drm/i915: Make I915_GEM_IDLE_TIMEOUT into a macro

Currently we use HZ/5 for detecting a dead gpu on startup, and we will
wish to reuse this value for detecting a dead gpu on suspend, so convert
it into a macro for later convenience.

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Reviewed-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20190307104530.21745-1-chris@chris-wilson.co.uk

diff --git a/drivers/gpu/drm/i915/i915_gem.c b/drivers/gpu/drm/i915/i915_gem.c
index 0b23cf3..eb90f73 100644 (file)
--- a/drivers/gpu/drm/i915/i915_gem.c
+++ b/drivers/gpu/drm/i915/i915_gem.c
@@ -4684,7 +4684,9 @@ static int __intel_engines_record_defaults(struct drm_i915_private *i915)
        if (err)
                goto err_active;
 
-       if (i915_gem_wait_for_idle(i915, I915_WAIT_LOCKED, HZ / 5)) {
+       if (i915_gem_wait_for_idle(i915,
+                                  I915_WAIT_LOCKED,
+                                  I915_GEM_IDLE_TIMEOUT)) {
                i915_gem_set_wedged(i915);
                err = -EIO; /* Caller will declare us wedged */
                goto err_active;

diff --git a/drivers/gpu/drm/i915/i915_gem.h b/drivers/gpu/drm/i915/i915_gem.h
index b0e4b97..74a2ddc 100644 (file)
--- a/drivers/gpu/drm/i915/i915_gem.h
+++ b/drivers/gpu/drm/i915/i915_gem.h
@@ -75,6 +75,8 @@ struct drm_i915_private;
 
 #define I915_NUM_ENGINES 8
 
+#define I915_GEM_IDLE_TIMEOUT (HZ / 5)
+
 void i915_gem_park(struct drm_i915_private *i915);
 void i915_gem_unpark(struct drm_i915_private *i915);