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 * $FreeBSD: head/sys/dev/drm2/radeon/radeon_device.c 255573 2013-09-14 17:24:41Z dumbbell $
31 #include <drm/drm_crtc_helper.h>
32 #include <uapi_drm/radeon_drm.h>
34 #include "radeon_reg.h"
38 static const char radeon_family_name[][16] = {
104 #define RADEON_PX_QUIRK_DISABLE_PX (1 << 0)
105 #define RADEON_PX_QUIRK_LONG_WAKEUP (1 << 1)
107 struct radeon_px_quirk {
115 static struct radeon_px_quirk radeon_px_quirk_list[] = {
116 /* Acer aspire 5560g (CPU: AMD A4-3305M; GPU: AMD Radeon HD 6480g + 7470m)
117 * https://bugzilla.kernel.org/show_bug.cgi?id=74551
119 { PCI_VENDOR_ID_ATI, 0x6760, 0x1025, 0x0672, RADEON_PX_QUIRK_DISABLE_PX },
120 /* Asus K73TA laptop with AMD A6-3400M APU and Radeon 6550 GPU
121 * https://bugzilla.kernel.org/show_bug.cgi?id=51381
123 { PCI_VENDOR_ID_ATI, 0x6741, 0x1043, 0x108c, RADEON_PX_QUIRK_DISABLE_PX },
124 /* Asus K53TK laptop with AMD A6-3420M APU and Radeon 7670m GPU
125 * https://bugzilla.kernel.org/show_bug.cgi?id=51381
127 { PCI_VENDOR_ID_ATI, 0x6840, 0x1043, 0x2122, RADEON_PX_QUIRK_DISABLE_PX },
128 /* macbook pro 8.2 */
129 { PCI_VENDOR_ID_ATI, 0x6741, PCI_VENDOR_ID_APPLE, 0x00e2, RADEON_PX_QUIRK_LONG_WAKEUP },
133 bool radeon_is_px(struct drm_device *dev)
135 struct radeon_device *rdev = dev->dev_private;
137 if (rdev->flags & RADEON_IS_PX)
142 static void radeon_device_handle_px_quirks(struct radeon_device *rdev)
144 struct radeon_px_quirk *p = radeon_px_quirk_list;
146 /* Apply PX quirks */
147 while (p && p->chip_device != 0) {
148 if (rdev->pdev->vendor == p->chip_vendor &&
149 rdev->pdev->device == p->chip_device &&
150 rdev->pdev->subsystem_vendor == p->subsys_vendor &&
151 rdev->pdev->subsystem_device == p->subsys_device) {
152 rdev->px_quirk_flags = p->px_quirk_flags;
158 if (rdev->px_quirk_flags & RADEON_PX_QUIRK_DISABLE_PX)
159 rdev->flags &= ~RADEON_IS_PX;
163 * radeon_program_register_sequence - program an array of registers.
165 * @rdev: radeon_device pointer
166 * @registers: pointer to the register array
167 * @array_size: size of the register array
169 * Programs an array or registers with and and or masks.
170 * This is a helper for setting golden registers.
172 void radeon_program_register_sequence(struct radeon_device *rdev,
173 const u32 *registers,
174 const u32 array_size)
176 u32 tmp, reg, and_mask, or_mask;
182 for (i = 0; i < array_size; i +=3) {
183 reg = registers[i + 0];
184 and_mask = registers[i + 1];
185 or_mask = registers[i + 2];
187 if (and_mask == 0xffffffff) {
198 void radeon_pci_config_reset(struct radeon_device *rdev)
200 pci_write_config_dword(rdev->pdev, 0x7c, RADEON_ASIC_RESET_DATA);
204 * radeon_surface_init - Clear GPU surface registers.
206 * @rdev: radeon_device pointer
208 * Clear GPU surface registers (r1xx-r5xx).
210 void radeon_surface_init(struct radeon_device *rdev)
212 /* FIXME: check this out */
213 if (rdev->family < CHIP_R600) {
216 for (i = 0; i < RADEON_GEM_MAX_SURFACES; i++) {
217 if (rdev->surface_regs[i].bo)
218 radeon_bo_get_surface_reg(rdev->surface_regs[i].bo);
220 radeon_clear_surface_reg(rdev, i);
222 /* enable surfaces */
223 WREG32(RADEON_SURFACE_CNTL, 0);
228 * GPU scratch registers helpers function.
231 * radeon_scratch_init - Init scratch register driver information.
233 * @rdev: radeon_device pointer
235 * Init CP scratch register driver information (r1xx-r5xx)
237 void radeon_scratch_init(struct radeon_device *rdev)
241 /* FIXME: check this out */
242 if (rdev->family < CHIP_R300) {
243 rdev->scratch.num_reg = 5;
245 rdev->scratch.num_reg = 7;
247 rdev->scratch.reg_base = RADEON_SCRATCH_REG0;
248 for (i = 0; i < rdev->scratch.num_reg; i++) {
249 rdev->scratch.free[i] = true;
250 rdev->scratch.reg[i] = rdev->scratch.reg_base + (i * 4);
255 * radeon_scratch_get - Allocate a scratch register
257 * @rdev: radeon_device pointer
258 * @reg: scratch register mmio offset
260 * Allocate a CP scratch register for use by the driver (all asics).
261 * Returns 0 on success or -EINVAL on failure.
263 int radeon_scratch_get(struct radeon_device *rdev, uint32_t *reg)
267 for (i = 0; i < rdev->scratch.num_reg; i++) {
268 if (rdev->scratch.free[i]) {
269 rdev->scratch.free[i] = false;
270 *reg = rdev->scratch.reg[i];
278 * radeon_scratch_free - Free a scratch register
280 * @rdev: radeon_device pointer
281 * @reg: scratch register mmio offset
283 * Free a CP scratch register allocated for use by the driver (all asics)
285 void radeon_scratch_free(struct radeon_device *rdev, uint32_t reg)
289 for (i = 0; i < rdev->scratch.num_reg; i++) {
290 if (rdev->scratch.reg[i] == reg) {
291 rdev->scratch.free[i] = true;
298 * GPU doorbell aperture helpers function.
301 * radeon_doorbell_init - Init doorbell driver information.
303 * @rdev: radeon_device pointer
305 * Init doorbell driver information (CIK)
306 * Returns 0 on success, error on failure.
308 static int radeon_doorbell_init(struct radeon_device *rdev)
310 /* doorbell bar mapping */
311 rdev->doorbell.base = pci_resource_start(rdev->pdev, 2);
312 rdev->doorbell.size = pci_resource_len(rdev->pdev, 2);
314 rdev->doorbell.num_doorbells = min_t(u32, rdev->doorbell.size / sizeof(u32), RADEON_MAX_DOORBELLS);
315 if (rdev->doorbell.num_doorbells == 0)
318 rdev->doorbell.ptr = ioremap(rdev->doorbell.base, rdev->doorbell.num_doorbells * sizeof(u32));
319 if (rdev->doorbell.ptr == NULL) {
322 DRM_INFO("doorbell mmio base: 0x%08X\n", (uint32_t)rdev->doorbell.base);
323 DRM_INFO("doorbell mmio size: %u\n", (unsigned)rdev->doorbell.size);
325 memset(&rdev->doorbell.used, 0, sizeof(rdev->doorbell.used));
331 * radeon_doorbell_fini - Tear down doorbell driver information.
333 * @rdev: radeon_device pointer
335 * Tear down doorbell driver information (CIK)
337 static void radeon_doorbell_fini(struct radeon_device *rdev)
339 iounmap(rdev->doorbell.ptr, rdev->doorbell.size);
340 rdev->doorbell.ptr = NULL;
344 * radeon_doorbell_get - Allocate a doorbell entry
346 * @rdev: radeon_device pointer
347 * @doorbell: doorbell index
349 * Allocate a doorbell for use by the driver (all asics).
350 * Returns 0 on success or -EINVAL on failure.
352 int radeon_doorbell_get(struct radeon_device *rdev, u32 *doorbell)
354 unsigned long offset = find_first_zero_bit(rdev->doorbell.used, rdev->doorbell.num_doorbells);
355 if (offset < rdev->doorbell.num_doorbells) {
356 __set_bit(offset, rdev->doorbell.used);
365 * radeon_doorbell_free - Free a doorbell entry
367 * @rdev: radeon_device pointer
368 * @doorbell: doorbell index
370 * Free a doorbell allocated for use by the driver (all asics)
372 void radeon_doorbell_free(struct radeon_device *rdev, u32 doorbell)
374 if (doorbell < rdev->doorbell.num_doorbells)
375 __clear_bit(doorbell, rdev->doorbell.used);
380 * Writeback is the the method by which the the GPU updates special pages
381 * in memory with the status of certain GPU events (fences, ring pointers,
386 * radeon_wb_disable - Disable Writeback
388 * @rdev: radeon_device pointer
390 * Disables Writeback (all asics). Used for suspend.
392 void radeon_wb_disable(struct radeon_device *rdev)
394 rdev->wb.enabled = false;
398 * radeon_wb_fini - Disable Writeback and free memory
400 * @rdev: radeon_device pointer
402 * Disables Writeback and frees the Writeback memory (all asics).
403 * Used at driver shutdown.
405 void radeon_wb_fini(struct radeon_device *rdev)
407 radeon_wb_disable(rdev);
408 if (rdev->wb.wb_obj) {
409 if (!radeon_bo_reserve(rdev->wb.wb_obj, false)) {
410 radeon_bo_kunmap(rdev->wb.wb_obj);
411 radeon_bo_unpin(rdev->wb.wb_obj);
412 radeon_bo_unreserve(rdev->wb.wb_obj);
414 radeon_bo_unref(&rdev->wb.wb_obj);
416 rdev->wb.wb_obj = NULL;
421 * radeon_wb_init- Init Writeback driver info and allocate memory
423 * @rdev: radeon_device pointer
425 * Disables Writeback and frees the Writeback memory (all asics).
426 * Used at driver startup.
427 * Returns 0 on success or an -error on failure.
429 int radeon_wb_init(struct radeon_device *rdev)
434 if (rdev->wb.wb_obj == NULL) {
435 r = radeon_bo_create(rdev, RADEON_GPU_PAGE_SIZE, PAGE_SIZE, true,
436 RADEON_GEM_DOMAIN_GTT, 0, NULL,
439 dev_warn(rdev->dev, "(%d) create WB bo failed\n", r);
442 r = radeon_bo_reserve(rdev->wb.wb_obj, false);
443 if (unlikely(r != 0)) {
444 radeon_wb_fini(rdev);
447 r = radeon_bo_pin(rdev->wb.wb_obj, RADEON_GEM_DOMAIN_GTT,
450 radeon_bo_unreserve(rdev->wb.wb_obj);
451 dev_warn(rdev->dev, "(%d) pin WB bo failed\n", r);
452 radeon_wb_fini(rdev);
455 wb_ptr = &rdev->wb.wb;
456 r = radeon_bo_kmap(rdev->wb.wb_obj, wb_ptr);
457 radeon_bo_unreserve(rdev->wb.wb_obj);
459 dev_warn(rdev->dev, "(%d) map WB bo failed\n", r);
460 radeon_wb_fini(rdev);
463 /* clear wb memory */
464 memset(*(void **)wb_ptr, 0, RADEON_GPU_PAGE_SIZE);
467 /* disable event_write fences */
468 rdev->wb.use_event = false;
469 /* disabled via module param */
470 if (radeon_no_wb == 1) {
471 rdev->wb.enabled = false;
473 if (rdev->flags & RADEON_IS_AGP) {
474 /* often unreliable on AGP */
475 rdev->wb.enabled = false;
476 } else if (rdev->family < CHIP_R300) {
477 /* often unreliable on pre-r300 */
478 rdev->wb.enabled = false;
480 rdev->wb.enabled = true;
481 /* event_write fences are only available on r600+ */
482 if (rdev->family >= CHIP_R600) {
483 rdev->wb.use_event = true;
487 /* always use writeback/events on NI, APUs */
488 if (rdev->family >= CHIP_PALM) {
489 rdev->wb.enabled = true;
490 rdev->wb.use_event = true;
493 dev_info(rdev->dev, "WB %sabled\n", rdev->wb.enabled ? "en" : "dis");
499 * radeon_vram_location - try to find VRAM location
500 * @rdev: radeon device structure holding all necessary informations
501 * @mc: memory controller structure holding memory informations
502 * @base: base address at which to put VRAM
504 * Function will place try to place VRAM at base address provided
505 * as parameter (which is so far either PCI aperture address or
506 * for IGP TOM base address).
508 * If there is not enough space to fit the unvisible VRAM in the 32bits
509 * address space then we limit the VRAM size to the aperture.
511 * If we are using AGP and if the AGP aperture doesn't allow us to have
512 * room for all the VRAM than we restrict the VRAM to the PCI aperture
513 * size and print a warning.
515 * This function will never fails, worst case are limiting VRAM.
517 * Note: GTT start, end, size should be initialized before calling this
518 * function on AGP platform.
520 * Note: We don't explicitly enforce VRAM start to be aligned on VRAM size,
521 * this shouldn't be a problem as we are using the PCI aperture as a reference.
522 * Otherwise this would be needed for rv280, all r3xx, and all r4xx, but
525 * Note: we use mc_vram_size as on some board we need to program the mc to
526 * cover the whole aperture even if VRAM size is inferior to aperture size
527 * Novell bug 204882 + along with lots of ubuntu ones
529 * Note: when limiting vram it's safe to overwritte real_vram_size because
530 * we are not in case where real_vram_size is inferior to mc_vram_size (ie
531 * note afected by bogus hw of Novell bug 204882 + along with lots of ubuntu
534 * Note: IGP TOM addr should be the same as the aperture addr, we don't
535 * explicitly check for that thought.
537 * FIXME: when reducing VRAM size align new size on power of 2.
539 void radeon_vram_location(struct radeon_device *rdev, struct radeon_mc *mc, u64 base)
541 uint64_t limit = (uint64_t)radeon_vram_limit << 20;
543 mc->vram_start = base;
544 if (mc->mc_vram_size > (rdev->mc.mc_mask - base + 1)) {
545 dev_warn(rdev->dev, "limiting VRAM to PCI aperture size\n");
546 mc->real_vram_size = mc->aper_size;
547 mc->mc_vram_size = mc->aper_size;
549 mc->vram_end = mc->vram_start + mc->mc_vram_size - 1;
550 if (rdev->flags & RADEON_IS_AGP && mc->vram_end > mc->gtt_start && mc->vram_start <= mc->gtt_end) {
551 dev_warn(rdev->dev, "limiting VRAM to PCI aperture size\n");
552 mc->real_vram_size = mc->aper_size;
553 mc->mc_vram_size = mc->aper_size;
555 mc->vram_end = mc->vram_start + mc->mc_vram_size - 1;
556 if (limit && limit < mc->real_vram_size)
557 mc->real_vram_size = limit;
558 dev_info(rdev->dev, "VRAM: %juM 0x%016jX - 0x%016jX (%juM used)\n",
559 mc->mc_vram_size >> 20, mc->vram_start,
560 mc->vram_end, mc->real_vram_size >> 20);
564 * radeon_gtt_location - try to find GTT location
565 * @rdev: radeon device structure holding all necessary informations
566 * @mc: memory controller structure holding memory informations
568 * Function will place try to place GTT before or after VRAM.
570 * If GTT size is bigger than space left then we ajust GTT size.
571 * Thus function will never fails.
573 * FIXME: when reducing GTT size align new size on power of 2.
575 void radeon_gtt_location(struct radeon_device *rdev, struct radeon_mc *mc)
577 u64 size_af, size_bf;
579 size_af = ((rdev->mc.mc_mask - mc->vram_end) + mc->gtt_base_align) & ~mc->gtt_base_align;
580 size_bf = mc->vram_start & ~mc->gtt_base_align;
581 if (size_bf > size_af) {
582 if (mc->gtt_size > size_bf) {
583 dev_warn(rdev->dev, "limiting GTT\n");
584 mc->gtt_size = size_bf;
586 mc->gtt_start = (mc->vram_start & ~mc->gtt_base_align) - mc->gtt_size;
588 if (mc->gtt_size > size_af) {
589 dev_warn(rdev->dev, "limiting GTT\n");
590 mc->gtt_size = size_af;
592 mc->gtt_start = (mc->vram_end + 1 + mc->gtt_base_align) & ~mc->gtt_base_align;
594 mc->gtt_end = mc->gtt_start + mc->gtt_size - 1;
595 dev_info(rdev->dev, "GTT: %juM 0x%016jX - 0x%016jX\n",
596 mc->gtt_size >> 20, mc->gtt_start, mc->gtt_end);
600 * GPU helpers function.
603 * radeon_card_posted - check if the hw has already been initialized
605 * @rdev: radeon_device pointer
607 * Check if the asic has been initialized (all asics).
608 * Used at driver startup.
609 * Returns true if initialized or false if not.
611 bool radeon_card_posted(struct radeon_device *rdev)
616 /* required for EFI mode on macbook2,1 which uses an r5xx asic */
617 if (efi_enabled(EFI_BOOT) &&
618 (rdev->pdev->subsystem_vendor == PCI_VENDOR_ID_APPLE) &&
619 (rdev->family < CHIP_R600))
621 #endif /* DUMBBELL_WIP */
623 if (ASIC_IS_NODCE(rdev))
626 /* first check CRTCs */
627 if (ASIC_IS_DCE4(rdev)) {
628 reg = RREG32(EVERGREEN_CRTC_CONTROL + EVERGREEN_CRTC0_REGISTER_OFFSET) |
629 RREG32(EVERGREEN_CRTC_CONTROL + EVERGREEN_CRTC1_REGISTER_OFFSET);
630 if (rdev->num_crtc >= 4) {
631 reg |= RREG32(EVERGREEN_CRTC_CONTROL + EVERGREEN_CRTC2_REGISTER_OFFSET) |
632 RREG32(EVERGREEN_CRTC_CONTROL + EVERGREEN_CRTC3_REGISTER_OFFSET);
634 if (rdev->num_crtc >= 6) {
635 reg |= RREG32(EVERGREEN_CRTC_CONTROL + EVERGREEN_CRTC4_REGISTER_OFFSET) |
636 RREG32(EVERGREEN_CRTC_CONTROL + EVERGREEN_CRTC5_REGISTER_OFFSET);
638 if (reg & EVERGREEN_CRTC_MASTER_EN)
640 } else if (ASIC_IS_AVIVO(rdev)) {
641 reg = RREG32(AVIVO_D1CRTC_CONTROL) |
642 RREG32(AVIVO_D2CRTC_CONTROL);
643 if (reg & AVIVO_CRTC_EN) {
647 reg = RREG32(RADEON_CRTC_GEN_CNTL) |
648 RREG32(RADEON_CRTC2_GEN_CNTL);
649 if (reg & RADEON_CRTC_EN) {
655 /* then check MEM_SIZE, in case the crtcs are off */
656 if (rdev->family >= CHIP_R600)
657 reg = RREG32(R600_CONFIG_MEMSIZE);
659 reg = RREG32(RADEON_CONFIG_MEMSIZE);
669 * radeon_update_bandwidth_info - update display bandwidth params
671 * @rdev: radeon_device pointer
673 * Used when sclk/mclk are switched or display modes are set.
674 * params are used to calculate display watermarks (all asics)
676 void radeon_update_bandwidth_info(struct radeon_device *rdev)
679 u32 sclk = rdev->pm.current_sclk;
680 u32 mclk = rdev->pm.current_mclk;
682 /* sclk/mclk in Mhz */
683 a.full = dfixed_const(100);
684 rdev->pm.sclk.full = dfixed_const(sclk);
685 rdev->pm.sclk.full = dfixed_div(rdev->pm.sclk, a);
686 rdev->pm.mclk.full = dfixed_const(mclk);
687 rdev->pm.mclk.full = dfixed_div(rdev->pm.mclk, a);
689 if (rdev->flags & RADEON_IS_IGP) {
690 a.full = dfixed_const(16);
691 /* core_bandwidth = sclk(Mhz) * 16 */
692 rdev->pm.core_bandwidth.full = dfixed_div(rdev->pm.sclk, a);
697 * radeon_boot_test_post_card - check and possibly initialize the hw
699 * @rdev: radeon_device pointer
701 * Check if the asic is initialized and if not, attempt to initialize
703 * Returns true if initialized or false if not.
705 bool radeon_boot_test_post_card(struct radeon_device *rdev)
707 if (radeon_card_posted(rdev))
711 DRM_INFO("GPU not posted. posting now...\n");
712 if (rdev->is_atom_bios)
713 atom_asic_init(rdev->mode_info.atom_context);
715 radeon_combios_asic_init(rdev->ddev);
718 dev_err(rdev->dev, "Card not posted and no BIOS - ignoring\n");
724 * radeon_dummy_page_init - init dummy page used by the driver
726 * @rdev: radeon_device pointer
728 * Allocate the dummy page used by the driver (all asics).
729 * This dummy page is used by the driver as a filler for gart entries
730 * when pages are taken out of the GART
731 * Returns 0 on sucess, -ENOMEM on failure.
733 int radeon_dummy_page_init(struct radeon_device *rdev)
735 if (rdev->dummy_page.dmah)
737 rdev->dummy_page.dmah = drm_pci_alloc(rdev->ddev,
738 PAGE_SIZE, PAGE_SIZE);
739 if (rdev->dummy_page.dmah == NULL)
741 rdev->dummy_page.addr =
742 (dma_addr_t)(uintptr_t)rdev->dummy_page.dmah->vaddr;
747 * radeon_dummy_page_fini - free dummy page used by the driver
749 * @rdev: radeon_device pointer
751 * Frees the dummy page used by the driver (all asics).
753 void radeon_dummy_page_fini(struct radeon_device *rdev)
755 if (rdev->dummy_page.dmah == NULL)
757 drm_pci_free(rdev->ddev, rdev->dummy_page.dmah);
758 rdev->dummy_page.dmah = NULL;
759 rdev->dummy_page.addr = 0;
763 /* ATOM accessor methods */
765 * ATOM is an interpreted byte code stored in tables in the vbios. The
766 * driver registers callbacks to access registers and the interpreter
767 * in the driver parses the tables and executes then to program specific
768 * actions (set display modes, asic init, etc.). See radeon_atombios.c,
769 * atombios.h, and atom.c
773 * cail_pll_read - read PLL register
775 * @info: atom card_info pointer
776 * @reg: PLL register offset
778 * Provides a PLL register accessor for the atom interpreter (r4xx+).
779 * Returns the value of the PLL register.
781 static uint32_t cail_pll_read(struct card_info *info, uint32_t reg)
783 struct radeon_device *rdev = info->dev->dev_private;
786 r = rdev->pll_rreg(rdev, reg);
791 * cail_pll_write - write PLL register
793 * @info: atom card_info pointer
794 * @reg: PLL register offset
795 * @val: value to write to the pll register
797 * Provides a PLL register accessor for the atom interpreter (r4xx+).
799 static void cail_pll_write(struct card_info *info, uint32_t reg, uint32_t val)
801 struct radeon_device *rdev = info->dev->dev_private;
803 rdev->pll_wreg(rdev, reg, val);
807 * cail_mc_read - read MC (Memory Controller) register
809 * @info: atom card_info pointer
810 * @reg: MC register offset
812 * Provides an MC register accessor for the atom interpreter (r4xx+).
813 * Returns the value of the MC register.
815 static uint32_t cail_mc_read(struct card_info *info, uint32_t reg)
817 struct radeon_device *rdev = info->dev->dev_private;
820 r = rdev->mc_rreg(rdev, reg);
825 * cail_mc_write - write MC (Memory Controller) register
827 * @info: atom card_info pointer
828 * @reg: MC register offset
829 * @val: value to write to the pll register
831 * Provides a MC register accessor for the atom interpreter (r4xx+).
833 static void cail_mc_write(struct card_info *info, uint32_t reg, uint32_t val)
835 struct radeon_device *rdev = info->dev->dev_private;
837 rdev->mc_wreg(rdev, reg, val);
841 * cail_reg_write - write MMIO register
843 * @info: atom card_info pointer
844 * @reg: MMIO register offset
845 * @val: value to write to the pll register
847 * Provides a MMIO register accessor for the atom interpreter (r4xx+).
849 static void cail_reg_write(struct card_info *info, uint32_t reg, uint32_t val)
851 struct radeon_device *rdev = info->dev->dev_private;
857 * cail_reg_read - read MMIO register
859 * @info: atom card_info pointer
860 * @reg: MMIO register offset
862 * Provides an MMIO register accessor for the atom interpreter (r4xx+).
863 * Returns the value of the MMIO register.
865 static uint32_t cail_reg_read(struct card_info *info, uint32_t reg)
867 struct radeon_device *rdev = info->dev->dev_private;
875 * cail_ioreg_write - write IO register
877 * @info: atom card_info pointer
878 * @reg: IO register offset
879 * @val: value to write to the pll register
881 * Provides a IO register accessor for the atom interpreter (r4xx+).
883 static void cail_ioreg_write(struct card_info *info, uint32_t reg, uint32_t val)
885 struct radeon_device *rdev = info->dev->dev_private;
887 WREG32_IO(reg*4, val);
891 * cail_ioreg_read - read IO register
893 * @info: atom card_info pointer
894 * @reg: IO register offset
896 * Provides an IO register accessor for the atom interpreter (r4xx+).
897 * Returns the value of the IO register.
899 static uint32_t cail_ioreg_read(struct card_info *info, uint32_t reg)
901 struct radeon_device *rdev = info->dev->dev_private;
904 r = RREG32_IO(reg*4);
909 * radeon_atombios_init - init the driver info and callbacks for atombios
911 * @rdev: radeon_device pointer
913 * Initializes the driver info and register access callbacks for the
914 * ATOM interpreter (r4xx+).
915 * Returns 0 on sucess, -ENOMEM on failure.
916 * Called at driver startup.
918 int radeon_atombios_init(struct radeon_device *rdev)
920 struct card_info *atom_card_info =
921 kzalloc(sizeof(struct card_info), GFP_KERNEL);
926 rdev->mode_info.atom_card_info = atom_card_info;
927 atom_card_info->dev = rdev->ddev;
928 atom_card_info->reg_read = cail_reg_read;
929 atom_card_info->reg_write = cail_reg_write;
930 /* needed for iio ops */
932 atom_card_info->ioreg_read = cail_ioreg_read;
933 atom_card_info->ioreg_write = cail_ioreg_write;
935 DRM_ERROR("Unable to find PCI I/O BAR; using MMIO for ATOM IIO\n");
936 atom_card_info->ioreg_read = cail_reg_read;
937 atom_card_info->ioreg_write = cail_reg_write;
939 atom_card_info->mc_read = cail_mc_read;
940 atom_card_info->mc_write = cail_mc_write;
941 atom_card_info->pll_read = cail_pll_read;
942 atom_card_info->pll_write = cail_pll_write;
944 rdev->mode_info.atom_context = atom_parse(atom_card_info, rdev->bios);
945 if (!rdev->mode_info.atom_context) {
946 radeon_atombios_fini(rdev);
950 lockinit(&rdev->mode_info.atom_context->mutex, "rmiacmtx", 0, LK_CANRECURSE);
951 lockinit(&rdev->mode_info.atom_context->scratch_mutex, "rmiacsmtx", 0, LK_CANRECURSE);
952 radeon_atom_initialize_bios_scratch_regs(rdev->ddev);
953 atom_allocate_fb_scratch(rdev->mode_info.atom_context);
958 * radeon_atombios_fini - free the driver info and callbacks for atombios
960 * @rdev: radeon_device pointer
962 * Frees the driver info and register access callbacks for the ATOM
963 * interpreter (r4xx+).
964 * Called at driver shutdown.
966 void radeon_atombios_fini(struct radeon_device *rdev)
968 if (rdev->mode_info.atom_context) {
969 kfree(rdev->mode_info.atom_context->scratch);
971 kfree(rdev->mode_info.atom_context);
972 rdev->mode_info.atom_context = NULL;
973 kfree(rdev->mode_info.atom_card_info);
974 rdev->mode_info.atom_card_info = NULL;
979 * COMBIOS is the bios format prior to ATOM. It provides
980 * command tables similar to ATOM, but doesn't have a unified
981 * parser. See radeon_combios.c
985 * radeon_combios_init - init the driver info for combios
987 * @rdev: radeon_device pointer
989 * Initializes the driver info for combios (r1xx-r3xx).
990 * Returns 0 on sucess.
991 * Called at driver startup.
993 int radeon_combios_init(struct radeon_device *rdev)
995 radeon_combios_initialize_bios_scratch_regs(rdev->ddev);
1000 * radeon_combios_fini - free the driver info for combios
1002 * @rdev: radeon_device pointer
1004 * Frees the driver info for combios (r1xx-r3xx).
1005 * Called at driver shutdown.
1007 void radeon_combios_fini(struct radeon_device *rdev)
1012 /* if we get transitioned to only one device, take VGA back */
1014 * radeon_vga_set_decode - enable/disable vga decode
1016 * @cookie: radeon_device pointer
1017 * @state: enable/disable vga decode
1019 * Enable/disable vga decode (all asics).
1020 * Returns VGA resource flags.
1022 static unsigned int radeon_vga_set_decode(void *cookie, bool state)
1024 struct radeon_device *rdev = cookie;
1025 radeon_vga_set_state(rdev, state);
1027 return VGA_RSRC_LEGACY_IO | VGA_RSRC_LEGACY_MEM |
1028 VGA_RSRC_NORMAL_IO | VGA_RSRC_NORMAL_MEM;
1030 return VGA_RSRC_NORMAL_IO | VGA_RSRC_NORMAL_MEM;
1032 #endif /* DUMBBELL_WIP */
1035 * radeon_check_pot_argument - check that argument is a power of two
1037 * @arg: value to check
1039 * Validates that a certain argument is a power of two (all asics).
1040 * Returns true if argument is valid.
1042 static bool radeon_check_pot_argument(int arg)
1044 return (arg & (arg - 1)) == 0;
1048 * radeon_check_arguments - validate module params
1050 * @rdev: radeon_device pointer
1052 * Validates certain module parameters and updates
1053 * the associated values used by the driver (all asics).
1055 static void radeon_check_arguments(struct radeon_device *rdev)
1057 /* vramlimit must be a power of two */
1058 if (!radeon_check_pot_argument(radeon_vram_limit)) {
1059 dev_warn(rdev->dev, "vram limit (%d) must be a power of 2\n",
1061 radeon_vram_limit = 0;
1064 if (radeon_gart_size == -1) {
1065 /* default to a larger gart size on newer asics */
1066 if (rdev->family >= CHIP_RV770)
1067 radeon_gart_size = 1024;
1069 radeon_gart_size = 512;
1071 /* gtt size must be power of two and greater or equal to 32M */
1072 if (radeon_gart_size < 32) {
1073 dev_warn(rdev->dev, "gart size (%d) too small\n",
1075 if (rdev->family >= CHIP_RV770)
1076 radeon_gart_size = 1024;
1078 radeon_gart_size = 512;
1079 } else if (!radeon_check_pot_argument(radeon_gart_size)) {
1080 dev_warn(rdev->dev, "gart size (%d) must be a power of 2\n",
1082 if (rdev->family >= CHIP_RV770)
1083 radeon_gart_size = 1024;
1085 radeon_gart_size = 512;
1087 rdev->mc.gtt_size = (uint64_t)radeon_gart_size << 20;
1089 /* AGP mode can only be -1, 1, 2, 4, 8 */
1090 switch (radeon_agpmode) {
1099 dev_warn(rdev->dev, "invalid AGP mode %d (valid mode: "
1100 "-1, 0, 1, 2, 4, 8)\n", radeon_agpmode);
1105 if (!radeon_check_pot_argument(radeon_vm_size)) {
1106 dev_warn(rdev->dev, "VM size (%d) must be a power of 2\n",
1111 if (radeon_vm_size < 1) {
1112 dev_warn(rdev->dev, "VM size (%d) to small, min is 1GB\n",
1118 * Max GPUVM size for Cayman, SI and CI are 40 bits.
1120 if (radeon_vm_size > 1024) {
1121 dev_warn(rdev->dev, "VM size (%d) too large, max is 1TB\n",
1126 /* defines number of bits in page table versus page directory,
1127 * a page is 4KB so we have 12 bits offset, minimum 9 bits in the
1128 * page table and the remaining bits are in the page directory */
1129 if (radeon_vm_block_size == -1) {
1131 /* Total bits covered by PD + PTs */
1132 unsigned bits = ilog2(radeon_vm_size) + 18;
1134 /* Make sure the PD is 4K in size up to 8GB address space.
1135 Above that split equal between PD and PTs */
1136 if (radeon_vm_size <= 8)
1137 radeon_vm_block_size = bits - 9;
1139 radeon_vm_block_size = (bits + 3) / 2;
1141 } else if (radeon_vm_block_size < 9) {
1142 dev_warn(rdev->dev, "VM page table size (%d) too small\n",
1143 radeon_vm_block_size);
1144 radeon_vm_block_size = 9;
1147 if (radeon_vm_block_size > 24 ||
1148 (radeon_vm_size * 1024) < (1ull << radeon_vm_block_size)) {
1149 dev_warn(rdev->dev, "VM page table size (%d) too large\n",
1150 radeon_vm_block_size);
1151 radeon_vm_block_size = 9;
1156 * radeon_switcheroo_set_state - set switcheroo state
1158 * @pdev: pci dev pointer
1159 * @state: vga switcheroo state
1161 * Callback for the switcheroo driver. Suspends or resumes the
1162 * the asics before or after it is powered up using ACPI methods.
1165 static void radeon_switcheroo_set_state(struct pci_dev *pdev, enum vga_switcheroo_state state)
1167 struct drm_device *dev = pci_get_drvdata(pdev);
1168 struct radeon_device *rdev = dev->dev_private;
1170 if (radeon_is_px(dev) && state == VGA_SWITCHEROO_OFF)
1173 if (state == VGA_SWITCHEROO_ON) {
1174 unsigned d3_delay = dev->pdev->d3_delay;
1176 printk(KERN_INFO "radeon: switched on\n");
1177 /* don't suspend or resume card normally */
1178 dev->switch_power_state = DRM_SWITCH_POWER_CHANGING;
1180 if (d3_delay < 20 && (rdev->px_quirk_flags & RADEON_PX_QUIRK_LONG_WAKEUP))
1181 dev->pdev->d3_delay = 20;
1183 radeon_resume_kms(dev, true, true);
1185 dev->pdev->d3_delay = d3_delay;
1187 dev->switch_power_state = DRM_SWITCH_POWER_ON;
1188 drm_kms_helper_poll_enable(dev);
1190 printk(KERN_INFO "radeon: switched off\n");
1191 drm_kms_helper_poll_disable(dev);
1192 dev->switch_power_state = DRM_SWITCH_POWER_CHANGING;
1193 radeon_suspend_kms(dev, true, true);
1194 dev->switch_power_state = DRM_SWITCH_POWER_OFF;
1197 #endif /* DUMBBELL_WIP */
1200 * radeon_switcheroo_can_switch - see if switcheroo state can change
1202 * @pdev: pci dev pointer
1204 * Callback for the switcheroo driver. Check of the switcheroo
1205 * state can be changed.
1206 * Returns true if the state can be changed, false if not.
1209 static bool radeon_switcheroo_can_switch(struct pci_dev *pdev)
1211 struct drm_device *dev = pci_get_drvdata(pdev);
1214 * FIXME: open_count is protected by drm_global_mutex but that would lead to
1215 * locking inversion with the driver load path. And the access here is
1216 * completely racy anyway. So don't bother with locking for now.
1218 return dev->open_count == 0;
1221 static const struct vga_switcheroo_client_ops radeon_switcheroo_ops = {
1222 .set_gpu_state = radeon_switcheroo_set_state,
1224 .can_switch = radeon_switcheroo_can_switch,
1226 #endif /* DUMBBELL_WIP */
1229 * radeon_device_init - initialize the driver
1231 * @rdev: radeon_device pointer
1232 * @pdev: drm dev pointer
1233 * @pdev: pci dev pointer
1234 * @flags: driver flags
1236 * Initializes the driver info and hw (all asics).
1237 * Returns 0 for success or an error on failure.
1238 * Called at driver startup.
1240 int radeon_device_init(struct radeon_device *rdev,
1241 struct drm_device *ddev,
1242 struct pci_dev *pdev,
1248 bool runtime = false;
1251 rdev->shutdown = false;
1252 rdev->dev = pdev->dev;
1255 rdev->flags = flags;
1256 rdev->family = flags & RADEON_FAMILY_MASK;
1257 rdev->is_atom_bios = false;
1258 rdev->usec_timeout = RADEON_MAX_USEC_TIMEOUT;
1259 rdev->mc.gtt_size = 512 * 1024 * 1024;
1260 rdev->accel_working = false;
1261 rdev->fictitious_range_registered = false;
1262 /* set up ring ids */
1263 for (i = 0; i < RADEON_NUM_RINGS; i++) {
1264 rdev->ring[i].idx = i;
1267 DRM_INFO("initializing kernel modesetting (%s 0x%04X:0x%04X 0x%04X:0x%04X).\n",
1268 radeon_family_name[rdev->family], pdev->vendor, pdev->device,
1269 pdev->subsystem_vendor, pdev->subsystem_device);
1271 /* mutex initialization are all done here so we
1272 * can recall function without having locking issues */
1273 lockinit(&rdev->ring_lock, "drm__radeon_device__ring_lock", 0,
1275 lockinit(&rdev->dc_hw_i2c_mutex,
1276 "drm__radeon_device__dc_hw_i2c_mutex", 0, LK_CANRECURSE);
1277 atomic_set(&rdev->ih.lock, 0);
1278 spin_init(&rdev->gem.mutex, "radeon_gemmtx");
1279 lockinit(&rdev->pm.mutex, "drm__radeon_device__pm__mutex", 0,
1281 spin_init(&rdev->gpu_clock_mutex, "radeon_clockmtx");
1282 spin_init(&rdev->srbm_mutex, "radeon_srbm_mutex");
1283 lockinit(&rdev->pm.mclk_lock, "drm__radeon_device__pm__mclk_lock", 0,
1285 lockinit(&rdev->exclusive_lock, "drm__radeon_device__exclusive_lock",
1287 init_waitqueue_head(&rdev->irq.vblank_queue);
1288 r = radeon_gem_init(rdev);
1292 radeon_check_arguments(rdev);
1293 /* Adjust VM size here.
1294 * Max GPUVM size for cayman+ is 40 bits.
1296 rdev->vm_manager.max_pfn = radeon_vm_size << 18;
1298 /* Set asic functions */
1299 r = radeon_asic_init(rdev);
1303 /* all of the newer IGP chips have an internal gart
1304 * However some rs4xx report as AGP, so remove that here.
1306 if ((rdev->family >= CHIP_RS400) &&
1307 (rdev->flags & RADEON_IS_IGP)) {
1308 rdev->flags &= ~RADEON_IS_AGP;
1311 if (rdev->flags & RADEON_IS_AGP && radeon_agpmode == -1) {
1312 radeon_agp_disable(rdev);
1315 /* Set the internal MC address mask
1316 * This is the max address of the GPU's
1317 * internal address space.
1319 if (rdev->family >= CHIP_CAYMAN)
1320 rdev->mc.mc_mask = 0xffffffffffULL; /* 40 bit MC */
1321 else if (rdev->family >= CHIP_CEDAR)
1322 rdev->mc.mc_mask = 0xfffffffffULL; /* 36 bit MC */
1324 rdev->mc.mc_mask = 0xffffffffULL; /* 32 bit MC */
1326 /* set DMA mask + need_dma32 flags.
1327 * PCIE - can handle 40-bits.
1328 * IGP - can handle 40-bits
1329 * AGP - generally dma32 is safest
1330 * PCI - dma32 for legacy pci gart, 40 bits on newer asics
1332 rdev->need_dma32 = false;
1333 if (rdev->flags & RADEON_IS_AGP)
1334 rdev->need_dma32 = true;
1335 if ((rdev->flags & RADEON_IS_PCI) &&
1336 (rdev->family <= CHIP_RS740))
1337 rdev->need_dma32 = true;
1339 dma_bits = rdev->need_dma32 ? 32 : 40;
1341 r = pci_set_dma_mask(rdev->pdev, DMA_BIT_MASK(dma_bits));
1343 rdev->need_dma32 = true;
1345 printk(KERN_WARNING "radeon: No suitable DMA available.\n");
1347 r = pci_set_consistent_dma_mask(rdev->pdev, DMA_BIT_MASK(dma_bits));
1349 pci_set_consistent_dma_mask(rdev->pdev, DMA_BIT_MASK(32));
1350 printk(KERN_WARNING "radeon: No coherent DMA available.\n");
1352 #endif /* DUMBBELL_WIP */
1354 /* Registers mapping */
1355 /* TODO: block userspace mapping of io register */
1356 spin_init(&rdev->mmio_idx_lock, "radeon_mpio");
1357 spin_init(&rdev->smc_idx_lock, "radeon_smc");
1358 spin_init(&rdev->pll_idx_lock, "radeon_pll");
1359 spin_init(&rdev->mc_idx_lock, "radeon_mc");
1360 spin_init(&rdev->pcie_idx_lock, "radeon_pcie");
1361 spin_init(&rdev->pciep_idx_lock, "radeon_pciep");
1362 spin_init(&rdev->pif_idx_lock, "radeon_pif");
1363 spin_init(&rdev->cg_idx_lock, "radeon_cg");
1364 spin_init(&rdev->uvd_idx_lock, "radeon_uvd");
1365 spin_init(&rdev->rcu_idx_lock, "radeon_rcu");
1366 spin_init(&rdev->didt_idx_lock, "radeon_didt");
1367 spin_init(&rdev->end_idx_lock, "radeon_end");
1368 if (rdev->family >= CHIP_BONAIRE) {
1369 rdev->rmmio_rid = PCIR_BAR(5);
1371 rdev->rmmio_rid = PCIR_BAR(2);
1373 rdev->rmmio = bus_alloc_resource_any(rdev->dev, SYS_RES_MEMORY,
1374 &rdev->rmmio_rid, RF_ACTIVE | RF_SHAREABLE);
1375 if (rdev->rmmio == NULL) {
1378 rdev->rmmio_base = rman_get_start(rdev->rmmio);
1379 rdev->rmmio_size = rman_get_size(rdev->rmmio);
1380 DRM_INFO("register mmio base: 0x%08X\n", (uint32_t)rdev->rmmio_base);
1381 DRM_INFO("register mmio size: %u\n", (unsigned)rdev->rmmio_size);
1383 /* doorbell bar mapping */
1384 if (rdev->family >= CHIP_BONAIRE)
1385 radeon_doorbell_init(rdev);
1387 /* io port mapping */
1388 for (i = 0; i < DRM_MAX_PCI_RESOURCE; i++) {
1391 data = pci_read_config(rdev->dev, PCIR_BAR(i), 4);
1392 if (PCI_BAR_IO(data)) {
1393 rdev->rio_rid = PCIR_BAR(i);
1394 rdev->rio_mem = bus_alloc_resource_any(rdev->dev,
1395 SYS_RES_IOPORT, &rdev->rio_rid,
1396 RF_ACTIVE | RF_SHAREABLE);
1400 if (rdev->rio_mem == NULL)
1401 DRM_ERROR("Unable to find PCI I/O BAR\n");
1403 rdev->tq = taskqueue_create("radeonkms", M_WAITOK,
1404 taskqueue_thread_enqueue, &rdev->tq);
1405 taskqueue_start_threads(&rdev->tq, 1, 0, -1, "radeon taskq");
1407 if (rdev->flags & RADEON_IS_PX)
1408 radeon_device_handle_px_quirks(rdev);
1411 /* if we have > 1 VGA cards, then disable the radeon VGA resources */
1412 /* this will fail for cards that aren't VGA class devices, just
1414 vga_client_register(rdev->pdev, rdev, NULL, radeon_vga_set_decode);
1417 if (rdev->flags & RADEON_IS_PX)
1419 vga_switcheroo_register_client(rdev->pdev, &radeon_switcheroo_ops, runtime);
1421 vga_switcheroo_init_domain_pm_ops(rdev->dev, &rdev->vga_pm_domain);
1423 #endif /* DUMBBELL_WIP */
1425 r = radeon_init(rdev);
1429 r = radeon_gem_debugfs_init(rdev);
1431 DRM_ERROR("registering gem debugfs failed (%d).\n", r);
1434 if (rdev->flags & RADEON_IS_AGP && !rdev->accel_working) {
1435 /* Acceleration not working on AGP card try again
1436 * with fallback to PCI or PCIE GART
1438 radeon_asic_reset(rdev);
1440 radeon_agp_disable(rdev);
1441 r = radeon_init(rdev);
1446 r = radeon_ib_ring_tests(rdev);
1448 DRM_ERROR("ib ring test failed (%d).\n", r);
1450 DRM_INFO("%s: Taking over the fictitious range 0x%jx-0x%jx\n",
1451 __func__, (uintmax_t)rdev->mc.aper_base,
1452 (uintmax_t)rdev->mc.aper_base + rdev->mc.visible_vram_size);
1453 r = vm_phys_fictitious_reg_range(
1455 rdev->mc.aper_base + rdev->mc.visible_vram_size,
1456 VM_MEMATTR_WRITE_COMBINING);
1458 DRM_ERROR("Failed to register fictitious range "
1459 "0x%jx-0x%jx (%d).\n", (uintmax_t)rdev->mc.aper_base,
1460 (uintmax_t)rdev->mc.aper_base + rdev->mc.visible_vram_size, r);
1463 rdev->fictitious_range_registered = true;
1465 if ((radeon_testing & 1)) {
1466 if (rdev->accel_working)
1467 radeon_test_moves(rdev);
1469 DRM_INFO("radeon: acceleration disabled, skipping move tests\n");
1471 if ((radeon_testing & 2)) {
1472 if (rdev->accel_working)
1473 radeon_test_syncing(rdev);
1475 DRM_INFO("radeon: acceleration disabled, skipping sync tests\n");
1477 if (radeon_benchmarking) {
1478 if (rdev->accel_working)
1479 radeon_benchmark(rdev, radeon_benchmarking);
1481 DRM_INFO("radeon: acceleration disabled, skipping benchmarks\n");
1488 vga_switcheroo_fini_domain_pm_ops(rdev->dev);
1494 static void radeon_debugfs_remove_files(struct radeon_device *rdev);
1495 #endif /* DUMBBELL_WIP */
1498 * radeon_device_fini - tear down the driver
1500 * @rdev: radeon_device pointer
1502 * Tear down the driver info (all asics).
1503 * Called at driver shutdown.
1505 void radeon_device_fini(struct radeon_device *rdev)
1507 DRM_INFO("radeon: finishing device.\n");
1508 rdev->shutdown = true;
1509 /* evict vram memory */
1510 radeon_bo_evict_vram(rdev);
1512 if (rdev->fictitious_range_registered) {
1513 vm_phys_fictitious_unreg_range(
1515 rdev->mc.aper_base + rdev->mc.visible_vram_size);
1520 vga_switcheroo_unregister_client(rdev->pdev);
1521 if (rdev->flags & RADEON_IS_PX)
1522 vga_switcheroo_fini_domain_pm_ops(rdev->dev);
1523 vga_client_register(rdev->pdev, NULL, NULL, NULL);
1524 #endif /* DUMBBELL_WIP */
1526 if (rdev->tq != NULL) {
1527 taskqueue_free(rdev->tq);
1532 bus_release_resource(rdev->dev, SYS_RES_IOPORT, rdev->rio_rid,
1534 rdev->rio_mem = NULL;
1535 bus_release_resource(rdev->dev, SYS_RES_MEMORY, rdev->rmmio_rid,
1538 if (rdev->family >= CHIP_BONAIRE)
1539 radeon_doorbell_fini(rdev);
1541 radeon_debugfs_remove_files(rdev);
1542 #endif /* DUMBBELL_WIP */
1550 * radeon_suspend_kms - initiate device suspend
1552 * @pdev: drm dev pointer
1553 * @state: suspend state
1555 * Puts the hw in the suspend state (all asics).
1556 * Returns 0 for success or an error on failure.
1557 * Called at driver suspend.
1559 int radeon_suspend_kms(struct drm_device *dev, bool suspend, bool fbcon)
1561 struct radeon_device *rdev;
1562 struct drm_crtc *crtc;
1563 struct drm_connector *connector;
1566 if (dev == NULL || dev->dev_private == NULL) {
1570 rdev = dev->dev_private;
1572 if (dev->switch_power_state == DRM_SWITCH_POWER_OFF)
1575 drm_kms_helper_poll_disable(dev);
1577 /* turn off display hw */
1578 list_for_each_entry(connector, &dev->mode_config.connector_list, head) {
1579 drm_helper_connector_dpms(connector, DRM_MODE_DPMS_OFF);
1582 /* unpin the front buffers */
1583 list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) {
1584 struct radeon_framebuffer *rfb = to_radeon_framebuffer(crtc->primary->fb);
1585 struct radeon_bo *robj;
1587 if (rfb == NULL || rfb->obj == NULL) {
1590 robj = gem_to_radeon_bo(rfb->obj);
1591 /* don't unpin kernel fb objects */
1592 if (!radeon_fbdev_robj_is_fb(rdev, robj)) {
1593 r = radeon_bo_reserve(robj, false);
1595 radeon_bo_unpin(robj);
1596 radeon_bo_unreserve(robj);
1600 /* evict vram memory */
1601 radeon_bo_evict_vram(rdev);
1603 /* wait for gpu to finish processing current batch */
1604 for (i = 0; i < RADEON_NUM_RINGS; i++) {
1605 r = radeon_fence_wait_empty(rdev, i);
1607 /* delay GPU reset to resume */
1608 radeon_fence_driver_force_completion(rdev, i);
1612 radeon_save_bios_scratch_regs(rdev);
1614 radeon_suspend(rdev);
1615 radeon_hpd_fini(rdev);
1616 /* evict remaining vram memory */
1617 radeon_bo_evict_vram(rdev);
1619 radeon_agp_suspend(rdev);
1621 pci_save_state(device_get_parent(rdev->dev));
1624 /* Shut down the device */
1625 pci_disable_device(dev->pdev);
1626 #endif /* DUMBBELL_WIP */
1627 pci_set_powerstate(dev->dev, PCI_POWERSTATE_D3);
1634 #endif /* DUMBBELL_WIP */
1635 radeon_fbdev_set_suspend(rdev, 1);
1638 #endif /* DUMBBELL_WIP */
1644 * radeon_resume_kms - initiate device resume
1646 * @pdev: drm dev pointer
1648 * Bring the hw back to operating state (all asics).
1649 * Returns 0 for success or an error on failure.
1650 * Called at driver resume.
1652 int radeon_resume_kms(struct drm_device *dev, bool resume, bool fbcon)
1654 struct drm_connector *connector;
1655 struct radeon_device *rdev = dev->dev_private;
1658 if (dev->switch_power_state == DRM_SWITCH_POWER_OFF)
1665 #endif /* DUMBBELL_WIP */
1667 pci_set_powerstate(dev->dev, PCI_POWERSTATE_D0);
1668 pci_restore_state(device_get_parent(rdev->dev));
1670 if (pci_enable_device(dev->pdev)) {
1675 #endif /* DUMBBELL_WIP */
1677 /* resume AGP if in use */
1678 radeon_agp_resume(rdev);
1679 radeon_resume(rdev);
1681 r = radeon_ib_ring_tests(rdev);
1683 DRM_ERROR("ib ring test failed (%d).\n", r);
1685 if ((rdev->pm.pm_method == PM_METHOD_DPM) && rdev->pm.dpm_enabled) {
1686 /* do dpm late init */
1687 r = radeon_pm_late_init(rdev);
1689 rdev->pm.dpm_enabled = false;
1690 DRM_ERROR("radeon_pm_late_init failed, disabling dpm\n");
1693 /* resume old pm late */
1694 radeon_pm_resume(rdev);
1697 radeon_restore_bios_scratch_regs(rdev);
1699 /* init dig PHYs, disp eng pll */
1700 if (rdev->is_atom_bios) {
1701 radeon_atom_encoder_init(rdev);
1702 radeon_atom_disp_eng_pll_init(rdev);
1703 /* turn on the BL */
1704 if (rdev->mode_info.bl_encoder) {
1705 u8 bl_level = radeon_get_backlight_level(rdev,
1706 rdev->mode_info.bl_encoder);
1707 radeon_set_backlight_level(rdev, rdev->mode_info.bl_encoder,
1711 /* reset hpd state */
1712 radeon_hpd_init(rdev);
1713 /* blat the mode back in */
1715 drm_helper_resume_force_mode(dev);
1716 /* turn on display hw */
1717 list_for_each_entry(connector, &dev->mode_config.connector_list, head) {
1718 drm_helper_connector_dpms(connector, DRM_MODE_DPMS_ON);
1722 drm_kms_helper_poll_enable(dev);
1724 /* set the power state here in case we are a PX system or headless */
1725 if ((rdev->pm.pm_method == PM_METHOD_DPM) && rdev->pm.dpm_enabled)
1726 radeon_pm_compute_clocks(rdev);
1729 radeon_fbdev_set_suspend(rdev, 0);
1732 #endif /* DUMBBELL_WIP */
1739 * radeon_gpu_reset - reset the asic
1741 * @rdev: radeon device pointer
1743 * Attempt the reset the GPU if it has hung (all asics).
1744 * Returns 0 for success or an error on failure.
1746 int radeon_gpu_reset(struct radeon_device *rdev)
1748 unsigned ring_sizes[RADEON_NUM_RINGS];
1749 uint32_t *ring_data[RADEON_NUM_RINGS];
1756 lockmgr(&rdev->exclusive_lock, LK_EXCLUSIVE);
1758 if (!rdev->needs_reset) {
1759 lockmgr(&rdev->exclusive_lock, LK_RELEASE);
1763 radeon_save_bios_scratch_regs(rdev);
1765 resched = ttm_bo_lock_delayed_workqueue(&rdev->mman.bdev);
1766 radeon_suspend(rdev);
1767 radeon_hpd_fini(rdev);
1769 for (i = 0; i < RADEON_NUM_RINGS; ++i) {
1770 ring_sizes[i] = radeon_ring_backup(rdev, &rdev->ring[i],
1772 if (ring_sizes[i]) {
1774 dev_info(rdev->dev, "Saved %d dwords of commands "
1775 "on ring %d.\n", ring_sizes[i], i);
1779 r = radeon_asic_reset(rdev);
1781 dev_info(rdev->dev, "GPU reset succeeded, trying to resume\n");
1782 radeon_resume(rdev);
1785 radeon_restore_bios_scratch_regs(rdev);
1787 for (i = 0; i < RADEON_NUM_RINGS; ++i) {
1788 if (!r && ring_data[i]) {
1789 radeon_ring_restore(rdev, &rdev->ring[i],
1790 ring_sizes[i], ring_data[i]);
1792 radeon_fence_driver_force_completion(rdev, i);
1793 kfree(ring_data[i]);
1797 if ((rdev->pm.pm_method == PM_METHOD_DPM) && rdev->pm.dpm_enabled) {
1798 /* do dpm late init */
1799 r = radeon_pm_late_init(rdev);
1801 rdev->pm.dpm_enabled = false;
1802 DRM_ERROR("radeon_pm_late_init failed, disabling dpm\n");
1805 /* resume old pm late */
1806 radeon_pm_resume(rdev);
1809 /* init dig PHYs, disp eng pll */
1810 if (rdev->is_atom_bios) {
1811 radeon_atom_encoder_init(rdev);
1812 radeon_atom_disp_eng_pll_init(rdev);
1813 /* turn on the BL */
1814 if (rdev->mode_info.bl_encoder) {
1815 u8 bl_level = radeon_get_backlight_level(rdev,
1816 rdev->mode_info.bl_encoder);
1817 radeon_set_backlight_level(rdev, rdev->mode_info.bl_encoder,
1821 /* reset hpd state */
1822 radeon_hpd_init(rdev);
1824 ttm_bo_unlock_delayed_workqueue(&rdev->mman.bdev, resched);
1826 rdev->in_reset = true;
1827 rdev->needs_reset = false;
1830 downgrade_write(&rdev->exclusive_lock);
1833 drm_helper_resume_force_mode(rdev->ddev);
1835 /* set the power state here in case we are a PX system or headless */
1836 if ((rdev->pm.pm_method == PM_METHOD_DPM) && rdev->pm.dpm_enabled)
1837 radeon_pm_compute_clocks(rdev);
1840 r = radeon_ib_ring_tests(rdev);
1844 /* bad news, how to tell it to userspace ? */
1845 dev_info(rdev->dev, "GPU reset failed\n");
1848 rdev->needs_reset = r == -EAGAIN;
1849 rdev->in_reset = false;
1851 lockmgr(&rdev->exclusive_lock, LK_RELEASE);
1860 int radeon_debugfs_add_files(struct radeon_device *rdev,
1861 struct drm_info_list *files,
1866 for (i = 0; i < rdev->debugfs_count; i++) {
1867 if (rdev->debugfs[i].files == files) {
1868 /* Already registered */
1873 i = rdev->debugfs_count + 1;
1874 if (i > RADEON_DEBUGFS_MAX_COMPONENTS) {
1875 DRM_ERROR("Reached maximum number of debugfs components.\n");
1876 DRM_ERROR("Report so we increase "
1877 "RADEON_DEBUGFS_MAX_COMPONENTS.\n");
1880 rdev->debugfs[rdev->debugfs_count].files = files;
1881 rdev->debugfs[rdev->debugfs_count].num_files = nfiles;
1882 rdev->debugfs_count = i;
1883 #if defined(CONFIG_DEBUG_FS)
1884 drm_debugfs_create_files(files, nfiles,
1885 rdev->ddev->control->debugfs_root,
1886 rdev->ddev->control);
1887 drm_debugfs_create_files(files, nfiles,
1888 rdev->ddev->primary->debugfs_root,
1889 rdev->ddev->primary);
1894 static void radeon_debugfs_remove_files(struct radeon_device *rdev)
1896 #if defined(CONFIG_DEBUG_FS)
1899 for (i = 0; i < rdev->debugfs_count; i++) {
1900 drm_debugfs_remove_files(rdev->debugfs[i].files,
1901 rdev->debugfs[i].num_files,
1902 rdev->ddev->control);
1903 drm_debugfs_remove_files(rdev->debugfs[i].files,
1904 rdev->debugfs[i].num_files,
1905 rdev->ddev->primary);
1910 #if defined(CONFIG_DEBUG_FS)
1911 int radeon_debugfs_init(struct drm_minor *minor)
1916 void radeon_debugfs_cleanup(struct drm_minor *minor)
1919 #endif /* DUMBBELL_WIP */