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>
30 #include <drm/drm_crtc_helper.h>
31 #include <drm/radeon_drm.h>
32 #include "radeon_reg.h"
34 #include "radeon_asic.h"
38 * GPU scratch registers helpers function.
40 static void radeon_scratch_init(struct radeon_device
*rdev
)
44 /* FIXME: check this out */
45 if (rdev
->family
< CHIP_R300
) {
46 rdev
->scratch
.num_reg
= 5;
48 rdev
->scratch
.num_reg
= 7;
50 for (i
= 0; i
< rdev
->scratch
.num_reg
; i
++) {
51 rdev
->scratch
.free
[i
] = true;
52 rdev
->scratch
.reg
[i
] = RADEON_SCRATCH_REG0
+ (i
* 4);
56 int radeon_scratch_get(struct radeon_device
*rdev
, uint32_t *reg
)
60 for (i
= 0; i
< rdev
->scratch
.num_reg
; i
++) {
61 if (rdev
->scratch
.free
[i
]) {
62 rdev
->scratch
.free
[i
] = false;
63 *reg
= rdev
->scratch
.reg
[i
];
70 void radeon_scratch_free(struct radeon_device
*rdev
, uint32_t reg
)
74 for (i
= 0; i
< rdev
->scratch
.num_reg
; i
++) {
75 if (rdev
->scratch
.reg
[i
] == reg
) {
76 rdev
->scratch
.free
[i
] = true;
85 int radeon_mc_setup(struct radeon_device
*rdev
)
89 /* Some chips have an "issue" with the memory controller, the
90 * location must be aligned to the size. We just align it down,
91 * too bad if we walk over the top of system memory, we don't
92 * use DMA without a remapped anyway.
93 * Affected chips are rv280, all r3xx, and all r4xx, but not IGP
95 /* FGLRX seems to setup like this, VRAM a 0, then GART.
98 * Note: from R6xx the address space is 40bits but here we only
99 * use 32bits (still have to see a card which would exhaust 4G
102 if (rdev
->mc
.vram_location
!= 0xFFFFFFFFUL
) {
103 /* vram location was already setup try to put gtt after
105 tmp
= rdev
->mc
.vram_location
+ rdev
->mc
.vram_size
;
106 tmp
= (tmp
+ rdev
->mc
.gtt_size
- 1) & ~(rdev
->mc
.gtt_size
- 1);
107 if ((0xFFFFFFFFUL
- tmp
) >= rdev
->mc
.gtt_size
) {
108 rdev
->mc
.gtt_location
= tmp
;
110 if (rdev
->mc
.gtt_size
>= rdev
->mc
.vram_location
) {
111 printk(KERN_ERR
"[drm] GTT too big to fit "
112 "before or after vram location.\n");
115 rdev
->mc
.gtt_location
= 0;
117 } else if (rdev
->mc
.gtt_location
!= 0xFFFFFFFFUL
) {
118 /* gtt location was already setup try to put vram before
120 if (rdev
->mc
.vram_size
< rdev
->mc
.gtt_location
) {
121 rdev
->mc
.vram_location
= 0;
123 tmp
= rdev
->mc
.gtt_location
+ rdev
->mc
.gtt_size
;
124 tmp
+= (rdev
->mc
.vram_size
- 1);
125 tmp
&= ~(rdev
->mc
.vram_size
- 1);
126 if ((0xFFFFFFFFUL
- tmp
) >= rdev
->mc
.vram_size
) {
127 rdev
->mc
.vram_location
= tmp
;
129 printk(KERN_ERR
"[drm] vram too big to fit "
130 "before or after GTT location.\n");
135 rdev
->mc
.vram_location
= 0;
136 rdev
->mc
.gtt_location
= rdev
->mc
.vram_size
;
138 DRM_INFO("radeon: VRAM %uM\n", rdev
->mc
.vram_size
>> 20);
139 DRM_INFO("radeon: VRAM from 0x%08X to 0x%08X\n",
140 rdev
->mc
.vram_location
,
141 rdev
->mc
.vram_location
+ rdev
->mc
.vram_size
- 1);
142 DRM_INFO("radeon: GTT %uM\n", rdev
->mc
.gtt_size
>> 20);
143 DRM_INFO("radeon: GTT from 0x%08X to 0x%08X\n",
144 rdev
->mc
.gtt_location
,
145 rdev
->mc
.gtt_location
+ rdev
->mc
.gtt_size
- 1);
151 * GPU helpers function.
153 static bool radeon_card_posted(struct radeon_device
*rdev
)
157 /* first check CRTCs */
158 if (ASIC_IS_AVIVO(rdev
)) {
159 reg
= RREG32(AVIVO_D1CRTC_CONTROL
) |
160 RREG32(AVIVO_D2CRTC_CONTROL
);
161 if (reg
& AVIVO_CRTC_EN
) {
165 reg
= RREG32(RADEON_CRTC_GEN_CNTL
) |
166 RREG32(RADEON_CRTC2_GEN_CNTL
);
167 if (reg
& RADEON_CRTC_EN
) {
172 /* then check MEM_SIZE, in case the crtcs are off */
173 if (rdev
->family
>= CHIP_R600
)
174 reg
= RREG32(R600_CONFIG_MEMSIZE
);
176 reg
= RREG32(RADEON_CONFIG_MEMSIZE
);
187 * Registers accessors functions.
189 uint32_t radeon_invalid_rreg(struct radeon_device
*rdev
, uint32_t reg
)
191 DRM_ERROR("Invalid callback to read register 0x%04X\n", reg
);
196 void radeon_invalid_wreg(struct radeon_device
*rdev
, uint32_t reg
, uint32_t v
)
198 DRM_ERROR("Invalid callback to write register 0x%04X with 0x%08X\n",
203 void radeon_register_accessor_init(struct radeon_device
*rdev
)
205 rdev
->mm_rreg
= &r100_mm_rreg
;
206 rdev
->mm_wreg
= &r100_mm_wreg
;
207 rdev
->mc_rreg
= &radeon_invalid_rreg
;
208 rdev
->mc_wreg
= &radeon_invalid_wreg
;
209 rdev
->pll_rreg
= &radeon_invalid_rreg
;
210 rdev
->pll_wreg
= &radeon_invalid_wreg
;
211 rdev
->pcie_rreg
= &radeon_invalid_rreg
;
212 rdev
->pcie_wreg
= &radeon_invalid_wreg
;
213 rdev
->pciep_rreg
= &radeon_invalid_rreg
;
214 rdev
->pciep_wreg
= &radeon_invalid_wreg
;
216 /* Don't change order as we are overridding accessor. */
217 if (rdev
->family
< CHIP_RV515
) {
218 rdev
->pcie_rreg
= &rv370_pcie_rreg
;
219 rdev
->pcie_wreg
= &rv370_pcie_wreg
;
221 if (rdev
->family
>= CHIP_RV515
) {
222 rdev
->pcie_rreg
= &rv515_pcie_rreg
;
223 rdev
->pcie_wreg
= &rv515_pcie_wreg
;
225 /* FIXME: not sure here */
226 if (rdev
->family
<= CHIP_R580
) {
227 rdev
->pll_rreg
= &r100_pll_rreg
;
228 rdev
->pll_wreg
= &r100_pll_wreg
;
230 if (rdev
->family
>= CHIP_RV515
) {
231 rdev
->mc_rreg
= &rv515_mc_rreg
;
232 rdev
->mc_wreg
= &rv515_mc_wreg
;
234 if (rdev
->family
== CHIP_RS400
|| rdev
->family
== CHIP_RS480
) {
235 rdev
->mc_rreg
= &rs400_mc_rreg
;
236 rdev
->mc_wreg
= &rs400_mc_wreg
;
238 if (rdev
->family
== CHIP_RS690
|| rdev
->family
== CHIP_RS740
) {
239 rdev
->mc_rreg
= &rs690_mc_rreg
;
240 rdev
->mc_wreg
= &rs690_mc_wreg
;
242 if (rdev
->family
== CHIP_RS600
) {
243 rdev
->mc_rreg
= &rs600_mc_rreg
;
244 rdev
->mc_wreg
= &rs600_mc_wreg
;
246 if (rdev
->family
>= CHIP_R600
) {
247 rdev
->pciep_rreg
= &r600_pciep_rreg
;
248 rdev
->pciep_wreg
= &r600_pciep_wreg
;
256 int radeon_asic_init(struct radeon_device
*rdev
)
258 radeon_register_accessor_init(rdev
);
259 switch (rdev
->family
) {
269 rdev
->asic
= &r100_asic
;
275 rdev
->asic
= &r300_asic
;
280 rdev
->asic
= &r420_asic
;
284 rdev
->asic
= &rs400_asic
;
287 rdev
->asic
= &rs600_asic
;
291 rdev
->asic
= &rs690_asic
;
294 rdev
->asic
= &rv515_asic
;
301 rdev
->asic
= &r520_asic
;
314 /* FIXME: not supported yet */
322 * Wrapper around modesetting bits.
324 int radeon_clocks_init(struct radeon_device
*rdev
)
328 radeon_get_clock_info(rdev
->ddev
);
329 r
= radeon_static_clocks_init(rdev
->ddev
);
333 DRM_INFO("Clocks initialized !\n");
337 void radeon_clocks_fini(struct radeon_device
*rdev
)
341 /* ATOM accessor methods */
342 static uint32_t cail_pll_read(struct card_info
*info
, uint32_t reg
)
344 struct radeon_device
*rdev
= info
->dev
->dev_private
;
347 r
= rdev
->pll_rreg(rdev
, reg
);
351 static void cail_pll_write(struct card_info
*info
, uint32_t reg
, uint32_t val
)
353 struct radeon_device
*rdev
= info
->dev
->dev_private
;
355 rdev
->pll_wreg(rdev
, reg
, val
);
358 static uint32_t cail_mc_read(struct card_info
*info
, uint32_t reg
)
360 struct radeon_device
*rdev
= info
->dev
->dev_private
;
363 r
= rdev
->mc_rreg(rdev
, reg
);
367 static void cail_mc_write(struct card_info
*info
, uint32_t reg
, uint32_t val
)
369 struct radeon_device
*rdev
= info
->dev
->dev_private
;
371 rdev
->mc_wreg(rdev
, reg
, val
);
374 static void cail_reg_write(struct card_info
*info
, uint32_t reg
, uint32_t val
)
376 struct radeon_device
*rdev
= info
->dev
->dev_private
;
381 static uint32_t cail_reg_read(struct card_info
*info
, uint32_t reg
)
383 struct radeon_device
*rdev
= info
->dev
->dev_private
;
390 static struct card_info atom_card_info
= {
392 .reg_read
= cail_reg_read
,
393 .reg_write
= cail_reg_write
,
394 .mc_read
= cail_mc_read
,
395 .mc_write
= cail_mc_write
,
396 .pll_read
= cail_pll_read
,
397 .pll_write
= cail_pll_write
,
400 int radeon_atombios_init(struct radeon_device
*rdev
)
402 atom_card_info
.dev
= rdev
->ddev
;
403 rdev
->mode_info
.atom_context
= atom_parse(&atom_card_info
, rdev
->bios
);
404 radeon_atom_initialize_bios_scratch_regs(rdev
->ddev
);
408 void radeon_atombios_fini(struct radeon_device
*rdev
)
410 kfree(rdev
->mode_info
.atom_context
);
413 int radeon_combios_init(struct radeon_device
*rdev
)
415 radeon_combios_initialize_bios_scratch_regs(rdev
->ddev
);
419 void radeon_combios_fini(struct radeon_device
*rdev
)
423 int radeon_modeset_init(struct radeon_device
*rdev
);
424 void radeon_modeset_fini(struct radeon_device
*rdev
);
430 int radeon_device_init(struct radeon_device
*rdev
,
431 struct drm_device
*ddev
,
432 struct pci_dev
*pdev
,
437 DRM_INFO("radeon: Initializing kernel modesetting.\n");
438 rdev
->shutdown
= false;
442 rdev
->family
= flags
& RADEON_FAMILY_MASK
;
443 rdev
->is_atom_bios
= false;
444 rdev
->usec_timeout
= RADEON_MAX_USEC_TIMEOUT
;
445 rdev
->mc
.gtt_size
= radeon_gart_size
* 1024 * 1024;
446 rdev
->gpu_lockup
= false;
447 /* mutex initialization are all done here so we
448 * can recall function without having locking issues */
449 mutex_init(&rdev
->cs_mutex
);
450 mutex_init(&rdev
->ib_pool
.mutex
);
451 mutex_init(&rdev
->cp
.mutex
);
452 rwlock_init(&rdev
->fence_drv
.lock
);
454 if (radeon_agpmode
== -1) {
455 rdev
->flags
&= ~RADEON_IS_AGP
;
456 if (rdev
->family
> CHIP_RV515
||
457 rdev
->family
== CHIP_RV380
||
458 rdev
->family
== CHIP_RV410
||
459 rdev
->family
== CHIP_R423
) {
460 DRM_INFO("Forcing AGP to PCIE mode\n");
461 rdev
->flags
|= RADEON_IS_PCIE
;
463 DRM_INFO("Forcing AGP to PCI mode\n");
464 rdev
->flags
|= RADEON_IS_PCI
;
468 /* Set asic functions */
469 r
= radeon_asic_init(rdev
);
474 /* Report DMA addressing limitation */
475 r
= pci_set_dma_mask(rdev
->pdev
, DMA_BIT_MASK(32));
477 printk(KERN_WARNING
"radeon: No suitable DMA available.\n");
480 /* Registers mapping */
481 /* TODO: block userspace mapping of io register */
482 rdev
->rmmio_base
= drm_get_resource_start(rdev
->ddev
, 2);
483 rdev
->rmmio_size
= drm_get_resource_len(rdev
->ddev
, 2);
484 rdev
->rmmio
= ioremap(rdev
->rmmio_base
, rdev
->rmmio_size
);
485 if (rdev
->rmmio
== NULL
) {
488 DRM_INFO("register mmio base: 0x%08X\n", (uint32_t)rdev
->rmmio_base
);
489 DRM_INFO("register mmio size: %u\n", (unsigned)rdev
->rmmio_size
);
491 /* Setup errata flags */
493 /* Initialize scratch registers */
494 radeon_scratch_init(rdev
);
496 /* TODO: disable VGA need to use VGA request */
498 if (!radeon_get_bios(rdev
)) {
499 if (ASIC_IS_AVIVO(rdev
))
502 if (rdev
->is_atom_bios
) {
503 r
= radeon_atombios_init(rdev
);
508 r
= radeon_combios_init(rdev
);
513 /* Reset gpu before posting otherwise ATOM will enter infinite loop */
514 if (radeon_gpu_reset(rdev
)) {
515 /* FIXME: what do we want to do here ? */
517 /* check if cards are posted or not */
518 if (!radeon_card_posted(rdev
) && rdev
->bios
) {
519 DRM_INFO("GPU not posted. posting now...\n");
520 if (rdev
->is_atom_bios
) {
521 atom_asic_init(rdev
->mode_info
.atom_context
);
523 radeon_combios_asic_init(rdev
->ddev
);
526 /* Get vram informations */
527 radeon_vram_info(rdev
);
528 /* Device is severly broken if aper size > vram size.
529 * for RN50/M6/M7 - Novell bug 204882 ?
531 if (rdev
->mc
.vram_size
< rdev
->mc
.aper_size
) {
532 rdev
->mc
.aper_size
= rdev
->mc
.vram_size
;
534 /* Add an MTRR for the VRAM */
535 rdev
->mc
.vram_mtrr
= mtrr_add(rdev
->mc
.aper_base
, rdev
->mc
.aper_size
,
536 MTRR_TYPE_WRCOMB
, 1);
537 DRM_INFO("Detected VRAM RAM=%uM, BAR=%uM\n",
538 rdev
->mc
.vram_size
>> 20,
539 (unsigned)rdev
->mc
.aper_size
>> 20);
540 DRM_INFO("RAM width %dbits %cDR\n",
541 rdev
->mc
.vram_width
, rdev
->mc
.vram_is_ddr
? 'D' : 'S');
542 /* Initialize clocks */
543 r
= radeon_clocks_init(rdev
);
547 /* Initialize memory controller (also test AGP) */
548 r
= radeon_mc_init(rdev
);
553 r
= radeon_fence_driver_init(rdev
);
557 r
= radeon_irq_kms_init(rdev
);
562 r
= radeon_object_init(rdev
);
566 /* Initialize GART (initialize after TTM so we can allocate
567 * memory through TTM but finalize after TTM) */
568 r
= radeon_gart_enable(rdev
);
570 r
= radeon_gem_init(rdev
);
575 r
= radeon_cp_init(rdev
, 1024 * 1024);
578 r
= radeon_wb_init(rdev
);
580 DRM_ERROR("radeon: failled initializing WB (%d).\n", r
);
585 r
= radeon_ib_pool_init(rdev
);
587 DRM_ERROR("radeon: failled initializing IB pool (%d).\n", r
);
592 r
= radeon_ib_test(rdev
);
594 DRM_ERROR("radeon: failled testing IB (%d).\n", r
);
599 r
= radeon_modeset_init(rdev
);
603 if (rdev
->fbdev_rfb
&& rdev
->fbdev_rfb
->obj
) {
604 rdev
->fbdev_robj
= rdev
->fbdev_rfb
->obj
->driver_private
;
607 DRM_INFO("radeon: kernel modesetting successfully initialized.\n");
609 if (radeon_benchmarking
) {
610 radeon_benchmark(rdev
);
615 void radeon_device_fini(struct radeon_device
*rdev
)
617 if (rdev
== NULL
|| rdev
->rmmio
== NULL
) {
620 DRM_INFO("radeon: finishing device.\n");
621 rdev
->shutdown
= true;
622 /* Order matter so becarefull if you rearrange anythings */
623 radeon_modeset_fini(rdev
);
624 radeon_ib_pool_fini(rdev
);
625 radeon_cp_fini(rdev
);
626 radeon_wb_fini(rdev
);
627 radeon_gem_fini(rdev
);
628 radeon_object_fini(rdev
);
629 /* mc_fini must be after object_fini */
630 radeon_mc_fini(rdev
);
632 radeon_agp_fini(rdev
);
634 radeon_irq_kms_fini(rdev
);
635 radeon_fence_driver_fini(rdev
);
636 radeon_clocks_fini(rdev
);
637 if (rdev
->is_atom_bios
) {
638 radeon_atombios_fini(rdev
);
640 radeon_combios_fini(rdev
);
644 iounmap(rdev
->rmmio
);
652 int radeon_suspend_kms(struct drm_device
*dev
, pm_message_t state
)
654 struct radeon_device
*rdev
= dev
->dev_private
;
655 struct drm_crtc
*crtc
;
657 if (dev
== NULL
|| rdev
== NULL
) {
660 if (state
.event
== PM_EVENT_PRETHAW
) {
663 /* unpin the front buffers */
664 list_for_each_entry(crtc
, &dev
->mode_config
.crtc_list
, head
) {
665 struct radeon_framebuffer
*rfb
= to_radeon_framebuffer(crtc
->fb
);
666 struct radeon_object
*robj
;
668 if (rfb
== NULL
|| rfb
->obj
== NULL
) {
671 robj
= rfb
->obj
->driver_private
;
672 if (robj
!= rdev
->fbdev_robj
) {
673 radeon_object_unpin(robj
);
676 /* evict vram memory */
677 radeon_object_evict_vram(rdev
);
678 /* wait for gpu to finish processing current batch */
679 radeon_fence_wait_last(rdev
);
681 radeon_cp_disable(rdev
);
682 radeon_gart_disable(rdev
);
684 /* evict remaining vram memory */
685 radeon_object_evict_vram(rdev
);
687 rdev
->irq
.sw_int
= false;
688 radeon_irq_set(rdev
);
690 pci_save_state(dev
->pdev
);
691 if (state
.event
== PM_EVENT_SUSPEND
) {
692 /* Shut down the device */
693 pci_disable_device(dev
->pdev
);
694 pci_set_power_state(dev
->pdev
, PCI_D3hot
);
696 acquire_console_sem();
697 fb_set_suspend(rdev
->fbdev_info
, 1);
698 release_console_sem();
702 int radeon_resume_kms(struct drm_device
*dev
)
704 struct radeon_device
*rdev
= dev
->dev_private
;
707 acquire_console_sem();
708 pci_set_power_state(dev
->pdev
, PCI_D0
);
709 pci_restore_state(dev
->pdev
);
710 if (pci_enable_device(dev
->pdev
)) {
711 release_console_sem();
714 pci_set_master(dev
->pdev
);
715 /* Reset gpu before posting otherwise ATOM will enter infinite loop */
716 if (radeon_gpu_reset(rdev
)) {
717 /* FIXME: what do we want to do here ? */
720 if (rdev
->is_atom_bios
) {
721 atom_asic_init(rdev
->mode_info
.atom_context
);
723 radeon_combios_asic_init(rdev
->ddev
);
725 /* Initialize clocks */
726 r
= radeon_clocks_init(rdev
);
728 release_console_sem();
732 rdev
->irq
.sw_int
= true;
733 radeon_irq_set(rdev
);
734 /* Initialize GPU Memory Controller */
735 r
= radeon_mc_init(rdev
);
739 r
= radeon_gart_enable(rdev
);
743 r
= radeon_cp_init(rdev
, rdev
->cp
.ring_size
);
748 fb_set_suspend(rdev
->fbdev_info
, 0);
749 release_console_sem();
751 /* blat the mode back in */
752 drm_helper_resume_force_mode(dev
);
760 struct radeon_debugfs
{
761 struct drm_info_list
*files
;
764 static struct radeon_debugfs _radeon_debugfs
[RADEON_DEBUGFS_MAX_NUM_FILES
];
765 static unsigned _radeon_debugfs_count
= 0;
767 int radeon_debugfs_add_files(struct radeon_device
*rdev
,
768 struct drm_info_list
*files
,
773 for (i
= 0; i
< _radeon_debugfs_count
; i
++) {
774 if (_radeon_debugfs
[i
].files
== files
) {
775 /* Already registered */
779 if ((_radeon_debugfs_count
+ nfiles
) > RADEON_DEBUGFS_MAX_NUM_FILES
) {
780 DRM_ERROR("Reached maximum number of debugfs files.\n");
781 DRM_ERROR("Report so we increase RADEON_DEBUGFS_MAX_NUM_FILES.\n");
784 _radeon_debugfs
[_radeon_debugfs_count
].files
= files
;
785 _radeon_debugfs
[_radeon_debugfs_count
].num_files
= nfiles
;
786 _radeon_debugfs_count
++;
787 #if defined(CONFIG_DEBUG_FS)
788 drm_debugfs_create_files(files
, nfiles
,
789 rdev
->ddev
->control
->debugfs_root
,
790 rdev
->ddev
->control
);
791 drm_debugfs_create_files(files
, nfiles
,
792 rdev
->ddev
->primary
->debugfs_root
,
793 rdev
->ddev
->primary
);
798 #if defined(CONFIG_DEBUG_FS)
799 int radeon_debugfs_init(struct drm_minor
*minor
)
804 void radeon_debugfs_cleanup(struct drm_minor
*minor
)
808 for (i
= 0; i
< _radeon_debugfs_count
; i
++) {
809 drm_debugfs_remove_files(_radeon_debugfs
[i
].files
,
810 _radeon_debugfs
[i
].num_files
, minor
);