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intel: Add a getter for the intel_context ctx_id

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Exposing the u32 context ID makes it possible to define new drm kernel
interfaces based on the same IDs that e.g. execbuf uses to identify a
gem context, that aren't themselves abstracted by libdrm but need to be
used by libdrm/drm_intel_context based clients such as (parts of) i-g-t
or Mesa.

For example this can be used to configure an i915-perf stream to collect
metrics for a specific context.

v2: s/drm_intel_gem_context_get_context_id/drm_intel_gem_context_get_id/

Signed-off-by: Robert Bragg <robert@sixbynine.org>
Reviewed-by: Matthew Auld <matthew.auld@intel.com>
This commit is contained in:
Robert Bragg 2015-01-26 16:11:26 +00:00 • committed by Robert Bragg
parent befb6429f0
commit 770f6bc424
2 changed files with 13 additions and 0 deletions
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2
intel/intel_bufmgr.h
View file

@ -212,6 +212,8 @@ int drm_intel_bufmgr_gem_get_devid(drm_intel_bufmgr *bufmgr);
int drm_intel_gem_bo_wait(drm_intel_bo *bo, int64_t timeout_ns);
drm_intel_context *drm_intel_gem_context_create(drm_intel_bufmgr *bufmgr);
int drm_intel_gem_context_get_id(drm_intel_context *ctx,
uint32_t *ctx_id);
void drm_intel_gem_context_destroy(drm_intel_context *ctx);
int drm_intel_gem_bo_context_exec(drm_intel_bo *bo, drm_intel_context *ctx,
int used, unsigned int flags);

11
intel/intel_bufmgr_gem.c
View file

@ -3184,6 +3184,17 @@ drm_intel_gem_context_create(drm_intel_bufmgr *bufmgr)
return context;
}
int
drm_intel_gem_context_get_id(drm_intel_context *ctx, uint32_t *ctx_id)
{
if (ctx == NULL)
return -EINVAL;
*ctx_id = ctx->ctx_id;
return 0;
}
void
drm_intel_gem_context_destroy(drm_intel_context *ctx)
{