Files
linux/drivers/gpu/drm/i915/i915_params.h
Juha-Pekka Heikkila 5e2e6b595d drm/i915: switch to use kernel standard error injection
Switch error injection testing from i915_inject_probe_failure
to ALLOW_ERROR_INJECTION. Here taken out calls to
i915_inject_probe_failure and changed to use
ALLOW_ERROR_INJECTION for the same functions.

Below functions are dropped from testing since I
couldn't hit those at module bind time, testing
these would just fail the tests. To include these
in test would need to find way to cause resetting in i915
which would trigger these:

intel_gvt_init
intel_wopcm_init
intel_uc_fw_upload
intel_gt_init with expected -EIO (-EINVAL is tested)
lrc_init_wa_ctx
intel_huc_auth
guc_check_version_range
intel_uc_fw_fetch
uc_fw_xfer
__intel_uc_reset_hw
guc_enable_communication
uc_init_wopcm
..and all stages of __force_fw_fetch_failures

Signed-off-by: Juha-Pekka Heikkila <juhapekka.heikkila@gmail.com>
Reviewed-by: Jani Nikula <jani.nikula@intel.com>
Signed-off-by: Mika Kahola <mika.kahola@intel.com>
Link: https://patch.msgid.link/20251216080754.221974-2-juhapekka.heikkila@gmail.com
2025-12-18 11:59:20 +02:00

81 lines
3.2 KiB
C

/*
* Copyright © 2015 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 _I915_PARAMS_H_
#define _I915_PARAMS_H_
#include <linux/bitops.h>
#include <linux/cache.h> /* for __read_mostly */
struct drm_printer;
#define ENABLE_GUC_SUBMISSION BIT(0)
#define ENABLE_GUC_LOAD_HUC BIT(1)
#define ENABLE_GUC_MASK GENMASK(1, 0)
/*
* Invoke param, a function-like macro, for each i915 param, with arguments:
*
* param(type, name, value, mode)
*
* type: parameter type, one of {bool, int, unsigned int, unsigned long, char *}
* name: name of the parameter
* value: initial/default value of the parameter
* mode: debugfs file permissions, one of {0400, 0600, 0}, use 0 to not create
* debugfs file
*/
#define I915_PARAMS_FOR_EACH(param) \
param(int, modeset, -1, 0400) \
param(int, enable_guc, -1, 0400) \
param(int, guc_log_level, -1, 0400) \
param(char *, guc_firmware_path, NULL, 0400) \
param(char *, huc_firmware_path, NULL, 0400) \
param(char *, gsc_firmware_path, NULL, 0400) \
param(bool, memtest, false, 0400) \
param(int, mmio_debug, -IS_ENABLED(CONFIG_DRM_I915_DEBUG_MMIO), 0600) \
param(unsigned int, reset, 3, 0600) \
param(char *, force_probe, CONFIG_DRM_I915_FORCE_PROBE, 0400) \
param(unsigned int, request_timeout_ms, CONFIG_DRM_I915_REQUEST_TIMEOUT, CONFIG_DRM_I915_REQUEST_TIMEOUT ? 0600 : 0) \
param(unsigned int, lmem_size, 0, 0400) \
param(unsigned int, lmem_bar_size, 0, 0400) \
/* leave bools at the end to not create holes */ \
param(bool, enable_hangcheck, true, 0600) \
param(bool, error_capture, true, IS_ENABLED(CONFIG_DRM_I915_CAPTURE_ERROR) ? 0600 : 0) \
param(bool, enable_gvt, false, IS_ENABLED(CONFIG_DRM_I915_GVT) ? 0400 : 0) \
param(bool, enable_debug_only_api, false, IS_ENABLED(CONFIG_DRM_I915_REPLAY_GPU_HANGS_API) ? 0400 : 0)
#define MEMBER(T, member, ...) T member;
struct i915_params {
I915_PARAMS_FOR_EACH(MEMBER);
};
#undef MEMBER
extern struct i915_params i915_modparams __read_mostly;
void i915_params_dump(const struct i915_params *params, struct drm_printer *p);
void i915_params_copy(struct i915_params *dest, const struct i915_params *src);
void i915_params_free(struct i915_params *params);
#endif