![Anusha Srivatsa](/assets/img/avatar_default.png)
The HuC authentication is done by host2guc call. The HuC RSA keys are sent to GuC for authentication. v2: rebased on top of drm-tip. Changed name format and upped version 1.7. v3: changed wait_for_atomic to wait_for v4: rebased. Rename intel_huc_auh() to intel_guc_auth_huc() and place the prototype in intel_guc.h,correct the comments. v5: rebased. Moved intel_guc_auth_huc from i915_guc_submission.c to intel_uc.c.Update dev to dev_priv in intel_guc_auth_huc(). Renamed HOST2GUC_ACTION_AUTHENTICATE_HUC TO INTEL_GUC_ACTION_ AUTHENTICATE_HUC v6: rebased. Add newline on DRM_ERRORs that already dont have one. v7: rebased. Replace wait_for with intel_wait_for_register() since the latter employs sleep optimisations for quick responses- as pointed out by Chris Wilson. v8: rebased. Cleanup the intel_guc_auth_huc() by removing checks already performed in earlier functions. Make comments more descriptive. v9: rebased. Changed the bias for pinning the HuC object. Move intel_guc_auth_huc() to intel_huc.c. Change DRM_DEBUGs to DRM_ERRORs in intel_guc_auth_huc(). Add return status to DRM_ERRORs. v10: Remove message not required for the user.. Cc: Chris Wilson <chris@chris-wilson.co.uk> Cc: Arkadiusz Hiler <arkadiusz.hiler@intel.com> Cc: Michal Wajdeczko <michal.wajdeczko@intel.com> Tested-by: Xiang Haihao <haihao.xiang@intel.com> Signed-off-by: Anusha Srivatsa <anusha.srivatsa@intel.com> Signed-off-by: Alex Dai <yu.dai@intel.com> Signed-off-by: Peter Antoine <peter.antoine@intel.com> Signed-off-by: Jani Nikula <jani.nikula@intel.com> Link: http://patchwork.freedesktop.org/patch/msgid/1484755558-1234-5-git-send-email-anusha.srivatsa@intel.com
538 lines
16 KiB
C
538 lines
16 KiB
C
/*
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* Copyright © 2014 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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#ifndef _INTEL_GUC_FWIF_H
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#define _INTEL_GUC_FWIF_H
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#define GFXCORE_FAMILY_GEN9 12
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#define GFXCORE_FAMILY_UNKNOWN 0x7fffffff
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#define GUC_CTX_PRIORITY_KMD_HIGH 0
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#define GUC_CTX_PRIORITY_HIGH 1
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#define GUC_CTX_PRIORITY_KMD_NORMAL 2
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#define GUC_CTX_PRIORITY_NORMAL 3
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#define GUC_CTX_PRIORITY_NUM 4
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#define GUC_MAX_GPU_CONTEXTS 1024
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#define GUC_INVALID_CTX_ID GUC_MAX_GPU_CONTEXTS
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#define GUC_RENDER_ENGINE 0
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#define GUC_VIDEO_ENGINE 1
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#define GUC_BLITTER_ENGINE 2
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#define GUC_VIDEOENHANCE_ENGINE 3
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#define GUC_VIDEO_ENGINE2 4
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#define GUC_MAX_ENGINES_NUM (GUC_VIDEO_ENGINE2 + 1)
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/* Work queue item header definitions */
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#define WQ_STATUS_ACTIVE 1
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#define WQ_STATUS_SUSPENDED 2
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#define WQ_STATUS_CMD_ERROR 3
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#define WQ_STATUS_ENGINE_ID_NOT_USED 4
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#define WQ_STATUS_SUSPENDED_FROM_RESET 5
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#define WQ_TYPE_SHIFT 0
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#define WQ_TYPE_BATCH_BUF (0x1 << WQ_TYPE_SHIFT)
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#define WQ_TYPE_PSEUDO (0x2 << WQ_TYPE_SHIFT)
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#define WQ_TYPE_INORDER (0x3 << WQ_TYPE_SHIFT)
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#define WQ_TARGET_SHIFT 10
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#define WQ_LEN_SHIFT 16
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#define WQ_NO_WCFLUSH_WAIT (1 << 27)
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#define WQ_PRESENT_WORKLOAD (1 << 28)
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#define WQ_WORKLOAD_SHIFT 29
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#define WQ_WORKLOAD_GENERAL (0 << WQ_WORKLOAD_SHIFT)
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#define WQ_WORKLOAD_GPGPU (1 << WQ_WORKLOAD_SHIFT)
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#define WQ_WORKLOAD_TOUCH (2 << WQ_WORKLOAD_SHIFT)
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#define WQ_RING_TAIL_SHIFT 20
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#define WQ_RING_TAIL_MAX 0x7FF /* 2^11 QWords */
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#define WQ_RING_TAIL_MASK (WQ_RING_TAIL_MAX << WQ_RING_TAIL_SHIFT)
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#define GUC_DOORBELL_ENABLED 1
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#define GUC_DOORBELL_DISABLED 0
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#define GUC_CTX_DESC_ATTR_ACTIVE (1 << 0)
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#define GUC_CTX_DESC_ATTR_PENDING_DB (1 << 1)
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#define GUC_CTX_DESC_ATTR_KERNEL (1 << 2)
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#define GUC_CTX_DESC_ATTR_PREEMPT (1 << 3)
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#define GUC_CTX_DESC_ATTR_RESET (1 << 4)
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#define GUC_CTX_DESC_ATTR_WQLOCKED (1 << 5)
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#define GUC_CTX_DESC_ATTR_PCH (1 << 6)
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#define GUC_CTX_DESC_ATTR_TERMINATED (1 << 7)
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/* The guc control data is 10 DWORDs */
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#define GUC_CTL_CTXINFO 0
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#define GUC_CTL_CTXNUM_IN16_SHIFT 0
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#define GUC_CTL_BASE_ADDR_SHIFT 12
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#define GUC_CTL_ARAT_HIGH 1
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#define GUC_CTL_ARAT_LOW 2
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#define GUC_CTL_DEVICE_INFO 3
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#define GUC_CTL_GTTYPE_SHIFT 0
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#define GUC_CTL_COREFAMILY_SHIFT 7
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#define GUC_CTL_LOG_PARAMS 4
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#define GUC_LOG_VALID (1 << 0)
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#define GUC_LOG_NOTIFY_ON_HALF_FULL (1 << 1)
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#define GUC_LOG_ALLOC_IN_MEGABYTE (1 << 3)
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#define GUC_LOG_CRASH_PAGES 1
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#define GUC_LOG_CRASH_SHIFT 4
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#define GUC_LOG_DPC_PAGES 7
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#define GUC_LOG_DPC_SHIFT 6
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#define GUC_LOG_ISR_PAGES 7
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#define GUC_LOG_ISR_SHIFT 9
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#define GUC_LOG_BUF_ADDR_SHIFT 12
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#define GUC_CTL_PAGE_FAULT_CONTROL 5
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#define GUC_CTL_WA 6
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#define GUC_CTL_WA_UK_BY_DRIVER (1 << 3)
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#define GUC_CTL_FEATURE 7
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#define GUC_CTL_VCS2_ENABLED (1 << 0)
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#define GUC_CTL_KERNEL_SUBMISSIONS (1 << 1)
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#define GUC_CTL_FEATURE2 (1 << 2)
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#define GUC_CTL_POWER_GATING (1 << 3)
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#define GUC_CTL_DISABLE_SCHEDULER (1 << 4)
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#define GUC_CTL_PREEMPTION_LOG (1 << 5)
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#define GUC_CTL_ENABLE_SLPC (1 << 7)
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#define GUC_CTL_RESET_ON_PREMPT_FAILURE (1 << 8)
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#define GUC_CTL_DEBUG 8
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#define GUC_LOG_VERBOSITY_SHIFT 0
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#define GUC_LOG_VERBOSITY_LOW (0 << GUC_LOG_VERBOSITY_SHIFT)
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#define GUC_LOG_VERBOSITY_MED (1 << GUC_LOG_VERBOSITY_SHIFT)
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#define GUC_LOG_VERBOSITY_HIGH (2 << GUC_LOG_VERBOSITY_SHIFT)
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#define GUC_LOG_VERBOSITY_ULTRA (3 << GUC_LOG_VERBOSITY_SHIFT)
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/* Verbosity range-check limits, without the shift */
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#define GUC_LOG_VERBOSITY_MIN 0
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#define GUC_LOG_VERBOSITY_MAX 3
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#define GUC_LOG_VERBOSITY_MASK 0x0000000f
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#define GUC_LOG_DESTINATION_MASK (3 << 4)
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#define GUC_LOG_DISABLED (1 << 6)
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#define GUC_PROFILE_ENABLED (1 << 7)
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#define GUC_WQ_TRACK_ENABLED (1 << 8)
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#define GUC_ADS_ENABLED (1 << 9)
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#define GUC_DEBUG_RESERVED (1 << 10)
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#define GUC_ADS_ADDR_SHIFT 11
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#define GUC_ADS_ADDR_MASK 0xfffff800
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#define GUC_CTL_RSRVD 9
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#define GUC_CTL_MAX_DWORDS (SOFT_SCRATCH_COUNT - 2) /* [1..14] */
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/**
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* DOC: GuC Firmware Layout
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*
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* The GuC firmware layout looks like this:
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*
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* +-------------------------------+
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* | uc_css_header |
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* | |
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* | contains major/minor version |
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* +-------------------------------+
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* | uCode |
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* +-------------------------------+
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* | RSA signature |
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* +-------------------------------+
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* | modulus key |
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* +-------------------------------+
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* | exponent val |
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* +-------------------------------+
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*
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* The firmware may or may not have modulus key and exponent data. The header,
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* uCode and RSA signature are must-have components that will be used by driver.
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* Length of each components, which is all in dwords, can be found in header.
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* In the case that modulus and exponent are not present in fw, a.k.a truncated
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* image, the length value still appears in header.
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*
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* Driver will do some basic fw size validation based on the following rules:
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*
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* 1. Header, uCode and RSA are must-have components.
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* 2. All firmware components, if they present, are in the sequence illustrated
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* in the layout table above.
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* 3. Length info of each component can be found in header, in dwords.
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* 4. Modulus and exponent key are not required by driver. They may not appear
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* in fw. So driver will load a truncated firmware in this case.
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*
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* HuC firmware layout is same as GuC firmware.
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*
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* HuC firmware css header is different. However, the only difference is where
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* the version information is saved. The uc_css_header is unified to support
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* both. Driver should get HuC version from uc_css_header.huc_sw_version, while
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* uc_css_header.guc_sw_version for GuC.
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*/
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struct uc_css_header {
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uint32_t module_type;
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/* header_size includes all non-uCode bits, including css_header, rsa
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* key, modulus key and exponent data. */
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uint32_t header_size_dw;
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uint32_t header_version;
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uint32_t module_id;
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uint32_t module_vendor;
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union {
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struct {
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uint8_t day;
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uint8_t month;
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uint16_t year;
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};
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uint32_t date;
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};
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uint32_t size_dw; /* uCode plus header_size_dw */
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uint32_t key_size_dw;
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uint32_t modulus_size_dw;
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uint32_t exponent_size_dw;
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union {
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struct {
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uint8_t hour;
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uint8_t min;
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uint16_t sec;
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};
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uint32_t time;
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};
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char username[8];
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char buildnumber[12];
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union {
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struct {
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uint32_t branch_client_version;
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uint32_t sw_version;
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} guc;
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struct {
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uint32_t sw_version;
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uint32_t reserved;
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} huc;
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};
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uint32_t prod_preprod_fw;
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uint32_t reserved[12];
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uint32_t header_info;
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} __packed;
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struct guc_doorbell_info {
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u32 db_status;
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u32 cookie;
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u32 reserved[14];
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} __packed;
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union guc_doorbell_qw {
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struct {
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u32 db_status;
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u32 cookie;
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};
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u64 value_qw;
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} __packed;
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#define GUC_MAX_DOORBELLS 256
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#define GUC_INVALID_DOORBELL_ID (GUC_MAX_DOORBELLS)
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#define GUC_DB_SIZE (PAGE_SIZE)
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#define GUC_WQ_SIZE (PAGE_SIZE * 2)
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/* Work item for submitting workloads into work queue of GuC. */
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struct guc_wq_item {
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u32 header;
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u32 context_desc;
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u32 ring_tail;
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u32 fence_id;
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} __packed;
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struct guc_process_desc {
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u32 context_id;
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u64 db_base_addr;
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u32 head;
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u32 tail;
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u32 error_offset;
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u64 wq_base_addr;
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u32 wq_size_bytes;
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u32 wq_status;
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u32 engine_presence;
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u32 priority;
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u32 reserved[30];
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} __packed;
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/* engine id and context id is packed into guc_execlist_context.context_id*/
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#define GUC_ELC_CTXID_OFFSET 0
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#define GUC_ELC_ENGINE_OFFSET 29
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/* The execlist context including software and HW information */
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struct guc_execlist_context {
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u32 context_desc;
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u32 context_id;
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u32 ring_status;
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u32 ring_lcra;
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u32 ring_begin;
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u32 ring_end;
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u32 ring_next_free_location;
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u32 ring_current_tail_pointer_value;
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u8 engine_state_submit_value;
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u8 engine_state_wait_value;
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u16 pagefault_count;
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u16 engine_submit_queue_count;
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} __packed;
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/*Context descriptor for communicating between uKernel and Driver*/
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struct guc_context_desc {
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u32 sched_common_area;
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u32 context_id;
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u32 pas_id;
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u8 engines_used;
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u64 db_trigger_cpu;
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u32 db_trigger_uk;
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u64 db_trigger_phy;
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u16 db_id;
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struct guc_execlist_context lrc[GUC_MAX_ENGINES_NUM];
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u8 attribute;
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u32 priority;
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u32 wq_sampled_tail_offset;
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u32 wq_total_submit_enqueues;
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u32 process_desc;
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u32 wq_addr;
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u32 wq_size;
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u32 engine_presence;
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u8 engine_suspended;
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u8 reserved0[3];
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u64 reserved1[1];
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u64 desc_private;
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} __packed;
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#define GUC_FORCEWAKE_RENDER (1 << 0)
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#define GUC_FORCEWAKE_MEDIA (1 << 1)
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#define GUC_POWER_UNSPECIFIED 0
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#define GUC_POWER_D0 1
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#define GUC_POWER_D1 2
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#define GUC_POWER_D2 3
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#define GUC_POWER_D3 4
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/* Scheduling policy settings */
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/* Reset engine upon preempt failure */
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#define POLICY_RESET_ENGINE (1<<0)
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/* Preempt to idle on quantum expiry */
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#define POLICY_PREEMPT_TO_IDLE (1<<1)
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#define POLICY_MAX_NUM_WI 15
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struct guc_policy {
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/* Time for one workload to execute. (in micro seconds) */
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u32 execution_quantum;
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u32 reserved1;
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/* Time to wait for a preemption request to completed before issuing a
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* reset. (in micro seconds). */
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u32 preemption_time;
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/* How much time to allow to run after the first fault is observed.
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* Then preempt afterwards. (in micro seconds) */
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u32 fault_time;
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u32 policy_flags;
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u32 reserved[2];
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} __packed;
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struct guc_policies {
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struct guc_policy policy[GUC_CTX_PRIORITY_NUM][GUC_MAX_ENGINES_NUM];
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/* In micro seconds. How much time to allow before DPC processing is
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* called back via interrupt (to prevent DPC queue drain starving).
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* Typically 1000s of micro seconds (example only, not granularity). */
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u32 dpc_promote_time;
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/* Must be set to take these new values. */
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u32 is_valid;
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/* Max number of WIs to process per call. A large value may keep CS
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* idle. */
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u32 max_num_work_items;
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u32 reserved[19];
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} __packed;
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/* GuC MMIO reg state struct */
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#define GUC_REGSET_FLAGS_NONE 0x0
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#define GUC_REGSET_POWERCYCLE 0x1
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#define GUC_REGSET_MASKED 0x2
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#define GUC_REGSET_ENGINERESET 0x4
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#define GUC_REGSET_SAVE_DEFAULT_VALUE 0x8
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#define GUC_REGSET_SAVE_CURRENT_VALUE 0x10
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#define GUC_REGSET_MAX_REGISTERS 25
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#define GUC_MMIO_WHITE_LIST_START 0x24d0
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#define GUC_MMIO_WHITE_LIST_MAX 12
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#define GUC_S3_SAVE_SPACE_PAGES 10
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struct guc_mmio_regset {
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struct __packed {
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u32 offset;
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u32 value;
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u32 flags;
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} registers[GUC_REGSET_MAX_REGISTERS];
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u32 values_valid;
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u32 number_of_registers;
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} __packed;
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struct guc_mmio_reg_state {
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struct guc_mmio_regset global_reg;
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struct guc_mmio_regset engine_reg[GUC_MAX_ENGINES_NUM];
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/* MMIO registers that are set as non privileged */
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struct __packed {
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u32 mmio_start;
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u32 offsets[GUC_MMIO_WHITE_LIST_MAX];
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u32 count;
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} mmio_white_list[GUC_MAX_ENGINES_NUM];
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} __packed;
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/* GuC Additional Data Struct */
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struct guc_ads {
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u32 reg_state_addr;
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u32 reg_state_buffer;
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u32 golden_context_lrca;
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u32 scheduler_policies;
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u32 reserved0[3];
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u32 eng_state_size[GUC_MAX_ENGINES_NUM];
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u32 reserved2[4];
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} __packed;
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/* GuC logging structures */
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enum guc_log_buffer_type {
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GUC_ISR_LOG_BUFFER,
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GUC_DPC_LOG_BUFFER,
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GUC_CRASH_DUMP_LOG_BUFFER,
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GUC_MAX_LOG_BUFFER
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};
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/**
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* DOC: GuC Log buffer Layout
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*
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* Page0 +-------------------------------+
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* | ISR state header (32 bytes) |
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* | DPC state header |
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* | Crash dump state header |
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* Page1 +-------------------------------+
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* | ISR logs |
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* Page9 +-------------------------------+
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* | DPC logs |
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* Page17 +-------------------------------+
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* | Crash Dump logs |
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* +-------------------------------+
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*
|
|
* Below state structure is used for coordination of retrieval of GuC firmware
|
|
* logs. Separate state is maintained for each log buffer type.
|
|
* read_ptr points to the location where i915 read last in log buffer and
|
|
* is read only for GuC firmware. write_ptr is incremented by GuC with number
|
|
* of bytes written for each log entry and is read only for i915.
|
|
* When any type of log buffer becomes half full, GuC sends a flush interrupt.
|
|
* GuC firmware expects that while it is writing to 2nd half of the buffer,
|
|
* first half would get consumed by Host and then get a flush completed
|
|
* acknowledgment from Host, so that it does not end up doing any overwrite
|
|
* causing loss of logs. So when buffer gets half filled & i915 has requested
|
|
* for interrupt, GuC will set flush_to_file field, set the sampled_write_ptr
|
|
* to the value of write_ptr and raise the interrupt.
|
|
* On receiving the interrupt i915 should read the buffer, clear flush_to_file
|
|
* field and also update read_ptr with the value of sample_write_ptr, before
|
|
* sending an acknowledgment to GuC. marker & version fields are for internal
|
|
* usage of GuC and opaque to i915. buffer_full_cnt field is incremented every
|
|
* time GuC detects the log buffer overflow.
|
|
*/
|
|
struct guc_log_buffer_state {
|
|
u32 marker[2];
|
|
u32 read_ptr;
|
|
u32 write_ptr;
|
|
u32 size;
|
|
u32 sampled_write_ptr;
|
|
union {
|
|
struct {
|
|
u32 flush_to_file:1;
|
|
u32 buffer_full_cnt:4;
|
|
u32 reserved:27;
|
|
};
|
|
u32 flags;
|
|
};
|
|
u32 version;
|
|
} __packed;
|
|
|
|
union guc_log_control {
|
|
struct {
|
|
u32 logging_enabled:1;
|
|
u32 reserved1:3;
|
|
u32 verbosity:4;
|
|
u32 reserved2:24;
|
|
};
|
|
u32 value;
|
|
} __packed;
|
|
|
|
/* This Action will be programmed in C180 - SOFT_SCRATCH_O_REG */
|
|
enum intel_guc_action {
|
|
INTEL_GUC_ACTION_DEFAULT = 0x0,
|
|
INTEL_GUC_ACTION_SAMPLE_FORCEWAKE = 0x6,
|
|
INTEL_GUC_ACTION_ALLOCATE_DOORBELL = 0x10,
|
|
INTEL_GUC_ACTION_DEALLOCATE_DOORBELL = 0x20,
|
|
INTEL_GUC_ACTION_LOG_BUFFER_FILE_FLUSH_COMPLETE = 0x30,
|
|
INTEL_GUC_ACTION_FORCE_LOG_BUFFER_FLUSH = 0x302,
|
|
INTEL_GUC_ACTION_ENTER_S_STATE = 0x501,
|
|
INTEL_GUC_ACTION_EXIT_S_STATE = 0x502,
|
|
INTEL_GUC_ACTION_SLPC_REQUEST = 0x3003,
|
|
INTEL_GUC_ACTION_AUTHENTICATE_HUC = 0x4000,
|
|
INTEL_GUC_ACTION_UK_LOG_ENABLE_LOGGING = 0x0E000,
|
|
INTEL_GUC_ACTION_LIMIT
|
|
};
|
|
|
|
/*
|
|
* The GuC sends its response to a command by overwriting the
|
|
* command in SS0. The response is distinguishable from a command
|
|
* by the fact that all the MASK bits are set. The remaining bits
|
|
* give more detail.
|
|
*/
|
|
#define INTEL_GUC_RECV_MASK ((u32)0xF0000000)
|
|
#define INTEL_GUC_RECV_IS_RESPONSE(x) ((u32)(x) >= INTEL_GUC_RECV_MASK)
|
|
#define INTEL_GUC_RECV_STATUS(x) (INTEL_GUC_RECV_MASK | (x))
|
|
|
|
/* GUC will return status back to SOFT_SCRATCH_O_REG */
|
|
enum intel_guc_status {
|
|
INTEL_GUC_STATUS_SUCCESS = INTEL_GUC_RECV_STATUS(0x0),
|
|
INTEL_GUC_STATUS_ALLOCATE_DOORBELL_FAIL = INTEL_GUC_RECV_STATUS(0x10),
|
|
INTEL_GUC_STATUS_DEALLOCATE_DOORBELL_FAIL = INTEL_GUC_RECV_STATUS(0x20),
|
|
INTEL_GUC_STATUS_GENERIC_FAIL = INTEL_GUC_RECV_STATUS(0x0000F000)
|
|
};
|
|
|
|
/* This action will be programmed in C1BC - SOFT_SCRATCH_15_REG */
|
|
enum intel_guc_recv_message {
|
|
INTEL_GUC_RECV_MSG_CRASH_DUMP_POSTED = BIT(1),
|
|
INTEL_GUC_RECV_MSG_FLUSH_LOG_BUFFER = BIT(3)
|
|
};
|
|
|
|
#endif
|