| Message ID | 20200824144429.12641-1-pragnesh.patel@sifive.com |
|---|---|
| Headers | show |
| Series | RISC-V tracing support | expand |
On 8/24/20 10:44 AM, Pragnesh Patel wrote: > This series add a support of tracing for RISC-V arch. > > This series is also available here [1] for testing. > Series depends on [2]. > > [1] https://github.com/pragnesh26992/u-boot/tree/trace > [2] https://patchwork.ozlabs.org/project/uboot/cover/20200729095636.1077054-1-seanga2@gmail.com/ > > How to test this patch: > 1) Enable tracing in "configs/sifive_fu540_defconfig" > CONFIG_TRACE=y > CONFIG_TRACE_BUFFER_SIZE=0x01000000 > CONFIG_TRACE_CALL_DEPTH_LIMIT=15 > CONFIG_CMD_TRACE=y > > 2) make FTRACE=1 sifive_fu540_defconfig > 3) make FTRACE=1 > > Following are the boot messages on FU540 five cores SMP platform: > > U-Boot 2020.10-rc1-02837-g8613dc2e66 (Aug 24 2020 - 20:03:47 +0530) > > CPU: rv64imac > Model: SiFive HiFive Unleashed A00 > DRAM: 8 GiB > trace: enabled > MMC: spi@10050000:mmc@0: 0 > Loading Environment from SPIFlash... SF: Detected is25wp256 with page size 256 Bytes, erase size 4 KiB, total 32 MiB > OK > In: serial@10010000 > Out: serial@10010000 > Err: serial@10010000 > Board serial number should not be 0 !! > Net: > Warning: ethernet@10090000 (eth0) using random MAC address - 92:a1:a7:02:5a:14 > eth0: ethernet@10090000 > Hit any key to stop autoboot: 0 > => trace stats > 177,722 function sites > 37,057,350 function calls > 1 untracked function calls > 1,279,612 traced function calls (36015585 dropped due to overflow) > 19 maximum observed call depth > 15 call depth limit > 37,055,565 calls not traced due to depth > => > > > Pragnesh Patel (3): > riscv: Add timer_get_us() for tracing > riscv: Mark riscv_timer_get_count() and sifive_clint_get_count() with > 'notrace' > riscv: Mark andes_plmt_get_count() with 'notrace' > > arch/riscv/lib/Makefile | 1 + > arch/riscv/lib/andes_plmt.c | 2 +- > arch/riscv/lib/sifive_clint.c | 2 +- > arch/riscv/lib/timer.c | 50 +++++++++++++++++++++++++++++++++++ > drivers/timer/riscv_timer.c | 2 +- > 5 files changed, 54 insertions(+), 3 deletions(-) > create mode 100644 arch/riscv/lib/timer.c > Tested-by: Sean Anderson <seanga2@gmail.com> I tested this on a K210 and had to reduce CONFIG_TRACE_BUFFER_SIZE to 0x100000 (1M) because of its reduced ram. Here is some example output: U-Boot 2020.10-rc1-00164-gbb14d962f5 (Sep 01 2020 - 16:17:43 -0400) DRAM: 8 MiB trace: enabled In: serial@38000000 Out: serial@38000000 Err: serial@38000000 => trace stats 76,948 function sites 82,375,426 function calls 1 untracked function calls 36,075 traced function calls (164135507 dropped due to overflow) 17 maximum observed call depth 15 call depth limit 679,059 calls not traced due to depth => --Sean
> From: Pragnesh Patel [mailto:pragnesh.patel@sifive.com] > Sent: Monday, August 24, 2020 10:44 PM > To: u-boot@lists.denx.de; atish.patra@wdc.com; bmeng.cn@gmail.com; anup.patel@wdc.com; sagar.kadam@sifive.com; Rick Jian-Zhi Chen(陳建志) > Cc: paul.walmsley@sifive.com; Pragnesh Patel > Subject: [PATCH 0/3] RISC-V tracing support > > This series add a support of tracing for RISC-V arch. > > This series is also available here [1] for testing. > Series depends on [2]. > > [1] https://github.com/pragnesh26992/u-boot/tree/trace > [2] https://patchwork.ozlabs.org/project/uboot/cover/20200729095636.1077054-1-seanga2@gmail.com/ > > How to test this patch: > 1) Enable tracing in "configs/sifive_fu540_defconfig" > CONFIG_TRACE=y > CONFIG_TRACE_BUFFER_SIZE=0x01000000 > CONFIG_TRACE_CALL_DEPTH_LIMIT=15 > CONFIG_CMD_TRACE=y > > 2) make FTRACE=1 sifive_fu540_defconfig > 3) make FTRACE=1 > > Following are the boot messages on FU540 five cores SMP platform: > > U-Boot 2020.10-rc1-02837-g8613dc2e66 (Aug 24 2020 - 20:03:47 +0530) > > CPU: rv64imac > Model: SiFive HiFive Unleashed A00 > DRAM: 8 GiB > trace: enabled > MMC: spi@10050000:mmc@0: 0 > Loading Environment from SPIFlash... SF: Detected is25wp256 with page size 256 Bytes, erase size 4 KiB, total 32 MiB > OK > In: serial@10010000 > Out: serial@10010000 > Err: serial@10010000 > Board serial number should not be 0 !! > Net: > Warning: ethernet@10090000 (eth0) using random MAC address - 92:a1:a7:02:5a:14 > eth0: ethernet@10090000 > Hit any key to stop autoboot: 0 > => trace stats > 177,722 function sites > 37,057,350 function calls > 1 untracked function calls > 1,279,612 traced function calls (36015585 dropped due to overflow) > 19 maximum observed call depth > 15 call depth limit > 37,055,565 calls not traced due to depth > => > > > Pragnesh Patel (3): > riscv: Add timer_get_us() for tracing > riscv: Mark riscv_timer_get_count() and sifive_clint_get_count() with > 'notrace' > riscv: Mark andes_plmt_get_count() with 'notrace' > > arch/riscv/lib/Makefile | 1 + > arch/riscv/lib/andes_plmt.c | 2 +- > arch/riscv/lib/sifive_clint.c | 2 +- > arch/riscv/lib/timer.c | 50 +++++++++++++++++++++++++++++++++++ > drivers/timer/riscv_timer.c | 2 +- > 5 files changed, 54 insertions(+), 3 deletions(-) > create mode 100644 arch/riscv/lib/timer.c > > -- Tested-by: Rick Chen <rick@andestech.com> I have verified it in AE350 platfom as below: U-Boot 2020.10-rc1-05918-g658fb7e-dirty (Sep 03 2020 - 08:08:28 +0800) DRAM: 1 GiB trace: enabled Flash: 64 MiB MMC: mmc@f0e00000: 0 Loading Environment from SPIFlash... SF: Detected mx25u1635e with page size 256 Bytes, erase size 4 KiB, total 2 MiB OK In: serial@f0300000 Out: serial@f0300000 Err: serial@f0300000 Net: no alias for ethernet0 Warning: mac@e0100000 (eth0) using random MAC address - 2a:6c:3c:57:4b:30 eth0: mac@e0100000 Hit any key to stop autoboot: 0 RISC-V # RISC-V # trace stats 166,074 function sites 1,071,417 function calls 1 untracked function calls 1,030,665 traced function calls 19 maximum observed call depth 15 call depth limit 1,145,728 calls not traced due to depth RISC-V # trace stats 166,074 function sites 2,552,905 function calls 1 untracked function calls 1,287,378 traced function calls (958047 dropped due to overflow) 19 maximum observed call depth 15 call depth limit 2,900,311 calls not traced due to depth RISC-V # Thanks, Rick
This series add a support of tracing for RISC-V arch. This series is also available here [1] for testing. Series depends on [2]. [1] https://github.com/pragnesh26992/u-boot/tree/trace [2] https://patchwork.ozlabs.org/project/uboot/cover/20200729095636.1077054-1-seanga2@gmail.com/ How to test this patch: 1) Enable tracing in "configs/sifive_fu540_defconfig" CONFIG_TRACE=y CONFIG_TRACE_BUFFER_SIZE=0x01000000 CONFIG_TRACE_CALL_DEPTH_LIMIT=15 CONFIG_CMD_TRACE=y 2) make FTRACE=1 sifive_fu540_defconfig 3) make FTRACE=1 Following are the boot messages on FU540 five cores SMP platform: U-Boot 2020.10-rc1-02837-g8613dc2e66 (Aug 24 2020 - 20:03:47 +0530) CPU: rv64imac Model: SiFive HiFive Unleashed A00 DRAM: 8 GiB trace: enabled MMC: spi@10050000:mmc@0: 0 Loading Environment from SPIFlash... SF: Detected is25wp256 with page size 256 Bytes, erase size 4 KiB, total 32 MiB OK In: serial@10010000 Out: serial@10010000 Err: serial@10010000 Board serial number should not be 0 !! Net: Warning: ethernet@10090000 (eth0) using random MAC address - 92:a1:a7:02:5a:14 eth0: ethernet@10090000 Hit any key to stop autoboot: 0 => trace stats 177,722 function sites 37,057,350 function calls 1 untracked function calls 1,279,612 traced function calls (36015585 dropped due to overflow) 19 maximum observed call depth 15 call depth limit 37,055,565 calls not traced due to depth => Pragnesh Patel (3): riscv: Add timer_get_us() for tracing riscv: Mark riscv_timer_get_count() and sifive_clint_get_count() with 'notrace' riscv: Mark andes_plmt_get_count() with 'notrace' arch/riscv/lib/Makefile | 1 + arch/riscv/lib/andes_plmt.c | 2 +- arch/riscv/lib/sifive_clint.c | 2 +- arch/riscv/lib/timer.c | 50 +++++++++++++++++++++++++++++++++++ drivers/timer/riscv_timer.c | 2 +- 5 files changed, 54 insertions(+), 3 deletions(-) create mode 100644 arch/riscv/lib/timer.c