[Mesa-dev] [PATCH 4/4] radeon/winsys: keep screen pointer in winsys v2

Marek Olšák maraeo at gmail.com
Wed Sep 25 09:44:30 PDT 2013


For this patch:

Reviewed-by: Marek Olšák <marek.olsak at amd.com>

For the rest:

Acked-by: Marek Olšák <marek.olsak at amd.com>

I don't know much about the build system, so I can't say if the
patches are correct. If all the targets build successfully, then it's
probably fine.

Marek

On Wed, Sep 25, 2013 at 2:31 PM, Christian König
<deathsimple at vodafone.de> wrote:
> From: Christian König <christian.koenig at amd.com>
>
> Only create one screen for each winsys instance.
> This helps with buffer sharing and interop handling.
>
> v2: rebased and some minor cleanup
>
> Signed-off-by: Christian König <christian.koenig at amd.com>
> ---
>  src/gallium/drivers/r300/r300_screen.c            |  3 +++
>  src/gallium/drivers/r600/r600_pipe.c              |  3 +++
>  src/gallium/drivers/radeonsi/radeonsi_pipe.c      |  3 +++
>  src/gallium/targets/r300/drm_target.c             | 14 ++++++++------
>  src/gallium/targets/r600/drm_target.c             | 14 ++++++++------
>  src/gallium/targets/radeonsi/drm_target.c         | 14 ++++++++------
>  src/gallium/winsys/radeon/drm/radeon_drm_winsys.c |  4 ----
>  src/gallium/winsys/radeon/drm/radeon_winsys.h     | 15 +++++++++++++++
>  8 files changed, 48 insertions(+), 22 deletions(-)
>
> diff --git a/src/gallium/drivers/r300/r300_screen.c b/src/gallium/drivers/r300/r300_screen.c
> index 063bc09..125a1b5 100644
> --- a/src/gallium/drivers/r300/r300_screen.c
> +++ b/src/gallium/drivers/r300/r300_screen.c
> @@ -540,6 +540,9 @@ static void r300_destroy_screen(struct pipe_screen* pscreen)
>      struct r300_screen* r300screen = r300_screen(pscreen);
>      struct radeon_winsys *rws = radeon_winsys(pscreen);
>
> +    if (rws && !radeon_winsys_unref(rws))
> +      return;
> +
>      pipe_mutex_destroy(r300screen->cmask_mutex);
>
>      if (rws)
> diff --git a/src/gallium/drivers/r600/r600_pipe.c b/src/gallium/drivers/r600/r600_pipe.c
> index 50ff06c..d86bb18 100644
> --- a/src/gallium/drivers/r600/r600_pipe.c
> +++ b/src/gallium/drivers/r600/r600_pipe.c
> @@ -958,6 +958,9 @@ static void r600_destroy_screen(struct pipe_screen* pscreen)
>         if (rscreen == NULL)
>                 return;
>
> +       if (!radeon_winsys_unref(rscreen->b.ws))
> +               return;
> +
>         pipe_mutex_destroy(rscreen->aux_context_lock);
>         rscreen->aux_context->destroy(rscreen->aux_context);
>
> diff --git a/src/gallium/drivers/radeonsi/radeonsi_pipe.c b/src/gallium/drivers/radeonsi/radeonsi_pipe.c
> index 138268c..16ec51f 100644
> --- a/src/gallium/drivers/radeonsi/radeonsi_pipe.c
> +++ b/src/gallium/drivers/radeonsi/radeonsi_pipe.c
> @@ -648,6 +648,9 @@ static void r600_destroy_screen(struct pipe_screen* pscreen)
>         if (rscreen == NULL)
>                 return;
>
> +       if (!radeon_winsys_unref(rscreen->b.ws))
> +               return;
> +
>         if (rscreen->fences.bo) {
>                 struct r600_fence_block *entry, *tmp;
>
> diff --git a/src/gallium/targets/r300/drm_target.c b/src/gallium/targets/r300/drm_target.c
> index 111abd4..2c10bbd 100644
> --- a/src/gallium/targets/r300/drm_target.c
> +++ b/src/gallium/targets/r300/drm_target.c
> @@ -28,25 +28,27 @@
>  #include "target-helpers/inline_debug_helper.h"
>  #include "state_tracker/drm_driver.h"
>  #include "radeon/drm/radeon_drm_public.h"
> +#include "radeon/drm/radeon_winsys.h"
>  #include "r300/r300_public.h"
>
>  static struct pipe_screen *
>  create_screen(int fd)
>  {
>     struct radeon_winsys *sws;
> -   struct pipe_screen *screen;
>
>     sws = radeon_drm_winsys_create(fd);
>     if (!sws)
>        return NULL;
>
> -   screen = r300_screen_create(sws);
> -   if (!screen)
> -      return NULL;
> +   if (!sws->screen) {
> +      sws->screen = r300_screen_create(sws);
> +      if (!sws->screen)
> +         return NULL;
>
> -   screen = debug_screen_wrap(screen);
> +      sws->screen = debug_screen_wrap(sws->screen);
> +   }
>
> -   return screen;
> +   return sws->screen;
>  }
>
>  DRM_DRIVER_DESCRIPTOR("r300", "radeon", create_screen, NULL)
> diff --git a/src/gallium/targets/r600/drm_target.c b/src/gallium/targets/r600/drm_target.c
> index c93c4db..28004ac 100644
> --- a/src/gallium/targets/r600/drm_target.c
> +++ b/src/gallium/targets/r600/drm_target.c
> @@ -28,24 +28,26 @@
>  #include "state_tracker/drm_driver.h"
>  #include "target-helpers/inline_debug_helper.h"
>  #include "radeon/drm/radeon_drm_public.h"
> +#include "radeon/drm/radeon_winsys.h"
>  #include "r600/r600_public.h"
>
>  static struct pipe_screen *create_screen(int fd)
>  {
>     struct radeon_winsys *radeon;
> -   struct pipe_screen *screen;
>
>     radeon = radeon_drm_winsys_create(fd);
>     if (!radeon)
>        return NULL;
>
> -   screen = r600_screen_create(radeon);
> -   if (!screen)
> -      return NULL;
> +   if (!radeon->screen) {
> +      radeon->screen = r600_screen_create(radeon);
> +      if (!radeon->screen)
> +         return NULL;
>
> -   screen = debug_screen_wrap(screen);
> +      radeon->screen = debug_screen_wrap(radeon->screen);
> +   }
>
> -   return screen;
> +   return radeon->screen;
>  }
>
>  static const struct drm_conf_ret throttle_ret = {
> diff --git a/src/gallium/targets/radeonsi/drm_target.c b/src/gallium/targets/radeonsi/drm_target.c
> index 7e124ca..9eef368 100644
> --- a/src/gallium/targets/radeonsi/drm_target.c
> +++ b/src/gallium/targets/radeonsi/drm_target.c
> @@ -28,24 +28,26 @@
>  #include "state_tracker/drm_driver.h"
>  #include "target-helpers/inline_debug_helper.h"
>  #include "radeon/drm/radeon_drm_public.h"
> +#include "radeon/drm/radeon_winsys.h"
>  #include "radeonsi/radeonsi_public.h"
>
>  static struct pipe_screen *create_screen(int fd)
>  {
>     struct radeon_winsys *radeon;
> -   struct pipe_screen *screen;
>
>     radeon = radeon_drm_winsys_create(fd);
>     if (!radeon)
>        return NULL;
>
> -   screen = radeonsi_screen_create(radeon);
> -   if (!screen)
> -      return NULL;
> +   if (!radeon->screen) {
> +      radeon->screen = radeonsi_screen_create(radeon);
> +      if (!radeon->screen)
> +         return NULL;
>
> -   screen = debug_screen_wrap(screen);
> +      radeon->screen = debug_screen_wrap(radeon->screen);
> +   }
>
> -   return screen;
> +   return radeon->screen;
>  }
>
>  static const struct drm_conf_ret throttle_ret = {
> diff --git a/src/gallium/winsys/radeon/drm/radeon_drm_winsys.c b/src/gallium/winsys/radeon/drm/radeon_drm_winsys.c
> index 61f0913..4f43093 100644
> --- a/src/gallium/winsys/radeon/drm/radeon_drm_winsys.c
> +++ b/src/gallium/winsys/radeon/drm/radeon_drm_winsys.c
> @@ -424,10 +424,6 @@ static void radeon_winsys_destroy(struct radeon_winsys *rws)
>  {
>      struct radeon_drm_winsys *ws = (struct radeon_drm_winsys*)rws;
>
> -    if (!pipe_reference(&ws->base.reference, NULL)) {
> -        return;
> -    }
> -
>      if (ws->thread) {
>          ws->kill_thread = 1;
>          pipe_semaphore_signal(&ws->cs_queued);
> diff --git a/src/gallium/winsys/radeon/drm/radeon_winsys.h b/src/gallium/winsys/radeon/drm/radeon_winsys.h
> index 1367982..581cd84 100644
> --- a/src/gallium/winsys/radeon/drm/radeon_winsys.h
> +++ b/src/gallium/winsys/radeon/drm/radeon_winsys.h
> @@ -208,6 +208,11 @@ struct radeon_winsys {
>      struct pipe_reference reference;
>
>      /**
> +     * The screen object this winsys was created for
> +     */
> +    struct pipe_screen *screen;
> +
> +    /**
>       * Destroy this winsys.
>       *
>       * \param ws        The winsys this function is called from.
> @@ -501,6 +506,16 @@ struct radeon_winsys {
>                              enum radeon_value_id value);
>  };
>
> +/**
> + * Decrement the winsys reference count.
> + *
> + * \param ws The winsys this function is called for.
> + */
> +static INLINE boolean radeon_winsys_unref(struct radeon_winsys *ws)
> +{
> +   return pipe_reference(&ws->reference, NULL);
> +}
> +
>  static INLINE void radeon_emit(struct radeon_winsys_cs *cs, uint32_t value)
>  {
>      cs->buf[cs->cdw++] = value;
> --
> 1.8.1.2
>
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