diff options
| author | Arkadiusz Hiler <arkadiusz.hiler@intel.com> | 2017-03-14 17:28:12 +0300 |
|---|---|---|
| committer | Joonas Lahtinen <joonas.lahtinen@linux.intel.com> | 2017-03-15 15:26:30 +0300 |
| commit | 8fc2a4e427991433ea6358117fdbcc07494ff8c5 (patch) | |
| tree | 6962b0f5f149386015df8090b242b33fce9bafe0 /drivers/gpu/drm/i915/intel_huc.c | |
| parent | 6cd5a72c357732ed7f4566545b9d58eb4fcb1aa2 (diff) | |
| download | linux-8fc2a4e427991433ea6358117fdbcc07494ff8c5.tar.xz | |
drm/i915/uc: Simplify firmware path handling
Currently fw->path values can represent one of three possible states:
1) NULL - device without the uC
2) '\0' - device with the uC but have no firmware
3) else - device with the uC and we have firmware
Second case is used only to WARN at a later stage.
We can WARN right away and merge cases 1 and 2.
Code can be even further simplified and common (HuC/GuC logic) happening
right before the fetch can be offloaded to the common function.
v2: fewer temporary variables, more straightforward flow (M. Wajdeczko)
v3: DRM_ERROR instead of WARN (M. Wajdeczko)
v4: coding standard (J. Lahtinen)
v5: non-trivial rebase
v6: remove path check, we are checking fetch status (M. Wajdeczko)
Cc: Anusha Srivatsa <anusha.srivatsa@intel.com>
Cc: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Cc: Michal Winiarski <michal.winiarski@intel.com>
Cc: Michal Wajdeczko <michal.wajdeczko@intel.com>
Cc: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Signed-off-by: Arkadiusz Hiler <arkadiusz.hiler@intel.com>
Reviewed-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Signed-off-by: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Diffstat (limited to 'drivers/gpu/drm/i915/intel_huc.c')
| -rw-r--r-- | drivers/gpu/drm/i915/intel_huc.c | 21 |
1 files changed, 6 insertions, 15 deletions
diff --git a/drivers/gpu/drm/i915/intel_huc.c b/drivers/gpu/drm/i915/intel_huc.c index 168aab1e15da..5fadd55790eb 100644 --- a/drivers/gpu/drm/i915/intel_huc.c +++ b/drivers/gpu/drm/i915/intel_huc.c @@ -155,7 +155,6 @@ static int huc_ucode_xfer(struct drm_i915_private *dev_priv) void intel_huc_init_fw(struct intel_huc *huc) { struct drm_i915_private *dev_priv = huc_to_i915(huc); - const char *fw_path = NULL; huc->fw.path = NULL; huc->fw.fetch_status = INTEL_UC_FIRMWARE_NONE; @@ -163,29 +162,21 @@ void intel_huc_init_fw(struct intel_huc *huc) huc->fw.fw = INTEL_UC_FW_TYPE_HUC; if (IS_SKYLAKE(dev_priv)) { - fw_path = I915_SKL_HUC_UCODE; + huc->fw.path = I915_SKL_HUC_UCODE; huc->fw.major_ver_wanted = SKL_HUC_FW_MAJOR; huc->fw.minor_ver_wanted = SKL_HUC_FW_MINOR; } else if (IS_BROXTON(dev_priv)) { - fw_path = I915_BXT_HUC_UCODE; + huc->fw.path = I915_BXT_HUC_UCODE; huc->fw.major_ver_wanted = BXT_HUC_FW_MAJOR; huc->fw.minor_ver_wanted = BXT_HUC_FW_MINOR; } else if (IS_KABYLAKE(dev_priv)) { - fw_path = I915_KBL_HUC_UCODE; + huc->fw.path = I915_KBL_HUC_UCODE; huc->fw.major_ver_wanted = KBL_HUC_FW_MAJOR; huc->fw.minor_ver_wanted = KBL_HUC_FW_MINOR; - } - - huc->fw.path = fw_path; - - if (fw_path == NULL) + } else { + DRM_ERROR("No HuC firmware known for platform with HuC!\n"); return; - - huc->fw.fetch_status = INTEL_UC_FIRMWARE_PENDING; - - DRM_DEBUG_DRIVER("HuC firmware pending, path %s\n", fw_path); - - WARN(huc->fw.path == NULL, "HuC present but no fw path\n"); + } intel_uc_prepare_fw(dev_priv, &huc->fw); } |