[Mesa-dev] [PATCH V3] r600/radeonsi: enable glsl/tgsi on-disk cache

[Marek Olšák]

v2 looked better, because HAVE_LLVM can be > 0, but r600g doesn't need
llvm_timestamp. (note that drivers/radeon is a static lib used by
r600g and radeonsi)

Marek

On Tue, Feb 21, 2017 at 12:31 AM, Timothy Arceri <tarceri at itsqueeze.com> wrote:
> For gpu generations that use LLVM we create a timestamp string
> containing both the LLVM and Mesa build times, otherwise we just
> use the Mesa build time.
>
> V2: share code in r600_pipe_common as suggested by Marek.
>
> V3: send the correct revision of V2
> ---
>  src/gallium/drivers/radeon/r600_pipe_common.c | 51 +++++++++++++++++++++++++++
>  src/gallium/drivers/radeon/r600_pipe_common.h |  3 ++
>  2 files changed, 54 insertions(+)
>
> diff --git a/src/gallium/drivers/radeon/r600_pipe_common.c b/src/gallium/drivers/radeon/r600_pipe_common.c
> index 1781584..614eef1 100644
> --- a/src/gallium/drivers/radeon/r600_pipe_common.c
> +++ b/src/gallium/drivers/radeon/r600_pipe_common.c
> @@ -43,6 +43,10 @@
>  #define HAVE_LLVM 0
>  #endif
>
> +#if HAVE_LLVM
> +#include <llvm-c/TargetMachine.h>
> +#endif
> +
>  #ifndef MESA_LLVM_VERSION_PATCH
>  #define MESA_LLVM_VERSION_PATCH 0
>  #endif
> @@ -779,6 +783,49 @@ static const char* r600_get_chip_name(struct r600_common_screen *rscreen)
>         }
>  }
>
> +static void r600_disk_cache_create(struct r600_common_screen *rscreen)
> +{
> +       uint32_t mesa_timestamp;
> +       if (disk_cache_get_function_timestamp(r600_disk_cache_create,
> +                                             &mesa_timestamp)) {
> +               char *timestamp_str;
> +               int res = -1;
> +#if HAVE_LLVM
> +               uint32_t llvm_timestamp;
> +               if (disk_cache_get_function_timestamp(LLVMInitializeAMDGPUTargetInfo,
> +                                                     &llvm_timestamp)) {
> +
> +                       res = asprintf(&timestamp_str, "%u_%u", mesa_timestamp,
> +                                      llvm_timestamp);
> +               } else {
> +#endif
> +                       /* We only use a Mesa only timestamp if less than SI
> +                        * because we must have an LLVM identifier to avoid
> +                        * shaders not being rebuild when the LLVM version
> +                        * changes.
> +                        */
> +                       if (rscreen->chip_class < SI) {
> +                               res = asprintf(&timestamp_str, "%u",
> +                                              mesa_timestamp);
> +                       }
> +#if HAVE_LLVM
> +               }
> +#endif
> +               if (res != -1) {
> +                       rscreen->disk_shader_cache =
> +                               disk_cache_create(r600_get_chip_name(rscreen),
> +                                                 timestamp_str);
> +                       free(timestamp_str);
> +               }
> +       }
> +}
> +
> +static struct disk_cache *r600_get_disk_shader_cache(struct pipe_screen *pscreen)
> +{
> +       struct r600_common_screen *rscreen = (struct r600_common_screen*)pscreen;
> +       return rscreen->disk_shader_cache;
> +}
> +
>  static const char* r600_get_name(struct pipe_screen* pscreen)
>  {
>         struct r600_common_screen *rscreen = (struct r600_common_screen*)pscreen;
> @@ -1234,6 +1281,7 @@ bool r600_common_screen_init(struct r600_common_screen *rscreen,
>         rscreen->b.get_name = r600_get_name;
>         rscreen->b.get_vendor = r600_get_vendor;
>         rscreen->b.get_device_vendor = r600_get_device_vendor;
> +       rscreen->b.get_disk_shader_cache = r600_get_disk_shader_cache;
>         rscreen->b.get_compute_param = r600_get_compute_param;
>         rscreen->b.get_paramf = r600_get_paramf;
>         rscreen->b.get_timestamp = r600_get_timestamp;
> @@ -1243,6 +1291,8 @@ bool r600_common_screen_init(struct r600_common_screen *rscreen,
>         rscreen->b.resource_from_user_memory = r600_buffer_from_user_memory;
>         rscreen->b.query_memory_info = r600_query_memory_info;
>
> +       r600_disk_cache_create(rscreen);
> +
>         if (rscreen->info.has_uvd) {
>                 rscreen->b.get_video_param = rvid_get_video_param;
>                 rscreen->b.is_video_format_supported = rvid_is_format_supported;
> @@ -1324,6 +1374,7 @@ void r600_destroy_common_screen(struct r600_common_screen *rscreen)
>
>         slab_destroy_parent(&rscreen->pool_transfers);
>
> +       disk_cache_destroy(rscreen->disk_shader_cache);
>         rscreen->ws->destroy(rscreen->ws);
>         FREE(rscreen);
>  }
> diff --git a/src/gallium/drivers/radeon/r600_pipe_common.h b/src/gallium/drivers/radeon/r600_pipe_common.h
> index e8dbf5d..92b9532 100644
> --- a/src/gallium/drivers/radeon/r600_pipe_common.h
> +++ b/src/gallium/drivers/radeon/r600_pipe_common.h
> @@ -36,6 +36,7 @@
>
>  #include "radeon/radeon_winsys.h"
>
> +#include "util/disk_cache.h"
>  #include "util/u_blitter.h"
>  #include "util/list.h"
>  #include "util/u_range.h"
> @@ -404,6 +405,8 @@ struct r600_common_screen {
>         bool                            has_cp_dma;
>         bool                            has_streamout;
>
> +       struct disk_cache               *disk_shader_cache;
> +
>         struct slab_parent_pool         pool_transfers;
>
>         /* Texture filter settings. */
> --
> 2.9.3
>
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