65 lines
2.5 KiB
Diff
65 lines
2.5 KiB
Diff
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
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From: Shuo A Liu <shuo.a.liu@intel.com>
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Date: Thu, 7 May 2020 18:09:48 +0800
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Subject: [PATCH] drm/i915/gvt: Add a module parameter to disable GPU frequency
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adjustment for VGPU workload
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Add a module parameter to disable GPU frequency adjustment for VGPU
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workload, by default this parameter is false.
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Tracked-On: projectacrn/acrn-hypervisor#3918
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Signed-off-by: Junming Liu <junming.liu@intel.com>
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Reviewed-by: Zhao Yakui <yakui.zhao@intel.com>
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---
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drivers/gpu/drm/i915/gvt/scheduler.c | 3 ++-
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drivers/gpu/drm/i915/i915_params.c | 3 +++
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drivers/gpu/drm/i915/i915_params.h | 3 ++-
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3 files changed, 7 insertions(+), 2 deletions(-)
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diff --git a/drivers/gpu/drm/i915/gvt/scheduler.c b/drivers/gpu/drm/i915/gvt/scheduler.c
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index c6906218cda7..5c8e08c49473 100644
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--- a/drivers/gpu/drm/i915/gvt/scheduler.c
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+++ b/drivers/gpu/drm/i915/gvt/scheduler.c
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@@ -314,7 +314,8 @@ static int shadow_context_status_change(struct notifier_block *nb,
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switch (action) {
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case INTEL_CONTEXT_SCHEDULE_IN:
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- schedule_work(&gvt->active_hp_work);
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+ if (!i915_modparams.disable_hp_work)
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+ schedule_work(&gvt->active_hp_work);
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if (!i915_modparams.enable_context_restore) {
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atomic_set(&workload->shadow_ctx_active, 1);
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break;
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diff --git a/drivers/gpu/drm/i915/i915_params.c b/drivers/gpu/drm/i915/i915_params.c
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index 60ec862d2e36..ea65cf2de13a 100644
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--- a/drivers/gpu/drm/i915/i915_params.c
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+++ b/drivers/gpu/drm/i915/i915_params.c
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@@ -261,6 +261,9 @@ i915_param_named_unsafe(domain_plane_owners, ullong, 0400,
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i915_param_named_unsafe(enable_context_restore, bool, 0400,
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"To togger non-context regs save/restore feature(default:false)");
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+i915_param_named(disable_hp_work, bool, 0400,
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+ "To disable active the high-performance mode during vGPU busy(default:false)");
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+
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static __always_inline void _print_param(struct drm_printer *p,
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const char *name,
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const char *type,
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diff --git a/drivers/gpu/drm/i915/i915_params.h b/drivers/gpu/drm/i915/i915_params.h
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index 61d863ffa9d0..391578ed2b88 100644
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--- a/drivers/gpu/drm/i915/i915_params.h
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+++ b/drivers/gpu/drm/i915/i915_params.h
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@@ -78,7 +78,8 @@ struct drm_printer;
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param(int, gvt_workload_priority, 0) \
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param(bool, enable_initial_modeset, false) \
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param(bool, enable_gvt, false) \
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- param(bool, enable_context_restore, false)
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+ param(bool, enable_context_restore, false) \
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+ param(bool, disable_hp_work, false)
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#define MEMBER(T, member, ...) T member;
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struct i915_params {
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--
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https://clearlinux.org
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