[PATCH 1/2] intel: Add get/set context parameter helpers

[David Weinehall]

Add helper functions to set/get GEM context parameters.

Signed-off-by: David Weinehall <david.weinehall at linux.intel.com>
---
 intel/intel_bufmgr.h     |  4 ++++
 intel/intel_bufmgr_gem.c | 57 ++++++++++++++++++++++++++++++++++++++++++++++++
 2 files changed, 61 insertions(+)

diff --git a/intel/intel_bufmgr.h b/intel/intel_bufmgr.h
index 285919e4c40d..b9af2361735d 100644
--- a/intel/intel_bufmgr.h
+++ b/intel/intel_bufmgr.h
@@ -203,6 +203,10 @@ 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);
 void drm_intel_gem_context_destroy(drm_intel_context *ctx);
+int drm_intel_gem_context_get_param(drm_intel_context *ctx,
+                                   uint64_t param, uint64_t *value);
+int drm_intel_gem_context_set_param(drm_intel_context *ctx,
+                                   uint64_t param, uint64_t value);
 int drm_intel_gem_bo_context_exec(drm_intel_bo *bo, drm_intel_context *ctx,
                                  int used, unsigned int flags);

diff --git a/intel/intel_bufmgr_gem.c b/intel/intel_bufmgr_gem.c
index 60c06fccfb20..2ac00cb3be3e 100644
--- a/intel/intel_bufmgr_gem.c
+++ b/intel/intel_bufmgr_gem.c
@@ -3326,6 +3326,63 @@ drm_intel_gem_context_destroy(drm_intel_context *ctx)
 }

 int
+drm_intel_gem_context_get_param(drm_intel_context *ctx,
+                               uint64_t param, uint64_t *value)
+{
+       drm_intel_bufmgr_gem *bufmgr_gem;
+       struct drm_i915_gem_context_param ctx_param;
+       int ret;
+
+       if (ctx == NULL)
+               return -EINVAL;
+
+       memclear(ctx_param);
+
+       bufmgr_gem = (drm_intel_bufmgr_gem *)ctx->bufmgr;
+
+       ctx_param.ctx_id = ctx->ctx_id;
+       ctx_param.param = param;
+
+       ret = drmIoctl(bufmgr_gem->fd, DRM_IOCTL_I915_GEM_CONTEXT_GETPARAM,
+                      &param);
+       if (ret != 0)
+               fprintf(stderr, "DRM_IOCTL_I915_GEM_CONTEXT_GETPARAM failed: 
%s\n",
+                       strerror(errno));
+       else
+               *value = ctx_param.value;
+
+       return ret;
+}
+
+int
+drm_intel_gem_context_set_param(drm_intel_context *ctx,
+                               uint64_t param, uint64_t value)
+{
+       drm_intel_bufmgr_gem *bufmgr_gem;
+       struct drm_i915_gem_context_param ctx_param;
+       int ret;
+
+       if (ctx == NULL)
+               return -EINVAL;
+
+       memclear(ctx_param);
+
+       bufmgr_gem = (drm_intel_bufmgr_gem *)ctx->bufmgr;
+
+       ctx_param.ctx_id = ctx->ctx_id;
+       ctx_param.param = param;
+       ctx_param.value = value;
+
+       ret = drmIoctl(bufmgr_gem->fd, DRM_IOCTL_I915_GEM_CONTEXT_SETPARAM,
+                      &param);
+       if (ret != 0)
+               fprintf(stderr, "DRM_IOCTL_I915_GEM_CONTEXT_SETPARAM failed: 
%s\n",
+                       strerror(errno));
+
+       return ret;
+}
+
+int
 drm_intel_get_reset_stats(drm_intel_context *ctx,
                          uint32_t *reset_count,
                          uint32_t *active,
-- 
2.1.4