freedreno/a5xx: gmem bypass mode

Signed-off-by: Rob Clark <[email protected]>

1 files changed, 72 insertions, 0 deletions

diff --git a/src/gallium/drivers/freedreno/a5xx/fd5_gmem.c b/src/gallium/drivers/freedreno/a5xx/fd5_gmem.c
index f505733c3c3..1b6b784a252 100644
--- a/src/gallium/drivers/freedreno/a5xx/fd5_gmem.c
+++ b/src/gallium/drivers/freedreno/a5xx/fd5_gmem.c
@@ -469,6 +469,77 @@ fd5_emit_tile_fini(struct fd_batch *batch)
 	fd5_set_render_mode(batch->ctx, batch->gmem, BYPASS);
 }
 
+static void
+fd5_emit_sysmem_prep(struct fd_batch *batch)
+{
+	struct pipe_framebuffer_state *pfb = &batch->framebuffer;
+	struct fd_ringbuffer *ring = batch->gmem;
+
+	fd5_emit_restore(batch, ring);
+
+	OUT_PKT7(ring, CP_EVENT_WRITE, 1);
+	OUT_RING(ring, UNK_26);
+
+	OUT_PKT7(ring, CP_SKIP_IB2_ENABLE_GLOBAL, 1);
+	OUT_RING(ring, 0x0);
+
+	OUT_PKT4(ring, REG_A5XX_PC_POWER_CNTL, 1);
+	OUT_RING(ring, 0x00000003);   /* PC_POWER_CNTL */
+
+	OUT_PKT4(ring, REG_A5XX_VFD_POWER_CNTL, 1);
+	OUT_RING(ring, 0x00000003);   /* VFD_POWER_CNTL */
+
+	/* 0x10000000 for BYPASS.. 0x7c13c080 for GMEM: */
+	fd_wfi(batch, ring);
+	OUT_PKT4(ring, REG_A5XX_RB_CCU_CNTL, 1);
+	OUT_RING(ring, 0x10000000);   /* RB_CCU_CNTL */
+
+	OUT_PKT4(ring, REG_A5XX_GRAS_SC_WINDOW_SCISSOR_TL, 2);
+	OUT_RING(ring, A5XX_GRAS_SC_WINDOW_SCISSOR_TL_X(0) |
+			A5XX_GRAS_SC_WINDOW_SCISSOR_TL_Y(0));
+	OUT_RING(ring, A5XX_GRAS_SC_WINDOW_SCISSOR_BR_X(pfb->width - 1) |
+			A5XX_GRAS_SC_WINDOW_SCISSOR_BR_Y(pfb->height - 1));
+
+	OUT_PKT4(ring, REG_A5XX_RB_RESOLVE_CNTL_1, 2);
+	OUT_RING(ring, A5XX_RB_RESOLVE_CNTL_1_X(0) |
+			A5XX_RB_RESOLVE_CNTL_1_Y(0));
+	OUT_RING(ring, A5XX_RB_RESOLVE_CNTL_2_X(pfb->width - 1) |
+			A5XX_RB_RESOLVE_CNTL_2_Y(pfb->height - 1));
+
+	OUT_PKT4(ring, REG_A5XX_RB_WINDOW_OFFSET, 1);
+	OUT_RING(ring, A5XX_RB_WINDOW_OFFSET_X(0) |
+			A5XX_RB_WINDOW_OFFSET_Y(0));
+
+	OUT_PKT7(ring, CP_SET_VISIBILITY_OVERRIDE, 1);
+	OUT_RING(ring, 0x1);
+
+	OUT_PKT4(ring, REG_A5XX_RB_CNTL, 1);
+	OUT_RING(ring, A5XX_RB_CNTL_WIDTH(0) |
+			A5XX_RB_CNTL_HEIGHT(0) |
+			A5XX_RB_CNTL_BYPASS);
+
+	patch_draws(batch, IGNORE_VISIBILITY);
+
+	emit_zs(ring, pfb->zsbuf, NULL);
+	emit_mrt(ring, pfb->nr_cbufs, pfb->cbufs, NULL);
+
+	// TODO MSAA
+	OUT_PKT4(ring, REG_A5XX_TPL1_TP_RAS_MSAA_CNTL, 2);
+	OUT_RING(ring, A5XX_TPL1_TP_RAS_MSAA_CNTL_SAMPLES(MSAA_ONE));
+	OUT_RING(ring, A5XX_TPL1_TP_DEST_MSAA_CNTL_SAMPLES(MSAA_ONE) |
+			A5XX_TPL1_TP_DEST_MSAA_CNTL_MSAA_DISABLE);
+
+	OUT_PKT4(ring, REG_A5XX_RB_RAS_MSAA_CNTL, 2);
+	OUT_RING(ring, A5XX_RB_RAS_MSAA_CNTL_SAMPLES(MSAA_ONE));
+	OUT_RING(ring, A5XX_RB_DEST_MSAA_CNTL_SAMPLES(MSAA_ONE) |
+			A5XX_RB_DEST_MSAA_CNTL_MSAA_DISABLE);
+
+	OUT_PKT4(ring, REG_A5XX_GRAS_SC_RAS_MSAA_CNTL, 2);
+	OUT_RING(ring, A5XX_GRAS_SC_RAS_MSAA_CNTL_SAMPLES(MSAA_ONE));
+	OUT_RING(ring, A5XX_GRAS_SC_DEST_MSAA_CNTL_SAMPLES(MSAA_ONE) |
+			A5XX_GRAS_SC_DEST_MSAA_CNTL_MSAA_DISABLE);
+}
+
 void
 fd5_gmem_init(struct pipe_context *pctx)
 {
@@ -480,4 +551,5 @@ fd5_gmem_init(struct pipe_context *pctx)
 	ctx->emit_tile_renderprep = fd5_emit_tile_renderprep;
 	ctx->emit_tile_gmem2mem = fd5_emit_tile_gmem2mem;
 	ctx->emit_tile_fini = fd5_emit_tile_fini;
+	ctx->emit_sysmem_prep = fd5_emit_sysmem_prep;
 }