From 023a125d1dded8e1c21bd9974373b697544ba18d Mon Sep 17 00:00:00 2001 From: Chris Wilson Date: Wed, 11 Sep 2019 12:46:55 +0100 Subject: [PATCH] drm/i915: Squeeze iommu status into debugfs/i915_capabilities There's no easy way of checking whether iommu is enabled for the GPU (you can grep dmesg if you know the device, or you can grep i915_gpu_info if that's available). We do have a central i915_capabilities with the intent of listing such pertinent information, so add the iommu status. Suggested-by: Martin Peres Signed-off-by: Chris Wilson Cc: Martin Peres Cc: Tomi Sarvela Cc: Mika Kuoppala Acked-by: Martin Peres Link: https://patchwork.freedesktop.org/patch/msgid/20190911114655.9254-1-chris@chris-wilson.co.uk --- drivers/gpu/drm/i915/i915_debugfs.c | 7 +++++++ 1 file changed, 7 insertions(+) diff --git a/drivers/gpu/drm/i915/i915_debugfs.c b/drivers/gpu/drm/i915/i915_debugfs.c index 708855e051b5..e5835337f022 100644 --- a/drivers/gpu/drm/i915/i915_debugfs.c +++ b/drivers/gpu/drm/i915/i915_debugfs.c @@ -61,11 +61,18 @@ static int i915_capabilities(struct seq_file *m, void *data) struct drm_i915_private *dev_priv = node_to_i915(m->private); const struct intel_device_info *info = INTEL_INFO(dev_priv); struct drm_printer p = drm_seq_file_printer(m); + const char *msg; seq_printf(m, "gen: %d\n", INTEL_GEN(dev_priv)); seq_printf(m, "platform: %s\n", intel_platform_name(info->platform)); seq_printf(m, "pch: %d\n", INTEL_PCH_TYPE(dev_priv)); + msg = "n/a"; +#ifdef CONFIG_INTEL_IOMMU + msg = enableddisabled(intel_iommu_gfx_mapped); +#endif + seq_printf(m, "iommu: %s\n", msg); + intel_device_info_dump_flags(info, &p); intel_device_info_dump_runtime(RUNTIME_INFO(dev_priv), &p); intel_driver_caps_print(&dev_priv->caps, &p); -- 2.30.2