Provide atomic_print_state callback to the DPU's private object. This way the debugfs/dri/0/state will also include RM's internal state. Example output (RB5 board, HDMI and writeback encoder enabled) resource mapping: pingpong=31 36 # # # # - - - - - mixer=31 36 # # # # - ctl=# # 31 36 # # dspp=# # # # dsc=# # # # - - cdm=# Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@xxxxxxxxxx> --- Changes in v5: - Extracted the common helper for printing RM state - Changed the code to print '#' for unused/unmapped blocks (Abhinav) - Link to v4: https://lore.kernel.org/r/20240219-fd-rm-state-v4-1-b47f14ef27c2@xxxxxxxxxx Changes in v4: - Split the patch from the virual wide planes series - Reworked the output format - Added the CDM block into the dump --- drivers/gpu/drm/msm/disp/dpu1/dpu_kms.c | 12 +++++++ drivers/gpu/drm/msm/disp/dpu1/dpu_kms.h | 2 ++ drivers/gpu/drm/msm/disp/dpu1/dpu_rm.c | 56 +++++++++++++++++++++++++++++++++ drivers/gpu/drm/msm/disp/dpu1/dpu_rm.h | 8 +++++ 4 files changed, 78 insertions(+) diff --git a/drivers/gpu/drm/msm/disp/dpu1/dpu_kms.c b/drivers/gpu/drm/msm/disp/dpu1/dpu_kms.c index 723cc1d82143..9f3697e1eacb 100644 --- a/drivers/gpu/drm/msm/disp/dpu1/dpu_kms.c +++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_kms.c @@ -353,9 +353,18 @@ static void dpu_kms_global_destroy_state(struct drm_private_obj *obj, kfree(dpu_state); } +static void dpu_kms_global_print_state(struct drm_printer *p, + const struct drm_private_state *state) +{ + const struct dpu_global_state *global_state = to_dpu_global_state(state); + + dpu_rm_print_state(p, global_state); +} + static const struct drm_private_state_funcs dpu_kms_global_state_funcs = { .atomic_duplicate_state = dpu_kms_global_duplicate_state, .atomic_destroy_state = dpu_kms_global_destroy_state, + .atomic_print_state = dpu_kms_global_print_state, }; static int dpu_kms_global_obj_init(struct dpu_kms *dpu_kms) @@ -371,6 +380,9 @@ static int dpu_kms_global_obj_init(struct dpu_kms *dpu_kms) drm_atomic_private_obj_init(dpu_kms->dev, &dpu_kms->global_state, &state->base, &dpu_kms_global_state_funcs); + + state->rm = &dpu_kms->rm; + return 0; } diff --git a/drivers/gpu/drm/msm/disp/dpu1/dpu_kms.h b/drivers/gpu/drm/msm/disp/dpu1/dpu_kms.h index d1207f4ec3ae..2512c9bd08df 100644 --- a/drivers/gpu/drm/msm/disp/dpu1/dpu_kms.h +++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_kms.h @@ -131,6 +131,8 @@ struct vsync_info { struct dpu_global_state { struct drm_private_state base; + struct dpu_rm *rm; + uint32_t pingpong_to_enc_id[PINGPONG_MAX - PINGPONG_0]; uint32_t mixer_to_enc_id[LM_MAX - LM_0]; uint32_t ctl_to_enc_id[CTL_MAX - CTL_0]; diff --git a/drivers/gpu/drm/msm/disp/dpu1/dpu_rm.c b/drivers/gpu/drm/msm/disp/dpu1/dpu_rm.c index 724537ab776d..1a56ddca536d 100644 --- a/drivers/gpu/drm/msm/disp/dpu1/dpu_rm.c +++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_rm.c @@ -634,3 +634,59 @@ int dpu_rm_get_assigned_resources(struct dpu_rm *rm, return num_blks; } + +static void dpu_rm_print_state_helper(struct drm_printer *p, + struct dpu_hw_blk *blk, + uint32_t mapping) +{ + if (!blk) + drm_puts(p, "- "); + else if (!mapping) + drm_puts(p, "# "); + else + drm_printf(p, "%d ", mapping); +} + + +void dpu_rm_print_state(struct drm_printer *p, + const struct dpu_global_state *global_state) +{ + const struct dpu_rm *rm = global_state->rm; + int i; + + drm_puts(p, "resource mapping:\n"); + drm_puts(p, "\tpingpong="); + for (i = 0; i < ARRAY_SIZE(global_state->pingpong_to_enc_id); i++) + dpu_rm_print_state_helper(p, rm->pingpong_blks[i], + global_state->pingpong_to_enc_id[i]); + drm_puts(p, "\n"); + + drm_puts(p, "\tmixer="); + for (i = 0; i < ARRAY_SIZE(global_state->mixer_to_enc_id); i++) + dpu_rm_print_state_helper(p, rm->mixer_blks[i], + global_state->mixer_to_enc_id[i]); + drm_puts(p, "\n"); + + drm_puts(p, "\tctl="); + for (i = 0; i < ARRAY_SIZE(global_state->ctl_to_enc_id); i++) + dpu_rm_print_state_helper(p, rm->ctl_blks[i], + global_state->ctl_to_enc_id[i]); + drm_puts(p, "\n"); + + drm_puts(p, "\tdspp="); + for (i = 0; i < ARRAY_SIZE(global_state->dspp_to_enc_id); i++) + dpu_rm_print_state_helper(p, rm->dspp_blks[i], + global_state->dspp_to_enc_id[i]); + drm_puts(p, "\n"); + + drm_puts(p, "\tdsc="); + for (i = 0; i < ARRAY_SIZE(global_state->dsc_to_enc_id); i++) + dpu_rm_print_state_helper(p, rm->dsc_blks[i], + global_state->dsc_to_enc_id[i]); + drm_puts(p, "\n"); + + drm_puts(p, "\tcdm="); + dpu_rm_print_state_helper(p, rm->cdm_blk, + global_state->cdm_to_enc_id); + drm_puts(p, "\n"); +} diff --git a/drivers/gpu/drm/msm/disp/dpu1/dpu_rm.h b/drivers/gpu/drm/msm/disp/dpu1/dpu_rm.h index e3f83ebc656b..e63db8ace6b9 100644 --- a/drivers/gpu/drm/msm/disp/dpu1/dpu_rm.h +++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_rm.h @@ -89,6 +89,14 @@ int dpu_rm_get_assigned_resources(struct dpu_rm *rm, struct dpu_global_state *global_state, uint32_t enc_id, enum dpu_hw_blk_type type, struct dpu_hw_blk **blks, int blks_size); +/** + * dpu_rm_print_state - output the RM private state + * @p: DRM printer + * @global_state: global state + */ +void dpu_rm_print_state(struct drm_printer *p, + const struct dpu_global_state *global_state); + /** * dpu_rm_get_intf - Return a struct dpu_hw_intf instance given it's index. * @rm: DPU Resource Manager handle --- base-commit: 41c177cf354126a22443b5c80cec9fdd313e67e1 change-id: 20240219-fd-rm-state-bd1218954b78 Best regards, -- Dmitry Baryshkov <dmitry.baryshkov@xxxxxxxxxx>
