Commit 5ce511ad authored by Tvrtko Ursulin's avatar Tvrtko Ursulin Committed by Lucas De Marchi
Browse files

drm/xe: Track number of written dwords from workaround batch buffer emission 



Indirect context setup will need to get to the number of written dwords.
Lets add it as an output parameter so it can be accessed from the finish
helper regardless of whether code is writing directly or via an shadow
buffer.

Signed-off-by: default avatarTvrtko Ursulin <tvrtko.ursulin@igalia.com>
Cc: Lucas De Marchi <lucas.demarchi@intel.com>
Reviewed-by: default avatarLucas De Marchi <lucas.demarchi@intel.com>
Link: https://lore.kernel.org/r/20250711160153.49833-5-tvrtko.ursulin@igalia.com


Signed-off-by: default avatarLucas De Marchi <lucas.demarchi@intel.com>
parent 1ec31d35

drivers/gpu/drm/xe/xe_lrc.c

+4 −1
Original line number Diff line number Diff line
@@ -991,6 +991,7 @@ struct bo_setup_state { 
	/* State: */

	u32			*buffer;

	u32			*ptr;

	unsigned int		written;

};



static int setup_bo(struct bo_setup_state *state)
@@ -1023,6 +1024,7 @@ static int setup_bo(struct bo_setup_state *state) 
			goto fail;



		state->ptr += len;

		state->written += len;

	}



	return 0;
@@ -1039,7 +1041,7 @@ static void finish_bo(struct bo_setup_state *state) 


	xe_map_memcpy_to(gt_to_xe(state->lrc->gt), &state->lrc->bo->vmap,

			 state->offset, state->buffer,

			 (state->ptr - state->buffer) * sizeof(u32));

			 state->written * sizeof(u32));

	kfree(state->buffer);

}
@@ -1063,6 +1065,7 @@ static int setup_wa_bb(struct xe_lrc *lrc, struct xe_hw_engine *hwe) 
		return ret;



	*state.ptr++ = MI_BATCH_BUFFER_END;

	state.written++;



	finish_bo(&state);