mirror of
https://github.com/AuxXxilium/linux_dsm_epyc7002.git
synced 2024-12-23 01:59:42 +07:00
c37d572820
Instead of dancing around uC on reset/suspend/resume scenarios,
explicitly sanitize uC when we sanitize GEM to force uC reload
and start from known beginning.
v2: don't forget about reset path (Daniele)
sanitize uc before gem initiated full reset (Daniele)
v3: drop redundant disable_communication in init_hw (Daniele)
Signed-off-by: Michal Wajdeczko <michal.wajdeczko@intel.com>
Cc: Daniele Ceraolo Spurio <daniele.ceraolospurio@intel.com>
Cc: Sagar Arun Kamble <sagar.a.kamble@intel.com>
Cc: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Michel Thierry <michel.thierry@intel.com>
Reviewed-by: Daniele Ceraolo Spurio <daniele.ceraolospurio@intel.com>
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Link: https://patchwork.freedesktop.org/patch/msgid/20180312130308.22952-3-michal.wajdeczko@intel.com
133 lines
3.7 KiB
C
133 lines
3.7 KiB
C
/*
|
|
* Copyright © 2014-2017 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_UC_FW_H_
|
|
#define _INTEL_UC_FW_H_
|
|
|
|
struct drm_printer;
|
|
struct drm_i915_private;
|
|
struct i915_vma;
|
|
|
|
/* Home of GuC, HuC and DMC firmwares */
|
|
#define INTEL_UC_FIRMWARE_URL "https://01.org/linuxgraphics/downloads/firmware"
|
|
|
|
enum intel_uc_fw_status {
|
|
INTEL_UC_FIRMWARE_FAIL = -1,
|
|
INTEL_UC_FIRMWARE_NONE = 0,
|
|
INTEL_UC_FIRMWARE_PENDING,
|
|
INTEL_UC_FIRMWARE_SUCCESS
|
|
};
|
|
|
|
enum intel_uc_fw_type {
|
|
INTEL_UC_FW_TYPE_GUC,
|
|
INTEL_UC_FW_TYPE_HUC
|
|
};
|
|
|
|
/*
|
|
* This structure encapsulates all the data needed during the process
|
|
* of fetching, caching, and loading the firmware image into the uC.
|
|
*/
|
|
struct intel_uc_fw {
|
|
const char *path;
|
|
size_t size;
|
|
struct drm_i915_gem_object *obj;
|
|
enum intel_uc_fw_status fetch_status;
|
|
enum intel_uc_fw_status load_status;
|
|
|
|
/*
|
|
* The firmware build process will generate a version header file with major and
|
|
* minor version defined. The versions are built into CSS header of firmware.
|
|
* i915 kernel driver set the minimal firmware version required per platform.
|
|
*/
|
|
u16 major_ver_wanted;
|
|
u16 minor_ver_wanted;
|
|
u16 major_ver_found;
|
|
u16 minor_ver_found;
|
|
|
|
enum intel_uc_fw_type type;
|
|
u32 header_size;
|
|
u32 header_offset;
|
|
u32 rsa_size;
|
|
u32 rsa_offset;
|
|
u32 ucode_size;
|
|
u32 ucode_offset;
|
|
};
|
|
|
|
static inline
|
|
const char *intel_uc_fw_status_repr(enum intel_uc_fw_status status)
|
|
{
|
|
switch (status) {
|
|
case INTEL_UC_FIRMWARE_FAIL:
|
|
return "FAIL";
|
|
case INTEL_UC_FIRMWARE_NONE:
|
|
return "NONE";
|
|
case INTEL_UC_FIRMWARE_PENDING:
|
|
return "PENDING";
|
|
case INTEL_UC_FIRMWARE_SUCCESS:
|
|
return "SUCCESS";
|
|
}
|
|
return "<invalid>";
|
|
}
|
|
|
|
static inline const char *intel_uc_fw_type_repr(enum intel_uc_fw_type type)
|
|
{
|
|
switch (type) {
|
|
case INTEL_UC_FW_TYPE_GUC:
|
|
return "GuC";
|
|
case INTEL_UC_FW_TYPE_HUC:
|
|
return "HuC";
|
|
}
|
|
return "uC";
|
|
}
|
|
|
|
static inline
|
|
void intel_uc_fw_init(struct intel_uc_fw *uc_fw, enum intel_uc_fw_type type)
|
|
{
|
|
uc_fw->path = NULL;
|
|
uc_fw->fetch_status = INTEL_UC_FIRMWARE_NONE;
|
|
uc_fw->load_status = INTEL_UC_FIRMWARE_NONE;
|
|
uc_fw->type = type;
|
|
}
|
|
|
|
static inline bool intel_uc_fw_is_selected(struct intel_uc_fw *uc_fw)
|
|
{
|
|
return uc_fw->path != NULL;
|
|
}
|
|
|
|
static inline void intel_uc_fw_sanitize(struct intel_uc_fw *uc_fw)
|
|
{
|
|
if (uc_fw->load_status == INTEL_UC_FIRMWARE_SUCCESS)
|
|
uc_fw->load_status = INTEL_UC_FIRMWARE_PENDING;
|
|
}
|
|
|
|
void intel_uc_fw_fetch(struct drm_i915_private *dev_priv,
|
|
struct intel_uc_fw *uc_fw);
|
|
int intel_uc_fw_upload(struct intel_uc_fw *uc_fw,
|
|
int (*xfer)(struct intel_uc_fw *uc_fw,
|
|
struct i915_vma *vma));
|
|
void intel_uc_fw_fini(struct intel_uc_fw *uc_fw);
|
|
void intel_uc_fw_dump(const struct intel_uc_fw *uc_fw, struct drm_printer *p);
|
|
|
|
#endif
|