diff options
Diffstat (limited to 'drivers/gpu/drm/radeon/radeon_agp.c')
| -rw-r--r-- | drivers/gpu/drm/radeon/radeon_agp.c | 378 |
1 files changed, 378 insertions, 0 deletions
diff --git a/drivers/gpu/drm/radeon/radeon_agp.c b/drivers/gpu/drm/radeon/radeon_agp.c new file mode 100644 index 000000000..d124600b5 --- /dev/null +++ b/drivers/gpu/drm/radeon/radeon_agp.c @@ -0,0 +1,378 @@ +/* + * Copyright 2008 Red Hat Inc. + * Copyright 2009 Jerome Glisse. + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the "Software"), + * to deal in the Software without restriction, including without limitation + * the rights to use, copy, modify, merge, publish, distribute, sublicense, + * and/or sell copies of the Software, and to permit persons to whom the + * Software is furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included in + * all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL + * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR + * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, + * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR + * OTHER DEALINGS IN THE SOFTWARE. + * + * Authors: + * Dave Airlie + * Jerome Glisse <glisse@freedesktop.org> + */ + +#include <linux/pci.h> + +#include <drm/drm_device.h> +#include <drm/radeon_drm.h> + +#include "radeon.h" + +#if IS_ENABLED(CONFIG_AGP) + +struct radeon_agpmode_quirk { + u32 hostbridge_vendor; + u32 hostbridge_device; + u32 chip_vendor; + u32 chip_device; + u32 subsys_vendor; + u32 subsys_device; + u32 default_mode; +}; + +static struct radeon_agpmode_quirk radeon_agpmode_quirk_list[] = { + /* Intel E7505 Memory Controller Hub / RV350 AR [Radeon 9600XT] Needs AGPMode 4 (deb #515326) */ + { PCI_VENDOR_ID_INTEL, 0x2550, PCI_VENDOR_ID_ATI, 0x4152, 0x1458, 0x4038, 4}, + /* Intel 82865G/PE/P DRAM Controller/Host-Hub / Mobility 9800 Needs AGPMode 4 (deb #462590) */ + { PCI_VENDOR_ID_INTEL, 0x2570, PCI_VENDOR_ID_ATI, 0x4a4e, PCI_VENDOR_ID_DELL, 0x5106, 4}, + /* Intel 82865G/PE/P DRAM Controller/Host-Hub / RV280 [Radeon 9200 SE] Needs AGPMode 4 (lp #300304) */ + { PCI_VENDOR_ID_INTEL, 0x2570, PCI_VENDOR_ID_ATI, 0x5964, + 0x148c, 0x2073, 4}, + /* Intel 82855PM Processor to I/O Controller / Mobility M6 LY Needs AGPMode 1 (deb #467235) */ + { PCI_VENDOR_ID_INTEL, 0x3340, PCI_VENDOR_ID_ATI, 0x4c59, + PCI_VENDOR_ID_IBM, 0x052f, 1}, + /* Intel 82855PM host bridge / Mobility 9600 M10 RV350 Needs AGPMode 1 (lp #195051) */ + { PCI_VENDOR_ID_INTEL, 0x3340, PCI_VENDOR_ID_ATI, 0x4e50, + PCI_VENDOR_ID_IBM, 0x0550, 1}, + /* Intel 82855PM host bridge / RV250/M9 GL [Mobility FireGL 9000/Radeon 9000] needs AGPMode 1 (Thinkpad T40p) */ + { PCI_VENDOR_ID_INTEL, 0x3340, PCI_VENDOR_ID_ATI, 0x4c66, + PCI_VENDOR_ID_IBM, 0x054d, 1}, + /* Intel 82855PM host bridge / Mobility M7 needs AGPMode 1 */ + { PCI_VENDOR_ID_INTEL, 0x3340, PCI_VENDOR_ID_ATI, 0x4c57, + PCI_VENDOR_ID_IBM, 0x0530, 1}, + /* Intel 82855PM host bridge / FireGL Mobility T2 RV350 Needs AGPMode 2 (fdo #20647) */ + { PCI_VENDOR_ID_INTEL, 0x3340, PCI_VENDOR_ID_ATI, 0x4e54, + PCI_VENDOR_ID_IBM, 0x054f, 2}, + /* Intel 82855PM host bridge / Mobility M9+ / VaioPCG-V505DX Needs AGPMode 2 (fdo #17928) */ + { PCI_VENDOR_ID_INTEL, 0x3340, PCI_VENDOR_ID_ATI, 0x5c61, + PCI_VENDOR_ID_SONY, 0x816b, 2}, + /* Intel 82855PM Processor to I/O Controller / Mobility M9+ Needs AGPMode 8 (phoronix forum) */ + { PCI_VENDOR_ID_INTEL, 0x3340, PCI_VENDOR_ID_ATI, 0x5c61, + PCI_VENDOR_ID_SONY, 0x8195, 8}, + /* Intel 82830 830 Chipset Host Bridge / Mobility M6 LY Needs AGPMode 2 (fdo #17360)*/ + { PCI_VENDOR_ID_INTEL, 0x3575, PCI_VENDOR_ID_ATI, 0x4c59, + PCI_VENDOR_ID_DELL, 0x00e3, 2}, + /* Intel 82852/82855 host bridge / Mobility FireGL 9000 RV250 Needs AGPMode 1 (lp #296617) */ + { PCI_VENDOR_ID_INTEL, 0x3580, PCI_VENDOR_ID_ATI, 0x4c66, + PCI_VENDOR_ID_DELL, 0x0149, 1}, + /* Intel 82855PM host bridge / Mobility FireGL 9000 RV250 Needs AGPMode 1 for suspend/resume */ + { PCI_VENDOR_ID_INTEL, 0x3340, PCI_VENDOR_ID_ATI, 0x4c66, + PCI_VENDOR_ID_IBM, 0x0531, 1}, + /* Intel 82852/82855 host bridge / Mobility 9600 M10 RV350 Needs AGPMode 1 (deb #467460) */ + { PCI_VENDOR_ID_INTEL, 0x3580, PCI_VENDOR_ID_ATI, 0x4e50, + 0x1025, 0x0061, 1}, + /* Intel 82852/82855 host bridge / Mobility 9600 M10 RV350 Needs AGPMode 1 (lp #203007) */ + { PCI_VENDOR_ID_INTEL, 0x3580, PCI_VENDOR_ID_ATI, 0x4e50, + 0x1025, 0x0064, 1}, + /* Intel 82852/82855 host bridge / Mobility 9600 M10 RV350 Needs AGPMode 1 (lp #141551) */ + { PCI_VENDOR_ID_INTEL, 0x3580, PCI_VENDOR_ID_ATI, 0x4e50, + PCI_VENDOR_ID_ASUSTEK, 0x1942, 1}, + /* Intel 82852/82855 host bridge / Mobility 9600/9700 Needs AGPMode 1 (deb #510208) */ + { PCI_VENDOR_ID_INTEL, 0x3580, PCI_VENDOR_ID_ATI, 0x4e50, + 0x10cf, 0x127f, 1}, + /* ASRock K7VT4A+ AGP 8x / ATI Radeon 9250 AGP Needs AGPMode 4 (lp #133192) */ + { 0x1849, 0x3189, PCI_VENDOR_ID_ATI, 0x5960, + 0x1787, 0x5960, 4}, + /* VIA K8M800 Host Bridge / RV280 [Radeon 9200 PRO] Needs AGPMode 4 (fdo #12544) */ + { PCI_VENDOR_ID_VIA, 0x0204, PCI_VENDOR_ID_ATI, 0x5960, + 0x17af, 0x2020, 4}, + /* VIA KT880 Host Bridge / RV350 [Radeon 9550] Needs AGPMode 4 (fdo #19981) */ + { PCI_VENDOR_ID_VIA, 0x0269, PCI_VENDOR_ID_ATI, 0x4153, + PCI_VENDOR_ID_ASUSTEK, 0x003c, 4}, + /* VIA VT8363 Host Bridge / R200 QL [Radeon 8500] Needs AGPMode 2 (lp #141551) */ + { PCI_VENDOR_ID_VIA, 0x0305, PCI_VENDOR_ID_ATI, 0x514c, + PCI_VENDOR_ID_ATI, 0x013a, 2}, + /* VIA VT82C693A Host Bridge / RV280 [Radeon 9200 PRO] Needs AGPMode 2 (deb #515512) */ + { PCI_VENDOR_ID_VIA, 0x0691, PCI_VENDOR_ID_ATI, 0x5960, + PCI_VENDOR_ID_ASUSTEK, 0x004c, 2}, + /* VIA VT82C693A Host Bridge / RV280 [Radeon 9200 PRO] Needs AGPMode 2 */ + { PCI_VENDOR_ID_VIA, 0x0691, PCI_VENDOR_ID_ATI, 0x5960, + PCI_VENDOR_ID_ASUSTEK, 0x0054, 2}, + /* VIA VT8377 Host Bridge / R200 QM [Radeon 9100] Needs AGPMode 4 (deb #461144) */ + { PCI_VENDOR_ID_VIA, 0x3189, PCI_VENDOR_ID_ATI, 0x514d, + 0x174b, 0x7149, 4}, + /* VIA VT8377 Host Bridge / RV280 [Radeon 9200 PRO] Needs AGPMode 4 (lp #312693) */ + { PCI_VENDOR_ID_VIA, 0x3189, PCI_VENDOR_ID_ATI, 0x5960, + 0x1462, 0x0380, 4}, + /* VIA VT8377 Host Bridge / RV280 Needs AGPMode 4 (ati ML) */ + { PCI_VENDOR_ID_VIA, 0x3189, PCI_VENDOR_ID_ATI, 0x5964, + 0x148c, 0x2073, 4}, + /* ATI Host Bridge / RV280 [M9+] Needs AGPMode 1 (phoronix forum) */ + { PCI_VENDOR_ID_ATI, 0xcbb2, PCI_VENDOR_ID_ATI, 0x5c61, + PCI_VENDOR_ID_SONY, 0x8175, 1}, + { 0, 0, 0, 0, 0, 0, 0 }, +}; + +struct radeon_agp_head *radeon_agp_head_init(struct drm_device *dev) +{ + struct pci_dev *pdev = to_pci_dev(dev->dev); + struct radeon_agp_head *head = NULL; + + head = kzalloc(sizeof(*head), GFP_KERNEL); + if (!head) + return NULL; + head->bridge = agp_find_bridge(pdev); + if (!head->bridge) { + head->bridge = agp_backend_acquire(pdev); + if (!head->bridge) { + kfree(head); + return NULL; + } + agp_copy_info(head->bridge, &head->agp_info); + agp_backend_release(head->bridge); + } else { + agp_copy_info(head->bridge, &head->agp_info); + } + if (head->agp_info.chipset == NOT_SUPPORTED) { + kfree(head); + return NULL; + } + INIT_LIST_HEAD(&head->memory); + head->cant_use_aperture = head->agp_info.cant_use_aperture; + head->page_mask = head->agp_info.page_mask; + head->base = head->agp_info.aper_base; + + return head; +} + +static int radeon_agp_head_acquire(struct radeon_device *rdev) +{ + struct drm_device *dev = rdev->ddev; + struct pci_dev *pdev = to_pci_dev(dev->dev); + + if (!rdev->agp) + return -ENODEV; + if (rdev->agp->acquired) + return -EBUSY; + rdev->agp->bridge = agp_backend_acquire(pdev); + if (!rdev->agp->bridge) + return -ENODEV; + rdev->agp->acquired = 1; + return 0; +} + +static int radeon_agp_head_release(struct radeon_device *rdev) +{ + if (!rdev->agp || !rdev->agp->acquired) + return -EINVAL; + agp_backend_release(rdev->agp->bridge); + rdev->agp->acquired = 0; + return 0; +} + +static int radeon_agp_head_enable(struct radeon_device *rdev, struct radeon_agp_mode mode) +{ + if (!rdev->agp || !rdev->agp->acquired) + return -EINVAL; + + rdev->agp->mode = mode.mode; + agp_enable(rdev->agp->bridge, mode.mode); + rdev->agp->enabled = 1; + return 0; +} + +static int radeon_agp_head_info(struct radeon_device *rdev, struct radeon_agp_info *info) +{ + struct agp_kern_info *kern; + + if (!rdev->agp || !rdev->agp->acquired) + return -EINVAL; + + kern = &rdev->agp->agp_info; + info->agp_version_major = kern->version.major; + info->agp_version_minor = kern->version.minor; + info->mode = kern->mode; + info->aperture_base = kern->aper_base; + info->aperture_size = kern->aper_size * 1024 * 1024; + info->memory_allowed = kern->max_memory << PAGE_SHIFT; + info->memory_used = kern->current_memory << PAGE_SHIFT; + info->id_vendor = kern->device->vendor; + info->id_device = kern->device->device; + + return 0; +} +#endif + +int radeon_agp_init(struct radeon_device *rdev) +{ +#if IS_ENABLED(CONFIG_AGP) + struct radeon_agpmode_quirk *p = radeon_agpmode_quirk_list; + struct radeon_agp_mode mode; + struct radeon_agp_info info; + uint32_t agp_status; + int default_mode; + bool is_v3; + int ret; + + /* Acquire AGP. */ + ret = radeon_agp_head_acquire(rdev); + if (ret) { + DRM_ERROR("Unable to acquire AGP: %d\n", ret); + return ret; + } + + ret = radeon_agp_head_info(rdev, &info); + if (ret) { + radeon_agp_head_release(rdev); + DRM_ERROR("Unable to get AGP info: %d\n", ret); + return ret; + } + + if (rdev->agp->agp_info.aper_size < 32) { + radeon_agp_head_release(rdev); + dev_warn(rdev->dev, "AGP aperture too small (%zuM) " + "need at least 32M, disabling AGP\n", + rdev->agp->agp_info.aper_size); + return -EINVAL; + } + + mode.mode = info.mode; + /* chips with the agp to pcie bridge don't have the AGP_STATUS register + * Just use the whatever mode the host sets up. + */ + if (rdev->family <= CHIP_RV350) + agp_status = (RREG32(RADEON_AGP_STATUS) | RADEON_AGPv3_MODE) & mode.mode; + else + agp_status = mode.mode; + is_v3 = !!(agp_status & RADEON_AGPv3_MODE); + + if (is_v3) { + default_mode = (agp_status & RADEON_AGPv3_8X_MODE) ? 8 : 4; + } else { + if (agp_status & RADEON_AGP_4X_MODE) { + default_mode = 4; + } else if (agp_status & RADEON_AGP_2X_MODE) { + default_mode = 2; + } else { + default_mode = 1; + } + } + + /* Apply AGPMode Quirks */ + while (p && p->chip_device != 0) { + if (info.id_vendor == p->hostbridge_vendor && + info.id_device == p->hostbridge_device && + rdev->pdev->vendor == p->chip_vendor && + rdev->pdev->device == p->chip_device && + rdev->pdev->subsystem_vendor == p->subsys_vendor && + rdev->pdev->subsystem_device == p->subsys_device) { + default_mode = p->default_mode; + } + ++p; + } + + if (radeon_agpmode > 0) { + if ((radeon_agpmode < (is_v3 ? 4 : 1)) || + (radeon_agpmode > (is_v3 ? 8 : 4)) || + (radeon_agpmode & (radeon_agpmode - 1))) { + DRM_ERROR("Illegal AGP Mode: %d (valid %s), leaving at %d\n", + radeon_agpmode, is_v3 ? "4, 8" : "1, 2, 4", + default_mode); + radeon_agpmode = default_mode; + } else { + DRM_INFO("AGP mode requested: %d\n", radeon_agpmode); + } + } else { + radeon_agpmode = default_mode; + } + + mode.mode &= ~RADEON_AGP_MODE_MASK; + if (is_v3) { + switch (radeon_agpmode) { + case 8: + mode.mode |= RADEON_AGPv3_8X_MODE; + break; + case 4: + default: + mode.mode |= RADEON_AGPv3_4X_MODE; + break; + } + } else { + switch (radeon_agpmode) { + case 4: + mode.mode |= RADEON_AGP_4X_MODE; + break; + case 2: + mode.mode |= RADEON_AGP_2X_MODE; + break; + case 1: + default: + mode.mode |= RADEON_AGP_1X_MODE; + break; + } + } + + mode.mode &= ~RADEON_AGP_FW_MODE; /* disable fw */ + ret = radeon_agp_head_enable(rdev, mode); + if (ret) { + DRM_ERROR("Unable to enable AGP (mode = 0x%lx)\n", mode.mode); + radeon_agp_head_release(rdev); + return ret; + } + + rdev->mc.agp_base = rdev->agp->agp_info.aper_base; + rdev->mc.gtt_size = rdev->agp->agp_info.aper_size << 20; + rdev->mc.gtt_start = rdev->mc.agp_base; + rdev->mc.gtt_end = rdev->mc.gtt_start + rdev->mc.gtt_size - 1; + dev_info(rdev->dev, "GTT: %lluM 0x%08llX - 0x%08llX\n", + rdev->mc.gtt_size >> 20, rdev->mc.gtt_start, rdev->mc.gtt_end); + + /* workaround some hw issues */ + if (rdev->family < CHIP_R200) { + WREG32(RADEON_AGP_CNTL, RREG32(RADEON_AGP_CNTL) | 0x000e0000); + } + return 0; +#else + return 0; +#endif +} + +void radeon_agp_resume(struct radeon_device *rdev) +{ +#if IS_ENABLED(CONFIG_AGP) + int r; + if (rdev->flags & RADEON_IS_AGP) { + r = radeon_agp_init(rdev); + if (r) + dev_warn(rdev->dev, "radeon AGP reinit failed\n"); + } +#endif +} + +void radeon_agp_fini(struct radeon_device *rdev) +{ +#if IS_ENABLED(CONFIG_AGP) + if (rdev->agp && rdev->agp->acquired) { + radeon_agp_head_release(rdev); + } +#endif +} + +void radeon_agp_suspend(struct radeon_device *rdev) +{ + radeon_agp_fini(rdev); +} |