drm/nouveau/bus: add interfaces/helpers for sequencer

[platform/adaptation/renesas_rcar/renesas_kernel.git] / drivers / gpu / drm / nouveau / core / subdev / bus / nv50.c

diff --git a/drivers/gpu/drm/nouveau/core/subdev/bus/nv50.c b/drivers/gpu/drm/nouveau/core/subdev/bus/nv50.c
index cda5347..11918f7 100644 (file)
--- a/drivers/gpu/drm/nouveau/core/subdev/bus/nv50.c
+++ b/drivers/gpu/drm/nouveau/core/subdev/bus/nv50.c
@@ -23,9 +23,27 @@
  *          Ben Skeggs
  */
 
+#include <subdev/timer.h>
+
 #include "nv04.h"
 
-static void
+static int
+nv50_bus_hwsq_exec(struct nouveau_bus *pbus, u32 *data, u32 size)
+{
+       struct nv50_bus_priv *priv = (void *)pbus;
+       int i;
+
+       nv_mask(pbus, 0x001098, 0x00000008, 0x00000000);
+       nv_wr32(pbus, 0x001304, 0x00000000);
+       for (i = 0; i < size; i++)
+               nv_wr32(priv, 0x001400 + (i * 4), data[i]);
+       nv_mask(pbus, 0x001098, 0x00000018, 0x00000018);
+       nv_wr32(pbus, 0x00130c, 0x00000003);
+
+       return nv_wait(pbus, 0x001308, 0x00000100, 0x00000000) ? 0 : -ETIMEDOUT;
+}
+
+void
 nv50_bus_intr(struct nouveau_subdev *subdev)
 {
        struct nouveau_bus *pbus = nouveau_bus(subdev);
@@ -57,7 +75,7 @@ nv50_bus_intr(struct nouveau_subdev *subdev)
        }
 }
 
-static int
+int
 nv50_bus_init(struct nouveau_object *object)
 {
        struct nv04_bus_priv *priv = (void *)object;
@@ -82,4 +100,6 @@ nv50_bus_oclass = &(struct nv04_bus_impl) {
                .fini = _nouveau_bus_fini,
        },
        .intr = nv50_bus_intr,
+       .hwsq_exec = nv50_bus_hwsq_exec,
+       .hwsq_size = 64,
 }.base;