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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 | /* * Copyright 2012 Red Hat Inc. * * Permission is hereby granted, free of charge, to any person obtaining a * copy of this software and associated documentation files (the * "Software"), to deal in the Software without restriction, including * without limitation the rights to use, copy, modify, merge, publish, * distribute, sub license, and/or sell copies of the Software, and to * permit persons to whom the Software is furnished to do so, subject to * the following conditions: * * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL * THE COPYRIGHT HOLDERS, AUTHORS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE * USE OR OTHER DEALINGS IN THE SOFTWARE. * * The above copyright notice and this permission notice (including the * next paragraph) shall be included in all copies or substantial portions * of the Software. * */ /* * Authors: Dave Airlie <airlied@redhat.com> */ #include <linux/module.h> #include <linux/pci.h> #include <drm/drm_aperture.h> #include <drm/drm_atomic_helper.h> #include <drm/drm_crtc_helper.h> #include <drm/drm_drv.h> #include <drm/drm_gem_vram_helper.h> #include <drm/drm_module.h> #include <drm/drm_probe_helper.h> #include "ast_drv.h" static int ast_modeset = -1; MODULE_PARM_DESC(modeset, "Disable/Enable modesetting"); module_param_named(modeset, ast_modeset, int, 0400); /* * DRM driver */ DEFINE_DRM_GEM_FOPS(ast_fops); static const struct drm_driver ast_driver = { .driver_features = DRIVER_ATOMIC | DRIVER_GEM | DRIVER_MODESET, .fops = &ast_fops, .name = DRIVER_NAME, .desc = DRIVER_DESC, .date = DRIVER_DATE, .major = DRIVER_MAJOR, .minor = DRIVER_MINOR, .patchlevel = DRIVER_PATCHLEVEL, DRM_GEM_VRAM_DRIVER }; /* * PCI driver */ #define PCI_VENDOR_ASPEED 0x1a03 #define AST_VGA_DEVICE(id, info) { \ .class = PCI_BASE_CLASS_DISPLAY << 16, \ .class_mask = 0xff0000, \ .vendor = PCI_VENDOR_ASPEED, \ .device = id, \ .subvendor = PCI_ANY_ID, \ .subdevice = PCI_ANY_ID, \ .driver_data = (unsigned long) info } static const struct pci_device_id ast_pciidlist[] = { AST_VGA_DEVICE(PCI_CHIP_AST2000, NULL), AST_VGA_DEVICE(PCI_CHIP_AST2100, NULL), {0, 0, 0}, }; MODULE_DEVICE_TABLE(pci, ast_pciidlist); static int ast_pci_probe(struct pci_dev *pdev, const struct pci_device_id *ent) { struct ast_private *ast; struct drm_device *dev; int ret; ret = drm_aperture_remove_conflicting_pci_framebuffers(pdev, &ast_driver); if (ret) return ret; ret = pcim_enable_device(pdev); if (ret) return ret; ast = ast_device_create(&ast_driver, pdev, ent->driver_data); if (IS_ERR(ast)) return PTR_ERR(ast); dev = &ast->base; ret = drm_dev_register(dev, ent->driver_data); if (ret) return ret; drm_fbdev_generic_setup(dev, 32); return 0; } static void ast_pci_remove(struct pci_dev *pdev) { struct drm_device *dev = pci_get_drvdata(pdev); drm_dev_unregister(dev); drm_atomic_helper_shutdown(dev); } static int ast_drm_freeze(struct drm_device *dev) { int error; error = drm_mode_config_helper_suspend(dev); if (error) return error; pci_save_state(to_pci_dev(dev->dev)); return 0; } static int ast_drm_thaw(struct drm_device *dev) { ast_post_gpu(dev); return drm_mode_config_helper_resume(dev); } static int ast_drm_resume(struct drm_device *dev) { if (pci_enable_device(to_pci_dev(dev->dev))) return -EIO; return ast_drm_thaw(dev); } static int ast_pm_suspend(struct device *dev) { struct pci_dev *pdev = to_pci_dev(dev); struct drm_device *ddev = pci_get_drvdata(pdev); int error; error = ast_drm_freeze(ddev); if (error) return error; pci_disable_device(pdev); pci_set_power_state(pdev, PCI_D3hot); return 0; } static int ast_pm_resume(struct device *dev) { struct pci_dev *pdev = to_pci_dev(dev); struct drm_device *ddev = pci_get_drvdata(pdev); return ast_drm_resume(ddev); } static int ast_pm_freeze(struct device *dev) { struct pci_dev *pdev = to_pci_dev(dev); struct drm_device *ddev = pci_get_drvdata(pdev); return ast_drm_freeze(ddev); } static int ast_pm_thaw(struct device *dev) { struct pci_dev *pdev = to_pci_dev(dev); struct drm_device *ddev = pci_get_drvdata(pdev); return ast_drm_thaw(ddev); } static int ast_pm_poweroff(struct device *dev) { struct pci_dev *pdev = to_pci_dev(dev); struct drm_device *ddev = pci_get_drvdata(pdev); return ast_drm_freeze(ddev); } static const struct dev_pm_ops ast_pm_ops = { .suspend = ast_pm_suspend, .resume = ast_pm_resume, .freeze = ast_pm_freeze, .thaw = ast_pm_thaw, .poweroff = ast_pm_poweroff, .restore = ast_pm_resume, }; static struct pci_driver ast_pci_driver = { .name = DRIVER_NAME, .id_table = ast_pciidlist, .probe = ast_pci_probe, .remove = ast_pci_remove, .driver.pm = &ast_pm_ops, }; drm_module_pci_driver_if_modeset(ast_pci_driver, ast_modeset); MODULE_AUTHOR(DRIVER_AUTHOR); MODULE_DESCRIPTION(DRIVER_DESC); MODULE_LICENSE("GPL and additional rights"); |