anv: implement VK_EXT_global_priority extension

v2: add ANV_CONTEXT_REALTIME_PRIORITY (Chris)
    use unreachable with unknown priority (Samuel)

v3: add stubs in gem_stubs.c (Emil)
    use priority defines from gen_defines.h

v4: cleanup, add anv_gem_set_context_param (Jason)

Signed-off-by: Tapani Pälli <[email protected]>
Reviewed-by: Samuel Iglesias Gonsálvez <[email protected]> (v2)
Reviewed-by: Chris Wilson <[email protected]> (v2)
Reviewed-by: Emil Velikov <[email protected]> (v3)
Reviewed-by: Jason Ekstrand <[email protected]>

1 files changed, 32 insertions, 0 deletions

diff --git a/src/intel/vulkan/anv_gem.c b/src/intel/vulkan/anv_gem.c
index 34c09891086..93072c7d3b8 100644
--- a/src/intel/vulkan/anv_gem.c
+++ b/src/intel/vulkan/anv_gem.c
@@ -30,6 +30,7 @@
 #include <fcntl.h>
 
 #include "anv_private.h"
+#include "common/gen_defines.h"
 
 static int
 anv_ioctl(int fd, unsigned long request, void *arg)
@@ -303,6 +304,22 @@ close_and_return:
 }
 
 int
+anv_gem_set_context_priority(struct anv_device *device,
+                             int priority)
+{
+   return anv_gem_set_context_param(device->fd, device->context_id,
+                                    I915_CONTEXT_PARAM_PRIORITY,
+                                    priority);
+}
+
+bool
+anv_gem_has_context_priority(int fd)
+{
+   return !anv_gem_set_context_param(fd, 0, I915_CONTEXT_PARAM_PRIORITY,
+                                     GEN_CONTEXT_MEDIUM_PRIORITY);
+}
+
+int
 anv_gem_create_context(struct anv_device *device)
 {
    struct drm_i915_gem_context_create create = { 0 };
@@ -325,6 +342,21 @@ anv_gem_destroy_context(struct anv_device *device, int context)
 }
 
 int
+anv_gem_set_context_param(int fd, int context, uint32_t param, uint64_t value)
+{
+   struct drm_i915_gem_context_param p = {
+      .ctx_id = context,
+      .param = param,
+      .value = value,
+   };
+   int err = 0;
+
+   if (anv_ioctl(fd, DRM_IOCTL_I915_GEM_CONTEXT_SETPARAM, &p))
+      err = -errno;
+   return err;
+}
+
+int
 anv_gem_get_context_param(int fd, int context, uint32_t param, uint64_t *value)
 {
    struct drm_i915_gem_context_param gp = {