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98a93b0b56
linux/arch/riscv
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Mao Han 98a93b0b56 riscv: Add support for perf registers sampling 
This patch implements the perf registers sampling and validation API
for the riscv arch. The valid registers and their register ID are
defined in perf_regs.h. Perf tool can backtrace in userspace with
unwind library and the registers/user stack dump support.

Signed-off-by: Mao Han <han_mao@c-sky.com>
Cc: Paul Walmsley <paul.walmsley@sifive.com>
Cc: Greentime Hu <green.hu@gmail.com>
Cc: Palmer Dabbelt <palmer@sifive.com>
Cc: linux-riscv <linux-riscv@lists.infradead.org>
Cc: Christoph Hellwig <hch@lst.de>
Cc: Guo Ren <guoren@kernel.org>
Tested-by: Greentime Hu <greentime.hu@sifive.com>
[paul.walmsley@sifive.com: minor patch description fix]
Signed-off-by: Paul Walmsley <paul.walmsley@sifive.com>
2019-09-05 00:48:58 -07:00
..
boot riscv: dts: fu540-c000: drop "timebase-frequency" 2019-07-31 12:26:10 -07:00
configs riscv: defconfig: Update the defconfig 2019-08-13 19:26:42 -07:00
include riscv: Add support for perf registers sampling 2019-09-05 00:48:58 -07:00
kernel riscv: Add support for perf registers sampling 2019-09-05 00:48:58 -07:00
lib riscv: Using CSR numbers to access CSRs 2019-08-30 11:04:19 -07:00
mm RISC-V: Implement sparsemem 2019-08-30 11:10:37 -07:00
net bpf, riscv: Enable zext optimization for more RV64G ALU ops 2019-07-05 23:55:41 +02:00
Kbuild riscv: add arch/riscv/Kbuild 2019-08-30 17:34:00 -07:00
Kconfig riscv: Add support for perf registers sampling 2019-09-05 00:48:58 -07:00
Kconfig.debug RISC-V: Remove EARLY_PRINTK support 2018-12-17 10:23:46 -08:00
Kconfig.socs riscv: select SiFive platform drivers with SOC_SIFIVE 2019-07-01 13:20:01 -07:00
Makefile riscv: Add perf callchain support 2019-09-04 12:43:00 -07:00