drm/nouveau/kms/nv50-: convert wndw image_set() to new push macros

Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
Reviewed-by: Lyude Paul <lyude@redhat.com>

diff --git a/drivers/gpu/drm/nouveau/dispnv50/base507c.c b/drivers/gpu/drm/nouveau/dispnv50/base507c.c
index 760ee65..ae1c5cc 100644 (file)
--- a/drivers/gpu/drm/nouveau/dispnv50/base507c.c
+++ b/drivers/gpu/drm/nouveau/dispnv50/base507c.c
@@ -56,37 +56,35 @@ base507c_image_clr(struct nv50_wndw *wndw)
        }
 }
 
-static void
+static int
 base507c_image_set(struct nv50_wndw *wndw, struct nv50_wndw_atom *asyw)
 {
-       u32 *push;
-       if ((push = evo_wait(&wndw->wndw, 13))) {
-               evo_mthd(push, 0x0084, 1);
-               evo_data(push, asyw->image.mode << 8 |
-                              asyw->image.interval << 4);
-               evo_mthd(push, 0x00c0, 1);
-               evo_data(push, asyw->image.handle[0]);
-               if (asyw->image.format == 0xca) {
-                       evo_mthd(push, 0x0110, 2);
-                       evo_data(push, 1);
-                       evo_data(push, 0x6400);
-               } else {
-                       evo_mthd(push, 0x0110, 2);
-                       evo_data(push, 0);
-                       evo_data(push, 0);
-               }
-               evo_mthd(push, 0x0800, 5);
-               evo_data(push, asyw->image.offset[0] >> 8);
-               evo_data(push, 0x00000000);
-               evo_data(push, asyw->image.h << 16 | asyw->image.w);
-               evo_data(push, asyw->image.layout << 20 |
-                              (asyw->image.pitch[0] >> 8) << 8 |
-                              asyw->image.blocks[0] << 8 |
-                              asyw->image.blockh);
-               evo_data(push, asyw->image.kind << 16 |
-                              asyw->image.format << 8);
-               evo_kick(push, &wndw->wndw);
+       struct nvif_push *push = wndw->wndw.push;
+       int ret;
+
+       if ((ret = PUSH_WAIT(push, 13)))
+               return ret;
+
+       PUSH_NVSQ(push, NV507C, 0x0084, asyw->image.mode << 8 |
+                                       asyw->image.interval << 4);
+       PUSH_NVSQ(push, NV507C, 0x00c0, asyw->image.handle[0]);
+       if (asyw->image.format == 0xca) {
+               PUSH_NVSQ(push, NV507C, 0x0110, 1,
+                                       0x0114, 0x6400);
+       } else {
+               PUSH_NVSQ(push, NV507C, 0x0110, 0,
+                                       0x0114, 0);
        }
+       PUSH_NVSQ(push, NV507C, 0x0800, asyw->image.offset[0] >> 8,
+                               0x0804, 0x00000000,
+                               0x0808, asyw->image.h << 16 | asyw->image.w,
+                               0x080c, asyw->image.layout << 20 |
+                                      (asyw->image.pitch[0] >> 8) << 8 |
+                                       asyw->image.blocks[0] << 8 |
+                                       asyw->image.blockh,
+                               0x0810, asyw->image.kind << 16 |
+                                       asyw->image.format << 8);
+       return 0;
 }
 
 int

diff --git a/drivers/gpu/drm/nouveau/dispnv50/base827c.c b/drivers/gpu/drm/nouveau/dispnv50/base827c.c
index f4c0594..c199519 100644 (file)
--- a/drivers/gpu/drm/nouveau/dispnv50/base827c.c
+++ b/drivers/gpu/drm/nouveau/dispnv50/base827c.c
@@ -21,36 +21,36 @@
  */
 #include "base.h"
 
-static void
+#include <nvif/push507c.h>
+
+static int
 base827c_image_set(struct nv50_wndw *wndw, struct nv50_wndw_atom *asyw)
 {
-       u32 *push;
-       if ((push = evo_wait(&wndw->wndw, 13))) {
-               evo_mthd(push, 0x0084, 1);
-               evo_data(push, asyw->image.mode << 8 |
-                              asyw->image.interval << 4);
-               evo_mthd(push, 0x00c0, 1);
-               evo_data(push, asyw->image.handle[0]);
-               if (asyw->image.format == 0xca) {
-                       evo_mthd(push, 0x0110, 2);
-                       evo_data(push, 1);
-                       evo_data(push, 0x6400);
-               } else {
-                       evo_mthd(push, 0x0110, 2);
-                       evo_data(push, 0);
-                       evo_data(push, 0);
-               }
-               evo_mthd(push, 0x0800, 5);
-               evo_data(push, asyw->image.offset[0] >> 8);
-               evo_data(push, 0x00000000);
-               evo_data(push, asyw->image.h << 16 | asyw->image.w);
-               evo_data(push, asyw->image.layout << 20 |
-                              (asyw->image.pitch[0] >> 8) << 8 |
-                              asyw->image.blocks[0] << 8 |
-                              asyw->image.blockh);
-               evo_data(push, asyw->image.format << 8);
-               evo_kick(push, &wndw->wndw);
+       struct nvif_push *push = wndw->wndw.push;
+       int ret;
+
+       if ((ret = PUSH_WAIT(push, 13)))
+               return ret;
+
+       PUSH_NVSQ(push, NV827C, 0x0084, asyw->image.mode << 8 |
+                                       asyw->image.interval << 4);
+       PUSH_NVSQ(push, NV827C, 0x00c0, asyw->image.handle[0]);
+       if (asyw->image.format == 0xca) {
+               PUSH_NVSQ(push, NV827C, 0x0110, 1,
+                                       0x0114, 0x6400);
+       } else {
+               PUSH_NVSQ(push, NV827C, 0x0110, 0,
+                                       0x0114, 0);
        }
+       PUSH_NVSQ(push, NV827C, 0x0800, asyw->image.offset[0] >> 8,
+                               0x0804, 0x00000000,
+                               0x0808, asyw->image.h << 16 | asyw->image.w,
+                               0x080c, asyw->image.layout << 20 |
+                                      (asyw->image.pitch[0] >> 8) << 8 |
+                                       asyw->image.blocks[0] << 8 |
+                                       asyw->image.blockh,
+                               0x0810, asyw->image.format << 8);
+       return 0;
 }
 
 static const struct nv50_wndw_func

diff --git a/drivers/gpu/drm/nouveau/dispnv50/base907c.c b/drivers/gpu/drm/nouveau/dispnv50/base907c.c
index d50fa80..c88a924 100644 (file)
--- a/drivers/gpu/drm/nouveau/dispnv50/base907c.c
+++ b/drivers/gpu/drm/nouveau/dispnv50/base907c.c
@@ -23,27 +23,27 @@
 
 #include <nvif/push507c.h>
 
-static void
+static int
 base907c_image_set(struct nv50_wndw *wndw, struct nv50_wndw_atom *asyw)
 {
-       u32 *push;
-       if ((push = evo_wait(&wndw->wndw, 10))) {
-               evo_mthd(push, 0x0084, 1);
-               evo_data(push, asyw->image.mode << 8 |
-                              asyw->image.interval << 4);
-               evo_mthd(push, 0x00c0, 1);
-               evo_data(push, asyw->image.handle[0]);
-               evo_mthd(push, 0x0400, 5);
-               evo_data(push, asyw->image.offset[0] >> 8);
-               evo_data(push, 0x00000000);
-               evo_data(push, asyw->image.h << 16 | asyw->image.w);
-               evo_data(push, asyw->image.layout << 24 |
-                              (asyw->image.pitch[0] >> 8) << 8 |
-                              asyw->image.blocks[0] << 8 |
-                              asyw->image.blockh);
-               evo_data(push, asyw->image.format << 8);
-               evo_kick(push, &wndw->wndw);
-       }
+       struct nvif_push *push = wndw->wndw.push;
+       int ret;
+
+       if ((ret = PUSH_WAIT(push, 10)))
+               return ret;
+
+       PUSH_NVSQ(push, NV907C, 0x0084, asyw->image.mode << 8 |
+                                       asyw->image.interval << 4);
+       PUSH_NVSQ(push, NV907C, 0x00c0, asyw->image.handle[0]);
+       PUSH_NVSQ(push, NV907C, 0x0400, asyw->image.offset[0] >> 8,
+                               0x0404, 0x00000000,
+                               0x0408, asyw->image.h << 16 | asyw->image.w,
+                               0x040c, asyw->image.layout << 24 |
+                                      (asyw->image.pitch[0] >> 8) << 8 |
+                                       asyw->image.blocks[0] << 8 |
+                                       asyw->image.blockh,
+                               0x0410, asyw->image.format << 8);
+       return 0;
 }
 
 static int

diff --git a/drivers/gpu/drm/nouveau/dispnv50/ovly507e.c b/drivers/gpu/drm/nouveau/dispnv50/ovly507e.c
index 151064a..e182f37 100644 (file)
--- a/drivers/gpu/drm/nouveau/dispnv50/ovly507e.c
+++ b/drivers/gpu/drm/nouveau/dispnv50/ovly507e.c
@@ -28,6 +28,7 @@
 
 #include <nvif/cl507e.h>
 #include <nvif/event.h>
+#include <nvif/push507c.h>
 
 void
 ovly507e_update(struct nv50_wndw *wndw, u32 *interlock)
@@ -66,30 +67,28 @@ ovly507e_image_clr(struct nv50_wndw *wndw)
        }
 }
 
-static void
+static int
 ovly507e_image_set(struct nv50_wndw *wndw, struct nv50_wndw_atom *asyw)
 {
-       u32 *push;
-       if ((push = evo_wait(&wndw->wndw, 12))) {
-               evo_mthd(push, 0x0084, 1);
-               evo_data(push, asyw->image.interval << 4);
-               evo_mthd(push, 0x00c0, 1);
-               evo_data(push, asyw->image.handle[0]);
-               evo_mthd(push, 0x0100, 1);
-               evo_data(push, 0x00000002);
-               evo_mthd(push, 0x0800, 1);
-               evo_data(push, asyw->image.offset[0] >> 8);
-               evo_mthd(push, 0x0808, 3);
-               evo_data(push, asyw->image.h << 16 | asyw->image.w);
-               evo_data(push, asyw->image.layout << 20 |
-                              (asyw->image.pitch[0] >> 8) << 8 |
-                              asyw->image.blocks[0] << 8 |
-                              asyw->image.blockh);
-               evo_data(push, asyw->image.kind << 16 |
-                              asyw->image.format << 8 |
-                              asyw->image.colorspace);
-               evo_kick(push, &wndw->wndw);
-       }
+       struct nvif_push *push = wndw->wndw.push;
+       int ret;
+
+       if ((ret = PUSH_WAIT(push, 12)))
+               return ret;
+
+       PUSH_NVSQ(push, NV507E, 0x0084, asyw->image.interval << 4);
+       PUSH_NVSQ(push, NV507E, 0x00c0, asyw->image.handle[0]);
+       PUSH_NVSQ(push, NV507E, 0x0100, 0x00000002);
+       PUSH_NVSQ(push, NV507E, 0x0800, asyw->image.offset[0] >> 8);
+       PUSH_NVSQ(push, NV507E, 0x0808, asyw->image.h << 16 | asyw->image.w,
+                               0x080c, asyw->image.layout << 20 |
+                                      (asyw->image.pitch[0] >> 8) << 8 |
+                                       asyw->image.blocks[0] << 8 |
+                                       asyw->image.blockh,
+                               0x0810, asyw->image.kind << 16 |
+                                       asyw->image.format << 8 |
+                                       asyw->image.colorspace);
+       return 0;
 }
 
 void

diff --git a/drivers/gpu/drm/nouveau/dispnv50/ovly827e.c b/drivers/gpu/drm/nouveau/dispnv50/ovly827e.c
index 37e37a7..cb0f372 100644 (file)
--- a/drivers/gpu/drm/nouveau/dispnv50/ovly827e.c
+++ b/drivers/gpu/drm/nouveau/dispnv50/ovly827e.c
@@ -24,31 +24,30 @@
 
 #include <nouveau_bo.h>
 
+#include <nvif/push507c.h>
 #include <nvif/timer.h>
 
-static void
+static int
 ovly827e_image_set(struct nv50_wndw *wndw, struct nv50_wndw_atom *asyw)
 {
-       u32 *push;
-       if ((push = evo_wait(&wndw->wndw, 12))) {
-               evo_mthd(push, 0x0084, 1);
-               evo_data(push, asyw->image.interval << 4);
-               evo_mthd(push, 0x00c0, 1);
-               evo_data(push, asyw->image.handle[0]);
-               evo_mthd(push, 0x0100, 1);
-               evo_data(push, 0x00000002);
-               evo_mthd(push, 0x0800, 1);
-               evo_data(push, asyw->image.offset[0] >> 8);
-               evo_mthd(push, 0x0808, 3);
-               evo_data(push, asyw->image.h << 16 | asyw->image.w);
-               evo_data(push, asyw->image.layout << 20 |
-                              (asyw->image.pitch[0] >> 8) << 8 |
-                              asyw->image.blocks[0] << 8 |
-                              asyw->image.blockh);
-               evo_data(push, asyw->image.format << 8 |
-                              asyw->image.colorspace);
-               evo_kick(push, &wndw->wndw);
-       }
+       struct nvif_push *push = wndw->wndw.push;
+       int ret;
+
+       if ((ret = PUSH_WAIT(push, 12)))
+               return ret;
+
+       PUSH_NVSQ(push, NV827E, 0x0084, asyw->image.interval << 4);
+       PUSH_NVSQ(push, NV827E, 0x00c0, asyw->image.handle[0]);
+       PUSH_NVSQ(push, NV827E, 0x0100, 0x00000002);
+       PUSH_NVSQ(push, NV827E, 0x0800, asyw->image.offset[0] >> 8);
+       PUSH_NVSQ(push, NV827E, 0x0808, asyw->image.h << 16 | asyw->image.w,
+                               0x080c, asyw->image.layout << 20 |
+                                      (asyw->image.pitch[0] >> 8) << 8 |
+                                       asyw->image.blocks[0] << 8 |
+                                       asyw->image.blockh,
+                               0x0810, asyw->image.format << 8 |
+                                       asyw->image.colorspace);
+       return 0;
 }
 
 int

diff --git a/drivers/gpu/drm/nouveau/dispnv50/ovly907e.c b/drivers/gpu/drm/nouveau/dispnv50/ovly907e.c
index 73fb5d4..6b83daf 100644 (file)
--- a/drivers/gpu/drm/nouveau/dispnv50/ovly907e.c
+++ b/drivers/gpu/drm/nouveau/dispnv50/ovly907e.c
@@ -22,29 +22,29 @@
 #include "ovly.h"
 #include "atom.h"
 
-static void
+#include <nvif/push507c.h>
+
+static int
 ovly907e_image_set(struct nv50_wndw *wndw, struct nv50_wndw_atom *asyw)
 {
-       u32 *push;
-       if ((push = evo_wait(&wndw->wndw, 12))) {
-               evo_mthd(push, 0x0084, 1);
-               evo_data(push, asyw->image.interval << 4);
-               evo_mthd(push, 0x00c0, 1);
-               evo_data(push, asyw->image.handle[0]);
-               evo_mthd(push, 0x0100, 1);
-               evo_data(push, 0x00000002);
-               evo_mthd(push, 0x0400, 1);
-               evo_data(push, asyw->image.offset[0] >> 8);
-               evo_mthd(push, 0x0408, 3);
-               evo_data(push, asyw->image.h << 16 | asyw->image.w);
-               evo_data(push, asyw->image.layout << 24 |
-                              (asyw->image.pitch[0] >> 8) << 8 |
-                              asyw->image.blocks[0] << 8 |
-                              asyw->image.blockh);
-               evo_data(push, asyw->image.format << 8 |
-                              asyw->image.colorspace);
-               evo_kick(push, &wndw->wndw);
-       }
+       struct nvif_push *push = wndw->wndw.push;
+       int ret;
+
+       if ((ret = PUSH_WAIT(push, 12)))
+               return ret;
+
+       PUSH_NVSQ(push, NV907E, 0x0084, asyw->image.interval << 4);
+       PUSH_NVSQ(push, NV907E, 0x00c0, asyw->image.handle[0]);
+       PUSH_NVSQ(push, NV907E, 0x0100, 0x00000002);
+       PUSH_NVSQ(push, NV907E, 0x0400, asyw->image.offset[0] >> 8);
+       PUSH_NVSQ(push, NV907E, 0x0408, asyw->image.h << 16 | asyw->image.w,
+                               0x040c, asyw->image.layout << 24 |
+                                      (asyw->image.pitch[0] >> 8) << 8 |
+                                       asyw->image.blocks[0] << 8 |
+                                       asyw->image.blockh,
+                               0x0410, asyw->image.format << 8 |
+                                       asyw->image.colorspace);
+       return 0;
 }
 
 const struct nv50_wndw_func

diff --git a/drivers/gpu/drm/nouveau/dispnv50/wndw.h b/drivers/gpu/drm/nouveau/dispnv50/wndw.h
index 6baf270..d6e1c29 100644 (file)
--- a/drivers/gpu/drm/nouveau/dispnv50/wndw.h
+++ b/drivers/gpu/drm/nouveau/dispnv50/wndw.h
@@ -74,7 +74,7 @@ struct nv50_wndw_func {
        bool olut_core;
        int (*xlut_set)(struct nv50_wndw *, struct nv50_wndw_atom *);
        int (*xlut_clr)(struct nv50_wndw *);
-       void (*image_set)(struct nv50_wndw *, struct nv50_wndw_atom *);
+       int (*image_set)(struct nv50_wndw *, struct nv50_wndw_atom *);
        void (*image_clr)(struct nv50_wndw *);
        void (*scale_set)(struct nv50_wndw *, struct nv50_wndw_atom *);
        void (*blend_set)(struct nv50_wndw *, struct nv50_wndw_atom *);

diff --git a/drivers/gpu/drm/nouveau/dispnv50/wndwc37e.c b/drivers/gpu/drm/nouveau/dispnv50/wndwc37e.c
index eab1c32..24cb4e9 100644 (file)
--- a/drivers/gpu/drm/nouveau/dispnv50/wndwc37e.c
+++ b/drivers/gpu/drm/nouveau/dispnv50/wndwc37e.c
@@ -125,37 +125,34 @@ wndwc37e_image_clr(struct nv50_wndw *wndw)
        }
 }
 
-static void
+static int
 wndwc37e_image_set(struct nv50_wndw *wndw, struct nv50_wndw_atom *asyw)
 {
-       u32 *push;
+       struct nvif_push *push = wndw->wndw.push;
+       int ret;
 
-       if (!(push = evo_wait(&wndw->wndw, 17)))
-               return;
-
-       evo_mthd(push, 0x0308, 1);
-       evo_data(push, asyw->image.mode << 4 | asyw->image.interval);
-       evo_mthd(push, 0x0224, 4);
-       evo_data(push, asyw->image.h << 16 | asyw->image.w);
-       evo_data(push, asyw->image.layout << 4 | asyw->image.blockh);
-       evo_data(push, asyw->csc.valid << 17 |
-                      asyw->image.colorspace << 8 |
-                      asyw->image.format);
-       evo_data(push, asyw->image.blocks[0] | (asyw->image.pitch[0] >> 6));
-       evo_mthd(push, 0x0240, 1);
-       evo_data(push, asyw->image.handle[0]);
-       evo_mthd(push, 0x0260, 1);
-       evo_data(push, asyw->image.offset[0] >> 8);
-       evo_mthd(push, 0x0290, 1);
-       evo_data(push, (asyw->state.src_y >> 16) << 16 |
-                      (asyw->state.src_x >> 16));
-       evo_mthd(push, 0x0298, 1);
-       evo_data(push, (asyw->state.src_h >> 16) << 16 |
-                      (asyw->state.src_w >> 16));
-       evo_mthd(push, 0x02a4, 1);
-       evo_data(push, asyw->state.crtc_h << 16 |
-                      asyw->state.crtc_w);
-       evo_kick(push, &wndw->wndw);
+       if ((ret = PUSH_WAIT(push, 17)))
+               return ret;
+
+       PUSH_NVSQ(push, NVC37E, 0x0308, asyw->image.mode << 4 |
+                                       asyw->image.interval);
+       PUSH_NVSQ(push, NVC37E, 0x0224, asyw->image.h << 16 | asyw->image.w,
+                               0x0228, asyw->image.layout << 4 |
+                                       asyw->image.blockh,
+                               0x022c, asyw->csc.valid << 17 |
+                                       asyw->image.colorspace << 8 |
+                                       asyw->image.format,
+                               0x0230, asyw->image.blocks[0] |
+                                      (asyw->image.pitch[0] >> 6));
+       PUSH_NVSQ(push, NVC37E, 0x0240, asyw->image.handle[0]);
+       PUSH_NVSQ(push, NVC37E, 0x0260, asyw->image.offset[0] >> 8);
+       PUSH_NVSQ(push, NVC37E, 0x0290,(asyw->state.src_y >> 16) << 16 |
+                                      (asyw->state.src_x >> 16));
+       PUSH_NVSQ(push, NVC37E, 0x0298,(asyw->state.src_h >> 16) << 16 |
+                                      (asyw->state.src_w >> 16));
+       PUSH_NVSQ(push, NVC37E, 0x02a4, asyw->state.crtc_h << 16 |
+                                       asyw->state.crtc_w);
+       return 0;
 }
 
 int

diff --git a/drivers/gpu/drm/nouveau/dispnv50/wndwc57e.c b/drivers/gpu/drm/nouveau/dispnv50/wndwc57e.c
index f393399..687cb73 100644 (file)
--- a/drivers/gpu/drm/nouveau/dispnv50/wndwc57e.c
+++ b/drivers/gpu/drm/nouveau/dispnv50/wndwc57e.c
@@ -29,36 +29,33 @@
 #include <nvif/clc37e.h>
 #include <nvif/pushc37b.h>
 
-static void
+static int
 wndwc57e_image_set(struct nv50_wndw *wndw, struct nv50_wndw_atom *asyw)
 {
-       u32 *push;
-
-       if (!(push = evo_wait(&wndw->wndw, 17)))
-               return;
-
-       evo_mthd(push, 0x0308, 1);
-       evo_data(push, asyw->image.mode << 4 | asyw->image.interval);
-       evo_mthd(push, 0x0224, 4);
-       evo_data(push, asyw->image.h << 16 | asyw->image.w);
-       evo_data(push, asyw->image.layout << 4 | asyw->image.blockh);
-       evo_data(push, asyw->image.colorspace << 8 |
-                      asyw->image.format);
-       evo_data(push, asyw->image.blocks[0] | (asyw->image.pitch[0] >> 6));
-       evo_mthd(push, 0x0240, 1);
-       evo_data(push, asyw->image.handle[0]);
-       evo_mthd(push, 0x0260, 1);
-       evo_data(push, asyw->image.offset[0] >> 8);
-       evo_mthd(push, 0x0290, 1);
-       evo_data(push, (asyw->state.src_y >> 16) << 16 |
-                      (asyw->state.src_x >> 16));
-       evo_mthd(push, 0x0298, 1);
-       evo_data(push, (asyw->state.src_h >> 16) << 16 |
-                      (asyw->state.src_w >> 16));
-       evo_mthd(push, 0x02a4, 1);
-       evo_data(push, asyw->state.crtc_h << 16 |
-                      asyw->state.crtc_w);
-       evo_kick(push, &wndw->wndw);
+       struct nvif_push *push = wndw->wndw.push;
+       int ret;
+
+       if ((ret = PUSH_WAIT(push, 17)))
+               return ret;
+
+       PUSH_NVSQ(push, NVC57E, 0x0308, asyw->image.mode << 4 |
+                                       asyw->image.interval);
+       PUSH_NVSQ(push, NVC57E, 0x0224, asyw->image.h << 16 | asyw->image.w,
+                               0x0228, asyw->image.layout << 4 |
+                                       asyw->image.blockh,
+                               0x022c, asyw->image.colorspace << 8 |
+                                       asyw->image.format,
+                               0x0230, asyw->image.blocks[0] |
+                                      (asyw->image.pitch[0] >> 6));
+       PUSH_NVSQ(push, NVC57E, 0x0240, asyw->image.handle[0]);
+       PUSH_NVSQ(push, NVC57E, 0x0260, asyw->image.offset[0] >> 8);
+       PUSH_NVSQ(push, NVC57E, 0x0290,(asyw->state.src_y >> 16) << 16 |
+                                      (asyw->state.src_x >> 16));
+       PUSH_NVSQ(push, NVC57E, 0x0298,(asyw->state.src_h >> 16) << 16 |
+                                      (asyw->state.src_w >> 16));
+       PUSH_NVSQ(push, NVC57E, 0x02a4, asyw->state.crtc_h << 16 |
+                                       asyw->state.crtc_w);
+       return 0;
 }
 
 static int