The data structure |struct drm_vram_mm| and its helpers replace mgag200's TTM-based memory manager. It's the same implementation; except for the type names.
v3: * use drm_gem_vram_mm_funcs * convert driver to drm_device-based instance v2: * implement mgag200_mmap() with drm_vram_mm_mmap()
Signed-off-by: Thomas Zimmermann tzimmermann@suse.de --- drivers/gpu/drm/mgag200/Kconfig | 1 + drivers/gpu/drm/mgag200/mgag200_drv.c | 13 +-- drivers/gpu/drm/mgag200/mgag200_drv.h | 11 +- drivers/gpu/drm/mgag200/mgag200_main.c | 17 +--- drivers/gpu/drm/mgag200/mgag200_ttm.c | 133 ++----------------------- 5 files changed, 16 insertions(+), 159 deletions(-)
diff --git a/drivers/gpu/drm/mgag200/Kconfig b/drivers/gpu/drm/mgag200/Kconfig index 52b7c3ee3064..8368fc5f4ca9 100644 --- a/drivers/gpu/drm/mgag200/Kconfig +++ b/drivers/gpu/drm/mgag200/Kconfig @@ -4,6 +4,7 @@ config DRM_MGAG200 select DRM_KMS_HELPER select DRM_TTM select DRM_GEM_VRAM_HELPER + select DRM_VRAM_MM_HELPER help This is a KMS driver for the MGA G200 server chips, it does not support the original MGA G200 or any of the desktop diff --git a/drivers/gpu/drm/mgag200/mgag200_drv.c b/drivers/gpu/drm/mgag200/mgag200_drv.c index 85c3ed7f0385..93bd1589e50e 100644 --- a/drivers/gpu/drm/mgag200/mgag200_drv.c +++ b/drivers/gpu/drm/mgag200/mgag200_drv.c @@ -59,13 +59,7 @@ static void mga_pci_remove(struct pci_dev *pdev)
static const struct file_operations mgag200_driver_fops = { .owner = THIS_MODULE, - .open = drm_open, - .release = drm_release, - .unlocked_ioctl = drm_ioctl, - .mmap = mgag200_mmap, - .poll = drm_poll, - .compat_ioctl = drm_compat_ioctl, - .read = drm_read, + DRM_VRAM_MM_FILE_OPERATIONS };
static struct drm_driver driver = { @@ -79,10 +73,7 @@ static struct drm_driver driver = { .major = DRIVER_MAJOR, .minor = DRIVER_MINOR, .patchlevel = DRIVER_PATCHLEVEL, - - .gem_free_object_unlocked = drm_gem_vram_driver_gem_free_object_unlocked, - .dumb_create = mgag200_dumb_create, - .dumb_map_offset = drm_gem_vram_driver_dumb_mmap_offset, + DRM_GEM_VRAM_DRIVER };
static struct pci_driver mgag200_pci_driver = { diff --git a/drivers/gpu/drm/mgag200/mgag200_drv.h b/drivers/gpu/drm/mgag200/mgag200_drv.h index 86b33e23ab7f..16ce6b338dce 100644 --- a/drivers/gpu/drm/mgag200/mgag200_drv.h +++ b/drivers/gpu/drm/mgag200/mgag200_drv.h @@ -17,15 +17,12 @@
#include <drm/drm_encoder.h> #include <drm/drm_fb_helper.h> -#include <drm/ttm/ttm_bo_api.h> -#include <drm/ttm/ttm_bo_driver.h> -#include <drm/ttm/ttm_placement.h> -#include <drm/ttm/ttm_memory.h> -#include <drm/ttm/ttm_module.h>
#include <drm/drm_gem.h> #include <drm/drm_gem_vram_helper.h>
+#include <drm/drm_vram_mm_helper.h> + #include <linux/i2c.h> #include <linux/i2c-algo-bit.h>
@@ -212,10 +209,6 @@ struct mga_device {
int fb_mtrr;
- struct { - struct ttm_bo_device bdev; - } ttm; - /* SE model number stored in reg 0x1e24 */ u32 unique_rev_id; }; diff --git a/drivers/gpu/drm/mgag200/mgag200_main.c b/drivers/gpu/drm/mgag200/mgag200_main.c index 59a4028a5c6c..f3687fed4075 100644 --- a/drivers/gpu/drm/mgag200/mgag200_main.c +++ b/drivers/gpu/drm/mgag200/mgag200_main.c @@ -230,10 +230,10 @@ int mgag200_driver_load(struct drm_device *dev, unsigned long flags) }
/* Make small buffers to store a hardware cursor (double buffered icon updates) */ - mdev->cursor.pixels_1 = drm_gem_vram_create(dev, &mdev->ttm.bdev, + mdev->cursor.pixels_1 = drm_gem_vram_create(dev, &dev->vram_mm->bdev, roundup(48*64, PAGE_SIZE), 0, 0); - mdev->cursor.pixels_2 = drm_gem_vram_create(dev, &mdev->ttm.bdev, + mdev->cursor.pixels_2 = drm_gem_vram_create(dev, &dev->vram_mm->bdev, roundup(48*64, PAGE_SIZE), 0, 0); if (IS_ERR(mdev->cursor.pixels_2) || IS_ERR(mdev->cursor.pixels_1)) { @@ -274,7 +274,6 @@ int mgag200_gem_create(struct drm_device *dev, u32 size, bool iskernel, struct drm_gem_object **obj) { - struct mga_device *mdev = dev->dev_private; struct drm_gem_vram_object *gbo; int ret;
@@ -284,7 +283,7 @@ int mgag200_gem_create(struct drm_device *dev, if (size == 0) return -EINVAL;
- gbo = drm_gem_vram_create(dev, &mdev->ttm.bdev, size, 0, false); + gbo = drm_gem_vram_create(dev, &dev->vram_mm->bdev, size, 0, false); if (IS_ERR(gbo)) { ret = PTR_ERR(gbo); if (ret != -ERESTARTSYS) @@ -294,13 +293,3 @@ int mgag200_gem_create(struct drm_device *dev, *obj = &gbo->gem; return 0; } - -int mgag200_dumb_create(struct drm_file *file, - struct drm_device *dev, - struct drm_mode_create_dumb *args) -{ - struct mga_device *mdev = dev->dev_private; - - return drm_gem_vram_fill_create_dumb(file, dev, &mdev->ttm.bdev, 0, - false, args); -} diff --git a/drivers/gpu/drm/mgag200/mgag200_ttm.c b/drivers/gpu/drm/mgag200/mgag200_ttm.c index 2c0249086bf9..59294c0fd24a 100644 --- a/drivers/gpu/drm/mgag200/mgag200_ttm.c +++ b/drivers/gpu/drm/mgag200/mgag200_ttm.c @@ -26,130 +26,21 @@ * Authors: Dave Airlie airlied@redhat.com */ #include <drm/drmP.h> -#include <drm/ttm/ttm_page_alloc.h>
#include "mgag200_drv.h"
-static inline struct mga_device * -mgag200_bdev(struct ttm_bo_device *bd) -{ - return container_of(bd, struct mga_device, ttm.bdev); -} - -static int -mgag200_bo_init_mem_type(struct ttm_bo_device *bdev, uint32_t type, - struct ttm_mem_type_manager *man) -{ - switch (type) { - case TTM_PL_SYSTEM: - man->flags = TTM_MEMTYPE_FLAG_MAPPABLE; - man->available_caching = TTM_PL_MASK_CACHING; - man->default_caching = TTM_PL_FLAG_CACHED; - break; - case TTM_PL_VRAM: - man->func = &ttm_bo_manager_func; - man->flags = TTM_MEMTYPE_FLAG_FIXED | - TTM_MEMTYPE_FLAG_MAPPABLE; - man->available_caching = TTM_PL_FLAG_UNCACHED | - TTM_PL_FLAG_WC; - man->default_caching = TTM_PL_FLAG_WC; - break; - default: - DRM_ERROR("Unsupported memory type %u\n", (unsigned)type); - return -EINVAL; - } - return 0; -} - -static int mgag200_ttm_io_mem_reserve(struct ttm_bo_device *bdev, - struct ttm_mem_reg *mem) -{ - struct ttm_mem_type_manager *man = &bdev->man[mem->mem_type]; - struct mga_device *mdev = mgag200_bdev(bdev); - - mem->bus.addr = NULL; - mem->bus.offset = 0; - mem->bus.size = mem->num_pages << PAGE_SHIFT; - mem->bus.base = 0; - mem->bus.is_iomem = false; - if (!(man->flags & TTM_MEMTYPE_FLAG_MAPPABLE)) - return -EINVAL; - switch (mem->mem_type) { - case TTM_PL_SYSTEM: - /* system memory */ - return 0; - case TTM_PL_VRAM: - mem->bus.offset = mem->start << PAGE_SHIFT; - mem->bus.base = pci_resource_start(mdev->dev->pdev, 0); - mem->bus.is_iomem = true; - break; - default: - return -EINVAL; - break; - } - return 0; -} - -static void mgag200_ttm_io_mem_free(struct ttm_bo_device *bdev, struct ttm_mem_reg *mem) -{ -} - -static void mgag200_ttm_backend_destroy(struct ttm_tt *tt) -{ - ttm_tt_fini(tt); - kfree(tt); -} - -static struct ttm_backend_func mgag200_tt_backend_func = { - .destroy = &mgag200_ttm_backend_destroy, -}; - - -static struct ttm_tt *mgag200_ttm_tt_create(struct ttm_buffer_object *bo, - uint32_t page_flags) -{ - struct ttm_tt *tt; - - tt = kzalloc(sizeof(struct ttm_tt), GFP_KERNEL); - if (tt == NULL) - return NULL; - tt->func = &mgag200_tt_backend_func; - if (ttm_tt_init(tt, bo, page_flags)) { - kfree(tt); - return NULL; - } - return tt; -} - -struct ttm_bo_driver mgag200_bo_driver = { - .ttm_tt_create = mgag200_ttm_tt_create, - .init_mem_type = mgag200_bo_init_mem_type, - .eviction_valuable = ttm_bo_eviction_valuable, - .evict_flags = drm_gem_vram_bo_driver_evict_flags, - .move = NULL, - .verify_access = drm_gem_vram_bo_driver_verify_access, - .io_mem_reserve = &mgag200_ttm_io_mem_reserve, - .io_mem_free = &mgag200_ttm_io_mem_free, -}; - int mgag200_mm_init(struct mga_device *mdev) { + struct drm_vram_mm *vmm; int ret; struct drm_device *dev = mdev->dev; - struct ttm_bo_device *bdev = &mdev->ttm.bdev; - - ret = ttm_bo_device_init(&mdev->ttm.bdev, - &mgag200_bo_driver, - dev->anon_inode->i_mapping, - true); - if (ret) { - DRM_ERROR("Error initialising bo driver; %d\n", ret); - return ret; - }
- ret = ttm_bo_init_mm(bdev, TTM_PL_VRAM, mdev->mc.vram_size >> PAGE_SHIFT); - if (ret) { - DRM_ERROR("Failed ttm VRAM init: %d\n", ret); + vmm = drm_vram_helper_alloc_mm(dev, pci_resource_start(dev->pdev, 0), + mdev->mc.vram_size, + &drm_gem_vram_mm_funcs); + if (IS_ERR(vmm)) { + ret = PTR_ERR(vmm); + DRM_ERROR("Error initializing VRAM MM; %d\n", ret); return ret; }
@@ -166,18 +57,10 @@ void mgag200_mm_fini(struct mga_device *mdev) { struct drm_device *dev = mdev->dev;
- ttm_bo_device_release(&mdev->ttm.bdev); + drm_vram_helper_release_mm(dev);
arch_io_free_memtype_wc(pci_resource_start(dev->pdev, 0), pci_resource_len(dev->pdev, 0)); arch_phys_wc_del(mdev->fb_mtrr); mdev->fb_mtrr = 0; } - -int mgag200_mmap(struct file *filp, struct vm_area_struct *vma) -{ - struct drm_file *file_priv = filp->private_data; - struct mga_device *mdev = file_priv->minor->dev->dev_private; - - return ttm_bo_mmap(filp, vma, &mdev->ttm.bdev); -}