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intel: fix topology query

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i915 will report ENODEV on generations prior to Haswell because there
is no point in reporting values on those. This is prior any fusing
could happen on parts with identical PCI ids.

This query call was previously only triggered on generations that
support performance queries, which happens to match generation for
which i915 reports topology, but the commit pointed below started
using it on all generations.

Signed-off-by: Lionel Landwerlin <lionel.g.landwerlin@intel.com>
Gitlab: https://gitlab.freedesktop.org/mesa/mesa/issues/1860
Cc: <mesa-stable@lists.freedesktop.org>
Fixes: 96e1c945f2 ("i965: Move device info initialization to common code")
Reviewed-by: Mark Janes <mark.a.janes@intel.com>
(cherry picked from commit 1c6fdbc83c)
This commit is contained in:
Lionel Landwerlin 2019-10-02 17:13:06 +03:00 • committed by Dylan Baker
parent 0b97377f58
commit 676471a092
1 changed files with 3 additions and 0 deletions
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3
src/intel/dev/gen_device_info.c
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@ -1320,6 +1320,9 @@ query_topology(struct gen_device_info *devinfo, int fd)
if (gen_ioctl(fd, DRM_IOCTL_I915_QUERY, &query))
return false;
if (item.length < 0)
return false;
struct drm_i915_query_topology_info *topo_info =
(struct drm_i915_query_topology_info *) calloc(1, item.length);
item.data_ptr = (uintptr_t) topo_info;