[Mesa-dev] [PATCH v2 04/13] nvc0: reserve an area for ubos info in the driver constbuf

Ilia Mirkin imirkin at alum.mit.edu
Fri Apr 1 05:28:27 UTC 2016


Please see if you can't rejigger some stuff to make it all fit into 1024...
I know it will have to grow for images, but let's try to limit the damage...
On Mar 31, 2016 12:09 PM, "Samuel Pitoiset" <samuel.pitoiset at gmail.com>
wrote:

> The compute launch descriptor only allows to set up 8 CBs, but OpenGL
> requires at least 12 UBOs. To bypass this limitation, we store the ubos
> info into the driver constant buffer. This will be only used for Kepler.
>
> This bumps the size of each shader area from 1K to 2K.
>
> Signed-off-by: Samuel Pitoiset <samuel.pitoiset at gmail.com>
> ---
>  src/gallium/drivers/nouveau/nvc0/nvc0_compute.c        | 4 ++--
>  src/gallium/drivers/nouveau/nvc0/nvc0_context.h        | 6 +++---
>  src/gallium/drivers/nouveau/nvc0/nvc0_screen.c         | 2 +-
>  src/gallium/drivers/nouveau/nvc0/nvc0_state_validate.c | 8 ++++----
>  src/gallium/drivers/nouveau/nvc0/nvc0_tex.c            | 2 +-
>  src/gallium/drivers/nouveau/nvc0/nve4_compute.c        | 2 +-
>  6 files changed, 12 insertions(+), 12 deletions(-)
>
> diff --git a/src/gallium/drivers/nouveau/nvc0/nvc0_compute.c
> b/src/gallium/drivers/nouveau/nvc0/nvc0_compute.c
> index 6aaa7ce..360d25b 100644
> --- a/src/gallium/drivers/nouveau/nvc0/nvc0_compute.c
> +++ b/src/gallium/drivers/nouveau/nvc0/nvc0_compute.c
> @@ -206,7 +206,7 @@ nvc0_compute_validate_driverconst(struct nvc0_context
> *nvc0)
>     struct nvc0_screen *screen = nvc0->screen;
>
>     BEGIN_NVC0(push, NVC0_CP(CB_SIZE), 3);
> -   PUSH_DATA (push, 1024);
> +   PUSH_DATA (push, 2048);
>     PUSH_DATAh(push, screen->uniform_bo->offset + NVC0_CB_AUX_INFO(5));
>     PUSH_DATA (push, screen->uniform_bo->offset + NVC0_CB_AUX_INFO(5));
>     BEGIN_NVC0(push, NVC0_CP(CB_BIND), 1);
> @@ -224,7 +224,7 @@ nvc0_compute_validate_buffers(struct nvc0_context
> *nvc0)
>     int i;
>
>     BEGIN_NVC0(push, NVC0_CP(CB_SIZE), 3);
> -   PUSH_DATA (push, 1024);
> +   PUSH_DATA (push, 2048);
>     PUSH_DATAh(push, screen->uniform_bo->offset + NVC0_CB_AUX_INFO(s));
>     PUSH_DATA (push, screen->uniform_bo->offset + NVC0_CB_AUX_INFO(s));
>     BEGIN_1IC0(push, NVC0_CP(CB_POS), 1 + 4 * NVC0_MAX_BUFFERS);
> diff --git a/src/gallium/drivers/nouveau/nvc0/nvc0_context.h
> b/src/gallium/drivers/nouveau/nvc0/nvc0_context.h
> index 34dff6a..021caa6 100644
> --- a/src/gallium/drivers/nouveau/nvc0/nvc0_context.h
> +++ b/src/gallium/drivers/nouveau/nvc0/nvc0_context.h
> @@ -101,9 +101,9 @@
>  /* 6 user uniform buffers, at 64K each */
>  #define NVC0_CB_USR_INFO(s)         (s << 16)
>  #define NVC0_CB_USR_SIZE            (6 << 16)
> -/* 6 driver constbuts, at 1K each */
> -#define NVC0_CB_AUX_INFO(s)         NVC0_CB_USR_SIZE + (s << 10)
> -#define NVC0_CB_AUX_SIZE            (6 << 10)
> +/* 6 driver constbuts, at 2K each */
> +#define NVC0_CB_AUX_INFO(s)         NVC0_CB_USR_SIZE + (s << 11)
> +#define NVC0_CB_AUX_SIZE            (6 << 11)
>  /* XXX: Figure out what this UNK data is. */
>  #define NVC0_CB_AUX_UNK_INFO        0x000
>  #define NVC0_CB_AUX_UNK_SIZE        (8 * 4)
> diff --git a/src/gallium/drivers/nouveau/nvc0/nvc0_screen.c
> b/src/gallium/drivers/nouveau/nvc0/nvc0_screen.c
> index 553c001..bf011c4 100644
> --- a/src/gallium/drivers/nouveau/nvc0/nvc0_screen.c
> +++ b/src/gallium/drivers/nouveau/nvc0/nvc0_screen.c
> @@ -921,7 +921,7 @@ nvc0_screen_create(struct nouveau_device *dev)
>        /* TIC and TSC entries for each unit (nve4+ only) */
>        /* auxiliary constants (6 user clip planes, base instance id) */
>        BEGIN_NVC0(push, NVC0_3D(CB_SIZE), 3);
> -      PUSH_DATA (push, 1024);
> +      PUSH_DATA (push, 2048);
>        PUSH_DATAh(push, screen->uniform_bo->offset + NVC0_CB_AUX_INFO(i));
>        PUSH_DATA (push, screen->uniform_bo->offset + NVC0_CB_AUX_INFO(i));
>        BEGIN_NVC0(push, NVC0_3D(CB_BIND(i)), 1);
> diff --git a/src/gallium/drivers/nouveau/nvc0/nvc0_state_validate.c
> b/src/gallium/drivers/nouveau/nvc0/nvc0_state_validate.c
> index 9c64482..ad45323 100644
> --- a/src/gallium/drivers/nouveau/nvc0/nvc0_state_validate.c
> +++ b/src/gallium/drivers/nouveau/nvc0/nvc0_state_validate.c
> @@ -183,7 +183,7 @@ nvc0_validate_fb(struct nvc0_context *nvc0)
>
>      ms = 1 << ms_mode;
>      BEGIN_NVC0(push, NVC0_3D(CB_SIZE), 3);
> -    PUSH_DATA (push, 1024);
> +    PUSH_DATA (push, 2048);
>      PUSH_DATAh(push, screen->uniform_bo->offset + NVC0_CB_AUX_INFO(4));
>      PUSH_DATA (push, screen->uniform_bo->offset + NVC0_CB_AUX_INFO(4));
>      BEGIN_1IC0(push, NVC0_3D(CB_POS), 1 + 2 * ms);
> @@ -317,7 +317,7 @@ nvc0_upload_uclip_planes(struct nvc0_context *nvc0,
> unsigned s)
>     struct nvc0_screen *screen = nvc0->screen;
>
>     BEGIN_NVC0(push, NVC0_3D(CB_SIZE), 3);
> -   PUSH_DATA (push, 1024);
> +   PUSH_DATA (push, 2048);
>     PUSH_DATAh(push, screen->uniform_bo->offset + NVC0_CB_AUX_INFO(s));
>     PUSH_DATA (push, screen->uniform_bo->offset + NVC0_CB_AUX_INFO(s));
>     BEGIN_1IC0(push, NVC0_3D(CB_POS), PIPE_MAX_CLIP_PLANES * 4 + 1);
> @@ -484,7 +484,7 @@ nvc0_validate_buffers(struct nvc0_context *nvc0)
>
>     for (s = 0; s < 5; s++) {
>        BEGIN_NVC0(push, NVC0_3D(CB_SIZE), 3);
> -      PUSH_DATA (push, 1024);
> +      PUSH_DATA (push, 2048);
>        PUSH_DATAh(push, screen->uniform_bo->offset + NVC0_CB_AUX_INFO(s));
>        PUSH_DATA (push, screen->uniform_bo->offset + NVC0_CB_AUX_INFO(s));
>        BEGIN_1IC0(push, NVC0_3D(CB_POS), 1 + 4 * NVC0_MAX_BUFFERS);
> @@ -551,7 +551,7 @@ nvc0_validate_driverconst(struct nvc0_context *nvc0)
>
>     for (i = 0; i < 5; ++i) {
>        BEGIN_NVC0(push, NVC0_3D(CB_SIZE), 3);
> -      PUSH_DATA (push, 1024);
> +      PUSH_DATA (push, 2048);
>        PUSH_DATAh(push, screen->uniform_bo->offset + NVC0_CB_AUX_INFO(i));
>        PUSH_DATA (push, screen->uniform_bo->offset + NVC0_CB_AUX_INFO(i));
>        BEGIN_NVC0(push, NVC0_3D(CB_BIND(i)), 1);
> diff --git a/src/gallium/drivers/nouveau/nvc0/nvc0_tex.c
> b/src/gallium/drivers/nouveau/nvc0/nvc0_tex.c
> index ce6a6dc..9baebdf 100644
> --- a/src/gallium/drivers/nouveau/nvc0/nvc0_tex.c
> +++ b/src/gallium/drivers/nouveau/nvc0/nvc0_tex.c
> @@ -718,7 +718,7 @@ nve4_set_tex_handles(struct nvc0_context *nvc0)
>        if (!dirty)
>           continue;
>        BEGIN_NVC0(push, NVC0_3D(CB_SIZE), 3);
> -      PUSH_DATA (push, 1024);
> +      PUSH_DATA (push, 2048);
>        PUSH_DATAh(push, screen->uniform_bo->offset + NVC0_CB_AUX_INFO(s));
>        PUSH_DATA (push, screen->uniform_bo->offset + NVC0_CB_AUX_INFO(s));
>        do {
> diff --git a/src/gallium/drivers/nouveau/nvc0/nve4_compute.c
> b/src/gallium/drivers/nouveau/nvc0/nve4_compute.c
> index 5f34092..ee09abb 100644
> --- a/src/gallium/drivers/nouveau/nvc0/nve4_compute.c
> +++ b/src/gallium/drivers/nouveau/nvc0/nve4_compute.c
> @@ -502,7 +502,7 @@ nve4_compute_setup_launch_desc(struct nvc0_context
> *nvc0,
>                                   NVC0_CB_USR_INFO(5), 1 << 16);
>     }
>     nve4_cp_launch_desc_set_cb(desc, 7, screen->uniform_bo,
> -                              NVC0_CB_AUX_INFO(5), 1 << 10);
> +                              NVC0_CB_AUX_INFO(5), 1 << 11);
>  }
>
>  static inline struct nve4_cp_launch_desc *
> --
> 2.7.4
>
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