diff options
| author | Krystian Pradzynski <krystian.pradzynski@linux.intel.com> | 2023-10-28 18:59:29 +0300 |
|---|---|---|
| committer | Stanislaw Gruszka <stanislaw.gruszka@linux.intel.com> | 2023-10-31 17:49:35 +0300 |
| commit | bfc87f90614523612ae7e94d06798e82bc78ade6 (patch) | |
| tree | 3a4154efa24cfa8e643ef3a156822138e79adf4f /drivers/accel/ivpu/ivpu_hw_37xx.c | |
| parent | 9d7c8c066916f231ca0ed4e4fce6c4b58ca3e451 (diff) | |
| download | linux-bfc87f90614523612ae7e94d06798e82bc78ade6.tar.xz | |
accel/ivpu/40xx: Allow to change profiling frequency
Profiling freq is a debug firmware feature. It switches default clock
to higher resolution for fine-grained and more accurate firmware task
profiling. We already configure it during boot up of VPU4.
Add debugfs knob and helpers per HW generation that allow to change it.
For vpu37xx the implementation is empty as profiling frequency can only
be changed on VPU4 or newer.
Signed-off-by: Krystian Pradzynski <krystian.pradzynski@linux.intel.com>
Reviewed-by: Stanislaw Gruszka <stanislaw.gruszka@linux.intel.com>
Reviewed-by: Jeffrey Hugo <quic_jhugo@quicinc.com>
Signed-off-by: Stanislaw Gruszka <stanislaw.gruszka@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20231028155936.1183342-2-stanislaw.gruszka@linux.intel.com
Diffstat (limited to 'drivers/accel/ivpu/ivpu_hw_37xx.c')
| -rw-r--r-- | drivers/accel/ivpu/ivpu_hw_37xx.c | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/drivers/accel/ivpu/ivpu_hw_37xx.c b/drivers/accel/ivpu/ivpu_hw_37xx.c index 1c8c5715095b..81f81046d39a 100644 --- a/drivers/accel/ivpu/ivpu_hw_37xx.c +++ b/drivers/accel/ivpu/ivpu_hw_37xx.c @@ -29,6 +29,7 @@ #define PLL_REF_CLK_FREQ (50 * 1000000) #define PLL_SIMULATION_FREQ (10 * 1000000) +#define PLL_PROF_CLK_FREQ (38400 * 1000) #define PLL_DEFAULT_EPP_VALUE 0x80 #define TIM_SAFE_ENABLE 0xf1d0dead @@ -769,6 +770,16 @@ static void ivpu_hw_37xx_wdt_disable(struct ivpu_device *vdev) REGV_WR32(VPU_37XX_CPU_SS_TIM_GEN_CONFIG, val); } +static u32 ivpu_hw_37xx_profiling_freq_get(struct ivpu_device *vdev) +{ + return PLL_PROF_CLK_FREQ; +} + +static void ivpu_hw_37xx_profiling_freq_drive(struct ivpu_device *vdev, bool enable) +{ + /* Profiling freq - is a debug feature. Unavailable on VPU 37XX. */ +} + static u32 ivpu_hw_37xx_pll_to_freq(u32 ratio, u32 config) { u32 pll_clock = PLL_REF_CLK_FREQ * ratio; @@ -1012,6 +1023,8 @@ const struct ivpu_hw_ops ivpu_hw_37xx_ops = { .boot_fw = ivpu_hw_37xx_boot_fw, .wdt_disable = ivpu_hw_37xx_wdt_disable, .diagnose_failure = ivpu_hw_37xx_diagnose_failure, + .profiling_freq_get = ivpu_hw_37xx_profiling_freq_get, + .profiling_freq_drive = ivpu_hw_37xx_profiling_freq_drive, .reg_pll_freq_get = ivpu_hw_37xx_reg_pll_freq_get, .reg_telemetry_offset_get = ivpu_hw_37xx_reg_telemetry_offset_get, .reg_telemetry_size_get = ivpu_hw_37xx_reg_telemetry_size_get, |