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_legacy.h" /* for drm_dma_handle_t */
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 "radeon_reg.h"
39 #include <asm/cpufeature.h>
41 static const char radeon_family_name[][16] = {
107 #if defined(CONFIG_VGA_SWITCHEROO)
108 bool radeon_has_atpx_dgpu_power_cntl(void);
109 bool radeon_is_atpx_hybrid(void);
111 static inline bool radeon_has_atpx_dgpu_power_cntl(void) { return false; }
112 static inline bool radeon_is_atpx_hybrid(void) { return false; }
115 #define RADEON_PX_QUIRK_DISABLE_PX (1 << 0)
116 #define RADEON_PX_QUIRK_LONG_WAKEUP (1 << 1)
118 struct radeon_px_quirk {
126 static struct radeon_px_quirk radeon_px_quirk_list[] = {
127 /* Acer aspire 5560g (CPU: AMD A4-3305M; GPU: AMD Radeon HD 6480g + 7470m)
128 * https://bugzilla.kernel.org/show_bug.cgi?id=74551
130 { PCI_VENDOR_ID_ATI, 0x6760, 0x1025, 0x0672, RADEON_PX_QUIRK_DISABLE_PX },
131 /* Asus K73TA laptop with AMD A6-3400M APU and Radeon 6550 GPU
132 * https://bugzilla.kernel.org/show_bug.cgi?id=51381
134 { PCI_VENDOR_ID_ATI, 0x6741, 0x1043, 0x108c, RADEON_PX_QUIRK_DISABLE_PX },
135 /* Asus K53TK laptop with AMD A6-3420M APU and Radeon 7670m GPU
136 * https://bugzilla.kernel.org/show_bug.cgi?id=51381
138 { PCI_VENDOR_ID_ATI, 0x6840, 0x1043, 0x2122, RADEON_PX_QUIRK_DISABLE_PX },
139 /* Asus K53TK laptop with AMD A6-3420M APU and Radeon 7670m GPU
140 * https://bugs.freedesktop.org/show_bug.cgi?id=101491
142 { PCI_VENDOR_ID_ATI, 0x6741, 0x1043, 0x2122, RADEON_PX_QUIRK_DISABLE_PX },
143 /* macbook pro 8.2 */
144 { PCI_VENDOR_ID_ATI, 0x6741, PCI_VENDOR_ID_APPLE, 0x00e2, RADEON_PX_QUIRK_LONG_WAKEUP },
148 bool radeon_is_px(struct drm_device *dev)
150 struct radeon_device *rdev = dev->dev_private;
152 if (rdev->flags & RADEON_IS_PX)
157 static void radeon_device_handle_px_quirks(struct radeon_device *rdev)
159 struct radeon_px_quirk *p = radeon_px_quirk_list;
161 /* Apply PX quirks */
162 while (p && p->chip_device != 0) {
163 if (rdev->pdev->vendor == p->chip_vendor &&
164 rdev->pdev->device == p->chip_device &&
165 rdev->pdev->subsystem_vendor == p->subsys_vendor &&
166 rdev->pdev->subsystem_device == p->subsys_device) {
167 rdev->px_quirk_flags = p->px_quirk_flags;
173 if (rdev->px_quirk_flags & RADEON_PX_QUIRK_DISABLE_PX)
174 rdev->flags &= ~RADEON_IS_PX;
176 /* disable PX is the system doesn't support dGPU power control or hybrid gfx */
177 if (!radeon_is_atpx_hybrid() &&
178 !radeon_has_atpx_dgpu_power_cntl())
179 rdev->flags &= ~RADEON_IS_PX;
183 * radeon_program_register_sequence - program an array of registers.
185 * @rdev: radeon_device pointer
186 * @registers: pointer to the register array
187 * @array_size: size of the register array
189 * Programs an array or registers with and and or masks.
190 * This is a helper for setting golden registers.
192 void radeon_program_register_sequence(struct radeon_device *rdev,
193 const u32 *registers,
194 const u32 array_size)
196 u32 tmp, reg, and_mask, or_mask;
202 for (i = 0; i < array_size; i +=3) {
203 reg = registers[i + 0];
204 and_mask = registers[i + 1];
205 or_mask = registers[i + 2];
207 if (and_mask == 0xffffffff) {
218 void radeon_pci_config_reset(struct radeon_device *rdev)
220 pci_write_config_dword(rdev->pdev, 0x7c, RADEON_ASIC_RESET_DATA);
224 * radeon_surface_init - Clear GPU surface registers.
226 * @rdev: radeon_device pointer
228 * Clear GPU surface registers (r1xx-r5xx).
230 void radeon_surface_init(struct radeon_device *rdev)
232 /* FIXME: check this out */
233 if (rdev->family < CHIP_R600) {
236 for (i = 0; i < RADEON_GEM_MAX_SURFACES; i++) {
237 if (rdev->surface_regs[i].bo)
238 radeon_bo_get_surface_reg(rdev->surface_regs[i].bo);
240 radeon_clear_surface_reg(rdev, i);
242 /* enable surfaces */
243 WREG32(RADEON_SURFACE_CNTL, 0);
248 * GPU scratch registers helpers function.
251 * radeon_scratch_init - Init scratch register driver information.
253 * @rdev: radeon_device pointer
255 * Init CP scratch register driver information (r1xx-r5xx)
257 void radeon_scratch_init(struct radeon_device *rdev)
261 /* FIXME: check this out */
262 if (rdev->family < CHIP_R300) {
263 rdev->scratch.num_reg = 5;
265 rdev->scratch.num_reg = 7;
267 rdev->scratch.reg_base = RADEON_SCRATCH_REG0;
268 for (i = 0; i < rdev->scratch.num_reg; i++) {
269 rdev->scratch.free[i] = true;
270 rdev->scratch.reg[i] = rdev->scratch.reg_base + (i * 4);
275 * radeon_scratch_get - Allocate a scratch register
277 * @rdev: radeon_device pointer
278 * @reg: scratch register mmio offset
280 * Allocate a CP scratch register for use by the driver (all asics).
281 * Returns 0 on success or -EINVAL on failure.
283 int radeon_scratch_get(struct radeon_device *rdev, uint32_t *reg)
287 for (i = 0; i < rdev->scratch.num_reg; i++) {
288 if (rdev->scratch.free[i]) {
289 rdev->scratch.free[i] = false;
290 *reg = rdev->scratch.reg[i];
298 * radeon_scratch_free - Free a scratch register
300 * @rdev: radeon_device pointer
301 * @reg: scratch register mmio offset
303 * Free a CP scratch register allocated for use by the driver (all asics)
305 void radeon_scratch_free(struct radeon_device *rdev, uint32_t reg)
309 for (i = 0; i < rdev->scratch.num_reg; i++) {
310 if (rdev->scratch.reg[i] == reg) {
311 rdev->scratch.free[i] = true;
318 * GPU doorbell aperture helpers function.
321 * radeon_doorbell_init - Init doorbell driver information.
323 * @rdev: radeon_device pointer
325 * Init doorbell driver information (CIK)
326 * Returns 0 on success, error on failure.
328 static int radeon_doorbell_init(struct radeon_device *rdev)
330 /* doorbell bar mapping */
331 rdev->doorbell.base = pci_resource_start(rdev->pdev, 2);
332 rdev->doorbell.size = pci_resource_len(rdev->pdev, 2);
334 rdev->doorbell.num_doorbells = min_t(u32, rdev->doorbell.size / sizeof(u32), RADEON_MAX_DOORBELLS);
335 if (rdev->doorbell.num_doorbells == 0)
338 rdev->doorbell.ptr = ioremap(rdev->doorbell.base, rdev->doorbell.num_doorbells * sizeof(u32));
339 if (rdev->doorbell.ptr == NULL) {
342 DRM_INFO("doorbell mmio base: 0x%08X\n", (uint32_t)rdev->doorbell.base);
343 DRM_INFO("doorbell mmio size: %u\n", (unsigned)rdev->doorbell.size);
345 memset(&rdev->doorbell.used, 0, sizeof(rdev->doorbell.used));
351 * radeon_doorbell_fini - Tear down doorbell driver information.
353 * @rdev: radeon_device pointer
355 * Tear down doorbell driver information (CIK)
357 static void radeon_doorbell_fini(struct radeon_device *rdev)
359 iounmap(rdev->doorbell.ptr);
360 rdev->doorbell.ptr = NULL;
364 * radeon_doorbell_get - Allocate a doorbell entry
366 * @rdev: radeon_device pointer
367 * @doorbell: doorbell index
369 * Allocate a doorbell for use by the driver (all asics).
370 * Returns 0 on success or -EINVAL on failure.
372 int radeon_doorbell_get(struct radeon_device *rdev, u32 *doorbell)
374 unsigned long offset = find_first_zero_bit(rdev->doorbell.used, rdev->doorbell.num_doorbells);
375 if (offset < rdev->doorbell.num_doorbells) {
376 __set_bit(offset, rdev->doorbell.used);
385 * radeon_doorbell_free - Free a doorbell entry
387 * @rdev: radeon_device pointer
388 * @doorbell: doorbell index
390 * Free a doorbell allocated for use by the driver (all asics)
392 void radeon_doorbell_free(struct radeon_device *rdev, u32 doorbell)
394 if (doorbell < rdev->doorbell.num_doorbells)
395 __clear_bit(doorbell, rdev->doorbell.used);
399 * radeon_doorbell_get_kfd_info - Report doorbell configuration required to
402 * @rdev: radeon_device pointer
403 * @aperture_base: output returning doorbell aperture base physical address
404 * @aperture_size: output returning doorbell aperture size in bytes
405 * @start_offset: output returning # of doorbell bytes reserved for radeon.
407 * Radeon and the KFD share the doorbell aperture. Radeon sets it up,
408 * takes doorbells required for its own rings and reports the setup to KFD.
409 * Radeon reserved doorbells are at the start of the doorbell aperture.
411 void radeon_doorbell_get_kfd_info(struct radeon_device *rdev,
412 phys_addr_t *aperture_base,
413 size_t *aperture_size,
414 size_t *start_offset)
416 /* The first num_doorbells are used by radeon.
417 * KFD takes whatever's left in the aperture. */
418 if (rdev->doorbell.size > rdev->doorbell.num_doorbells * sizeof(u32)) {
419 *aperture_base = rdev->doorbell.base;
420 *aperture_size = rdev->doorbell.size;
421 *start_offset = rdev->doorbell.num_doorbells * sizeof(u32);
431 * Writeback is the the method by which the the GPU updates special pages
432 * in memory with the status of certain GPU events (fences, ring pointers,
437 * radeon_wb_disable - Disable Writeback
439 * @rdev: radeon_device pointer
441 * Disables Writeback (all asics). Used for suspend.
443 void radeon_wb_disable(struct radeon_device *rdev)
445 rdev->wb.enabled = false;
449 * radeon_wb_fini - Disable Writeback and free memory
451 * @rdev: radeon_device pointer
453 * Disables Writeback and frees the Writeback memory (all asics).
454 * Used at driver shutdown.
456 void radeon_wb_fini(struct radeon_device *rdev)
458 radeon_wb_disable(rdev);
459 if (rdev->wb.wb_obj) {
460 if (!radeon_bo_reserve(rdev->wb.wb_obj, false)) {
461 radeon_bo_kunmap(rdev->wb.wb_obj);
462 radeon_bo_unpin(rdev->wb.wb_obj);
463 radeon_bo_unreserve(rdev->wb.wb_obj);
465 radeon_bo_unref(&rdev->wb.wb_obj);
467 rdev->wb.wb_obj = NULL;
472 * radeon_wb_init- Init Writeback driver info and allocate memory
474 * @rdev: radeon_device pointer
476 * Disables Writeback and frees the Writeback memory (all asics).
477 * Used at driver startup.
478 * Returns 0 on success or an -error on failure.
480 int radeon_wb_init(struct radeon_device *rdev)
485 if (rdev->wb.wb_obj == NULL) {
486 r = radeon_bo_create(rdev, RADEON_GPU_PAGE_SIZE, PAGE_SIZE, true,
487 RADEON_GEM_DOMAIN_GTT, 0, NULL, NULL,
490 dev_warn(rdev->dev, "(%d) create WB bo failed\n", r);
493 r = radeon_bo_reserve(rdev->wb.wb_obj, false);
494 if (unlikely(r != 0)) {
495 radeon_wb_fini(rdev);
498 r = radeon_bo_pin(rdev->wb.wb_obj, RADEON_GEM_DOMAIN_GTT,
499 (u64 *)&rdev->wb.gpu_addr);
501 radeon_bo_unreserve(rdev->wb.wb_obj);
502 dev_warn(rdev->dev, "(%d) pin WB bo failed\n", r);
503 radeon_wb_fini(rdev);
506 wb_ptr = &rdev->wb.wb;
507 r = radeon_bo_kmap(rdev->wb.wb_obj, wb_ptr);
508 radeon_bo_unreserve(rdev->wb.wb_obj);
510 dev_warn(rdev->dev, "(%d) map WB bo failed\n", r);
511 radeon_wb_fini(rdev);
516 /* clear wb memory */
517 memset(*(void **)wb_ptr, 0, RADEON_GPU_PAGE_SIZE);
518 /* disable event_write fences */
519 rdev->wb.use_event = false;
520 /* disabled via module param */
521 if (radeon_no_wb == 1) {
522 rdev->wb.enabled = false;
524 if (rdev->flags & RADEON_IS_AGP) {
525 /* often unreliable on AGP */
526 rdev->wb.enabled = false;
527 } else if (rdev->family < CHIP_R300) {
528 /* often unreliable on pre-r300 */
529 rdev->wb.enabled = false;
531 rdev->wb.enabled = true;
532 /* event_write fences are only available on r600+ */
533 if (rdev->family >= CHIP_R600) {
534 rdev->wb.use_event = true;
538 /* always use writeback/events on NI, APUs */
539 if (rdev->family >= CHIP_PALM) {
540 rdev->wb.enabled = true;
541 rdev->wb.use_event = true;
544 dev_info(rdev->dev, "WB %sabled\n", rdev->wb.enabled ? "en" : "dis");
550 * radeon_vram_location - try to find VRAM location
551 * @rdev: radeon device structure holding all necessary informations
552 * @mc: memory controller structure holding memory informations
553 * @base: base address at which to put VRAM
555 * Function will place try to place VRAM at base address provided
556 * as parameter (which is so far either PCI aperture address or
557 * for IGP TOM base address).
559 * If there is not enough space to fit the unvisible VRAM in the 32bits
560 * address space then we limit the VRAM size to the aperture.
562 * If we are using AGP and if the AGP aperture doesn't allow us to have
563 * room for all the VRAM than we restrict the VRAM to the PCI aperture
564 * size and print a warning.
566 * This function will never fails, worst case are limiting VRAM.
568 * Note: GTT start, end, size should be initialized before calling this
569 * function on AGP platform.
571 * Note: We don't explicitly enforce VRAM start to be aligned on VRAM size,
572 * this shouldn't be a problem as we are using the PCI aperture as a reference.
573 * Otherwise this would be needed for rv280, all r3xx, and all r4xx, but
576 * Note: we use mc_vram_size as on some board we need to program the mc to
577 * cover the whole aperture even if VRAM size is inferior to aperture size
578 * Novell bug 204882 + along with lots of ubuntu ones
580 * Note: when limiting vram it's safe to overwritte real_vram_size because
581 * we are not in case where real_vram_size is inferior to mc_vram_size (ie
582 * note afected by bogus hw of Novell bug 204882 + along with lots of ubuntu
585 * Note: IGP TOM addr should be the same as the aperture addr, we don't
586 * explicitly check for that thought.
588 * FIXME: when reducing VRAM size align new size on power of 2.
590 void radeon_vram_location(struct radeon_device *rdev, struct radeon_mc *mc, u64 base)
592 uint64_t limit = (uint64_t)radeon_vram_limit << 20;
594 mc->vram_start = base;
595 if (mc->mc_vram_size > (rdev->mc.mc_mask - base + 1)) {
596 dev_warn(rdev->dev, "limiting VRAM to PCI aperture size\n");
597 mc->real_vram_size = mc->aper_size;
598 mc->mc_vram_size = mc->aper_size;
600 mc->vram_end = mc->vram_start + mc->mc_vram_size - 1;
601 if (rdev->flags & RADEON_IS_AGP && mc->vram_end > mc->gtt_start && mc->vram_start <= mc->gtt_end) {
602 dev_warn(rdev->dev, "limiting VRAM to PCI aperture size\n");
603 mc->real_vram_size = mc->aper_size;
604 mc->mc_vram_size = mc->aper_size;
606 mc->vram_end = mc->vram_start + mc->mc_vram_size - 1;
607 if (limit && limit < mc->real_vram_size)
608 mc->real_vram_size = limit;
609 dev_info(rdev->dev, "VRAM: %lluM 0x%016llX - 0x%016llX (%lluM used)\n",
610 mc->mc_vram_size >> 20, mc->vram_start,
611 mc->vram_end, mc->real_vram_size >> 20);
615 * radeon_gtt_location - try to find GTT location
616 * @rdev: radeon device structure holding all necessary informations
617 * @mc: memory controller structure holding memory informations
619 * Function will place try to place GTT before or after VRAM.
621 * If GTT size is bigger than space left then we ajust GTT size.
622 * Thus function will never fails.
624 * FIXME: when reducing GTT size align new size on power of 2.
626 void radeon_gtt_location(struct radeon_device *rdev, struct radeon_mc *mc)
628 u64 size_af, size_bf;
630 size_af = ((rdev->mc.mc_mask - mc->vram_end) + mc->gtt_base_align) & ~mc->gtt_base_align;
631 size_bf = mc->vram_start & ~mc->gtt_base_align;
632 if (size_bf > size_af) {
633 if (mc->gtt_size > size_bf) {
634 dev_warn(rdev->dev, "limiting GTT\n");
635 mc->gtt_size = size_bf;
637 mc->gtt_start = (mc->vram_start & ~mc->gtt_base_align) - mc->gtt_size;
639 if (mc->gtt_size > size_af) {
640 dev_warn(rdev->dev, "limiting GTT\n");
641 mc->gtt_size = size_af;
643 mc->gtt_start = (mc->vram_end + 1 + mc->gtt_base_align) & ~mc->gtt_base_align;
645 mc->gtt_end = mc->gtt_start + mc->gtt_size - 1;
646 dev_info(rdev->dev, "GTT: %lluM 0x%016llX - 0x%016llX\n",
647 mc->gtt_size >> 20, mc->gtt_start, mc->gtt_end);
651 * GPU helpers function.
655 * radeon_device_is_virtual - check if we are running is a virtual environment
657 * Check if the asic has been passed through to a VM (all asics).
658 * Used at driver startup.
659 * Returns true if virtual or false if not.
661 bool radeon_device_is_virtual(void);
662 bool radeon_device_is_virtual(void)
665 return boot_cpu_has(X86_FEATURE_HYPERVISOR);
672 * radeon_card_posted - check if the hw has already been initialized
674 * @rdev: radeon_device pointer
676 * Check if the asic has been initialized (all asics).
677 * Used at driver startup.
678 * Returns true if initialized or false if not.
680 bool radeon_card_posted(struct radeon_device *rdev)
684 /* for pass through, always force asic_init for CI */
685 if (rdev->family >= CHIP_BONAIRE &&
686 radeon_device_is_virtual())
690 /* required for EFI mode on macbook2,1 which uses an r5xx asic */
691 if (efi_enabled(EFI_BOOT) &&
692 (rdev->pdev->subsystem_vendor == PCI_VENDOR_ID_APPLE) &&
693 (rdev->family < CHIP_R600))
695 #endif /* DUMBBELL_WIP */
697 if (ASIC_IS_NODCE(rdev))
700 /* first check CRTCs */
701 if (ASIC_IS_DCE4(rdev)) {
702 reg = RREG32(EVERGREEN_CRTC_CONTROL + EVERGREEN_CRTC0_REGISTER_OFFSET) |
703 RREG32(EVERGREEN_CRTC_CONTROL + EVERGREEN_CRTC1_REGISTER_OFFSET);
704 if (rdev->num_crtc >= 4) {
705 reg |= RREG32(EVERGREEN_CRTC_CONTROL + EVERGREEN_CRTC2_REGISTER_OFFSET) |
706 RREG32(EVERGREEN_CRTC_CONTROL + EVERGREEN_CRTC3_REGISTER_OFFSET);
708 if (rdev->num_crtc >= 6) {
709 reg |= RREG32(EVERGREEN_CRTC_CONTROL + EVERGREEN_CRTC4_REGISTER_OFFSET) |
710 RREG32(EVERGREEN_CRTC_CONTROL + EVERGREEN_CRTC5_REGISTER_OFFSET);
712 if (reg & EVERGREEN_CRTC_MASTER_EN)
714 } else if (ASIC_IS_AVIVO(rdev)) {
715 reg = RREG32(AVIVO_D1CRTC_CONTROL) |
716 RREG32(AVIVO_D2CRTC_CONTROL);
717 if (reg & AVIVO_CRTC_EN) {
721 reg = RREG32(RADEON_CRTC_GEN_CNTL) |
722 RREG32(RADEON_CRTC2_GEN_CNTL);
723 if (reg & RADEON_CRTC_EN) {
729 /* then check MEM_SIZE, in case the crtcs are off */
730 if (rdev->family >= CHIP_R600)
731 reg = RREG32(R600_CONFIG_MEMSIZE);
733 reg = RREG32(RADEON_CONFIG_MEMSIZE);
743 * radeon_update_bandwidth_info - update display bandwidth params
745 * @rdev: radeon_device pointer
747 * Used when sclk/mclk are switched or display modes are set.
748 * params are used to calculate display watermarks (all asics)
750 void radeon_update_bandwidth_info(struct radeon_device *rdev)
753 u32 sclk = rdev->pm.current_sclk;
754 u32 mclk = rdev->pm.current_mclk;
756 /* sclk/mclk in Mhz */
757 a.full = dfixed_const(100);
758 rdev->pm.sclk.full = dfixed_const(sclk);
759 rdev->pm.sclk.full = dfixed_div(rdev->pm.sclk, a);
760 rdev->pm.mclk.full = dfixed_const(mclk);
761 rdev->pm.mclk.full = dfixed_div(rdev->pm.mclk, a);
763 if (rdev->flags & RADEON_IS_IGP) {
764 a.full = dfixed_const(16);
765 /* core_bandwidth = sclk(Mhz) * 16 */
766 rdev->pm.core_bandwidth.full = dfixed_div(rdev->pm.sclk, a);
771 * radeon_boot_test_post_card - check and possibly initialize the hw
773 * @rdev: radeon_device pointer
775 * Check if the asic is initialized and if not, attempt to initialize
777 * Returns true if initialized or false if not.
779 bool radeon_boot_test_post_card(struct radeon_device *rdev)
781 if (radeon_card_posted(rdev))
785 DRM_INFO("GPU not posted. posting now...\n");
786 if (rdev->is_atom_bios)
787 atom_asic_init(rdev->mode_info.atom_context);
789 radeon_combios_asic_init(rdev->ddev);
792 dev_err(rdev->dev, "Card not posted and no BIOS - ignoring\n");
798 * radeon_dummy_page_init - init dummy page used by the driver
800 * @rdev: radeon_device pointer
802 * Allocate the dummy page used by the driver (all asics).
803 * This dummy page is used by the driver as a filler for gart entries
804 * when pages are taken out of the GART
805 * Returns 0 on sucess, -ENOMEM on failure.
807 int radeon_dummy_page_init(struct radeon_device *rdev)
809 if (rdev->dummy_page.dmah)
811 rdev->dummy_page.dmah = drm_pci_alloc(rdev->ddev, PAGE_SIZE, PAGE_SIZE);
812 if (rdev->dummy_page.dmah == NULL)
814 rdev->dummy_page.addr = (dma_addr_t)rdev->dummy_page.dmah->busaddr;
819 * radeon_dummy_page_fini - free dummy page used by the driver
821 * @rdev: radeon_device pointer
823 * Frees the dummy page used by the driver (all asics).
825 void radeon_dummy_page_fini(struct radeon_device *rdev)
827 if (rdev->dummy_page.dmah == NULL)
829 drm_pci_free(rdev->ddev, rdev->dummy_page.dmah);
830 rdev->dummy_page.addr = 0;
831 rdev->dummy_page.dmah = NULL;
835 /* ATOM accessor methods */
837 * ATOM is an interpreted byte code stored in tables in the vbios. The
838 * driver registers callbacks to access registers and the interpreter
839 * in the driver parses the tables and executes then to program specific
840 * actions (set display modes, asic init, etc.). See radeon_atombios.c,
841 * atombios.h, and atom.c
845 * cail_pll_read - read PLL register
847 * @info: atom card_info pointer
848 * @reg: PLL register offset
850 * Provides a PLL register accessor for the atom interpreter (r4xx+).
851 * Returns the value of the PLL register.
853 static uint32_t cail_pll_read(struct card_info *info, uint32_t reg)
855 struct radeon_device *rdev = info->dev->dev_private;
858 r = rdev->pll_rreg(rdev, reg);
863 * cail_pll_write - write PLL register
865 * @info: atom card_info pointer
866 * @reg: PLL register offset
867 * @val: value to write to the pll register
869 * Provides a PLL register accessor for the atom interpreter (r4xx+).
871 static void cail_pll_write(struct card_info *info, uint32_t reg, uint32_t val)
873 struct radeon_device *rdev = info->dev->dev_private;
875 rdev->pll_wreg(rdev, reg, val);
879 * cail_mc_read - read MC (Memory Controller) register
881 * @info: atom card_info pointer
882 * @reg: MC register offset
884 * Provides an MC register accessor for the atom interpreter (r4xx+).
885 * Returns the value of the MC register.
887 static uint32_t cail_mc_read(struct card_info *info, uint32_t reg)
889 struct radeon_device *rdev = info->dev->dev_private;
892 r = rdev->mc_rreg(rdev, reg);
897 * cail_mc_write - write MC (Memory Controller) register
899 * @info: atom card_info pointer
900 * @reg: MC register offset
901 * @val: value to write to the pll register
903 * Provides a MC register accessor for the atom interpreter (r4xx+).
905 static void cail_mc_write(struct card_info *info, uint32_t reg, uint32_t val)
907 struct radeon_device *rdev = info->dev->dev_private;
909 rdev->mc_wreg(rdev, reg, val);
913 * cail_reg_write - write MMIO register
915 * @info: atom card_info pointer
916 * @reg: MMIO register offset
917 * @val: value to write to the pll register
919 * Provides a MMIO register accessor for the atom interpreter (r4xx+).
921 static void cail_reg_write(struct card_info *info, uint32_t reg, uint32_t val)
923 struct radeon_device *rdev = info->dev->dev_private;
929 * cail_reg_read - read MMIO register
931 * @info: atom card_info pointer
932 * @reg: MMIO register offset
934 * Provides an MMIO register accessor for the atom interpreter (r4xx+).
935 * Returns the value of the MMIO register.
937 static uint32_t cail_reg_read(struct card_info *info, uint32_t reg)
939 struct radeon_device *rdev = info->dev->dev_private;
947 * cail_ioreg_write - write IO register
949 * @info: atom card_info pointer
950 * @reg: IO register offset
951 * @val: value to write to the pll register
953 * Provides a IO register accessor for the atom interpreter (r4xx+).
955 static void cail_ioreg_write(struct card_info *info, uint32_t reg, uint32_t val)
957 struct radeon_device *rdev = info->dev->dev_private;
959 WREG32_IO(reg*4, val);
963 * cail_ioreg_read - read IO register
965 * @info: atom card_info pointer
966 * @reg: IO register offset
968 * Provides an IO register accessor for the atom interpreter (r4xx+).
969 * Returns the value of the IO register.
971 static uint32_t cail_ioreg_read(struct card_info *info, uint32_t reg)
973 struct radeon_device *rdev = info->dev->dev_private;
976 r = RREG32_IO(reg*4);
981 * radeon_atombios_init - init the driver info and callbacks for atombios
983 * @rdev: radeon_device pointer
985 * Initializes the driver info and register access callbacks for the
986 * ATOM interpreter (r4xx+).
987 * Returns 0 on sucess, -ENOMEM on failure.
988 * Called at driver startup.
990 int radeon_atombios_init(struct radeon_device *rdev)
992 struct card_info *atom_card_info =
993 kzalloc(sizeof(struct card_info), GFP_KERNEL);
998 rdev->mode_info.atom_card_info = atom_card_info;
999 atom_card_info->dev = rdev->ddev;
1000 atom_card_info->reg_read = cail_reg_read;
1001 atom_card_info->reg_write = cail_reg_write;
1002 /* needed for iio ops */
1003 if (rdev->rio_mem) {
1004 atom_card_info->ioreg_read = cail_ioreg_read;
1005 atom_card_info->ioreg_write = cail_ioreg_write;
1007 DRM_ERROR("Unable to find PCI I/O BAR; using MMIO for ATOM IIO\n");
1008 atom_card_info->ioreg_read = cail_reg_read;
1009 atom_card_info->ioreg_write = cail_reg_write;
1011 atom_card_info->mc_read = cail_mc_read;
1012 atom_card_info->mc_write = cail_mc_write;
1013 atom_card_info->pll_read = cail_pll_read;
1014 atom_card_info->pll_write = cail_pll_write;
1016 rdev->mode_info.atom_context = atom_parse(atom_card_info, rdev->bios);
1017 if (!rdev->mode_info.atom_context) {
1018 radeon_atombios_fini(rdev);
1022 lockinit(&rdev->mode_info.atom_context->mutex, "rmiacmtx", 0, LK_CANRECURSE);
1023 lockinit(&rdev->mode_info.atom_context->scratch_mutex, "rmiacsmtx", 0, LK_CANRECURSE);
1024 radeon_atom_initialize_bios_scratch_regs(rdev->ddev);
1025 atom_allocate_fb_scratch(rdev->mode_info.atom_context);
1030 * radeon_atombios_fini - free the driver info and callbacks for atombios
1032 * @rdev: radeon_device pointer
1034 * Frees the driver info and register access callbacks for the ATOM
1035 * interpreter (r4xx+).
1036 * Called at driver shutdown.
1038 void radeon_atombios_fini(struct radeon_device *rdev)
1040 if (rdev->mode_info.atom_context) {
1041 kfree(rdev->mode_info.atom_context->scratch);
1043 kfree(rdev->mode_info.atom_context);
1044 rdev->mode_info.atom_context = NULL;
1045 kfree(rdev->mode_info.atom_card_info);
1046 rdev->mode_info.atom_card_info = NULL;
1051 * COMBIOS is the bios format prior to ATOM. It provides
1052 * command tables similar to ATOM, but doesn't have a unified
1053 * parser. See radeon_combios.c
1057 * radeon_combios_init - init the driver info for combios
1059 * @rdev: radeon_device pointer
1061 * Initializes the driver info for combios (r1xx-r3xx).
1062 * Returns 0 on sucess.
1063 * Called at driver startup.
1065 int radeon_combios_init(struct radeon_device *rdev)
1067 radeon_combios_initialize_bios_scratch_regs(rdev->ddev);
1072 * radeon_combios_fini - free the driver info for combios
1074 * @rdev: radeon_device pointer
1076 * Frees the driver info for combios (r1xx-r3xx).
1077 * Called at driver shutdown.
1079 void radeon_combios_fini(struct radeon_device *rdev)
1084 /* if we get transitioned to only one device, take VGA back */
1086 * radeon_vga_set_decode - enable/disable vga decode
1088 * @cookie: radeon_device pointer
1089 * @state: enable/disable vga decode
1091 * Enable/disable vga decode (all asics).
1092 * Returns VGA resource flags.
1094 static unsigned int radeon_vga_set_decode(void *cookie, bool state)
1096 struct radeon_device *rdev = cookie;
1097 radeon_vga_set_state(rdev, state);
1099 return VGA_RSRC_LEGACY_IO | VGA_RSRC_LEGACY_MEM |
1100 VGA_RSRC_NORMAL_IO | VGA_RSRC_NORMAL_MEM;
1102 return VGA_RSRC_NORMAL_IO | VGA_RSRC_NORMAL_MEM;
1104 #endif /* DUMBBELL_WIP */
1107 * radeon_check_pot_argument - check that argument is a power of two
1109 * @arg: value to check
1111 * Validates that a certain argument is a power of two (all asics).
1112 * Returns true if argument is valid.
1114 static bool radeon_check_pot_argument(int arg)
1116 return (arg & (arg - 1)) == 0;
1120 * Determine a sensible default GART size according to ASIC family.
1122 * @family ASIC family name
1124 static int radeon_gart_size_auto(enum radeon_family family)
1126 /* default to a larger gart size on newer asics */
1127 if (family >= CHIP_TAHITI)
1129 else if (family >= CHIP_RV770)
1136 * radeon_check_arguments - validate module params
1138 * @rdev: radeon_device pointer
1140 * Validates certain module parameters and updates
1141 * the associated values used by the driver (all asics).
1143 static void radeon_check_arguments(struct radeon_device *rdev)
1145 /* vramlimit must be a power of two */
1146 if (!radeon_check_pot_argument(radeon_vram_limit)) {
1147 dev_warn(rdev->dev, "vram limit (%d) must be a power of 2\n",
1149 radeon_vram_limit = 0;
1152 if (radeon_gart_size == -1) {
1153 radeon_gart_size = radeon_gart_size_auto(rdev->family);
1155 /* gtt size must be power of two and greater or equal to 32M */
1156 if (radeon_gart_size < 32) {
1157 dev_warn(rdev->dev, "gart size (%d) too small\n",
1159 radeon_gart_size = radeon_gart_size_auto(rdev->family);
1160 } else if (!radeon_check_pot_argument(radeon_gart_size)) {
1161 dev_warn(rdev->dev, "gart size (%d) must be a power of 2\n",
1163 radeon_gart_size = radeon_gart_size_auto(rdev->family);
1165 rdev->mc.gtt_size = (uint64_t)radeon_gart_size << 20;
1167 /* AGP mode can only be -1, 1, 2, 4, 8 */
1168 switch (radeon_agpmode) {
1177 dev_warn(rdev->dev, "invalid AGP mode %d (valid mode: "
1178 "-1, 0, 1, 2, 4, 8)\n", radeon_agpmode);
1183 if (!radeon_check_pot_argument(radeon_vm_size)) {
1184 dev_warn(rdev->dev, "VM size (%d) must be a power of 2\n",
1189 if (radeon_vm_size < 1) {
1190 dev_warn(rdev->dev, "VM size (%d) too small, min is 1GB\n",
1196 * Max GPUVM size for Cayman, SI and CI are 40 bits.
1198 if (radeon_vm_size > 1024) {
1199 dev_warn(rdev->dev, "VM size (%d) too large, max is 1TB\n",
1204 /* defines number of bits in page table versus page directory,
1205 * a page is 4KB so we have 12 bits offset, minimum 9 bits in the
1206 * page table and the remaining bits are in the page directory */
1207 if (radeon_vm_block_size == -1) {
1209 /* Total bits covered by PD + PTs */
1210 unsigned bits = ilog2(radeon_vm_size) + 18;
1212 /* Make sure the PD is 4K in size up to 8GB address space.
1213 Above that split equal between PD and PTs */
1214 if (radeon_vm_size <= 8)
1215 radeon_vm_block_size = bits - 9;
1217 radeon_vm_block_size = (bits + 3) / 2;
1219 } else if (radeon_vm_block_size < 9) {
1220 dev_warn(rdev->dev, "VM page table size (%d) too small\n",
1221 radeon_vm_block_size);
1222 radeon_vm_block_size = 9;
1225 if (radeon_vm_block_size > 24 ||
1226 (radeon_vm_size * 1024) < (1ull << radeon_vm_block_size)) {
1227 dev_warn(rdev->dev, "VM page table size (%d) too large\n",
1228 radeon_vm_block_size);
1229 radeon_vm_block_size = 9;
1234 * radeon_switcheroo_set_state - set switcheroo state
1236 * @pdev: pci dev pointer
1237 * @state: vga_switcheroo state
1239 * Callback for the switcheroo driver. Suspends or resumes the
1240 * the asics before or after it is powered up using ACPI methods.
1243 static void radeon_switcheroo_set_state(struct pci_dev *pdev, enum vga_switcheroo_state state)
1245 struct drm_device *dev = pci_get_drvdata(pdev);
1246 struct radeon_device *rdev = dev->dev_private;
1248 if (radeon_is_px(dev) && state == VGA_SWITCHEROO_OFF)
1251 if (state == VGA_SWITCHEROO_ON) {
1252 unsigned d3_delay = dev->pdev->d3_delay;
1254 printk(KERN_INFO "radeon: switched on\n");
1255 /* don't suspend or resume card normally */
1256 dev->switch_power_state = DRM_SWITCH_POWER_CHANGING;
1258 if (d3_delay < 20 && (rdev->px_quirk_flags & RADEON_PX_QUIRK_LONG_WAKEUP))
1259 dev->pdev->d3_delay = 20;
1261 radeon_resume_kms(dev, true, true);
1263 dev->pdev->d3_delay = d3_delay;
1265 dev->switch_power_state = DRM_SWITCH_POWER_ON;
1266 drm_kms_helper_poll_enable(dev);
1268 printk(KERN_INFO "radeon: switched off\n");
1269 drm_kms_helper_poll_disable(dev);
1270 dev->switch_power_state = DRM_SWITCH_POWER_CHANGING;
1271 radeon_suspend_kms(dev, true, true, false);
1272 dev->switch_power_state = DRM_SWITCH_POWER_OFF;
1275 #endif /* DUMBBELL_WIP */
1278 * radeon_switcheroo_can_switch - see if switcheroo state can change
1280 * @pdev: pci dev pointer
1282 * Callback for the switcheroo driver. Check of the switcheroo
1283 * state can be changed.
1284 * Returns true if the state can be changed, false if not.
1287 static bool radeon_switcheroo_can_switch(struct pci_dev *pdev)
1289 struct drm_device *dev = pci_get_drvdata(pdev);
1292 * FIXME: open_count is protected by drm_global_mutex but that would lead to
1293 * locking inversion with the driver load path. And the access here is
1294 * completely racy anyway. So don't bother with locking for now.
1296 return dev->open_count == 0;
1299 static const struct vga_switcheroo_client_ops radeon_switcheroo_ops = {
1300 .set_gpu_state = radeon_switcheroo_set_state,
1302 .can_switch = radeon_switcheroo_can_switch,
1304 #endif /* DUMBBELL_WIP */
1307 * radeon_device_init - initialize the driver
1309 * @rdev: radeon_device pointer
1310 * @pdev: drm dev pointer
1311 * @pdev: pci dev pointer
1312 * @flags: driver flags
1314 * Initializes the driver info and hw (all asics).
1315 * Returns 0 for success or an error on failure.
1316 * Called at driver startup.
1318 int radeon_device_init(struct radeon_device *rdev,
1319 struct drm_device *ddev,
1320 struct pci_dev *pdev,
1326 bool runtime = false;
1329 rdev->shutdown = false;
1330 rdev->dev = &pdev->dev;
1333 rdev->flags = flags;
1334 rdev->family = flags & RADEON_FAMILY_MASK;
1335 rdev->is_atom_bios = false;
1336 rdev->usec_timeout = RADEON_MAX_USEC_TIMEOUT;
1337 rdev->mc.gtt_size = 512 * 1024 * 1024;
1338 rdev->accel_working = false;
1339 rdev->fictitious_range_registered = false;
1340 /* set up ring ids */
1341 for (i = 0; i < RADEON_NUM_RINGS; i++) {
1342 rdev->ring[i].idx = i;
1344 rdev->fence_context = dma_fence_context_alloc(RADEON_NUM_RINGS);
1346 DRM_INFO("initializing kernel modesetting (%s 0x%04X:0x%04X 0x%04X:0x%04X 0x%02X).\n",
1347 radeon_family_name[rdev->family], pdev->vendor, pdev->device,
1348 pdev->subsystem_vendor, pdev->subsystem_device, pdev->revision);
1350 /* mutex initialization are all done here so we
1351 * can recall function without having locking issues */
1352 lockinit(&rdev->ring_lock, "drdrl", 0, LK_CANRECURSE);
1353 lockinit(&rdev->dc_hw_i2c_mutex, "drddi2cm", 0, LK_CANRECURSE);
1354 atomic_set(&rdev->ih.lock, 0);
1355 lockinit(&rdev->gem.mutex, "radeon_gemmtx", 0, LK_CANRECURSE);
1356 lockinit(&rdev->pm.mutex, "drdpmm", 0, LK_CANRECURSE);
1357 lockinit(&rdev->gpu_clock_mutex, "radeon_clockmtx", 0, LK_CANRECURSE);
1358 lockinit(&rdev->srbm_mutex, "radeon_srbm_mutex", 0, LK_CANRECURSE);
1359 lockinit(&rdev->grbm_idx_mutex, "drgim", 0, LK_CANRECURSE);
1360 lockinit(&rdev->pm.mclk_lock, "drpmml", 0, LK_CANRECURSE);
1361 lockinit(&rdev->exclusive_lock, "drdel", 0, LK_CANRECURSE);
1362 init_waitqueue_head(&rdev->irq.vblank_queue);
1363 lockinit(&rdev->mn_lock, "drrml", 0, LK_CANRECURSE);
1364 r = radeon_gem_init(rdev);
1368 radeon_check_arguments(rdev);
1369 /* Adjust VM size here.
1370 * Max GPUVM size for cayman+ is 40 bits.
1372 rdev->vm_manager.max_pfn = radeon_vm_size << 18;
1374 /* Set asic functions */
1375 r = radeon_asic_init(rdev);
1379 /* all of the newer IGP chips have an internal gart
1380 * However some rs4xx report as AGP, so remove that here.
1382 if ((rdev->family >= CHIP_RS400) &&
1383 (rdev->flags & RADEON_IS_IGP)) {
1384 rdev->flags &= ~RADEON_IS_AGP;
1387 if (rdev->flags & RADEON_IS_AGP && radeon_agpmode == -1) {
1388 radeon_agp_disable(rdev);
1391 /* Set the internal MC address mask
1392 * This is the max address of the GPU's
1393 * internal address space.
1395 if (rdev->family >= CHIP_CAYMAN)
1396 rdev->mc.mc_mask = 0xffffffffffULL; /* 40 bit MC */
1397 else if (rdev->family >= CHIP_CEDAR)
1398 rdev->mc.mc_mask = 0xfffffffffULL; /* 36 bit MC */
1400 rdev->mc.mc_mask = 0xffffffffULL; /* 32 bit MC */
1402 /* set DMA mask + need_dma32 flags.
1403 * PCIE - can handle 40-bits.
1404 * IGP - can handle 40-bits
1405 * AGP - generally dma32 is safest
1406 * PCI - dma32 for legacy pci gart, 40 bits on newer asics
1408 rdev->need_dma32 = false;
1409 if (rdev->flags & RADEON_IS_AGP)
1410 rdev->need_dma32 = true;
1411 if ((rdev->flags & RADEON_IS_PCI) &&
1412 (rdev->family <= CHIP_RS740))
1413 rdev->need_dma32 = true;
1415 dma_bits = rdev->need_dma32 ? 32 : 40;
1416 r = pci_set_dma_mask(rdev->pdev, DMA_BIT_MASK(dma_bits));
1418 rdev->need_dma32 = true;
1420 printk(KERN_WARNING "radeon: No suitable DMA available.\n");
1422 r = pci_set_consistent_dma_mask(rdev->pdev, DMA_BIT_MASK(dma_bits));
1424 pci_set_consistent_dma_mask(rdev->pdev, DMA_BIT_MASK(32));
1425 printk(KERN_WARNING "radeon: No coherent DMA available.\n");
1428 /* Registers mapping */
1429 /* TODO: block userspace mapping of io register */
1430 lockinit(&rdev->mmio_idx_lock, "rdnmidl", 0, 0);
1431 lockinit(&rdev->smc_idx_lock, "rdnsil", 0, 0);
1432 lockinit(&rdev->pll_idx_lock, "rdnpll", 0, 0);
1433 lockinit(&rdev->mc_idx_lock, "rdnmcil", 0, 0);
1434 lockinit(&rdev->pcie_idx_lock, "rdnpil", 0, 0);
1435 lockinit(&rdev->pciep_idx_lock, "rdnppil", 0, 0);
1436 lockinit(&rdev->pif_idx_lock, "rdnpif", 0, 0);
1437 lockinit(&rdev->cg_idx_lock, "rdncgil", 0, 0);
1438 lockinit(&rdev->uvd_idx_lock, "rdnuvd", 0, 0);
1439 lockinit(&rdev->rcu_idx_lock, "rdnrcu", 0, 0);
1440 lockinit(&rdev->didt_idx_lock, "rdndidt", 0, 0);
1441 lockinit(&rdev->end_idx_lock, "rdneil", 0, 0);
1442 if (rdev->family >= CHIP_BONAIRE) {
1443 rdev->rmmio_base = pci_resource_start(rdev->pdev, 5);
1444 rdev->rmmio_size = pci_resource_len(rdev->pdev, 5);
1446 rdev->rmmio_base = pci_resource_start(rdev->pdev, 2);
1447 rdev->rmmio_size = pci_resource_len(rdev->pdev, 2);
1449 rdev->rmmio = ioremap(rdev->rmmio_base, rdev->rmmio_size);
1450 if (rdev->rmmio == NULL) {
1453 DRM_INFO("register mmio base: 0x%08X\n", (uint32_t)rdev->rmmio_base);
1454 DRM_INFO("register mmio size: %u\n", (unsigned)rdev->rmmio_size);
1456 /* doorbell bar mapping */
1457 if (rdev->family >= CHIP_BONAIRE)
1458 radeon_doorbell_init(rdev);
1460 /* io port mapping */
1461 for (i = 0; i < DEVICE_COUNT_RESOURCE; i++) {
1464 data = pci_read_config(rdev->dev->bsddev, PCIR_BAR(i), 4);
1465 if (PCI_BAR_IO(data)) {
1466 rdev->rio_rid = PCIR_BAR(i);
1467 rdev->rio_mem_size = pci_resource_len(rdev->pdev, i);
1468 rdev->rio_mem = bus_alloc_resource_any(rdev->dev->bsddev,
1469 SYS_RES_IOPORT, &rdev->rio_rid,
1470 RF_ACTIVE | RF_SHAREABLE);
1474 if (rdev->rio_mem == NULL)
1475 DRM_ERROR("Unable to find PCI I/O BAR\n");
1477 if (rdev->flags & RADEON_IS_PX)
1478 radeon_device_handle_px_quirks(rdev);
1481 /* if we have > 1 VGA cards, then disable the radeon VGA resources */
1482 /* this will fail for cards that aren't VGA class devices, just
1484 vga_client_register(rdev->pdev, rdev, NULL, radeon_vga_set_decode);
1486 if (rdev->flags & RADEON_IS_PX)
1488 vga_switcheroo_register_client(rdev->pdev, &radeon_switcheroo_ops, runtime);
1490 vga_switcheroo_init_domain_pm_ops(rdev->dev, &rdev->vga_pm_domain);
1493 r = radeon_init(rdev);
1497 r = radeon_gem_debugfs_init(rdev);
1499 DRM_ERROR("registering gem debugfs failed (%d).\n", r);
1502 r = radeon_mst_debugfs_init(rdev);
1504 DRM_ERROR("registering mst debugfs failed (%d).\n", r);
1507 if (rdev->flags & RADEON_IS_AGP && !rdev->accel_working) {
1508 /* Acceleration not working on AGP card try again
1509 * with fallback to PCI or PCIE GART
1511 radeon_asic_reset(rdev);
1513 radeon_agp_disable(rdev);
1514 r = radeon_init(rdev);
1519 r = radeon_ib_ring_tests(rdev);
1521 DRM_ERROR("ib ring test failed (%d).\n", r);
1523 DRM_INFO("%s: Taking over the fictitious range 0x%lx-0x%llx\n",
1524 __func__, (uintmax_t)rdev->mc.aper_base,
1525 (uintmax_t)rdev->mc.aper_base + rdev->mc.visible_vram_size);
1526 r = vm_phys_fictitious_reg_range(
1528 rdev->mc.aper_base + rdev->mc.visible_vram_size,
1529 VM_MEMATTR_WRITE_COMBINING);
1531 DRM_ERROR("Failed to register fictitious range "
1532 "0x%lx-0x%llx (%d).\n", (uintmax_t)rdev->mc.aper_base,
1533 (uintmax_t)rdev->mc.aper_base + rdev->mc.visible_vram_size, r);
1536 rdev->fictitious_range_registered = true;
1539 * Turks/Thames GPU will freeze whole laptop if DPM is not restarted
1540 * after the CP ring have chew one packet at least. Hence here we stop
1541 * and restart DPM after the radeon_ib_ring_tests().
1543 if (rdev->pm.dpm_enabled &&
1544 (rdev->pm.pm_method == PM_METHOD_DPM) &&
1545 (rdev->family == CHIP_TURKS) &&
1546 (rdev->flags & RADEON_IS_MOBILITY)) {
1547 mutex_lock(&rdev->pm.mutex);
1548 radeon_dpm_disable(rdev);
1549 radeon_dpm_enable(rdev);
1550 mutex_unlock(&rdev->pm.mutex);
1553 if ((radeon_testing & 1)) {
1554 if (rdev->accel_working)
1555 radeon_test_moves(rdev);
1557 DRM_INFO("radeon: acceleration disabled, skipping move tests\n");
1559 if ((radeon_testing & 2)) {
1560 if (rdev->accel_working)
1561 radeon_test_syncing(rdev);
1563 DRM_INFO("radeon: acceleration disabled, skipping sync tests\n");
1565 if (radeon_benchmarking) {
1566 if (rdev->accel_working)
1567 radeon_benchmark(rdev, radeon_benchmarking);
1569 DRM_INFO("radeon: acceleration disabled, skipping benchmarks\n");
1571 rdev->dummy_page.entry = radeon_gart_get_page_entry(rdev->dummy_page.addr,
1572 RADEON_GART_PAGE_DUMMY);
1578 vga_switcheroo_fini_domain_pm_ops(rdev->dev);
1583 static void radeon_debugfs_remove_files(struct radeon_device *rdev);
1586 * radeon_device_fini - tear down the driver
1588 * @rdev: radeon_device pointer
1590 * Tear down the driver info (all asics).
1591 * Called at driver shutdown.
1593 void radeon_device_fini(struct radeon_device *rdev)
1595 DRM_INFO("radeon: finishing device.\n");
1596 rdev->shutdown = true;
1597 /* evict vram memory */
1598 radeon_bo_evict_vram(rdev);
1600 if (rdev->fictitious_range_registered) {
1601 vm_phys_fictitious_unreg_range(
1603 rdev->mc.aper_base + rdev->mc.visible_vram_size);
1608 vga_switcheroo_unregister_client(rdev->pdev);
1609 if (rdev->flags & RADEON_IS_PX)
1610 vga_switcheroo_fini_domain_pm_ops(rdev->dev);
1611 vga_client_register(rdev->pdev, NULL, NULL, NULL);
1612 #endif /* DUMBBELL_WIP */
1614 bus_release_resource(rdev->dev->bsddev, SYS_RES_IOPORT, rdev->rio_rid,
1616 rdev->rio_mem = NULL;
1617 iounmap(rdev->rmmio);
1619 if (rdev->family >= CHIP_BONAIRE)
1620 radeon_doorbell_fini(rdev);
1621 radeon_debugfs_remove_files(rdev);
1629 * radeon_suspend_kms - initiate device suspend
1631 * @pdev: drm dev pointer
1632 * @state: suspend state
1634 * Puts the hw in the suspend state (all asics).
1635 * Returns 0 for success or an error on failure.
1636 * Called at driver suspend.
1638 int radeon_suspend_kms(struct drm_device *dev, bool suspend,
1639 bool fbcon, bool freeze)
1641 struct radeon_device *rdev;
1642 struct drm_crtc *crtc;
1643 struct drm_connector *connector;
1646 if (dev == NULL || dev->dev_private == NULL) {
1650 rdev = dev->dev_private;
1652 if (dev->switch_power_state == DRM_SWITCH_POWER_OFF)
1655 drm_kms_helper_poll_disable(dev);
1657 drm_modeset_lock_all(dev);
1658 /* turn off display hw */
1659 list_for_each_entry(connector, &dev->mode_config.connector_list, head) {
1660 drm_helper_connector_dpms(connector, DRM_MODE_DPMS_OFF);
1662 drm_modeset_unlock_all(dev);
1664 /* unpin the front buffers and cursors */
1665 list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) {
1666 struct radeon_crtc *radeon_crtc = to_radeon_crtc(crtc);
1667 struct radeon_framebuffer *rfb = to_radeon_framebuffer(crtc->primary->fb);
1668 struct radeon_bo *robj;
1670 if (radeon_crtc->cursor_bo) {
1671 struct radeon_bo *robj = gem_to_radeon_bo(radeon_crtc->cursor_bo);
1672 r = radeon_bo_reserve(robj, false);
1674 radeon_bo_unpin(robj);
1675 radeon_bo_unreserve(robj);
1679 if (rfb == NULL || rfb->obj == NULL) {
1682 robj = gem_to_radeon_bo(rfb->obj);
1683 /* don't unpin kernel fb objects */
1684 if (!radeon_fbdev_robj_is_fb(rdev, robj)) {
1685 r = radeon_bo_reserve(robj, false);
1687 radeon_bo_unpin(robj);
1688 radeon_bo_unreserve(robj);
1692 /* evict vram memory */
1693 radeon_bo_evict_vram(rdev);
1695 /* wait for gpu to finish processing current batch */
1696 for (i = 0; i < RADEON_NUM_RINGS; i++) {
1697 r = radeon_fence_wait_empty(rdev, i);
1699 /* delay GPU reset to resume */
1700 radeon_fence_driver_force_completion(rdev, i);
1704 radeon_save_bios_scratch_regs(rdev);
1706 radeon_suspend(rdev);
1707 radeon_hpd_fini(rdev);
1708 /* evict remaining vram memory */
1709 radeon_bo_evict_vram(rdev);
1711 radeon_agp_suspend(rdev);
1713 pci_save_state(device_get_parent(rdev->dev->bsddev));
1715 if (freeze && rdev->family >= CHIP_CEDAR) {
1716 rdev->asic->asic_reset(rdev, true);
1717 pci_restore_state(dev->pdev);
1718 } else if (suspend) {
1719 /* Shut down the device */
1720 pci_disable_device(dev->pdev);
1721 pci_set_powerstate(dev->dev->bsddev, PCI_POWERSTATE_D3);
1728 #endif /* DUMBBELL_WIP */
1729 radeon_fbdev_set_suspend(rdev, 1);
1732 #endif /* DUMBBELL_WIP */
1734 rdev->dummy_page.entry = radeon_gart_get_page_entry(rdev->dummy_page.addr,
1735 RADEON_GART_PAGE_DUMMY);
1740 * radeon_resume_kms - initiate device resume
1742 * @pdev: drm dev pointer
1744 * Bring the hw back to operating state (all asics).
1745 * Returns 0 for success or an error on failure.
1746 * Called at driver resume.
1748 int radeon_resume_kms(struct drm_device *dev, bool resume, bool fbcon)
1750 struct drm_connector *connector;
1751 struct radeon_device *rdev = dev->dev_private;
1752 struct drm_crtc *crtc;
1755 if (dev->switch_power_state == DRM_SWITCH_POWER_OFF)
1762 #endif /* DUMBBELL_WIP */
1765 pci_set_power_state(dev->pdev, PCI_D0);
1766 pci_restore_state(dev->pdev);
1767 if (pci_enable_device(dev->pdev)) {
1772 #endif /* DUMBBELL_WIP */
1774 /* resume AGP if in use */
1775 radeon_agp_resume(rdev);
1776 radeon_resume(rdev);
1778 r = radeon_ib_ring_tests(rdev);
1780 DRM_ERROR("ib ring test failed (%d).\n", r);
1782 if ((rdev->pm.pm_method == PM_METHOD_DPM) && rdev->pm.dpm_enabled) {
1783 /* do dpm late init */
1784 r = radeon_pm_late_init(rdev);
1786 rdev->pm.dpm_enabled = false;
1787 DRM_ERROR("radeon_pm_late_init failed, disabling dpm\n");
1790 /* resume old pm late */
1791 radeon_pm_resume(rdev);
1794 radeon_restore_bios_scratch_regs(rdev);
1797 list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) {
1798 struct radeon_crtc *radeon_crtc = to_radeon_crtc(crtc);
1800 if (radeon_crtc->cursor_bo) {
1801 struct radeon_bo *robj = gem_to_radeon_bo(radeon_crtc->cursor_bo);
1802 r = radeon_bo_reserve(robj, false);
1804 /* Only 27 bit offset for legacy cursor */
1805 r = radeon_bo_pin_restricted(robj,
1806 RADEON_GEM_DOMAIN_VRAM,
1807 ASIC_IS_AVIVO(rdev) ?
1809 (u64 *)&radeon_crtc->cursor_addr);
1811 DRM_ERROR("Failed to pin cursor BO (%d)\n", r);
1812 radeon_bo_unreserve(robj);
1817 /* init dig PHYs, disp eng pll */
1818 if (rdev->is_atom_bios) {
1819 radeon_atom_encoder_init(rdev);
1820 radeon_atom_disp_eng_pll_init(rdev);
1821 /* turn on the BL */
1822 if (rdev->mode_info.bl_encoder) {
1823 u8 bl_level = radeon_get_backlight_level(rdev,
1824 rdev->mode_info.bl_encoder);
1825 radeon_set_backlight_level(rdev, rdev->mode_info.bl_encoder,
1829 /* reset hpd state */
1830 radeon_hpd_init(rdev);
1831 /* blat the mode back in */
1833 drm_helper_resume_force_mode(dev);
1834 /* turn on display hw */
1835 drm_modeset_lock_all(dev);
1836 list_for_each_entry(connector, &dev->mode_config.connector_list, head) {
1837 drm_helper_connector_dpms(connector, DRM_MODE_DPMS_ON);
1839 drm_modeset_unlock_all(dev);
1842 drm_kms_helper_poll_enable(dev);
1844 /* set the power state here in case we are a PX system or headless */
1845 if ((rdev->pm.pm_method == PM_METHOD_DPM) && rdev->pm.dpm_enabled)
1846 radeon_pm_compute_clocks(rdev);
1849 radeon_fbdev_set_suspend(rdev, 0);
1852 #endif /* DUMBBELL_WIP */
1859 * radeon_gpu_reset - reset the asic
1861 * @rdev: radeon device pointer
1863 * Attempt the reset the GPU if it has hung (all asics).
1864 * Returns 0 for success or an error on failure.
1866 int radeon_gpu_reset(struct radeon_device *rdev)
1868 unsigned ring_sizes[RADEON_NUM_RINGS];
1869 uint32_t *ring_data[RADEON_NUM_RINGS];
1876 down_write(&rdev->exclusive_lock);
1878 if (!rdev->needs_reset) {
1879 up_write(&rdev->exclusive_lock);
1883 atomic_inc(&rdev->gpu_reset_counter);
1885 radeon_save_bios_scratch_regs(rdev);
1887 resched = ttm_bo_lock_delayed_workqueue(&rdev->mman.bdev);
1888 radeon_suspend(rdev);
1889 radeon_hpd_fini(rdev);
1891 for (i = 0; i < RADEON_NUM_RINGS; ++i) {
1892 ring_sizes[i] = radeon_ring_backup(rdev, &rdev->ring[i],
1894 if (ring_sizes[i]) {
1896 dev_info(rdev->dev, "Saved %d dwords of commands "
1897 "on ring %d.\n", ring_sizes[i], i);
1901 r = radeon_asic_reset(rdev);
1903 dev_info(rdev->dev, "GPU reset succeeded, trying to resume\n");
1904 radeon_resume(rdev);
1907 radeon_restore_bios_scratch_regs(rdev);
1909 for (i = 0; i < RADEON_NUM_RINGS; ++i) {
1910 if (!r && ring_data[i]) {
1911 radeon_ring_restore(rdev, &rdev->ring[i],
1912 ring_sizes[i], ring_data[i]);
1914 radeon_fence_driver_force_completion(rdev, i);
1915 kfree(ring_data[i]);
1919 if ((rdev->pm.pm_method == PM_METHOD_DPM) && rdev->pm.dpm_enabled) {
1920 /* do dpm late init */
1921 r = radeon_pm_late_init(rdev);
1923 rdev->pm.dpm_enabled = false;
1924 DRM_ERROR("radeon_pm_late_init failed, disabling dpm\n");
1927 /* resume old pm late */
1928 radeon_pm_resume(rdev);
1931 /* init dig PHYs, disp eng pll */
1932 if (rdev->is_atom_bios) {
1933 radeon_atom_encoder_init(rdev);
1934 radeon_atom_disp_eng_pll_init(rdev);
1935 /* turn on the BL */
1936 if (rdev->mode_info.bl_encoder) {
1937 u8 bl_level = radeon_get_backlight_level(rdev,
1938 rdev->mode_info.bl_encoder);
1939 radeon_set_backlight_level(rdev, rdev->mode_info.bl_encoder,
1943 /* reset hpd state */
1944 radeon_hpd_init(rdev);
1946 ttm_bo_unlock_delayed_workqueue(&rdev->mman.bdev, resched);
1948 rdev->in_reset = true;
1949 rdev->needs_reset = false;
1952 downgrade_write(&rdev->exclusive_lock);
1955 drm_helper_resume_force_mode(rdev->ddev);
1957 /* set the power state here in case we are a PX system or headless */
1958 if ((rdev->pm.pm_method == PM_METHOD_DPM) && rdev->pm.dpm_enabled)
1959 radeon_pm_compute_clocks(rdev);
1962 r = radeon_ib_ring_tests(rdev);
1966 /* bad news, how to tell it to userspace ? */
1967 dev_info(rdev->dev, "GPU reset failed\n");
1970 rdev->needs_reset = r == -EAGAIN;
1971 rdev->in_reset = false;
1973 up_read(&rdev->exclusive_lock);
1981 int radeon_debugfs_add_files(struct radeon_device *rdev,
1982 struct drm_info_list *files,
1987 for (i = 0; i < rdev->debugfs_count; i++) {
1988 if (rdev->debugfs[i].files == files) {
1989 /* Already registered */
1994 i = rdev->debugfs_count + 1;
1995 if (i > RADEON_DEBUGFS_MAX_COMPONENTS) {
1996 DRM_ERROR("Reached maximum number of debugfs components.\n");
1997 DRM_ERROR("Report so we increase "
1998 "RADEON_DEBUGFS_MAX_COMPONENTS.\n");
2001 rdev->debugfs[rdev->debugfs_count].files = files;
2002 rdev->debugfs[rdev->debugfs_count].num_files = nfiles;
2003 rdev->debugfs_count = i;
2004 #if defined(CONFIG_DEBUG_FS)
2005 drm_debugfs_create_files(files, nfiles,
2006 rdev->ddev->control->debugfs_root,
2007 rdev->ddev->control);
2008 drm_debugfs_create_files(files, nfiles,
2009 rdev->ddev->primary->debugfs_root,
2010 rdev->ddev->primary);
2015 static void radeon_debugfs_remove_files(struct radeon_device *rdev)
2017 #if defined(CONFIG_DEBUG_FS)
2020 for (i = 0; i < rdev->debugfs_count; i++) {
2021 drm_debugfs_remove_files(rdev->debugfs[i].files,
2022 rdev->debugfs[i].num_files,
2023 rdev->ddev->control);
2024 drm_debugfs_remove_files(rdev->debugfs[i].files,
2025 rdev->debugfs[i].num_files,
2026 rdev->ddev->primary);