// SPDX-License-Identifier: MIT /* * Copyright © 2023-2024 Intel Corporation */ #include <linux/bitfield.h> #include <linux/bsearch.h> #include <drm/drm_managed.h> #include <drm/drm_print.h> #include "abi/guc_actions_sriov_abi.h" #include "abi/guc_communication_mmio_abi.h" #include "abi/guc_klvs_abi.h" #include "abi/guc_relay_actions_abi.h" #include "regs/xe_gt_regs.h" #include "regs/xe_gtt_defs.h" #include "xe_assert.h" #include "xe_device.h" #include "xe_ggtt.h" #include "xe_gt_sriov_printk.h" #include "xe_gt_sriov_vf.h" #include "xe_gt_sriov_vf_types.h" #include "xe_guc.h" #include "xe_guc_hxg_helpers.h" #include "xe_guc_relay.h" #include "xe_mmio.h" #include "xe_sriov.h" #include "xe_uc_fw.h" #include "xe_wopcm.h" #define make_u64_from_u32(hi, lo) … static int guc_action_vf_reset(struct xe_guc *guc) { … } static int vf_reset_guc_state(struct xe_gt *gt) { … } static int guc_action_match_version(struct xe_guc *guc, u32 wanted_branch, u32 wanted_major, u32 wanted_minor, u32 *branch, u32 *major, u32 *minor, u32 *patch) { … } static void vf_minimum_guc_version(struct xe_gt *gt, u32 *branch, u32 *major, u32 *minor) { … } static void vf_wanted_guc_version(struct xe_gt *gt, u32 *branch, u32 *major, u32 *minor) { … } static int vf_handshake_with_guc(struct xe_gt *gt) { … } /** * xe_gt_sriov_vf_bootstrap - Query and setup GuC ABI interface version. * @gt: the &xe_gt * * This function is for VF use only. * It requires functional `GuC MMIO based communication`_. * * Return: 0 on success or a negative error code on failure. */ int xe_gt_sriov_vf_bootstrap(struct xe_gt *gt) { … } static int guc_action_query_single_klv(struct xe_guc *guc, u32 key, u32 *value, u32 value_len) { … } static int guc_action_query_single_klv32(struct xe_guc *guc, u32 key, u32 *value32) { … } static int guc_action_query_single_klv64(struct xe_guc *guc, u32 key, u64 *value64) { … } static bool has_gmdid(struct xe_device *xe) { … } /** * xe_gt_sriov_vf_gmdid - Query GMDID over MMIO. * @gt: the &xe_gt * * This function is for VF use only. * * Return: value of GMDID KLV on success or 0 on failure. */ u32 xe_gt_sriov_vf_gmdid(struct xe_gt *gt) { … } static int vf_get_ggtt_info(struct xe_gt *gt) { … } static int vf_get_lmem_info(struct xe_gt *gt) { … } static int vf_get_submission_cfg(struct xe_gt *gt) { … } static void vf_cache_gmdid(struct xe_gt *gt) { … } /** * xe_gt_sriov_vf_query_config - Query SR-IOV config data over MMIO. * @gt: the &xe_gt * * This function is for VF use only. * * Return: 0 on success or a negative error code on failure. */ int xe_gt_sriov_vf_query_config(struct xe_gt *gt) { … } /** * xe_gt_sriov_vf_guc_ids - VF GuC context IDs configuration. * @gt: the &xe_gt * * This function is for VF use only. * * Return: number of GuC context IDs assigned to VF. */ u16 xe_gt_sriov_vf_guc_ids(struct xe_gt *gt) { … } /** * xe_gt_sriov_vf_lmem - VF LMEM configuration. * @gt: the &xe_gt * * This function is for VF use only. * * Return: size of the LMEM assigned to VF. */ u64 xe_gt_sriov_vf_lmem(struct xe_gt *gt) { … } static int vf_balloon_ggtt(struct xe_gt *gt) { … } static void deballoon_ggtt(struct drm_device *drm, void *arg) { … } /** * xe_gt_sriov_vf_prepare_ggtt - Prepare a VF's GGTT configuration. * @gt: the &xe_gt * * This function is for VF use only. * * Return: 0 on success or a negative error code on failure. */ int xe_gt_sriov_vf_prepare_ggtt(struct xe_gt *gt) { … } static int relay_action_handshake(struct xe_gt *gt, u32 *major, u32 *minor) { … } static void vf_connect_pf(struct xe_gt *gt, u16 major, u16 minor) { … } static void vf_disconnect_pf(struct xe_gt *gt) { … } static int vf_handshake_with_pf(struct xe_gt *gt) { … } /** * xe_gt_sriov_vf_connect - Establish connection with the PF driver. * @gt: the &xe_gt * * This function is for VF use only. * * Return: 0 on success or a negative error code on failure. */ int xe_gt_sriov_vf_connect(struct xe_gt *gt) { … } static bool vf_is_negotiated(struct xe_gt *gt, u16 major, u16 minor) { … } static int vf_prepare_runtime_info(struct xe_gt *gt, unsigned int num_regs) { … } static int vf_query_runtime_info(struct xe_gt *gt) { … } static void vf_show_runtime_info(struct xe_gt *gt) { … } /** * xe_gt_sriov_vf_query_runtime - Query SR-IOV runtime data. * @gt: the &xe_gt * * This function is for VF use only. * * Return: 0 on success or a negative error code on failure. */ int xe_gt_sriov_vf_query_runtime(struct xe_gt *gt) { … } static int vf_runtime_reg_cmp(const void *a, const void *b) { … } static struct vf_runtime_reg *vf_lookup_reg(struct xe_gt *gt, u32 addr) { … } /** * xe_gt_sriov_vf_read32 - Get a register value from the runtime data. * @gt: the &xe_gt * @reg: the register to read * * This function is for VF use only. * This function shall be called after VF has connected to PF. * This function is dedicated for registers that VFs can't read directly. * * Return: register value obtained from the PF or 0 if not found. */ u32 xe_gt_sriov_vf_read32(struct xe_gt *gt, struct xe_reg reg) { … } /** * xe_gt_sriov_vf_print_config - Print VF self config. * @gt: the &xe_gt * @p: the &drm_printer * * This function is for VF use only. */ void xe_gt_sriov_vf_print_config(struct xe_gt *gt, struct drm_printer *p) { … } /** * xe_gt_sriov_vf_print_runtime - Print VF's runtime regs received from PF. * @gt: the &xe_gt * @p: the &drm_printer * * This function is for VF use only. */ void xe_gt_sriov_vf_print_runtime(struct xe_gt *gt, struct drm_printer *p) { … } /** * xe_gt_sriov_vf_print_version - Print VF ABI versions. * @gt: the &xe_gt * @p: the &drm_printer * * This function is for VF use only. */ void xe_gt_sriov_vf_print_version(struct xe_gt *gt, struct drm_printer *p) { … }
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