wireguard-linux/arch/csky/Kconfig, branch jd/unified-crypt-queue

csky: Add uprobes support

2020-04-03T03:37:51Z

This patch adds support for uprobes on csky architecture. Just like kprobe, it support single-step and simulate instructions. Signed-off-by: Guo Ren Cc: Arnd Bergmann Cc: Steven Rostedt (VMware)

csky: Add kprobes supported

2020-04-03T03:14:17Z

This patch enable kprobes, kretprobes, ftrace interface. It utilized software breakpoint and single step debug exceptions, instructions simulation on csky. We use USR_BKPT replace origin instruction, and the kprobe handler prepares an excutable memory slot for out-of-line execution with a copy of the original instruction being probed. Most of instructions could be executed by single-step, but some instructions need origin pc value to execute and we need software simulate these instructions. Signed-off-by: Guo Ren Cc: Arnd Bergmann Cc: Steven Rostedt (VMware)

csky: Enable LOCKDEP_SUPPORT

2020-04-02T11:39:42Z

Lockdep is needed by proving the spinlocks and rwlocks. Currently, we only put trace_hardirqs_on/off with csky_irq and ret_from_exception. Signed-off-by: Guo Ren

csky: Enable the gcov function

2020-03-31T16:06:52Z

Support the gcov function in csky architecture. Signed-off-by: Ma Jun Signed-off-by: Guo Ren

csky: Implement ftrace with regs

2020-03-08T12:55:14Z

This patch implements FTRACE_WITH_REGS for csky, which allows a traced function's arguments (and some other registers) to be captured into a struct pt_regs, allowing these to be inspected and/or modified. Signed-off-by: Guo Ren

csky: Add support for restartable sequence

2020-03-08T12:55:14Z

Copied and adapted from vincent's patch, but modified for csky. ref: https://lore.kernel.org/linux-riscv/1572919114-3886-3-git-send-email-vincent.chen@sifive.com/raw Add calls to rseq_signal_deliver(), rseq_handle_notify_resume() and rseq_syscall() to introduce RSEQ support. 1. Call the rseq_handle_notify_resume() function on return to userspace if TIF_NOTIFY_RESUME thread flag is set. 2. Call the rseq_signal_deliver() function to fixup on the pre-signal frame when a signal is delivered on top of a restartable sequence critical section. 3. Check that system calls are not invoked from within rseq critical sections by invoking rseq_signal() from ret_from_syscall(). With CONFIG_DEBUG_RSEQ, such behavior results in termination of the process with SIGSEGV. Signed-off-by: Guo Ren

csky: Implement ptrace regs and stack API

2020-03-08T12:55:14Z

Needed for kprobes support. Copied and adapted from Patrick's patch, but it has been modified for csky's pt_regs. ref: https://lore.kernel.org/linux-riscv/1572919114-3886-2-git-send-email-vincent.chen@sifive.com/raw Signed-off-by: Guo Ren Cc: Patrick Staehlin

csky: Implement copy_thread_tls

2020-02-21T07:43:25Z

This is required for clone3 which passes the TLS value through a struct rather than a register. Cc: Amanieu d'Antras Signed-off-by: Guo Ren

csky: Add PCI support

2020-02-21T07:43:25Z

Add the pci related code for csky arch to support basic pci virtual function, such as qemu virt-pci-9pfs. Signed-off-by: MaJun Signed-off-by: Guo Ren

csky: Cleanup old Kconfig options

2020-02-21T07:43:25Z

CONFIG_CLKSRC_OF is gone since commit bb0eb050a577 ("clocksource/drivers: Rename CLKSRC_OF to TIMER_OF"). The platform already selects TIMER_OF. CONFIG_HAVE_DMA_API_DEBUG is gone since commit 6e88628d03dd ("dma-debug: remove CONFIG_HAVE_DMA_API_DEBUG"). CONFIG_DEFAULT_DEADLINE is gone since commit f382fb0bcef4 ("block: remove legacy IO schedulers"). Signed-off-by: Krzysztof Kozlowski Signed-off-by: Guo Ren