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2017-11-03ARM: configs: Stop selecting the old CESA driverBoris BREZILLON
A new driver has been developed to support the CESA IP. Switch remaining users of the old driver to the new driver in order to remove the old one. Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2017-11-03crypto: marvell - Add a platform_device_id tableBoris BREZILLON
Add a platform_device_id table to allow using this driver on orion platforms that have not been converted to DT. Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2017-11-03crypto: tcrypt - fix buffer lengths in test_aead_speed()Robert Baronescu
Fix the way the length of the buffers used for encryption / decryption are computed. For e.g. in case of encryption, input buffer does not contain an authentication tag. Signed-off-by: Robert Baronescu <robert.baronescu@nxp.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2017-11-03crypto: tcrypt - mark expected switch fall-throughs in do_test()Gustavo A. R. Silva
In preparation to enabling -Wimplicit-fallthrough, mark switch cases where we are expecting to fall through. Cc: Herbert Xu <herbert@gondor.apana.org.au> Cc: "David S. Miller" <davem@davemloft.net> Cc: linux-crypto@vger.kernel.org Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2017-11-03crypto: chelsio - Fix memory leakHarsh Jain
Fix memory leak when device does not support crypto. Reported-by: Dan Carpenter <dan.carpenter@oracle.com> Signed-off-by: Harsh Jain <harsh@chelsio.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2017-11-03crypto: chelsio - Move DMA un/mapping to chcr from lld cxgb4 driverHarsh Jain
Allow chcr to do DMA mapping/Unmapping instead of lld cxgb4. It moves "Copy AAD to dst buffer" requirement from driver to firmware. Signed-off-by: Harsh Jain <harsh@chelsio.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2017-11-03crypto: chelsio - Remove allocation of sg list to implement 2K limit of dsgl ↵Harsh Jain
header Update DMA address index instead of allocating new sg list to impose 2k size limit for each entry. Signed-off-by: Harsh Jain <harsh@chelsio.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2017-11-03crypto: chelsio - Use x8_ble gf multiplication to calculate IV.Harsh Jain
gf128mul_x8_ble() will reduce gf Multiplication iteration by 8. Signed-off-by: Harsh Jain <harsh@chelsio.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2017-11-03crypto: gf128mul - The x8_ble multiplication functionsHarsh Jain
It multiply GF(2^128) elements in the ble format. It will be used by chelsio driver to speed up gf multiplication. Signed-off-by: Harsh Jain <harsh@chelsio.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2017-11-03crypto: chelsio - Check error code with IS_ERR macroYeshaswi M R Gowda
Check and return proper error code. Signed-off-by: Jitendra Lulla <jlulla@chelsio.com> Signed-off-by: Harsh Jain <harsh@chelsio.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2017-11-03crypto: chelsio - Remove unused parameterYeshaswi M R Gowda
Remove unused parameter sent to latest fw. Signed-off-by: Harsh Jain <harsh@chelsio.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2017-11-03staging: rtl8723bs: Convert timers to use timer_setup()Kees Cook
In preparation for unconditionally passing the struct timer_list pointer to all timer callbacks, switch to using the new timer_setup() and from_timer() to pass the timer pointer explicitly. This performs some refactoring to remove needless wrapper functions, and adds a pointer back to the desired adapter. Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Cc: Shreeya Patel <shreeya.patel23498@gmail.com> Cc: Hans de Goede <hdegoede@redhat.com> Cc: Larry Finger <Larry.Finger@lwfinger.net> Cc: Himanshu Jha <himanshujha199640@gmail.com> Cc: Joe Perches <joe@perches.com> Cc: Derek Robson <robsonde@gmail.com> Cc: Harsha Sharma <harshasharmaiitr@gmail.com> Cc: Dan Carpenter <dan.carpenter@oracle.com> Cc: "David S. Miller" <davem@davemloft.net> Cc: Stephen Hemminger <stephen@networkplumber.org> Cc: yuan linyu <Linyu.Yuan@alcatel-sbell.com.cn> Cc: Johannes Berg <johannes.berg@intel.com> Cc: devel@driverdev.osuosl.org Signed-off-by: Kees Cook <keescook@chromium.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-11-03staging: VME: Remove PIO2 driverMartyn Welch
The PIO2 device is (as far as I know) no longer manufactured. I no longer have access to the device and this seems unlikely to change. The only changes to this driver in a long time have been as a result of API changes else where. Time to remove it... Signed-off-by: Martyn Welch <martyn.welch@collabora.co.uk> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-11-03staging: rtl8822be: fix wrong dma unmap lenStanislaw Gruszka
Patch fixes splat: r8822be 0000:04:00.0: DMA-API: device driver frees DMA memory with different size [device address=0x0000000078477000] [map size=4096 bytes] [unmap size=424 bytes] <snip> Call Trace: debug_dma_unmap_page+0xa5/0xb0 ? unmap_single+0x2f/0x40 _rtl8822be_send_bcn_or_cmd_packet+0x2c5/0x300 [r8822be] ? _rtl8822be_send_bcn_or_cmd_packet+0x2c5/0x300 [r8822be] rtl8822b_halmac_cb_write_data_rsvd_page+0x51/0xc0 [r8822be] _halmac_write_data_rsvd_page+0x22/0x30 [r8822be] halmac_download_rsvd_page_88xx+0xee/0x1f0 [r8822be] halmac_dlfw_to_mem_88xx+0x80/0x120 [r8822be] halmac_download_firmware_88xx.part.47+0x477/0x600 [r8822be] halmac_download_firmware_88xx+0x32/0x40 [r8822be] rtl_halmac_dlfw+0x70/0x120 [r8822be] rtl_halmac_init_hal+0x5f/0x1b0 [r8822be] rtl8822be_hw_init+0x8a2/0x1040 [r8822be] Signed-off-by: Stanislaw Gruszka <sgruszka@redhat.com> Acked-by: Larry Finger <Larry.Finger@lwfinger.net> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-11-03crypto: ccm - preserve the IV bufferRomain Izard
The IV buffer used during CCM operations is used twice, during both the hashing step and the ciphering step. When using a hardware accelerator that updates the contents of the IV buffer at the end of ciphering operations, the value will be modified. In the decryption case, the subsequent setup of the hashing algorithm will interpret the updated IV instead of the original value, which can lead to out-of-bounds writes. Reuse the idata buffer, only used in the hashing step, to preserve the IV's value during the ciphering step in the decryption case. Signed-off-by: Romain Izard <romain.izard.pro@gmail.com> Reviewed-by: Tudor Ambarus <tudor.ambarus@microchip.com> Cc: <stable@vger.kernel.org> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2017-11-03crypto: x86/sha1-mb - fix panic due to unaligned accessAndrey Ryabinin
struct sha1_ctx_mgr allocated in sha1_mb_mod_init() via kzalloc() and later passed in sha1_mb_flusher_mgr_flush_avx2() function where instructions vmovdqa used to access the struct. vmovdqa requires 16-bytes aligned argument, but nothing guarantees that struct sha1_ctx_mgr will have that alignment. Unaligned vmovdqa will generate GP fault. Fix this by replacing vmovdqa with vmovdqu which doesn't have alignment requirements. Fixes: 2249cbb53ead ("crypto: sha-mb - SHA1 multibuffer submit and flush routines for AVX2") Signed-off-by: Andrey Ryabinin <aryabinin@virtuozzo.com> Cc: <stable@vger.kernel.org> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2017-11-03crypto: x86/sha256-mb - fix panic due to unaligned accessAndrey Ryabinin
struct sha256_ctx_mgr allocated in sha256_mb_mod_init() via kzalloc() and later passed in sha256_mb_flusher_mgr_flush_avx2() function where instructions vmovdqa used to access the struct. vmovdqa requires 16-bytes aligned argument, but nothing guarantees that struct sha256_ctx_mgr will have that alignment. Unaligned vmovdqa will generate GP fault. Fix this by replacing vmovdqa with vmovdqu which doesn't have alignment requirements. Fixes: a377c6b1876e ("crypto: sha256-mb - submit/flush routines for AVX2") Reported-by: Josh Poimboeuf <jpoimboe@redhat.com> Signed-off-by: Andrey Ryabinin <aryabinin@virtuozzo.com> Cc: <stable@vger.kernel.org> Acked-by: Tim Chen Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2017-11-03staging: rtl8723bs: remove unused variablesArnd Bergmann
A cleanup patch removed the only user of two local variables: drivers/staging/rtl8723bs/hal/hal_btcoex.c: In function 'hal_btcoex_Initialize': drivers/staging/rtl8723bs/hal/hal_btcoex.c:1415:5: error: unused variable 'ret2' [-Werror=unused-variable] drivers/staging/rtl8723bs/hal/hal_btcoex.c:1414:5: error: unused variable 'ret1' [-Werror=unused-variable] This removes the declarations as well. Fixes: 95b3b4238581 ("staging: rtl8723bs: remove ternary operators in assignmet statments") Signed-off-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-11-03staging: greybus: remove unused kfifo_tsArnd Bergmann
As of commit 8e1d6c336d74 ("greybus: loopback: drop bus aggregate calculation"), nothing ever reads from kfifo_ts, so there is no reason to write to it or even allocate it any more. Signed-off-by: Arnd Bergmann <arnd@arndb.de> Reviewed-by: Viresh Kumar <viresh.kumar@linaro.org> Reviewed-by: Bryan O'Donoghue <pure.logic@nexus-software.ie> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-11-03xfrm: Fix stack-out-of-bounds read in xfrm_state_find.Steffen Klassert
When we do tunnel or beet mode, we pass saddr and daddr from the template to xfrm_state_find(), this is ok. On transport mode, we pass the addresses from the flowi, assuming that the IP addresses (and address family) don't change during transformation. This assumption is wrong in the IPv4 mapped IPv6 case, packet is IPv4 and template is IPv6. Fix this by using the addresses from the template unconditionally. Signed-off-by: Steffen Klassert <steffen.klassert@secunet.com>
2017-11-03spi: spi-fsl-dspi: enabling Coldfire mcf5441x dspiAngelo Dureghello
Signed-off-by: Angelo Dureghello <angelo@sysam.it> Signed-off-by: Mark Brown <broonie@kernel.org>
2017-11-03staging: rtl8723bs: Fix space before '[' error.Arvind Yadav
Fix checkpatch.pl error: ERROR: space prohibited before open square bracket '['. Signed-off-by: Arvind Yadav <arvind.yadav.cs@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-11-03staging: rtlwifi: Remove unused variableKees Cook
This removes an unused variable to silence the associated build warning. Fixes: f8af6a323368 ("staging: rtlwifi: Convert timers to use timer_setup()") Signed-off-by: Kees Cook <keescook@chromium.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-11-03staging: ks7010: Convert timers to use timer_setup()Kees Cook
In preparation for unconditionally passing the struct timer_list pointer to all timer callbacks, switch to using the new timer_setup() and from_timer() to pass the timer pointer explicitly. Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Cc: "Tobin C. Harding" <me@tobin.cc> Cc: devel@driverdev.osuosl.org Signed-off-by: Kees Cook <keescook@chromium.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-11-03Staging: rtlwifi: pci: fixed a coding style issueWoohyung Jeon
Fixed a coding style issue. There was a prohibited space. Removed. Signed-off-by: Woohyung-Jeon <w.h.jeon329@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-11-03staging: rtl8723bs: Fix checkpatch.pl errorSidong Yang
Replaces spaces to tabs for indent. Signed-off-by: Sidong Yang <realwakka@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-11-03staging: rtl8188eu: avoid a null dereference on pmlmeprivColin Ian King
There is a check on pmlmepriv before dereferencing it when vfree'ing pmlmepriv->free_bss_buf however the previous call to rtw_free_mlme_priv_ie_data deferences pmlmepriv causing a null pointer deference if it is null. Avoid this by also calling rtw_free_mlme_priv_ie_data if the pointer is non-null. Detected by CoverityScan, CID#1230262 ("Dereference before null check") Fixes: 7b464c9fa5cc ("staging: r8188eu: Add files for new driver - part 4") Signed-off-by: Colin Ian King <colin.king@canonical.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-11-03ASoC: rt5514: The ACPI also should use the function rt5514_parse_dp()oder_chiou@realtek.com
The patch fixed that the ACPI cannot access the device property from the function rt5514_parse_dp(). Signed-off-by: Oder Chiou <oder_chiou@realtek.com> Signed-off-by: Mark Brown <broonie@kernel.org>
2017-11-03regmap: Add a config option for hwspinlockMark Brown
Unlike other lock types hwspinlocks are optional and can be built modular so we can't use them unconditionally in regmap so add a config option that drivers that want to use hwspinlocks with regmap can select which will ensure that hwspinlock is built in. Signed-off-by: Mark Brown <broonie@kernel.org>
2017-11-03Merge branch 'linus' into perf/urgent, to pick up dependent commitsIngo Molnar
Signed-off-by: Ingo Molnar <mingo@kernel.org>
2017-11-03spi: fix IDR collision on systems with both fixed and dynamic SPI bus numbersLucas Stach
On systems where some controllers get a dynamic ID assigned and some have a fixed number from DT, the current implemention might run into an IDR collision if the dynamic controllers gets probed first and get an IDR number, which is later requested by the controller with the fixed numbering. When this happens the fixed controller will fail to register with the SPI core. Fix this by skipping all known alias numbers when assigning the dynamic IDs. Fixes: 9b61e302210e (spi: Pick spi bus number from Linux idr or spi alias) Signed-off-by: Lucas Stach <l.stach@pengutronix.de> Signed-off-by: Mark Brown <broonie@kernel.org>
2017-11-03usb: gadget: udc: renesas_usb3: make const array max_packet_array staticColin Ian King
Don't populate the const array max_packet_array on the stack, instead make it static. Makes the object code smaller by over 90 bytes: Before: text data bss dec hex filename 34337 5612 128 40077 9c8d renesas_usb3.o After: text data bss dec hex filename 34149 5708 128 39985 9c31 renesas_usb3.o (gcc version 7.2.0 x86_64) Signed-off-by: Colin Ian King <colin.king@canonical.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-11-03usb: remove msm_hsusb_hw.hJack Pham
The last two remaining drivers (ehci-msm.c and phy-msm-usb.c) that needed this header were recently removed, so delete this now-unused file. Signed-off-by: Jack Pham <jackp@codeaurora.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-11-03USB: core: move existing SPDX tags to top of the fileGreg Kroah-Hartman
To match the rest of the kernel, the SPDX tags for the drivers/usb/core/ files are moved to the first line of the file. This makes it more obvious the tag is present as well as making it match the other 12k files in the tree with this location. It also uses // to match the "expected style" as well. Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-11-03xfrm: do unconditional template resolution before pcpu cache checkFlorian Westphal
Stephen Smalley says: Since 4.14-rc1, the selinux-testsuite has been encountering sporadic failures during testing of labeled IPSEC. git bisect pointed to commit ec30d ("xfrm: add xdst pcpu cache"). The xdst pcpu cache is only checking that the policies are the same, but does not validate that the policy, state, and flow match with respect to security context labeling. As a result, the wrong SA could be used and the receiver could end up performing permission checking and providing SO_PEERSEC or SCM_SECURITY values for the wrong security context. This fix makes it so that we always do the template resolution, and then checks that the found states match those in the pcpu bundle. This has the disadvantage of doing a bit more work (lookup in state hash table) if we can reuse the xdst entry (we only avoid xdst alloc/free) but we don't add a lot of extra work in case we can't reuse. xfrm_pol_dead() check is removed, reasoning is that xfrm_tmpl_resolve does all needed checks. Cc: Paul Moore <paul@paul-moore.com> Fixes: ec30d78c14a813db39a647b6a348b428 ("xfrm: add xdst pcpu cache") Reported-by: Stephen Smalley <sds@tycho.nsa.gov> Tested-by: Stephen Smalley <sds@tycho.nsa.gov> Signed-off-by: Florian Westphal <fw@strlen.de> Acked-by: Paul Moore <paul@paul-moore.com> Signed-off-by: Steffen Klassert <steffen.klassert@secunet.com>
2017-11-03nvme: comment typo fixed in clearing AERMinwoo Im
a tiny typo fixed in a comment. Signed-off-by: Minwoo Im <minwoo.im.dev@gmail.com> Signed-off-by: Christoph Hellwig <hch@lst.de>
2017-11-03s390/qdio: sanitize put_indicatorSebastian Ott
qdio maintains an array of struct indicator_t. put_indicator takes a pointer to a member of a struct indicator_t within that array, calculates the index, and uses the array and the index to get the struct indicator_t. Simply use the pointer directly. Although the pointer happens to point to the first member of that struct use the container_of macro. Signed-off-by: Sebastian Ott <sebott@linux.vnet.ibm.com> Acked-by: Ursula Braun <ubraun@linux.vnet.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2017-11-03s390/qdio: use atomic_cmpxchgSebastian Ott
qdio uses atomic_read to find an unused indicator and atomic_set to flag it as used. This could lead to multiple users getting the same indicator. Use atomic_cmpxchg instead. Signed-off-by: Sebastian Ott <sebott@linux.vnet.ibm.com> Acked-by: Ursula Braun <ubraun@linux.vnet.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2017-11-03Documentation: Add Tim Bird to list of enforcement statement endorsersBird, Timothy
Add my name to the list. Signed-off-by: Tim Bird <tim.bird@sony.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-11-03net: systemport: Correct IPG length settingsFlorian Fainelli
Due to a documentation mistake, the IPG length was set to 0x12 while it should have been 12 (decimal). This would affect short packet (64B typically) performance since the IPG was bigger than necessary. Fixes: 44a4524c54af ("net: systemport: Add support for SYSTEMPORT Lite") Signed-off-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-11-03tcp: do not mangle skb->cb[] in tcp_make_synack()Eric Dumazet
Christoph Paasch sent a patch to address the following issue : tcp_make_synack() is leaving some TCP private info in skb->cb[], then send the packet by other means than tcp_transmit_skb() tcp_transmit_skb() makes sure to clear skb->cb[] to not confuse IPv4/IPV6 stacks, but we have no such cleanup for SYNACK. tcp_make_synack() should not use tcp_init_nondata_skb() : tcp_init_nondata_skb() really should be limited to skbs put in write/rtx queues (the ones that are only sent via tcp_transmit_skb()) This patch fixes the issue and should even save few cpu cycles ;) Fixes: 971f10eca186 ("tcp: better TCP_SKB_CB layout to reduce cache line misses") Signed-off-by: Eric Dumazet <edumazet@google.com> Reported-by: Christoph Paasch <cpaasch@apple.com> Reviewed-by: Christoph Paasch <cpaasch@apple.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-11-03fib: fib_dump_info can no longer use __in_dev_get_rtnlFlorian Westphal
syzbot reported yet another regression added with DOIT_UNLOCKED. When nexthop is marked as dead, fib_dump_info uses __in_dev_get_rtnl(): ./include/linux/inetdevice.h:230 suspicious rcu_dereference_protected() usage! rcu_scheduler_active = 2, debug_locks = 1 1 lock held by syz-executor2/23859: #0: (rcu_read_lock){....}, at: [<ffffffff840283f0>] inet_rtm_getroute+0xaa0/0x2d70 net/ipv4/route.c:2738 [..] lockdep_rcu_suspicious+0x123/0x170 kernel/locking/lockdep.c:4665 __in_dev_get_rtnl include/linux/inetdevice.h:230 [inline] fib_dump_info+0x1136/0x13d0 net/ipv4/fib_semantics.c:1377 inet_rtm_getroute+0xf97/0x2d70 net/ipv4/route.c:2785 .. This isn't safe anymore, callers either hold RTNL mutex or rcu read lock, so these spots must use rcu_dereference_rtnl() or plain rcu_derefence() (plus unconditional rcu read lock). This does the latter. Fixes: 394f51abb3d04f ("ipv4: route: set ipv4 RTM_GETROUTE to not use rtnl") Reported-by: syzbot <syzkaller@googlegroups.com> Signed-off-by: Florian Westphal <fw@strlen.de> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-11-03stmmac: use of_property_read_u32 instead of read_u8Bhadram Varka
Numbers in DT are stored in “cells” which are 32-bits in size. of_property_read_u8 does not work properly because of endianness problem. This causes it to always return 0 with little-endian architectures. Fix it by using of_property_read_u32() OF API. Signed-off-by: Bhadram Varka <vbhadram@nvidia.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-11-03openrisc: fix possible deadlock scenario during timer syncStafford Horne
OpenRISC borrows its timer sync logic from MIPS, Matt helped to review the OpenRISC implementation and noted that we may suffer the same deadlock case that MIPS has faced. The case being: "the MIPS timer synchronization code contained the possibility of deadlock. If you mark a CPU online before it goes into the synchronize loop, then the boot CPU can schedule a different thread and send IPIs to all "online" CPUs. It gets stuck waiting for the secondary to ack it's IPI, since this secondary CPU has not enabled IRQs yet, and is stuck waiting for the master to synchronise with it. The system then deadlocks." Fix this by moving set_cpu_online() to after timer sync. Reported-by: Matt Redfearn <matt.redfearn@mips.com> Signed-off-by: Stafford Horne <shorne@gmail.com>
2017-11-03openrisc: pass endianness info to sparseLuc Van Oostenryck
openrisc is big-endian only but sparse assumes the same endianness as the building machine. This is problematic for code which expect __BYTE_ORDER__ being correctly predefined by the compiler which sparse can then pre-process differently from what gcc would, depending on the building machine endianness. Fix this by letting sparse know about the architecture endianness. To: Jonas Bonn <jonas@southpole.se> To: Stefan Kristiansson <stefan.kristiansson@saunalahti.fi> To: Stafford Horne <shorne@gmail.com> Signed-off-by: Luc Van Oostenryck <luc.vanoostenryck@gmail.com> Signed-off-by: Stafford Horne <shorne@gmail.com>
2017-11-03openrisc: add tick timer multi-core sync logicStafford Horne
In case timers are not in sync when cpus start (i.e. hot plug / offset resets) we need to synchronize the secondary cpus internal timer with the main cpu. This is needed as in OpenRISC SMP there is only one clocksource registered which reads from the same ttcr register on each cpu. This synchronization routine heavily borrows from mips implementation that does something similar. Signed-off-by: Stafford Horne <shorne@gmail.com>
2017-11-03openrisc: enable LOCKDEP_SUPPORT and irqflags tracingStafford Horne
Lockdep is needed for proving the spinlocks and rwlocks work fine on our platform. It also requires calling the trace_hardirqs_off() and trace_hardirqs_on() pair of routines when entering and exiting an interrupt. For OpenRISC the interrupt stack frame does not support frame pointers, so to call trace_hardirqs_on() and trace_hardirqs_off() here the macro's build up a stack frame each time. There is one necessary small change in _sys_call_handler to move interrupt enabling later so they can get re-enabled during syscall restart. This was done to fix lockdep warnings that are now possible due to this patch. Signed-off-by: Stafford Horne <shorne@gmail.com>
2017-11-03openrisc: support framepointers and STACKTRACE_SUPPORTStafford Horne
For lockdep support a reliable stack trace mechanism is needed. This patch adds support in OpenRISC for the stacktrace framework, implemented by a simple unwinder api. The unwinder api supports both framepointer and basic stack tracing. The unwinder is now used to replace the stack_dump() implementation as well. The new traces are inline with other architectures trace format: Call trace: [<c0004448>] show_stack+0x3c/0x58 [<c031c940>] dump_stack+0xa8/0xe4 [<c0008104>] __cpu_up+0x64/0x130 [<c000d268>] bringup_cpu+0x3c/0x178 [<c000d038>] cpuhp_invoke_callback+0xa8/0x1fc [<c000d680>] cpuhp_up_callbacks+0x44/0x14c [<c000e400>] cpu_up+0x14c/0x1bc [<c041da60>] smp_init+0x104/0x15c [<c033843c>] ? kernel_init+0x0/0x140 [<c0415e04>] kernel_init_freeable+0xbc/0x25c [<c033843c>] ? kernel_init+0x0/0x140 [<c0338458>] kernel_init+0x1c/0x140 [<c003a174>] ? schedule_tail+0x18/0xa0 [<c0006b80>] ret_from_fork+0x1c/0x9c Signed-off-by: Stafford Horne <shorne@gmail.com>
2017-11-03openrisc: add simple_smp dts and defconfig for simulatorsStefan Kristiansson
Simple enough to be compatible with simulation environments, such as verilated systems, QEMU and other targets supporting OpenRISC SMP. This also supports our base FPGA SoC's if the cpu frequency is upped to 50Mhz. Signed-off-by: Stefan Kristiansson <stefan.kristiansson@saunalahti.fi> [shorne@gmail.com: Added defconfig] Signed-off-by: Stafford Horne <shorne@gmail.com>
2017-11-03openrisc: add cacheflush support to fix icache aliasingJan Henrik Weinstock
On OpenRISC the icache does not snoop data stores. This can cause aliasing as reported by Jan. This patch fixes the issue to ensure icache is properly synchronized when code is written to memory. It supports both SMP and UP flushing. This supports dcache flush as well for architectures that do not support write-through caches; most OpenRISC implementations do implement write-through cache however. Dcache flushes are done only on a single core as OpenRISC dcaches all support snooping of bus stores. Signed-off-by: Jan Henrik Weinstock <jan.weinstock@ice.rwth-aachen.de> [shorne@gmail.com: Squashed patches and wrote commit message] Signed-off-by: Stafford Horne <shorne@gmail.com>
generated by cgit (git 2.34.1) at 2025-09-23 17:30:17 +0000