The i915_cache_sharing file is a debugfs interface for gen 6-7 with no
validation or user. Remove it.
This also removes the last I915_WRITE() use in i915_debugfs.c.
Suggested-by: Chris Wilson <ch...@chris-wilson.co.uk>
Cc: Chris Wilson <ch...@chris-wilson.co.uk>
Cc: Rodrigo Vivi <rodrigo.v...@intel.com>
Reviewed-by: Chris Wilson <ch...@chris-wilson.co.uk>
Signed-off-by: Jani Nikula <jani.nik...@intel.com>
---
drivers/gpu/drm/i915/i915_debugfs.c | 50 -----------------------------
1 file changed, 50 deletions(-)
diff --git a/drivers/gpu/drm/i915/i915_debugfs.c
b/drivers/gpu/drm/i915/i915_debugfs.c
index 1ae6e022ddd5..694eb2705cd3 100644
--- a/drivers/gpu/drm/i915/i915_debugfs.c
+++ b/drivers/gpu/drm/i915/i915_debugfs.c
@@ -1492,55 +1492,6 @@ DEFINE_SIMPLE_ATTRIBUTE(i915_drop_caches_fops,
i915_drop_caches_get, i915_drop_caches_set,
"0x%08llx\n");
-static int
-i915_cache_sharing_get(void *data, u64 *val)
-{
- struct drm_i915_private *dev_priv = data;
- intel_wakeref_t wakeref;
- u32 snpcr = 0;
-
- if (!(IS_GEN_RANGE(dev_priv, 6, 7)))
- return -ENODEV;
-
- with_intel_runtime_pm(&dev_priv->runtime_pm, wakeref)
- snpcr = I915_READ(GEN6_MBCUNIT_SNPCR);
-
- *val = (snpcr & GEN6_MBC_SNPCR_MASK) >> GEN6_MBC_SNPCR_SHIFT;
-
- return 0;
-}
-
-static int
-i915_cache_sharing_set(void *data, u64 val)
-{
- struct drm_i915_private *dev_priv = data;
- intel_wakeref_t wakeref;
-
- if (!(IS_GEN_RANGE(dev_priv, 6, 7)))
- return -ENODEV;
-
- if (val > 3)
- return -EINVAL;
-
- drm_dbg(&dev_priv->drm,
- "Manually setting uncore sharing to %llu\n", val);
- with_intel_runtime_pm(&dev_priv->runtime_pm, wakeref) {
- u32 snpcr;
-
- /* Update the cache sharing policy here as well */
- snpcr = I915_READ(GEN6_MBCUNIT_SNPCR);
- snpcr &= ~GEN6_MBC_SNPCR_MASK;
- snpcr |= val << GEN6_MBC_SNPCR_SHIFT;
- I915_WRITE(GEN6_MBCUNIT_SNPCR, snpcr);
- }
-
- return 0;
-}
-
-DEFINE_SIMPLE_ATTRIBUTE(i915_cache_sharing_fops,
- i915_cache_sharing_get, i915_cache_sharing_set,
- "%llu\n");
-
static int i915_sseu_status(struct seq_file *m, void *unused)
{
struct drm_i915_private *i915 = node_to_i915(m->private);
@@ -1606,7 +1557,6 @@ static const struct i915_debugfs_files {
} i915_debugfs_files[] = {
{"i915_perf_noa_delay", &i915_perf_noa_delay_fops},
{"i915_wedged", &i915_wedged_fops},
- {"i915_cache_sharing", &i915_cache_sharing_fops},
{"i915_gem_drop_caches", &i915_drop_caches_fops},
#if IS_ENABLED(CONFIG_DRM_I915_CAPTURE_ERROR)
{"i915_error_state", &i915_error_state_fops},
--
2.20.1
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