drm/i915/debugfs: Drop i915_hws_info

i915_hws_info() has not been kept upto date (missing new engines) and so
I consider it to be unused. HWS is included in the error state, which
would be an avenue to retrieving it if required in future (possibly via
i915_engine_info). As it is currently oopsing with an rpm testcase, just
remove it.

Fixes: 3b3f1650b1ca ("drm/i915: Allocate intel_engine_cs structure only for the enabled engines")
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=98838
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Cc: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/20161124093401.18852-1-chris@chris-wilson.co.uk
Reviewed-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
(cherry picked from commit 30576a2c462d9658508c3de67601aa565f973064)
Signed-off-by: Jani Nikula <jani.nikula@intel.com>

diff --git a/drivers/gpu/drm/i915/i915_debugfs.c b/drivers/gpu/drm/i915/i915_debugfs.c
index 96407f684f7f5458ac6c9027dcb109376c02a385..673fcba26fe2e88f896a16ed943795dabaaff23c 100644 (file)
--- a/drivers/gpu/drm/i915/i915_debugfs.c
+++ b/drivers/gpu/drm/i915/i915_debugfs.c
@@ -935,27 +935,6 @@ static int i915_gem_fence_regs_info(struct seq_file *m, void *data)
        return 0;
 }
 
-static int i915_hws_info(struct seq_file *m, void *data)
-{
-       struct drm_info_node *node = m->private;
-       struct drm_i915_private *dev_priv = node_to_i915(node);
-       struct intel_engine_cs *engine;
-       const u32 *hws;
-       int i;
-
-       engine = dev_priv->engine[(uintptr_t)node->info_ent->data];
-       hws = engine->status_page.page_addr;
-       if (hws == NULL)
-               return 0;
-
-       for (i = 0; i < 4096 / sizeof(u32) / 4; i += 4) {
-               seq_printf(m, "0x%08x: 0x%08x 0x%08x 0x%08x 0x%08x\n",
-                          i * 4,
-                          hws[i], hws[i + 1], hws[i + 2], hws[i + 3]);
-       }
-       return 0;
-}
-
 #if IS_ENABLED(CONFIG_DRM_I915_CAPTURE_ERROR)
 
 static ssize_t
@@ -5403,10 +5382,6 @@ static const struct drm_info_list i915_debugfs_list[] = {
        {"i915_gem_seqno", i915_gem_seqno_info, 0},
        {"i915_gem_fence_regs", i915_gem_fence_regs_info, 0},
        {"i915_gem_interrupt", i915_interrupt_info, 0},
-       {"i915_gem_hws", i915_hws_info, 0, (void *)RCS},
-       {"i915_gem_hws_blt", i915_hws_info, 0, (void *)BCS},
-       {"i915_gem_hws_bsd", i915_hws_info, 0, (void *)VCS},
-       {"i915_gem_hws_vebox", i915_hws_info, 0, (void *)VECS},
        {"i915_gem_batch_pool", i915_gem_batch_pool_info, 0},
        {"i915_guc_info", i915_guc_info, 0},
        {"i915_guc_load_status", i915_guc_load_status_info, 0},