diff options
Diffstat (limited to 'drivers/gpu/drm/radeon/radeon_agp.c')
| -rw-r--r-- | drivers/gpu/drm/radeon/radeon_agp.c | 118 |
1 files changed, 103 insertions, 15 deletions
diff --git a/drivers/gpu/drm/radeon/radeon_agp.c b/drivers/gpu/drm/radeon/radeon_agp.c index 0aca7bdf54c7..d124600b5f58 100644 --- a/drivers/gpu/drm/radeon/radeon_agp.c +++ b/drivers/gpu/drm/radeon/radeon_agp.c @@ -27,7 +27,6 @@ #include <linux/pci.h> -#include <drm/drm_agpsupport.h> #include <drm/drm_device.h> #include <drm/radeon_drm.h> @@ -127,38 +126,127 @@ static struct radeon_agpmode_quirk radeon_agpmode_quirk_list[] = { 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 drm_agp_mode mode; - struct drm_agp_info info; + 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 = drm_agp_acquire(rdev->ddev); + ret = radeon_agp_head_acquire(rdev); if (ret) { DRM_ERROR("Unable to acquire AGP: %d\n", ret); return ret; } - ret = drm_agp_info(rdev->ddev, &info); + ret = radeon_agp_head_info(rdev, &info); if (ret) { - drm_agp_release(rdev->ddev); + radeon_agp_head_release(rdev); DRM_ERROR("Unable to get AGP info: %d\n", ret); return ret; } - if (rdev->ddev->agp->agp_info.aper_size < 32) { - drm_agp_release(rdev->ddev); + 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->ddev->agp->agp_info.aper_size); + rdev->agp->agp_info.aper_size); return -EINVAL; } @@ -239,15 +327,15 @@ int radeon_agp_init(struct radeon_device *rdev) } mode.mode &= ~RADEON_AGP_FW_MODE; /* disable fw */ - ret = drm_agp_enable(rdev->ddev, mode); + ret = radeon_agp_head_enable(rdev, mode); if (ret) { DRM_ERROR("Unable to enable AGP (mode = 0x%lx)\n", mode.mode); - drm_agp_release(rdev->ddev); + radeon_agp_head_release(rdev); return ret; } - rdev->mc.agp_base = rdev->ddev->agp->agp_info.aper_base; - rdev->mc.gtt_size = rdev->ddev->agp->agp_info.aper_size << 20; + 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", @@ -278,8 +366,8 @@ void radeon_agp_resume(struct radeon_device *rdev) void radeon_agp_fini(struct radeon_device *rdev) { #if IS_ENABLED(CONFIG_AGP) - if (rdev->ddev->agp && rdev->ddev->agp->acquired) { - drm_agp_release(rdev->ddev); + if (rdev->agp && rdev->agp->acquired) { + radeon_agp_head_release(rdev); } #endif } |