Module: Mesa Branch: master Commit: 5b5cd18853c1d5ff0b159ea6df78674532b78b18 URL: http://cgit.freedesktop.org/mesa/mesa/commit/?id=5b5cd18853c1d5ff0b159ea6df78674532b78b18
Author: Samuel Pitoiset <samuel.pitoi...@gmail.com> Date: Thu Jan 21 10:14:48 2021 +0100 radv: inhibit clock gating when tracing with SQTT Cc: <mesa-sta...@lists.freedesktop.org> Signed-off-by: Samuel Pitoiset <samuel.pitoi...@gmail.com> Reviewed-by: Bas Nieuwenhuizen <b...@basnieuwenhuizen.nl> Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/8616> --- src/amd/vulkan/radv_sqtt.c | 23 +++++++++++++++++++++++ 1 file changed, 23 insertions(+) diff --git a/src/amd/vulkan/radv_sqtt.c b/src/amd/vulkan/radv_sqtt.c index ecd83fed728..a8f1ccc5385 100644 --- a/src/amd/vulkan/radv_sqtt.c +++ b/src/amd/vulkan/radv_sqtt.c @@ -357,6 +357,19 @@ radv_emit_spi_config_cntl(struct radv_device *device, } } +static void +radv_emit_inhibit_clockgating(struct radv_device *device, + struct radeon_cmdbuf *cs, bool inhibit) +{ + if (device->physical_device->rad_info.chip_class >= GFX10) { + radeon_set_uconfig_reg(cs, R_037390_RLC_PERFMON_CLK_CNTL, + S_037390_PERFMON_CLOCK_STATE(inhibit)); + } else if (device->physical_device->rad_info.chip_class >= GFX8) { + radeon_set_uconfig_reg(cs, R_0372FC_RLC_PERFMON_CLK_CNTL, + S_0372FC_PERFMON_CLOCK_STATE(inhibit)); + } +} + static void radv_emit_wait_for_idle(struct radv_device *device, struct radeon_cmdbuf *cs, int family) @@ -407,6 +420,11 @@ radv_thread_trace_init_cs(struct radv_device *device) device->thread_trace.start_cs[family], family); + /* Disable clock gating before starting SQTT. */ + radv_emit_inhibit_clockgating(device, + device->thread_trace.start_cs[family], + true); + /* Enable SQG events that collects thread trace data. */ radv_emit_spi_config_cntl(device, device->thread_trace.start_cs[family], @@ -456,6 +474,11 @@ radv_thread_trace_init_cs(struct radv_device *device) device->thread_trace.stop_cs[family], false); + /* Restore previous state by re-enabling clock gating. */ + radv_emit_inhibit_clockgating(device, + device->thread_trace.stop_cs[family], + false); + result = ws->cs_finalize(device->thread_trace.stop_cs[family]); if (result != VK_SUCCESS) return; _______________________________________________ mesa-commit mailing list mesa-commit@lists.freedesktop.org https://lists.freedesktop.org/mailman/listinfo/mesa-commit
