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 <linux/vgaarb.h>
33 #include "radeon_reg.h"
35 #include "radeon_asic.h"
39 * Clear GPU surface registers.
41 void radeon_surface_init(struct radeon_device *rdev)
43 /* FIXME: check this out */
44 if (rdev->family < CHIP_R600) {
47 for (i = 0; i < 8; i++) {
48 WREG32(RADEON_SURFACE0_INFO +
49 i * (RADEON_SURFACE1_INFO - RADEON_SURFACE0_INFO),
53 WREG32(RADEON_SURFACE_CNTL, 0);
58 * GPU scratch registers helpers function.
60 void radeon_scratch_init(struct radeon_device *rdev)
64 /* FIXME: check this out */
65 if (rdev->family < CHIP_R300) {
66 rdev->scratch.num_reg = 5;
68 rdev->scratch.num_reg = 7;
70 for (i = 0; i < rdev->scratch.num_reg; i++) {
71 rdev->scratch.free[i] = true;
72 rdev->scratch.reg[i] = RADEON_SCRATCH_REG0 + (i * 4);
76 int radeon_scratch_get(struct radeon_device *rdev, uint32_t *reg)
80 for (i = 0; i < rdev->scratch.num_reg; i++) {
81 if (rdev->scratch.free[i]) {
82 rdev->scratch.free[i] = false;
83 *reg = rdev->scratch.reg[i];
90 void radeon_scratch_free(struct radeon_device *rdev, uint32_t reg)
94 for (i = 0; i < rdev->scratch.num_reg; i++) {
95 if (rdev->scratch.reg[i] == reg) {
96 rdev->scratch.free[i] = true;
103 * MC common functions
105 int radeon_mc_setup(struct radeon_device *rdev)
109 /* Some chips have an "issue" with the memory controller, the
110 * location must be aligned to the size. We just align it down,
111 * too bad if we walk over the top of system memory, we don't
112 * use DMA without a remapped anyway.
113 * Affected chips are rv280, all r3xx, and all r4xx, but not IGP
115 /* FGLRX seems to setup like this, VRAM a 0, then GART.
118 * Note: from R6xx the address space is 40bits but here we only
119 * use 32bits (still have to see a card which would exhaust 4G
122 if (rdev->mc.vram_location != 0xFFFFFFFFUL) {
123 /* vram location was already setup try to put gtt after
125 tmp = rdev->mc.vram_location + rdev->mc.mc_vram_size;
126 tmp = (tmp + rdev->mc.gtt_size - 1) & ~(rdev->mc.gtt_size - 1);
127 if ((0xFFFFFFFFUL - tmp) >= rdev->mc.gtt_size) {
128 rdev->mc.gtt_location = tmp;
130 if (rdev->mc.gtt_size >= rdev->mc.vram_location) {
131 printk(KERN_ERR "[drm] GTT too big to fit "
132 "before or after vram location.\n");
135 rdev->mc.gtt_location = 0;
137 } else if (rdev->mc.gtt_location != 0xFFFFFFFFUL) {
138 /* gtt location was already setup try to put vram before
140 if (rdev->mc.mc_vram_size < rdev->mc.gtt_location) {
141 rdev->mc.vram_location = 0;
143 tmp = rdev->mc.gtt_location + rdev->mc.gtt_size;
144 tmp += (rdev->mc.mc_vram_size - 1);
145 tmp &= ~(rdev->mc.mc_vram_size - 1);
146 if ((0xFFFFFFFFUL - tmp) >= rdev->mc.mc_vram_size) {
147 rdev->mc.vram_location = tmp;
149 printk(KERN_ERR "[drm] vram too big to fit "
150 "before or after GTT location.\n");
155 rdev->mc.vram_location = 0;
156 tmp = rdev->mc.mc_vram_size;
157 tmp = (tmp + rdev->mc.gtt_size - 1) & ~(rdev->mc.gtt_size - 1);
158 rdev->mc.gtt_location = tmp;
160 rdev->mc.vram_start = rdev->mc.vram_location;
161 rdev->mc.vram_end = rdev->mc.vram_location + rdev->mc.mc_vram_size - 1;
162 rdev->mc.gtt_start = rdev->mc.gtt_location;
163 rdev->mc.gtt_end = rdev->mc.gtt_location + rdev->mc.gtt_size - 1;
164 DRM_INFO("radeon: VRAM %uM\n", (unsigned)(rdev->mc.mc_vram_size >> 20));
165 DRM_INFO("radeon: VRAM from 0x%08X to 0x%08X\n",
166 (unsigned)rdev->mc.vram_location,
167 (unsigned)(rdev->mc.vram_location + rdev->mc.mc_vram_size - 1));
168 DRM_INFO("radeon: GTT %uM\n", (unsigned)(rdev->mc.gtt_size >> 20));
169 DRM_INFO("radeon: GTT from 0x%08X to 0x%08X\n",
170 (unsigned)rdev->mc.gtt_location,
171 (unsigned)(rdev->mc.gtt_location + rdev->mc.gtt_size - 1));
177 * GPU helpers function.
179 bool radeon_card_posted(struct radeon_device *rdev)
183 /* first check CRTCs */
184 if (ASIC_IS_AVIVO(rdev)) {
185 reg = RREG32(AVIVO_D1CRTC_CONTROL) |
186 RREG32(AVIVO_D2CRTC_CONTROL);
187 if (reg & AVIVO_CRTC_EN) {
191 reg = RREG32(RADEON_CRTC_GEN_CNTL) |
192 RREG32(RADEON_CRTC2_GEN_CNTL);
193 if (reg & RADEON_CRTC_EN) {
198 /* then check MEM_SIZE, in case the crtcs are off */
199 if (rdev->family >= CHIP_R600)
200 reg = RREG32(R600_CONFIG_MEMSIZE);
202 reg = RREG32(RADEON_CONFIG_MEMSIZE);
211 bool radeon_boot_test_post_card(struct radeon_device *rdev)
213 if (radeon_card_posted(rdev))
217 DRM_INFO("GPU not posted. posting now...\n");
218 if (rdev->is_atom_bios)
219 atom_asic_init(rdev->mode_info.atom_context);
221 radeon_combios_asic_init(rdev->ddev);
224 dev_err(rdev->dev, "Card not posted and no BIOS - ignoring\n");
229 int radeon_dummy_page_init(struct radeon_device *rdev)
231 rdev->dummy_page.page = alloc_page(GFP_DMA32 | GFP_KERNEL | __GFP_ZERO);
232 if (rdev->dummy_page.page == NULL)
234 rdev->dummy_page.addr = pci_map_page(rdev->pdev, rdev->dummy_page.page,
235 0, PAGE_SIZE, PCI_DMA_BIDIRECTIONAL);
236 if (!rdev->dummy_page.addr) {
237 __free_page(rdev->dummy_page.page);
238 rdev->dummy_page.page = NULL;
244 void radeon_dummy_page_fini(struct radeon_device *rdev)
246 if (rdev->dummy_page.page == NULL)
248 pci_unmap_page(rdev->pdev, rdev->dummy_page.addr,
249 PAGE_SIZE, PCI_DMA_BIDIRECTIONAL);
250 __free_page(rdev->dummy_page.page);
251 rdev->dummy_page.page = NULL;
256 * Registers accessors functions.
258 uint32_t radeon_invalid_rreg(struct radeon_device *rdev, uint32_t reg)
260 DRM_ERROR("Invalid callback to read register 0x%04X\n", reg);
265 void radeon_invalid_wreg(struct radeon_device *rdev, uint32_t reg, uint32_t v)
267 DRM_ERROR("Invalid callback to write register 0x%04X with 0x%08X\n",
272 void radeon_register_accessor_init(struct radeon_device *rdev)
274 rdev->mc_rreg = &radeon_invalid_rreg;
275 rdev->mc_wreg = &radeon_invalid_wreg;
276 rdev->pll_rreg = &radeon_invalid_rreg;
277 rdev->pll_wreg = &radeon_invalid_wreg;
278 rdev->pciep_rreg = &radeon_invalid_rreg;
279 rdev->pciep_wreg = &radeon_invalid_wreg;
281 /* Don't change order as we are overridding accessor. */
282 if (rdev->family < CHIP_RV515) {
283 rdev->pcie_reg_mask = 0xff;
285 rdev->pcie_reg_mask = 0x7ff;
287 /* FIXME: not sure here */
288 if (rdev->family <= CHIP_R580) {
289 rdev->pll_rreg = &r100_pll_rreg;
290 rdev->pll_wreg = &r100_pll_wreg;
292 if (rdev->family >= CHIP_R420) {
293 rdev->mc_rreg = &r420_mc_rreg;
294 rdev->mc_wreg = &r420_mc_wreg;
296 if (rdev->family >= CHIP_RV515) {
297 rdev->mc_rreg = &rv515_mc_rreg;
298 rdev->mc_wreg = &rv515_mc_wreg;
300 if (rdev->family == CHIP_RS400 || rdev->family == CHIP_RS480) {
301 rdev->mc_rreg = &rs400_mc_rreg;
302 rdev->mc_wreg = &rs400_mc_wreg;
304 if (rdev->family == CHIP_RS690 || rdev->family == CHIP_RS740) {
305 rdev->mc_rreg = &rs690_mc_rreg;
306 rdev->mc_wreg = &rs690_mc_wreg;
308 if (rdev->family == CHIP_RS600) {
309 rdev->mc_rreg = &rs600_mc_rreg;
310 rdev->mc_wreg = &rs600_mc_wreg;
312 if (rdev->family >= CHIP_R600) {
313 rdev->pciep_rreg = &r600_pciep_rreg;
314 rdev->pciep_wreg = &r600_pciep_wreg;
322 int radeon_asic_init(struct radeon_device *rdev)
324 radeon_register_accessor_init(rdev);
325 switch (rdev->family) {
335 rdev->asic = &r100_asic;
341 rdev->asic = &r300_asic;
342 if (rdev->flags & RADEON_IS_PCIE) {
343 rdev->asic->gart_tlb_flush = &rv370_pcie_gart_tlb_flush;
344 rdev->asic->gart_set_page = &rv370_pcie_gart_set_page;
350 rdev->asic = &r420_asic;
354 rdev->asic = &rs400_asic;
357 rdev->asic = &rs600_asic;
361 rdev->asic = &rs690_asic;
364 rdev->asic = &rv515_asic;
371 rdev->asic = &r520_asic;
381 rdev->asic = &r600_asic;
387 rdev->asic = &rv770_asic;
390 /* FIXME: not supported yet */
398 * Wrapper around modesetting bits.
400 int radeon_clocks_init(struct radeon_device *rdev)
404 r = radeon_static_clocks_init(rdev->ddev);
408 DRM_INFO("Clocks initialized !\n");
412 void radeon_clocks_fini(struct radeon_device *rdev)
416 /* ATOM accessor methods */
417 static uint32_t cail_pll_read(struct card_info *info, uint32_t reg)
419 struct radeon_device *rdev = info->dev->dev_private;
422 r = rdev->pll_rreg(rdev, reg);
426 static void cail_pll_write(struct card_info *info, uint32_t reg, uint32_t val)
428 struct radeon_device *rdev = info->dev->dev_private;
430 rdev->pll_wreg(rdev, reg, val);
433 static uint32_t cail_mc_read(struct card_info *info, uint32_t reg)
435 struct radeon_device *rdev = info->dev->dev_private;
438 r = rdev->mc_rreg(rdev, reg);
442 static void cail_mc_write(struct card_info *info, uint32_t reg, uint32_t val)
444 struct radeon_device *rdev = info->dev->dev_private;
446 rdev->mc_wreg(rdev, reg, val);
449 static void cail_reg_write(struct card_info *info, uint32_t reg, uint32_t val)
451 struct radeon_device *rdev = info->dev->dev_private;
456 static uint32_t cail_reg_read(struct card_info *info, uint32_t reg)
458 struct radeon_device *rdev = info->dev->dev_private;
465 int radeon_atombios_init(struct radeon_device *rdev)
467 struct card_info *atom_card_info =
468 kzalloc(sizeof(struct card_info), GFP_KERNEL);
473 rdev->mode_info.atom_card_info = atom_card_info;
474 atom_card_info->dev = rdev->ddev;
475 atom_card_info->reg_read = cail_reg_read;
476 atom_card_info->reg_write = cail_reg_write;
477 atom_card_info->mc_read = cail_mc_read;
478 atom_card_info->mc_write = cail_mc_write;
479 atom_card_info->pll_read = cail_pll_read;
480 atom_card_info->pll_write = cail_pll_write;
482 rdev->mode_info.atom_context = atom_parse(atom_card_info, rdev->bios);
483 radeon_atom_initialize_bios_scratch_regs(rdev->ddev);
487 void radeon_atombios_fini(struct radeon_device *rdev)
489 kfree(rdev->mode_info.atom_context);
490 kfree(rdev->mode_info.atom_card_info);
493 int radeon_combios_init(struct radeon_device *rdev)
495 radeon_combios_initialize_bios_scratch_regs(rdev->ddev);
499 void radeon_combios_fini(struct radeon_device *rdev)
503 /* if we get transitioned to only one device, tak VGA back */
504 static unsigned int radeon_vga_set_decode(void *cookie, bool state)
506 struct radeon_device *rdev = cookie;
507 radeon_vga_set_state(rdev, state);
509 return VGA_RSRC_LEGACY_IO | VGA_RSRC_LEGACY_MEM |
510 VGA_RSRC_NORMAL_IO | VGA_RSRC_NORMAL_MEM;
512 return VGA_RSRC_NORMAL_IO | VGA_RSRC_NORMAL_MEM;
515 void radeon_agp_disable(struct radeon_device *rdev)
517 rdev->flags &= ~RADEON_IS_AGP;
518 if (rdev->family >= CHIP_R600) {
519 DRM_INFO("Forcing AGP to PCIE mode\n");
520 rdev->flags |= RADEON_IS_PCIE;
521 } else if (rdev->family >= CHIP_RV515 ||
522 rdev->family == CHIP_RV380 ||
523 rdev->family == CHIP_RV410 ||
524 rdev->family == CHIP_R423) {
525 DRM_INFO("Forcing AGP to PCIE mode\n");
526 rdev->flags |= RADEON_IS_PCIE;
527 rdev->asic->gart_tlb_flush = &rv370_pcie_gart_tlb_flush;
528 rdev->asic->gart_set_page = &rv370_pcie_gart_set_page;
530 DRM_INFO("Forcing AGP to PCI mode\n");
531 rdev->flags |= RADEON_IS_PCI;
532 rdev->asic->gart_tlb_flush = &r100_pci_gart_tlb_flush;
533 rdev->asic->gart_set_page = &r100_pci_gart_set_page;
540 int radeon_device_init(struct radeon_device *rdev,
541 struct drm_device *ddev,
542 struct pci_dev *pdev,
548 DRM_INFO("radeon: Initializing kernel modesetting.\n");
549 rdev->shutdown = false;
550 rdev->dev = &pdev->dev;
554 rdev->family = flags & RADEON_FAMILY_MASK;
555 rdev->is_atom_bios = false;
556 rdev->usec_timeout = RADEON_MAX_USEC_TIMEOUT;
557 rdev->mc.gtt_size = radeon_gart_size * 1024 * 1024;
558 rdev->gpu_lockup = false;
559 rdev->accel_working = false;
560 /* mutex initialization are all done here so we
561 * can recall function without having locking issues */
562 mutex_init(&rdev->cs_mutex);
563 mutex_init(&rdev->ib_pool.mutex);
564 mutex_init(&rdev->cp.mutex);
565 if (rdev->family >= CHIP_R600)
566 spin_lock_init(&rdev->ih.lock);
567 rwlock_init(&rdev->fence_drv.lock);
568 INIT_LIST_HEAD(&rdev->gem.objects);
570 /* Set asic functions */
571 r = radeon_asic_init(rdev);
576 if (rdev->flags & RADEON_IS_AGP && radeon_agpmode == -1) {
577 radeon_agp_disable(rdev);
580 /* set DMA mask + need_dma32 flags.
581 * PCIE - can handle 40-bits.
582 * IGP - can handle 40-bits (in theory)
583 * AGP - generally dma32 is safest
586 rdev->need_dma32 = false;
587 if (rdev->flags & RADEON_IS_AGP)
588 rdev->need_dma32 = true;
589 if (rdev->flags & RADEON_IS_PCI)
590 rdev->need_dma32 = true;
592 dma_bits = rdev->need_dma32 ? 32 : 40;
593 r = pci_set_dma_mask(rdev->pdev, DMA_BIT_MASK(dma_bits));
595 printk(KERN_WARNING "radeon: No suitable DMA available.\n");
598 /* Registers mapping */
599 /* TODO: block userspace mapping of io register */
600 rdev->rmmio_base = drm_get_resource_start(rdev->ddev, 2);
601 rdev->rmmio_size = drm_get_resource_len(rdev->ddev, 2);
602 rdev->rmmio = ioremap(rdev->rmmio_base, rdev->rmmio_size);
603 if (rdev->rmmio == NULL) {
606 DRM_INFO("register mmio base: 0x%08X\n", (uint32_t)rdev->rmmio_base);
607 DRM_INFO("register mmio size: %u\n", (unsigned)rdev->rmmio_size);
609 /* if we have > 1 VGA cards, then disable the radeon VGA resources */
610 /* this will fail for cards that aren't VGA class devices, just
612 vga_client_register(rdev->pdev, rdev, NULL, radeon_vga_set_decode);
614 r = radeon_init(rdev);
618 if (rdev->flags & RADEON_IS_AGP && !rdev->accel_working) {
619 /* Acceleration not working on AGP card try again
620 * with fallback to PCI or PCIE GART
622 radeon_gpu_reset(rdev);
624 radeon_agp_disable(rdev);
625 r = radeon_init(rdev);
629 if (radeon_testing) {
630 radeon_test_moves(rdev);
632 if (radeon_benchmarking) {
633 radeon_benchmark(rdev);
638 void radeon_device_fini(struct radeon_device *rdev)
640 DRM_INFO("radeon: finishing device.\n");
641 rdev->shutdown = true;
643 vga_client_register(rdev->pdev, NULL, NULL, NULL);
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_save_bios_scratch_regs(rdev);
683 radeon_suspend(rdev);
684 /* evict remaining vram memory */
685 radeon_object_evict_vram(rdev);
687 pci_save_state(dev->pdev);
688 if (state.event == PM_EVENT_SUSPEND) {
689 /* Shut down the device */
690 pci_disable_device(dev->pdev);
691 pci_set_power_state(dev->pdev, PCI_D3hot);
693 acquire_console_sem();
694 fb_set_suspend(rdev->fbdev_info, 1);
695 release_console_sem();
699 int radeon_resume_kms(struct drm_device *dev)
701 struct radeon_device *rdev = dev->dev_private;
703 acquire_console_sem();
704 pci_set_power_state(dev->pdev, PCI_D0);
705 pci_restore_state(dev->pdev);
706 if (pci_enable_device(dev->pdev)) {
707 release_console_sem();
710 pci_set_master(dev->pdev);
711 /* resume AGP if in use */
712 radeon_agp_resume(rdev);
714 radeon_restore_bios_scratch_regs(rdev);
715 fb_set_suspend(rdev->fbdev_info, 0);
716 release_console_sem();
718 /* blat the mode back in */
719 drm_helper_resume_force_mode(dev);
727 struct radeon_debugfs {
728 struct drm_info_list *files;
731 static struct radeon_debugfs _radeon_debugfs[RADEON_DEBUGFS_MAX_NUM_FILES];
732 static unsigned _radeon_debugfs_count = 0;
734 int radeon_debugfs_add_files(struct radeon_device *rdev,
735 struct drm_info_list *files,
740 for (i = 0; i < _radeon_debugfs_count; i++) {
741 if (_radeon_debugfs[i].files == files) {
742 /* Already registered */
746 if ((_radeon_debugfs_count + nfiles) > RADEON_DEBUGFS_MAX_NUM_FILES) {
747 DRM_ERROR("Reached maximum number of debugfs files.\n");
748 DRM_ERROR("Report so we increase RADEON_DEBUGFS_MAX_NUM_FILES.\n");
751 _radeon_debugfs[_radeon_debugfs_count].files = files;
752 _radeon_debugfs[_radeon_debugfs_count].num_files = nfiles;
753 _radeon_debugfs_count++;
754 #if defined(CONFIG_DEBUG_FS)
755 drm_debugfs_create_files(files, nfiles,
756 rdev->ddev->control->debugfs_root,
757 rdev->ddev->control);
758 drm_debugfs_create_files(files, nfiles,
759 rdev->ddev->primary->debugfs_root,
760 rdev->ddev->primary);
765 #if defined(CONFIG_DEBUG_FS)
766 int radeon_debugfs_init(struct drm_minor *minor)
771 void radeon_debugfs_cleanup(struct drm_minor *minor)
775 for (i = 0; i < _radeon_debugfs_count; i++) {
776 drm_debugfs_remove_files(_radeon_debugfs[i].files,
777 _radeon_debugfs[i].num_files, minor);