ilo: print a warning when PPGTT is disabled

Despite what the PRMs say, the driver appears to work fine when PPGTT is
disabled.  But at least print a warning in that case.

2 files changed, 4 insertions, 0 deletions

diff --git a/src/gallium/winsys/intel/drm/intel_drm_winsys.c b/src/gallium/winsys/intel/drm/intel_drm_winsys.c
index dfef9f4a914..250b36f524b 100644
--- a/src/gallium/winsys/intel/drm/intel_drm_winsys.c
+++ b/src/gallium/winsys/intel/drm/intel_drm_winsys.c
@@ -149,6 +149,9 @@ probe_winsys(struct intel_winsys *winsys)
    winsys->first_gem_ctx = drm_intel_gem_context_create(winsys->bufmgr);
    info->has_logical_context = (winsys->first_gem_ctx != NULL);
 
+   get_param(winsys, I915_PARAM_HAS_ALIASING_PPGTT, &val);
+   info->has_ppgtt = val;
+
    /* test TIMESTAMP read */
    info->has_timestamp = test_reg_read(winsys, 0x2358);
 
diff --git a/src/gallium/winsys/intel/intel_winsys.h b/src/gallium/winsys/intel/intel_winsys.h
index 3c9e6f267be..6571719d113 100644
--- a/src/gallium/winsys/intel/intel_winsys.h
+++ b/src/gallium/winsys/intel/intel_winsys.h
@@ -73,6 +73,7 @@ struct intel_winsys_info {
    bool has_llc;
    bool has_address_swizzling;
    bool has_logical_context;
+   bool has_ppgtt;
 
    /* valid registers for intel_winsys_read_reg() */
    bool has_timestamp;