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2016-12-09powerpc: get hugetlbpage handling more genericChristophe Leroy
Today there are two implementations of hugetlbpages which are managed by exclusive #ifdefs: * FSL_BOOKE: several directory entries points to the same single hugepage * BOOK3S: one upper level directory entry points to a table of hugepages In preparation of implementation of hugepage support on the 8xx, we need a mix of the two above solutions, because the 8xx needs both cases depending on the size of pages: * In 4k page size mode, each PGD entry covers a 4M bytes area. It means that 2 PGD entries will be necessary to cover an 8M hugepage while a single PGD entry will cover 8x 512k hugepages. * In 16 page size mode, each PGD entry covers a 64M bytes area. It means that 8x 8M hugepages will be covered by one PGD entry and 64x 512k hugepages will be covers by one PGD entry. This patch: * removes #ifdefs in favor of if/else based on the range sizes * merges the two huge_pte_alloc() functions as they are pretty similar * merges the two hugetlbpage_init() functions as they are pretty similar Signed-off-by: Christophe Leroy <christophe.leroy@c-s.fr> Reviewed-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com> (v3) Signed-off-by: Scott Wood <oss@buserror.net>
2016-12-09powerpc: port 64 bits pgtable_cache to 32 bitsChristophe Leroy
Today powerpc64 uses a set of pgtable_caches while powerpc32 uses standard pages when using 4k pages and a single pgtable_cache if using other size pages. In preparation of implementing huge pages on the 8xx, this patch replaces the specific powerpc32 handling by the 64 bits approach. This is done by: * moving 64 bits pgtable_cache_add() and pgtable_cache_init() in a new file called init-common.c * modifying pgtable_cache_init() to also handle the case without PMD * removing the 32 bits version of pgtable_cache_add() and pgtable_cache_init() * copying related header contents from 64 bits into both the book3s/32 and nohash/32 header files On the 8xx, the following cache sizes will be used: * 4k pages mode: - PGT_CACHE(10) for PGD - PGT_CACHE(3) for 512k hugepage tables * 16k pages mode: - PGT_CACHE(6) for PGD - PGT_CACHE(7) for 512k hugepage tables - PGT_CACHE(3) for 8M hugepage tables Signed-off-by: Christophe Leroy <christophe.leroy@c-s.fr> Reviewed-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com> Signed-off-by: Scott Wood <oss@buserror.net>
2016-12-04soc/fsl/bman: Use resource_size instead of computationWei Yongjun
Use resource_size function on resource object instead of explicit computation. Generated by: scripts/coccinelle/api/resource_size.cocci Signed-off-by: Wei Yongjun <weiyongjun1@huawei.com> Signed-off-by: Scott Wood <oss@buserror.net>
2016-12-04soc/fsl/qe: use builtin_platform_driverGeliang Tang
Use builtin_platform_driver() helper to simplify the code. Signed-off-by: Geliang Tang <geliangtang@gmail.com> Signed-off-by: Scott Wood <oss@buserror.net>
2016-12-04powerpc/fsl_pmc: use builtin_platform_driverGeliang Tang
Use builtin_platform_driver() helper to simplify the code. Signed-off-by: Geliang Tang <geliangtang@gmail.com> Signed-off-by: Scott Wood <oss@buserror.net>
2016-12-04powerpc/83xx/suspend: use builtin_platform_driverGeliang Tang
Use builtin_platform_driver() helper to simplify the code. Signed-off-by: Geliang Tang <geliangtang@gmail.com> Signed-off-by: Scott Wood <oss@buserror.net>
2016-11-23soc/qman: Handle endianness of h/w descriptorsClaudiu Manoil
The hardware descriptors have big endian (BE) format. Provide proper endianness handling for the remaining descriptor fields, to ensure they are correctly accessed by non-BE CPUs too. Signed-off-by: Claudiu Manoil <claudiu.manoil@nxp.com> Signed-off-by: Scott Wood <oss@buserror.net>
2016-11-23soc/qman: Clean up CGR CSCN target update operationsClaudiu Manoil
Signed-off-by: Claudiu Manoil <claudiu.manoil@nxp.com> Signed-off-by: Scott Wood <oss@buserror.net>
2016-11-23soc/qman: Change remaining contextB into context_bClaudiu Manoil
There are multiple occurences of both contextB and context_b in different h/w descriptors, referring to the same descriptor field known as "Context B". Stick with the "context_b" naming, for obvious reasons including consistency (see also context_a). Signed-off-by: Claudiu Manoil <claudiu.manoil@nxp.com> Signed-off-by: Scott Wood <oss@buserror.net>
2016-11-23soc/qbman: Handle endianness of qm/bm_in/out()Claudiu Manoil
Signed-off-by: Claudiu Manoil <claudiu.manoil@nxp.com> Signed-off-by: Scott Wood <oss@buserror.net>
2016-11-23soc/qman: Drop unused field from eqcr/dqrr descriptorsClaudiu Manoil
ORP ("Order Restoration Point") mechanism not supported. Signed-off-by: Claudiu Manoil <claudiu.manoil@nxp.com> Signed-off-by: Scott Wood <oss@buserror.net>
2016-11-23soc/qman: Fix accesses to fqid, cleanupClaudiu Manoil
Preventively mask every access to the 'fqid' h/w field, since it is defined as a 24-bit field, for every h/w descriptor. Add generic accessors for this field to ensure correct access. Signed-off-by: Claudiu Manoil <claudiu.manoil@nxp.com> Signed-off-by: Scott Wood <oss@buserror.net>
2016-11-23soc/qman: Remove unused struct qm_mcc* layoutsClaudiu Manoil
1. qm_mcc_querywq layout not used for now, so drop it; 2. queryfq, queryfq_np and alterfq are used only for accesses to the 'fqid' field, so replace these with a generic 'fq' layout. As a consequence, 'querycgr' turns into 'cgr' following the same reasoning above and for consistent naming. Signed-off-by: Claudiu Manoil <claudiu.manoil@nxp.com> Signed-off-by: Scott Wood <oss@buserror.net>
2016-11-23soc/qman: Remove redundant checks from qman_create_cgr()Claudiu Manoil
opts is checked redundantly. Move local_opts declaration inside its usage scope. Signed-off-by: Claudiu Manoil <claudiu.manoil@nxp.com> Signed-off-by: Scott Wood <oss@buserror.net>
2016-11-23soc/qman: test: Don't use dummy platform device for dma mappingClaudiu Manoil
Replace dummy platform device hack with a reference to a portal's platform device, in order to dma map the test frame for this small unit test. The 2 qman symbols need to be exported because this self test is a kernel module. Signed-off-by: Claudiu Manoil <claudiu.manoil@nxp.com> Signed-off-by: Scott Wood <oss@buserror.net>
2016-11-23soc/qman: Don't add a new platform device for dma mappingClaudiu Manoil
The qman portals are platform devices themselves, so they should handle dma mappings. Creating a dummy platform device in order to support dma mapping operations is not justified (and not portable). Instead, do the mapping against the first portal that has been initialised. Signed-off-by: Claudiu Manoil <claudiu.manoil@nxp.com> Signed-off-by: Scott Wood <oss@buserror.net>
2016-11-23soc/qman: test: Fix implementation of fd_cmp()Claudiu Manoil
This function must only return the truth value of whether two frame descriptors are different or not. It does NOT have to compute some obscure difference between fd fields and return it as an int, making sparse complain about type conversions in the process. Signed-off-by: Claudiu Manoil <claudiu.manoil@nxp.com> Signed-off-by: Scott Wood <oss@buserror.net>
2016-11-23soc/qman: Fix direct access to fd's addr_lo, use proper accesorClaudiu Manoil
Use the proper accessor to get the FD address. Accessing the internal field "addr_lo" directly is not portable and error prone. Signed-off-by: Claudiu Manoil <claudiu.manoil@nxp.com> Signed-off-by: Scott Wood <oss@buserror.net>
2016-11-23soc/qman: Fix struct qm_fqd set accessor for context_aClaudiu Manoil
context_a.hi is 32bit Signed-off-by: Claudiu Manoil <claudiu.manoil@nxp.com> Signed-off-by: Scott Wood <oss@buserror.net>
2016-11-23soc/qbman: Fix resource leak on portal probing error pathClaudiu Manoil
In case init_pcfg() returns with error the CI region must be unmapped too. Signed-off-by: Claudiu Manoil <claudiu.manoil@nxp.com> Signed-off-by: Scott Wood <oss@buserror.net>
2016-11-23soc/qman: Fix h/w resource cleanup error path handlingClaudiu Manoil
qman_query_fq*() may return other error codes apart from -ERANGE, in which cases the error handling done by the resource cleanup callers would be wrong. The patch fixes the handling of those cases, and cleans up related code inside the resource cleanup & release handlers (i.e. replace hardcoded fqid value with corresponding define). Signed-off-by: Claudiu Manoil <claudiu.manoil@nxp.com> Signed-off-by: Scott Wood <oss@buserror.net>
2016-11-23soc/qman: Replace of_get_property() with portable equivalentMadalin Bucur
Use arch portable of_property_read_u32() instead, which takes care of endianness conversions. Signed-off-by: Madalin Bucur <madalin.bucur@nxp.com> Signed-off-by: Claudiu Manoil <claudiu.manoil@nxp.com> Signed-off-by: Scott Wood <oss@buserror.net>
2016-11-23soc/qman: Check ioremap return valueMadalin Bucur
Signed-off-by: Madalin Bucur <madalin.bucur@nxp.com> Signed-off-by: Claudiu Manoil <claudiu.manoil@nxp.com> Signed-off-by: Scott Wood <oss@buserror.net>
2016-11-23powerpc/85xx: Enable gpio power/reset driverAndy Fleming
These config changes build: drivers/power/reset/gpio-poweroff.c drivers/power/reset/gpio-restart.c Signed-off-by: Andy Fleming <afleming@gmail.com> Signed-off-by: Scott Wood <oss@buserror.net>
2016-11-23powerpc/fsl_soc: improve and simplify get_baudrateHeiner Kallweit
Use of_property_read_u32 instead of the generic of_get_property to simplify the code. In addition move the declaration of fs_baudrate into get_baudrate because it's private to this function. Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com> Signed-off-by: Scott Wood <oss@buserror.net>
2016-11-23powerpc/fsl_soc: improve and simplify get_brgfreqHeiner Kallweit
Use of_property_read_u32 instead of the generic of_get_property to simplify the code. In addition move the declaration of brgfreq into get_brgfreq because it's private to this function. Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com> [scottwood: minor whitespace fixes] Signed-off-by: Scott Wood <oss@buserror.net>
2016-11-23powerpc/fsl_soc: improve and simplify fsl_get_sys_freqHeiner Kallweit
Use of_property_read_u32 instead of the generic of_get_property to simplify the code. In addition move the declaration of sysfreq into fsl_get_sys_freq because it's private to this function. Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com> Signed-off-by: Scott Wood <oss@buserror.net>
2016-11-22powerpc/85xx/qemu: Enable CONFIG_E500 and CONFIG_PPC_E500MCDavid Engraf
The QEMU e500 board needs to enable CONFIG_E500 to correctly boot. QEMU for ppc64 uses e5500/e6500 emulation, thus CONFIG_PPC_E500MC is required as well. Signed-off-by: David Engraf <david.engraf@sysgo.com> Signed-off-by: Scott Wood <oss@buserror.net>
2016-11-22soc/fsl: fix spelling mistakes in critical error messagesColin Ian King
Trivial fix to spelling mistake "uncommited" to "uncommitted" in critical error messages. Signed-off-by: Colin Ian King <colin.king@canonical.com> Signed-off-by: Scott Wood <oss@buserror.net>
2016-11-22powerpc/dts: add device tree entry for W83793 on T4240RDBFlorian Larysch
The T4240RDB contains a W83793 hardware monitoring chip. Add a device tree entry to make the driver attach to it, as the i2c-mpc bus driver dropped support for class-based instantiation of devices a long time ago. Signed-off-by: Florian Larysch <fl@n621.de> Signed-off-by: Scott Wood <oss@buserror.net>
2016-11-22DT: i2c: W83793 is a trivial deviceFlorian Larysch
Signed-off-by: Florian Larysch <fl@n621.de> Acked-by: Rob Herring <robh@kernel.org> Signed-off-by: Scott Wood <oss@buserror.net>
2016-11-17powerpc/mm: Correct process and partition table max sizeSuraj Jitindar Singh
Version 3.00 of the ISA states that the PATS (partition table size) field of the PTCR (partition table control register) and the PRTS (process table size) field of the partition table entry must both be less than or equal to 24. However the actual size of the partition and process tables is equal to 2 to the power of 12 plus the PATS and PRTS fields, respectively. This means that the max allowable size of each of these tables is 2^36 or 64GB for both. Thus when checking the size shift for each we should be checking for values of greater than 36 instead of the current check for shifts larger than 24 and 23. Fixes: 2bfd65e45e877fb5704730244da67c748d28a1b8 Signed-off-by: Suraj Jitindar Singh <sjitindarsingh@gmail.com> Reviewed-by: Balbir Singh <bsingharora@gmail.com> Reviewed-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
2016-11-17selftests/powerpc: Add ptrace tests for TM SPR registersAnshuman Khandual
This patch adds ptrace interface test for TM SPR registers. This also adds ptrace interface based helper functions related to TM SPR registers access. Signed-off-by: Anshuman Khandual <khandual@linux.vnet.ibm.com> Signed-off-by: Simon Guo <wei.guo.simon@gmail.com> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
2016-11-17selftests/powerpc: Add ptrace tests for VSX, VMX registers in suspended TMAnshuman Khandual
This patch adds ptrace interface test for VSX, VMX registers inside suspended TM context. Signed-off-by: Anshuman Khandual <khandual@linux.vnet.ibm.com> Signed-off-by: Simon Guo <wei.guo.simon@gmail.com> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
2016-11-17selftests/powerpc: Add ptrace tests for VSX, VMX registers in TMAnshuman Khandual
This patch adds ptrace interface test for VSX, VMX registers inside TM context. This also adds ptrace interface based helper functions related to chckpointed VSX, VMX registers access. Signed-off-by: Anshuman Khandual <khandual@linux.vnet.ibm.com> Signed-off-by: Simon Guo <wei.guo.simon@gmail.com> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
2016-11-17selftests/powerpc: Add ptrace tests for VSX, VMX registersAnshuman Khandual
This patch adds ptrace interface test for VSX, VMX registers. This also adds ptrace interface based helper functions related to VSX, VMX registers access. This also adds some assembly helper functions related to VSX and VMX registers. Signed-off-by: Anshuman Khandual <khandual@linux.vnet.ibm.com> Signed-off-by: Simon Guo <wei.guo.simon@gmail.com> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
2016-11-17selftests/powerpc: Add ptrace tests for TAR, PPR, DSCR in suspended TMAnshuman Khandual
This patch adds ptrace interface test for TAR, PPR, DSCR registers inside suspended TM context. Signed-off-by: Anshuman Khandual <khandual@linux.vnet.ibm.com> Signed-off-by: Simon Guo <wei.guo.simon@gmail.com> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
2016-11-17selftests/powerpc: Add ptrace tests for TAR, PPR, DSCR in TMAnshuman Khandual
This patch adds ptrace interface test for TAR, PPR, DSCR registers inside TM context. This also adds ptrace interface based helper functions related to checkpointed TAR, PPR, DSCR register access. Signed-off-by: Anshuman Khandual <khandual@linux.vnet.ibm.com> Signed-off-by: Simon Guo <wei.guo.simon@gmail.com> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
2016-11-17selftests/powerpc: Add ptrace tests for TAR, PPR, DSCR registersAnshuman Khandual
This patch adds ptrace interface test for TAR, PPR, DSCR registers. This also adds ptrace interface based helper functions related to TAR, PPR, DSCR register access. Signed-off-by: Anshuman Khandual <khandual@linux.vnet.ibm.com> Signed-off-by: Simon Guo <wei.guo.simon@gmail.com> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
2016-11-17selftests/powerpc: Add ptrace tests for GPR/FPR registers in suspended TMAnshuman Khandual
This patch adds ptrace interface test for GPR/FPR registers inside suspended TM context. Signed-off-by: Anshuman Khandual <khandual@linux.vnet.ibm.com> Signed-off-by: Simon Guo <wei.guo.simon@gmail.com> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
2016-11-17selftests/powerpc: Add ptrace tests for GPR/FPR registers in TMAnshuman Khandual
This patch adds ptrace interface test for GPR/FPR registers inside TM context. This adds ptrace interface based helper functions related to checkpointed GPR/FPR access. Signed-off-by: Anshuman Khandual <khandual@linux.vnet.ibm.com> Signed-off-by: Simon Guo <wei.guo.simon@gmail.com> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
2016-11-17selftests/powerpc: Add ptrace tests for GPR/FPR registersAnshuman Khandual
This patch adds ptrace interface test for GPR/FPR registers. This adds ptrace interface based helper functions related to GPR/FPR access and some assembly helper functions related to GPR/FPR registers. Signed-off-by: Anshuman Khandual <khandual@linux.vnet.ibm.com> Signed-off-by: Simon Guo <wei.guo.simon@gmail.com> [mpe: Add #defines for the new note types when headers don't define them] Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
2016-11-17selftests/powerpc: Move shared headers into new include dirSimon Guo
There are some functions, especially register related, which can be shared across multiple selftests/powerpc test directories. This patch creates a new include directory to store those shared files, so that the file layout becomes more neat. Signed-off-by: Simon Guo <wei.guo.simon@gmail.com> [mpe: Reworked to move the headers only] Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
2016-11-17selftests/powerpc: Add more SPR numbers, TM & VMX instructions to ↵Anshuman Khandual
'reg.h'/'instructions.h' This patch adds SPR number for TAR, PPR, DSCR special purpose registers. It also adds TM, VSX, VMX related instructions which will then be used by patches later in the series. Now that the new DSCR register definitions (SPRN_DSCR_PRIV and SPRN_DSCR) are defined outside this directory, use them instead. Signed-off-by: Anshuman Khandual <khandual@linux.vnet.ibm.com> Signed-off-by: Simon Guo <wei.guo.simon@gmail.com> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
2016-11-17powerpc/mm: Dump hash tableRashmica Gupta
Useful to be able to dump the kernel hash page table to check which pages are hashed along with their sizes and other details. Add a debugfs file to check the hash page table. If radix is enabled (and so there is no hash page table) then this file doesn't exist. To use this the PPC_PTDUMP config option must be selected. Signed-off-by: Rashmica Gupta <rashmicy@gmail.com> [mpe: Fix build with SPARSEMEM_VMEMMAP=n & PSERIES=n] Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
2016-11-17powerpc/mm: Dump linux pagetablesRashmica Gupta
Useful to be able to dump the kernels page tables to check permissions and memory types - derived from arm64's implementation. Add a debugfs file to check the page tables. To use this the PPC_PTDUMP config option must be selected. Signed-off-by: Rashmica Gupta <rashmicy@gmail.com> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
2016-11-17powerpc/pseries: Move CMO code from plapr_wrappers.h to platforms/pseriesMichael Ellerman
Currently there's some CMO (Cooperative Memory Overcommit) code, in plpar_wrappers.h. Some of it is #ifdef CONFIG_PSERIES and some of it isn't. The end result being if a file includes plpar_wrappers.h it won't build with CONFIG_PSERIES=n. Fix it by moving the CMO code into platforms/pseries. The two hcall wrappers can just be moved into their only caller, cmm.c, and the accessors can go in pseries.h. Note we need the accessors because cmm.c can be built as a module, so there needs to be a split between the built-in code vs the module, and that's achieved by using those accessors. Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
2016-11-17powerpc/mm: Fix typo in radix encodings printBalbir Singh
Rename "sift" to "shift". Signed-off-by: Balbir Singh <bsingharora@gmail.com> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
2016-11-14powerpc: convert storcenter_defconfig to use libata PATA driversBartlomiej Zolnierkiewicz
IDE subsystem has been deprecated since 2009 and the majority (if not all) of Linux distributions have switched to use libata for ATA support exclusively. However there are still some users (mostly old or/and embedded non-x86 systems) that have not converted from using IDE subsystem to libata PATA drivers. This doesn't seem to be good thing in the long-term for Linux as while there is less and less PATA systems left in use: * testing efforts are divided between two subsystems * having duplicate drivers for same hardware confuses users This patch converts storcenter_defconfig to use libata PATA drivers. Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
2016-11-14powerpc: convert pseries_defconfig to use libata PATA driversBartlomiej Zolnierkiewicz
IDE subsystem has been deprecated since 2009 and the majority (if not all) of Linux distributions have switched to use libata for ATA support exclusively. However there are still some users (mostly old or/and embedded non-x86 systems) that have not converted from using IDE subsystem to libata PATA drivers. This doesn't seem to be good thing in the long-term for Linux as while there is less and less PATA systems left in use: * testing efforts are divided between two subsystems * having duplicate drivers for same hardware confuses users This patch converts pseries_defconfig to use libata PATA drivers. Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
generated by cgit v1.2.3 (git 2.25.1) at 2024-12-02 22:59:42 +0000