37 static int nouveau_platform_power_up(struct nouveau_platform_gpu *gpu)  in nouveau_platform_power_up()  argument
41 	err = regulator_enable(gpu->vdd);  in nouveau_platform_power_up()
45 	err = clk_prepare_enable(gpu->clk);  in nouveau_platform_power_up()
48 	err = clk_prepare_enable(gpu->clk_pwr);  in nouveau_platform_power_up()
51 	clk_set_rate(gpu->clk_pwr, 204000000);  in nouveau_platform_power_up()
54 	reset_control_assert(gpu->rst);  in nouveau_platform_power_up()
62 	reset_control_deassert(gpu->rst);  in nouveau_platform_power_up()
68 	clk_disable_unprepare(gpu->clk_pwr);  in nouveau_platform_power_up()
70 	clk_disable_unprepare(gpu->clk);  in nouveau_platform_power_up()
72 	regulator_disable(gpu->vdd);  in nouveau_platform_power_up()
77 static int nouveau_platform_power_down(struct nouveau_platform_gpu *gpu)  in nouveau_platform_power_down()  argument
81 	reset_control_assert(gpu->rst);  in nouveau_platform_power_down()
84 	clk_disable_unprepare(gpu->clk_pwr);  in nouveau_platform_power_down()
85 	clk_disable_unprepare(gpu->clk);  in nouveau_platform_power_down()
88 	err = regulator_disable(gpu->vdd);  in nouveau_platform_power_down()
96 					 struct nouveau_platform_gpu *gpu)  in nouveau_platform_probe_iommu()  argument
101 	mutex_init(&gpu->iommu.mutex);  in nouveau_platform_probe_iommu()
104 		gpu->iommu.domain = iommu_domain_alloc(&platform_bus_type);  in nouveau_platform_probe_iommu()
105 		if (IS_ERR(gpu->iommu.domain))  in nouveau_platform_probe_iommu()
113 		pgsize_bitmap = gpu->iommu.domain->ops->pgsize_bitmap;  in nouveau_platform_probe_iommu()
115 			gpu->iommu.pgshift = PAGE_SHIFT;  in nouveau_platform_probe_iommu()
117 			gpu->iommu.pgshift = fls(pgsize_bitmap & ~PAGE_MASK);  in nouveau_platform_probe_iommu()
118 			if (gpu->iommu.pgshift == 0) {  in nouveau_platform_probe_iommu()
122 			gpu->iommu.pgshift -= 1;  in nouveau_platform_probe_iommu()
125 		err = iommu_attach_device(gpu->iommu.domain, dev);  in nouveau_platform_probe_iommu()
129 		err = nvkm_mm_init(&gpu->iommu._mm, 0,  in nouveau_platform_probe_iommu()
130 				   (1ULL << 40) >> gpu->iommu.pgshift, 1);  in nouveau_platform_probe_iommu()
134 		gpu->iommu.mm = &gpu->iommu._mm;  in nouveau_platform_probe_iommu()
140 	iommu_detach_device(gpu->iommu.domain, dev);  in nouveau_platform_probe_iommu()
143 	iommu_domain_free(gpu->iommu.domain);  in nouveau_platform_probe_iommu()
146 	gpu->iommu.domain = NULL;  in nouveau_platform_probe_iommu()
147 	gpu->iommu.pgshift = 0;  in nouveau_platform_probe_iommu()
152 					  struct nouveau_platform_gpu *gpu)  in nouveau_platform_remove_iommu()  argument
154 	if (gpu->iommu.domain) {  in nouveau_platform_remove_iommu()
155 		nvkm_mm_fini(&gpu->iommu._mm);  in nouveau_platform_remove_iommu()
156 		iommu_detach_device(gpu->iommu.domain, dev);  in nouveau_platform_remove_iommu()
157 		iommu_domain_free(gpu->iommu.domain);  in nouveau_platform_remove_iommu()
163 	struct nouveau_platform_gpu *gpu;  in nouveau_platform_probe()  local
168 	gpu = devm_kzalloc(&pdev->dev, sizeof(*gpu), GFP_KERNEL);  in nouveau_platform_probe()
169 	if (!gpu)  in nouveau_platform_probe()
172 	gpu->vdd = devm_regulator_get(&pdev->dev, "vdd");  in nouveau_platform_probe()
173 	if (IS_ERR(gpu->vdd))  in nouveau_platform_probe()
174 		return PTR_ERR(gpu->vdd);  in nouveau_platform_probe()
176 	gpu->rst = devm_reset_control_get(&pdev->dev, "gpu");  in nouveau_platform_probe()
177 	if (IS_ERR(gpu->rst))  in nouveau_platform_probe()
178 		return PTR_ERR(gpu->rst);  in nouveau_platform_probe()
180 	gpu->clk = devm_clk_get(&pdev->dev, "gpu");  in nouveau_platform_probe()
181 	if (IS_ERR(gpu->clk))  in nouveau_platform_probe()
182 		return PTR_ERR(gpu->clk);  in nouveau_platform_probe()
184 	gpu->clk_pwr = devm_clk_get(&pdev->dev, "pwr");  in nouveau_platform_probe()
185 	if (IS_ERR(gpu->clk_pwr))  in nouveau_platform_probe()
186 		return PTR_ERR(gpu->clk_pwr);  in nouveau_platform_probe()
188 	nouveau_platform_probe_iommu(&pdev->dev, gpu);  in nouveau_platform_probe()
190 	err = nouveau_platform_power_up(gpu);  in nouveau_platform_probe()
200 	device->gpu = gpu;  in nouveau_platform_probe()
213 	nouveau_platform_power_down(gpu);  in nouveau_platform_probe()
214 	nouveau_platform_remove_iommu(&pdev->dev, gpu);  in nouveau_platform_probe()
224 	struct nouveau_platform_gpu *gpu = nv_device_to_platform(device)->gpu;  in nouveau_platform_remove()  local
229 	err = nouveau_platform_power_down(gpu);  in nouveau_platform_remove()
231 	nouveau_platform_remove_iommu(&pdev->dev, gpu);  in nouveau_platform_remove()