linux/arch/powerpc/sysdev
Benjamin Herrenschmidt cda13552d5 powerpc/scom: Improve debugfs interface
The current debugfs interface to scom is essentially unused
and racy. It uses two different files "address" and "data"
to perform accesses which is at best impractical for anything
but manual use by a developer.

This replaces it with an "access" file which represent the entire
scom address space which can be lseek/read/writen too.

This file only supports accesses that are 8 bytes aligned and
multiple of 8 bytes in size. The offset is logically the SCOM
address multiplied by 8.

Since nothing in userspace exploits that file at the moment, the ABI
change is a no-brainer.

Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2013-11-06 14:13:50 +11:00
..
ge Merge branch 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc 2012-03-21 18:55:10 -07:00
qe_lib powerpc/qe: Fix Kconfig enablement of QE_USB support 2013-03-15 11:14:15 -05:00
xics powerpc/powernv: Fix endian issues in OPAL ICS backend 2013-10-11 16:48:46 +11:00
6xx-suspend.S powerpc: Use CURRENT_THREAD_INFO instead of open coded assembly 2012-07-11 14:18:22 +10:00
axonram.c fs: move code out of buffer.c 2012-01-03 22:54:07 -05:00
cpm1.c powerpc: Mark low level irq handlers NO_THREAD 2013-06-20 16:55:08 +10:00
cpm2_pic.c powerpc/irqdomain: Fix broken NR_IRQ references 2012-04-30 10:45:26 +10:00
cpm2_pic.h
cpm2.c
cpm_common.c Disintegrate asm/system.h for PowerPC 2012-03-28 18:30:02 +01:00
dart_iommu.c powerpc/iommu: Fix multiple issues with IOMMU pools code 2012-10-04 18:03:20 +10:00
dart.h
dcr-low.S
dcr.c powerpc: add export.h to files making use of EXPORT_SYMBOL 2011-10-31 19:30:37 -04:00
ehv_pic.c powerpc: Fix irq_set_affinity() return values 2013-05-14 16:00:18 +10:00
fsl_85xx_cache_ctlr.h powerpc/85xx: Fix sram_offset parameter type 2012-07-26 13:24:32 -05:00
fsl_85xx_cache_sram.c powerpc/85xx: Fix compiler error with THIS_MODULE and related 2012-03-16 14:50:25 -05:00
fsl_85xx_l2ctlr.c powerpc/85xx: l2sram - Add compatible string for BSC9131 platform 2013-02-19 11:01:54 -06:00
fsl_gtm.c powerpc: Fix typos in Freescale copyright claims 2012-11-15 13:00:58 +11:00
fsl_ifc.c powerpc/fsl: ifc: sparse fixes 2013-02-12 11:05:21 -06:00
fsl_lbc.c powerpc/fsl: lbc: sparse fixes 2013-02-12 11:05:18 -06:00
fsl_mpic_err.c powerpc/mpic: FSL MPIC error interrupt support. 2012-09-12 14:57:10 -05:00
fsl_mpic_timer_wakeup.c powerpc/fsl: add MPIC timer wakeup support 2013-07-01 18:38:42 -05:00
fsl_msi.c powerpc/fsl_msi: add MSIIR1 support for MPIC v4.3 2013-08-07 18:38:05 -05:00
fsl_msi.h powerpc/fsl_msi: add MSIIR1 support for MPIC v4.3 2013-08-07 18:38:05 -05:00
fsl_pci.c powerpc/pci: Change the DECLARE_PCI_FIXUP_{HEADER => EARLY} macro of pci quirk 2013-10-28 21:11:15 -05:00
fsl_pci.h IOMMU Updates for Linux v3.12 2013-09-12 11:29:26 -07:00
fsl_pmc.c powerpc: add export.h to files making use of EXPORT_SYMBOL 2011-10-31 19:30:37 -04:00
fsl_rio.c POWERPC: drivers: remove __dev* attributes. 2013-01-03 15:57:04 -08:00
fsl_rio.h fsl-rio: Add two ports and rapidio message units support 2011-11-24 02:01:34 -06:00
fsl_rmu.c powerpc/srio: Fix the compile errors when building with 64bit 2012-03-16 10:46:30 -05:00
fsl_soc.c powerpc/fsl: fsl_soc: sparse fixes 2013-02-12 11:05:20 -06:00
fsl_soc.h powerpc/mpc512x: remove unnecessary #if 2013-10-30 22:56:10 +01:00
grackle.c powerpc: rename ppc_pci_*_flags to pci_*_flags 2011-07-12 09:28:04 -05:00
i8259.c irq_domain: Add support for base irq and hwirq in legacy mappings 2012-02-16 06:11:23 -07:00
indirect_pci.c powerpc/fsl-pci Make PCIe hotplug work with Freescale PCIe controllers 2013-04-10 10:15:28 -05:00
ipic.c irq_domain/powerpc: Replace custom xlate functions with library functions 2012-02-16 06:11:24 -07:00
ipic.h irq_domain/powerpc: Use common irq_domain structure instead of irq_host 2012-02-14 14:06:50 -07:00
Kconfig powerpc/scom: CONFIG_SCOM_DEBUGFS should depend on CONFIG_DEBUG_FS 2013-10-11 16:53:49 +11:00
Makefile powerpc/fsl: add MPIC timer wakeup support 2013-07-01 18:38:42 -05:00
micropatch.c
mmio_nvram.c treewide: Convert uses of struct resource to resource_size(ptr) 2011-06-10 14:55:36 +02:00
mpc5xxx_clocks.c powerpc/mpc5xxx: fix sparse warning for non static symbol 2013-02-05 07:40:43 +00:00
mpc8xx_pic.c powerpc/8xx: Fix NR_IRQ bugs and refactor 8xx interrupt controller 2012-04-30 10:45:25 +10:00
mpc8xx_pic.h
mpic_msgr.c POWERPC: drivers: remove __dev* attributes. 2013-01-03 15:57:04 -08:00
mpic_msi.c Merge branch 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc 2012-03-21 18:55:10 -07:00
mpic_pasemi_msi.c powerpc: Convert to new irq_* function names 2011-03-29 14:48:12 +02:00
mpic_timer.c powerpc/mpic: add global timer support 2013-07-01 18:38:41 -05:00
mpic_u3msi.c powerpc: Convert to new irq_* function names 2011-03-29 14:48:12 +02:00
mpic.c powerpc/mpic: Disable preemption when calling mpic_processor_id() 2013-10-11 16:48:58 +11:00
mpic.h powerpc/mpic: FSL MPIC error interrupt support. 2012-09-12 14:57:10 -05:00
msi_bitmap.c Disintegrate asm/system.h for PowerPC 2012-03-28 18:30:02 +01:00
mv64x60_dev.c powerpc/mv643xx_eth: fix return check in mv64x60_eth_register_shared_pdev() 2013-10-28 21:11:23 -05:00
mv64x60_pci.c POWERPC: drivers: remove __dev* attributes. 2013-01-03 15:57:04 -08:00
mv64x60_pic.c irq_domain: Replace irq_alloc_host() with revmap-specific initializers 2012-02-16 06:11:22 -07:00
mv64x60_udbg.c treewide: Convert uses of struct resource to resource_size(ptr) 2011-06-10 14:55:36 +02:00
mv64x60.h
of_rtc.c
pmi.c powerpc/sysdev: Use module_platform_driver macro 2012-11-15 13:00:05 +11:00
ppc4xx_cpm.c cpu: convert 'cpu' and 'machinecheck' sysdev_class to a regular subsystem 2011-12-21 14:29:42 -08:00
ppc4xx_gpio.c
ppc4xx_msi.c POWERPC: drivers: remove __dev* attributes. 2013-01-03 15:57:04 -08:00
ppc4xx_ocm.c powerpc/44x: Support OCM(On Chip Memory) for APM821xx SoC and Bluestone board 2013-01-10 15:08:37 +11:00
ppc4xx_pci.c powerpc/pci: Support per-aperture memory offset 2013-05-06 13:40:40 +10:00
ppc4xx_pci.h powerpc/476fpe: Add 476fpe SoC code 2011-12-09 07:51:02 -05:00
ppc4xx_soc.c powerpc/irq: Remove IRQF_DISABLED 2011-11-08 14:51:46 +11:00
rtc_cmos_setup.c PTR_RET is now PTR_ERR_OR_ZERO(): Replace most. 2013-07-15 11:25:01 +09:30
scom.c powerpc/scom: Improve debugfs interface 2013-11-06 14:13:50 +11:00
simple_gpio.c powerpc: remove non-required uses of include <linux/module.h> 2011-10-31 19:30:44 -04:00
simple_gpio.h
tsi108_dev.c Disintegrate asm/system.h for PowerPC 2012-03-28 18:30:02 +01:00
tsi108_pci.c irq_domain: Add support for base irq and hwirq in legacy mappings 2012-02-16 06:11:23 -07:00
udbg_memcons.c powerpc: Add an in memory udbg console 2013-05-08 06:36:49 +10:00
uic.c irq_domain/powerpc: Replace custom xlate functions with library functions 2012-02-16 06:11:24 -07:00
xilinx_intc.c irq_domain: Replace irq_alloc_host() with revmap-specific initializers 2012-02-16 06:11:22 -07:00
xilinx_pci.c