Jerome Glisse | 771fe6b | 2009-06-05 14:42:42 +0200 | [diff] [blame] | 1 | /* |
| 2 | * Copyright 2008 Advanced Micro Devices, Inc. |
| 3 | * Copyright 2008 Red Hat Inc. |
| 4 | * Copyright 2009 Jerome Glisse. |
| 5 | * |
| 6 | * Permission is hereby granted, free of charge, to any person obtaining a |
| 7 | * copy of this software and associated documentation files (the "Software"), |
| 8 | * to deal in the Software without restriction, including without limitation |
| 9 | * the rights to use, copy, modify, merge, publish, distribute, sublicense, |
| 10 | * and/or sell copies of the Software, and to permit persons to whom the |
| 11 | * Software is furnished to do so, subject to the following conditions: |
| 12 | * |
| 13 | * The above copyright notice and this permission notice shall be included in |
| 14 | * all copies or substantial portions of the Software. |
| 15 | * |
| 16 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR |
| 17 | * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
| 18 | * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL |
| 19 | * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR |
| 20 | * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, |
| 21 | * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR |
| 22 | * OTHER DEALINGS IN THE SOFTWARE. |
| 23 | * |
| 24 | * Authors: Dave Airlie |
| 25 | * Alex Deucher |
| 26 | * Jerome Glisse |
| 27 | */ |
David Howells | 760285e | 2012-10-02 18:01:07 +0100 | [diff] [blame] | 28 | #include <drm/drmP.h> |
| 29 | #include <drm/drm_crtc_helper.h> |
| 30 | #include <drm/radeon_drm.h> |
Jerome Glisse | 771fe6b | 2009-06-05 14:42:42 +0200 | [diff] [blame] | 31 | #include "radeon_reg.h" |
Jerome Glisse | 771fe6b | 2009-06-05 14:42:42 +0200 | [diff] [blame] | 32 | #include "radeon.h" |
| 33 | #include "atom.h" |
| 34 | |
Christian Koenig | fb98257 | 2012-05-17 01:33:30 +0200 | [diff] [blame] | 35 | #define RADEON_WAIT_IDLE_TIMEOUT 200 |
| 36 | |
Alex Deucher | b73ba98 | 2012-07-17 14:02:35 -0400 | [diff] [blame] | 37 | /** |
| 38 | * radeon_driver_irq_handler_kms - irq handler for KMS |
| 39 | * |
| 40 | * @DRM_IRQ_ARGS: args |
| 41 | * |
| 42 | * This is the irq handler for the radeon KMS driver (all asics). |
| 43 | * radeon_irq_process is a macro that points to the per-asic |
| 44 | * irq handler callback. |
| 45 | */ |
Jerome Glisse | 771fe6b | 2009-06-05 14:42:42 +0200 | [diff] [blame] | 46 | irqreturn_t radeon_driver_irq_handler_kms(DRM_IRQ_ARGS) |
| 47 | { |
| 48 | struct drm_device *dev = (struct drm_device *) arg; |
| 49 | struct radeon_device *rdev = dev->dev_private; |
| 50 | |
| 51 | return radeon_irq_process(rdev); |
| 52 | } |
| 53 | |
Alex Deucher | d4877cf | 2009-12-04 16:56:37 -0500 | [diff] [blame] | 54 | /* |
| 55 | * Handle hotplug events outside the interrupt handler proper. |
| 56 | */ |
Alex Deucher | b73ba98 | 2012-07-17 14:02:35 -0400 | [diff] [blame] | 57 | /** |
| 58 | * radeon_hotplug_work_func - display hotplug work handler |
| 59 | * |
| 60 | * @work: work struct |
| 61 | * |
| 62 | * This is the hot plug event work handler (all asics). |
| 63 | * The work gets scheduled from the irq handler if there |
| 64 | * was a hot plug interrupt. It walks the connector table |
| 65 | * and calls the hotplug handler for each one, then sends |
| 66 | * a drm hotplug event to alert userspace. |
| 67 | */ |
Alex Deucher | d4877cf | 2009-12-04 16:56:37 -0500 | [diff] [blame] | 68 | static void radeon_hotplug_work_func(struct work_struct *work) |
| 69 | { |
| 70 | struct radeon_device *rdev = container_of(work, struct radeon_device, |
| 71 | hotplug_work); |
| 72 | struct drm_device *dev = rdev->ddev; |
| 73 | struct drm_mode_config *mode_config = &dev->mode_config; |
| 74 | struct drm_connector *connector; |
| 75 | |
| 76 | if (mode_config->num_connector) { |
| 77 | list_for_each_entry(connector, &mode_config->connector_list, head) |
| 78 | radeon_connector_hotplug(connector); |
| 79 | } |
| 80 | /* Just fire off a uevent and let userspace tell us what to do */ |
Dave Airlie | eb1f8e4 | 2010-05-07 06:42:51 +0000 | [diff] [blame] | 81 | drm_helper_hpd_irq_event(dev); |
Alex Deucher | d4877cf | 2009-12-04 16:56:37 -0500 | [diff] [blame] | 82 | } |
| 83 | |
Alex Deucher | b73ba98 | 2012-07-17 14:02:35 -0400 | [diff] [blame] | 84 | /** |
| 85 | * radeon_driver_irq_preinstall_kms - drm irq preinstall callback |
| 86 | * |
| 87 | * @dev: drm dev pointer |
| 88 | * |
| 89 | * Gets the hw ready to enable irqs (all asics). |
| 90 | * This function disables all interrupt sources on the GPU. |
| 91 | */ |
Jerome Glisse | 771fe6b | 2009-06-05 14:42:42 +0200 | [diff] [blame] | 92 | void radeon_driver_irq_preinstall_kms(struct drm_device *dev) |
| 93 | { |
| 94 | struct radeon_device *rdev = dev->dev_private; |
Christian Koenig | fb98257 | 2012-05-17 01:33:30 +0200 | [diff] [blame] | 95 | unsigned long irqflags; |
Jerome Glisse | 771fe6b | 2009-06-05 14:42:42 +0200 | [diff] [blame] | 96 | unsigned i; |
| 97 | |
Christian Koenig | fb98257 | 2012-05-17 01:33:30 +0200 | [diff] [blame] | 98 | spin_lock_irqsave(&rdev->irq.lock, irqflags); |
Jerome Glisse | 771fe6b | 2009-06-05 14:42:42 +0200 | [diff] [blame] | 99 | /* Disable *all* interrupts */ |
Alex Deucher | 1b37078 | 2011-11-17 20:13:28 -0500 | [diff] [blame] | 100 | for (i = 0; i < RADEON_NUM_RINGS; i++) |
Christian Koenig | 736fc37 | 2012-05-17 19:52:00 +0200 | [diff] [blame] | 101 | atomic_set(&rdev->irq.ring_int[i], 0); |
Ilija Hadzic | 54bd5206 | 2011-10-26 15:43:58 -0400 | [diff] [blame] | 102 | for (i = 0; i < RADEON_MAX_HPD_PINS; i++) |
Alex Deucher | 9e7b414 | 2010-03-16 17:08:06 -0400 | [diff] [blame] | 103 | rdev->irq.hpd[i] = false; |
Ilija Hadzic | 54bd5206 | 2011-10-26 15:43:58 -0400 | [diff] [blame] | 104 | for (i = 0; i < RADEON_MAX_CRTCS; i++) { |
| 105 | rdev->irq.crtc_vblank_int[i] = false; |
Christian Koenig | 736fc37 | 2012-05-17 19:52:00 +0200 | [diff] [blame] | 106 | atomic_set(&rdev->irq.pflip[i], 0); |
Alex Deucher | f122c61 | 2012-03-30 08:59:57 -0400 | [diff] [blame] | 107 | rdev->irq.afmt[i] = false; |
Alex Deucher | 6f34be5 | 2010-11-21 10:59:01 -0500 | [diff] [blame] | 108 | } |
Jerome Glisse | 771fe6b | 2009-06-05 14:42:42 +0200 | [diff] [blame] | 109 | radeon_irq_set(rdev); |
Christian Koenig | fb98257 | 2012-05-17 01:33:30 +0200 | [diff] [blame] | 110 | spin_unlock_irqrestore(&rdev->irq.lock, irqflags); |
Jerome Glisse | 771fe6b | 2009-06-05 14:42:42 +0200 | [diff] [blame] | 111 | /* Clear bits */ |
| 112 | radeon_irq_process(rdev); |
| 113 | } |
| 114 | |
Alex Deucher | b73ba98 | 2012-07-17 14:02:35 -0400 | [diff] [blame] | 115 | /** |
| 116 | * radeon_driver_irq_postinstall_kms - drm irq preinstall callback |
| 117 | * |
| 118 | * @dev: drm dev pointer |
| 119 | * |
| 120 | * Handles stuff to be done after enabling irqs (all asics). |
| 121 | * Returns 0 on success. |
| 122 | */ |
Jerome Glisse | 771fe6b | 2009-06-05 14:42:42 +0200 | [diff] [blame] | 123 | int radeon_driver_irq_postinstall_kms(struct drm_device *dev) |
| 124 | { |
Jerome Glisse | 771fe6b | 2009-06-05 14:42:42 +0200 | [diff] [blame] | 125 | dev->max_vblank_count = 0x001fffff; |
Jerome Glisse | 771fe6b | 2009-06-05 14:42:42 +0200 | [diff] [blame] | 126 | return 0; |
| 127 | } |
| 128 | |
Alex Deucher | b73ba98 | 2012-07-17 14:02:35 -0400 | [diff] [blame] | 129 | /** |
| 130 | * radeon_driver_irq_uninstall_kms - drm irq uninstall callback |
| 131 | * |
| 132 | * @dev: drm dev pointer |
| 133 | * |
| 134 | * This function disables all interrupt sources on the GPU (all asics). |
| 135 | */ |
Jerome Glisse | 771fe6b | 2009-06-05 14:42:42 +0200 | [diff] [blame] | 136 | void radeon_driver_irq_uninstall_kms(struct drm_device *dev) |
| 137 | { |
| 138 | struct radeon_device *rdev = dev->dev_private; |
Christian Koenig | fb98257 | 2012-05-17 01:33:30 +0200 | [diff] [blame] | 139 | unsigned long irqflags; |
Jerome Glisse | 771fe6b | 2009-06-05 14:42:42 +0200 | [diff] [blame] | 140 | unsigned i; |
| 141 | |
| 142 | if (rdev == NULL) { |
| 143 | return; |
| 144 | } |
Christian Koenig | fb98257 | 2012-05-17 01:33:30 +0200 | [diff] [blame] | 145 | spin_lock_irqsave(&rdev->irq.lock, irqflags); |
Jerome Glisse | 771fe6b | 2009-06-05 14:42:42 +0200 | [diff] [blame] | 146 | /* Disable *all* interrupts */ |
Alex Deucher | 1b37078 | 2011-11-17 20:13:28 -0500 | [diff] [blame] | 147 | for (i = 0; i < RADEON_NUM_RINGS; i++) |
Christian Koenig | 736fc37 | 2012-05-17 19:52:00 +0200 | [diff] [blame] | 148 | atomic_set(&rdev->irq.ring_int[i], 0); |
Ilija Hadzic | 54bd5206 | 2011-10-26 15:43:58 -0400 | [diff] [blame] | 149 | for (i = 0; i < RADEON_MAX_HPD_PINS; i++) |
Jerome Glisse | 003e69f | 2010-01-07 15:39:14 +0100 | [diff] [blame] | 150 | rdev->irq.hpd[i] = false; |
Ilija Hadzic | 54bd5206 | 2011-10-26 15:43:58 -0400 | [diff] [blame] | 151 | for (i = 0; i < RADEON_MAX_CRTCS; i++) { |
| 152 | rdev->irq.crtc_vblank_int[i] = false; |
Christian Koenig | 736fc37 | 2012-05-17 19:52:00 +0200 | [diff] [blame] | 153 | atomic_set(&rdev->irq.pflip[i], 0); |
Alex Deucher | f122c61 | 2012-03-30 08:59:57 -0400 | [diff] [blame] | 154 | rdev->irq.afmt[i] = false; |
Alex Deucher | 6f34be5 | 2010-11-21 10:59:01 -0500 | [diff] [blame] | 155 | } |
Jerome Glisse | 771fe6b | 2009-06-05 14:42:42 +0200 | [diff] [blame] | 156 | radeon_irq_set(rdev); |
Christian Koenig | fb98257 | 2012-05-17 01:33:30 +0200 | [diff] [blame] | 157 | spin_unlock_irqrestore(&rdev->irq.lock, irqflags); |
Jerome Glisse | 771fe6b | 2009-06-05 14:42:42 +0200 | [diff] [blame] | 158 | } |
| 159 | |
Alex Deucher | b73ba98 | 2012-07-17 14:02:35 -0400 | [diff] [blame] | 160 | /** |
| 161 | * radeon_msi_ok - asic specific msi checks |
| 162 | * |
| 163 | * @rdev: radeon device pointer |
| 164 | * |
| 165 | * Handles asic specific MSI checks to determine if |
| 166 | * MSIs should be enabled on a particular chip (all asics). |
| 167 | * Returns true if MSIs should be enabled, false if MSIs |
| 168 | * should not be enabled. |
| 169 | */ |
Alex Deucher | 8f6c25c | 2011-10-25 14:58:49 -0400 | [diff] [blame] | 170 | static bool radeon_msi_ok(struct radeon_device *rdev) |
| 171 | { |
| 172 | /* RV370/RV380 was first asic with MSI support */ |
| 173 | if (rdev->family < CHIP_RV380) |
| 174 | return false; |
| 175 | |
| 176 | /* MSIs don't work on AGP */ |
| 177 | if (rdev->flags & RADEON_IS_AGP) |
| 178 | return false; |
| 179 | |
Alex Deucher | a18cee1 | 2011-11-01 14:20:30 -0400 | [diff] [blame] | 180 | /* force MSI on */ |
| 181 | if (radeon_msi == 1) |
| 182 | return true; |
| 183 | else if (radeon_msi == 0) |
| 184 | return false; |
| 185 | |
Alex Deucher | b362105 | 2011-10-25 15:11:08 -0400 | [diff] [blame] | 186 | /* Quirks */ |
| 187 | /* HP RS690 only seems to work with MSIs. */ |
| 188 | if ((rdev->pdev->device == 0x791f) && |
| 189 | (rdev->pdev->subsystem_vendor == 0x103c) && |
| 190 | (rdev->pdev->subsystem_device == 0x30c2)) |
| 191 | return true; |
| 192 | |
Alex Deucher | 01e718e | 2011-11-01 14:14:18 -0400 | [diff] [blame] | 193 | /* Dell RS690 only seems to work with MSIs. */ |
| 194 | if ((rdev->pdev->device == 0x791f) && |
| 195 | (rdev->pdev->subsystem_vendor == 0x1028) && |
Alex Deucher | 44517c4 | 2012-01-15 08:51:12 -0500 | [diff] [blame] | 196 | (rdev->pdev->subsystem_device == 0x01fc)) |
| 197 | return true; |
| 198 | |
| 199 | /* Dell RS690 only seems to work with MSIs. */ |
| 200 | if ((rdev->pdev->device == 0x791f) && |
| 201 | (rdev->pdev->subsystem_vendor == 0x1028) && |
Alex Deucher | 01e718e | 2011-11-01 14:14:18 -0400 | [diff] [blame] | 202 | (rdev->pdev->subsystem_device == 0x01fd)) |
| 203 | return true; |
| 204 | |
Alex Deucher | 3a6d59d | 2012-09-26 12:31:45 -0400 | [diff] [blame] | 205 | /* Gateway RS690 only seems to work with MSIs. */ |
| 206 | if ((rdev->pdev->device == 0x791f) && |
| 207 | (rdev->pdev->subsystem_vendor == 0x107b) && |
| 208 | (rdev->pdev->subsystem_device == 0x0185)) |
| 209 | return true; |
| 210 | |
Alex Deucher | fb6ca6d | 2012-09-26 12:40:45 -0400 | [diff] [blame] | 211 | /* try and enable MSIs by default on all RS690s */ |
| 212 | if (rdev->family == CHIP_RS690) |
| 213 | return true; |
| 214 | |
Dave Airlie | 16a5e32 | 2012-04-13 11:14:50 +0100 | [diff] [blame] | 215 | /* RV515 seems to have MSI issues where it loses |
| 216 | * MSI rearms occasionally. This leads to lockups and freezes. |
| 217 | * disable it by default. |
| 218 | */ |
| 219 | if (rdev->family == CHIP_RV515) |
| 220 | return false; |
Alex Deucher | 8f6c25c | 2011-10-25 14:58:49 -0400 | [diff] [blame] | 221 | if (rdev->flags & RADEON_IS_IGP) { |
| 222 | /* APUs work fine with MSIs */ |
| 223 | if (rdev->family >= CHIP_PALM) |
| 224 | return true; |
| 225 | /* lots of IGPs have problems with MSIs */ |
| 226 | return false; |
| 227 | } |
| 228 | |
| 229 | return true; |
| 230 | } |
| 231 | |
Alex Deucher | b73ba98 | 2012-07-17 14:02:35 -0400 | [diff] [blame] | 232 | /** |
| 233 | * radeon_irq_kms_init - init driver interrupt info |
| 234 | * |
| 235 | * @rdev: radeon device pointer |
| 236 | * |
| 237 | * Sets up the work irq handlers, vblank init, MSIs, etc. (all asics). |
| 238 | * Returns 0 for success, error for failure. |
| 239 | */ |
Jerome Glisse | 771fe6b | 2009-06-05 14:42:42 +0200 | [diff] [blame] | 240 | int radeon_irq_kms_init(struct radeon_device *rdev) |
| 241 | { |
| 242 | int r = 0; |
| 243 | |
Tejun Heo | 32c87fc | 2011-01-03 14:49:32 +0100 | [diff] [blame] | 244 | INIT_WORK(&rdev->hotplug_work, radeon_hotplug_work_func); |
Alex Deucher | f122c61 | 2012-03-30 08:59:57 -0400 | [diff] [blame] | 245 | INIT_WORK(&rdev->audio_work, r600_audio_update_hdmi); |
Tejun Heo | 32c87fc | 2011-01-03 14:49:32 +0100 | [diff] [blame] | 246 | |
Christian Koenig | fb98257 | 2012-05-17 01:33:30 +0200 | [diff] [blame] | 247 | spin_lock_init(&rdev->irq.lock); |
Alex Deucher | 9e7b414 | 2010-03-16 17:08:06 -0400 | [diff] [blame] | 248 | r = drm_vblank_init(rdev->ddev, rdev->num_crtc); |
Jerome Glisse | 771fe6b | 2009-06-05 14:42:42 +0200 | [diff] [blame] | 249 | if (r) { |
| 250 | return r; |
| 251 | } |
Alex Deucher | 3e5cb98 | 2009-10-16 12:21:24 -0400 | [diff] [blame] | 252 | /* enable msi */ |
| 253 | rdev->msi_enabled = 0; |
Alex Deucher | 8f6c25c | 2011-10-25 14:58:49 -0400 | [diff] [blame] | 254 | |
| 255 | if (radeon_msi_ok(rdev)) { |
Alex Deucher | 3e5cb98 | 2009-10-16 12:21:24 -0400 | [diff] [blame] | 256 | int ret = pci_enable_msi(rdev->pdev); |
Alex Deucher | d8f60cf | 2009-12-01 13:43:46 -0500 | [diff] [blame] | 257 | if (!ret) { |
Alex Deucher | 3e5cb98 | 2009-10-16 12:21:24 -0400 | [diff] [blame] | 258 | rdev->msi_enabled = 1; |
Alex Deucher | da7be68 | 2010-08-12 18:05:34 -0400 | [diff] [blame] | 259 | dev_info(rdev->dev, "radeon: using MSI.\n"); |
Alex Deucher | d8f60cf | 2009-12-01 13:43:46 -0500 | [diff] [blame] | 260 | } |
Alex Deucher | 3e5cb98 | 2009-10-16 12:21:24 -0400 | [diff] [blame] | 261 | } |
Jerome Glisse | 771fe6b | 2009-06-05 14:42:42 +0200 | [diff] [blame] | 262 | rdev->irq.installed = true; |
Jerome Glisse | 003e69f | 2010-01-07 15:39:14 +0100 | [diff] [blame] | 263 | r = drm_irq_install(rdev->ddev); |
| 264 | if (r) { |
| 265 | rdev->irq.installed = false; |
| 266 | return r; |
| 267 | } |
Jerome Glisse | 771fe6b | 2009-06-05 14:42:42 +0200 | [diff] [blame] | 268 | DRM_INFO("radeon: irq initialized.\n"); |
| 269 | return 0; |
| 270 | } |
| 271 | |
Alex Deucher | b73ba98 | 2012-07-17 14:02:35 -0400 | [diff] [blame] | 272 | /** |
| 273 | * radeon_irq_kms_fini - tear down driver interrrupt info |
| 274 | * |
| 275 | * @rdev: radeon device pointer |
| 276 | * |
| 277 | * Tears down the work irq handlers, vblank handlers, MSIs, etc. (all asics). |
| 278 | */ |
Jerome Glisse | 771fe6b | 2009-06-05 14:42:42 +0200 | [diff] [blame] | 279 | void radeon_irq_kms_fini(struct radeon_device *rdev) |
| 280 | { |
Jerome Glisse | 003e69f | 2010-01-07 15:39:14 +0100 | [diff] [blame] | 281 | drm_vblank_cleanup(rdev->ddev); |
Jerome Glisse | 771fe6b | 2009-06-05 14:42:42 +0200 | [diff] [blame] | 282 | if (rdev->irq.installed) { |
Jerome Glisse | 771fe6b | 2009-06-05 14:42:42 +0200 | [diff] [blame] | 283 | drm_irq_uninstall(rdev->ddev); |
Jerome Glisse | 003e69f | 2010-01-07 15:39:14 +0100 | [diff] [blame] | 284 | rdev->irq.installed = false; |
Alex Deucher | 3e5cb98 | 2009-10-16 12:21:24 -0400 | [diff] [blame] | 285 | if (rdev->msi_enabled) |
| 286 | pci_disable_msi(rdev->pdev); |
Jerome Glisse | 771fe6b | 2009-06-05 14:42:42 +0200 | [diff] [blame] | 287 | } |
Tejun Heo | 4382973 | 2012-08-20 14:51:24 -0700 | [diff] [blame] | 288 | flush_work(&rdev->hotplug_work); |
Jerome Glisse | 771fe6b | 2009-06-05 14:42:42 +0200 | [diff] [blame] | 289 | } |
Dave Airlie | 1614f8b | 2009-12-01 16:04:56 +1000 | [diff] [blame] | 290 | |
Alex Deucher | b73ba98 | 2012-07-17 14:02:35 -0400 | [diff] [blame] | 291 | /** |
| 292 | * radeon_irq_kms_sw_irq_get - enable software interrupt |
| 293 | * |
| 294 | * @rdev: radeon device pointer |
| 295 | * @ring: ring whose interrupt you want to enable |
| 296 | * |
| 297 | * Enables the software interrupt for a specific ring (all asics). |
| 298 | * The software interrupt is generally used to signal a fence on |
| 299 | * a particular ring. |
| 300 | */ |
Alex Deucher | 1b37078 | 2011-11-17 20:13:28 -0500 | [diff] [blame] | 301 | void radeon_irq_kms_sw_irq_get(struct radeon_device *rdev, int ring) |
Dave Airlie | 1614f8b | 2009-12-01 16:04:56 +1000 | [diff] [blame] | 302 | { |
| 303 | unsigned long irqflags; |
| 304 | |
Christian Koenig | 736fc37 | 2012-05-17 19:52:00 +0200 | [diff] [blame] | 305 | if (!rdev->ddev->irq_enabled) |
| 306 | return; |
| 307 | |
| 308 | if (atomic_inc_return(&rdev->irq.ring_int[ring]) == 1) { |
| 309 | spin_lock_irqsave(&rdev->irq.lock, irqflags); |
Dave Airlie | 1614f8b | 2009-12-01 16:04:56 +1000 | [diff] [blame] | 310 | radeon_irq_set(rdev); |
Christian Koenig | 736fc37 | 2012-05-17 19:52:00 +0200 | [diff] [blame] | 311 | spin_unlock_irqrestore(&rdev->irq.lock, irqflags); |
Dave Airlie | 1614f8b | 2009-12-01 16:04:56 +1000 | [diff] [blame] | 312 | } |
Dave Airlie | 1614f8b | 2009-12-01 16:04:56 +1000 | [diff] [blame] | 313 | } |
| 314 | |
Alex Deucher | b73ba98 | 2012-07-17 14:02:35 -0400 | [diff] [blame] | 315 | /** |
| 316 | * radeon_irq_kms_sw_irq_put - disable software interrupt |
| 317 | * |
| 318 | * @rdev: radeon device pointer |
| 319 | * @ring: ring whose interrupt you want to disable |
| 320 | * |
| 321 | * Disables the software interrupt for a specific ring (all asics). |
| 322 | * The software interrupt is generally used to signal a fence on |
| 323 | * a particular ring. |
| 324 | */ |
Alex Deucher | 1b37078 | 2011-11-17 20:13:28 -0500 | [diff] [blame] | 325 | void radeon_irq_kms_sw_irq_put(struct radeon_device *rdev, int ring) |
Dave Airlie | 1614f8b | 2009-12-01 16:04:56 +1000 | [diff] [blame] | 326 | { |
| 327 | unsigned long irqflags; |
| 328 | |
Christian Koenig | 736fc37 | 2012-05-17 19:52:00 +0200 | [diff] [blame] | 329 | if (!rdev->ddev->irq_enabled) |
| 330 | return; |
| 331 | |
| 332 | if (atomic_dec_and_test(&rdev->irq.ring_int[ring])) { |
| 333 | spin_lock_irqsave(&rdev->irq.lock, irqflags); |
Dave Airlie | 1614f8b | 2009-12-01 16:04:56 +1000 | [diff] [blame] | 334 | radeon_irq_set(rdev); |
Christian Koenig | 736fc37 | 2012-05-17 19:52:00 +0200 | [diff] [blame] | 335 | spin_unlock_irqrestore(&rdev->irq.lock, irqflags); |
Dave Airlie | 1614f8b | 2009-12-01 16:04:56 +1000 | [diff] [blame] | 336 | } |
Dave Airlie | 1614f8b | 2009-12-01 16:04:56 +1000 | [diff] [blame] | 337 | } |
| 338 | |
Alex Deucher | b73ba98 | 2012-07-17 14:02:35 -0400 | [diff] [blame] | 339 | /** |
| 340 | * radeon_irq_kms_pflip_irq_get - enable pageflip interrupt |
| 341 | * |
| 342 | * @rdev: radeon device pointer |
| 343 | * @crtc: crtc whose interrupt you want to enable |
| 344 | * |
| 345 | * Enables the pageflip interrupt for a specific crtc (all asics). |
| 346 | * For pageflips we use the vblank interrupt source. |
| 347 | */ |
Alex Deucher | 6f34be5 | 2010-11-21 10:59:01 -0500 | [diff] [blame] | 348 | void radeon_irq_kms_pflip_irq_get(struct radeon_device *rdev, int crtc) |
| 349 | { |
| 350 | unsigned long irqflags; |
| 351 | |
| 352 | if (crtc < 0 || crtc >= rdev->num_crtc) |
| 353 | return; |
| 354 | |
Christian Koenig | 736fc37 | 2012-05-17 19:52:00 +0200 | [diff] [blame] | 355 | if (!rdev->ddev->irq_enabled) |
| 356 | return; |
| 357 | |
| 358 | if (atomic_inc_return(&rdev->irq.pflip[crtc]) == 1) { |
| 359 | spin_lock_irqsave(&rdev->irq.lock, irqflags); |
Alex Deucher | 6f34be5 | 2010-11-21 10:59:01 -0500 | [diff] [blame] | 360 | radeon_irq_set(rdev); |
Christian Koenig | 736fc37 | 2012-05-17 19:52:00 +0200 | [diff] [blame] | 361 | spin_unlock_irqrestore(&rdev->irq.lock, irqflags); |
Alex Deucher | 6f34be5 | 2010-11-21 10:59:01 -0500 | [diff] [blame] | 362 | } |
Alex Deucher | 6f34be5 | 2010-11-21 10:59:01 -0500 | [diff] [blame] | 363 | } |
| 364 | |
Alex Deucher | b73ba98 | 2012-07-17 14:02:35 -0400 | [diff] [blame] | 365 | /** |
| 366 | * radeon_irq_kms_pflip_irq_put - disable pageflip interrupt |
| 367 | * |
| 368 | * @rdev: radeon device pointer |
| 369 | * @crtc: crtc whose interrupt you want to disable |
| 370 | * |
| 371 | * Disables the pageflip interrupt for a specific crtc (all asics). |
| 372 | * For pageflips we use the vblank interrupt source. |
| 373 | */ |
Alex Deucher | 6f34be5 | 2010-11-21 10:59:01 -0500 | [diff] [blame] | 374 | void radeon_irq_kms_pflip_irq_put(struct radeon_device *rdev, int crtc) |
| 375 | { |
| 376 | unsigned long irqflags; |
| 377 | |
| 378 | if (crtc < 0 || crtc >= rdev->num_crtc) |
| 379 | return; |
| 380 | |
Christian Koenig | 736fc37 | 2012-05-17 19:52:00 +0200 | [diff] [blame] | 381 | if (!rdev->ddev->irq_enabled) |
| 382 | return; |
| 383 | |
| 384 | if (atomic_dec_and_test(&rdev->irq.pflip[crtc])) { |
| 385 | spin_lock_irqsave(&rdev->irq.lock, irqflags); |
Alex Deucher | 6f34be5 | 2010-11-21 10:59:01 -0500 | [diff] [blame] | 386 | radeon_irq_set(rdev); |
Christian Koenig | 736fc37 | 2012-05-17 19:52:00 +0200 | [diff] [blame] | 387 | spin_unlock_irqrestore(&rdev->irq.lock, irqflags); |
Alex Deucher | 6f34be5 | 2010-11-21 10:59:01 -0500 | [diff] [blame] | 388 | } |
Alex Deucher | 6f34be5 | 2010-11-21 10:59:01 -0500 | [diff] [blame] | 389 | } |
| 390 | |
Alex Deucher | b73ba98 | 2012-07-17 14:02:35 -0400 | [diff] [blame] | 391 | /** |
| 392 | * radeon_irq_kms_enable_afmt - enable audio format change interrupt |
| 393 | * |
| 394 | * @rdev: radeon device pointer |
| 395 | * @block: afmt block whose interrupt you want to enable |
| 396 | * |
| 397 | * Enables the afmt change interrupt for a specific afmt block (all asics). |
| 398 | */ |
Christian Koenig | fb98257 | 2012-05-17 01:33:30 +0200 | [diff] [blame] | 399 | void radeon_irq_kms_enable_afmt(struct radeon_device *rdev, int block) |
| 400 | { |
| 401 | unsigned long irqflags; |
| 402 | |
Alex Deucher | cc9945b | 2013-02-26 16:17:33 -0500 | [diff] [blame] | 403 | if (!rdev->ddev->irq_enabled) |
| 404 | return; |
| 405 | |
Christian Koenig | fb98257 | 2012-05-17 01:33:30 +0200 | [diff] [blame] | 406 | spin_lock_irqsave(&rdev->irq.lock, irqflags); |
| 407 | rdev->irq.afmt[block] = true; |
| 408 | radeon_irq_set(rdev); |
| 409 | spin_unlock_irqrestore(&rdev->irq.lock, irqflags); |
| 410 | |
| 411 | } |
| 412 | |
Alex Deucher | b73ba98 | 2012-07-17 14:02:35 -0400 | [diff] [blame] | 413 | /** |
| 414 | * radeon_irq_kms_disable_afmt - disable audio format change interrupt |
| 415 | * |
| 416 | * @rdev: radeon device pointer |
| 417 | * @block: afmt block whose interrupt you want to disable |
| 418 | * |
| 419 | * Disables the afmt change interrupt for a specific afmt block (all asics). |
| 420 | */ |
Christian Koenig | fb98257 | 2012-05-17 01:33:30 +0200 | [diff] [blame] | 421 | void radeon_irq_kms_disable_afmt(struct radeon_device *rdev, int block) |
| 422 | { |
| 423 | unsigned long irqflags; |
| 424 | |
Alex Deucher | cc9945b | 2013-02-26 16:17:33 -0500 | [diff] [blame] | 425 | if (!rdev->ddev->irq_enabled) |
| 426 | return; |
| 427 | |
Christian Koenig | fb98257 | 2012-05-17 01:33:30 +0200 | [diff] [blame] | 428 | spin_lock_irqsave(&rdev->irq.lock, irqflags); |
| 429 | rdev->irq.afmt[block] = false; |
| 430 | radeon_irq_set(rdev); |
| 431 | spin_unlock_irqrestore(&rdev->irq.lock, irqflags); |
| 432 | } |
| 433 | |
Alex Deucher | b73ba98 | 2012-07-17 14:02:35 -0400 | [diff] [blame] | 434 | /** |
| 435 | * radeon_irq_kms_enable_hpd - enable hotplug detect interrupt |
| 436 | * |
| 437 | * @rdev: radeon device pointer |
| 438 | * @hpd_mask: mask of hpd pins you want to enable. |
| 439 | * |
| 440 | * Enables the hotplug detect interrupt for a specific hpd pin (all asics). |
| 441 | */ |
Christian Koenig | fb98257 | 2012-05-17 01:33:30 +0200 | [diff] [blame] | 442 | void radeon_irq_kms_enable_hpd(struct radeon_device *rdev, unsigned hpd_mask) |
| 443 | { |
| 444 | unsigned long irqflags; |
| 445 | int i; |
| 446 | |
Alex Deucher | cc9945b | 2013-02-26 16:17:33 -0500 | [diff] [blame] | 447 | if (!rdev->ddev->irq_enabled) |
| 448 | return; |
| 449 | |
Christian Koenig | fb98257 | 2012-05-17 01:33:30 +0200 | [diff] [blame] | 450 | spin_lock_irqsave(&rdev->irq.lock, irqflags); |
| 451 | for (i = 0; i < RADEON_MAX_HPD_PINS; ++i) |
| 452 | rdev->irq.hpd[i] |= !!(hpd_mask & (1 << i)); |
| 453 | radeon_irq_set(rdev); |
| 454 | spin_unlock_irqrestore(&rdev->irq.lock, irqflags); |
| 455 | } |
| 456 | |
Alex Deucher | b73ba98 | 2012-07-17 14:02:35 -0400 | [diff] [blame] | 457 | /** |
| 458 | * radeon_irq_kms_disable_hpd - disable hotplug detect interrupt |
| 459 | * |
| 460 | * @rdev: radeon device pointer |
| 461 | * @hpd_mask: mask of hpd pins you want to disable. |
| 462 | * |
| 463 | * Disables the hotplug detect interrupt for a specific hpd pin (all asics). |
| 464 | */ |
Christian Koenig | fb98257 | 2012-05-17 01:33:30 +0200 | [diff] [blame] | 465 | void radeon_irq_kms_disable_hpd(struct radeon_device *rdev, unsigned hpd_mask) |
| 466 | { |
| 467 | unsigned long irqflags; |
| 468 | int i; |
| 469 | |
Alex Deucher | cc9945b | 2013-02-26 16:17:33 -0500 | [diff] [blame] | 470 | if (!rdev->ddev->irq_enabled) |
| 471 | return; |
| 472 | |
Christian Koenig | fb98257 | 2012-05-17 01:33:30 +0200 | [diff] [blame] | 473 | spin_lock_irqsave(&rdev->irq.lock, irqflags); |
| 474 | for (i = 0; i < RADEON_MAX_HPD_PINS; ++i) |
| 475 | rdev->irq.hpd[i] &= !(hpd_mask & (1 << i)); |
| 476 | radeon_irq_set(rdev); |
| 477 | spin_unlock_irqrestore(&rdev->irq.lock, irqflags); |
| 478 | } |
| 479 | |