diff options
| author | George Shen <george.shen@amd.com> | 2024-03-08 15:08:09 -0500 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2024-04-09 22:03:13 -0400 |
| commit | beb9764aad3c2b2c14bf957221f42e326d097680 (patch) | |
| tree | 860f88a19503cd67e364eb670a3642cd657cc763 /drivers/gpu/drm/amd/display/dc/clk_mgr | |
| parent | 14f9db4271ef5c78ae87237af844f03fb192d139 (diff) | |
drm/amd/display: Add dummy interface for tracing DCN32 SMU messages
[Why/How]
Some issues may require a trace of the previous SMU messages from DC to
understand the context and aid in debugging. Actual logging to be
implemented when needed.
Reviewed-by: Josip Pavic <josip.pavic@amd.com>
Acked-by: Roman Li <roman.li@amd.com>
Signed-off-by: George Shen <george.shen@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers/gpu/drm/amd/display/dc/clk_mgr')
| -rw-r--r-- | drivers/gpu/drm/amd/display/dc/clk_mgr/dcn30/dcn30_clk_mgr_smu_msg.c | 5 | ||||
| -rw-r--r-- | drivers/gpu/drm/amd/display/dc/clk_mgr/dcn32/dcn32_clk_mgr_smu_msg.c | 9 |
2 files changed, 13 insertions, 1 deletions
diff --git a/drivers/gpu/drm/amd/display/dc/clk_mgr/dcn30/dcn30_clk_mgr_smu_msg.c b/drivers/gpu/drm/amd/display/dc/clk_mgr/dcn30/dcn30_clk_mgr_smu_msg.c index bdbf18306698..64c2b88dfc9f 100644 --- a/drivers/gpu/drm/amd/display/dc/clk_mgr/dcn30/dcn30_clk_mgr_smu_msg.c +++ b/drivers/gpu/drm/amd/display/dc/clk_mgr/dcn30/dcn30_clk_mgr_smu_msg.c @@ -54,6 +54,7 @@ */ static uint32_t dcn30_smu_wait_for_response(struct clk_mgr_internal *clk_mgr, unsigned int delay_us, unsigned int max_retries) { + const uint32_t initial_max_retries = max_retries; uint32_t reg = 0; do { @@ -69,7 +70,7 @@ static uint32_t dcn30_smu_wait_for_response(struct clk_mgr_internal *clk_mgr, un /* handle DALSMC_Result_CmdRejectedBusy? */ - /* Log? */ + TRACE_SMU_DELAY(delay_us * (initial_max_retries - max_retries), clk_mgr->base.ctx); return reg; } @@ -89,6 +90,8 @@ static bool dcn30_smu_send_msg_with_param(struct clk_mgr_internal *clk_mgr, uint /* Trigger the message transaction by writing the message ID */ REG_WRITE(DAL_MSG_REG, msg_id); + TRACE_SMU_MSG(msg_id, param_in, clk_mgr->base.ctx); + result = dcn30_smu_wait_for_response(clk_mgr, 10, 200000); if (IS_SMU_TIMEOUT(result)) { diff --git a/drivers/gpu/drm/amd/display/dc/clk_mgr/dcn32/dcn32_clk_mgr_smu_msg.c b/drivers/gpu/drm/amd/display/dc/clk_mgr/dcn32/dcn32_clk_mgr_smu_msg.c index df244b175fdb..f2f60478b1a6 100644 --- a/drivers/gpu/drm/amd/display/dc/clk_mgr/dcn32/dcn32_clk_mgr_smu_msg.c +++ b/drivers/gpu/drm/amd/display/dc/clk_mgr/dcn32/dcn32_clk_mgr_smu_msg.c @@ -49,6 +49,7 @@ */ static uint32_t dcn32_smu_wait_for_response(struct clk_mgr_internal *clk_mgr, unsigned int delay_us, unsigned int max_retries) { + const uint32_t initial_max_retries = max_retries; uint32_t reg = 0; do { @@ -62,6 +63,8 @@ static uint32_t dcn32_smu_wait_for_response(struct clk_mgr_internal *clk_mgr, un udelay(delay_us); } while (max_retries--); + TRACE_SMU_DELAY(delay_us * (initial_max_retries - max_retries), clk_mgr->base.ctx); + return reg; } @@ -79,6 +82,8 @@ static bool dcn32_smu_send_msg_with_param(struct clk_mgr_internal *clk_mgr, uint /* Trigger the message transaction by writing the message ID */ REG_WRITE(DAL_MSG_REG, msg_id); + TRACE_SMU_MSG(msg_id, param_in, clk_mgr->base.ctx); + /* Wait for response */ if (dcn32_smu_wait_for_response(clk_mgr, 10, 200000) == DALSMC_Result_OK) { if (param_out) @@ -115,6 +120,8 @@ static uint32_t dcn32_smu_wait_for_response_delay(struct clk_mgr_internal *clk_m *total_delay_us += delay_us; } while (max_retries--); + TRACE_SMU_DELAY(*total_delay_us, clk_mgr->base.ctx); + return reg; } @@ -135,6 +142,8 @@ static bool dcn32_smu_send_msg_with_param_delay(struct clk_mgr_internal *clk_mgr /* Trigger the message transaction by writing the message ID */ REG_WRITE(DAL_MSG_REG, msg_id); + TRACE_SMU_MSG(msg_id, param_in, clk_mgr->base.ctx); + /* Wait for response */ if (dcn32_smu_wait_for_response_delay(clk_mgr, 10, 200000, &delay2_us) == DALSMC_Result_OK) { if (param_out) |