drm/msm: workaround for missing irq on a306/8x16 (d735fdc3) · Commits · e / devices / android_kernel_teracube_2e

drivers/gpu/drm/msm/adreno/adreno_gpu.c

+11 −0

Original line number	Original line	Diff line number	Diff line
	@@ -176,6 +176,17 @@ int adreno_submit(struct msm_gpu gpu, struct msm_gem_submit submit,
	OUT_PKT3(ring, CP_INTERRUPT, 1);		OUT_PKT3(ring, CP_INTERRUPT, 1);
	OUT_RING(ring, 0x80000000);		OUT_RING(ring, 0x80000000);

			/* Workaround for missing irq issue on 8x16/a306. Unsure if the
			* root cause is a platform issue or some a306 quirk, but this
			* keeps things humming along:
			*/
			if (adreno_is_a306(adreno_gpu)) {
			OUT_PKT3(ring, CP_WAIT_FOR_IDLE, 1);
			OUT_RING(ring, 0x00000000);
			OUT_PKT3(ring, CP_INTERRUPT, 1);
			OUT_RING(ring, 0x80000000);
			}

	#if 0		#if 0
	if (adreno_is_a3xx(adreno_gpu)) {		if (adreno_is_a3xx(adreno_gpu)) {
	/* Dummy set-constant to trigger context rollover */		/* Dummy set-constant to trigger context rollover */