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![Daniele Ceraolo Spurio](/assets/img/avatar_default.png)
GuC stores some data in there, which might be stale after a reset. We already reset the WQ head and tail, but more things are being moved to the descriptor with the interface updates. Instead of trying to track them one by one, always memset and init the descriptors from scratch after GuC is loaded. The code is also reorganized so that the above operations and the doorbell creation are grouped as "client enabling" v2: add proc_desc_fini for symmetry (Daniele), remove unneeded var init, add guc_is_alive() (Michal) Cc: Michal Wajdeczko <michal.wajdeczko@intel.com> Signed-off-by: Daniele Ceraolo Spurio <daniele.ceraolospurio@intel.com> Reviewed-by: Michal Wajdeczko <michal.wajdeczko@intel.com> Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk> Link: https://patchwork.freedesktop.org/patch/msgid/20181002215430.15049-1-daniele.ceraolospurio@intel.com
153 lines
4.3 KiB
C
153 lines
4.3 KiB
C
/*
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* Copyright © 2014-2017 Intel Corporation
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*
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* Permission is hereby granted, free of charge, to any person obtaining a
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* copy of this software and associated documentation files (the "Software"),
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* to deal in the Software without restriction, including without limitation
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* the rights to use, copy, modify, merge, publish, distribute, sublicense,
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* and/or sell copies of the Software, and to permit persons to whom the
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* Software is furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice (including the next
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* paragraph) shall be included in all copies or substantial portions of the
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* Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
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* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
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* IN THE SOFTWARE.
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*
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*/
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#ifndef _INTEL_UC_FW_H_
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#define _INTEL_UC_FW_H_
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struct drm_printer;
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struct drm_i915_private;
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struct i915_vma;
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/* Home of GuC, HuC and DMC firmwares */
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#define INTEL_UC_FIRMWARE_URL "https://git.kernel.org/pub/scm/linux/kernel/git/firmware/linux-firmware.git/tree/i915"
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enum intel_uc_fw_status {
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INTEL_UC_FIRMWARE_FAIL = -1,
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INTEL_UC_FIRMWARE_NONE = 0,
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INTEL_UC_FIRMWARE_PENDING,
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INTEL_UC_FIRMWARE_SUCCESS
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};
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enum intel_uc_fw_type {
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INTEL_UC_FW_TYPE_GUC,
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INTEL_UC_FW_TYPE_HUC
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};
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/*
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* This structure encapsulates all the data needed during the process
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* of fetching, caching, and loading the firmware image into the uC.
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*/
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struct intel_uc_fw {
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const char *path;
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size_t size;
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struct drm_i915_gem_object *obj;
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enum intel_uc_fw_status fetch_status;
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enum intel_uc_fw_status load_status;
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/*
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* The firmware build process will generate a version header file with major and
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* minor version defined. The versions are built into CSS header of firmware.
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* i915 kernel driver set the minimal firmware version required per platform.
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*/
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u16 major_ver_wanted;
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u16 minor_ver_wanted;
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u16 major_ver_found;
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u16 minor_ver_found;
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enum intel_uc_fw_type type;
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u32 header_size;
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u32 header_offset;
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u32 rsa_size;
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u32 rsa_offset;
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u32 ucode_size;
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u32 ucode_offset;
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};
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static inline
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const char *intel_uc_fw_status_repr(enum intel_uc_fw_status status)
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{
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switch (status) {
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case INTEL_UC_FIRMWARE_FAIL:
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return "FAIL";
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case INTEL_UC_FIRMWARE_NONE:
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return "NONE";
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case INTEL_UC_FIRMWARE_PENDING:
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return "PENDING";
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case INTEL_UC_FIRMWARE_SUCCESS:
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return "SUCCESS";
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}
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return "<invalid>";
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}
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static inline const char *intel_uc_fw_type_repr(enum intel_uc_fw_type type)
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{
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switch (type) {
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case INTEL_UC_FW_TYPE_GUC:
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return "GuC";
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case INTEL_UC_FW_TYPE_HUC:
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return "HuC";
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}
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return "uC";
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}
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static inline
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void intel_uc_fw_init(struct intel_uc_fw *uc_fw, enum intel_uc_fw_type type)
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{
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uc_fw->path = NULL;
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uc_fw->fetch_status = INTEL_UC_FIRMWARE_NONE;
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uc_fw->load_status = INTEL_UC_FIRMWARE_NONE;
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uc_fw->type = type;
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}
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static inline bool intel_uc_fw_is_selected(struct intel_uc_fw *uc_fw)
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{
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return uc_fw->path != NULL;
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}
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static inline bool intel_uc_fw_is_loaded(struct intel_uc_fw *uc_fw)
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{
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return uc_fw->load_status == INTEL_UC_FIRMWARE_SUCCESS;
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}
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static inline void intel_uc_fw_sanitize(struct intel_uc_fw *uc_fw)
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{
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if (intel_uc_fw_is_loaded(uc_fw))
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uc_fw->load_status = INTEL_UC_FIRMWARE_PENDING;
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}
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/**
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* intel_uc_fw_get_upload_size() - Get size of firmware needed to be uploaded.
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* @uc_fw: uC firmware.
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*
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* Get the size of the firmware and header that will be uploaded to WOPCM.
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*
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* Return: Upload firmware size, or zero on firmware fetch failure.
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*/
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static inline u32 intel_uc_fw_get_upload_size(struct intel_uc_fw *uc_fw)
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{
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if (uc_fw->fetch_status != INTEL_UC_FIRMWARE_SUCCESS)
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return 0;
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return uc_fw->header_size + uc_fw->ucode_size;
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}
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void intel_uc_fw_fetch(struct drm_i915_private *dev_priv,
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struct intel_uc_fw *uc_fw);
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int intel_uc_fw_upload(struct intel_uc_fw *uc_fw,
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int (*xfer)(struct intel_uc_fw *uc_fw,
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struct i915_vma *vma));
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void intel_uc_fw_fini(struct intel_uc_fw *uc_fw);
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void intel_uc_fw_dump(const struct intel_uc_fw *uc_fw, struct drm_printer *p);
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#endif
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