drm/i915: Retry gtt fault when out of fence registers

From Ville Syrjala
add2eeda1d6e3ead1d61db70e37615e5ef6c5e75 in linux-6.1.y/6.1.60
e339c6d628fe66c9b64bf31040a55770952aec57 in mainline linux

diff --git a/sys/dev/pci/drm/i915/gem/i915_gem_mman.c b/sys/dev/pci/drm/i915/gem/i915_gem_mman.c
index bae805b..ab8a3e0 100644 (file)
--- a/sys/dev/pci/drm/i915/gem/i915_gem_mman.c
+++ b/sys/dev/pci/drm/i915/gem/i915_gem_mman.c
@@ -270,6 +270,7 @@ static vm_fault_t i915_error_to_vmf_fault(int err)
        case 0:
        case -EAGAIN:
        case -ENOSPC: /* transient failure to evict? */
+       case -ENOBUFS: /* temporarily out of fences? */
        case -ERESTARTSYS:
        case -EINTR:
        case -EBUSY:
@@ -548,6 +549,7 @@ static int i915_error_to_vmf_fault(int err)
        case 0:
        case -EAGAIN:
        case -ENOSPC: /* transient failure to evict? */
+       case -ENOBUFS: /* temporarily out of fences? */
        case -ERESTART:
        case -EINTR:
        case -EBUSY: