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| author | Chris Wilson <chris@chris-wilson.co.uk> | 2016-08-15 12:49:08 +0300 |
|---|---|---|
| committer | Chris Wilson <chris@chris-wilson.co.uk> | 2016-08-15 13:01:15 +0300 |
| commit | c84455b4baccce89384e45c53198c3c948bd97b6 (patch) | |
| tree | c13424fb336a8660295c4a04f9063ae5b6bf44eb /drivers/gpu/drm/i915/i915_gem_context.c | |
| parent | bde13ebdab0778b758b267ff9e38d6c10a42bdc3 (diff) | |
| download | linux-c84455b4baccce89384e45c53198c3c948bd97b6.tar.xz | |
drm/i915: Move debug only per-request pid tracking from request to ctx
Since contexts are not currently shared between userspace processes, we
have an exact correspondence between context creator and guilty batch
submitter. Therefore we can save some per-batch work by inspecting the
context->pid upon error instead. Note that we take the context's
creator's pid rather than the file's pid in order to better track fd
passed over sockets.
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Reviewed-by: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/1471254551-25805-29-git-send-email-chris@chris-wilson.co.uk
Diffstat (limited to 'drivers/gpu/drm/i915/i915_gem_context.c')
| -rw-r--r-- | drivers/gpu/drm/i915/i915_gem_context.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/drivers/gpu/drm/i915/i915_gem_context.c b/drivers/gpu/drm/i915/i915_gem_context.c index 98d2956f91f4..35950ee46a1d 100644 --- a/drivers/gpu/drm/i915/i915_gem_context.c +++ b/drivers/gpu/drm/i915/i915_gem_context.c @@ -158,6 +158,7 @@ void i915_gem_context_free(struct kref *ctx_ref) i915_vma_put(ce->state); } + put_pid(ctx->pid); list_del(&ctx->link); ida_simple_remove(&ctx->i915->context_hw_ida, ctx->hw_id); @@ -311,6 +312,9 @@ __create_hw_context(struct drm_device *dev, ret = DEFAULT_CONTEXT_HANDLE; ctx->file_priv = file_priv; + if (file_priv) + ctx->pid = get_task_pid(current, PIDTYPE_PID); + ctx->user_handle = ret; /* NB: Mark all slices as needing a remap so that when the context first * loads it will restore whatever remap state already exists. If there |