ff9fbe7ce1
Remove the local enableddisabled() implementation and adopt the str_enabled_disabled() from linux/string_helpers.h. Signed-off-by: Lucas De Marchi <lucas.demarchi@intel.com> Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch> Acked-by: Jani Nikula <jani.nikula@intel.com> Reviewed-by: Matt Roper <matthew.d.roper@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20220225234631.3725943-3-lucas.demarchi@intel.com
83 lines
1.7 KiB
C
83 lines
1.7 KiB
C
// SPDX-License-Identifier: MIT
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/*
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* Copyright © 2021 Intel Corporation
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*/
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#include <linux/string_helpers.h>
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#include "intel_guc_rc.h"
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#include "gt/intel_gt.h"
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#include "i915_drv.h"
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static bool __guc_rc_supported(struct intel_guc *guc)
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{
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/* GuC RC is unavailable for pre-Gen12 */
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return guc->submission_supported &&
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GRAPHICS_VER(guc_to_gt(guc)->i915) >= 12;
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}
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static bool __guc_rc_selected(struct intel_guc *guc)
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{
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if (!intel_guc_rc_is_supported(guc))
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return false;
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return guc->submission_selected;
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}
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void intel_guc_rc_init_early(struct intel_guc *guc)
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{
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guc->rc_supported = __guc_rc_supported(guc);
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guc->rc_selected = __guc_rc_selected(guc);
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}
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static int guc_action_control_gucrc(struct intel_guc *guc, bool enable)
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{
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u32 rc_mode = enable ? INTEL_GUCRC_FIRMWARE_CONTROL :
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INTEL_GUCRC_HOST_CONTROL;
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u32 action[] = {
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INTEL_GUC_ACTION_SETUP_PC_GUCRC,
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rc_mode
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};
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int ret;
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ret = intel_guc_send(guc, action, ARRAY_SIZE(action));
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ret = ret > 0 ? -EPROTO : ret;
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return ret;
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}
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static int __guc_rc_control(struct intel_guc *guc, bool enable)
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{
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struct intel_gt *gt = guc_to_gt(guc);
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struct drm_device *drm = &guc_to_gt(guc)->i915->drm;
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int ret;
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if (!intel_uc_uses_guc_rc(>->uc))
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return -EOPNOTSUPP;
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if (!intel_guc_is_ready(guc))
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return -EINVAL;
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ret = guc_action_control_gucrc(guc, enable);
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if (ret) {
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drm_err(drm, "Failed to %s GuC RC (%pe)\n",
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str_enable_disable(enable), ERR_PTR(ret));
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return ret;
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}
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drm_info(>->i915->drm, "GuC RC: %s\n",
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str_enabled_disabled(enable));
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return 0;
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}
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int intel_guc_rc_enable(struct intel_guc *guc)
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{
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return __guc_rc_control(guc, true);
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}
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int intel_guc_rc_disable(struct intel_guc *guc)
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{
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return __guc_rc_control(guc, false);
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}
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