mirror of
https://github.com/torvalds/linux.git
synced 2026-04-30 04:22:32 -04:00
c9a9f18d3a
The struct bus_type pointers in the functions intel_huc_register_gsc_notifier() and intel_huc_unregister_gsc_notifier() should be a const pointer, as the structure is not modified anywhere in the functions, and the pointer they are passed will be a const * in the near future. Cc: Jani Nikula <jani.nikula@linux.intel.com> Cc: Joonas Lahtinen <joonas.lahtinen@linux.intel.com> Cc: Rodrigo Vivi <rodrigo.vivi@intel.com> Cc: David Airlie <airlied@gmail.com> Cc: Daniel Vetter <daniel@ffwll.ch> Cc: Daniele Ceraolo Spurio <daniele.ceraolospurio@intel.com> Cc: Alan Previn <alan.previn.teres.alexis@intel.com> Cc: John Harrison <John.C.Harrison@Intel.com> Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Cc: Tony Ye <tony.ye@intel.com> Cc: Vitaly Lubart <vitaly.lubart@intel.com> Cc: intel-gfx@lists.freedesktop.org Cc: dri-devel@lists.freedesktop.org Acked-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com> Link: https://lore.kernel.org/r/20230313182918.1312597-30-gregkh@linuxfoundation.org Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
93 lines
2.3 KiB
C
93 lines
2.3 KiB
C
/* SPDX-License-Identifier: MIT */
|
|
/*
|
|
* Copyright © 2014-2019 Intel Corporation
|
|
*/
|
|
|
|
#ifndef _INTEL_HUC_H_
|
|
#define _INTEL_HUC_H_
|
|
|
|
#include "i915_reg_defs.h"
|
|
#include "i915_sw_fence.h"
|
|
#include "intel_uc_fw.h"
|
|
#include "intel_huc_fw.h"
|
|
|
|
#include <linux/notifier.h>
|
|
#include <linux/hrtimer.h>
|
|
|
|
struct bus_type;
|
|
|
|
enum intel_huc_delayed_load_status {
|
|
INTEL_HUC_WAITING_ON_GSC = 0,
|
|
INTEL_HUC_WAITING_ON_PXP,
|
|
INTEL_HUC_DELAYED_LOAD_ERROR,
|
|
};
|
|
|
|
struct intel_huc {
|
|
/* Generic uC firmware management */
|
|
struct intel_uc_fw fw;
|
|
|
|
/* HuC-specific additions */
|
|
struct {
|
|
i915_reg_t reg;
|
|
u32 mask;
|
|
u32 value;
|
|
} status;
|
|
|
|
struct {
|
|
struct i915_sw_fence fence;
|
|
struct hrtimer timer;
|
|
struct notifier_block nb;
|
|
enum intel_huc_delayed_load_status status;
|
|
} delayed_load;
|
|
};
|
|
|
|
void intel_huc_init_early(struct intel_huc *huc);
|
|
int intel_huc_init(struct intel_huc *huc);
|
|
void intel_huc_fini(struct intel_huc *huc);
|
|
void intel_huc_suspend(struct intel_huc *huc);
|
|
int intel_huc_auth(struct intel_huc *huc);
|
|
int intel_huc_wait_for_auth_complete(struct intel_huc *huc);
|
|
int intel_huc_check_status(struct intel_huc *huc);
|
|
void intel_huc_update_auth_status(struct intel_huc *huc);
|
|
bool intel_huc_is_authenticated(struct intel_huc *huc);
|
|
|
|
void intel_huc_register_gsc_notifier(struct intel_huc *huc, const struct bus_type *bus);
|
|
void intel_huc_unregister_gsc_notifier(struct intel_huc *huc, const struct bus_type *bus);
|
|
|
|
static inline int intel_huc_sanitize(struct intel_huc *huc)
|
|
{
|
|
intel_uc_fw_sanitize(&huc->fw);
|
|
return 0;
|
|
}
|
|
|
|
static inline bool intel_huc_is_supported(struct intel_huc *huc)
|
|
{
|
|
return intel_uc_fw_is_supported(&huc->fw);
|
|
}
|
|
|
|
static inline bool intel_huc_is_wanted(struct intel_huc *huc)
|
|
{
|
|
return intel_uc_fw_is_enabled(&huc->fw);
|
|
}
|
|
|
|
static inline bool intel_huc_is_used(struct intel_huc *huc)
|
|
{
|
|
GEM_BUG_ON(__intel_uc_fw_status(&huc->fw) == INTEL_UC_FIRMWARE_SELECTED);
|
|
return intel_uc_fw_is_available(&huc->fw);
|
|
}
|
|
|
|
static inline bool intel_huc_is_loaded_by_gsc(const struct intel_huc *huc)
|
|
{
|
|
return huc->fw.loaded_via_gsc;
|
|
}
|
|
|
|
static inline bool intel_huc_wait_required(struct intel_huc *huc)
|
|
{
|
|
return intel_huc_is_used(huc) && intel_huc_is_loaded_by_gsc(huc) &&
|
|
!intel_huc_is_authenticated(huc);
|
|
}
|
|
|
|
void intel_huc_load_status(struct intel_huc *huc, struct drm_printer *p);
|
|
|
|
#endif
|