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] = {
105 #if defined(CONFIG_VGA_SWITCHEROO)
106 bool radeon_is_px(void);
108 static inline bool radeon_is_px(void) { return false; }
112 * radeon_program_register_sequence - program an array of registers.
114 * @rdev: radeon_device pointer
115 * @registers: pointer to the register array
116 * @array_size: size of the register array
118 * Programs an array or registers with and and or masks.
119 * This is a helper for setting golden registers.
121 void radeon_program_register_sequence(struct radeon_device *rdev,
122 const u32 *registers,
123 const u32 array_size)
125 u32 tmp, reg, and_mask, or_mask;
131 for (i = 0; i < array_size; i +=3) {
132 reg = registers[i + 0];
133 and_mask = registers[i + 1];
134 or_mask = registers[i + 2];
136 if (and_mask == 0xffffffff) {
148 * radeon_surface_init - Clear GPU surface registers.
150 * @rdev: radeon_device pointer
152 * Clear GPU surface registers (r1xx-r5xx).
154 void radeon_surface_init(struct radeon_device *rdev)
156 /* FIXME: check this out */
157 if (rdev->family < CHIP_R600) {
160 for (i = 0; i < RADEON_GEM_MAX_SURFACES; i++) {
161 if (rdev->surface_regs[i].bo)
162 radeon_bo_get_surface_reg(rdev->surface_regs[i].bo);
164 radeon_clear_surface_reg(rdev, i);
166 /* enable surfaces */
167 WREG32(RADEON_SURFACE_CNTL, 0);
172 * GPU scratch registers helpers function.
175 * radeon_scratch_init - Init scratch register driver information.
177 * @rdev: radeon_device pointer
179 * Init CP scratch register driver information (r1xx-r5xx)
181 void radeon_scratch_init(struct radeon_device *rdev)
185 /* FIXME: check this out */
186 if (rdev->family < CHIP_R300) {
187 rdev->scratch.num_reg = 5;
189 rdev->scratch.num_reg = 7;
191 rdev->scratch.reg_base = RADEON_SCRATCH_REG0;
192 for (i = 0; i < rdev->scratch.num_reg; i++) {
193 rdev->scratch.free[i] = true;
194 rdev->scratch.reg[i] = rdev->scratch.reg_base + (i * 4);
199 * radeon_scratch_get - Allocate a scratch register
201 * @rdev: radeon_device pointer
202 * @reg: scratch register mmio offset
204 * Allocate a CP scratch register for use by the driver (all asics).
205 * Returns 0 on success or -EINVAL on failure.
207 int radeon_scratch_get(struct radeon_device *rdev, uint32_t *reg)
211 for (i = 0; i < rdev->scratch.num_reg; i++) {
212 if (rdev->scratch.free[i]) {
213 rdev->scratch.free[i] = false;
214 *reg = rdev->scratch.reg[i];
222 * radeon_scratch_free - Free a scratch register
224 * @rdev: radeon_device pointer
225 * @reg: scratch register mmio offset
227 * Free a CP scratch register allocated for use by the driver (all asics)
229 void radeon_scratch_free(struct radeon_device *rdev, uint32_t reg)
233 for (i = 0; i < rdev->scratch.num_reg; i++) {
234 if (rdev->scratch.reg[i] == reg) {
235 rdev->scratch.free[i] = true;
242 * GPU doorbell aperture helpers function.
245 * radeon_doorbell_init - Init doorbell driver information.
247 * @rdev: radeon_device pointer
249 * Init doorbell driver information (CIK)
250 * Returns 0 on success, error on failure.
252 int radeon_doorbell_init(struct radeon_device *rdev)
256 /* doorbell bar mapping */
257 rdev->doorbell.base = pci_resource_start(rdev->pdev, 2);
258 rdev->doorbell.size = pci_resource_len(rdev->pdev, 2);
260 /* limit to 4 MB for now */
261 if (rdev->doorbell.size > (4 * 1024 * 1024))
262 rdev->doorbell.size = 4 * 1024 * 1024;
264 rdev->doorbell.ptr = ioremap(rdev->doorbell.base, rdev->doorbell.size);
265 if (rdev->doorbell.ptr == NULL) {
268 DRM_INFO("doorbell mmio base: 0x%08X\n", (uint32_t)rdev->doorbell.base);
269 DRM_INFO("doorbell mmio size: %u\n", (unsigned)rdev->doorbell.size);
271 rdev->doorbell.num_pages = rdev->doorbell.size / PAGE_SIZE;
273 for (i = 0; i < rdev->doorbell.num_pages; i++) {
274 rdev->doorbell.free[i] = true;
280 * radeon_doorbell_fini - Tear down doorbell driver information.
282 * @rdev: radeon_device pointer
284 * Tear down doorbell driver information (CIK)
286 void radeon_doorbell_fini(struct radeon_device *rdev)
288 iounmap(rdev->doorbell.ptr);
289 rdev->doorbell.ptr = NULL;
293 * radeon_doorbell_get - Allocate a doorbell page
295 * @rdev: radeon_device pointer
296 * @doorbell: doorbell page number
298 * Allocate a doorbell page for use by the driver (all asics).
299 * Returns 0 on success or -EINVAL on failure.
301 int radeon_doorbell_get(struct radeon_device *rdev, u32 *doorbell)
305 for (i = 0; i < rdev->doorbell.num_pages; i++) {
306 if (rdev->doorbell.free[i]) {
307 rdev->doorbell.free[i] = false;
316 * radeon_doorbell_free - Free a doorbell page
318 * @rdev: radeon_device pointer
319 * @doorbell: doorbell page number
321 * Free a doorbell page allocated for use by the driver (all asics)
323 void radeon_doorbell_free(struct radeon_device *rdev, u32 doorbell)
325 if (doorbell < rdev->doorbell.num_pages)
326 rdev->doorbell.free[doorbell] = true;
331 * Writeback is the the method by which the the GPU updates special pages
332 * in memory with the status of certain GPU events (fences, ring pointers,
337 * radeon_wb_disable - Disable Writeback
339 * @rdev: radeon_device pointer
341 * Disables Writeback (all asics). Used for suspend.
343 void radeon_wb_disable(struct radeon_device *rdev)
345 rdev->wb.enabled = false;
349 * radeon_wb_fini - Disable Writeback and free memory
351 * @rdev: radeon_device pointer
353 * Disables Writeback and frees the Writeback memory (all asics).
354 * Used at driver shutdown.
356 void radeon_wb_fini(struct radeon_device *rdev)
358 radeon_wb_disable(rdev);
359 if (rdev->wb.wb_obj) {
360 if (!radeon_bo_reserve(rdev->wb.wb_obj, false)) {
361 radeon_bo_kunmap(rdev->wb.wb_obj);
362 radeon_bo_unpin(rdev->wb.wb_obj);
363 radeon_bo_unreserve(rdev->wb.wb_obj);
365 radeon_bo_unref(&rdev->wb.wb_obj);
367 rdev->wb.wb_obj = NULL;
372 * radeon_wb_init- Init Writeback driver info and allocate memory
374 * @rdev: radeon_device pointer
376 * Disables Writeback and frees the Writeback memory (all asics).
377 * Used at driver startup.
378 * Returns 0 on success or an -error on failure.
380 int radeon_wb_init(struct radeon_device *rdev)
384 if (rdev->wb.wb_obj == NULL) {
385 r = radeon_bo_create(rdev, RADEON_GPU_PAGE_SIZE, PAGE_SIZE, true,
386 RADEON_GEM_DOMAIN_GTT, NULL, &rdev->wb.wb_obj);
388 dev_warn(rdev->dev, "(%d) create WB bo failed\n", r);
391 r = radeon_bo_reserve(rdev->wb.wb_obj, false);
392 if (unlikely(r != 0)) {
393 radeon_wb_fini(rdev);
396 r = radeon_bo_pin(rdev->wb.wb_obj, RADEON_GEM_DOMAIN_GTT,
399 radeon_bo_unreserve(rdev->wb.wb_obj);
400 dev_warn(rdev->dev, "(%d) pin WB bo failed\n", r);
401 radeon_wb_fini(rdev);
404 r = radeon_bo_kmap(rdev->wb.wb_obj, (void **)&rdev->wb.wb);
405 radeon_bo_unreserve(rdev->wb.wb_obj);
407 dev_warn(rdev->dev, "(%d) map WB bo failed\n", r);
408 radeon_wb_fini(rdev);
413 /* clear wb memory */
414 memset((char *)rdev->wb.wb, 0, RADEON_GPU_PAGE_SIZE);
415 /* disable event_write fences */
416 rdev->wb.use_event = false;
417 /* disabled via module param */
418 if (radeon_no_wb == 1) {
419 rdev->wb.enabled = false;
421 if (rdev->flags & RADEON_IS_AGP) {
422 /* often unreliable on AGP */
423 rdev->wb.enabled = false;
424 } else if (rdev->family < CHIP_R300) {
425 /* often unreliable on pre-r300 */
426 rdev->wb.enabled = false;
428 rdev->wb.enabled = true;
429 /* event_write fences are only available on r600+ */
430 if (rdev->family >= CHIP_R600) {
431 rdev->wb.use_event = true;
435 /* always use writeback/events on NI, APUs */
436 if (rdev->family >= CHIP_PALM) {
437 rdev->wb.enabled = true;
438 rdev->wb.use_event = true;
441 dev_info(rdev->dev, "WB %sabled\n", rdev->wb.enabled ? "en" : "dis");
447 * radeon_vram_location - try to find VRAM location
448 * @rdev: radeon device structure holding all necessary informations
449 * @mc: memory controller structure holding memory informations
450 * @base: base address at which to put VRAM
452 * Function will place try to place VRAM at base address provided
453 * as parameter (which is so far either PCI aperture address or
454 * for IGP TOM base address).
456 * If there is not enough space to fit the unvisible VRAM in the 32bits
457 * address space then we limit the VRAM size to the aperture.
459 * If we are using AGP and if the AGP aperture doesn't allow us to have
460 * room for all the VRAM than we restrict the VRAM to the PCI aperture
461 * size and print a warning.
463 * This function will never fails, worst case are limiting VRAM.
465 * Note: GTT start, end, size should be initialized before calling this
466 * function on AGP platform.
468 * Note: We don't explicitly enforce VRAM start to be aligned on VRAM size,
469 * this shouldn't be a problem as we are using the PCI aperture as a reference.
470 * Otherwise this would be needed for rv280, all r3xx, and all r4xx, but
473 * Note: we use mc_vram_size as on some board we need to program the mc to
474 * cover the whole aperture even if VRAM size is inferior to aperture size
475 * Novell bug 204882 + along with lots of ubuntu ones
477 * Note: when limiting vram it's safe to overwritte real_vram_size because
478 * we are not in case where real_vram_size is inferior to mc_vram_size (ie
479 * note afected by bogus hw of Novell bug 204882 + along with lots of ubuntu
482 * Note: IGP TOM addr should be the same as the aperture addr, we don't
483 * explicitly check for that thought.
485 * FIXME: when reducing VRAM size align new size on power of 2.
487 void radeon_vram_location(struct radeon_device *rdev, struct radeon_mc *mc, u64 base)
489 uint64_t limit = (uint64_t)radeon_vram_limit << 20;
491 mc->vram_start = base;
492 if (mc->mc_vram_size > (rdev->mc.mc_mask - base + 1)) {
493 dev_warn(rdev->dev, "limiting VRAM to PCI aperture size\n");
494 mc->real_vram_size = mc->aper_size;
495 mc->mc_vram_size = mc->aper_size;
497 mc->vram_end = mc->vram_start + mc->mc_vram_size - 1;
498 if (rdev->flags & RADEON_IS_AGP && mc->vram_end > mc->gtt_start && mc->vram_start <= mc->gtt_end) {
499 dev_warn(rdev->dev, "limiting VRAM to PCI aperture size\n");
500 mc->real_vram_size = mc->aper_size;
501 mc->mc_vram_size = mc->aper_size;
503 mc->vram_end = mc->vram_start + mc->mc_vram_size - 1;
504 if (limit && limit < mc->real_vram_size)
505 mc->real_vram_size = limit;
506 dev_info(rdev->dev, "VRAM: %lluM 0x%016llX - 0x%016llX (%lluM used)\n",
507 mc->mc_vram_size >> 20, mc->vram_start,
508 mc->vram_end, mc->real_vram_size >> 20);
512 * radeon_gtt_location - try to find GTT location
513 * @rdev: radeon device structure holding all necessary informations
514 * @mc: memory controller structure holding memory informations
516 * Function will place try to place GTT before or after VRAM.
518 * If GTT size is bigger than space left then we ajust GTT size.
519 * Thus function will never fails.
521 * FIXME: when reducing GTT size align new size on power of 2.
523 void radeon_gtt_location(struct radeon_device *rdev, struct radeon_mc *mc)
525 u64 size_af, size_bf;
527 size_af = ((rdev->mc.mc_mask - mc->vram_end) + mc->gtt_base_align) & ~mc->gtt_base_align;
528 size_bf = mc->vram_start & ~mc->gtt_base_align;
529 if (size_bf > size_af) {
530 if (mc->gtt_size > size_bf) {
531 dev_warn(rdev->dev, "limiting GTT\n");
532 mc->gtt_size = size_bf;
534 mc->gtt_start = (mc->vram_start & ~mc->gtt_base_align) - mc->gtt_size;
536 if (mc->gtt_size > size_af) {
537 dev_warn(rdev->dev, "limiting GTT\n");
538 mc->gtt_size = size_af;
540 mc->gtt_start = (mc->vram_end + 1 + mc->gtt_base_align) & ~mc->gtt_base_align;
542 mc->gtt_end = mc->gtt_start + mc->gtt_size - 1;
543 dev_info(rdev->dev, "GTT: %lluM 0x%016llX - 0x%016llX\n",
544 mc->gtt_size >> 20, mc->gtt_start, mc->gtt_end);
548 * GPU helpers function.
551 * radeon_card_posted - check if the hw has already been initialized
553 * @rdev: radeon_device pointer
555 * Check if the asic has been initialized (all asics).
556 * Used at driver startup.
557 * Returns true if initialized or false if not.
559 bool radeon_card_posted(struct radeon_device *rdev)
563 /* required for EFI mode on macbook2,1 which uses an r5xx asic */
564 if (efi_enabled(EFI_BOOT) &&
565 (rdev->pdev->subsystem_vendor == PCI_VENDOR_ID_APPLE) &&
566 (rdev->family < CHIP_R600))
569 if (ASIC_IS_NODCE(rdev))
572 /* first check CRTCs */
573 if (ASIC_IS_DCE4(rdev)) {
574 reg = RREG32(EVERGREEN_CRTC_CONTROL + EVERGREEN_CRTC0_REGISTER_OFFSET) |
575 RREG32(EVERGREEN_CRTC_CONTROL + EVERGREEN_CRTC1_REGISTER_OFFSET);
576 if (rdev->num_crtc >= 4) {
577 reg |= RREG32(EVERGREEN_CRTC_CONTROL + EVERGREEN_CRTC2_REGISTER_OFFSET) |
578 RREG32(EVERGREEN_CRTC_CONTROL + EVERGREEN_CRTC3_REGISTER_OFFSET);
580 if (rdev->num_crtc >= 6) {
581 reg |= RREG32(EVERGREEN_CRTC_CONTROL + EVERGREEN_CRTC4_REGISTER_OFFSET) |
582 RREG32(EVERGREEN_CRTC_CONTROL + EVERGREEN_CRTC5_REGISTER_OFFSET);
584 if (reg & EVERGREEN_CRTC_MASTER_EN)
586 } else if (ASIC_IS_AVIVO(rdev)) {
587 reg = RREG32(AVIVO_D1CRTC_CONTROL) |
588 RREG32(AVIVO_D2CRTC_CONTROL);
589 if (reg & AVIVO_CRTC_EN) {
593 reg = RREG32(RADEON_CRTC_GEN_CNTL) |
594 RREG32(RADEON_CRTC2_GEN_CNTL);
595 if (reg & RADEON_CRTC_EN) {
601 /* then check MEM_SIZE, in case the crtcs are off */
602 if (rdev->family >= CHIP_R600)
603 reg = RREG32(R600_CONFIG_MEMSIZE);
605 reg = RREG32(RADEON_CONFIG_MEMSIZE);
615 * radeon_update_bandwidth_info - update display bandwidth params
617 * @rdev: radeon_device pointer
619 * Used when sclk/mclk are switched or display modes are set.
620 * params are used to calculate display watermarks (all asics)
622 void radeon_update_bandwidth_info(struct radeon_device *rdev)
625 u32 sclk = rdev->pm.current_sclk;
626 u32 mclk = rdev->pm.current_mclk;
628 /* sclk/mclk in Mhz */
629 a.full = dfixed_const(100);
630 rdev->pm.sclk.full = dfixed_const(sclk);
631 rdev->pm.sclk.full = dfixed_div(rdev->pm.sclk, a);
632 rdev->pm.mclk.full = dfixed_const(mclk);
633 rdev->pm.mclk.full = dfixed_div(rdev->pm.mclk, a);
635 if (rdev->flags & RADEON_IS_IGP) {
636 a.full = dfixed_const(16);
637 /* core_bandwidth = sclk(Mhz) * 16 */
638 rdev->pm.core_bandwidth.full = dfixed_div(rdev->pm.sclk, a);
643 * radeon_boot_test_post_card - check and possibly initialize the hw
645 * @rdev: radeon_device pointer
647 * Check if the asic is initialized and if not, attempt to initialize
649 * Returns true if initialized or false if not.
651 bool radeon_boot_test_post_card(struct radeon_device *rdev)
653 if (radeon_card_posted(rdev))
657 DRM_INFO("GPU not posted. posting now...\n");
658 if (rdev->is_atom_bios)
659 atom_asic_init(rdev->mode_info.atom_context);
661 radeon_combios_asic_init(rdev->ddev);
664 dev_err(rdev->dev, "Card not posted and no BIOS - ignoring\n");
670 * radeon_dummy_page_init - init dummy page used by the driver
672 * @rdev: radeon_device pointer
674 * Allocate the dummy page used by the driver (all asics).
675 * This dummy page is used by the driver as a filler for gart entries
676 * when pages are taken out of the GART
677 * Returns 0 on sucess, -ENOMEM on failure.
679 int radeon_dummy_page_init(struct radeon_device *rdev)
681 if (rdev->dummy_page.page)
683 rdev->dummy_page.page = alloc_page(GFP_DMA32 | GFP_KERNEL | __GFP_ZERO);
684 if (rdev->dummy_page.page == NULL)
686 rdev->dummy_page.addr = pci_map_page(rdev->pdev, rdev->dummy_page.page,
687 0, PAGE_SIZE, PCI_DMA_BIDIRECTIONAL);
688 if (pci_dma_mapping_error(rdev->pdev, rdev->dummy_page.addr)) {
689 dev_err(&rdev->pdev->dev, "Failed to DMA MAP the dummy page\n");
690 __free_page(rdev->dummy_page.page);
691 rdev->dummy_page.page = NULL;
698 * radeon_dummy_page_fini - free dummy page used by the driver
700 * @rdev: radeon_device pointer
702 * Frees the dummy page used by the driver (all asics).
704 void radeon_dummy_page_fini(struct radeon_device *rdev)
706 if (rdev->dummy_page.page == NULL)
708 pci_unmap_page(rdev->pdev, rdev->dummy_page.addr,
709 PAGE_SIZE, PCI_DMA_BIDIRECTIONAL);
710 __free_page(rdev->dummy_page.page);
711 rdev->dummy_page.page = NULL;
715 /* ATOM accessor methods */
717 * ATOM is an interpreted byte code stored in tables in the vbios. The
718 * driver registers callbacks to access registers and the interpreter
719 * in the driver parses the tables and executes then to program specific
720 * actions (set display modes, asic init, etc.). See radeon_atombios.c,
721 * atombios.h, and atom.c
725 * cail_pll_read - read PLL register
727 * @info: atom card_info pointer
728 * @reg: PLL register offset
730 * Provides a PLL register accessor for the atom interpreter (r4xx+).
731 * Returns the value of the PLL register.
733 static uint32_t cail_pll_read(struct card_info *info, uint32_t reg)
735 struct radeon_device *rdev = info->dev->dev_private;
738 r = rdev->pll_rreg(rdev, reg);
743 * cail_pll_write - write PLL register
745 * @info: atom card_info pointer
746 * @reg: PLL register offset
747 * @val: value to write to the pll register
749 * Provides a PLL register accessor for the atom interpreter (r4xx+).
751 static void cail_pll_write(struct card_info *info, uint32_t reg, uint32_t val)
753 struct radeon_device *rdev = info->dev->dev_private;
755 rdev->pll_wreg(rdev, reg, val);
759 * cail_mc_read - read MC (Memory Controller) register
761 * @info: atom card_info pointer
762 * @reg: MC register offset
764 * Provides an MC register accessor for the atom interpreter (r4xx+).
765 * Returns the value of the MC register.
767 static uint32_t cail_mc_read(struct card_info *info, uint32_t reg)
769 struct radeon_device *rdev = info->dev->dev_private;
772 r = rdev->mc_rreg(rdev, reg);
777 * cail_mc_write - write MC (Memory Controller) register
779 * @info: atom card_info pointer
780 * @reg: MC register offset
781 * @val: value to write to the pll register
783 * Provides a MC register accessor for the atom interpreter (r4xx+).
785 static void cail_mc_write(struct card_info *info, uint32_t reg, uint32_t val)
787 struct radeon_device *rdev = info->dev->dev_private;
789 rdev->mc_wreg(rdev, reg, val);
793 * cail_reg_write - write MMIO register
795 * @info: atom card_info pointer
796 * @reg: MMIO register offset
797 * @val: value to write to the pll register
799 * Provides a MMIO register accessor for the atom interpreter (r4xx+).
801 static void cail_reg_write(struct card_info *info, uint32_t reg, uint32_t val)
803 struct radeon_device *rdev = info->dev->dev_private;
809 * cail_reg_read - read MMIO register
811 * @info: atom card_info pointer
812 * @reg: MMIO register offset
814 * Provides an MMIO register accessor for the atom interpreter (r4xx+).
815 * Returns the value of the MMIO register.
817 static uint32_t cail_reg_read(struct card_info *info, uint32_t reg)
819 struct radeon_device *rdev = info->dev->dev_private;
827 * cail_ioreg_write - write IO register
829 * @info: atom card_info pointer
830 * @reg: IO register offset
831 * @val: value to write to the pll register
833 * Provides a IO register accessor for the atom interpreter (r4xx+).
835 static void cail_ioreg_write(struct card_info *info, uint32_t reg, uint32_t val)
837 struct radeon_device *rdev = info->dev->dev_private;
839 WREG32_IO(reg*4, val);
843 * cail_ioreg_read - read IO register
845 * @info: atom card_info pointer
846 * @reg: IO register offset
848 * Provides an IO register accessor for the atom interpreter (r4xx+).
849 * Returns the value of the IO register.
851 static uint32_t cail_ioreg_read(struct card_info *info, uint32_t reg)
853 struct radeon_device *rdev = info->dev->dev_private;
856 r = RREG32_IO(reg*4);
861 * radeon_atombios_init - init the driver info and callbacks for atombios
863 * @rdev: radeon_device pointer
865 * Initializes the driver info and register access callbacks for the
866 * ATOM interpreter (r4xx+).
867 * Returns 0 on sucess, -ENOMEM on failure.
868 * Called at driver startup.
870 int radeon_atombios_init(struct radeon_device *rdev)
872 struct card_info *atom_card_info =
873 kzalloc(sizeof(struct card_info), GFP_KERNEL);
878 rdev->mode_info.atom_card_info = atom_card_info;
879 atom_card_info->dev = rdev->ddev;
880 atom_card_info->reg_read = cail_reg_read;
881 atom_card_info->reg_write = cail_reg_write;
882 /* needed for iio ops */
884 atom_card_info->ioreg_read = cail_ioreg_read;
885 atom_card_info->ioreg_write = cail_ioreg_write;
887 DRM_ERROR("Unable to find PCI I/O BAR; using MMIO for ATOM IIO\n");
888 atom_card_info->ioreg_read = cail_reg_read;
889 atom_card_info->ioreg_write = cail_reg_write;
891 atom_card_info->mc_read = cail_mc_read;
892 atom_card_info->mc_write = cail_mc_write;
893 atom_card_info->pll_read = cail_pll_read;
894 atom_card_info->pll_write = cail_pll_write;
896 rdev->mode_info.atom_context = atom_parse(atom_card_info, rdev->bios);
897 if (!rdev->mode_info.atom_context) {
898 radeon_atombios_fini(rdev);
902 mutex_init(&rdev->mode_info.atom_context->mutex);
903 radeon_atom_initialize_bios_scratch_regs(rdev->ddev);
904 atom_allocate_fb_scratch(rdev->mode_info.atom_context);
909 * radeon_atombios_fini - free the driver info and callbacks for atombios
911 * @rdev: radeon_device pointer
913 * Frees the driver info and register access callbacks for the ATOM
914 * interpreter (r4xx+).
915 * Called at driver shutdown.
917 void radeon_atombios_fini(struct radeon_device *rdev)
919 if (rdev->mode_info.atom_context) {
920 kfree(rdev->mode_info.atom_context->scratch);
922 kfree(rdev->mode_info.atom_context);
923 rdev->mode_info.atom_context = NULL;
924 kfree(rdev->mode_info.atom_card_info);
925 rdev->mode_info.atom_card_info = NULL;
930 * COMBIOS is the bios format prior to ATOM. It provides
931 * command tables similar to ATOM, but doesn't have a unified
932 * parser. See radeon_combios.c
936 * radeon_combios_init - init the driver info for combios
938 * @rdev: radeon_device pointer
940 * Initializes the driver info for combios (r1xx-r3xx).
941 * Returns 0 on sucess.
942 * Called at driver startup.
944 int radeon_combios_init(struct radeon_device *rdev)
946 radeon_combios_initialize_bios_scratch_regs(rdev->ddev);
951 * radeon_combios_fini - free the driver info for combios
953 * @rdev: radeon_device pointer
955 * Frees the driver info for combios (r1xx-r3xx).
956 * Called at driver shutdown.
958 void radeon_combios_fini(struct radeon_device *rdev)
962 /* if we get transitioned to only one device, take VGA back */
964 * radeon_vga_set_decode - enable/disable vga decode
966 * @cookie: radeon_device pointer
967 * @state: enable/disable vga decode
969 * Enable/disable vga decode (all asics).
970 * Returns VGA resource flags.
972 static unsigned int radeon_vga_set_decode(void *cookie, bool state)
974 struct radeon_device *rdev = cookie;
975 radeon_vga_set_state(rdev, state);
977 return VGA_RSRC_LEGACY_IO | VGA_RSRC_LEGACY_MEM |
978 VGA_RSRC_NORMAL_IO | VGA_RSRC_NORMAL_MEM;
980 return VGA_RSRC_NORMAL_IO | VGA_RSRC_NORMAL_MEM;
984 * radeon_check_pot_argument - check that argument is a power of two
986 * @arg: value to check
988 * Validates that a certain argument is a power of two (all asics).
989 * Returns true if argument is valid.
991 static bool radeon_check_pot_argument(int arg)
993 return (arg & (arg - 1)) == 0;
997 * radeon_check_arguments - validate module params
999 * @rdev: radeon_device pointer
1001 * Validates certain module parameters and updates
1002 * the associated values used by the driver (all asics).
1004 static void radeon_check_arguments(struct radeon_device *rdev)
1006 /* vramlimit must be a power of two */
1007 if (!radeon_check_pot_argument(radeon_vram_limit)) {
1008 dev_warn(rdev->dev, "vram limit (%d) must be a power of 2\n",
1010 radeon_vram_limit = 0;
1013 if (radeon_gart_size == -1) {
1014 /* default to a larger gart size on newer asics */
1015 if (rdev->family >= CHIP_RV770)
1016 radeon_gart_size = 1024;
1018 radeon_gart_size = 512;
1020 /* gtt size must be power of two and greater or equal to 32M */
1021 if (radeon_gart_size < 32) {
1022 dev_warn(rdev->dev, "gart size (%d) too small\n",
1024 if (rdev->family >= CHIP_RV770)
1025 radeon_gart_size = 1024;
1027 radeon_gart_size = 512;
1028 } else if (!radeon_check_pot_argument(radeon_gart_size)) {
1029 dev_warn(rdev->dev, "gart size (%d) must be a power of 2\n",
1031 if (rdev->family >= CHIP_RV770)
1032 radeon_gart_size = 1024;
1034 radeon_gart_size = 512;
1036 rdev->mc.gtt_size = (uint64_t)radeon_gart_size << 20;
1038 /* AGP mode can only be -1, 1, 2, 4, 8 */
1039 switch (radeon_agpmode) {
1048 dev_warn(rdev->dev, "invalid AGP mode %d (valid mode: "
1049 "-1, 0, 1, 2, 4, 8)\n", radeon_agpmode);
1056 * radeon_switcheroo_quirk_long_wakeup - return true if longer d3 delay is
1057 * needed for waking up.
1059 * @pdev: pci dev pointer
1061 static bool radeon_switcheroo_quirk_long_wakeup(struct pci_dev *pdev)
1064 /* 6600m in a macbook pro */
1065 if (pdev->subsystem_vendor == PCI_VENDOR_ID_APPLE &&
1066 pdev->subsystem_device == 0x00e2) {
1067 printk(KERN_INFO "radeon: quirking longer d3 wakeup delay\n");
1075 * radeon_switcheroo_set_state - set switcheroo state
1077 * @pdev: pci dev pointer
1078 * @state: vga switcheroo state
1080 * Callback for the switcheroo driver. Suspends or resumes the
1081 * the asics before or after it is powered up using ACPI methods.
1083 static void radeon_switcheroo_set_state(struct pci_dev *pdev, enum vga_switcheroo_state state)
1085 struct drm_device *dev = pci_get_drvdata(pdev);
1087 if (radeon_is_px() && state == VGA_SWITCHEROO_OFF)
1090 if (state == VGA_SWITCHEROO_ON) {
1091 unsigned d3_delay = dev->pdev->d3_delay;
1093 printk(KERN_INFO "radeon: switched on\n");
1094 /* don't suspend or resume card normally */
1095 dev->switch_power_state = DRM_SWITCH_POWER_CHANGING;
1097 if (d3_delay < 20 && radeon_switcheroo_quirk_long_wakeup(pdev))
1098 dev->pdev->d3_delay = 20;
1100 radeon_resume_kms(dev, true, true);
1102 dev->pdev->d3_delay = d3_delay;
1104 dev->switch_power_state = DRM_SWITCH_POWER_ON;
1105 drm_kms_helper_poll_enable(dev);
1107 printk(KERN_INFO "radeon: switched off\n");
1108 drm_kms_helper_poll_disable(dev);
1109 dev->switch_power_state = DRM_SWITCH_POWER_CHANGING;
1110 radeon_suspend_kms(dev, true, true);
1111 dev->switch_power_state = DRM_SWITCH_POWER_OFF;
1116 * radeon_switcheroo_can_switch - see if switcheroo state can change
1118 * @pdev: pci dev pointer
1120 * Callback for the switcheroo driver. Check of the switcheroo
1121 * state can be changed.
1122 * Returns true if the state can be changed, false if not.
1124 static bool radeon_switcheroo_can_switch(struct pci_dev *pdev)
1126 struct drm_device *dev = pci_get_drvdata(pdev);
1129 spin_lock(&dev->count_lock);
1130 can_switch = (dev->open_count == 0);
1131 spin_unlock(&dev->count_lock);
1135 static const struct vga_switcheroo_client_ops radeon_switcheroo_ops = {
1136 .set_gpu_state = radeon_switcheroo_set_state,
1138 .can_switch = radeon_switcheroo_can_switch,
1142 * radeon_device_init - initialize the driver
1144 * @rdev: radeon_device pointer
1145 * @pdev: drm dev pointer
1146 * @pdev: pci dev pointer
1147 * @flags: driver flags
1149 * Initializes the driver info and hw (all asics).
1150 * Returns 0 for success or an error on failure.
1151 * Called at driver startup.
1153 int radeon_device_init(struct radeon_device *rdev,
1154 struct drm_device *ddev,
1155 struct pci_dev *pdev,
1160 bool runtime = false;
1162 rdev->shutdown = false;
1163 rdev->dev = &pdev->dev;
1166 rdev->flags = flags;
1167 rdev->family = flags & RADEON_FAMILY_MASK;
1168 rdev->is_atom_bios = false;
1169 rdev->usec_timeout = RADEON_MAX_USEC_TIMEOUT;
1170 rdev->mc.gtt_size = 512 * 1024 * 1024;
1171 rdev->accel_working = false;
1172 /* set up ring ids */
1173 for (i = 0; i < RADEON_NUM_RINGS; i++) {
1174 rdev->ring[i].idx = i;
1177 DRM_INFO("initializing kernel modesetting (%s 0x%04X:0x%04X 0x%04X:0x%04X).\n",
1178 radeon_family_name[rdev->family], pdev->vendor, pdev->device,
1179 pdev->subsystem_vendor, pdev->subsystem_device);
1181 /* mutex initialization are all done here so we
1182 * can recall function without having locking issues */
1183 mutex_init(&rdev->ring_lock);
1184 mutex_init(&rdev->dc_hw_i2c_mutex);
1185 atomic_set(&rdev->ih.lock, 0);
1186 mutex_init(&rdev->gem.mutex);
1187 mutex_init(&rdev->pm.mutex);
1188 mutex_init(&rdev->gpu_clock_mutex);
1189 mutex_init(&rdev->srbm_mutex);
1190 init_rwsem(&rdev->pm.mclk_lock);
1191 init_rwsem(&rdev->exclusive_lock);
1192 init_waitqueue_head(&rdev->irq.vblank_queue);
1193 r = radeon_gem_init(rdev);
1196 /* initialize vm here */
1197 mutex_init(&rdev->vm_manager.lock);
1198 /* Adjust VM size here.
1199 * Currently set to 4GB ((1 << 20) 4k pages).
1200 * Max GPUVM size for cayman and SI is 40 bits.
1202 rdev->vm_manager.max_pfn = 1 << 20;
1203 INIT_LIST_HEAD(&rdev->vm_manager.lru_vm);
1205 /* Set asic functions */
1206 r = radeon_asic_init(rdev);
1209 radeon_check_arguments(rdev);
1211 /* all of the newer IGP chips have an internal gart
1212 * However some rs4xx report as AGP, so remove that here.
1214 if ((rdev->family >= CHIP_RS400) &&
1215 (rdev->flags & RADEON_IS_IGP)) {
1216 rdev->flags &= ~RADEON_IS_AGP;
1219 if (rdev->flags & RADEON_IS_AGP && radeon_agpmode == -1) {
1220 radeon_agp_disable(rdev);
1223 /* Set the internal MC address mask
1224 * This is the max address of the GPU's
1225 * internal address space.
1227 if (rdev->family >= CHIP_CAYMAN)
1228 rdev->mc.mc_mask = 0xffffffffffULL; /* 40 bit MC */
1229 else if (rdev->family >= CHIP_CEDAR)
1230 rdev->mc.mc_mask = 0xfffffffffULL; /* 36 bit MC */
1232 rdev->mc.mc_mask = 0xffffffffULL; /* 32 bit MC */
1234 /* set DMA mask + need_dma32 flags.
1235 * PCIE - can handle 40-bits.
1236 * IGP - can handle 40-bits
1237 * AGP - generally dma32 is safest
1238 * PCI - dma32 for legacy pci gart, 40 bits on newer asics
1240 rdev->need_dma32 = false;
1241 if (rdev->flags & RADEON_IS_AGP)
1242 rdev->need_dma32 = true;
1243 if ((rdev->flags & RADEON_IS_PCI) &&
1244 (rdev->family <= CHIP_RS740))
1245 rdev->need_dma32 = true;
1247 dma_bits = rdev->need_dma32 ? 32 : 40;
1248 r = pci_set_dma_mask(rdev->pdev, DMA_BIT_MASK(dma_bits));
1250 rdev->need_dma32 = true;
1252 printk(KERN_WARNING "radeon: No suitable DMA available.\n");
1254 r = pci_set_consistent_dma_mask(rdev->pdev, DMA_BIT_MASK(dma_bits));
1256 pci_set_consistent_dma_mask(rdev->pdev, DMA_BIT_MASK(32));
1257 printk(KERN_WARNING "radeon: No coherent DMA available.\n");
1260 /* Registers mapping */
1261 /* TODO: block userspace mapping of io register */
1262 spin_lock_init(&rdev->mmio_idx_lock);
1263 spin_lock_init(&rdev->smc_idx_lock);
1264 spin_lock_init(&rdev->pll_idx_lock);
1265 spin_lock_init(&rdev->mc_idx_lock);
1266 spin_lock_init(&rdev->pcie_idx_lock);
1267 spin_lock_init(&rdev->pciep_idx_lock);
1268 spin_lock_init(&rdev->pif_idx_lock);
1269 spin_lock_init(&rdev->cg_idx_lock);
1270 spin_lock_init(&rdev->uvd_idx_lock);
1271 spin_lock_init(&rdev->rcu_idx_lock);
1272 spin_lock_init(&rdev->didt_idx_lock);
1273 spin_lock_init(&rdev->end_idx_lock);
1274 if (rdev->family >= CHIP_BONAIRE) {
1275 rdev->rmmio_base = pci_resource_start(rdev->pdev, 5);
1276 rdev->rmmio_size = pci_resource_len(rdev->pdev, 5);
1278 rdev->rmmio_base = pci_resource_start(rdev->pdev, 2);
1279 rdev->rmmio_size = pci_resource_len(rdev->pdev, 2);
1281 rdev->rmmio = ioremap(rdev->rmmio_base, rdev->rmmio_size);
1282 if (rdev->rmmio == NULL) {
1285 DRM_INFO("register mmio base: 0x%08X\n", (uint32_t)rdev->rmmio_base);
1286 DRM_INFO("register mmio size: %u\n", (unsigned)rdev->rmmio_size);
1288 /* doorbell bar mapping */
1289 if (rdev->family >= CHIP_BONAIRE)
1290 radeon_doorbell_init(rdev);
1292 /* io port mapping */
1293 for (i = 0; i < DEVICE_COUNT_RESOURCE; i++) {
1294 if (pci_resource_flags(rdev->pdev, i) & IORESOURCE_IO) {
1295 rdev->rio_mem_size = pci_resource_len(rdev->pdev, i);
1296 rdev->rio_mem = pci_iomap(rdev->pdev, i, rdev->rio_mem_size);
1300 if (rdev->rio_mem == NULL)
1301 DRM_ERROR("Unable to find PCI I/O BAR\n");
1303 /* if we have > 1 VGA cards, then disable the radeon VGA resources */
1304 /* this will fail for cards that aren't VGA class devices, just
1306 vga_client_register(rdev->pdev, rdev, NULL, radeon_vga_set_decode);
1308 if (radeon_runtime_pm == 1)
1310 if ((radeon_runtime_pm == -1) && radeon_is_px())
1312 vga_switcheroo_register_client(rdev->pdev, &radeon_switcheroo_ops, runtime);
1314 vga_switcheroo_init_domain_pm_ops(rdev->dev, &rdev->vga_pm_domain);
1316 r = radeon_init(rdev);
1320 r = radeon_ib_ring_tests(rdev);
1322 DRM_ERROR("ib ring test failed (%d).\n", r);
1324 r = radeon_gem_debugfs_init(rdev);
1326 DRM_ERROR("registering gem debugfs failed (%d).\n", r);
1329 if (rdev->flags & RADEON_IS_AGP && !rdev->accel_working) {
1330 /* Acceleration not working on AGP card try again
1331 * with fallback to PCI or PCIE GART
1333 radeon_asic_reset(rdev);
1335 radeon_agp_disable(rdev);
1336 r = radeon_init(rdev);
1340 if ((radeon_testing & 1)) {
1341 if (rdev->accel_working)
1342 radeon_test_moves(rdev);
1344 DRM_INFO("radeon: acceleration disabled, skipping move tests\n");
1346 if ((radeon_testing & 2)) {
1347 if (rdev->accel_working)
1348 radeon_test_syncing(rdev);
1350 DRM_INFO("radeon: acceleration disabled, skipping sync tests\n");
1352 if (radeon_benchmarking) {
1353 if (rdev->accel_working)
1354 radeon_benchmark(rdev, radeon_benchmarking);
1356 DRM_INFO("radeon: acceleration disabled, skipping benchmarks\n");
1361 static void radeon_debugfs_remove_files(struct radeon_device *rdev);
1364 * radeon_device_fini - tear down the driver
1366 * @rdev: radeon_device pointer
1368 * Tear down the driver info (all asics).
1369 * Called at driver shutdown.
1371 void radeon_device_fini(struct radeon_device *rdev)
1373 DRM_INFO("radeon: finishing device.\n");
1374 rdev->shutdown = true;
1375 /* evict vram memory */
1376 radeon_bo_evict_vram(rdev);
1378 vga_switcheroo_unregister_client(rdev->pdev);
1379 vga_client_register(rdev->pdev, NULL, NULL, NULL);
1381 pci_iounmap(rdev->pdev, rdev->rio_mem);
1382 rdev->rio_mem = NULL;
1383 iounmap(rdev->rmmio);
1385 if (rdev->family >= CHIP_BONAIRE)
1386 radeon_doorbell_fini(rdev);
1387 radeon_debugfs_remove_files(rdev);
1395 * radeon_suspend_kms - initiate device suspend
1397 * @pdev: drm dev pointer
1398 * @state: suspend state
1400 * Puts the hw in the suspend state (all asics).
1401 * Returns 0 for success or an error on failure.
1402 * Called at driver suspend.
1404 int radeon_suspend_kms(struct drm_device *dev, bool suspend, bool fbcon)
1406 struct radeon_device *rdev;
1407 struct drm_crtc *crtc;
1408 struct drm_connector *connector;
1410 bool force_completion = false;
1412 if (dev == NULL || dev->dev_private == NULL) {
1416 rdev = dev->dev_private;
1418 if (dev->switch_power_state == DRM_SWITCH_POWER_OFF)
1421 drm_kms_helper_poll_disable(dev);
1423 /* turn off display hw */
1424 list_for_each_entry(connector, &dev->mode_config.connector_list, head) {
1425 drm_helper_connector_dpms(connector, DRM_MODE_DPMS_OFF);
1428 /* unpin the front buffers */
1429 list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) {
1430 struct radeon_framebuffer *rfb = to_radeon_framebuffer(crtc->fb);
1431 struct radeon_bo *robj;
1433 if (rfb == NULL || rfb->obj == NULL) {
1436 robj = gem_to_radeon_bo(rfb->obj);
1437 /* don't unpin kernel fb objects */
1438 if (!radeon_fbdev_robj_is_fb(rdev, robj)) {
1439 r = radeon_bo_reserve(robj, false);
1441 radeon_bo_unpin(robj);
1442 radeon_bo_unreserve(robj);
1446 /* evict vram memory */
1447 radeon_bo_evict_vram(rdev);
1449 mutex_lock(&rdev->ring_lock);
1450 /* wait for gpu to finish processing current batch */
1451 for (i = 0; i < RADEON_NUM_RINGS; i++) {
1452 r = radeon_fence_wait_empty_locked(rdev, i);
1454 /* delay GPU reset to resume */
1455 force_completion = true;
1458 if (force_completion) {
1459 radeon_fence_driver_force_completion(rdev);
1461 mutex_unlock(&rdev->ring_lock);
1463 radeon_save_bios_scratch_regs(rdev);
1465 radeon_pm_suspend(rdev);
1466 radeon_suspend(rdev);
1467 radeon_hpd_fini(rdev);
1468 /* evict remaining vram memory */
1469 radeon_bo_evict_vram(rdev);
1471 radeon_agp_suspend(rdev);
1473 pci_save_state(dev->pdev);
1475 /* Shut down the device */
1476 pci_disable_device(dev->pdev);
1477 pci_set_power_state(dev->pdev, PCI_D3hot);
1482 radeon_fbdev_set_suspend(rdev, 1);
1489 * radeon_resume_kms - initiate device resume
1491 * @pdev: drm dev pointer
1493 * Bring the hw back to operating state (all asics).
1494 * Returns 0 for success or an error on failure.
1495 * Called at driver resume.
1497 int radeon_resume_kms(struct drm_device *dev, bool resume, bool fbcon)
1499 struct drm_connector *connector;
1500 struct radeon_device *rdev = dev->dev_private;
1503 if (dev->switch_power_state == DRM_SWITCH_POWER_OFF)
1510 pci_set_power_state(dev->pdev, PCI_D0);
1511 pci_restore_state(dev->pdev);
1512 if (pci_enable_device(dev->pdev)) {
1518 /* resume AGP if in use */
1519 radeon_agp_resume(rdev);
1520 radeon_resume(rdev);
1522 r = radeon_ib_ring_tests(rdev);
1524 DRM_ERROR("ib ring test failed (%d).\n", r);
1526 radeon_pm_resume(rdev);
1527 radeon_restore_bios_scratch_regs(rdev);
1530 radeon_fbdev_set_suspend(rdev, 0);
1534 /* init dig PHYs, disp eng pll */
1535 if (rdev->is_atom_bios) {
1536 radeon_atom_encoder_init(rdev);
1537 radeon_atom_disp_eng_pll_init(rdev);
1538 /* turn on the BL */
1539 if (rdev->mode_info.bl_encoder) {
1540 u8 bl_level = radeon_get_backlight_level(rdev,
1541 rdev->mode_info.bl_encoder);
1542 radeon_set_backlight_level(rdev, rdev->mode_info.bl_encoder,
1546 /* reset hpd state */
1547 radeon_hpd_init(rdev);
1548 /* blat the mode back in */
1549 drm_helper_resume_force_mode(dev);
1550 /* turn on display hw */
1551 list_for_each_entry(connector, &dev->mode_config.connector_list, head) {
1552 drm_helper_connector_dpms(connector, DRM_MODE_DPMS_ON);
1555 drm_kms_helper_poll_enable(dev);
1560 * radeon_gpu_reset - reset the asic
1562 * @rdev: radeon device pointer
1564 * Attempt the reset the GPU if it has hung (all asics).
1565 * Returns 0 for success or an error on failure.
1567 int radeon_gpu_reset(struct radeon_device *rdev)
1569 unsigned ring_sizes[RADEON_NUM_RINGS];
1570 uint32_t *ring_data[RADEON_NUM_RINGS];
1577 down_write(&rdev->exclusive_lock);
1579 if (!rdev->needs_reset) {
1580 up_write(&rdev->exclusive_lock);
1584 rdev->needs_reset = false;
1586 radeon_save_bios_scratch_regs(rdev);
1588 resched = ttm_bo_lock_delayed_workqueue(&rdev->mman.bdev);
1589 radeon_pm_suspend(rdev);
1590 radeon_suspend(rdev);
1592 for (i = 0; i < RADEON_NUM_RINGS; ++i) {
1593 ring_sizes[i] = radeon_ring_backup(rdev, &rdev->ring[i],
1595 if (ring_sizes[i]) {
1597 dev_info(rdev->dev, "Saved %d dwords of commands "
1598 "on ring %d.\n", ring_sizes[i], i);
1603 r = radeon_asic_reset(rdev);
1605 dev_info(rdev->dev, "GPU reset succeeded, trying to resume\n");
1606 radeon_resume(rdev);
1609 radeon_restore_bios_scratch_regs(rdev);
1612 for (i = 0; i < RADEON_NUM_RINGS; ++i) {
1613 radeon_ring_restore(rdev, &rdev->ring[i],
1614 ring_sizes[i], ring_data[i]);
1616 ring_data[i] = NULL;
1619 r = radeon_ib_ring_tests(rdev);
1621 dev_err(rdev->dev, "ib ring test failed (%d).\n", r);
1624 radeon_suspend(rdev);
1629 radeon_fence_driver_force_completion(rdev);
1630 for (i = 0; i < RADEON_NUM_RINGS; ++i) {
1631 kfree(ring_data[i]);
1635 radeon_pm_resume(rdev);
1636 drm_helper_resume_force_mode(rdev->ddev);
1638 ttm_bo_unlock_delayed_workqueue(&rdev->mman.bdev, resched);
1640 /* bad news, how to tell it to userspace ? */
1641 dev_info(rdev->dev, "GPU reset failed\n");
1644 up_write(&rdev->exclusive_lock);
1652 int radeon_debugfs_add_files(struct radeon_device *rdev,
1653 struct drm_info_list *files,
1658 for (i = 0; i < rdev->debugfs_count; i++) {
1659 if (rdev->debugfs[i].files == files) {
1660 /* Already registered */
1665 i = rdev->debugfs_count + 1;
1666 if (i > RADEON_DEBUGFS_MAX_COMPONENTS) {
1667 DRM_ERROR("Reached maximum number of debugfs components.\n");
1668 DRM_ERROR("Report so we increase "
1669 "RADEON_DEBUGFS_MAX_COMPONENTS.\n");
1672 rdev->debugfs[rdev->debugfs_count].files = files;
1673 rdev->debugfs[rdev->debugfs_count].num_files = nfiles;
1674 rdev->debugfs_count = i;
1675 #if defined(CONFIG_DEBUG_FS)
1676 drm_debugfs_create_files(files, nfiles,
1677 rdev->ddev->control->debugfs_root,
1678 rdev->ddev->control);
1679 drm_debugfs_create_files(files, nfiles,
1680 rdev->ddev->primary->debugfs_root,
1681 rdev->ddev->primary);
1686 static void radeon_debugfs_remove_files(struct radeon_device *rdev)
1688 #if defined(CONFIG_DEBUG_FS)
1691 for (i = 0; i < rdev->debugfs_count; i++) {
1692 drm_debugfs_remove_files(rdev->debugfs[i].files,
1693 rdev->debugfs[i].num_files,
1694 rdev->ddev->control);
1695 drm_debugfs_remove_files(rdev->debugfs[i].files,
1696 rdev->debugfs[i].num_files,
1697 rdev->ddev->primary);
1702 #if defined(CONFIG_DEBUG_FS)
1703 int radeon_debugfs_init(struct drm_minor *minor)
1708 void radeon_debugfs_cleanup(struct drm_minor *minor)