[Mesa-dev] [PATCH v4 4/4] nvc0: add conservative rasterization support
Ilia Mirkin
imirkin at alum.mit.edu
Sat Apr 7 21:28:19 UTC 2018
Reviewed-by: Ilia Mirkin <imirkin at alum.mit.edu>
On Wed, Mar 28, 2018 at 3:22 PM, Rhys Perry <pendingchaos02 at gmail.com> wrote:
> 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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