2 * Copyright 2008 Advanced Micro Devices, Inc.
3 * Copyright 2008 Red Hat Inc.
4 * Copyright 2009 Jerome Glisse.
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:
13 * The above copyright notice and this permission notice shall be included in
14 * all copies or substantial portions of the Software.
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.
24 * Authors: Dave Airlie
28 #include <linux/console.h>
29 #include <linux/slab.h>
31 #include <drm/drm_crtc_helper.h>
32 #include <drm/radeon_drm.h>
33 #include <linux/vgaarb.h>
34 #include <linux/vga_switcheroo.h>
35 #include <linux/efi.h>
36 #include "radeon_reg.h"
40 static const char radeon_family_name
[][16] = {
106 #define RADEON_PX_QUIRK_DISABLE_PX (1 << 0)
107 #define RADEON_PX_QUIRK_LONG_WAKEUP (1 << 1)
109 struct radeon_px_quirk
{
117 static struct radeon_px_quirk radeon_px_quirk_list
[] = {
118 /* Acer aspire 5560g (CPU: AMD A4-3305M; GPU: AMD Radeon HD 6480g + 7470m)
119 * https://bugzilla.kernel.org/show_bug.cgi?id=74551
121 { PCI_VENDOR_ID_ATI
, 0x6760, 0x1025, 0x0672, RADEON_PX_QUIRK_DISABLE_PX
},
122 /* Asus K73TA laptop with AMD A6-3400M APU and Radeon 6550 GPU
123 * https://bugzilla.kernel.org/show_bug.cgi?id=51381
125 { PCI_VENDOR_ID_ATI
, 0x6741, 0x1043, 0x108c, RADEON_PX_QUIRK_DISABLE_PX
},
126 /* Asus K53TK laptop with AMD A6-3420M APU and Radeon 7670m GPU
127 * https://bugzilla.kernel.org/show_bug.cgi?id=51381
129 { PCI_VENDOR_ID_ATI
, 0x6840, 0x1043, 0x2122, RADEON_PX_QUIRK_DISABLE_PX
},
130 /* macbook pro 8.2 */
131 { PCI_VENDOR_ID_ATI
, 0x6741, PCI_VENDOR_ID_APPLE
, 0x00e2, RADEON_PX_QUIRK_LONG_WAKEUP
},
135 bool radeon_is_px(struct drm_device
*dev
)
137 struct radeon_device
*rdev
= dev
->dev_private
;
139 if (rdev
->flags
& RADEON_IS_PX
)
144 static void radeon_device_handle_px_quirks(struct radeon_device
*rdev
)
146 struct radeon_px_quirk
*p
= radeon_px_quirk_list
;
148 /* Apply PX quirks */
149 while (p
&& p
->chip_device
!= 0) {
150 if (rdev
->pdev
->vendor
== p
->chip_vendor
&&
151 rdev
->pdev
->device
== p
->chip_device
&&
152 rdev
->pdev
->subsystem_vendor
== p
->subsys_vendor
&&
153 rdev
->pdev
->subsystem_device
== p
->subsys_device
) {
154 rdev
->px_quirk_flags
= p
->px_quirk_flags
;
160 if (rdev
->px_quirk_flags
& RADEON_PX_QUIRK_DISABLE_PX
)
161 rdev
->flags
&= ~RADEON_IS_PX
;
165 * radeon_program_register_sequence - program an array of registers.
167 * @rdev: radeon_device pointer
168 * @registers: pointer to the register array
169 * @array_size: size of the register array
171 * Programs an array or registers with and and or masks.
172 * This is a helper for setting golden registers.
174 void radeon_program_register_sequence(struct radeon_device
*rdev
,
175 const u32
*registers
,
176 const u32 array_size
)
178 u32 tmp
, reg
, and_mask
, or_mask
;
184 for (i
= 0; i
< array_size
; i
+=3) {
185 reg
= registers
[i
+ 0];
186 and_mask
= registers
[i
+ 1];
187 or_mask
= registers
[i
+ 2];
189 if (and_mask
== 0xffffffff) {
200 void radeon_pci_config_reset(struct radeon_device
*rdev
)
202 pci_write_config_dword(rdev
->pdev
, 0x7c, RADEON_ASIC_RESET_DATA
);
206 * radeon_surface_init - Clear GPU surface registers.
208 * @rdev: radeon_device pointer
210 * Clear GPU surface registers (r1xx-r5xx).
212 void radeon_surface_init(struct radeon_device
*rdev
)
214 /* FIXME: check this out */
215 if (rdev
->family
< CHIP_R600
) {
218 for (i
= 0; i
< RADEON_GEM_MAX_SURFACES
; i
++) {
219 if (rdev
->surface_regs
[i
].bo
)
220 radeon_bo_get_surface_reg(rdev
->surface_regs
[i
].bo
);
222 radeon_clear_surface_reg(rdev
, i
);
224 /* enable surfaces */
225 WREG32(RADEON_SURFACE_CNTL
, 0);
230 * GPU scratch registers helpers function.
233 * radeon_scratch_init - Init scratch register driver information.
235 * @rdev: radeon_device pointer
237 * Init CP scratch register driver information (r1xx-r5xx)
239 void radeon_scratch_init(struct radeon_device
*rdev
)
243 /* FIXME: check this out */
244 if (rdev
->family
< CHIP_R300
) {
245 rdev
->scratch
.num_reg
= 5;
247 rdev
->scratch
.num_reg
= 7;
249 rdev
->scratch
.reg_base
= RADEON_SCRATCH_REG0
;
250 for (i
= 0; i
< rdev
->scratch
.num_reg
; i
++) {
251 rdev
->scratch
.free
[i
] = true;
252 rdev
->scratch
.reg
[i
] = rdev
->scratch
.reg_base
+ (i
* 4);
257 * radeon_scratch_get - Allocate a scratch register
259 * @rdev: radeon_device pointer
260 * @reg: scratch register mmio offset
262 * Allocate a CP scratch register for use by the driver (all asics).
263 * Returns 0 on success or -EINVAL on failure.
265 int radeon_scratch_get(struct radeon_device
*rdev
, uint32_t *reg
)
269 for (i
= 0; i
< rdev
->scratch
.num_reg
; i
++) {
270 if (rdev
->scratch
.free
[i
]) {
271 rdev
->scratch
.free
[i
] = false;
272 *reg
= rdev
->scratch
.reg
[i
];
280 * radeon_scratch_free - Free a scratch register
282 * @rdev: radeon_device pointer
283 * @reg: scratch register mmio offset
285 * Free a CP scratch register allocated for use by the driver (all asics)
287 void radeon_scratch_free(struct radeon_device
*rdev
, uint32_t reg
)
291 for (i
= 0; i
< rdev
->scratch
.num_reg
; i
++) {
292 if (rdev
->scratch
.reg
[i
] == reg
) {
293 rdev
->scratch
.free
[i
] = true;
300 * GPU doorbell aperture helpers function.
303 * radeon_doorbell_init - Init doorbell driver information.
305 * @rdev: radeon_device pointer
307 * Init doorbell driver information (CIK)
308 * Returns 0 on success, error on failure.
310 static int radeon_doorbell_init(struct radeon_device
*rdev
)
312 /* doorbell bar mapping */
313 rdev
->doorbell
.base
= pci_resource_start(rdev
->pdev
, 2);
314 rdev
->doorbell
.size
= pci_resource_len(rdev
->pdev
, 2);
316 rdev
->doorbell
.num_doorbells
= min_t(u32
, rdev
->doorbell
.size
/ sizeof(u32
), RADEON_MAX_DOORBELLS
);
317 if (rdev
->doorbell
.num_doorbells
== 0)
320 rdev
->doorbell
.ptr
= ioremap(rdev
->doorbell
.base
, rdev
->doorbell
.num_doorbells
* sizeof(u32
));
321 if (rdev
->doorbell
.ptr
== NULL
) {
324 DRM_INFO("doorbell mmio base: 0x%08X\n", (uint32_t)rdev
->doorbell
.base
);
325 DRM_INFO("doorbell mmio size: %u\n", (unsigned)rdev
->doorbell
.size
);
327 memset(&rdev
->doorbell
.used
, 0, sizeof(rdev
->doorbell
.used
));
333 * radeon_doorbell_fini - Tear down doorbell driver information.
335 * @rdev: radeon_device pointer
337 * Tear down doorbell driver information (CIK)
339 static void radeon_doorbell_fini(struct radeon_device
*rdev
)
341 iounmap(rdev
->doorbell
.ptr
);
342 rdev
->doorbell
.ptr
= NULL
;
346 * radeon_doorbell_get - Allocate a doorbell entry
348 * @rdev: radeon_device pointer
349 * @doorbell: doorbell index
351 * Allocate a doorbell for use by the driver (all asics).
352 * Returns 0 on success or -EINVAL on failure.
354 int radeon_doorbell_get(struct radeon_device
*rdev
, u32
*doorbell
)
356 unsigned long offset
= find_first_zero_bit(rdev
->doorbell
.used
, rdev
->doorbell
.num_doorbells
);
357 if (offset
< rdev
->doorbell
.num_doorbells
) {
358 __set_bit(offset
, rdev
->doorbell
.used
);
367 * radeon_doorbell_free - Free a doorbell entry
369 * @rdev: radeon_device pointer
370 * @doorbell: doorbell index
372 * Free a doorbell allocated for use by the driver (all asics)
374 void radeon_doorbell_free(struct radeon_device
*rdev
, u32 doorbell
)
376 if (doorbell
< rdev
->doorbell
.num_doorbells
)
377 __clear_bit(doorbell
, rdev
->doorbell
.used
);
381 * radeon_doorbell_get_kfd_info - Report doorbell configuration required to
384 * @rdev: radeon_device pointer
385 * @aperture_base: output returning doorbell aperture base physical address
386 * @aperture_size: output returning doorbell aperture size in bytes
387 * @start_offset: output returning # of doorbell bytes reserved for radeon.
389 * Radeon and the KFD share the doorbell aperture. Radeon sets it up,
390 * takes doorbells required for its own rings and reports the setup to KFD.
391 * Radeon reserved doorbells are at the start of the doorbell aperture.
393 void radeon_doorbell_get_kfd_info(struct radeon_device
*rdev
,
394 phys_addr_t
*aperture_base
,
395 size_t *aperture_size
,
396 size_t *start_offset
)
398 /* The first num_doorbells are used by radeon.
399 * KFD takes whatever's left in the aperture. */
400 if (rdev
->doorbell
.size
> rdev
->doorbell
.num_doorbells
* sizeof(u32
)) {
401 *aperture_base
= rdev
->doorbell
.base
;
402 *aperture_size
= rdev
->doorbell
.size
;
403 *start_offset
= rdev
->doorbell
.num_doorbells
* sizeof(u32
);
413 * Writeback is the the method by which the the GPU updates special pages
414 * in memory with the status of certain GPU events (fences, ring pointers,
419 * radeon_wb_disable - Disable Writeback
421 * @rdev: radeon_device pointer
423 * Disables Writeback (all asics). Used for suspend.
425 void radeon_wb_disable(struct radeon_device
*rdev
)
427 rdev
->wb
.enabled
= false;
431 * radeon_wb_fini - Disable Writeback and free memory
433 * @rdev: radeon_device pointer
435 * Disables Writeback and frees the Writeback memory (all asics).
436 * Used at driver shutdown.
438 void radeon_wb_fini(struct radeon_device
*rdev
)
440 radeon_wb_disable(rdev
);
441 if (rdev
->wb
.wb_obj
) {
442 if (!radeon_bo_reserve(rdev
->wb
.wb_obj
, false)) {
443 radeon_bo_kunmap(rdev
->wb
.wb_obj
);
444 radeon_bo_unpin(rdev
->wb
.wb_obj
);
445 radeon_bo_unreserve(rdev
->wb
.wb_obj
);
447 radeon_bo_unref(&rdev
->wb
.wb_obj
);
449 rdev
->wb
.wb_obj
= NULL
;
454 * radeon_wb_init- Init Writeback driver info and allocate memory
456 * @rdev: radeon_device pointer
458 * Disables Writeback and frees the Writeback memory (all asics).
459 * Used at driver startup.
460 * Returns 0 on success or an -error on failure.
462 int radeon_wb_init(struct radeon_device
*rdev
)
466 if (rdev
->wb
.wb_obj
== NULL
) {
467 r
= radeon_bo_create(rdev
, RADEON_GPU_PAGE_SIZE
, PAGE_SIZE
, true,
468 RADEON_GEM_DOMAIN_GTT
, 0, NULL
, NULL
,
471 dev_warn(rdev
->dev
, "(%d) create WB bo failed\n", r
);
474 r
= radeon_bo_reserve(rdev
->wb
.wb_obj
, false);
475 if (unlikely(r
!= 0)) {
476 radeon_wb_fini(rdev
);
479 r
= radeon_bo_pin(rdev
->wb
.wb_obj
, RADEON_GEM_DOMAIN_GTT
,
482 radeon_bo_unreserve(rdev
->wb
.wb_obj
);
483 dev_warn(rdev
->dev
, "(%d) pin WB bo failed\n", r
);
484 radeon_wb_fini(rdev
);
487 r
= radeon_bo_kmap(rdev
->wb
.wb_obj
, (void **)&rdev
->wb
.wb
);
488 radeon_bo_unreserve(rdev
->wb
.wb_obj
);
490 dev_warn(rdev
->dev
, "(%d) map WB bo failed\n", r
);
491 radeon_wb_fini(rdev
);
496 /* clear wb memory */
497 memset((char *)rdev
->wb
.wb
, 0, RADEON_GPU_PAGE_SIZE
);
498 /* disable event_write fences */
499 rdev
->wb
.use_event
= false;
500 /* disabled via module param */
501 if (radeon_no_wb
== 1) {
502 rdev
->wb
.enabled
= false;
504 if (rdev
->flags
& RADEON_IS_AGP
) {
505 /* often unreliable on AGP */
506 rdev
->wb
.enabled
= false;
507 } else if (rdev
->family
< CHIP_R300
) {
508 /* often unreliable on pre-r300 */
509 rdev
->wb
.enabled
= false;
511 rdev
->wb
.enabled
= true;
512 /* event_write fences are only available on r600+ */
513 if (rdev
->family
>= CHIP_R600
) {
514 rdev
->wb
.use_event
= true;
518 /* always use writeback/events on NI, APUs */
519 if (rdev
->family
>= CHIP_PALM
) {
520 rdev
->wb
.enabled
= true;
521 rdev
->wb
.use_event
= true;
524 dev_info(rdev
->dev
, "WB %sabled\n", rdev
->wb
.enabled
? "en" : "dis");
530 * radeon_vram_location - try to find VRAM location
531 * @rdev: radeon device structure holding all necessary informations
532 * @mc: memory controller structure holding memory informations
533 * @base: base address at which to put VRAM
535 * Function will place try to place VRAM at base address provided
536 * as parameter (which is so far either PCI aperture address or
537 * for IGP TOM base address).
539 * If there is not enough space to fit the unvisible VRAM in the 32bits
540 * address space then we limit the VRAM size to the aperture.
542 * If we are using AGP and if the AGP aperture doesn't allow us to have
543 * room for all the VRAM than we restrict the VRAM to the PCI aperture
544 * size and print a warning.
546 * This function will never fails, worst case are limiting VRAM.
548 * Note: GTT start, end, size should be initialized before calling this
549 * function on AGP platform.
551 * Note: We don't explicitly enforce VRAM start to be aligned on VRAM size,
552 * this shouldn't be a problem as we are using the PCI aperture as a reference.
553 * Otherwise this would be needed for rv280, all r3xx, and all r4xx, but
556 * Note: we use mc_vram_size as on some board we need to program the mc to
557 * cover the whole aperture even if VRAM size is inferior to aperture size
558 * Novell bug 204882 + along with lots of ubuntu ones
560 * Note: when limiting vram it's safe to overwritte real_vram_size because
561 * we are not in case where real_vram_size is inferior to mc_vram_size (ie
562 * note afected by bogus hw of Novell bug 204882 + along with lots of ubuntu
565 * Note: IGP TOM addr should be the same as the aperture addr, we don't
566 * explicitly check for that thought.
568 * FIXME: when reducing VRAM size align new size on power of 2.
570 void radeon_vram_location(struct radeon_device
*rdev
, struct radeon_mc
*mc
, u64 base
)
572 uint64_t limit
= (uint64_t)radeon_vram_limit
<< 20;
574 mc
->vram_start
= base
;
575 if (mc
->mc_vram_size
> (rdev
->mc
.mc_mask
- base
+ 1)) {
576 dev_warn(rdev
->dev
, "limiting VRAM to PCI aperture size\n");
577 mc
->real_vram_size
= mc
->aper_size
;
578 mc
->mc_vram_size
= mc
->aper_size
;
580 mc
->vram_end
= mc
->vram_start
+ mc
->mc_vram_size
- 1;
581 if (rdev
->flags
& RADEON_IS_AGP
&& mc
->vram_end
> mc
->gtt_start
&& mc
->vram_start
<= mc
->gtt_end
) {
582 dev_warn(rdev
->dev
, "limiting VRAM to PCI aperture size\n");
583 mc
->real_vram_size
= mc
->aper_size
;
584 mc
->mc_vram_size
= mc
->aper_size
;
586 mc
->vram_end
= mc
->vram_start
+ mc
->mc_vram_size
- 1;
587 if (limit
&& limit
< mc
->real_vram_size
)
588 mc
->real_vram_size
= limit
;
589 dev_info(rdev
->dev
, "VRAM: %lluM 0x%016llX - 0x%016llX (%lluM used)\n",
590 mc
->mc_vram_size
>> 20, mc
->vram_start
,
591 mc
->vram_end
, mc
->real_vram_size
>> 20);
595 * radeon_gtt_location - try to find GTT location
596 * @rdev: radeon device structure holding all necessary informations
597 * @mc: memory controller structure holding memory informations
599 * Function will place try to place GTT before or after VRAM.
601 * If GTT size is bigger than space left then we ajust GTT size.
602 * Thus function will never fails.
604 * FIXME: when reducing GTT size align new size on power of 2.
606 void radeon_gtt_location(struct radeon_device
*rdev
, struct radeon_mc
*mc
)
608 u64 size_af
, size_bf
;
610 size_af
= ((rdev
->mc
.mc_mask
- mc
->vram_end
) + mc
->gtt_base_align
) & ~mc
->gtt_base_align
;
611 size_bf
= mc
->vram_start
& ~mc
->gtt_base_align
;
612 if (size_bf
> size_af
) {
613 if (mc
->gtt_size
> size_bf
) {
614 dev_warn(rdev
->dev
, "limiting GTT\n");
615 mc
->gtt_size
= size_bf
;
617 mc
->gtt_start
= (mc
->vram_start
& ~mc
->gtt_base_align
) - mc
->gtt_size
;
619 if (mc
->gtt_size
> size_af
) {
620 dev_warn(rdev
->dev
, "limiting GTT\n");
621 mc
->gtt_size
= size_af
;
623 mc
->gtt_start
= (mc
->vram_end
+ 1 + mc
->gtt_base_align
) & ~mc
->gtt_base_align
;
625 mc
->gtt_end
= mc
->gtt_start
+ mc
->gtt_size
- 1;
626 dev_info(rdev
->dev
, "GTT: %lluM 0x%016llX - 0x%016llX\n",
627 mc
->gtt_size
>> 20, mc
->gtt_start
, mc
->gtt_end
);
631 * GPU helpers function.
634 * radeon_card_posted - check if the hw has already been initialized
636 * @rdev: radeon_device pointer
638 * Check if the asic has been initialized (all asics).
639 * Used at driver startup.
640 * Returns true if initialized or false if not.
642 bool radeon_card_posted(struct radeon_device
*rdev
)
646 /* required for EFI mode on macbook2,1 which uses an r5xx asic */
647 if (efi_enabled(EFI_BOOT
) &&
648 (rdev
->pdev
->subsystem_vendor
== PCI_VENDOR_ID_APPLE
) &&
649 (rdev
->family
< CHIP_R600
))
652 if (ASIC_IS_NODCE(rdev
))
655 /* first check CRTCs */
656 if (ASIC_IS_DCE4(rdev
)) {
657 reg
= RREG32(EVERGREEN_CRTC_CONTROL
+ EVERGREEN_CRTC0_REGISTER_OFFSET
) |
658 RREG32(EVERGREEN_CRTC_CONTROL
+ EVERGREEN_CRTC1_REGISTER_OFFSET
);
659 if (rdev
->num_crtc
>= 4) {
660 reg
|= RREG32(EVERGREEN_CRTC_CONTROL
+ EVERGREEN_CRTC2_REGISTER_OFFSET
) |
661 RREG32(EVERGREEN_CRTC_CONTROL
+ EVERGREEN_CRTC3_REGISTER_OFFSET
);
663 if (rdev
->num_crtc
>= 6) {
664 reg
|= RREG32(EVERGREEN_CRTC_CONTROL
+ EVERGREEN_CRTC4_REGISTER_OFFSET
) |
665 RREG32(EVERGREEN_CRTC_CONTROL
+ EVERGREEN_CRTC5_REGISTER_OFFSET
);
667 if (reg
& EVERGREEN_CRTC_MASTER_EN
)
669 } else if (ASIC_IS_AVIVO(rdev
)) {
670 reg
= RREG32(AVIVO_D1CRTC_CONTROL
) |
671 RREG32(AVIVO_D2CRTC_CONTROL
);
672 if (reg
& AVIVO_CRTC_EN
) {
676 reg
= RREG32(RADEON_CRTC_GEN_CNTL
) |
677 RREG32(RADEON_CRTC2_GEN_CNTL
);
678 if (reg
& RADEON_CRTC_EN
) {
684 /* then check MEM_SIZE, in case the crtcs are off */
685 if (rdev
->family
>= CHIP_R600
)
686 reg
= RREG32(R600_CONFIG_MEMSIZE
);
688 reg
= RREG32(RADEON_CONFIG_MEMSIZE
);
698 * radeon_update_bandwidth_info - update display bandwidth params
700 * @rdev: radeon_device pointer
702 * Used when sclk/mclk are switched or display modes are set.
703 * params are used to calculate display watermarks (all asics)
705 void radeon_update_bandwidth_info(struct radeon_device
*rdev
)
708 u32 sclk
= rdev
->pm
.current_sclk
;
709 u32 mclk
= rdev
->pm
.current_mclk
;
711 /* sclk/mclk in Mhz */
712 a
.full
= dfixed_const(100);
713 rdev
->pm
.sclk
.full
= dfixed_const(sclk
);
714 rdev
->pm
.sclk
.full
= dfixed_div(rdev
->pm
.sclk
, a
);
715 rdev
->pm
.mclk
.full
= dfixed_const(mclk
);
716 rdev
->pm
.mclk
.full
= dfixed_div(rdev
->pm
.mclk
, a
);
718 if (rdev
->flags
& RADEON_IS_IGP
) {
719 a
.full
= dfixed_const(16);
720 /* core_bandwidth = sclk(Mhz) * 16 */
721 rdev
->pm
.core_bandwidth
.full
= dfixed_div(rdev
->pm
.sclk
, a
);
726 * radeon_boot_test_post_card - check and possibly initialize the hw
728 * @rdev: radeon_device pointer
730 * Check if the asic is initialized and if not, attempt to initialize
732 * Returns true if initialized or false if not.
734 bool radeon_boot_test_post_card(struct radeon_device
*rdev
)
736 if (radeon_card_posted(rdev
))
740 DRM_INFO("GPU not posted. posting now...\n");
741 if (rdev
->is_atom_bios
)
742 atom_asic_init(rdev
->mode_info
.atom_context
);
744 radeon_combios_asic_init(rdev
->ddev
);
747 dev_err(rdev
->dev
, "Card not posted and no BIOS - ignoring\n");
753 * radeon_dummy_page_init - init dummy page used by the driver
755 * @rdev: radeon_device pointer
757 * Allocate the dummy page used by the driver (all asics).
758 * This dummy page is used by the driver as a filler for gart entries
759 * when pages are taken out of the GART
760 * Returns 0 on sucess, -ENOMEM on failure.
762 int radeon_dummy_page_init(struct radeon_device
*rdev
)
764 if (rdev
->dummy_page
.page
)
766 rdev
->dummy_page
.page
= alloc_page(GFP_DMA32
| GFP_KERNEL
| __GFP_ZERO
);
767 if (rdev
->dummy_page
.page
== NULL
)
769 rdev
->dummy_page
.addr
= pci_map_page(rdev
->pdev
, rdev
->dummy_page
.page
,
770 0, PAGE_SIZE
, PCI_DMA_BIDIRECTIONAL
);
771 if (pci_dma_mapping_error(rdev
->pdev
, rdev
->dummy_page
.addr
)) {
772 dev_err(&rdev
->pdev
->dev
, "Failed to DMA MAP the dummy page\n");
773 __free_page(rdev
->dummy_page
.page
);
774 rdev
->dummy_page
.page
= NULL
;
777 rdev
->dummy_page
.entry
= radeon_gart_get_page_entry(rdev
->dummy_page
.addr
,
778 RADEON_GART_PAGE_DUMMY
);
783 * radeon_dummy_page_fini - free dummy page used by the driver
785 * @rdev: radeon_device pointer
787 * Frees the dummy page used by the driver (all asics).
789 void radeon_dummy_page_fini(struct radeon_device
*rdev
)
791 if (rdev
->dummy_page
.page
== NULL
)
793 pci_unmap_page(rdev
->pdev
, rdev
->dummy_page
.addr
,
794 PAGE_SIZE
, PCI_DMA_BIDIRECTIONAL
);
795 __free_page(rdev
->dummy_page
.page
);
796 rdev
->dummy_page
.page
= NULL
;
800 /* ATOM accessor methods */
802 * ATOM is an interpreted byte code stored in tables in the vbios. The
803 * driver registers callbacks to access registers and the interpreter
804 * in the driver parses the tables and executes then to program specific
805 * actions (set display modes, asic init, etc.). See radeon_atombios.c,
806 * atombios.h, and atom.c
810 * cail_pll_read - read PLL register
812 * @info: atom card_info pointer
813 * @reg: PLL register offset
815 * Provides a PLL register accessor for the atom interpreter (r4xx+).
816 * Returns the value of the PLL register.
818 static uint32_t cail_pll_read(struct card_info
*info
, uint32_t reg
)
820 struct radeon_device
*rdev
= info
->dev
->dev_private
;
823 r
= rdev
->pll_rreg(rdev
, reg
);
828 * cail_pll_write - write PLL register
830 * @info: atom card_info pointer
831 * @reg: PLL register offset
832 * @val: value to write to the pll register
834 * Provides a PLL register accessor for the atom interpreter (r4xx+).
836 static void cail_pll_write(struct card_info
*info
, uint32_t reg
, uint32_t val
)
838 struct radeon_device
*rdev
= info
->dev
->dev_private
;
840 rdev
->pll_wreg(rdev
, reg
, val
);
844 * cail_mc_read - read MC (Memory Controller) register
846 * @info: atom card_info pointer
847 * @reg: MC register offset
849 * Provides an MC register accessor for the atom interpreter (r4xx+).
850 * Returns the value of the MC register.
852 static uint32_t cail_mc_read(struct card_info
*info
, uint32_t reg
)
854 struct radeon_device
*rdev
= info
->dev
->dev_private
;
857 r
= rdev
->mc_rreg(rdev
, reg
);
862 * cail_mc_write - write MC (Memory Controller) register
864 * @info: atom card_info pointer
865 * @reg: MC register offset
866 * @val: value to write to the pll register
868 * Provides a MC register accessor for the atom interpreter (r4xx+).
870 static void cail_mc_write(struct card_info
*info
, uint32_t reg
, uint32_t val
)
872 struct radeon_device
*rdev
= info
->dev
->dev_private
;
874 rdev
->mc_wreg(rdev
, reg
, val
);
878 * cail_reg_write - write MMIO register
880 * @info: atom card_info pointer
881 * @reg: MMIO register offset
882 * @val: value to write to the pll register
884 * Provides a MMIO register accessor for the atom interpreter (r4xx+).
886 static void cail_reg_write(struct card_info
*info
, uint32_t reg
, uint32_t val
)
888 struct radeon_device
*rdev
= info
->dev
->dev_private
;
894 * cail_reg_read - read MMIO register
896 * @info: atom card_info pointer
897 * @reg: MMIO register offset
899 * Provides an MMIO register accessor for the atom interpreter (r4xx+).
900 * Returns the value of the MMIO register.
902 static uint32_t cail_reg_read(struct card_info
*info
, uint32_t reg
)
904 struct radeon_device
*rdev
= info
->dev
->dev_private
;
912 * cail_ioreg_write - write IO register
914 * @info: atom card_info pointer
915 * @reg: IO register offset
916 * @val: value to write to the pll register
918 * Provides a IO register accessor for the atom interpreter (r4xx+).
920 static void cail_ioreg_write(struct card_info
*info
, uint32_t reg
, uint32_t val
)
922 struct radeon_device
*rdev
= info
->dev
->dev_private
;
924 WREG32_IO(reg
*4, val
);
928 * cail_ioreg_read - read IO register
930 * @info: atom card_info pointer
931 * @reg: IO register offset
933 * Provides an IO register accessor for the atom interpreter (r4xx+).
934 * Returns the value of the IO register.
936 static uint32_t cail_ioreg_read(struct card_info
*info
, uint32_t reg
)
938 struct radeon_device
*rdev
= info
->dev
->dev_private
;
941 r
= RREG32_IO(reg
*4);
946 * radeon_atombios_init - init the driver info and callbacks for atombios
948 * @rdev: radeon_device pointer
950 * Initializes the driver info and register access callbacks for the
951 * ATOM interpreter (r4xx+).
952 * Returns 0 on sucess, -ENOMEM on failure.
953 * Called at driver startup.
955 int radeon_atombios_init(struct radeon_device
*rdev
)
957 struct card_info
*atom_card_info
=
958 kzalloc(sizeof(struct card_info
), GFP_KERNEL
);
963 rdev
->mode_info
.atom_card_info
= atom_card_info
;
964 atom_card_info
->dev
= rdev
->ddev
;
965 atom_card_info
->reg_read
= cail_reg_read
;
966 atom_card_info
->reg_write
= cail_reg_write
;
967 /* needed for iio ops */
969 atom_card_info
->ioreg_read
= cail_ioreg_read
;
970 atom_card_info
->ioreg_write
= cail_ioreg_write
;
972 DRM_ERROR("Unable to find PCI I/O BAR; using MMIO for ATOM IIO\n");
973 atom_card_info
->ioreg_read
= cail_reg_read
;
974 atom_card_info
->ioreg_write
= cail_reg_write
;
976 atom_card_info
->mc_read
= cail_mc_read
;
977 atom_card_info
->mc_write
= cail_mc_write
;
978 atom_card_info
->pll_read
= cail_pll_read
;
979 atom_card_info
->pll_write
= cail_pll_write
;
981 rdev
->mode_info
.atom_context
= atom_parse(atom_card_info
, rdev
->bios
);
982 if (!rdev
->mode_info
.atom_context
) {
983 radeon_atombios_fini(rdev
);
987 mutex_init(&rdev
->mode_info
.atom_context
->mutex
);
988 mutex_init(&rdev
->mode_info
.atom_context
->scratch_mutex
);
989 radeon_atom_initialize_bios_scratch_regs(rdev
->ddev
);
990 atom_allocate_fb_scratch(rdev
->mode_info
.atom_context
);
995 * radeon_atombios_fini - free the driver info and callbacks for atombios
997 * @rdev: radeon_device pointer
999 * Frees the driver info and register access callbacks for the ATOM
1000 * interpreter (r4xx+).
1001 * Called at driver shutdown.
1003 void radeon_atombios_fini(struct radeon_device
*rdev
)
1005 if (rdev
->mode_info
.atom_context
) {
1006 kfree(rdev
->mode_info
.atom_context
->scratch
);
1008 kfree(rdev
->mode_info
.atom_context
);
1009 rdev
->mode_info
.atom_context
= NULL
;
1010 kfree(rdev
->mode_info
.atom_card_info
);
1011 rdev
->mode_info
.atom_card_info
= NULL
;
1016 * COMBIOS is the bios format prior to ATOM. It provides
1017 * command tables similar to ATOM, but doesn't have a unified
1018 * parser. See radeon_combios.c
1022 * radeon_combios_init - init the driver info for combios
1024 * @rdev: radeon_device pointer
1026 * Initializes the driver info for combios (r1xx-r3xx).
1027 * Returns 0 on sucess.
1028 * Called at driver startup.
1030 int radeon_combios_init(struct radeon_device
*rdev
)
1032 radeon_combios_initialize_bios_scratch_regs(rdev
->ddev
);
1037 * radeon_combios_fini - free the driver info for combios
1039 * @rdev: radeon_device pointer
1041 * Frees the driver info for combios (r1xx-r3xx).
1042 * Called at driver shutdown.
1044 void radeon_combios_fini(struct radeon_device
*rdev
)
1048 /* if we get transitioned to only one device, take VGA back */
1050 * radeon_vga_set_decode - enable/disable vga decode
1052 * @cookie: radeon_device pointer
1053 * @state: enable/disable vga decode
1055 * Enable/disable vga decode (all asics).
1056 * Returns VGA resource flags.
1058 static unsigned int radeon_vga_set_decode(void *cookie
, bool state
)
1060 struct radeon_device
*rdev
= cookie
;
1061 radeon_vga_set_state(rdev
, state
);
1063 return VGA_RSRC_LEGACY_IO
| VGA_RSRC_LEGACY_MEM
|
1064 VGA_RSRC_NORMAL_IO
| VGA_RSRC_NORMAL_MEM
;
1066 return VGA_RSRC_NORMAL_IO
| VGA_RSRC_NORMAL_MEM
;
1070 * radeon_check_pot_argument - check that argument is a power of two
1072 * @arg: value to check
1074 * Validates that a certain argument is a power of two (all asics).
1075 * Returns true if argument is valid.
1077 static bool radeon_check_pot_argument(int arg
)
1079 return (arg
& (arg
- 1)) == 0;
1083 * Determine a sensible default GART size according to ASIC family.
1085 * @family ASIC family name
1087 static int radeon_gart_size_auto(enum radeon_family family
)
1089 /* default to a larger gart size on newer asics */
1090 if (family
>= CHIP_TAHITI
)
1092 else if (family
>= CHIP_RV770
)
1099 * radeon_check_arguments - validate module params
1101 * @rdev: radeon_device pointer
1103 * Validates certain module parameters and updates
1104 * the associated values used by the driver (all asics).
1106 static void radeon_check_arguments(struct radeon_device
*rdev
)
1108 /* vramlimit must be a power of two */
1109 if (!radeon_check_pot_argument(radeon_vram_limit
)) {
1110 dev_warn(rdev
->dev
, "vram limit (%d) must be a power of 2\n",
1112 radeon_vram_limit
= 0;
1115 if (radeon_gart_size
== -1) {
1116 radeon_gart_size
= radeon_gart_size_auto(rdev
->family
);
1118 /* gtt size must be power of two and greater or equal to 32M */
1119 if (radeon_gart_size
< 32) {
1120 dev_warn(rdev
->dev
, "gart size (%d) too small\n",
1122 radeon_gart_size
= radeon_gart_size_auto(rdev
->family
);
1123 } else if (!radeon_check_pot_argument(radeon_gart_size
)) {
1124 dev_warn(rdev
->dev
, "gart size (%d) must be a power of 2\n",
1126 radeon_gart_size
= radeon_gart_size_auto(rdev
->family
);
1128 rdev
->mc
.gtt_size
= (uint64_t)radeon_gart_size
<< 20;
1130 /* AGP mode can only be -1, 1, 2, 4, 8 */
1131 switch (radeon_agpmode
) {
1140 dev_warn(rdev
->dev
, "invalid AGP mode %d (valid mode: "
1141 "-1, 0, 1, 2, 4, 8)\n", radeon_agpmode
);
1146 if (!radeon_check_pot_argument(radeon_vm_size
)) {
1147 dev_warn(rdev
->dev
, "VM size (%d) must be a power of 2\n",
1152 if (radeon_vm_size
< 1) {
1153 dev_warn(rdev
->dev
, "VM size (%d) to small, min is 1GB\n",
1159 * Max GPUVM size for Cayman, SI and CI are 40 bits.
1161 if (radeon_vm_size
> 1024) {
1162 dev_warn(rdev
->dev
, "VM size (%d) too large, max is 1TB\n",
1167 /* defines number of bits in page table versus page directory,
1168 * a page is 4KB so we have 12 bits offset, minimum 9 bits in the
1169 * page table and the remaining bits are in the page directory */
1170 if (radeon_vm_block_size
== -1) {
1172 /* Total bits covered by PD + PTs */
1173 unsigned bits
= ilog2(radeon_vm_size
) + 18;
1175 /* Make sure the PD is 4K in size up to 8GB address space.
1176 Above that split equal between PD and PTs */
1177 if (radeon_vm_size
<= 8)
1178 radeon_vm_block_size
= bits
- 9;
1180 radeon_vm_block_size
= (bits
+ 3) / 2;
1182 } else if (radeon_vm_block_size
< 9) {
1183 dev_warn(rdev
->dev
, "VM page table size (%d) too small\n",
1184 radeon_vm_block_size
);
1185 radeon_vm_block_size
= 9;
1188 if (radeon_vm_block_size
> 24 ||
1189 (radeon_vm_size
* 1024) < (1ull << radeon_vm_block_size
)) {
1190 dev_warn(rdev
->dev
, "VM page table size (%d) too large\n",
1191 radeon_vm_block_size
);
1192 radeon_vm_block_size
= 9;
1197 * radeon_switcheroo_set_state - set switcheroo state
1199 * @pdev: pci dev pointer
1200 * @state: vga switcheroo state
1202 * Callback for the switcheroo driver. Suspends or resumes the
1203 * the asics before or after it is powered up using ACPI methods.
1205 static void radeon_switcheroo_set_state(struct pci_dev
*pdev
, enum vga_switcheroo_state state
)
1207 struct drm_device
*dev
= pci_get_drvdata(pdev
);
1208 struct radeon_device
*rdev
= dev
->dev_private
;
1210 if (radeon_is_px(dev
) && state
== VGA_SWITCHEROO_OFF
)
1213 if (state
== VGA_SWITCHEROO_ON
) {
1214 unsigned d3_delay
= dev
->pdev
->d3_delay
;
1216 printk(KERN_INFO
"radeon: switched on\n");
1217 /* don't suspend or resume card normally */
1218 dev
->switch_power_state
= DRM_SWITCH_POWER_CHANGING
;
1220 if (d3_delay
< 20 && (rdev
->px_quirk_flags
& RADEON_PX_QUIRK_LONG_WAKEUP
))
1221 dev
->pdev
->d3_delay
= 20;
1223 radeon_resume_kms(dev
, true, true);
1225 dev
->pdev
->d3_delay
= d3_delay
;
1227 dev
->switch_power_state
= DRM_SWITCH_POWER_ON
;
1228 drm_kms_helper_poll_enable(dev
);
1230 printk(KERN_INFO
"radeon: switched off\n");
1231 drm_kms_helper_poll_disable(dev
);
1232 dev
->switch_power_state
= DRM_SWITCH_POWER_CHANGING
;
1233 radeon_suspend_kms(dev
, true, true);
1234 dev
->switch_power_state
= DRM_SWITCH_POWER_OFF
;
1239 * radeon_switcheroo_can_switch - see if switcheroo state can change
1241 * @pdev: pci dev pointer
1243 * Callback for the switcheroo driver. Check of the switcheroo
1244 * state can be changed.
1245 * Returns true if the state can be changed, false if not.
1247 static bool radeon_switcheroo_can_switch(struct pci_dev
*pdev
)
1249 struct drm_device
*dev
= pci_get_drvdata(pdev
);
1252 * FIXME: open_count is protected by drm_global_mutex but that would lead to
1253 * locking inversion with the driver load path. And the access here is
1254 * completely racy anyway. So don't bother with locking for now.
1256 return dev
->open_count
== 0;
1259 static const struct vga_switcheroo_client_ops radeon_switcheroo_ops
= {
1260 .set_gpu_state
= radeon_switcheroo_set_state
,
1262 .can_switch
= radeon_switcheroo_can_switch
,
1266 * radeon_device_init - initialize the driver
1268 * @rdev: radeon_device pointer
1269 * @pdev: drm dev pointer
1270 * @pdev: pci dev pointer
1271 * @flags: driver flags
1273 * Initializes the driver info and hw (all asics).
1274 * Returns 0 for success or an error on failure.
1275 * Called at driver startup.
1277 int radeon_device_init(struct radeon_device
*rdev
,
1278 struct drm_device
*ddev
,
1279 struct pci_dev
*pdev
,
1284 bool runtime
= false;
1286 rdev
->shutdown
= false;
1287 rdev
->dev
= &pdev
->dev
;
1290 rdev
->flags
= flags
;
1291 rdev
->family
= flags
& RADEON_FAMILY_MASK
;
1292 rdev
->is_atom_bios
= false;
1293 rdev
->usec_timeout
= RADEON_MAX_USEC_TIMEOUT
;
1294 rdev
->mc
.gtt_size
= 512 * 1024 * 1024;
1295 rdev
->accel_working
= false;
1296 /* set up ring ids */
1297 for (i
= 0; i
< RADEON_NUM_RINGS
; i
++) {
1298 rdev
->ring
[i
].idx
= i
;
1300 rdev
->fence_context
= fence_context_alloc(RADEON_NUM_RINGS
);
1302 DRM_INFO("initializing kernel modesetting (%s 0x%04X:0x%04X 0x%04X:0x%04X).\n",
1303 radeon_family_name
[rdev
->family
], pdev
->vendor
, pdev
->device
,
1304 pdev
->subsystem_vendor
, pdev
->subsystem_device
);
1306 /* mutex initialization are all done here so we
1307 * can recall function without having locking issues */
1308 mutex_init(&rdev
->ring_lock
);
1309 mutex_init(&rdev
->dc_hw_i2c_mutex
);
1310 atomic_set(&rdev
->ih
.lock
, 0);
1311 mutex_init(&rdev
->gem
.mutex
);
1312 mutex_init(&rdev
->pm
.mutex
);
1313 mutex_init(&rdev
->gpu_clock_mutex
);
1314 mutex_init(&rdev
->srbm_mutex
);
1315 mutex_init(&rdev
->grbm_idx_mutex
);
1316 init_rwsem(&rdev
->pm
.mclk_lock
);
1317 init_rwsem(&rdev
->exclusive_lock
);
1318 init_waitqueue_head(&rdev
->irq
.vblank_queue
);
1319 mutex_init(&rdev
->mn_lock
);
1320 hash_init(rdev
->mn_hash
);
1321 r
= radeon_gem_init(rdev
);
1325 radeon_check_arguments(rdev
);
1326 /* Adjust VM size here.
1327 * Max GPUVM size for cayman+ is 40 bits.
1329 rdev
->vm_manager
.max_pfn
= radeon_vm_size
<< 18;
1331 /* Set asic functions */
1332 r
= radeon_asic_init(rdev
);
1336 /* all of the newer IGP chips have an internal gart
1337 * However some rs4xx report as AGP, so remove that here.
1339 if ((rdev
->family
>= CHIP_RS400
) &&
1340 (rdev
->flags
& RADEON_IS_IGP
)) {
1341 rdev
->flags
&= ~RADEON_IS_AGP
;
1344 if (rdev
->flags
& RADEON_IS_AGP
&& radeon_agpmode
== -1) {
1345 radeon_agp_disable(rdev
);
1348 /* Set the internal MC address mask
1349 * This is the max address of the GPU's
1350 * internal address space.
1352 if (rdev
->family
>= CHIP_CAYMAN
)
1353 rdev
->mc
.mc_mask
= 0xffffffffffULL
; /* 40 bit MC */
1354 else if (rdev
->family
>= CHIP_CEDAR
)
1355 rdev
->mc
.mc_mask
= 0xfffffffffULL
; /* 36 bit MC */
1357 rdev
->mc
.mc_mask
= 0xffffffffULL
; /* 32 bit MC */
1359 /* set DMA mask + need_dma32 flags.
1360 * PCIE - can handle 40-bits.
1361 * IGP - can handle 40-bits
1362 * AGP - generally dma32 is safest
1363 * PCI - dma32 for legacy pci gart, 40 bits on newer asics
1365 rdev
->need_dma32
= false;
1366 if (rdev
->flags
& RADEON_IS_AGP
)
1367 rdev
->need_dma32
= true;
1368 if ((rdev
->flags
& RADEON_IS_PCI
) &&
1369 (rdev
->family
<= CHIP_RS740
))
1370 rdev
->need_dma32
= true;
1372 dma_bits
= rdev
->need_dma32
? 32 : 40;
1373 r
= pci_set_dma_mask(rdev
->pdev
, DMA_BIT_MASK(dma_bits
));
1375 rdev
->need_dma32
= true;
1377 printk(KERN_WARNING
"radeon: No suitable DMA available.\n");
1379 r
= pci_set_consistent_dma_mask(rdev
->pdev
, DMA_BIT_MASK(dma_bits
));
1381 pci_set_consistent_dma_mask(rdev
->pdev
, DMA_BIT_MASK(32));
1382 printk(KERN_WARNING
"radeon: No coherent DMA available.\n");
1385 /* Registers mapping */
1386 /* TODO: block userspace mapping of io register */
1387 spin_lock_init(&rdev
->mmio_idx_lock
);
1388 spin_lock_init(&rdev
->smc_idx_lock
);
1389 spin_lock_init(&rdev
->pll_idx_lock
);
1390 spin_lock_init(&rdev
->mc_idx_lock
);
1391 spin_lock_init(&rdev
->pcie_idx_lock
);
1392 spin_lock_init(&rdev
->pciep_idx_lock
);
1393 spin_lock_init(&rdev
->pif_idx_lock
);
1394 spin_lock_init(&rdev
->cg_idx_lock
);
1395 spin_lock_init(&rdev
->uvd_idx_lock
);
1396 spin_lock_init(&rdev
->rcu_idx_lock
);
1397 spin_lock_init(&rdev
->didt_idx_lock
);
1398 spin_lock_init(&rdev
->end_idx_lock
);
1399 if (rdev
->family
>= CHIP_BONAIRE
) {
1400 rdev
->rmmio_base
= pci_resource_start(rdev
->pdev
, 5);
1401 rdev
->rmmio_size
= pci_resource_len(rdev
->pdev
, 5);
1403 rdev
->rmmio_base
= pci_resource_start(rdev
->pdev
, 2);
1404 rdev
->rmmio_size
= pci_resource_len(rdev
->pdev
, 2);
1406 rdev
->rmmio
= ioremap(rdev
->rmmio_base
, rdev
->rmmio_size
);
1407 if (rdev
->rmmio
== NULL
) {
1410 DRM_INFO("register mmio base: 0x%08X\n", (uint32_t)rdev
->rmmio_base
);
1411 DRM_INFO("register mmio size: %u\n", (unsigned)rdev
->rmmio_size
);
1413 /* doorbell bar mapping */
1414 if (rdev
->family
>= CHIP_BONAIRE
)
1415 radeon_doorbell_init(rdev
);
1417 /* io port mapping */
1418 for (i
= 0; i
< DEVICE_COUNT_RESOURCE
; i
++) {
1419 if (pci_resource_flags(rdev
->pdev
, i
) & IORESOURCE_IO
) {
1420 rdev
->rio_mem_size
= pci_resource_len(rdev
->pdev
, i
);
1421 rdev
->rio_mem
= pci_iomap(rdev
->pdev
, i
, rdev
->rio_mem_size
);
1425 if (rdev
->rio_mem
== NULL
)
1426 DRM_ERROR("Unable to find PCI I/O BAR\n");
1428 if (rdev
->flags
& RADEON_IS_PX
)
1429 radeon_device_handle_px_quirks(rdev
);
1431 /* if we have > 1 VGA cards, then disable the radeon VGA resources */
1432 /* this will fail for cards that aren't VGA class devices, just
1434 vga_client_register(rdev
->pdev
, rdev
, NULL
, radeon_vga_set_decode
);
1436 if (rdev
->flags
& RADEON_IS_PX
)
1438 vga_switcheroo_register_client(rdev
->pdev
, &radeon_switcheroo_ops
, runtime
);
1440 vga_switcheroo_init_domain_pm_ops(rdev
->dev
, &rdev
->vga_pm_domain
);
1442 r
= radeon_init(rdev
);
1446 r
= radeon_gem_debugfs_init(rdev
);
1448 DRM_ERROR("registering gem debugfs failed (%d).\n", r
);
1451 r
= radeon_mst_debugfs_init(rdev
);
1453 DRM_ERROR("registering mst debugfs failed (%d).\n", r
);
1456 if (rdev
->flags
& RADEON_IS_AGP
&& !rdev
->accel_working
) {
1457 /* Acceleration not working on AGP card try again
1458 * with fallback to PCI or PCIE GART
1460 radeon_asic_reset(rdev
);
1462 radeon_agp_disable(rdev
);
1463 r
= radeon_init(rdev
);
1468 r
= radeon_ib_ring_tests(rdev
);
1470 DRM_ERROR("ib ring test failed (%d).\n", r
);
1473 * Turks/Thames GPU will freeze whole laptop if DPM is not restarted
1474 * after the CP ring have chew one packet at least. Hence here we stop
1475 * and restart DPM after the radeon_ib_ring_tests().
1477 if (rdev
->pm
.dpm_enabled
&&
1478 (rdev
->pm
.pm_method
== PM_METHOD_DPM
) &&
1479 (rdev
->family
== CHIP_TURKS
) &&
1480 (rdev
->flags
& RADEON_IS_MOBILITY
)) {
1481 mutex_lock(&rdev
->pm
.mutex
);
1482 radeon_dpm_disable(rdev
);
1483 radeon_dpm_enable(rdev
);
1484 mutex_unlock(&rdev
->pm
.mutex
);
1487 if ((radeon_testing
& 1)) {
1488 if (rdev
->accel_working
)
1489 radeon_test_moves(rdev
);
1491 DRM_INFO("radeon: acceleration disabled, skipping move tests\n");
1493 if ((radeon_testing
& 2)) {
1494 if (rdev
->accel_working
)
1495 radeon_test_syncing(rdev
);
1497 DRM_INFO("radeon: acceleration disabled, skipping sync tests\n");
1499 if (radeon_benchmarking
) {
1500 if (rdev
->accel_working
)
1501 radeon_benchmark(rdev
, radeon_benchmarking
);
1503 DRM_INFO("radeon: acceleration disabled, skipping benchmarks\n");
1509 vga_switcheroo_fini_domain_pm_ops(rdev
->dev
);
1513 static void radeon_debugfs_remove_files(struct radeon_device
*rdev
);
1516 * radeon_device_fini - tear down the driver
1518 * @rdev: radeon_device pointer
1520 * Tear down the driver info (all asics).
1521 * Called at driver shutdown.
1523 void radeon_device_fini(struct radeon_device
*rdev
)
1525 DRM_INFO("radeon: finishing device.\n");
1526 rdev
->shutdown
= true;
1527 /* evict vram memory */
1528 radeon_bo_evict_vram(rdev
);
1530 vga_switcheroo_unregister_client(rdev
->pdev
);
1531 if (rdev
->flags
& RADEON_IS_PX
)
1532 vga_switcheroo_fini_domain_pm_ops(rdev
->dev
);
1533 vga_client_register(rdev
->pdev
, NULL
, NULL
, NULL
);
1535 pci_iounmap(rdev
->pdev
, rdev
->rio_mem
);
1536 rdev
->rio_mem
= NULL
;
1537 iounmap(rdev
->rmmio
);
1539 if (rdev
->family
>= CHIP_BONAIRE
)
1540 radeon_doorbell_fini(rdev
);
1541 radeon_debugfs_remove_files(rdev
);
1549 * radeon_suspend_kms - initiate device suspend
1551 * @pdev: drm dev pointer
1552 * @state: suspend state
1554 * Puts the hw in the suspend state (all asics).
1555 * Returns 0 for success or an error on failure.
1556 * Called at driver suspend.
1558 int radeon_suspend_kms(struct drm_device
*dev
, bool suspend
, bool fbcon
)
1560 struct radeon_device
*rdev
;
1561 struct drm_crtc
*crtc
;
1562 struct drm_connector
*connector
;
1565 if (dev
== NULL
|| dev
->dev_private
== NULL
) {
1569 rdev
= dev
->dev_private
;
1571 if (dev
->switch_power_state
== DRM_SWITCH_POWER_OFF
)
1574 drm_kms_helper_poll_disable(dev
);
1576 /* turn off display hw */
1577 list_for_each_entry(connector
, &dev
->mode_config
.connector_list
, head
) {
1578 drm_helper_connector_dpms(connector
, DRM_MODE_DPMS_OFF
);
1581 /* unpin the front buffers and cursors */
1582 list_for_each_entry(crtc
, &dev
->mode_config
.crtc_list
, head
) {
1583 struct radeon_crtc
*radeon_crtc
= to_radeon_crtc(crtc
);
1584 struct radeon_framebuffer
*rfb
= to_radeon_framebuffer(crtc
->primary
->fb
);
1585 struct radeon_bo
*robj
;
1587 if (radeon_crtc
->cursor_bo
) {
1588 struct radeon_bo
*robj
= gem_to_radeon_bo(radeon_crtc
->cursor_bo
);
1589 r
= radeon_bo_reserve(robj
, false);
1591 radeon_bo_unpin(robj
);
1592 radeon_bo_unreserve(robj
);
1596 if (rfb
== NULL
|| rfb
->obj
== NULL
) {
1599 robj
= gem_to_radeon_bo(rfb
->obj
);
1600 /* don't unpin kernel fb objects */
1601 if (!radeon_fbdev_robj_is_fb(rdev
, robj
)) {
1602 r
= radeon_bo_reserve(robj
, false);
1604 radeon_bo_unpin(robj
);
1605 radeon_bo_unreserve(robj
);
1609 /* evict vram memory */
1610 radeon_bo_evict_vram(rdev
);
1612 /* wait for gpu to finish processing current batch */
1613 for (i
= 0; i
< RADEON_NUM_RINGS
; i
++) {
1614 r
= radeon_fence_wait_empty(rdev
, i
);
1616 /* delay GPU reset to resume */
1617 radeon_fence_driver_force_completion(rdev
, i
);
1621 radeon_save_bios_scratch_regs(rdev
);
1623 radeon_suspend(rdev
);
1624 radeon_hpd_fini(rdev
);
1625 /* evict remaining vram memory */
1626 radeon_bo_evict_vram(rdev
);
1628 radeon_agp_suspend(rdev
);
1630 pci_save_state(dev
->pdev
);
1632 /* Shut down the device */
1633 pci_disable_device(dev
->pdev
);
1634 pci_set_power_state(dev
->pdev
, PCI_D3hot
);
1639 radeon_fbdev_set_suspend(rdev
, 1);
1646 * radeon_resume_kms - initiate device resume
1648 * @pdev: drm dev pointer
1650 * Bring the hw back to operating state (all asics).
1651 * Returns 0 for success or an error on failure.
1652 * Called at driver resume.
1654 int radeon_resume_kms(struct drm_device
*dev
, bool resume
, bool fbcon
)
1656 struct drm_connector
*connector
;
1657 struct radeon_device
*rdev
= dev
->dev_private
;
1658 struct drm_crtc
*crtc
;
1661 if (dev
->switch_power_state
== DRM_SWITCH_POWER_OFF
)
1668 pci_set_power_state(dev
->pdev
, PCI_D0
);
1669 pci_restore_state(dev
->pdev
);
1670 if (pci_enable_device(dev
->pdev
)) {
1676 /* resume AGP if in use */
1677 radeon_agp_resume(rdev
);
1678 radeon_resume(rdev
);
1680 r
= radeon_ib_ring_tests(rdev
);
1682 DRM_ERROR("ib ring test failed (%d).\n", r
);
1684 if ((rdev
->pm
.pm_method
== PM_METHOD_DPM
) && rdev
->pm
.dpm_enabled
) {
1685 /* do dpm late init */
1686 r
= radeon_pm_late_init(rdev
);
1688 rdev
->pm
.dpm_enabled
= false;
1689 DRM_ERROR("radeon_pm_late_init failed, disabling dpm\n");
1692 /* resume old pm late */
1693 radeon_pm_resume(rdev
);
1696 radeon_restore_bios_scratch_regs(rdev
);
1699 list_for_each_entry(crtc
, &dev
->mode_config
.crtc_list
, head
) {
1700 struct radeon_crtc
*radeon_crtc
= to_radeon_crtc(crtc
);
1702 if (radeon_crtc
->cursor_bo
) {
1703 struct radeon_bo
*robj
= gem_to_radeon_bo(radeon_crtc
->cursor_bo
);
1704 r
= radeon_bo_reserve(robj
, false);
1706 /* Only 27 bit offset for legacy cursor */
1707 r
= radeon_bo_pin_restricted(robj
,
1708 RADEON_GEM_DOMAIN_VRAM
,
1709 ASIC_IS_AVIVO(rdev
) ?
1711 &radeon_crtc
->cursor_addr
);
1713 DRM_ERROR("Failed to pin cursor BO (%d)\n", r
);
1714 radeon_bo_unreserve(robj
);
1719 /* init dig PHYs, disp eng pll */
1720 if (rdev
->is_atom_bios
) {
1721 radeon_atom_encoder_init(rdev
);
1722 radeon_atom_disp_eng_pll_init(rdev
);
1723 /* turn on the BL */
1724 if (rdev
->mode_info
.bl_encoder
) {
1725 u8 bl_level
= radeon_get_backlight_level(rdev
,
1726 rdev
->mode_info
.bl_encoder
);
1727 radeon_set_backlight_level(rdev
, rdev
->mode_info
.bl_encoder
,
1731 /* reset hpd state */
1732 radeon_hpd_init(rdev
);
1733 /* blat the mode back in */
1735 drm_helper_resume_force_mode(dev
);
1736 /* turn on display hw */
1737 list_for_each_entry(connector
, &dev
->mode_config
.connector_list
, head
) {
1738 drm_helper_connector_dpms(connector
, DRM_MODE_DPMS_ON
);
1742 drm_kms_helper_poll_enable(dev
);
1744 /* set the power state here in case we are a PX system or headless */
1745 if ((rdev
->pm
.pm_method
== PM_METHOD_DPM
) && rdev
->pm
.dpm_enabled
)
1746 radeon_pm_compute_clocks(rdev
);
1749 radeon_fbdev_set_suspend(rdev
, 0);
1757 * radeon_gpu_reset - reset the asic
1759 * @rdev: radeon device pointer
1761 * Attempt the reset the GPU if it has hung (all asics).
1762 * Returns 0 for success or an error on failure.
1764 int radeon_gpu_reset(struct radeon_device
*rdev
)
1766 unsigned ring_sizes
[RADEON_NUM_RINGS
];
1767 uint32_t *ring_data
[RADEON_NUM_RINGS
];
1774 down_write(&rdev
->exclusive_lock
);
1776 if (!rdev
->needs_reset
) {
1777 up_write(&rdev
->exclusive_lock
);
1781 atomic_inc(&rdev
->gpu_reset_counter
);
1783 radeon_save_bios_scratch_regs(rdev
);
1785 resched
= ttm_bo_lock_delayed_workqueue(&rdev
->mman
.bdev
);
1786 radeon_suspend(rdev
);
1787 radeon_hpd_fini(rdev
);
1789 for (i
= 0; i
< RADEON_NUM_RINGS
; ++i
) {
1790 ring_sizes
[i
] = radeon_ring_backup(rdev
, &rdev
->ring
[i
],
1792 if (ring_sizes
[i
]) {
1794 dev_info(rdev
->dev
, "Saved %d dwords of commands "
1795 "on ring %d.\n", ring_sizes
[i
], i
);
1799 r
= radeon_asic_reset(rdev
);
1801 dev_info(rdev
->dev
, "GPU reset succeeded, trying to resume\n");
1802 radeon_resume(rdev
);
1805 radeon_restore_bios_scratch_regs(rdev
);
1807 for (i
= 0; i
< RADEON_NUM_RINGS
; ++i
) {
1808 if (!r
&& ring_data
[i
]) {
1809 radeon_ring_restore(rdev
, &rdev
->ring
[i
],
1810 ring_sizes
[i
], ring_data
[i
]);
1812 radeon_fence_driver_force_completion(rdev
, i
);
1813 kfree(ring_data
[i
]);
1817 if ((rdev
->pm
.pm_method
== PM_METHOD_DPM
) && rdev
->pm
.dpm_enabled
) {
1818 /* do dpm late init */
1819 r
= radeon_pm_late_init(rdev
);
1821 rdev
->pm
.dpm_enabled
= false;
1822 DRM_ERROR("radeon_pm_late_init failed, disabling dpm\n");
1825 /* resume old pm late */
1826 radeon_pm_resume(rdev
);
1829 /* init dig PHYs, disp eng pll */
1830 if (rdev
->is_atom_bios
) {
1831 radeon_atom_encoder_init(rdev
);
1832 radeon_atom_disp_eng_pll_init(rdev
);
1833 /* turn on the BL */
1834 if (rdev
->mode_info
.bl_encoder
) {
1835 u8 bl_level
= radeon_get_backlight_level(rdev
,
1836 rdev
->mode_info
.bl_encoder
);
1837 radeon_set_backlight_level(rdev
, rdev
->mode_info
.bl_encoder
,
1841 /* reset hpd state */
1842 radeon_hpd_init(rdev
);
1844 ttm_bo_unlock_delayed_workqueue(&rdev
->mman
.bdev
, resched
);
1846 rdev
->in_reset
= true;
1847 rdev
->needs_reset
= false;
1849 downgrade_write(&rdev
->exclusive_lock
);
1851 drm_helper_resume_force_mode(rdev
->ddev
);
1853 /* set the power state here in case we are a PX system or headless */
1854 if ((rdev
->pm
.pm_method
== PM_METHOD_DPM
) && rdev
->pm
.dpm_enabled
)
1855 radeon_pm_compute_clocks(rdev
);
1858 r
= radeon_ib_ring_tests(rdev
);
1862 /* bad news, how to tell it to userspace ? */
1863 dev_info(rdev
->dev
, "GPU reset failed\n");
1866 rdev
->needs_reset
= r
== -EAGAIN
;
1867 rdev
->in_reset
= false;
1869 up_read(&rdev
->exclusive_lock
);
1877 int radeon_debugfs_add_files(struct radeon_device
*rdev
,
1878 struct drm_info_list
*files
,
1883 for (i
= 0; i
< rdev
->debugfs_count
; i
++) {
1884 if (rdev
->debugfs
[i
].files
== files
) {
1885 /* Already registered */
1890 i
= rdev
->debugfs_count
+ 1;
1891 if (i
> RADEON_DEBUGFS_MAX_COMPONENTS
) {
1892 DRM_ERROR("Reached maximum number of debugfs components.\n");
1893 DRM_ERROR("Report so we increase "
1894 "RADEON_DEBUGFS_MAX_COMPONENTS.\n");
1897 rdev
->debugfs
[rdev
->debugfs_count
].files
= files
;
1898 rdev
->debugfs
[rdev
->debugfs_count
].num_files
= nfiles
;
1899 rdev
->debugfs_count
= i
;
1900 #if defined(CONFIG_DEBUG_FS)
1901 drm_debugfs_create_files(files
, nfiles
,
1902 rdev
->ddev
->control
->debugfs_root
,
1903 rdev
->ddev
->control
);
1904 drm_debugfs_create_files(files
, nfiles
,
1905 rdev
->ddev
->primary
->debugfs_root
,
1906 rdev
->ddev
->primary
);
1911 static void radeon_debugfs_remove_files(struct radeon_device
*rdev
)
1913 #if defined(CONFIG_DEBUG_FS)
1916 for (i
= 0; i
< rdev
->debugfs_count
; i
++) {
1917 drm_debugfs_remove_files(rdev
->debugfs
[i
].files
,
1918 rdev
->debugfs
[i
].num_files
,
1919 rdev
->ddev
->control
);
1920 drm_debugfs_remove_files(rdev
->debugfs
[i
].files
,
1921 rdev
->debugfs
[i
].num_files
,
1922 rdev
->ddev
->primary
);
1927 #if defined(CONFIG_DEBUG_FS)
1928 int radeon_debugfs_init(struct drm_minor
*minor
)
1933 void radeon_debugfs_cleanup(struct drm_minor
*minor
)