42 static int alloc_gm(struct intel_vgpu *vgpu, bool high_gm)  in alloc_gm()  argument
44 	struct intel_gvt *gvt = vgpu->gvt;  in alloc_gm()
52 		node = &vgpu->gm.high_gm_node;  in alloc_gm()
53 		size = vgpu_hidden_sz(vgpu);  in alloc_gm()
58 		node = &vgpu->gm.low_gm_node;  in alloc_gm()
59 		size = vgpu_aperture_sz(vgpu);  in alloc_gm()
80 static int alloc_vgpu_gm(struct intel_vgpu *vgpu)  in alloc_vgpu_gm()  argument
82 	struct intel_gvt *gvt = vgpu->gvt;  in alloc_vgpu_gm()
86 	ret = alloc_gm(vgpu, false);  in alloc_vgpu_gm()
90 	ret = alloc_gm(vgpu, true);  in alloc_vgpu_gm()
94 	gvt_dbg_core("vgpu%d: alloc low GM start %llx size %llx\n", vgpu->id,  in alloc_vgpu_gm()
95 		     vgpu_aperture_offset(vgpu), vgpu_aperture_sz(vgpu));  in alloc_vgpu_gm()
97 	gvt_dbg_core("vgpu%d: alloc high GM start %llx size %llx\n", vgpu->id,  in alloc_vgpu_gm()
98 		     vgpu_hidden_offset(vgpu), vgpu_hidden_sz(vgpu));  in alloc_vgpu_gm()
103 	drm_mm_remove_node(&vgpu->gm.low_gm_node);  in alloc_vgpu_gm()
108 static void free_vgpu_gm(struct intel_vgpu *vgpu)  in free_vgpu_gm()  argument
110 	struct intel_gvt *gvt = vgpu->gvt;  in free_vgpu_gm()
114 	drm_mm_remove_node(&vgpu->gm.low_gm_node);  in free_vgpu_gm()
115 	drm_mm_remove_node(&vgpu->gm.high_gm_node);  in free_vgpu_gm()
120  * intel_vgpu_write_fence - write fence registers owned by a vGPU
121  * @vgpu: vGPU instance
122  * @fence: vGPU fence register number
125  * This function is used to write fence registers owned by a vGPU. The vGPU
129 void intel_vgpu_write_fence(struct intel_vgpu *vgpu,  in intel_vgpu_write_fence()  argument
132 	struct intel_gvt *gvt = vgpu->gvt;  in intel_vgpu_write_fence()
140 	if (drm_WARN_ON(&i915->drm, fence >= vgpu_fence_sz(vgpu)))  in intel_vgpu_write_fence()
143 	reg = vgpu->fence.regs[fence];  in intel_vgpu_write_fence()
158 static void _clear_vgpu_fence(struct intel_vgpu *vgpu)  in _clear_vgpu_fence()  argument
162 	for (i = 0; i < vgpu_fence_sz(vgpu); i++)  in _clear_vgpu_fence()
163 		intel_vgpu_write_fence(vgpu, i, 0);  in _clear_vgpu_fence()
166 static void free_vgpu_fence(struct intel_vgpu *vgpu)  in free_vgpu_fence()  argument
168 	struct intel_gvt *gvt = vgpu->gvt;  in free_vgpu_fence()
174 	if (drm_WARN_ON(&gvt->gt->i915->drm, !vgpu_fence_sz(vgpu)))  in free_vgpu_fence()
180 	_clear_vgpu_fence(vgpu);  in free_vgpu_fence()
181 	for (i = 0; i < vgpu_fence_sz(vgpu); i++) {  in free_vgpu_fence()
182 		reg = vgpu->fence.regs[i];  in free_vgpu_fence()
184 		vgpu->fence.regs[i] = NULL;  in free_vgpu_fence()
191 static int alloc_vgpu_fence(struct intel_vgpu *vgpu)  in alloc_vgpu_fence()  argument
193 	struct intel_gvt *gvt = vgpu->gvt;  in alloc_vgpu_fence()
204 	for (i = 0; i < vgpu_fence_sz(vgpu); i++) {  in alloc_vgpu_fence()
209 		vgpu->fence.regs[i] = reg;  in alloc_vgpu_fence()
212 	_clear_vgpu_fence(vgpu);  in alloc_vgpu_fence()
221 	for (i = 0; i < vgpu_fence_sz(vgpu); i++) {  in alloc_vgpu_fence()
222 		reg = vgpu->fence.regs[i];  in alloc_vgpu_fence()
226 		vgpu->fence.regs[i] = NULL;  in alloc_vgpu_fence()
233 static void free_resource(struct intel_vgpu *vgpu)  in free_resource()  argument
235 	struct intel_gvt *gvt = vgpu->gvt;  in free_resource()
237 	gvt->gm.vgpu_allocated_low_gm_size -= vgpu_aperture_sz(vgpu);  in free_resource()
238 	gvt->gm.vgpu_allocated_high_gm_size -= vgpu_hidden_sz(vgpu);  in free_resource()
239 	gvt->fence.vgpu_allocated_fence_num -= vgpu_fence_sz(vgpu);  in free_resource()
242 static int alloc_resource(struct intel_vgpu *vgpu,  in alloc_resource()  argument
245 	struct intel_gvt *gvt = vgpu->gvt;  in alloc_resource()
250 		gvt_vgpu_err("Invalid vGPU creation params\n");  in alloc_resource()
263 	vgpu_aperture_sz(vgpu) = ALIGN(request, I915_GTT_PAGE_SIZE);  in alloc_resource()
274 	vgpu_hidden_sz(vgpu) = ALIGN(request, I915_GTT_PAGE_SIZE);  in alloc_resource()
285 	vgpu_fence_sz(vgpu) = request;  in alloc_resource()
301  * intel_vgpu_free_resource() - free HW resource owned by a vGPU
302  * @vgpu: a vGPU
304  * This function is used to free the HW resource owned by a vGPU.
307 void intel_vgpu_free_resource(struct intel_vgpu *vgpu)  in intel_vgpu_free_resource()  argument
309 	free_vgpu_gm(vgpu);  in intel_vgpu_free_resource()
310 	free_vgpu_fence(vgpu);  in intel_vgpu_free_resource()
311 	free_resource(vgpu);  in intel_vgpu_free_resource()
315  * intel_vgpu_reset_resource - reset resource state owned by a vGPU
316  * @vgpu: a vGPU
318  * This function is used to reset resource state owned by a vGPU.
321 void intel_vgpu_reset_resource(struct intel_vgpu *vgpu)  in intel_vgpu_reset_resource()  argument
323 	struct intel_gvt *gvt = vgpu->gvt;  in intel_vgpu_reset_resource()
327 		_clear_vgpu_fence(vgpu);  in intel_vgpu_reset_resource()
331  * intel_vgpu_alloc_resource() - allocate HW resource for a vGPU
332  * @vgpu: vGPU
333  * @conf: vGPU creation params
335  * This function is used to allocate HW resource for a vGPU. User specifies
342 int intel_vgpu_alloc_resource(struct intel_vgpu *vgpu,  in intel_vgpu_alloc_resource()  argument
347 	ret = alloc_resource(vgpu, conf);  in intel_vgpu_alloc_resource()
351 	ret = alloc_vgpu_gm(vgpu);  in intel_vgpu_alloc_resource()
355 	ret = alloc_vgpu_fence(vgpu);  in intel_vgpu_alloc_resource()
362 	free_vgpu_gm(vgpu);  in intel_vgpu_alloc_resource()
364 	free_resource(vgpu);  in intel_vgpu_alloc_resource()