[Nouveau] [RFC PATCH 2/8] nv50: allocate a software object class

[Samuel Pitoiset]

This will allow to monitor global performance counters through the
command stream of the GPU instead of using ioctls.

Signed-off-by: Samuel Pitoiset <samuel.pitoiset at gmail.com>
---
 src/gallium/drivers/nouveau/nv50/nv50_screen.c | 11 +++++++++++
 src/gallium/drivers/nouveau/nv50/nv50_screen.h |  1 +
 src/gallium/drivers/nouveau/nv50/nv50_winsys.h |  1 +
 3 files changed, 13 insertions(+)

diff --git a/src/gallium/drivers/nouveau/nv50/nv50_screen.c b/src/gallium/drivers/nouveau/nv50/nv50_screen.c
index 6583a35..c985344 100644
--- a/src/gallium/drivers/nouveau/nv50/nv50_screen.c
+++ b/src/gallium/drivers/nouveau/nv50/nv50_screen.c
@@ -367,6 +367,7 @@ nv50_screen_destroy(struct pipe_screen *pscreen)
    nouveau_object_del(&screen->eng2d);
    nouveau_object_del(&screen->m2mf);
    nouveau_object_del(&screen->sync);
+   nouveau_object_del(&screen->sw);
 
    nouveau_screen_fini(&screen->base);
 
@@ -437,6 +438,9 @@ nv50_screen_init_hwctx(struct nv50_screen *screen)
    BEGIN_NV04(push, SUBC_3D(NV01_SUBCHAN_OBJECT), 1);
    PUSH_DATA (push, screen->tesla->handle);
 
+   BEGIN_NV04(push, SUBC_SW(NV01_SUBCHAN_OBJECT), 1);
+   PUSH_DATA (push, screen->sw->handle);
+
    BEGIN_NV04(push, NV50_3D(COND_MODE), 1);
    PUSH_DATA (push, NV50_3D_COND_MODE_ALWAYS);
 
@@ -768,6 +772,13 @@ nv50_screen_create(struct nouveau_device *dev)
       goto fail;
    }
 
+   ret = nouveau_object_new(chan, 0xbeef506e, 0x506e,
+                            NULL, 0, &screen->sw);
+   if (ret) {
+      NOUVEAU_ERR("Failed to allocate SW object: %d\n", ret);
+      goto fail;
+   }
+
    ret = nouveau_object_new(chan, 0xbeef5039, NV50_M2MF_CLASS,
                             NULL, 0, &screen->m2mf);
    if (ret) {
diff --git a/src/gallium/drivers/nouveau/nv50/nv50_screen.h b/src/gallium/drivers/nouveau/nv50/nv50_screen.h
index 881051b..69fdfdb 100644
--- a/src/gallium/drivers/nouveau/nv50/nv50_screen.h
+++ b/src/gallium/drivers/nouveau/nv50/nv50_screen.h
@@ -93,6 +93,7 @@ struct nv50_screen {
    struct nouveau_object *tesla;
    struct nouveau_object *eng2d;
    struct nouveau_object *m2mf;
+   struct nouveau_object *sw;
 };
 
 static INLINE struct nv50_screen *
diff --git a/src/gallium/drivers/nouveau/nv50/nv50_winsys.h b/src/gallium/drivers/nouveau/nv50/nv50_winsys.h
index e8578c8..5cb33ef 100644
--- a/src/gallium/drivers/nouveau/nv50/nv50_winsys.h
+++ b/src/gallium/drivers/nouveau/nv50/nv50_winsys.h
@@ -60,6 +60,7 @@ PUSH_REFN(struct nouveau_pushbuf *push, struct nouveau_bo *bo, uint32_t flags)
 #define SUBC_COMPUTE(m) 6, (m)
 #define NV50_COMPUTE(n) SUBC_COMPUTE(NV50_COMPUTE_##n)
 
+#define SUBC_SW(m) 7, (m)
 
 static INLINE uint32_t
 NV50_FIFO_PKHDR(int subc, int mthd, unsigned size)
-- 
2.4.4