gallium: Add CAP for opcode DIV

Not all drivers support TGSI_OPCODE_DIV, so we should have a cap to be able
to check this.

Signed-off-by: Gert Wollny <gert.wollny@collabora.com>
Reviewed-by: Marek Olšák <marek.olsak@amd.com>
(cherry picked from commit 843723e2f7c79633cb0fe910b60684b8b2d289f6)
[Juan A. Suarez: resolve trivial conflicts]
Signed-off-by: Juan A. Suarez Romero <jasuarez@igalia.com>

Conflicts:
	src/gallium/docs/source/screen.rst
	src/gallium/include/pipe/p_defines.h

10 files changed, 11 insertions, 0 deletions

diff --git a/src/gallium/auxiliary/util/u_screen.c b/src/gallium/auxiliary/util/u_screen.c
index e5e8763f4f1..88c33c056e9 100644
--- a/src/gallium/auxiliary/util/u_screen.c
+++ b/src/gallium/auxiliary/util/u_screen.c
@@ -282,6 +282,7 @@ u_pipe_screen_get_param_defaults(struct pipe_screen *pscreen,
    case PIPE_CAP_TGSI_BALLOT:
    case PIPE_CAP_TGSI_TES_LAYER_VIEWPORT:
    case PIPE_CAP_CAN_BIND_CONST_BUFFER_AS_VERTEX:
+   case PIPE_CAP_TGSI_DIV:
       return 0;
 
    case PIPE_CAP_ALLOW_MAPPED_BUFFERS_DURING_EXECUTION:
diff --git a/src/gallium/docs/source/screen.rst b/src/gallium/docs/source/screen.rst
index 57554d0681d..2b402cc91e1 100644
--- a/src/gallium/docs/source/screen.rst
+++ b/src/gallium/docs/source/screen.rst
@@ -523,6 +523,7 @@ The integer capabilities:
   resource_from_handle and resource_get_handle.
 * ``PIPE_CAP_PREFER_COMPUTE_BLIT_FOR_MULTIMEDIA``: Whether VDPAU, VAAPI, and
   OpenMAX should use a compute-based blit instead of pipe_context::blit.
+* ``PIPE_CAP_TGSI_DIV``: Whether opcode DIV is supported
 
 .. _pipe_capf:
 
diff --git a/src/gallium/drivers/llvmpipe/lp_screen.c b/src/gallium/drivers/llvmpipe/lp_screen.c
index 510346d2abf..125d2695707 100644
--- a/src/gallium/drivers/llvmpipe/lp_screen.c
+++ b/src/gallium/drivers/llvmpipe/lp_screen.c
@@ -271,6 +271,7 @@ llvmpipe_get_param(struct pipe_screen *screen, enum pipe_cap param)
    case PIPE_CAP_INT64:
    case PIPE_CAP_INT64_DIVMOD:
    case PIPE_CAP_QUERY_SO_OVERFLOW:
+   case PIPE_CAP_TGSI_DIV:
       return 1;
 
    case PIPE_CAP_VENDOR_ID:
diff --git a/src/gallium/drivers/nouveau/nv30/nv30_screen.c b/src/gallium/drivers/nouveau/nv30/nv30_screen.c
index b5dc033bd2d..58889d1be8d 100644
--- a/src/gallium/drivers/nouveau/nv30/nv30_screen.c
+++ b/src/gallium/drivers/nouveau/nv30/nv30_screen.c
@@ -247,6 +247,7 @@ nv30_screen_get_param(struct pipe_screen *pscreen, enum pipe_cap param)
    case PIPE_CAP_MAX_CONSERVATIVE_RASTER_SUBPIXEL_PRECISION_BIAS:
    case PIPE_CAP_PROGRAMMABLE_SAMPLE_LOCATIONS:
    case PIPE_CAP_IMAGE_LOAD_FORMATTED:
+   case PIPE_CAP_TGSI_DIV:
       return 0;
 
    case PIPE_CAP_MAX_GS_INVOCATIONS:
diff --git a/src/gallium/drivers/nouveau/nv50/nv50_screen.c b/src/gallium/drivers/nouveau/nv50/nv50_screen.c
index 423b6af3b64..e28f90e4047 100644
--- a/src/gallium/drivers/nouveau/nv50/nv50_screen.c
+++ b/src/gallium/drivers/nouveau/nv50/nv50_screen.c
@@ -218,6 +218,7 @@ nv50_screen_get_param(struct pipe_screen *pscreen, enum pipe_cap param)
    case PIPE_CAP_CAN_BIND_CONST_BUFFER_AS_VERTEX:
    case PIPE_CAP_ALLOW_MAPPED_BUFFERS_DURING_EXECUTION:
    case PIPE_CAP_DEST_SURFACE_SRGB_CONTROL:
+   case PIPE_CAP_TGSI_DIV:
       return 1;
    case PIPE_CAP_SEAMLESS_CUBE_MAP:
       return 1; /* class_3d >= NVA0_3D_CLASS; */
diff --git a/src/gallium/drivers/nouveau/nvc0/nvc0_screen.c b/src/gallium/drivers/nouveau/nvc0/nvc0_screen.c
index 79224ac99a7..1c2d3ee3d7c 100644
--- a/src/gallium/drivers/nouveau/nvc0/nvc0_screen.c
+++ b/src/gallium/drivers/nouveau/nvc0/nvc0_screen.c
@@ -276,6 +276,7 @@ nvc0_screen_get_param(struct pipe_screen *pscreen, enum pipe_cap param)
    case PIPE_CAP_ALLOW_MAPPED_BUFFERS_DURING_EXECUTION:
    case PIPE_CAP_QUERY_SO_OVERFLOW:
    case PIPE_CAP_DEST_SURFACE_SRGB_CONTROL:
+   case PIPE_CAP_TGSI_DIV:
       return 1;
    case PIPE_CAP_PREFER_BLIT_BASED_TEXTURE_TRANSFER:
       return nouveau_screen(pscreen)->vram_domain & NOUVEAU_BO_VRAM ? 1 : 0;
diff --git a/src/gallium/drivers/radeonsi/si_get.c b/src/gallium/drivers/radeonsi/si_get.c
index 4e23d283ab7..db7ed684f19 100644
--- a/src/gallium/drivers/radeonsi/si_get.c
+++ b/src/gallium/drivers/radeonsi/si_get.c
@@ -156,6 +156,7 @@ static int si_get_param(struct pipe_screen *pscreen, enum pipe_cap param)
 	case PIPE_CAP_COMPUTE_GRID_INFO_LAST_BLOCK:
 	case PIPE_CAP_IMAGE_LOAD_FORMATTED:
 	case PIPE_CAP_PREFER_COMPUTE_BLIT_FOR_MULTIMEDIA:
+        case PIPE_CAP_TGSI_DIV:
 		return 1;
 
 	case PIPE_CAP_RESOURCE_FROM_USER_MEMORY:
diff --git a/src/gallium/drivers/softpipe/sp_screen.c b/src/gallium/drivers/softpipe/sp_screen.c
index 5d44824e202..f79f20ee6ab 100644
--- a/src/gallium/drivers/softpipe/sp_screen.c
+++ b/src/gallium/drivers/softpipe/sp_screen.c
@@ -174,6 +174,7 @@ softpipe_get_param(struct pipe_screen *screen, enum pipe_cap param)
    case PIPE_CAP_DOUBLES:
    case PIPE_CAP_INT64:
    case PIPE_CAP_INT64_DIVMOD:
+   case PIPE_CAP_TGSI_DIV:
       return 1;
    case PIPE_CAP_CONSTANT_BUFFER_OFFSET_ALIGNMENT:
       return 16;
diff --git a/src/gallium/drivers/svga/svga_screen.c b/src/gallium/drivers/svga/svga_screen.c
index f747ff78bcf..631778a7437 100644
--- a/src/gallium/drivers/svga/svga_screen.c
+++ b/src/gallium/drivers/svga/svga_screen.c
@@ -478,6 +478,8 @@ svga_get_param(struct pipe_screen *screen, enum pipe_cap param)
    case PIPE_CAP_PACKED_UNIFORMS:
    case PIPE_CAP_PROGRAMMABLE_SAMPLE_LOCATIONS:
       return 0;
+   case PIPE_CAP_TGSI_DIV:
+      return 1;
    case PIPE_CAP_MAX_GS_INVOCATIONS:
       return 32;
    case PIPE_CAP_MAX_SHADER_BUFFER_SIZE:
diff --git a/src/gallium/include/pipe/p_defines.h b/src/gallium/include/pipe/p_defines.h
index 672a2ea7378..b6cf9c76766 100644
--- a/src/gallium/include/pipe/p_defines.h
+++ b/src/gallium/include/pipe/p_defines.h
@@ -883,6 +883,7 @@ enum pipe_cap
    PIPE_CAP_MAX_FRAMES_IN_FLIGHT,
    PIPE_CAP_DMABUF,
    PIPE_CAP_PREFER_COMPUTE_BLIT_FOR_MULTIMEDIA,
+   PIPE_CAP_TGSI_DIV,
 };
 
 /**