[Intel-gfx] [PATCH] drm/i915: Capture PCI revision and subsytem details in error state

[Arun Siluvery]

Revision id along with device id is useful in better identification of the HW
and its limitations so include this detail in error state.

v2: make it clear that it is PCI revision and We might as well dump PCI
subsystem details while we update this (Ville, Chris).

Cc: Chris Wilson <chris at chris-wilson.co.uk>
Signed-off-by: Arun Siluvery <arun.siluvery at linux.intel.com>
---
 drivers/gpu/drm/i915/i915_gpu_error.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/drivers/gpu/drm/i915/i915_gpu_error.c b/drivers/gpu/drm/i915/i915_gpu_error.c
index 7eeb244..978c026 100644
--- a/drivers/gpu/drm/i915/i915_gpu_error.c
+++ b/drivers/gpu/drm/i915/i915_gpu_error.c
@@ -365,6 +365,10 @@ int i915_error_state_to_str(struct drm_i915_error_state_buf *m,
 	err_printf(m, "Reset count: %u\n", error->reset_count);
 	err_printf(m, "Suspend count: %u\n", error->suspend_count);
 	err_printf(m, "PCI ID: 0x%04x\n", dev->pdev->device);
+	err_printf(m, "PCI Revision: 0x%02x\n", dev->pdev->revision);
+	err_printf(m, "PCI Subsystem: %04x:%04x\n",
+		   dev->pdev->subsystem_vendor,
+		   dev->pdev->subsystem_device);
 	err_printf(m, "IOMMU enabled?: %d\n", error->iommu);
 
 	if (HAS_CSR(dev)) {
-- 
1.9.1