Signed-off-by: Christophe Leroy <christophe.leroy@csgroup.eu> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> Link: https://lore.kernel.org/r/e63b22083c11c4300f4a82d3123a46e5fdd54fa6.1663606876.git.christophe.leroy@csgroup.eu
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2255411d |
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11-Jul-2022 |
Christophe Leroy <christophe.leroy@csgroup.eu> |
powerpc/44x: Fix build failure with GCC 12 (unrecognized opcode: `wrteei') Building ppc40x_defconfig leads to following error CC arch/powerpc/kernel/idle.o {standard input}: Assembler messages: {standard input}:67: Error: unrecognized opcode: `wrteei' {standard input}:78: Error: unrecognized opcode: `wrteei' Add -mcpu=440 by default and alternatively 464 and 476. Once that's done, -mcpu=powerpc is only for book3s/32 now. But then comes CC arch/powerpc/kernel/io.o {standard input}: Assembler messages: {standard input}:198: Error: unrecognized opcode: `eieio' {standard input}:230: Error: unrecognized opcode: `eieio' {standard input}:245: Error: unrecognized opcode: `eieio' {standard input}:254: Error: unrecognized opcode: `eieio' {standard input}:273: Error: unrecognized opcode: `eieio' {standard input}:396: Error: unrecognized opcode: `eieio' {standard input}:404: Error: unrecognized opcode: `eieio' {standard input}:423: Error: unrecognized opcode: `eieio' {standard input}:512: Error: unrecognized opcode: `eieio' {standard input}:520: Error: unrecognized opcode: `eieio' {standard input}:539: Error: unrecognized opcode: `eieio' {standard input}:628: Error: unrecognized opcode: `eieio' {standard input}:636: Error: unrecognized opcode: `eieio' {standard input}:655: Error: unrecognized opcode: `eieio' Fix it by replacing eieio by mbar on booke. Signed-off-by: Christophe Leroy <christophe.leroy@csgroup.eu> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> Link: https://lore.kernel.org/r/b0d982e223314ed82ab959f5d4ad2c4c00bedb99.1657549153.git.christophe.leroy@csgroup.eu
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fcee9692 |
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12-May-2022 |
Miaoqian Lin <linmq006@gmail.com> |
powerpc/fsl_rio: Fix refcount leak in fsl_rio_setup of_parse_phandle() returns a node pointer with refcount incremented, we should use of_node_put() on it when not need anymore. Add missing of_node_put() to avoid refcount leak. Fixes: abc3aeae3aaa ("fsl-rio: Add two ports and rapidio message units support") Signed-off-by: Miaoqian Lin <linmq006@gmail.com> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> Link: https://lore.kernel.org/r/20220512123724.62931-1-linmq006@gmail.com
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806c0e6e |
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23-Aug-2021 |
Christophe Leroy <christophe.leroy@csgroup.eu> |
powerpc: Refactor verification of MSR_RI 40x and BOOKE don't have MSR_RI therefore all tests involving MSR_RI may be problematic on those plateforms. Create helpers to check or set MSR_RI in regs, and use them in common code. Signed-off-by: Christophe Leroy <christophe.leroy@csgroup.eu> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> Link: https://lore.kernel.org/r/c2fb93708196734f4176dda334aaa3055f213b89.1629707037.git.christophe.leroy@csgroup.eu
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59dc5bfc |
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17-Jun-2021 |
Nicholas Piggin <npiggin@gmail.com> |
powerpc/64s: avoid reloading (H)SRR registers if they are still valid When an interrupt is taken, the SRR registers are set to return to where it left off. Unless they are modified in the meantime, or the return address or MSR are modified, there is no need to reload these registers when returning from interrupt. Introduce per-CPU flags that track the validity of SRR and HSRR registers. These are cleared when returning from interrupt, when using the registers for something else (e.g., OPAL calls), when adjusting the return address or MSR of a context, and when context switching (which changes the return address and MSR). This improves the performance of interrupt returns. Signed-off-by: Nicholas Piggin <npiggin@gmail.com> [mpe: Fold in fixup patch from Nick] Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> Link: https://lore.kernel.org/r/20210617155116.2167984-5-npiggin@gmail.com
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2874c5fd |
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27-May-2019 |
Thomas Gleixner <tglx@linutronix.de> |
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152 Based on 1 normalized pattern(s): this program is free software you can redistribute it and or modify it under the terms of the gnu general public license as published by the free software foundation either version 2 of the license or at your option any later version extracted by the scancode license scanner the SPDX license identifier GPL-2.0-or-later has been chosen to replace the boilerplate/reference in 3029 file(s). Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Reviewed-by: Allison Randal <allison@lohutok.net> Cc: linux-spdx@vger.kernel.org Link: https://lkml.kernel.org/r/20190527070032.746973796@linutronix.de Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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31d1e130 |
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03-Oct-2017 |
Ioan Nicu <ioan.nicu.ext@nokia.com> |
rapidio: remove global irq spinlocks from the subsystem Locking of config and doorbell operations should be done only if the underlying hardware requires it. This patch removes the global spinlocks from the rapidio subsystem and moves them to the mport drivers (fsl_rio and tsi721), only to the necessary places. For example, local config space read and write operations (lcread/lcwrite) are atomic in all existing drivers, so there should be no need for locking, while the cread/cwrite operations which generate maintenance transactions need to be synchronized with a lock. Later, each driver could chose to use a per-port lock instead of a global one, or even more granular locking. Link: http://lkml.kernel.org/r/20170824113023.GD50104@nokia.com Signed-off-by: Ioan Nicu <ioan.nicu.ext@nokia.com> Signed-off-by: Frank Kunz <frank.kunz@nokia.com> Acked-by: Alexandre Bounine <alexandre.bounine@idt.com> Cc: Matt Porter <mporter@kernel.crashing.org> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Cc: Paul Mackerras <paulus@samba.org> Cc: Michael Ellerman <mpe@ellerman.id.au> Cc: Nicholas Piggin <npiggin@gmail.com> Cc: Randy Dunlap <rdunlap@infradead.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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b7c670d6 |
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21-Aug-2017 |
Rob Herring <robh@kernel.org> |
powerpc: Convert to using %pOF instead of full_name Now that we have a custom printf format specifier, convert users of full_name to use %pOF instead. This is preparation to remove storing of the full path string for each node. Signed-off-by: Rob Herring <robh@kernel.org> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Cc: Paul Mackerras <paulus@samba.org> Cc: Michael Ellerman <mpe@ellerman.id.au> Cc: Anatolij Gustschin <agust@denx.de> Cc: Scott Wood <oss@buserror.net> Cc: Kumar Gala <galak@kernel.crashing.org> Cc: Arnd Bergmann <arnd@arndb.de> Cc: linuxppc-dev@lists.ozlabs.org Reviewed-by: Tyrel Datwyler <tyreld@linux.vnet.ibm.com> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
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61a92f70 |
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13-Oct-2016 |
Nicholas Piggin <npiggin@gmail.com> |
powerpc: Add support for relative exception tables This halves the exception table size on 64-bit builds, and it allows build-time sorting of exception tables to work on relocated kernels. Signed-off-by: Nicholas Piggin <npiggin@gmail.com> [mpe: Minor asm fixups and bits to keep the selftests working] Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
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24bfa6a9 |
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12-Oct-2016 |
Nicholas Piggin <npiggin@gmail.com> |
powerpc: EX_TABLE macro for exception tables This macro is taken from s390, and allows more flexibility in changing exception table format. mpe: Put it in ppc_asm.h and only define one version using stringinfy_in_c(). Add some empty definitions and headers to keep the selftests happy. Signed-off-by: Nicholas Piggin <npiggin@gmail.com> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
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8a39b05f |
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16-Aug-2016 |
Paul Gortmaker <paul.gortmaker@windriver.com> |
powerpc: migrate exception table users off module.h and onto extable.h These files were only including module.h for exception table related functions. We've now separated that content out into its own file "extable.h" so now move over to that and avoid all the extra header content in module.h that we don't really need to compile these files. Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Cc: Paul Mackerras <paulus@samba.org> Cc: Michael Ellerman <mpe@ellerman.id.au> Cc: linuxppc-dev@lists.ozlabs.org Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
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380afa36 |
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04-Aug-2016 |
Dan Carpenter <dan.carpenter@oracle.com> |
powerpc/fsl_rio: fix a missing error code We should set the error code here rather than incorrectly returning 0. Otherwise static checkers complain. Link: http://lkml.kernel.org/r/20160804053525.GM775@mwanda Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Cc: Paul Mackerras <paulus@samba.org> Cc: Michael Ellerman <mpe@ellerman.id.au> Cc: Alexandre Bounine <alexandre.bounine@idt.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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adff1649 |
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02-Aug-2016 |
Alexandre Bounine <alexandre.bounine@idt.com> |
powerpc/fsl_rio: apply changes for RIO spec rev 3 - Remove check for parallel PHY - Set LP-Serial Register Map type [akpm@linux-foundation.org: fix build] [alexandre.bounine@idt.com: fix build fix] Link: http://lkml.kernel.org/r/20160802184932.2755-1-alexandre.bounine@idt.com Link: http://lkml.kernel.org/r/1469125134-16523-13-git-send-email-alexandre.bounine@idt.com Signed-off-by: Alexandre Bounine <alexandre.bounine@idt.com> Cc: Matt Porter <mporter@kernel.crashing.org> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Cc: Michael Ellerman <mpe@ellerman.id.au> Cc: Andre van Herk <andre.van.herk@prodrive-technologies.com> Cc: Barry Wood <barry.wood@idt.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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a057a52e |
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02-Aug-2016 |
Alexandre Bounine <alexandre.bounine@idt.com> |
rapidio: change inbound window size type to u64 Current definition of map_inb() mport operations callback uses u32 type to specify required inbound window (IBW) size. This is limiting factor because existing hardware - tsi721 and fsl_rio, both support IBW size up to 16GB. Changing type of size parameter to u64 to allow IBW size configurations larger than 4GB. [alexandre.bounine@idt.com: remove compiler warning about size of constant] Link: http://lkml.kernel.org/r/20160802184856.2566-1-alexandre.bounine@idt.com Link: http://lkml.kernel.org/r/1469125134-16523-11-git-send-email-alexandre.bounine@idt.com Signed-off-by: Alexandre Bounine <alexandre.bounine@idt.com> Cc: Matt Porter <mporter@kernel.crashing.org> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Cc: Michael Ellerman <mpe@ellerman.id.au> Cc: Andre van Herk <andre.van.herk@prodrive-technologies.com> Cc: Barry Wood <barry.wood@idt.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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9a0b0627 |
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22-Mar-2016 |
Alexandre Bounine <alexandre.bounine@idt.com> |
rapidio: add global inbound port write interfaces Add new Port Write handler registration interfaces that attach PW handlers to local mport device objects. This is different from old interface that attaches PW callback to individual RapidIO device. The new interfaces are intended for use for common event handling (e.g. hot-plug notifications) while the old interface is available for individual device drivers. This patch is based on patch proposed by Andre van Herk but preserves existing per-device interface and adds lock protection for list handling. Signed-off-by: Alexandre Bounine <alexandre.bounine@idt.com> Cc: Matt Porter <mporter@kernel.crashing.org> Cc: Aurelien Jacquiot <a-jacquiot@ti.com> Cc: Andre van Herk <andre.van.herk@prodrive-technologies.com> Cc: Stephen Rothwell <sfr@canb.auug.org.au> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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dd64f4fe |
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22-Mar-2016 |
Alexandre Bounine <alexandre.bounine@idt.com> |
powerpc/fsl_rio: changes to mport registration Change mport object initialization/registration sequence to match reworked version of rio_register_mport() in the core code. Signed-off-by: Alexandre Bounine <alexandre.bounine@idt.com> Cc: Matt Porter <mporter@kernel.crashing.org> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Cc: Aurelien Jacquiot <a-jacquiot@ti.com> Cc: Andre van Herk <andre.van.herk@prodrive-technologies.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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e6a546fd |
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05-Aug-2014 |
Martijn de Gouw <martijn.de.gouw@prodrive-technologies.com> |
powerpc/fsl-rio: add support for mapping inbound windows Add support for mapping and unmapping of inbound rapidio windows. This allows for drivers to open up a part of local memory on the rapidio network. Also applications can use this and tranfer blocks of data over the network. Signed-off-by: Martijn de Gouw <martijn.de.gouw@prodrive-technologies.com> [scottwood@freescale.com: updated commit message based on review] Signed-off-by: Scott Wood <scottwood@freescale.com>
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4ad7fb26 |
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20-Oct-2014 |
Wolfram Sang <wsa@kernel.org> |
powerpc: sysdev: drop owner assignment from platform_drivers A platform_driver does not need to set an owner, it will be populated by the driver core. Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
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a614db9a |
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28-Apr-2014 |
Scott Wood <scottwood@freescale.com> |
powerpc/fsl-rio: Fix fsl_rio_setup error paths and use-after-unmap Several of the error paths from fsl_rio_setup are missing error messages. Worse, fsl_rio_setup initializes several global pointers and does not NULL them out after freeing/unmapping on error. This caused fsl_rio_mcheck_exception() to crash when accessing rio_regs_win which was non-NULL but had been unmapped. Signed-off-by: Scott Wood <scottwood@freescale.com> Cc: Liu Gang <Gang.Liu@freescale.com> --- Liu Gang, are you sure all of these error conditions are fatal? Why does the rio driver fail if rmu is not present (e.g. on t4240)?
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2aaf308b |
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07-Apr-2014 |
Alexandre Bounine <alexandre.bounine@idt.com> |
rapidio: rework device hierarchy and introduce mport class of devices This patch removes an artificial RapidIO bus root device and establishes actual device hierarchy by providing reference to real parent devices. It also introduces device class for RapidIO controller devices (on-chip or an eternal bridge, known as "mport"). Existing implementation was sufficient for SoC-based platforms that have a single RapidIO controller. With introduction of devices using multiple RapidIO controllers and PCIe-to-RapidIO bridges the old scheme is very limiting or does not work at all. The implemented changes allow to properly reference platform's local RapidIO mport devices and provide device details needed for upper layers. This change to RapidIO device hierarchy does not break any known existing kernel or user space interfaces. Signed-off-by: Alexandre Bounine <alexandre.bounine@idt.com> Cc: Matt Porter <mporter@kernel.crashing.org> Cc: Li Yang <leoli@freescale.com> Cc: Kumar Gala <galak@kernel.crashing.org> Cc: Andre van Herk <andre.van.herk@prodrive-technologies.com> Cc: Stef van Os <stef.van.os@prodrive-technologies.com> Cc: Jerry Jacobs <jerry.jacobs@prodrive-technologies.com> Cc: Arno Tiemersma <arno.tiemersma@prodrive-technologies.com> Cc: Rob Landley <rob@landley.net> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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26a2056e |
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26-Sep-2013 |
Rob Herring <rob.herring@calxeda.com> |
powerpc: add explicit OF includes When removing prom.h include by of.h, several OF headers will no longer be implicitly included. Add explicit includes of of_*.h as needed. Signed-off-by: Rob Herring <rob.herring@calxeda.com> Acked-by: Grant Likely <grant.likely@linaro.org> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Cc: Paul Mackerras <paulus@samba.org> Cc: Anatolij Gustschin <agust@denx.de> Cc: Kumar Gala <galak@kernel.crashing.org> Cc: Olof Johansson <olof@lixom.net> Cc: linuxppc-dev@lists.ozlabs.org
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cad5cef6 |
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21-Dec-2012 |
Greg Kroah-Hartman <gregkh@linuxfoundation.org> |
POWERPC: drivers: remove __dev* attributes. CONFIG_HOTPLUG is going away as an option. As a result, the __dev* markings need to be removed. This change removes the use of __devinit, __devexit_p, __devinitdata, __devinitconst, and __devexit from these drivers. Based on patches originally written by Bill Pemberton, but redone by me in order to handle some of the coding style issues better, by hand. Cc: Bill Pemberton <wfp5p@virginia.edu> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Cc: Paul Mackerras <paulus@samba.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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#
b6c46dcf |
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05-Mar-2012 |
Liu Gang <Gang.Liu@freescale.com> |
powerpc/srio: Fix the relocation errors when building with 64bit For the file "arch/powerpc/sysdev/fsl_rio.c", there will be some relocation errors while using the corenet64_smp_defconfig: WARNING: modpost: Found 6 section mismatch(es). To see full details build your kernel with: 'make CONFIG_DEBUG_SECTION_MISMATCH=y' GEN .version CHK include/generated/compile.h UPD include/generated/compile.h CC init/version.o LD init/built-in.o LD .tmp_vmlinux1 arch/powerpc/sysdev/built-in.o:(__ex_table+0x0): relocation truncated to fit: R_PPC64_ADDR16 against `.text'+3208 arch/powerpc/sysdev/built-in.o:(__ex_table+0x2): relocation truncated to fit: R_PPC64_ADDR16 against `.fixup' arch/powerpc/sysdev/built-in.o:(__ex_table+0x4): relocation truncated to fit: R_PPC64_ADDR16 against `.text'+3230 arch/powerpc/sysdev/built-in.o:(__ex_table+0x6): relocation truncated to fit: R_PPC64_ADDR16 against `.fixup'+c arch/powerpc/sysdev/built-in.o:(__ex_table+0x8): relocation truncated to fit: R_PPC64_ADDR16 against `.text'+3250 arch/powerpc/sysdev/built-in.o:(__ex_table+0xa): relocation truncated to fit: R_PPC64_ADDR16 against `.fixup'+18 Rewrote the corresponding code with the support of 64bit building. Signed-off-by: Liu Gang <Gang.Liu@freescale.com> Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
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#
abc3aeae |
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12-Nov-2011 |
Liu Gang <Gang.Liu@freescale.com> |
fsl-rio: Add two ports and rapidio message units support Usually, freescale rapidio endpoint can support one or two 1x or 4X LP-Serial link interfaces, and rapidio message transactions can be implemented by two message units. This adds the support of two rapidio ports and initializes message unit 0 and message unit 1. And these ports and message units can work simultaneously. Signed-off-by: Li Yang <leoli@freescale.com> Signed-off-by: Jin Qing <b24347@freescale.com> Signed-off-by: Liu Gang <Gang.Liu@freescale.com> Acked-by: Alexandre Bounine <alexandre.bounine@idt.com> Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
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#
6ec4bedb |
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12-Nov-2011 |
Liu Gang <Gang.Liu@freescale.com> |
fsl-rio: Split rio driver into two parts, RapidIO endpoint and message unit The Freescale PowerPC RapidIO controller consists of a RapidIO endpoint and a RapidIO message unit(RMU). Or use RapidIO message manager(RMan) to replace the RMU in DPAA architecture. Therefore, we should split the code into two function modules according to the hardware architecture. Add new struct for RMU module, and new initialization function to set up RMU module. This policy is very conducive to adding new module like RMan, or adding multi-ports or message units support. Signed-off-by: Lian Minghuan <Minghuan.Lian@freescale.com> Signed-off-by: Liu Gang <Gang.Liu@freescale.com> Acked-by: Alexandre Bounine <alexandre.bounine@idt.com> Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
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#
e0ce42e1 |
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11-Nov-2011 |
Liu Gang <Gang.Liu@freescale.com> |
fsl-rio: fix compile error The "#include <linux/module.h>" was replaced by "#include <linux/export.h>" in the patch "powerpc: various straight conversions from module.h --> export.h". This will cause the following compile problem: arch/powerpc/sysdev/fsl_rio.c: In function 'fsl_rio_mcheck_exception': arch/powerpc/sysdev/fsl_rio.c:296: error: implicit declaration of function 'search_exception_tables'. The file fsl_rio.c needs the declaration of function "search_exception_tables" in the header file "linux/module.h". Signed-off-by: Liu Gang <Gang.Liu@freescale.com> Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
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#
e80dd9a7 |
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02-Nov-2011 |
Liu Gang <Gang.Liu@freescale.com> |
arch/powerpc/sysdev/fsl_rio.c: release rapidio port I/O region resource if port failed to initialize The "struct rio_mport" contains a member of master port I/O memory resource structure "struct resource iores". This resource will be read from device tree and be used for rapidio R/W transaction memory space. Rapidio requests the port I/O memory resource under the root resource "iomem_resource". struct rio_mport *port; port = kzalloc(sizeof(struct rio_mport), GFP_KERNEL); request_resource(&iomem_resource, &port->iores); When port failed to initialize, allocated "rio_mport" structure memory will be freed, and the port I/O memory resource structure pointer "&port->iores" will be invalid. If other requests resource under "iomem_resource", "&port->iores" node may be operated in the child resources list and this will cause the system to crash. So the requested port I/O memory resource should be released before freeing allocated "rio_mport" structure. Signed-off-by: Liu Gang <Gang.Liu@freescale.com> Acked-by: Alexandre Bounine <alexandre.bounine@idt.com> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Cc: Paul Mackerras <paulus@samba.org> Cc: Grant Likely <grant.likely@secretlab.ca> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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#
4b16f8e2 |
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22-Jul-2011 |
Paul Gortmaker <paul.gortmaker@windriver.com> |
powerpc: various straight conversions from module.h --> export.h All these files were including module.h just for the basic EXPORT_SYMBOL infrastructure. We can shift them off to the export.h header which is a way smaller footprint and thus realize some compile time gains. Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
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#
671ee7f0 |
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25-Aug-2011 |
Liu Gang-B34182 <B34182@freescale.com> |
arch/powerpc/sysdev/fsl_rio.c: correct IECSR register clear value This bug causes the IECSR register clear failure. In this case, the RETE (retry error threshold exceeded) interrupt will be generated and cannot be cleared. So the related ISR may be called persistently. The RETE bit in IECSR is cleared by writing a 1 to it. Signed-off-by: Liu Gang <Gang.Liu@freescale.com> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Cc: Kumar Gala <galak@kernel.crashing.org> Cc: <stable@kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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#
82a9a480 |
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16-Jun-2011 |
Scott Wood <scottwood@freescale.com> |
powerpc/e500: fix breakage with fsl_rio_mcheck_exception The wrong MCSR bit was being used on e500mc. MCSR_BUS_RBERR only exists on e500v1/v2. Use MCSR_LD on e500mc, and remove all MCSR checking in fsl_rio_mcheck_exception as we now no longer call that function if the appropriate bit in MCSR is not set. If RIO support was enabled at compile-time, but was never probed, just return from fsl_rio_mcheck_exception rather than dereference a NULL pointer. TODO: There is still a remaining, though comparitively minor, issue in that this recovery mechanism will falsely engage if there's an unrelated MCSR_LD event at the same time as a RIO error. Signed-off-by: Scott Wood <scottwood@freescale.com> Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
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#
28f65c11 |
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09-Jun-2011 |
Joe Perches <joe@perches.com> |
treewide: Convert uses of struct resource to resource_size(ptr) Several fixes as well where the +1 was missing. Done via coccinelle scripts like: @@ struct resource *ptr; @@ - ptr->end - ptr->start + 1 + resource_size(ptr) and some grep and typing. Mostly uncompiled, no cross-compilers. Signed-off-by: Joe Perches <joe@perches.com> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
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#
6ff31453 |
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17-Nov-2010 |
Shaohui Xie <b21989@freescale.com> |
powerpc/fsl_rio: Error interrupt handler for sRIO on MPC85xx The sRIO controller reports errors to the core with one signal, it uses register EPWISR to provides the core quick access to where the error occurred. The EPWISR indicates that there are 4 interrupts sources, port1, port2, message unit and port write receive, but the sRIO driver does not support port2 for now, still the handler takes care of port2. Currently the handler only clear error status without any recovery. Signed-off-by: Shaohui Xie <b21989@freescale.com> Cc: Li Yang <leoli@freescale.com> Cc: Kumar Gala <kumar.gala@freescale.com> Cc: Roy Zang <tie-fei.zang@freescale.com> Cc: Alexandre Bounine <alexandre.bounine@idt.com> Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
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#
cce1f106 |
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17-Nov-2010 |
Shaohui Xie <b21989@freescale.com> |
powerpc/fsl_rio: move machine_check handler Add support for machine_check support into machine_check_e500 and machine_check_e500mc. Signed-off-by: Shaohui Xie <b21989@freescale.com> Cc: Li Yang <leoli@freescale.com> Cc: Roy Zang <tie-fei.zang@freescale.com> Cc: Alexandre Bounine <alexandre.bounine@idt.com> Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
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#
59f99965 |
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14-Apr-2011 |
Alexandre Bounine <alexandre.bounine@idt.com> |
RapidIO/mpc85xx: fix possible mport registration problems Fix a possible problem with mport registration left non-cleared after fsl_rio_setup() exits on link error. Abort mport initialization if registration failed. This patch is applicable to 2.6.39-rc1 only. The problem does not exist for earlier versions. Signed-off-by: Alexandre Bounine <alexandre.bounine@idt.com> Cc: Kumar Gala <galak@kernel.crashing.org> Cc: Matt Porter <mporter@kernel.crashing.org> Cc: Li Yang <leoli@freescale.com> Cc: Thomas Moll <thomas.moll@sysgo.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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#
c1256ebe |
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23-Mar-2011 |
Alexandre Bounine <alexandre.bounine@idt.com> |
rapidio: remove mport resource reservation from common RIO code Removes resource reservation from the common sybsystem initialization code and make it part of mport driver initialization. This resolves conflict with resource reservation by device specific mport drivers. Signed-off-by: Alexandre Bounine <alexandre.bounine@idt.com> Cc: Kumar Gala <galak@kernel.crashing.org> Cc: Matt Porter <mporter@kernel.crashing.org> Cc: Li Yang <leoli@freescale.com> Cc: Thomas Moll <thomas.moll@sysgo.com> Cc: Micha Nelissen <micha@neli.hopto.org> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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#
569fccb6 |
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23-Mar-2011 |
Alexandre Bounine <alexandre.bounine@idt.com> |
rapidio: modify mport ID assignment Changes mport ID and host destination ID assignment to implement unified method common to all mport drivers. Makes "riohdid=" kernel command line parameter common for all architectures with support for more that one host destination ID assignment. Signed-off-by: Alexandre Bounine <alexandre.bounine@idt.com> Cc: Kumar Gala <galak@kernel.crashing.org> Cc: Matt Porter <mporter@kernel.crashing.org> Cc: Li Yang <leoli@freescale.com> Cc: Thomas Moll <thomas.moll@sysgo.com> Cc: Micha Nelissen <micha@neli.hopto.org> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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#
2f809985 |
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23-Mar-2011 |
Alexandre Bounine <alexandre.bounine@idt.com> |
rapidio: modify subsystem and driver initialization sequence Subsystem initialization sequence modified to support presence of multiple RapidIO controllers in the system. The new sequence is compatible with initialization of PCI devices. Signed-off-by: Alexandre Bounine <alexandre.bounine@idt.com> Cc: Kumar Gala <galak@kernel.crashing.org> Cc: Matt Porter <mporter@kernel.crashing.org> Cc: Li Yang <leoli@freescale.com> Cc: Thomas Moll <thomas.moll@sysgo.com> Cc: Micha Nelissen <micha@neli.hopto.org> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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#
f8f06269 |
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23-Mar-2011 |
Alexandre Bounine <alexandre.bounine@idt.com> |
rapidio: add architecture specific callbacks This set of patches eliminates RapidIO dependency on PowerPC architecture and makes it available to other architectures (x86 and MIPS). It also enables support of new platform independent RapidIO controllers such as PCI-to-SRIO and PCI Express-to-SRIO. This patch: Extend number of mport callback functions to eliminate direct linking of architecture specific mport operations. Signed-off-by: Alexandre Bounine <alexandre.bounine@idt.com> Cc: Kumar Gala <galak@kernel.crashing.org> Cc: Matt Porter <mporter@kernel.crashing.org> Cc: Li Yang <leoli@freescale.com> Cc: Thomas Moll <thomas.moll@sysgo.com> Cc: Micha Nelissen <micha@neli.hopto.org> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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#
00006124 |
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22-Feb-2011 |
Grant Likely <grant.likely@secretlab.ca> |
dt/powerpc: Eliminate users of of_platform_{,un}register_driver Get rid of old users of of_platform_driver in arch/powerpc. Most of_platform_driver users can be converted to use the platform_bus directly. Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
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#
12a4dc43 |
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12-Jan-2011 |
Thomas Taranowski <tom@baringforge.com> |
rapidio: fix hang on RapidIO doorbell queue full condition In fsl_rio_dbell_handler() the code currently simply acknowledges the QFI queue full interrupt, but does nothing to resolve the queue full condition. Instead, it jumps to the end of the isr. When a queue full condition occurs, the isr is then re-entered immediately and continually, forever. The fix is to just fall through and read out current doorbell entries. Signed-off-by: Thomas Taranowski <tom@baringforge.com> Cc: Alexandre Bounine <alexandre.bounine@idt.com> Cc: Kumar Gala <galak@kernel.crashing.org> Cc: Matt Porter <mporter@kernel.crashing.org> Cc: Li Yang <leoli@freescale.com> Cc: Thomas Moll <thomas.moll@sysgo.com> Cc: Micha Nelissen <micha@neli.hopto.org> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Cc: Grant Likely <grant.likely@secretlab.ca> Cc: <stable@kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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#
b5fb0cc7 |
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03-Nov-2010 |
Shaohui Xie <b21989@freescale.com> |
powerpc/fsl_rio: Fix non-standard HID1 register access Moved setting of RFXE bit so we get machine checks on RIO errors into cpu_setup so that the RIO code isn't core specific. Signed-off-by: Shaohui Xie <b21989@freescale.com> Cc: Li Yang <leoli@freescale.com> Cc: Roy Zang <tie-fei.zang@freescale.com> Cc: Alexandre Bounine <alexandre.bounine@idt.com> Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
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#
af84ca38 |
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27-Oct-2010 |
Alexandre Bounine <alexandre.bounine@idt.com> |
rapidio: add handling of redundant routes Detects RIO link to the already enumerated device and properly sets links between device objects. Changes to the enumeration/discovery logic: 1. Use Master Enable bit to signal end of the enumeration - agents may start their discovery process as soon as they see this bit set (Component Tag register was used before for this purpose). 2. Enumerator sets Component Tag (!= 0) immediately during device setup. This allows to identify the device if the redundant route exists in a RIO system. Signed-off-by: Alexandre Bounine <alexandre.bounine@idt.com> Cc: Thomas Moll <thomas.moll@sysgo.com> Cc: Matt Porter <mporter@kernel.crashing.org> Cc: Li Yang <leoli@freescale.com> Cc: Kumar Gala <galak@kernel.crashing.org> Cc: Micha Nelissen <micha@neli.hopto.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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#
93e2cbd2 |
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27-Oct-2010 |
Alexandre Bounine <alexandre.bounine@idt.com> |
rapidio:powerpc/85xx: modify RIO port-write interrupt handler - Rearrange RIO port-write interrupt handling to perform message buffering as soon as possible. - Modify to disable port-write controller when clearing Transaction Error (TE) bit. Signed-off-by: Alexandre Bounine <alexandre.bounine@idt.com> Cc: Thomas Moll <thomas.moll@sysgo.com> Cc: Matt Porter <mporter@kernel.crashing.org> Cc: Li Yang <leoli@freescale.com> Cc: Kumar Gala <galak@kernel.crashing.org> Cc: Micha Nelissen <micha@neli.hopto.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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#
abd12fe4 |
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13-Oct-2010 |
Shaohui Xie <b21989@freescale.com> |
fsl_rio: Add comments for sRIO registers. Add some comments to make sRIO registers map better readable. Signed-off-by: Shaohui Xie <b21989@freescale.com> Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
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#
ff33f182 |
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18-Jun-2010 |
Li Yang <leoyang.li@nxp.com> |
fsl_rio: fix compile errors Fixes the following compile problem on E500 platforms: arch/powerpc/sysdev/fsl_rio.c: In function 'fsl_rio_mcheck_exception': arch/powerpc/sysdev/fsl_rio.c:248: error: 'MCSR_MASK' undeclared (first use in this function) Also fixes the compile problem on non-E500 platforms. Signed-off-by: Li Yang <leoli@freescale.com> Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
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#
2dc11581 |
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06-Aug-2010 |
Grant Likely <grant.likely@secretlab.ca> |
of/device: Replace struct of_device with struct platform_device of_device is just an alias for platform_device, so remove it entirely. Also replace to_of_device() with to_platform_device() and update comment blocks. This patch was initially generated from the following semantic patch, and then edited by hand to pick up the bits that coccinelle didn't catch. @@ @@ -struct of_device +struct platform_device Signed-off-by: Grant Likely <grant.likely@secretlab.ca> Reviewed-by: David S. Miller <davem@davemloft.net>
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#
a454dc50 |
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22-Jul-2010 |
Grant Likely <grant.likely@secretlab.ca> |
powerpc: remove references to of_device and to_of_device of_device is just a #define alias to platform_device. This patch replaces all references to it with platform_device. Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
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#
45fdf00d |
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28-May-2010 |
Alexandre Bounine <alexandre.bounine@idt.com> |
of/powerpc: fix 85xx RapidIO device node pointer Fixes bug introduced by commit 61c7a080a5a061c976988fd4b844dfb468dda255 (of: Always use 'struct device.of_node' to get device node pointer) Signed-off-by: Alexandre Bounine <alexandre.bounine@idt.com> Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
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#
bd4fb654 |
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26-May-2010 |
Thomas Moll <thomas.moll@sysgo.com> |
rapidio: fix maintenance access to higher memory areas Fix the maintenance access functions to farend RapidIO devices. 1. Fixed shift of the given offset, to open the maintenance window 2. Mask offset to limit access to the opened maintenance window 3. Added extended destid part to rowtear register, required for 16bit mode This method is matching maintenance transactions generation described by Freescale in the appnote AN2932. With this modification full access to a 16MB maintenance window is possible, this patch is required for IDT cps switches. For easier handling of the access routines, the access was limited to aligned memory regions. This should be no problem because all registers are 32bit wide. Signed-off-by: Thomas Moll <thomas.moll@sysgo.com> Tested-by: Alexandre Bounine <alexandre.bounine@idt.com> Cc: Matt Porter <mporter@kernel.crashing.org> Cc: Li Yang <leoli@freescale.com> Cc: Kumar Gala <galak@kernel.crashing.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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#
a52c8f52 |
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26-May-2010 |
Alexandre Bounine <alexandre.bounine@idt.com> |
rapidio, powerpc/85xx: Add MChk handler for SRIO port Add Machine Check exception handling into RapidIO port driver for Freescale SoCs (MPC85xx). Signed-off-by: Alexandre Bounine <alexandre.bounine@idt.com> Tested-by: Thomas Moll <thomas.moll@sysgo.com> Cc: Matt Porter <mporter@kernel.crashing.org> Cc: Li Yang <leoli@freescale.com> Cc: Kumar Gala <galak@kernel.crashing.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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#
5b2074ae |
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26-May-2010 |
Alexandre Bounine <alexandre.bounine@idt.com> |
rapidio, powerpc/85xx: add Port-Write message handler for SRIO port Add RapidIO Port-Write message handler for Freescale SoCs with RapidIO port. Signed-off-by: Alexandre Bounine <alexandre.bounine@idt.com> Tested-by: Thomas Moll <thomas.moll@sysgo.com> Cc: Matt Porter <mporter@kernel.crashing.org> Cc: Li Yang <leoli@freescale.com> Cc: Kumar Gala <galak@kernel.crashing.org> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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#
e5cabeb3 |
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26-May-2010 |
Alexandre Bounine <alexandre.bounine@idt.com> |
rapidio: add Port-Write handling for EM Add RapidIO Port-Write message handling in the context of Error Management Extensions Specification Rev.1.3. Signed-off-by: Alexandre Bounine <alexandre.bounine@idt.com> Tested-by: Thomas Moll <thomas.moll@sysgo.com> Cc: Matt Porter <mporter@kernel.crashing.org> Cc: Li Yang <leoli@freescale.com> Cc: Kumar Gala <galak@kernel.crashing.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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#
4018294b |
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13-Apr-2010 |
Grant Likely <grant.likely@secretlab.ca> |
of: Remove duplicate fields from of_platform_driver .name, .match_table and .owner are duplicated in both of_platform_driver and device_driver. This patch is a removes the extra copies from struct of_platform_driver and converts all users to the device_driver members. This patch is a pretty mechanical change. The usage model doesn't change and if any drivers have been missed, or if anything has been fixed up incorrectly, then it will fail with a compile time error, and the fixup will be trivial. This patch looks big and scary because it touches so many files, but it should be pretty safe. Signed-off-by: Grant Likely <grant.likely@secretlab.ca> Acked-by: Sean MacLennan <smaclennan@pikatech.com>
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#
61c7a080 |
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13-Apr-2010 |
Grant Likely <grant.likely@secretlab.ca> |
of: Always use 'struct device.of_node' to get device node pointer. The following structure elements duplicate the information in 'struct device.of_node' and so are being eliminated. This patch makes all readers of these elements use device.of_node instead. (struct of_device *)->node (struct dev_archdata *)->prom_node (sparc) (struct dev_archdata *)->of_node (powerpc & microblaze) Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
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#
5a0e3ad6 |
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24-Mar-2010 |
Tejun Heo <tj@kernel.org> |
include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h percpu.h is included by sched.h and module.h and thus ends up being included when building most .c files. percpu.h includes slab.h which in turn includes gfp.h making everything defined by the two files universally available and complicating inclusion dependencies. percpu.h -> slab.h dependency is about to be removed. Prepare for this change by updating users of gfp and slab facilities include those headers directly instead of assuming availability. As this conversion needs to touch large number of source files, the following script is used as the basis of conversion. http://userweb.kernel.org/~tj/misc/slabh-sweep.py The script does the followings. * Scan files for gfp and slab usages and update includes such that only the necessary includes are there. ie. if only gfp is used, gfp.h, if slab is used, slab.h. * When the script inserts a new include, it looks at the include blocks and try to put the new include such that its order conforms to its surrounding. It's put in the include block which contains core kernel includes, in the same order that the rest are ordered - alphabetical, Christmas tree, rev-Xmas-tree or at the end if there doesn't seem to be any matching order. * If the script can't find a place to put a new include (mostly because the file doesn't have fitting include block), it prints out an error message indicating which .h file needs to be added to the file. The conversion was done in the following steps. 1. The initial automatic conversion of all .c files updated slightly over 4000 files, deleting around 700 includes and adding ~480 gfp.h and ~3000 slab.h inclusions. The script emitted errors for ~400 files. 2. Each error was manually checked. Some didn't need the inclusion, some needed manual addition while adding it to implementation .h or embedding .c file was more appropriate for others. This step added inclusions to around 150 files. 3. The script was run again and the output was compared to the edits from #2 to make sure no file was left behind. 4. Several build tests were done and a couple of problems were fixed. e.g. lib/decompress_*.c used malloc/free() wrappers around slab APIs requiring slab.h to be added manually. 5. The script was run on all .h files but without automatically editing them as sprinkling gfp.h and slab.h inclusions around .h files could easily lead to inclusion dependency hell. Most gfp.h inclusion directives were ignored as stuff from gfp.h was usually wildly available and often used in preprocessor macros. Each slab.h inclusion directive was examined and added manually as necessary. 6. percpu.h was updated not to include slab.h. 7. Build test were done on the following configurations and failures were fixed. CONFIG_GCOV_KERNEL was turned off for all tests (as my distributed build env didn't work with gcov compiles) and a few more options had to be turned off depending on archs to make things build (like ipr on powerpc/64 which failed due to missing writeq). * x86 and x86_64 UP and SMP allmodconfig and a custom test config. * powerpc and powerpc64 SMP allmodconfig * sparc and sparc64 SMP allmodconfig * ia64 SMP allmodconfig * s390 SMP allmodconfig * alpha SMP allmodconfig * um on x86_64 SMP allmodconfig 8. percpu.h modifications were reverted so that it could be applied as a separate patch and serve as bisection point. Given the fact that I had only a couple of failures from tests on step 6, I'm fairly confident about the coverage of this conversion patch. If there is a breakage, it's likely to be something in one of the arch headers which should be easily discoverable easily on most builds of the specific arch. Signed-off-by: Tejun Heo <tj@kernel.org> Guess-its-ok-by: Christoph Lameter <cl@linux-foundation.org> Cc: Ingo Molnar <mingo@redhat.com> Cc: Lee Schermerhorn <Lee.Schermerhorn@hp.com>
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6c75933c |
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07-Aug-2009 |
Julia Lawall <julia@diku.dk> |
powerpc/fsl_rio: Add kmalloc NULL tests Check that the result of kmalloc/kzalloc is not NULL before dereferencing it. The semantic match that finds this problem is as follows: (http://coccinelle.lip6.fr/) // <smpl> @@ expression *x; identifier f; constant char *C; @@ x = \(kmalloc\|kcalloc\|kzalloc\)(...); ... when != x == NULL when != x != NULL when != (x || ...) ( kfree(x) | f(...,C,...,x,...) | *f(...,x,...) | *x->f ) // </smpl> Signed-off-by: Julia Lawall <julia@diku.dk> Signed-off-by: Kumar Gala <galak@kernel.crashing.org> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
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d258e64e |
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28-Jun-2009 |
Joe Perches <joe@perches.com> |
powerpc: Remove unnecessary semicolons Signed-off-by: Joe Perches <joe@perches.com> Acked-by: Geoff Levand <geoffrey.levand@am.sony.com> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
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186e74b9 |
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12-May-2009 |
Li Yang <leoyang.li@nxp.com> |
powerpc/fsl_rio: use LAW address from device tree Instead of fixed address in old code. Signed-off-by: Li Yang <leoli@freescale.com> Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
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fc274a15 |
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13-May-2009 |
Kumar Gala <galak@kernel.crashing.org> |
powerpc/fsl_rio: Fix compile warnings We we build with resource_size_t as a 64-bit quantity we get: arch/powerpc/sysdev/fsl_rio.c: In function 'fsl_rio_setup': arch/powerpc/sysdev/fsl_rio.c:1029: warning: format '%08x' expects type 'unsigned int', but argument 4 has type 'resource_size_t' arch/powerpc/sysdev/fsl_rio.c:1029: warning: format '%08x' expects type 'unsigned int', but argument 5 has type 'resource_size_t' Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
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0dbbbf1a |
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18-Apr-2009 |
Anton Vorontsov <avorontsov@ru.mvista.com> |
fsl_rio: Pass the proper device to dma mapping routines The driver should pass a device that specifies internal DMA ops, but currently NULL pointer is passed, therefore following bug appears during boot up: ------------[ cut here ]------------ Kernel BUG at c0018a7c [verbose debug info unavailable] Oops: Exception in kernel mode, sig: 5 [#1] [...] NIP [c0018a7c] fsl_rio_doorbell_init+0x34/0x60 LR [c0018a70] fsl_rio_doorbell_init+0x28/0x60 Call Trace: [ef82bda0] [c0018a70] fsl_rio_doorbell_init+0x28/0x60 (unreliable) [ef82bdc0] [c0019160] fsl_rio_setup+0x6b8/0x84c [ef82be20] [c02d28ac] fsl_of_rio_rpn_probe+0x30/0x50 [ef82be40] [c0234f20] of_platform_device_probe+0x5c/0x84 [...] ---[ end trace 561bb236c800851f ]--- This patch fixes the issue. Signed-off-by: Anton Vorontsov <avorontsov@ru.mvista.com> Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
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9941d945 |
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30-Apr-2008 |
Randy Dunlap <randy.dunlap@oracle.com> |
[RAPIDIO] fix current kernel-doc notation Fix current (-git16) missing docbook/kernel-doc notation in RapidIO files. Warning(linux-2.6.25-git16//include/linux/rio.h:187): No description found for parameter 'sys_size' Warning(linux-2.6.25-git16//include/linux/rio.h:187): No description found for parameter 'phy_type' Warning(linux-2.6.25-git16//arch/powerpc/sysdev/fsl_rio.c:188): No description found for parameter 'mport' Warning(linux-2.6.25-git16//arch/powerpc/sysdev/fsl_rio.c:224): No description found for parameter 'mport' Warning(linux-2.6.25-git16//arch/powerpc/sysdev/fsl_rio.c:245): No description found for parameter 'mport' Warning(linux-2.6.25-git16//arch/powerpc/sysdev/fsl_rio.c:270): No description found for parameter 'mport' Warning(linux-2.6.25-git16//arch/powerpc/sysdev/fsl_rio.c:311): No description found for parameter 'mport' Warning(linux-2.6.25-git16//arch/powerpc/sysdev/fsl_rio.c:996): No description found for parameter 'dev' Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com> Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
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6c39103c |
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18-Apr-2008 |
Zhang Wei <wei.zhang@freescale.com> |
[RAPIDIO] Change RapidIO doorbell source and target ID field to 16-bit Change RapidIO doorbell source and target ID field to 16-bit for support large system size, which max rio devid is 65535. Signed-off-by: Zhang Wei <wei.zhang@freescale.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Paul Mackerras <paulus@samba.org>
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7f620df8 |
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18-Apr-2008 |
Zhang Wei <wei.zhang@freescale.com> |
[RAPIDIO] Add RapidIO connection info print out and re-training for broken connections Signed-off-by: Zhang Wei <wei.zhang@freescale.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Paul Mackerras <paulus@samba.org>
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61b26917 |
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18-Apr-2008 |
Zhang Wei <wei.zhang@freescale.com> |
[RAPIDIO] Add serial RapidIO controller support, which includes MPC8548, MPC8641 Signed-off-by: Zhang Wei <wei.zhang@freescale.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Paul Mackerras <paulus@samba.org>
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e0423236 |
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18-Apr-2008 |
Zhang Wei <wei.zhang@freescale.com> |
[RAPIDIO] Auto-probe the RapidIO system size The RapidIO system size will auto probe in RIO setup. The route table and rionet_active in rionet.c are changed to be allocated dynamically according to the size of the system. Signed-off-by: Zhang Wei <wei.zhang@freescale.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Paul Mackerras <paulus@samba.org>
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cc2bb696 |
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18-Apr-2008 |
Zhang Wei <wei.zhang@freescale.com> |
[RAPIDIO] Add OF-tree support to RapidIO controller driver This initializes the RapidIO controller driver using addresses and interrupt numbers obtained from the firmware device tree, rather than using hardcoded constants. Signed-off-by: Zhang Wei <wei.zhang@freescale.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Paul Mackerras <paulus@samba.org>
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ad1e9380 |
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18-Apr-2008 |
Zhang Wei <wei.zhang@freescale.com> |
[RAPIDIO] Add RapidIO multi mport support The original RapidIO driver suppose there is only one mpc85xx RIO controller in system. So, some data structures are defined as mpc85xx_rio global, such as 'regs_win', 'dbell_ring', 'msg_tx_ring'. Now, I changed them to mport's private members. And you can define multi RIO OF-nodes in dts file for multi RapidIO controller in one processor, such as PCI/PCI-Ex host controllers in Freescale's silicon. And the mport operation function declaration should be changed to know which RapidIO controller is target. Signed-off-by: Zhang Wei <wei.zhang@freescale.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Paul Mackerras <paulus@samba.org>
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d02443a6 |
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18-Apr-2008 |
Zhang Wei <wei.zhang@freescale.com> |
[RAPIDIO] Change RIO function mpc85xx_ to fsl_ The driver is suitable for the Freescale MPC8641 processor as well as 85xx processors, so this changes the mpc85xx prefix to fsl. Signed-off-by: Zhang Wei <wei.zhang@freescale.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Paul Mackerras <paulus@samba.org>
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de3c8d41 |
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23-Jan-2008 |
Kumar Gala <galak@kernel.crashing.org> |
[POWERPC] Move RapidIO support code from arch/ppc Do just enough to move the RapidIO support code for 85xx over from arch/ppc into arch/powerpc and make it still build. Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
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