[Mesa-dev] [PATCH v4 4/4] nvc0: add conservative rasterization support
Rhys Perry
pendingchaos02 at gmail.com
Wed Mar 28 19:22:18 UTC 2018
Subpixel precision bias, dilation and the post-snap mode are supported on
GM200 and newer. The pre-snap mode is supported for triangle primitives on
GP100.
---
src/gallium/drivers/nouveau/nvc0/mme/com9097.mme | 30 ++++++++++++++++++++++
src/gallium/drivers/nouveau/nvc0/mme/com9097.mme.h | 21 +++++++++++++++
src/gallium/drivers/nouveau/nvc0/nvc0_3d.xml.h | 5 ++++
src/gallium/drivers/nouveau/nvc0/nvc0_macros.h | 4 ++-
src/gallium/drivers/nouveau/nvc0/nvc0_screen.c | 19 +++++++++-----
src/gallium/drivers/nouveau/nvc0/nvc0_state.c | 14 ++++++++++
src/gallium/drivers/nouveau/nvc0/nvc0_stateobj.h | 2 +-
7 files changed, 87 insertions(+), 8 deletions(-)
diff --git a/src/gallium/drivers/nouveau/nvc0/mme/com9097.mme b/src/gallium/drivers/nouveau/nvc0/mme/com9097.mme
index 7c5ec8f52b..ecf9960667 100644
--- a/src/gallium/drivers/nouveau/nvc0/mme/com9097.mme
+++ b/src/gallium/drivers/nouveau/nvc0/mme/com9097.mme
@@ -550,3 +550,33 @@ qbw_postclamp:
qbw_done:
exit send (extrinsrt 0x0 $r4 0x0 0x10 0x10)
maddrsend 0x44
+
+/* NVC0_3D_MACRO_CONSERVATIVE_RASTER_STATE:
+ *
+ * This sets basically all the conservative rasterization state. It sets
+ * CONSERVATIVE_RASTER to one while doing so.
+ *
+ * arg = biasx | biasy<<4 | (dilation*4)<<8 | mode<<10
+ */
+.section #mme9097_conservative_raster_state
+ /* Mode and dilation */
+ maddr 0x1d00 /* SCRATCH[0] */
+ send 0x0 /* unknown */
+ send (extrinsrt 0x0 $r1 8 3 23) /* value */
+ mov $r2 0x7
+ send (extrinsrt 0x0 $r2 0 3 23) /* write mask */
+ maddr 0x18c4 /* FIRMWARE[4] */
+ mov $r2 0x831
+ send (extrinsrt 0x0 $r2 0 12 11) /* sends 0x418800 */
+ /* Subpixel precision */
+ mov $r2 (extrinsrt 0x0 $r1 0 3 0)
+ mov $r2 (extrinsrt $r2 $r1 4 4 8)
+ maddr 0x8287 /* SUBPIXEL_PRECISION[0] (incrementing by 8 methods) */
+ mov $r3 16 /* loop counter */
+crs_loop:
+ mov $r3 (add $r3 -1)
+ branz $r3 #crs_loop
+ send $r2
+ /* Enable */
+ exit maddr 0x1452 /* CONSERVATIVE_RASTER */
+ send 0x1
diff --git a/src/gallium/drivers/nouveau/nvc0/mme/com9097.mme.h b/src/gallium/drivers/nouveau/nvc0/mme/com9097.mme.h
index 9618da6e28..3eacda9a27 100644
--- a/src/gallium/drivers/nouveau/nvc0/mme/com9097.mme.h
+++ b/src/gallium/drivers/nouveau/nvc0/mme/com9097.mme.h
@@ -373,3 +373,24 @@ uint32_t mme9097_query_buffer_write[] = {
0x840100c2,
0x00110071,
};
+
+uint32_t mme9097_conservative_raster_state[] = {
+ 0x07400021,
+ 0x00000041,
+ 0xb8d04042,
+/* 0x000c: crs_loop */
+ 0x0001c211,
+ 0xb8c08042,
+ 0x06310021,
+ 0x020c4211,
+ 0x5b008042,
+ 0x00c04212,
+ 0x41085212,
+ 0x20a1c021,
+ 0x00040311,
+ 0xffffdb11,
+ 0xffffd817,
+ 0x00001041,
+ 0x051480a1,
+ 0x00004041,
+};
diff --git a/src/gallium/drivers/nouveau/nvc0/nvc0_3d.xml.h b/src/gallium/drivers/nouveau/nvc0/nvc0_3d.xml.h
index d7245fbcae..c5456e48b5 100644
--- a/src/gallium/drivers/nouveau/nvc0/nvc0_3d.xml.h
+++ b/src/gallium/drivers/nouveau/nvc0/nvc0_3d.xml.h
@@ -447,6 +447,10 @@ WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
#define NVC0_3D_VIEWPORT_TRANSLATE_Z__ESIZE 0x00000020
#define NVC0_3D_VIEWPORT_TRANSLATE_Z__LEN 0x00000010
+#define NVC0_3D_SUBPIXEL_PRECISION(i0) (0x00000a1c + 0x20*(i0))
+#define NVC0_3D_SUBPIXEL_PRECISION__ESIZE 0x00000020
+#define NVC0_3D_SUBPIXEL_PRECISION__LEN 0x00000010
+
#define NVC0_3D_VIEWPORT_HORIZ(i0) (0x00000c00 + 0x10*(i0))
#define NVC0_3D_VIEWPORT_HORIZ__ESIZE 0x00000010
#define NVC0_3D_VIEWPORT_HORIZ__LEN 0x00000010
@@ -780,6 +784,7 @@ WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
#define NVC0_3D_UNK1140 0x00001140
#define NVC0_3D_UNK1144 0x00001144
+#define NVC0_3D_CONSERVATIVE_RASTER 0x00001148
#define NVC0_3D_VTX_ATTR_DEFINE 0x0000114c
#define NVC0_3D_VTX_ATTR_DEFINE_ATTR__MASK 0x000000ff
diff --git a/src/gallium/drivers/nouveau/nvc0/nvc0_macros.h b/src/gallium/drivers/nouveau/nvc0/nvc0_macros.h
index eeacc714f3..7aa0633795 100644
--- a/src/gallium/drivers/nouveau/nvc0/nvc0_macros.h
+++ b/src/gallium/drivers/nouveau/nvc0/nvc0_macros.h
@@ -35,6 +35,8 @@
#define NVC0_3D_MACRO_QUERY_BUFFER_WRITE 0x00003858
-#define NVC0_CP_MACRO_LAUNCH_GRID_INDIRECT 0x00003860
+#define NVC0_CP_MACRO_LAUNCH_GRID_INDIRECT 0x00003860
+
+#define NVC0_3D_MACRO_CONSERVATIVE_RASTER_STATE 0x00003868
#endif /* __NVC0_MACROS_H__ */
diff --git a/src/gallium/drivers/nouveau/nvc0/nvc0_screen.c b/src/gallium/drivers/nouveau/nvc0/nvc0_screen.c
index ddbb3ec16d..75c360ab82 100644
--- a/src/gallium/drivers/nouveau/nvc0/nvc0_screen.c
+++ b/src/gallium/drivers/nouveau/nvc0/nvc0_screen.c
@@ -172,6 +172,8 @@ nvc0_screen_get_param(struct pipe_screen *pscreen, enum pipe_cap param)
return 30;
case PIPE_CAP_MAX_WINDOW_RECTANGLES:
return NVC0_MAX_WINDOW_RECTANGLES;
+ case PIPE_CAP_MAX_CONSERVATIVE_RASTER_SUBPIXEL_PRECISION_BIAS:
+ return class_3d >= GM200_3D_CLASS ? 8 : 0;
/* supported caps */
case PIPE_CAP_TEXTURE_MIRROR_CLAMP:
@@ -263,7 +265,12 @@ nvc0_screen_get_param(struct pipe_screen *pscreen, enum pipe_cap param)
case PIPE_CAP_TGSI_VS_LAYER_VIEWPORT:
case PIPE_CAP_TGSI_TES_LAYER_VIEWPORT:
case PIPE_CAP_POST_DEPTH_COVERAGE:
+ case PIPE_CAP_CONSERVATIVE_RASTER_POST_SNAP_TRIANGLES:
+ case PIPE_CAP_CONSERVATIVE_RASTER_POST_SNAP_POINTS_LINES:
+ case PIPE_CAP_CONSERVATIVE_RASTER_POST_DEPTH_COVERAGE:
return class_3d >= GM200_3D_CLASS;
+ case PIPE_CAP_CONSERVATIVE_RASTER_PRE_SNAP_TRIANGLES:
+ return class_3d >= GP100_3D_CLASS;
case PIPE_CAP_SEAMLESS_CUBE_MAP_PER_TEXTURE:
case PIPE_CAP_TGSI_BALLOT:
case PIPE_CAP_BINDLESS_TEXTURE:
@@ -309,12 +316,7 @@ nvc0_screen_get_param(struct pipe_screen *pscreen, enum pipe_cap param)
case PIPE_CAP_FENCE_SIGNAL:
case PIPE_CAP_CONSTBUF0_FLAGS:
case PIPE_CAP_PACKED_UNIFORMS:
- case PIPE_CAP_CONSERVATIVE_RASTER_POST_SNAP_TRIANGLES:
- case PIPE_CAP_CONSERVATIVE_RASTER_POST_SNAP_POINTS_LINES:
- case PIPE_CAP_CONSERVATIVE_RASTER_PRE_SNAP_TRIANGLES:
case PIPE_CAP_CONSERVATIVE_RASTER_PRE_SNAP_POINTS_LINES:
- case PIPE_CAP_CONSERVATIVE_RASTER_POST_DEPTH_COVERAGE:
- case PIPE_CAP_MAX_CONSERVATIVE_RASTER_SUBPIXEL_PRECISION_BIAS:
return 0;
case PIPE_CAP_VENDOR_ID:
@@ -444,6 +446,8 @@ nvc0_screen_get_shader_param(struct pipe_screen *pscreen,
static float
nvc0_screen_get_paramf(struct pipe_screen *pscreen, enum pipe_capf param)
{
+ const uint16_t class_3d = nouveau_screen(pscreen)->class_3d;
+
switch (param) {
case PIPE_CAPF_MAX_LINE_WIDTH:
case PIPE_CAPF_MAX_LINE_WIDTH_AA:
@@ -457,9 +461,11 @@ nvc0_screen_get_paramf(struct pipe_screen *pscreen, enum pipe_capf param)
case PIPE_CAPF_MAX_TEXTURE_LOD_BIAS:
return 15.0f;
case PIPE_CAPF_MIN_CONSERVATIVE_RASTER_DILATE:
+ return 0.0f;
case PIPE_CAPF_MAX_CONSERVATIVE_RASTER_DILATE:
+ return class_3d >= GM200_3D_CLASS ? 0.75f : 0.0f;
case PIPE_CAPF_CONSERVATIVE_RASTER_DILATE_GRANULARITY:
- return 0.0f;
+ return class_3d >= GM200_3D_CLASS ? 0.25f : 0.0f;
}
NOUVEAU_ERR("unknown PIPE_CAPF %d\n", param);
@@ -1207,6 +1213,7 @@ nvc0_screen_create(struct nouveau_device *dev)
MK_MACRO(NVC0_3D_MACRO_DRAW_ARRAYS_INDIRECT_COUNT, mme9097_draw_arrays_indirect_count);
MK_MACRO(NVC0_3D_MACRO_DRAW_ELEMENTS_INDIRECT_COUNT, mme9097_draw_elts_indirect_count);
MK_MACRO(NVC0_3D_MACRO_QUERY_BUFFER_WRITE, mme9097_query_buffer_write);
+ MK_MACRO(NVC0_3D_MACRO_CONSERVATIVE_RASTER_STATE, mme9097_conservative_raster_state);
MK_MACRO(NVC0_CP_MACRO_LAUNCH_GRID_INDIRECT, mme90c0_launch_grid_indirect);
BEGIN_NVC0(push, NVC0_3D(RASTERIZE_ENABLE), 1);
diff --git a/src/gallium/drivers/nouveau/nvc0/nvc0_state.c b/src/gallium/drivers/nouveau/nvc0/nvc0_state.c
index 99d45a238a..280fea452c 100644
--- a/src/gallium/drivers/nouveau/nvc0/nvc0_state.c
+++ b/src/gallium/drivers/nouveau/nvc0/nvc0_state.c
@@ -324,6 +324,20 @@ nvc0_rasterizer_state_create(struct pipe_context *pipe,
SB_IMMED_3D(so, PIXEL_CENTER_INTEGER, !cso->half_pixel_center);
+ if (class_3d >= GM200_3D_CLASS) {
+ if (cso->conservative_raster_mode != PIPE_CONSERVATIVE_RASTER_OFF) {
+ bool post_snap = cso->conservative_raster_mode ==
+ PIPE_CONSERVATIVE_RASTER_POST_SNAP;
+ uint32_t state = cso->subpixel_precision_x;
+ state |= cso->subpixel_precision_y << 4;
+ state |= (uint32_t)(cso->conservative_raster_dilate * 4) << 8;
+ state |= (post_snap || class_3d < GP100_3D_CLASS) ? 1 << 10 : 0;
+ SB_IMMED_3D(so, MACRO_CONSERVATIVE_RASTER_STATE, state);
+ } else {
+ SB_IMMED_3D(so, CONSERVATIVE_RASTER, 0);
+ }
+ }
+
assert(so->size <= ARRAY_SIZE(so->state));
return (void *)so;
}
diff --git a/src/gallium/drivers/nouveau/nvc0/nvc0_stateobj.h b/src/gallium/drivers/nouveau/nvc0/nvc0_stateobj.h
index 3006ed6195..e20032845c 100644
--- a/src/gallium/drivers/nouveau/nvc0/nvc0_stateobj.h
+++ b/src/gallium/drivers/nouveau/nvc0/nvc0_stateobj.h
@@ -23,7 +23,7 @@ struct nvc0_blend_stateobj {
struct nvc0_rasterizer_stateobj {
struct pipe_rasterizer_state pipe;
int size;
- uint32_t state[43];
+ uint32_t state[44];
};
struct nvc0_zsa_stateobj {
--
2.14.3
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