Commit 82458736 authored by Ville Syrjälä's avatar Ville Syrjälä
Browse files

drm/i915/flipq: Add intel_flipq_dump() 



Add a function for dumping the entries of a specific flip queue.

Reviewed-by: default avatarUma Shankar <uma.shankar@intel.com>
Signed-off-by: default avatarVille Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20250624170049.27284-9-ville.syrjala@linux.intel.com
parent a47828f3

drivers/gpu/drm/i915/display/intel_flipq.c

+46 −0
Original line number Diff line number Diff line
@@ -205,6 +205,52 @@ static int intel_flipq_exec_time_lines(const struct intel_crtc_state *crtc_state 
					intel_flipq_exec_time_us(display));

}



void intel_flipq_dump(struct intel_crtc *crtc,

		      enum intel_flipq_id flipq_id)

{

	struct intel_display *display = to_intel_display(crtc);

	struct intel_flipq *flipq = &crtc->flipq[flipq_id];

	u32 tmp;



	drm_dbg_kms(display->drm,

		    "[CRTC:%d:%s] FQ %d @ 0x%x: ",

		    crtc->base.base.id, crtc->base.name, flipq_id,

		    flipq->start_mmioaddr);

	for (int i = 0 ; i < intel_flipq_size_dw(flipq_id); i++) {

		printk(KERN_CONT " 0x%08x",

		       intel_de_read(display, PIPEDMC_FQ_RAM(flipq->start_mmioaddr, i)));

		if (i % intel_flipq_elem_size_dw(flipq_id) == intel_flipq_elem_size_dw(flipq_id) - 1)

			printk(KERN_CONT "\n");

	}



	drm_dbg_kms(display->drm,

		    "[CRTC:%d:%s] FQ %d: chp=0x%x, hp=0x%x\n",

		    crtc->base.base.id, crtc->base.name, flipq_id,

		    intel_de_read(display, PIPEDMC_FPQ_CHP(crtc->pipe, flipq_id)),

		    intel_de_read(display, PIPEDMC_FPQ_HP(crtc->pipe, flipq_id)));



	drm_dbg_kms(display->drm,

		    "[CRTC:%d:%s] FQ %d: current head %d\n",

		    crtc->base.base.id, crtc->base.name, flipq_id,

		    intel_flipq_current_head(crtc, flipq_id));



	drm_dbg_kms(display->drm,

		    "[CRTC:%d:%s] flip queue timestamp: 0x%x\n",

		    crtc->base.base.id, crtc->base.name,

		    intel_de_read(display, PIPEDMC_FPQ_TS(crtc->pipe)));



	tmp = intel_de_read(display, PIPEDMC_FPQ_ATOMIC_TP(crtc->pipe));



	drm_dbg_kms(display->drm,

		    "[CRTC:%d:%s] flip queue atomic tails: P3 %d, P2 %d, P1 %d, G %d, F %d\n",

		    crtc->base.base.id, crtc->base.name,

		    REG_FIELD_GET(PIPEDMC_FPQ_PLANEQ_3_TP_MASK, tmp),

		    REG_FIELD_GET(PIPEDMC_FPQ_PLANEQ_2_TP_MASK, tmp),

		    REG_FIELD_GET(PIPEDMC_FPQ_PLANEQ_1_TP_MASK, tmp),

		    REG_FIELD_GET(PIPEDMC_FPQ_GENERALQ_TP_MASK, tmp),

		    REG_FIELD_GET(PIPEDMC_FPQ_FASTQ_TP_MASK, tmp));

}



void intel_flipq_reset(struct intel_display *display, enum pipe pipe)

{

	struct intel_crtc *crtc = intel_crtc_for_pipe(display, pipe);

drivers/gpu/drm/i915/display/intel_flipq.h

+2 −0
Original line number Diff line number Diff line
@@ -31,5 +31,7 @@ void intel_flipq_add(struct intel_crtc *crtc, 
int intel_flipq_exec_time_us(struct intel_display *display);

void intel_flipq_wait_dmc_halt(struct intel_dsb *dsb, struct intel_crtc *crtc);

void intel_flipq_unhalt_dmc(struct intel_dsb *dsb, struct intel_crtc *crtc);

void intel_flipq_dump(struct intel_crtc *crtc,

		      enum intel_flipq_id flip_queue_id);



#endif /* __INTEL_FLIPQ_H__ */