nv50,nvc0: detect underlying resource changes and update tic

When updating texture buffers, we might end up replacing the whole
buffer. Check that the tic address matches the resource address, and if
not, update the tic and reupload it.

This fixes:
  arb_direct_state_access-texture-buffer
  arb_texture_buffer_object-data-sync

Signed-off-by: Ilia Mirkin <[email protected]>
Cc: "11.0" <[email protected]>

1 files changed, 22 insertions, 0 deletions

diff --git a/src/gallium/drivers/nouveau/nvc0/nvc0_tex.c b/src/gallium/drivers/nouveau/nvc0/nvc0_tex.c
index d19082e0e15..2dd100ffdc7 100644
--- a/src/gallium/drivers/nouveau/nvc0/nvc0_tex.c
+++ b/src/gallium/drivers/nouveau/nvc0/nvc0_tex.c
@@ -226,6 +226,26 @@ nvc0_create_texture_view(struct pipe_context *pipe,
    return &view->pipe;
 }
 
+static void
+nvc0_update_tic(struct nvc0_context *nvc0, struct nv50_tic_entry *tic,
+                struct nv04_resource *res)
+{
+   uint64_t address = res->address;
+   if (res->base.target != PIPE_BUFFER)
+      return;
+   address += tic->pipe.u.buf.first_element *
+      util_format_get_blocksize(tic->pipe.format);
+   if (tic->tic[1] == (uint32_t)address &&
+       (tic->tic[2] & 0xff) == address >> 32)
+      return;
+
+   nvc0_screen_tic_unlock(nvc0->screen, tic);
+   tic->id = -1;
+   tic->tic[1] = address;
+   tic->tic[2] &= 0xffffff00;
+   tic->tic[2] |= address >> 32;
+}
+
 static bool
 nvc0_validate_tic(struct nvc0_context *nvc0, int s)
 {
@@ -247,6 +267,7 @@ nvc0_validate_tic(struct nvc0_context *nvc0, int s)
          continue;
       }
       res = nv04_resource(tic->pipe.texture);
+      nvc0_update_tic(nvc0, tic, res);
 
       if (tic->id < 0) {
          tic->id = nvc0_screen_tic_alloc(nvc0->screen, tic);
@@ -313,6 +334,7 @@ nve4_validate_tic(struct nvc0_context *nvc0, unsigned s)
          continue;
       }
       res = nv04_resource(tic->pipe.texture);
+      nvc0_update_tic(nvc0, tic, res);
 
       if (tic->id < 0) {
          tic->id = nvc0_screen_tic_alloc(nvc0->screen, tic);