Mesa (main): gallium: add PIPE_CAP_CLAMP_SPARSE_TEXTURE_LOD

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Module: Mesa
Branch: main
Commit: d68087a1d97a2f0e3b101aeb55d01670d0057968
URL:    http://cgit.freedesktop.org/mesa/mesa/commit/?id=d68087a1d97a2f0e3b101aeb55d01670d0057968

Author: Qiang Yu <yuq825 at gmail.com>
Date:   Wed Jan  5 17:29:35 2022 +0800

gallium: add PIPE_CAP_CLAMP_SPARSE_TEXTURE_LOD

For ARB_sparse_texture_clamp.

Reviewed-By: Mike Blumenkrantz <michael.blumenkrantz at gmail.com>
Reviewed-by: Marek Olšák <marek.olsak at amd.com>
Signed-off-by: Qiang Yu <yuq825 at gmail.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/14488>

---

 docs/gallium/screen.rst                        | 3 ++-
 src/gallium/auxiliary/util/u_screen.c          | 1 +
 src/gallium/drivers/nouveau/nv50/nv50_screen.c | 1 +
 src/gallium/drivers/nouveau/nvc0/nvc0_screen.c | 1 +
 src/gallium/include/pipe/p_defines.h           | 1 +
 5 files changed, 6 insertions(+), 1 deletion(-)

diff --git a/docs/gallium/screen.rst b/docs/gallium/screen.rst
index 9a48230b805..39a85c808d9 100644
--- a/docs/gallium/screen.rst
+++ b/docs/gallium/screen.rst
@@ -634,7 +634,8 @@ The integer capabilities:
 * ``PIPE_CAP_MAX_SPARSE_3D_TEXTURE_SIZE``: Maximum 3D texture image dimension for a sparse texture.
 * ``PIPE_CAP_MAX_SPARSE_ARRAY_TEXTURE_LAYERS``: Maximum number of layers in a sparse array texture.
 * ``PIPE_CAP_SPARSE_TEXTURE_FULL_ARRAY_CUBE_MIPMAPS``: TRUE if there are no restrictions on the allocation of mipmaps in sparse textures and FALSE otherwise. See SPARSE_TEXTURE_FULL_ARRAY_CUBE_MIPMAPS_ARB description in ARB_sparse_texture extension spec.
-* ``PIPE_CAP_QUERY_SPARSE_TEXTURE_RESIDENCY``: TURE if shader sparse texture sample instruction could also return the residency information.
+* ``PIPE_CAP_QUERY_SPARSE_TEXTURE_RESIDENCY``: TRUE if shader sparse texture sample instruction could also return the residency information.
+* ``PIPE_CAP_CLAMP_SPARSE_TEXTURE_LOD``: TRUE if shader sparse texture sample instruction support clamp the minimal lod to prevent read from un-committed pages.
 
 .. _pipe_capf:
 
diff --git a/src/gallium/auxiliary/util/u_screen.c b/src/gallium/auxiliary/util/u_screen.c
index 4cd961fb6d2..71458bccf03 100644
--- a/src/gallium/auxiliary/util/u_screen.c
+++ b/src/gallium/auxiliary/util/u_screen.c
@@ -484,6 +484,7 @@ u_pipe_screen_get_param_defaults(struct pipe_screen *pscreen,
    case PIPE_CAP_MAX_SPARSE_ARRAY_TEXTURE_LAYERS:
    case PIPE_CAP_SPARSE_TEXTURE_FULL_ARRAY_CUBE_MIPMAPS:
    case PIPE_CAP_QUERY_SPARSE_TEXTURE_RESIDENCY:
+   case PIPE_CAP_CLAMP_SPARSE_TEXTURE_LOD:
       return 0;
 
    default:
diff --git a/src/gallium/drivers/nouveau/nv50/nv50_screen.c b/src/gallium/drivers/nouveau/nv50/nv50_screen.c
index d47066f371a..e0751702acc 100644
--- a/src/gallium/drivers/nouveau/nv50/nv50_screen.c
+++ b/src/gallium/drivers/nouveau/nv50/nv50_screen.c
@@ -409,6 +409,7 @@ nv50_screen_get_param(struct pipe_screen *pscreen, enum pipe_cap param)
    case PIPE_CAP_MAX_SPARSE_ARRAY_TEXTURE_LAYERS:
    case PIPE_CAP_SPARSE_TEXTURE_FULL_ARRAY_CUBE_MIPMAPS:
    case PIPE_CAP_QUERY_SPARSE_TEXTURE_RESIDENCY:
+   case PIPE_CAP_CLAMP_SPARSE_TEXTURE_LOD:
       return 0;
 
    case PIPE_CAP_VENDOR_ID:
diff --git a/src/gallium/drivers/nouveau/nvc0/nvc0_screen.c b/src/gallium/drivers/nouveau/nvc0/nvc0_screen.c
index d296c8716c3..f6ca26b86fe 100644
--- a/src/gallium/drivers/nouveau/nvc0/nvc0_screen.c
+++ b/src/gallium/drivers/nouveau/nvc0/nvc0_screen.c
@@ -438,6 +438,7 @@ nvc0_screen_get_param(struct pipe_screen *pscreen, enum pipe_cap param)
    case PIPE_CAP_MAX_SPARSE_ARRAY_TEXTURE_LAYERS:
    case PIPE_CAP_SPARSE_TEXTURE_FULL_ARRAY_CUBE_MIPMAPS:
    case PIPE_CAP_QUERY_SPARSE_TEXTURE_RESIDENCY:
+   case PIPE_CAP_CLAMP_SPARSE_TEXTURE_LOD:
       return 0;
 
    case PIPE_CAP_VENDOR_ID:
diff --git a/src/gallium/include/pipe/p_defines.h b/src/gallium/include/pipe/p_defines.h
index 574c91e2290..7efd4542790 100644
--- a/src/gallium/include/pipe/p_defines.h
+++ b/src/gallium/include/pipe/p_defines.h
@@ -1004,6 +1004,7 @@ enum pipe_cap
    PIPE_CAP_MAX_SPARSE_ARRAY_TEXTURE_LAYERS,
    PIPE_CAP_SPARSE_TEXTURE_FULL_ARRAY_CUBE_MIPMAPS,
    PIPE_CAP_QUERY_SPARSE_TEXTURE_RESIDENCY,
+   PIPE_CAP_CLAMP_SPARSE_TEXTURE_LOD,
 
    PIPE_CAP_LAST,
    /* XXX do not add caps after PIPE_CAP_LAST! */