Loading...
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 */
28#include "drmP.h"
29#include "drm_crtc_helper.h"
30#include "radeon_drm.h"
31#include "radeon_reg.h"
32#include "radeon.h"
33#include "atom.h"
34
35irqreturn_t radeon_driver_irq_handler_kms(DRM_IRQ_ARGS)
36{
37 struct drm_device *dev = (struct drm_device *) arg;
38 struct radeon_device *rdev = dev->dev_private;
39
40 return radeon_irq_process(rdev);
41}
42
43/*
44 * Handle hotplug events outside the interrupt handler proper.
45 */
46static void radeon_hotplug_work_func(struct work_struct *work)
47{
48 struct radeon_device *rdev = container_of(work, struct radeon_device,
49 hotplug_work);
50 struct drm_device *dev = rdev->ddev;
51 struct drm_mode_config *mode_config = &dev->mode_config;
52 struct drm_connector *connector;
53
54 if (mode_config->num_connector) {
55 list_for_each_entry(connector, &mode_config->connector_list, head)
56 radeon_connector_hotplug(connector);
57 }
58 /* Just fire off a uevent and let userspace tell us what to do */
59 drm_helper_hpd_irq_event(dev);
60}
61
62void radeon_driver_irq_preinstall_kms(struct drm_device *dev)
63{
64 struct radeon_device *rdev = dev->dev_private;
65 unsigned i;
66
67 /* Disable *all* interrupts */
68 rdev->irq.sw_int = false;
69 rdev->irq.gui_idle = false;
70 for (i = 0; i < rdev->num_crtc; i++)
71 rdev->irq.crtc_vblank_int[i] = false;
72 for (i = 0; i < 6; i++) {
73 rdev->irq.hpd[i] = false;
74 rdev->irq.pflip[i] = false;
75 }
76 radeon_irq_set(rdev);
77 /* Clear bits */
78 radeon_irq_process(rdev);
79}
80
81int radeon_driver_irq_postinstall_kms(struct drm_device *dev)
82{
83 struct radeon_device *rdev = dev->dev_private;
84
85 dev->max_vblank_count = 0x001fffff;
86 rdev->irq.sw_int = true;
87 radeon_irq_set(rdev);
88 return 0;
89}
90
91void radeon_driver_irq_uninstall_kms(struct drm_device *dev)
92{
93 struct radeon_device *rdev = dev->dev_private;
94 unsigned i;
95
96 if (rdev == NULL) {
97 return;
98 }
99 /* Disable *all* interrupts */
100 rdev->irq.sw_int = false;
101 rdev->irq.gui_idle = false;
102 for (i = 0; i < rdev->num_crtc; i++)
103 rdev->irq.crtc_vblank_int[i] = false;
104 for (i = 0; i < 6; i++) {
105 rdev->irq.hpd[i] = false;
106 rdev->irq.pflip[i] = false;
107 }
108 radeon_irq_set(rdev);
109}
110
111int radeon_irq_kms_init(struct radeon_device *rdev)
112{
113 int i;
114 int r = 0;
115
116 INIT_WORK(&rdev->hotplug_work, radeon_hotplug_work_func);
117
118 spin_lock_init(&rdev->irq.sw_lock);
119 for (i = 0; i < rdev->num_crtc; i++)
120 spin_lock_init(&rdev->irq.pflip_lock[i]);
121 r = drm_vblank_init(rdev->ddev, rdev->num_crtc);
122 if (r) {
123 return r;
124 }
125 /* enable msi */
126 rdev->msi_enabled = 0;
127 /* MSIs don't seem to work reliably on all IGP
128 * chips. Disable MSI on them for now.
129 */
130 if ((rdev->family >= CHIP_RV380) &&
131 ((!(rdev->flags & RADEON_IS_IGP)) || (rdev->family >= CHIP_PALM)) &&
132 (!(rdev->flags & RADEON_IS_AGP))) {
133 int ret = pci_enable_msi(rdev->pdev);
134 if (!ret) {
135 rdev->msi_enabled = 1;
136 dev_info(rdev->dev, "radeon: using MSI.\n");
137 }
138 }
139 rdev->irq.installed = true;
140 r = drm_irq_install(rdev->ddev);
141 if (r) {
142 rdev->irq.installed = false;
143 return r;
144 }
145 DRM_INFO("radeon: irq initialized.\n");
146 return 0;
147}
148
149void radeon_irq_kms_fini(struct radeon_device *rdev)
150{
151 drm_vblank_cleanup(rdev->ddev);
152 if (rdev->irq.installed) {
153 drm_irq_uninstall(rdev->ddev);
154 rdev->irq.installed = false;
155 if (rdev->msi_enabled)
156 pci_disable_msi(rdev->pdev);
157 }
158 flush_work_sync(&rdev->hotplug_work);
159}
160
161void radeon_irq_kms_sw_irq_get(struct radeon_device *rdev)
162{
163 unsigned long irqflags;
164
165 spin_lock_irqsave(&rdev->irq.sw_lock, irqflags);
166 if (rdev->ddev->irq_enabled && (++rdev->irq.sw_refcount == 1)) {
167 rdev->irq.sw_int = true;
168 radeon_irq_set(rdev);
169 }
170 spin_unlock_irqrestore(&rdev->irq.sw_lock, irqflags);
171}
172
173void radeon_irq_kms_sw_irq_put(struct radeon_device *rdev)
174{
175 unsigned long irqflags;
176
177 spin_lock_irqsave(&rdev->irq.sw_lock, irqflags);
178 BUG_ON(rdev->ddev->irq_enabled && rdev->irq.sw_refcount <= 0);
179 if (rdev->ddev->irq_enabled && (--rdev->irq.sw_refcount == 0)) {
180 rdev->irq.sw_int = false;
181 radeon_irq_set(rdev);
182 }
183 spin_unlock_irqrestore(&rdev->irq.sw_lock, irqflags);
184}
185
186void radeon_irq_kms_pflip_irq_get(struct radeon_device *rdev, int crtc)
187{
188 unsigned long irqflags;
189
190 if (crtc < 0 || crtc >= rdev->num_crtc)
191 return;
192
193 spin_lock_irqsave(&rdev->irq.pflip_lock[crtc], irqflags);
194 if (rdev->ddev->irq_enabled && (++rdev->irq.pflip_refcount[crtc] == 1)) {
195 rdev->irq.pflip[crtc] = true;
196 radeon_irq_set(rdev);
197 }
198 spin_unlock_irqrestore(&rdev->irq.pflip_lock[crtc], irqflags);
199}
200
201void radeon_irq_kms_pflip_irq_put(struct radeon_device *rdev, int crtc)
202{
203 unsigned long irqflags;
204
205 if (crtc < 0 || crtc >= rdev->num_crtc)
206 return;
207
208 spin_lock_irqsave(&rdev->irq.pflip_lock[crtc], irqflags);
209 BUG_ON(rdev->ddev->irq_enabled && rdev->irq.pflip_refcount[crtc] <= 0);
210 if (rdev->ddev->irq_enabled && (--rdev->irq.pflip_refcount[crtc] == 0)) {
211 rdev->irq.pflip[crtc] = false;
212 radeon_irq_set(rdev);
213 }
214 spin_unlock_irqrestore(&rdev->irq.pflip_lock[crtc], irqflags);
215}
216
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 */
28#include <drm/drmP.h>
29#include <drm/drm_crtc_helper.h>
30#include <drm/radeon_drm.h>
31#include "radeon_reg.h"
32#include "radeon.h"
33#include "atom.h"
34
35#include <linux/pm_runtime.h>
36
37#define RADEON_WAIT_IDLE_TIMEOUT 200
38
39/**
40 * radeon_driver_irq_handler_kms - irq handler for KMS
41 *
42 * @int irq, void *arg: args
43 *
44 * This is the irq handler for the radeon KMS driver (all asics).
45 * radeon_irq_process is a macro that points to the per-asic
46 * irq handler callback.
47 */
48irqreturn_t radeon_driver_irq_handler_kms(int irq, void *arg)
49{
50 struct drm_device *dev = (struct drm_device *) arg;
51 struct radeon_device *rdev = dev->dev_private;
52 irqreturn_t ret;
53
54 ret = radeon_irq_process(rdev);
55 if (ret == IRQ_HANDLED)
56 pm_runtime_mark_last_busy(dev->dev);
57 return ret;
58}
59
60/*
61 * Handle hotplug events outside the interrupt handler proper.
62 */
63/**
64 * radeon_hotplug_work_func - display hotplug work handler
65 *
66 * @work: work struct
67 *
68 * This is the hot plug event work handler (all asics).
69 * The work gets scheduled from the irq handler if there
70 * was a hot plug interrupt. It walks the connector table
71 * and calls the hotplug handler for each one, then sends
72 * a drm hotplug event to alert userspace.
73 */
74static void radeon_hotplug_work_func(struct work_struct *work)
75{
76 struct radeon_device *rdev = container_of(work, struct radeon_device,
77 hotplug_work);
78 struct drm_device *dev = rdev->ddev;
79 struct drm_mode_config *mode_config = &dev->mode_config;
80 struct drm_connector *connector;
81
82 if (mode_config->num_connector) {
83 list_for_each_entry(connector, &mode_config->connector_list, head)
84 radeon_connector_hotplug(connector);
85 }
86 /* Just fire off a uevent and let userspace tell us what to do */
87 drm_helper_hpd_irq_event(dev);
88}
89
90/**
91 * radeon_irq_reset_work_func - execute gpu reset
92 *
93 * @work: work struct
94 *
95 * Execute scheduled gpu reset (cayman+).
96 * This function is called when the irq handler
97 * thinks we need a gpu reset.
98 */
99static void radeon_irq_reset_work_func(struct work_struct *work)
100{
101 struct radeon_device *rdev = container_of(work, struct radeon_device,
102 reset_work);
103
104 radeon_gpu_reset(rdev);
105}
106
107/**
108 * radeon_driver_irq_preinstall_kms - drm irq preinstall callback
109 *
110 * @dev: drm dev pointer
111 *
112 * Gets the hw ready to enable irqs (all asics).
113 * This function disables all interrupt sources on the GPU.
114 */
115void radeon_driver_irq_preinstall_kms(struct drm_device *dev)
116{
117 struct radeon_device *rdev = dev->dev_private;
118 unsigned long irqflags;
119 unsigned i;
120
121 spin_lock_irqsave(&rdev->irq.lock, irqflags);
122 /* Disable *all* interrupts */
123 for (i = 0; i < RADEON_NUM_RINGS; i++)
124 atomic_set(&rdev->irq.ring_int[i], 0);
125 rdev->irq.dpm_thermal = false;
126 for (i = 0; i < RADEON_MAX_HPD_PINS; i++)
127 rdev->irq.hpd[i] = false;
128 for (i = 0; i < RADEON_MAX_CRTCS; i++) {
129 rdev->irq.crtc_vblank_int[i] = false;
130 atomic_set(&rdev->irq.pflip[i], 0);
131 rdev->irq.afmt[i] = false;
132 }
133 radeon_irq_set(rdev);
134 spin_unlock_irqrestore(&rdev->irq.lock, irqflags);
135 /* Clear bits */
136 radeon_irq_process(rdev);
137}
138
139/**
140 * radeon_driver_irq_postinstall_kms - drm irq preinstall callback
141 *
142 * @dev: drm dev pointer
143 *
144 * Handles stuff to be done after enabling irqs (all asics).
145 * Returns 0 on success.
146 */
147int radeon_driver_irq_postinstall_kms(struct drm_device *dev)
148{
149 dev->max_vblank_count = 0x001fffff;
150 return 0;
151}
152
153/**
154 * radeon_driver_irq_uninstall_kms - drm irq uninstall callback
155 *
156 * @dev: drm dev pointer
157 *
158 * This function disables all interrupt sources on the GPU (all asics).
159 */
160void radeon_driver_irq_uninstall_kms(struct drm_device *dev)
161{
162 struct radeon_device *rdev = dev->dev_private;
163 unsigned long irqflags;
164 unsigned i;
165
166 if (rdev == NULL) {
167 return;
168 }
169 spin_lock_irqsave(&rdev->irq.lock, irqflags);
170 /* Disable *all* interrupts */
171 for (i = 0; i < RADEON_NUM_RINGS; i++)
172 atomic_set(&rdev->irq.ring_int[i], 0);
173 rdev->irq.dpm_thermal = false;
174 for (i = 0; i < RADEON_MAX_HPD_PINS; i++)
175 rdev->irq.hpd[i] = false;
176 for (i = 0; i < RADEON_MAX_CRTCS; i++) {
177 rdev->irq.crtc_vblank_int[i] = false;
178 atomic_set(&rdev->irq.pflip[i], 0);
179 rdev->irq.afmt[i] = false;
180 }
181 radeon_irq_set(rdev);
182 spin_unlock_irqrestore(&rdev->irq.lock, irqflags);
183}
184
185/**
186 * radeon_msi_ok - asic specific msi checks
187 *
188 * @rdev: radeon device pointer
189 *
190 * Handles asic specific MSI checks to determine if
191 * MSIs should be enabled on a particular chip (all asics).
192 * Returns true if MSIs should be enabled, false if MSIs
193 * should not be enabled.
194 */
195static bool radeon_msi_ok(struct radeon_device *rdev)
196{
197 /* RV370/RV380 was first asic with MSI support */
198 if (rdev->family < CHIP_RV380)
199 return false;
200
201 /* MSIs don't work on AGP */
202 if (rdev->flags & RADEON_IS_AGP)
203 return false;
204
205 /* force MSI on */
206 if (radeon_msi == 1)
207 return true;
208 else if (radeon_msi == 0)
209 return false;
210
211 /* Quirks */
212 /* HP RS690 only seems to work with MSIs. */
213 if ((rdev->pdev->device == 0x791f) &&
214 (rdev->pdev->subsystem_vendor == 0x103c) &&
215 (rdev->pdev->subsystem_device == 0x30c2))
216 return true;
217
218 /* Dell RS690 only seems to work with MSIs. */
219 if ((rdev->pdev->device == 0x791f) &&
220 (rdev->pdev->subsystem_vendor == 0x1028) &&
221 (rdev->pdev->subsystem_device == 0x01fc))
222 return true;
223
224 /* Dell RS690 only seems to work with MSIs. */
225 if ((rdev->pdev->device == 0x791f) &&
226 (rdev->pdev->subsystem_vendor == 0x1028) &&
227 (rdev->pdev->subsystem_device == 0x01fd))
228 return true;
229
230 /* Gateway RS690 only seems to work with MSIs. */
231 if ((rdev->pdev->device == 0x791f) &&
232 (rdev->pdev->subsystem_vendor == 0x107b) &&
233 (rdev->pdev->subsystem_device == 0x0185))
234 return true;
235
236 /* try and enable MSIs by default on all RS690s */
237 if (rdev->family == CHIP_RS690)
238 return true;
239
240 /* RV515 seems to have MSI issues where it loses
241 * MSI rearms occasionally. This leads to lockups and freezes.
242 * disable it by default.
243 */
244 if (rdev->family == CHIP_RV515)
245 return false;
246 if (rdev->flags & RADEON_IS_IGP) {
247 /* APUs work fine with MSIs */
248 if (rdev->family >= CHIP_PALM)
249 return true;
250 /* lots of IGPs have problems with MSIs */
251 return false;
252 }
253
254 return true;
255}
256
257/**
258 * radeon_irq_kms_init - init driver interrupt info
259 *
260 * @rdev: radeon device pointer
261 *
262 * Sets up the work irq handlers, vblank init, MSIs, etc. (all asics).
263 * Returns 0 for success, error for failure.
264 */
265int radeon_irq_kms_init(struct radeon_device *rdev)
266{
267 int r = 0;
268
269 spin_lock_init(&rdev->irq.lock);
270 r = drm_vblank_init(rdev->ddev, rdev->num_crtc);
271 if (r) {
272 return r;
273 }
274 /* enable msi */
275 rdev->msi_enabled = 0;
276
277 if (radeon_msi_ok(rdev)) {
278 int ret = pci_enable_msi(rdev->pdev);
279 if (!ret) {
280 rdev->msi_enabled = 1;
281 dev_info(rdev->dev, "radeon: using MSI.\n");
282 }
283 }
284
285 INIT_WORK(&rdev->hotplug_work, radeon_hotplug_work_func);
286 INIT_WORK(&rdev->audio_work, r600_audio_update_hdmi);
287 INIT_WORK(&rdev->reset_work, radeon_irq_reset_work_func);
288
289 rdev->irq.installed = true;
290 r = drm_irq_install(rdev->ddev);
291 if (r) {
292 rdev->irq.installed = false;
293 flush_work(&rdev->hotplug_work);
294 return r;
295 }
296
297 DRM_INFO("radeon: irq initialized.\n");
298 return 0;
299}
300
301/**
302 * radeon_irq_kms_fini - tear down driver interrupt info
303 *
304 * @rdev: radeon device pointer
305 *
306 * Tears down the work irq handlers, vblank handlers, MSIs, etc. (all asics).
307 */
308void radeon_irq_kms_fini(struct radeon_device *rdev)
309{
310 drm_vblank_cleanup(rdev->ddev);
311 if (rdev->irq.installed) {
312 drm_irq_uninstall(rdev->ddev);
313 rdev->irq.installed = false;
314 if (rdev->msi_enabled)
315 pci_disable_msi(rdev->pdev);
316 flush_work(&rdev->hotplug_work);
317 }
318}
319
320/**
321 * radeon_irq_kms_sw_irq_get - enable software interrupt
322 *
323 * @rdev: radeon device pointer
324 * @ring: ring whose interrupt you want to enable
325 *
326 * Enables the software interrupt for a specific ring (all asics).
327 * The software interrupt is generally used to signal a fence on
328 * a particular ring.
329 */
330void radeon_irq_kms_sw_irq_get(struct radeon_device *rdev, int ring)
331{
332 unsigned long irqflags;
333
334 if (!rdev->ddev->irq_enabled)
335 return;
336
337 if (atomic_inc_return(&rdev->irq.ring_int[ring]) == 1) {
338 spin_lock_irqsave(&rdev->irq.lock, irqflags);
339 radeon_irq_set(rdev);
340 spin_unlock_irqrestore(&rdev->irq.lock, irqflags);
341 }
342}
343
344/**
345 * radeon_irq_kms_sw_irq_put - disable software interrupt
346 *
347 * @rdev: radeon device pointer
348 * @ring: ring whose interrupt you want to disable
349 *
350 * Disables the software interrupt for a specific ring (all asics).
351 * The software interrupt is generally used to signal a fence on
352 * a particular ring.
353 */
354void radeon_irq_kms_sw_irq_put(struct radeon_device *rdev, int ring)
355{
356 unsigned long irqflags;
357
358 if (!rdev->ddev->irq_enabled)
359 return;
360
361 if (atomic_dec_and_test(&rdev->irq.ring_int[ring])) {
362 spin_lock_irqsave(&rdev->irq.lock, irqflags);
363 radeon_irq_set(rdev);
364 spin_unlock_irqrestore(&rdev->irq.lock, irqflags);
365 }
366}
367
368/**
369 * radeon_irq_kms_pflip_irq_get - enable pageflip interrupt
370 *
371 * @rdev: radeon device pointer
372 * @crtc: crtc whose interrupt you want to enable
373 *
374 * Enables the pageflip interrupt for a specific crtc (all asics).
375 * For pageflips we use the vblank interrupt source.
376 */
377void radeon_irq_kms_pflip_irq_get(struct radeon_device *rdev, int crtc)
378{
379 unsigned long irqflags;
380
381 if (crtc < 0 || crtc >= rdev->num_crtc)
382 return;
383
384 if (!rdev->ddev->irq_enabled)
385 return;
386
387 if (atomic_inc_return(&rdev->irq.pflip[crtc]) == 1) {
388 spin_lock_irqsave(&rdev->irq.lock, irqflags);
389 radeon_irq_set(rdev);
390 spin_unlock_irqrestore(&rdev->irq.lock, irqflags);
391 }
392}
393
394/**
395 * radeon_irq_kms_pflip_irq_put - disable pageflip interrupt
396 *
397 * @rdev: radeon device pointer
398 * @crtc: crtc whose interrupt you want to disable
399 *
400 * Disables the pageflip interrupt for a specific crtc (all asics).
401 * For pageflips we use the vblank interrupt source.
402 */
403void radeon_irq_kms_pflip_irq_put(struct radeon_device *rdev, int crtc)
404{
405 unsigned long irqflags;
406
407 if (crtc < 0 || crtc >= rdev->num_crtc)
408 return;
409
410 if (!rdev->ddev->irq_enabled)
411 return;
412
413 if (atomic_dec_and_test(&rdev->irq.pflip[crtc])) {
414 spin_lock_irqsave(&rdev->irq.lock, irqflags);
415 radeon_irq_set(rdev);
416 spin_unlock_irqrestore(&rdev->irq.lock, irqflags);
417 }
418}
419
420/**
421 * radeon_irq_kms_enable_afmt - enable audio format change interrupt
422 *
423 * @rdev: radeon device pointer
424 * @block: afmt block whose interrupt you want to enable
425 *
426 * Enables the afmt change interrupt for a specific afmt block (all asics).
427 */
428void radeon_irq_kms_enable_afmt(struct radeon_device *rdev, int block)
429{
430 unsigned long irqflags;
431
432 if (!rdev->ddev->irq_enabled)
433 return;
434
435 spin_lock_irqsave(&rdev->irq.lock, irqflags);
436 rdev->irq.afmt[block] = true;
437 radeon_irq_set(rdev);
438 spin_unlock_irqrestore(&rdev->irq.lock, irqflags);
439
440}
441
442/**
443 * radeon_irq_kms_disable_afmt - disable audio format change interrupt
444 *
445 * @rdev: radeon device pointer
446 * @block: afmt block whose interrupt you want to disable
447 *
448 * Disables the afmt change interrupt for a specific afmt block (all asics).
449 */
450void radeon_irq_kms_disable_afmt(struct radeon_device *rdev, int block)
451{
452 unsigned long irqflags;
453
454 if (!rdev->ddev->irq_enabled)
455 return;
456
457 spin_lock_irqsave(&rdev->irq.lock, irqflags);
458 rdev->irq.afmt[block] = false;
459 radeon_irq_set(rdev);
460 spin_unlock_irqrestore(&rdev->irq.lock, irqflags);
461}
462
463/**
464 * radeon_irq_kms_enable_hpd - enable hotplug detect interrupt
465 *
466 * @rdev: radeon device pointer
467 * @hpd_mask: mask of hpd pins you want to enable.
468 *
469 * Enables the hotplug detect interrupt for a specific hpd pin (all asics).
470 */
471void radeon_irq_kms_enable_hpd(struct radeon_device *rdev, unsigned hpd_mask)
472{
473 unsigned long irqflags;
474 int i;
475
476 if (!rdev->ddev->irq_enabled)
477 return;
478
479 spin_lock_irqsave(&rdev->irq.lock, irqflags);
480 for (i = 0; i < RADEON_MAX_HPD_PINS; ++i)
481 rdev->irq.hpd[i] |= !!(hpd_mask & (1 << i));
482 radeon_irq_set(rdev);
483 spin_unlock_irqrestore(&rdev->irq.lock, irqflags);
484}
485
486/**
487 * radeon_irq_kms_disable_hpd - disable hotplug detect interrupt
488 *
489 * @rdev: radeon device pointer
490 * @hpd_mask: mask of hpd pins you want to disable.
491 *
492 * Disables the hotplug detect interrupt for a specific hpd pin (all asics).
493 */
494void radeon_irq_kms_disable_hpd(struct radeon_device *rdev, unsigned hpd_mask)
495{
496 unsigned long irqflags;
497 int i;
498
499 if (!rdev->ddev->irq_enabled)
500 return;
501
502 spin_lock_irqsave(&rdev->irq.lock, irqflags);
503 for (i = 0; i < RADEON_MAX_HPD_PINS; ++i)
504 rdev->irq.hpd[i] &= !(hpd_mask & (1 << i));
505 radeon_irq_set(rdev);
506 spin_unlock_irqrestore(&rdev->irq.lock, irqflags);
507}
508