From 8f89743bddec87b7e0eefe9895274653ce341059 Mon Sep 17 00:00:00 2001 From: Jike Song Date: Thu, 3 Nov 2016 18:38:32 +0800 Subject: [PATCH] drm/i915/gvt: remove obsolete code for old kvmgt opregion Current GVT contains some obsolete logic originally cooked to support the old, non-vfio kvmgt, which is actually workarounds. We don't support that anymore, so it's safe to remove it and make a better framework. Signed-off-by: Jike Song Signed-off-by: Zhenyu Wang --- drivers/gpu/drm/i915/gvt/cfg_space.c | 5 ++-- drivers/gpu/drm/i915/gvt/hypercall.h | 3 +-- drivers/gpu/drm/i915/gvt/mpt.h | 10 ++------ drivers/gpu/drm/i915/gvt/opregion.c | 34 ++++------------------------ drivers/gpu/drm/i915/gvt/vgpu.c | 10 +------- 5 files changed, 11 insertions(+), 51 deletions(-) diff --git a/drivers/gpu/drm/i915/gvt/cfg_space.c b/drivers/gpu/drm/i915/gvt/cfg_space.c index 4c687740f5f1..865629a5c553 100644 --- a/drivers/gpu/drm/i915/gvt/cfg_space.c +++ b/drivers/gpu/drm/i915/gvt/cfg_space.c @@ -82,9 +82,8 @@ static int map_aperture(struct intel_vgpu *vgpu, bool map) ret = intel_gvt_hypervisor_map_gfn_to_mfn(vgpu, first_gfn, first_mfn, - vgpu_aperture_sz(vgpu) - >> PAGE_SHIFT, map, - GVT_MAP_APERTURE); + vgpu_aperture_sz(vgpu) >> + PAGE_SHIFT, map); if (ret) return ret; diff --git a/drivers/gpu/drm/i915/gvt/hypercall.h b/drivers/gpu/drm/i915/gvt/hypercall.h index 027ef558d91c..193fd38a96af 100644 --- a/drivers/gpu/drm/i915/gvt/hypercall.h +++ b/drivers/gpu/drm/i915/gvt/hypercall.h @@ -60,8 +60,7 @@ struct intel_gvt_mpt { unsigned long len); unsigned long (*gfn_to_mfn)(unsigned long handle, unsigned long gfn); int (*map_gfn_to_mfn)(unsigned long handle, unsigned long gfn, - unsigned long mfn, unsigned int nr, bool map, - int type); + unsigned long mfn, unsigned int nr, bool map); int (*set_trap_area)(unsigned long handle, u64 start, u64 end, bool map); }; diff --git a/drivers/gpu/drm/i915/gvt/mpt.h b/drivers/gpu/drm/i915/gvt/mpt.h index 67858782d327..15e08dcb3199 100644 --- a/drivers/gpu/drm/i915/gvt/mpt.h +++ b/drivers/gpu/drm/i915/gvt/mpt.h @@ -224,11 +224,6 @@ static inline unsigned long intel_gvt_hypervisor_gfn_to_mfn( return intel_gvt_host.mpt->gfn_to_mfn(vgpu->handle, gfn); } -enum { - GVT_MAP_APERTURE = 0, - GVT_MAP_OPREGION, -}; - /** * intel_gvt_hypervisor_map_gfn_to_mfn - map a GFN region to MFN * @vgpu: a vGPU @@ -236,7 +231,6 @@ enum { * @mfn: host PFN * @nr: amount of PFNs * @map: map or unmap - * @type: map type * * Returns: * Zero on success, negative error code if failed. @@ -244,10 +238,10 @@ enum { static inline int intel_gvt_hypervisor_map_gfn_to_mfn( struct intel_vgpu *vgpu, unsigned long gfn, unsigned long mfn, unsigned int nr, - bool map, int type) + bool map) { return intel_gvt_host.mpt->map_gfn_to_mfn(vgpu->handle, gfn, mfn, nr, - map, type); + map); } /** diff --git a/drivers/gpu/drm/i915/gvt/opregion.c b/drivers/gpu/drm/i915/gvt/opregion.c index 95218913b0bc..d2a0fbc896c3 100644 --- a/drivers/gpu/drm/i915/gvt/opregion.c +++ b/drivers/gpu/drm/i915/gvt/opregion.c @@ -73,7 +73,7 @@ static int map_vgpu_opregion(struct intel_vgpu *vgpu, bool map) } ret = intel_gvt_hypervisor_map_gfn_to_mfn(vgpu, vgpu_opregion(vgpu)->gfn[i], - mfn, 1, map, GVT_MAP_OPREGION); + mfn, 1, map); if (ret) { gvt_err("fail to map GFN to MFN, errno: %d\n", ret); return ret; @@ -89,28 +89,18 @@ static int map_vgpu_opregion(struct intel_vgpu *vgpu, bool map) */ void intel_vgpu_clean_opregion(struct intel_vgpu *vgpu) { - int i; - gvt_dbg_core("vgpu%d: clean vgpu opregion\n", vgpu->id); if (!vgpu_opregion(vgpu)->va) return; - if (intel_gvt_host.hypervisor_type == INTEL_GVT_HYPERVISOR_KVM) { - vunmap(vgpu_opregion(vgpu)->va); - for (i = 0; i < INTEL_GVT_OPREGION_PAGES; i++) { - if (vgpu_opregion(vgpu)->pages[i]) { - put_page(vgpu_opregion(vgpu)->pages[i]); - vgpu_opregion(vgpu)->pages[i] = NULL; - } - } - } else { + if (intel_gvt_host.hypervisor_type == INTEL_GVT_HYPERVISOR_XEN) { map_vgpu_opregion(vgpu, false); free_pages((unsigned long)vgpu_opregion(vgpu)->va, INTEL_GVT_OPREGION_PORDER); - } - vgpu_opregion(vgpu)->va = NULL; + vgpu_opregion(vgpu)->va = NULL; + } } /** @@ -137,22 +127,8 @@ int intel_vgpu_init_opregion(struct intel_vgpu *vgpu, u32 gpa) ret = map_vgpu_opregion(vgpu, true); if (ret) return ret; - } else { - gvt_dbg_core("emulate opregion from userspace\n"); - - /* - * If opregion pages are not allocated from host kenrel, - * most of the params are meaningless - */ - ret = intel_gvt_hypervisor_map_gfn_to_mfn(vgpu, - 0, /* not used */ - 0, /* not used */ - 2, /* not used */ - 1, - GVT_MAP_OPREGION); - if (ret) - return ret; } + return 0; } diff --git a/drivers/gpu/drm/i915/gvt/vgpu.c b/drivers/gpu/drm/i915/gvt/vgpu.c index de3c1876aae3..9b09f697862c 100644 --- a/drivers/gpu/drm/i915/gvt/vgpu.c +++ b/drivers/gpu/drm/i915/gvt/vgpu.c @@ -315,15 +315,9 @@ static struct intel_vgpu *__intel_gvt_create_vgpu(struct intel_gvt *gvt, if (ret) goto out_detach_hypervisor_vgpu; - if (intel_gvt_host.hypervisor_type == INTEL_GVT_HYPERVISOR_KVM) { - ret = intel_vgpu_init_opregion(vgpu, 0); - if (ret) - goto out_clean_gtt; - } - ret = intel_vgpu_init_display(vgpu); if (ret) - goto out_clean_opregion; + goto out_clean_gtt; ret = intel_vgpu_init_execlist(vgpu); if (ret) @@ -348,8 +342,6 @@ out_clean_execlist: intel_vgpu_clean_execlist(vgpu); out_clean_display: intel_vgpu_clean_display(vgpu); -out_clean_opregion: - intel_vgpu_clean_opregion(vgpu); out_clean_gtt: intel_vgpu_clean_gtt(vgpu); out_detach_hypervisor_vgpu: -- 2.20.1