Mesa (7.11): nv50, nvc0: use screen instead of context for flush notifier

Marcin Åšlusarz mslusarz at kemper.freedesktop.org
Sun Dec 11 16:02:33 UTC 2011


Module: Mesa
Branch: 7.11
Commit: 0e9b79c22a53efb8413ba6b4e49085a08221a5d3
URL:    http://cgit.freedesktop.org/mesa/mesa/commit/?id=0e9b79c22a53efb8413ba6b4e49085a08221a5d3

Author: Christoph Bumiller <e0425955 at student.tuwien.ac.at>
Date:   Thu Jul  7 14:58:29 2011 +0200

nv50,nvc0: use screen instead of context for flush notifier

Context may become NULL and we still have to be able to flush
pending fences.

(Cherry picked from commit 3069a7eaa5d83e7f41616347ba244c0dc0d944ae)
Fixes crash on screen shutdown: https://bugs.freedesktop.org/show_bug.cgi?id=43428

---

 src/gallium/drivers/nv50/nv50_context.c        |   13 +++++--------
 src/gallium/drivers/nv50/nv50_screen.c         |    2 ++
 src/gallium/drivers/nv50/nv50_state_validate.c |    3 +--
 src/gallium/drivers/nv50/nv50_vbo.c            |    7 +++----
 src/gallium/drivers/nvc0/nvc0_context.c        |   13 +++++--------
 src/gallium/drivers/nvc0/nvc0_screen.c         |    8 ++++++--
 src/gallium/drivers/nvc0/nvc0_state_validate.c |    3 +--
 src/gallium/drivers/nvc0/nvc0_vbo.c            |    7 +++----
 8 files changed, 26 insertions(+), 30 deletions(-)

diff --git a/src/gallium/drivers/nv50/nv50_context.c b/src/gallium/drivers/nv50/nv50_context.c
index ceb83f6..ac3e361 100644
--- a/src/gallium/drivers/nv50/nv50_context.c
+++ b/src/gallium/drivers/nv50/nv50_context.c
@@ -60,13 +60,13 @@ nv50_texture_barrier(struct pipe_context *pipe)
 void
 nv50_default_flush_notify(struct nouveau_channel *chan)
 {
-   struct nv50_context *nv50 = chan->user_private;
+   struct nv50_screen *screen = chan->user_private;
 
-   if (!nv50)
+   if (!screen)
       return;
 
-   nouveau_fence_update(&nv50->screen->base, TRUE);
-   nouveau_fence_next(&nv50->screen->base);
+   nouveau_fence_update(&screen->base, TRUE);
+   nouveau_fence_next(&screen->base);
 }
 
 static void
@@ -100,10 +100,8 @@ nv50_destroy(struct pipe_context *pipe)
 
    draw_destroy(nv50->draw);
 
-   if (nv50->screen->cur_ctx == nv50) {
-      nv50->screen->base.channel->user_private = NULL;
+   if (nv50->screen->cur_ctx == nv50)
       nv50->screen->cur_ctx = NULL;
-   }
 
    FREE(nv50);
 }
@@ -140,7 +138,6 @@ nv50_create(struct pipe_screen *pscreen, void *priv)
 
    if (!screen->cur_ctx)
       screen->cur_ctx = nv50;
-   screen->base.channel->user_private = nv50;
    screen->base.channel->flush_notify = nv50_default_flush_notify;
 
    nv50_init_query_functions(nv50);
diff --git a/src/gallium/drivers/nv50/nv50_screen.c b/src/gallium/drivers/nv50/nv50_screen.c
index 9606c99..4fcf529 100644
--- a/src/gallium/drivers/nv50/nv50_screen.c
+++ b/src/gallium/drivers/nv50/nv50_screen.c
@@ -215,6 +215,7 @@ nv50_screen_destroy(struct pipe_screen *pscreen)
       nouveau_fence_wait(screen->base.fence.current);
       nouveau_fence_ref (NULL, &screen->base.fence.current);
    }
+   screen->base.channel->user_private = NULL;
 
    nouveau_bo_ref(NULL, &screen->code);
    nouveau_bo_ref(NULL, &screen->tls_bo);
@@ -304,6 +305,7 @@ nv50_screen_create(struct pipe_winsys *ws, struct nouveau_device *dev)
       FAIL_SCREEN_INIT("nouveau_screen_init failed: %d\n", ret);
 
    chan = screen->base.channel;
+   chan->user_private = screen;
 
    pscreen->winsys = ws;
    pscreen->destroy = nv50_screen_destroy;
diff --git a/src/gallium/drivers/nv50/nv50_state_validate.c b/src/gallium/drivers/nv50/nv50_state_validate.c
index 11561f5..d29c1e9 100644
--- a/src/gallium/drivers/nv50/nv50_state_validate.c
+++ b/src/gallium/drivers/nv50/nv50_state_validate.c
@@ -282,8 +282,7 @@ nv50_switch_pipe_context(struct nv50_context *ctx_to)
    if (!ctx_to->zsa)
       ctx_to->dirty &= ~NV50_NEW_ZSA;
 
-   ctx_to->screen->base.channel->user_private = ctx_to->screen->cur_ctx =
-      ctx_to;
+   ctx_to->screen->cur_ctx = ctx_to;
 }
 
 static struct state_validate {
diff --git a/src/gallium/drivers/nv50/nv50_vbo.c b/src/gallium/drivers/nv50/nv50_vbo.c
index bb08941..f23008a 100644
--- a/src/gallium/drivers/nv50/nv50_vbo.c
+++ b/src/gallium/drivers/nv50/nv50_vbo.c
@@ -389,11 +389,11 @@ nv50_prim_gl(unsigned prim)
 static void
 nv50_draw_vbo_flush_notify(struct nouveau_channel *chan)
 {
-   struct nv50_context *nv50 = chan->user_private;
+   struct nv50_screen *screen = chan->user_private;
 
-   nouveau_fence_update(&nv50->screen->base, TRUE);
+   nouveau_fence_update(&screen->base, TRUE);
 
-   nv50_bufctx_emit_relocs(nv50);
+   nv50_bufctx_emit_relocs(screen->cur_ctx);
 }
 
 static void
@@ -650,7 +650,6 @@ nv50_draw_vbo(struct pipe_context *pipe, const struct pipe_draw_info *info)
    nv50_state_validate(nv50);
 
    chan->flush_notify = nv50_draw_vbo_flush_notify;
-   chan->user_private = nv50;
 
    if (nv50->vbo_fifo) {
       nv50_push_vbo(nv50, info);
diff --git a/src/gallium/drivers/nvc0/nvc0_context.c b/src/gallium/drivers/nvc0/nvc0_context.c
index 2679b7f..983db23 100644
--- a/src/gallium/drivers/nvc0/nvc0_context.c
+++ b/src/gallium/drivers/nvc0/nvc0_context.c
@@ -89,10 +89,8 @@ nvc0_destroy(struct pipe_context *pipe)
 
    draw_destroy(nvc0->draw);
 
-   if (nvc0->screen->cur_ctx == nvc0) {
-      nvc0->screen->base.channel->user_private = NULL;
+   if (nvc0->screen->cur_ctx == nvc0)
       nvc0->screen->cur_ctx = NULL;
-   }
 
    FREE(nvc0);
 }
@@ -100,13 +98,13 @@ nvc0_destroy(struct pipe_context *pipe)
 void
 nvc0_default_flush_notify(struct nouveau_channel *chan)
 {
-   struct nvc0_context *nvc0 = chan->user_private;
+   struct nvc0_screen *screen = chan->user_private;
 
-   if (!nvc0)
+   if (!screen)
       return;
 
-   nouveau_fence_update(&nvc0->screen->base, TRUE);
-   nouveau_fence_next(&nvc0->screen->base);
+   nouveau_fence_update(&screen->base, TRUE);
+   nouveau_fence_next(&screen->base);
 }
 
 struct pipe_context *
@@ -141,7 +139,6 @@ nvc0_create(struct pipe_screen *pscreen, void *priv)
 
    if (!screen->cur_ctx)
       screen->cur_ctx = nvc0;
-   screen->base.channel->user_private = nvc0;
    screen->base.channel->flush_notify = nvc0_default_flush_notify;
 
    nvc0_init_query_functions(nvc0);
diff --git a/src/gallium/drivers/nvc0/nvc0_screen.c b/src/gallium/drivers/nvc0/nvc0_screen.c
index e87688e..0946fd7 100644
--- a/src/gallium/drivers/nvc0/nvc0_screen.c
+++ b/src/gallium/drivers/nvc0/nvc0_screen.c
@@ -198,8 +198,11 @@ nvc0_screen_destroy(struct pipe_screen *pscreen)
 {
    struct nvc0_screen *screen = nvc0_screen(pscreen);
 
-   nouveau_fence_wait(screen->base.fence.current);
-   nouveau_fence_ref(NULL, &screen->base.fence.current);
+   if (screen->base.fence.current) {
+      nouveau_fence_wait(screen->base.fence.current);
+      nouveau_fence_ref(NULL, &screen->base.fence.current);
+   }
+   screen->base.channel->user_private = NULL;
 
    nouveau_bo_ref(NULL, &screen->text);
    nouveau_bo_ref(NULL, &screen->tls);
@@ -362,6 +365,7 @@ nvc0_screen_create(struct pipe_winsys *ws, struct nouveau_device *dev)
       return NULL;
    }
    chan = screen->base.channel;
+   chan->user_private = screen;
 
    pscreen->winsys = ws;
    pscreen->destroy = nvc0_screen_destroy;
diff --git a/src/gallium/drivers/nvc0/nvc0_state_validate.c b/src/gallium/drivers/nvc0/nvc0_state_validate.c
index 9b2a281..f300f37 100644
--- a/src/gallium/drivers/nvc0/nvc0_state_validate.c
+++ b/src/gallium/drivers/nvc0/nvc0_state_validate.c
@@ -428,8 +428,7 @@ nvc0_switch_pipe_context(struct nvc0_context *ctx_to)
    if (!ctx_to->zsa)
       ctx_to->dirty &= ~NVC0_NEW_ZSA;
 
-   ctx_to->screen->base.channel->user_private = ctx_to->screen->cur_ctx =
-      ctx_to;
+   ctx_to->screen->cur_ctx = ctx_to;
 }
 
 static struct state_validate {
diff --git a/src/gallium/drivers/nvc0/nvc0_vbo.c b/src/gallium/drivers/nvc0/nvc0_vbo.c
index 4107910..8a5bf8d 100644
--- a/src/gallium/drivers/nvc0/nvc0_vbo.c
+++ b/src/gallium/drivers/nvc0/nvc0_vbo.c
@@ -367,11 +367,11 @@ nvc0_prim_gl(unsigned prim)
 static void
 nvc0_draw_vbo_flush_notify(struct nouveau_channel *chan)
 {
-   struct nvc0_context *nvc0 = chan->user_private;
+   struct nvc0_screen *screen = chan->user_private;
 
-   nouveau_fence_update(&nvc0->screen->base, TRUE);
+   nouveau_fence_update(&screen->base, TRUE);
 
-   nvc0_bufctx_emit_relocs(nvc0);
+   nvc0_bufctx_emit_relocs(screen->cur_ctx);
 }
 
 static void
@@ -587,7 +587,6 @@ nvc0_draw_vbo(struct pipe_context *pipe, const struct pipe_draw_info *info)
    nvc0_state_validate(nvc0);
 
    chan->flush_notify = nvc0_draw_vbo_flush_notify;
-   chan->user_private = nvc0;
 
    if (nvc0->vbo_fifo) {
       nvc0_push_vbo(nvc0, info);




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