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author | Alex Dai <yu.dai@intel.com> | 2015-08-12 14:43:36 (GMT) |
---|---|---|
committer | Daniel Vetter <daniel.vetter@ffwll.ch> | 2015-08-14 16:16:39 (GMT) |
commit | 33a732f407fed464df687370d7bb4d64533f9920 (patch) | |
tree | 686f112286029fccf27c51a56e7cd043e9426b48 /drivers/gpu/drm/i915/intel_guc.h | |
parent | 04a60f9ffa9a9ac05d5616408e3f11115ed1450a (diff) | |
download | linux-33a732f407fed464df687370d7bb4d64533f9920.tar.xz |
drm/i915: GuC-specific firmware loader
This fetches the required firmware image from the filesystem,
then loads it into the GuC's memory via a dedicated DMA engine.
This patch is derived from GuC loading work originally done by
Vinit Azad and Ben Widawsky.
v2:
Various improvements per review comments by Chris Wilson
v3:
Removed 'wait' parameter to intel_guc_ucode_load() as firmware
prefetch is no longer supported in the common firmware loader,
per Daniel Vetter's request.
Firmware checker callback fn now returns errno rather than bool.
v4:
Squash uC-independent code into GuC-specifc loader [Daniel Vetter]
Don't keep the driver working (by falling back to execlist mode)
if GuC firmware loading fails [Daniel Vetter]
v5:
Clarify WOPCM-related #defines [Tom O'Rourke]
Delete obsolete code no longer required with current h/w & f/w
[Tom O'Rourke]
Move the call to intel_guc_ucode_init() later, so that it can
allocate GEM objects, and have it fetch the firmware; then
intel_guc_ucode_load() doesn't need to fetch it later.
[Daniel Vetter].
v6:
Update comment describing intel_guc_ucode_load() [Tom O'Rourke]
Issue: VIZ-4884
Signed-off-by: Alex Dai <yu.dai@intel.com>
Signed-off-by: Dave Gordon <david.s.gordon@intel.com>
Reviewed-by: Tom O'Rourke <Tom.O'Rourke@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Diffstat (limited to 'drivers/gpu/drm/i915/intel_guc.h')
-rw-r--r-- | drivers/gpu/drm/i915/intel_guc.h | 67 |
1 files changed, 67 insertions, 0 deletions
diff --git a/drivers/gpu/drm/i915/intel_guc.h b/drivers/gpu/drm/i915/intel_guc.h new file mode 100644 index 0000000..2846b6d --- /dev/null +++ b/drivers/gpu/drm/i915/intel_guc.h @@ -0,0 +1,67 @@ +/* + * Copyright © 2014 Intel Corporation + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the "Software"), + * to deal in the Software without restriction, including without limitation + * the rights to use, copy, modify, merge, publish, distribute, sublicense, + * and/or sell copies of the Software, and to permit persons to whom the + * Software is furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice (including the next + * paragraph) shall be included in all copies or substantial portions of the + * Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL + * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER + * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING + * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS + * IN THE SOFTWARE. + * + */ +#ifndef _INTEL_GUC_H_ +#define _INTEL_GUC_H_ + +#include "intel_guc_fwif.h" +#include "i915_guc_reg.h" + +enum intel_guc_fw_status { + GUC_FIRMWARE_FAIL = -1, + GUC_FIRMWARE_NONE = 0, + GUC_FIRMWARE_PENDING, + GUC_FIRMWARE_SUCCESS +}; + +/* + * This structure encapsulates all the data needed during the process + * of fetching, caching, and loading the firmware image into the GuC. + */ +struct intel_guc_fw { + struct drm_device * guc_dev; + const char * guc_fw_path; + size_t guc_fw_size; + struct drm_i915_gem_object * guc_fw_obj; + enum intel_guc_fw_status guc_fw_fetch_status; + enum intel_guc_fw_status guc_fw_load_status; + + uint16_t guc_fw_major_wanted; + uint16_t guc_fw_minor_wanted; + uint16_t guc_fw_major_found; + uint16_t guc_fw_minor_found; +}; + +struct intel_guc { + struct intel_guc_fw guc_fw; + + uint32_t log_flags; +}; + +/* intel_guc_loader.c */ +extern void intel_guc_ucode_init(struct drm_device *dev); +extern int intel_guc_ucode_load(struct drm_device *dev); +extern void intel_guc_ucode_fini(struct drm_device *dev); +extern const char *intel_guc_fw_status_repr(enum intel_guc_fw_status status); + +#endif |