2 * Copyright 2007-8 Advanced Micro Devices, Inc.
3 * Copyright 2008 Red Hat Inc.
5 * Permission is hereby granted, free of charge, to any person obtaining a
6 * copy of this software and associated documentation files (the "Software"),
7 * to deal in the Software without restriction, including without limitation
8 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
9 * and/or sell copies of the Software, and to permit persons to whom the
10 * Software is furnished to do so, subject to the following conditions:
12 * The above copyright notice and this permission notice shall be included in
13 * all copies or substantial portions of the Software.
15 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
16 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
17 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
18 * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
19 * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
20 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
21 * OTHER DEALINGS IN THE SOFTWARE.
23 * Authors: Dave Airlie
27 #include "radeon_drm.h"
28 #include "radeon_drv.h"
32 #include "drm_crtc_helper.h"
34 int radeon_suspend(struct drm_device *dev, pm_message_t state)
36 struct drm_radeon_private *dev_priv = dev->dev_private;
37 struct drm_framebuffer *fb;
40 if (!dev || !dev_priv) {
44 if (state.event == PM_EVENT_PRETHAW)
47 if (!drm_core_check_feature(dev, DRIVER_MODESET))
50 /* unpin the front buffers */
51 list_for_each_entry(fb, &dev->mode_config.fb_kernel_list, filp_head) {
52 struct radeon_framebuffer *radeon_fb = to_radeon_framebuffer(fb);
60 radeon_gem_object_unpin(radeon_fb->obj);
63 if (!(dev_priv->flags & RADEON_IS_IGP))
64 drm_bo_evict_mm(dev, DRM_BO_MEM_VRAM, 0);
66 dev_priv->pmregs.crtc_ext_cntl = RADEON_READ(RADEON_CRTC_EXT_CNTL);
67 for (i = 0; i < 8; i++)
68 dev_priv->pmregs.bios_scratch[i] = RADEON_READ(RADEON_BIOS_0_SCRATCH + (i * 4));
70 radeon_modeset_cp_suspend(dev);
72 /* Disable *all* interrupts */
73 if ((dev_priv->flags & RADEON_FAMILY_MASK) >= CHIP_RS690)
74 RADEON_WRITE(R500_DxMODE_INT_MASK, 0);
75 RADEON_WRITE(RADEON_GEN_INT_CNTL, 0);
77 if (dev_priv->flags & RADEON_IS_PCIE) {
78 memcpy_fromio(dev_priv->mm.pcie_table_backup, dev_priv->mm.pcie_table.kmap.virtual, RADEON_PCIGART_TABLE_SIZE);
81 pci_save_state(dev->pdev);
83 if (state.event == PM_EVENT_SUSPEND) {
84 /* Shut down the device */
85 pci_disable_device(dev->pdev);
86 pci_set_power_state(dev->pdev, PCI_D3hot);
91 int radeon_resume(struct drm_device *dev)
93 struct drm_radeon_private *dev_priv = dev->dev_private;
94 struct drm_framebuffer *fb;
97 if (!drm_core_check_feature(dev, DRIVER_MODESET))
100 pci_set_power_state(dev->pdev, PCI_D0);
101 pci_restore_state(dev->pdev);
102 if (pci_enable_device(dev->pdev))
105 /* Turn on bus mastering -todo fix properly */
106 radeon_enable_bm(dev_priv);
109 /* on atom cards re init the whole card
110 and set the modes again */
112 if (dev_priv->is_atom_bios) {
113 struct atom_context *ctx = dev_priv->mode_info.atom_context;
116 radeon_combios_asic_init(dev);
119 pci_set_master(dev->pdev);
121 for (i = 0; i < 8; i++)
122 RADEON_WRITE(RADEON_BIOS_0_SCRATCH + (i * 4), dev_priv->pmregs.bios_scratch[i]);
124 /* VGA render mayhaps */
125 if (dev_priv->chip_family >= CHIP_RS600) {
128 RADEON_WRITE(AVIVO_D1VGA_CONTROL, 0);
129 RADEON_WRITE(AVIVO_D2VGA_CONTROL, 0);
130 tmp = RADEON_READ(0x300);
132 RADEON_WRITE(0x300, tmp);
133 RADEON_WRITE(0x308, (1 << 8));
134 RADEON_WRITE(0x310, dev_priv->fb_location);
135 RADEON_WRITE(0x594, 0);
138 RADEON_WRITE(RADEON_CRTC_EXT_CNTL, dev_priv->pmregs.crtc_ext_cntl);
140 radeon_static_clocks_init(dev);
142 radeon_init_memory_map(dev);
144 if (dev_priv->flags & RADEON_IS_PCIE) {
145 memcpy_toio(dev_priv->mm.pcie_table.kmap.virtual, dev_priv->mm.pcie_table_backup, RADEON_PCIGART_TABLE_SIZE);
148 if (dev_priv->mm.ring.kmap.virtual)
149 memset(dev_priv->mm.ring.kmap.virtual, 0, RADEON_DEFAULT_RING_SIZE);
151 if (dev_priv->mm.ring_read.kmap.virtual)
152 memset(dev_priv->mm.ring_read.kmap.virtual, 0, PAGE_SIZE);
154 radeon_modeset_cp_resume(dev);
157 RADEON_WRITE(RADEON_LAST_SWI_REG, dev_priv->counter);
159 if ((dev_priv->flags & RADEON_FAMILY_MASK) >= CHIP_RS690)
160 RADEON_WRITE(R500_DxMODE_INT_MASK, dev_priv->r500_disp_irq_reg);
161 RADEON_WRITE(RADEON_GEN_INT_CNTL, dev_priv->irq_enable_reg);
163 /* reset the context for userspace */
164 if (dev->primary->master) {
165 struct drm_radeon_master_private *master_priv = dev->primary->master->driver_priv;
166 if (master_priv->sarea_priv)
167 master_priv->sarea_priv->ctx_owner = 0;
170 /* pin the front buffers */
171 list_for_each_entry(fb, &dev->mode_config.fb_kernel_list, filp_head) {
173 struct radeon_framebuffer *radeon_fb = to_radeon_framebuffer(fb);
181 radeon_gem_object_pin(radeon_fb->obj,
182 PAGE_SIZE, RADEON_GEM_DOMAIN_VRAM);
184 /* blat the mode back in */
185 drm_helper_resume_force_mode(dev);
190 bool radeon_set_pcie_lanes(struct drm_device *dev, int lanes)
192 drm_radeon_private_t *dev_priv = dev->dev_private;
193 uint32_t link_width_cntl, mask;
195 /* FIXME wait for idle */
200 mask = RADEON_PCIE_LC_LINK_WIDTH_X0;
203 mask = RADEON_PCIE_LC_LINK_WIDTH_X1;
206 mask = RADEON_PCIE_LC_LINK_WIDTH_X2;
209 mask = RADEON_PCIE_LC_LINK_WIDTH_X4;
212 mask = RADEON_PCIE_LC_LINK_WIDTH_X8;
215 mask = RADEON_PCIE_LC_LINK_WIDTH_X12;
219 mask = RADEON_PCIE_LC_LINK_WIDTH_X16;
223 link_width_cntl = RADEON_READ_PCIE(dev_priv, RADEON_PCIE_LC_LINK_WIDTH_CNTL);
225 if ((link_width_cntl & RADEON_PCIE_LC_LINK_WIDTH_RD_MASK) ==
226 (mask << RADEON_PCIE_LC_LINK_WIDTH_RD_SHIFT))
229 link_width_cntl &= ~(RADEON_PCIE_LC_LINK_WIDTH_MASK |
230 RADEON_PCIE_LC_RECONFIG_NOW |
231 RADEON_PCIE_LC_RECONFIG_LATER |
232 RADEON_PCIE_LC_SHORT_RECONFIG_EN);
233 link_width_cntl |= mask;
234 RADEON_WRITE_PCIE(RADEON_PCIE_LC_LINK_WIDTH_CNTL, link_width_cntl);
235 RADEON_WRITE_PCIE(RADEON_PCIE_LC_LINK_WIDTH_CNTL, link_width_cntl | RADEON_PCIE_LC_RECONFIG_NOW);
237 /* wait for lane set to complete */
238 link_width_cntl = RADEON_READ_PCIE(dev_priv, RADEON_PCIE_LC_LINK_WIDTH_CNTL);
239 while (link_width_cntl == 0xffffffff)
240 link_width_cntl = RADEON_READ_PCIE(dev_priv, RADEON_PCIE_LC_LINK_WIDTH_CNTL);
242 if ((link_width_cntl & RADEON_PCIE_LC_LINK_WIDTH_RD_MASK) ==
243 (mask << RADEON_PCIE_LC_LINK_WIDTH_RD_SHIFT))