RE: [PATCH 08/20] dt-bindings: usb: renesas-xhci: Refer to the usb-xhci.yaml file
Hi, > From: Serge Semin, Sent: Wednesday, October 14, 2020 7:14 PM > > With minor peculiarities (like uploading some vendor-specific firmware) > these are just Generic xHCI controllers fully compatible with its > properties. Make sure the Renesas USB xHCI DT nodes are also validated > against the Generic xHCI DT schema. > > Signed-off-by: Serge Semin > --- Thank you for the patch! Reviewed-by: Yoshihiro Shimoda Best regards, Yoshihiro Shimoda ___ linux-snps-arc mailing list linux-snps-arc@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-snps-arc
[PATCH] Revert "ARC: entry: fix potential EFA clobber when TIF_SYSCALL_TRACE"
This reverts commit 00fdec98d9881bf5173af09aebd353ab3b9ac729. (but only from 5.2 and prior kernels) The original commit was a preventive fix based on code-review and was auto-picked for stable back-port (for better or worse). It was OK for v5.3+ kernels, but turned up needing an implicit change 68e5c6f073bcf70 "(ARC: entry: EV_Trap expects r10 (vs. r9) to have exception cause)" merged in v5.3 which itself was not backported. So to summarize the stable backport of this patch for v5.2 and prior kernels is busted and it won't boot. The obvious solution is backport 68e5c6f073bcf70 but that is a pain as it doesn't revert cleanly and each of affected kernels (so far v4.19, v4.14, v4.9, v4.4) needs a slightly different massaged varaint. So the easier fix is to simply revert the backport from 5.2 and prior. The issue was not a big deal as it would cause strace to sporadically not work correctly. Waldemar Brodkorb first reported this when running ARC uClibc regressions on latest stable kernels (with offending backport). Once he bisected it, the analysis was trivial, so thx to him for this. Reported-by: Waldemar Brodkorb Bisected-by: Waldemar Brodkorb Cc: stable # 5.2 and prior Signed-off-by: Vineet Gupta --- arch/arc/kernel/entry.S | 16 +++- 1 file changed, 11 insertions(+), 5 deletions(-) diff --git a/arch/arc/kernel/entry.S b/arch/arc/kernel/entry.S index ea00c8a17f07..60406ec62eb8 100644 --- a/arch/arc/kernel/entry.S +++ b/arch/arc/kernel/entry.S @@ -165,6 +165,7 @@ END(EV_Extension) tracesys: ; save EFA in case tracer wants the PC of traced task ; using ERET won't work since next-PC has already committed + lr r12, [efa] GET_CURR_TASK_FIELD_PTR TASK_THREAD, r11 st r12, [r11, THREAD_FAULT_ADDR] ; thread.fault_address @@ -207,9 +208,15 @@ tracesys_exit: ; Breakpoint TRAP ; - trap_with_param: - mov r0, r12 ; EFA in case ptracer/gdb wants stop_pc + + ; stop_pc info by gdb needs this info + lr r0, [efa] mov r1, sp + ; Now that we have read EFA, it is safe to do "fake" rtie + ; and get out of CPU exception mode + FAKE_RET_FROM_EXCPN + ; Save callee regs in case gdb wants to have a look ; SP will grow up by size of CALLEE Reg-File ; NOTE: clobbers r12 @@ -236,10 +243,6 @@ ENTRY(EV_Trap) EXCEPTION_PROLOGUE - lr r12, [efa] - - FAKE_RET_FROM_EXCPN - ; TRAP 1 :breakpoints ; Check ECR for trap with arg (PROLOGUE ensures r10 has ECR) bmsk.f 0, r10, 7 @@ -247,6 +250,9 @@ ENTRY(EV_Trap) ; TRAP (no param): syscall top level + ; First return from Exception to pure K mode (Exception/IRQs renabled) + FAKE_RET_FROM_EXCPN + ; If syscall tracing ongoing, invoke pre-post-hooks GET_CURR_THR_INFO_FLAGS r10 btst r10, TIF_SYSCALL_TRACE -- 2.25.1 ___ linux-snps-arc mailing list linux-snps-arc@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-snps-arc
[GIT PULL] ARC changes for 5.10-rc1
Hi Linus, The bulk of ARC pull request is removal of EZChip NPS platform which was suffering from constant bitrot. In recent years EZChip has gone though multiple successive acquisitions and I guess things and people move on. I would like to take this opportunity to recognize and thank all those good folks (Gilad, Noam, Ofer...) for contributing major bits to ARC port (SMP, Big Endian) Please pull. Thx, -Vineet -> The following changes since commit 549738f15da0e5a00275977623be199fbbf7df50: Linux 5.9-rc8 (2020-10-04 16:04:34 -0700) are available in the Git repository at: git://git.kernel.org/pub/scm/linux/kernel/git/vgupta/arc.git/ tags/arc-5.10-rc1 for you to fetch changes up to 6364d1b41cc382db3b03cf33c57b6007ee8f09cf: arc: include/asm: fix typos of "themselves" (2020-10-05 21:02:29 -0700) ARC changes for 5.10 - Drop support for EZChip NPS platform - miscll other fixes Mike Rapoport (1): ARC: SMP: fix typo and use "come up" instead of "comeup" Necip Fazil Yildiran (1): arc: plat-hsdk: fix kconfig dependency warning when !RESET_CONTROLLER Randy Dunlap (1): arc: include/asm: fix typos of "themselves" Vineet Gupta (1): ARC: [plat-eznps]: Drop support for EZChip NPS platform Zhen Lei (1): ARC: [dts] fix the errors detected by dtbs_check MAINTAINERS | 7 -- arch/arc/Kconfig| 2 - arch/arc/Makefile | 5 - arch/arc/boot/dts/axc001.dtsi | 2 +- arch/arc/boot/dts/axc003.dtsi | 2 +- arch/arc/boot/dts/axc003_idu.dtsi | 2 +- arch/arc/boot/dts/eznps.dts | 84 - arch/arc/boot/dts/vdk_axc003.dtsi | 2 +- arch/arc/boot/dts/vdk_axc003_idu.dtsi | 2 +- arch/arc/configs/nps_defconfig | 80 arch/arc/include/asm/atomic.h | 108 + arch/arc/include/asm/barrier.h | 9 +- arch/arc/include/asm/bitops.h | 58 + arch/arc/include/asm/cmpxchg.h | 72 +-- arch/arc/include/asm/entry-compact.h| 27 - arch/arc/include/asm/processor.h| 37 -- arch/arc/include/asm/ptrace.h | 5 - arch/arc/include/asm/setup.h| 4 - arch/arc/include/asm/spinlock.h | 6 - arch/arc/include/asm/switch_to.h| 9 -- arch/arc/kernel/ctx_sw.c| 13 -- arch/arc/kernel/devtree.c | 2 - arch/arc/kernel/process.c | 15 --- arch/arc/kernel/smp.c | 2 +- arch/arc/mm/tlbex.S | 7 -- arch/arc/plat-eznps/Kconfig | 58 - arch/arc/plat-eznps/Makefile| 8 -- arch/arc/plat-eznps/ctop.c | 21 arch/arc/plat-eznps/entry.S | 60 - arch/arc/plat-eznps/include/plat/ctop.h | 208 arch/arc/plat-eznps/include/plat/mtm.h | 49 arch/arc/plat-eznps/include/plat/smp.h | 15 --- arch/arc/plat-eznps/mtm.c | 166 - arch/arc/plat-eznps/platform.c | 91 -- arch/arc/plat-eznps/smp.c | 138 - arch/arc/plat-hsdk/Kconfig | 1 + 36 files changed, 15 insertions(+), 1362 deletions(-) delete mode 100644 arch/arc/boot/dts/eznps.dts delete mode 100644 arch/arc/configs/nps_defconfig delete mode 100644 arch/arc/plat-eznps/Kconfig delete mode 100644 arch/arc/plat-eznps/Makefile delete mode 100644 arch/arc/plat-eznps/ctop.c delete mode 100644 arch/arc/plat-eznps/entry.S delete mode 100644 arch/arc/plat-eznps/include/plat/ctop.h delete mode 100644 arch/arc/plat-eznps/include/plat/mtm.h delete mode 100644 arch/arc/plat-eznps/include/plat/smp.h delete mode 100644 arch/arc/plat-eznps/mtm.c delete mode 100644 arch/arc/plat-eznps/platform.c delete mode 100644 arch/arc/plat-eznps/smp.c ___ linux-snps-arc mailing list linux-snps-arc@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-snps-arc
Re: [PATCH 11/20] dt-bindings: usb: dwc3: Add synopsys,dwc3 compatible string
On Fri, Oct 16, 2020 at 01:53:40PM -0500, Rob Herring wrote: > On Thu, Oct 15, 2020 at 12:35:54AM +0300, Serge Semin wrote: > > On Wed, Oct 14, 2020 at 10:18:18PM +0200, Krzysztof Kozlowski wrote: > > > On Wed, Oct 14, 2020 at 01:13:53PM +0300, Serge Semin wrote: > > > > The DWC USB3 driver and some DTS files like Exynos 5250, Keystone k2e, > > > > etc > > > > expects the DWC USB3 DT node to have the compatible string with the > > > > "synopsys" vendor prefix. Let's add the corresponding compatible string > > > > to > > > > the controller DT schema, but mark it as deprecated seeing the Synopsys, > > > > Inc. is presented with just "snps" vendor prefix. > > > > > > > > Instead of adding deprecated schema just correct the DTSes to use snps. > > > The "synopsys" is not even in vendor prefixes. > > > > Yeah, it's not, but the driver and some dts'es use it this way. I am not > > sure > > that the solution suggested by you is much better than mine. So let's hear > > the > > Rob'es opinion out in this matter. @Rob, what do you think? > > I think we should fix the dts files given there's only 5. Ok. I'll do that. -Sergey > > Rob ___ linux-snps-arc mailing list linux-snps-arc@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-snps-arc
