diff options
author | Chris Wilson <chris@chris-wilson.co.uk> | 2020-02-28 13:17:10 +0000 |
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committer | Chris Wilson <chris@chris-wilson.co.uk> | 2020-02-28 22:03:19 +0000 |
commit | 4ec76dbeb62b5f897641af502b8309808e4e2d82 (patch) | |
tree | 7dce2fb35f4cb2fa9cf1b39dc9a07319d3ae0949 /drivers/gpu/drm/i915/i915_sysfs.c | |
parent | efbf928824820f2738f41271934f6ec2c6ebd587 (diff) | |
download | linux-4ec76dbeb62b5f897641af502b8309808e4e2d82.tar.bz2 |
drm/i915/gt: Expose engine properties via sysfs
Preliminary stub to add engines underneath /sys/class/drm/cardN/, so
that we can expose properties on each engine to the sysadmin.
To start with we have basic analogues of the i915_query ioctl so that we
can pretty print engine discovery from the shell, and flesh out the
directory structure. Later we will add writeable sysadmin properties such
as per-engine timeout controls.
An example tree of the engine properties on Braswell:
/sys/class/drm/card0
└── engine
├── bcs0
│ ├── capabilities
│ ├── class
│ ├── instance
│ ├── known_capabilities
│ └── name
├── rcs0
│ ├── capabilities
│ ├── class
│ ├── instance
│ ├── known_capabilities
│ └── name
├── vcs0
│ ├── capabilities
│ ├── class
│ ├── instance
│ ├── known_capabilities
│ └── name
└── vecs0
├── capabilities
├── class
├── instance
├── known_capabilities
└── name
v2: Include stringified capabilities
v3: Include all known capabilities for futureproofing.
v4: Combine the two caps loops into one
v5: Hide underneath Kconfig.unstable for wider discussion
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>
Cc: Daniele Ceraolo Spurio <daniele.ceraolospurio@intel.com>
Cc: Rodrigo Vivi <rodrigo.vivi@intel.com>
Acked-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Reviewed-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Tested-by: Steve Carbonari <steven.carbonari@intel.com>
Reviewed-by: Steve Carbonari <steven.carbonari@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20200228131716.3243616-1-chris@chris-wilson.co.uk
Diffstat (limited to 'drivers/gpu/drm/i915/i915_sysfs.c')
-rw-r--r-- | drivers/gpu/drm/i915/i915_sysfs.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/gpu/drm/i915/i915_sysfs.c b/drivers/gpu/drm/i915/i915_sysfs.c index c14d762bd652..45d32ef42787 100644 --- a/drivers/gpu/drm/i915/i915_sysfs.c +++ b/drivers/gpu/drm/i915/i915_sysfs.c @@ -32,6 +32,7 @@ #include "gt/intel_rc6.h" #include "gt/intel_rps.h" +#include "gt/sysfs_engines.h" #include "i915_drv.h" #include "i915_sysfs.h" @@ -606,6 +607,8 @@ void i915_setup_sysfs(struct drm_i915_private *dev_priv) drm_err(&dev_priv->drm, "RPS sysfs setup failed\n"); i915_setup_error_capture(kdev); + + intel_engines_add_sysfs(dev_priv); } void i915_teardown_sysfs(struct drm_i915_private *dev_priv) |