Signed-off-by: Thomas Zimmermann <[email protected]>
---
drivers/gpu/drm/mgag200/Kconfig | 1 +
drivers/gpu/drm/mgag200/mgag200_drv.h | 6 +-
drivers/gpu/drm/mgag200/mgag200_ttm.c | 120 ++------------------------
3 files changed, 12 insertions(+), 115 deletions(-)
diff --git a/drivers/gpu/drm/mgag200/Kconfig b/drivers/gpu/drm/mgag200/Kconfig
index b5eed4e0e452..6d2c45147caa 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_TTM_HELPER
+ select DRM_SIMPLE_TTM_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.h
b/drivers/gpu/drm/mgag200/mgag200_drv.h
index a3110a0066b9..228c433fd151 100644
--- a/drivers/gpu/drm/mgag200/mgag200_drv.h
+++ b/drivers/gpu/drm/mgag200/mgag200_drv.h
@@ -26,6 +26,8 @@
#include <drm/drm_gem.h>
#include <drm/drm_gem_ttm_helper.h>
+#include <drm/drm_simple_ttm_helper.h>
+
#include <linux/i2c.h>
#include <linux/i2c-algo-bit.h>
@@ -212,9 +214,7 @@ struct mga_device {
int fb_mtrr;
- struct {
- struct ttm_bo_device bdev;
- } ttm;
+ struct drm_simple_ttm ttm;
/* SE model number stored in reg 0x1e24 */
u32 unique_rev_id;
diff --git a/drivers/gpu/drm/mgag200/mgag200_ttm.c
b/drivers/gpu/drm/mgag200/mgag200_ttm.c
index 34a5c58bde68..ffb2c340f6f8 100644
--- a/drivers/gpu/drm/mgag200/mgag200_ttm.c
+++ b/drivers/gpu/drm/mgag200/mgag200_ttm.c
@@ -30,126 +30,22 @@
#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,
+static const struct drm_simple_ttm_funcs mgag200_simple_ttm_funcs = {
.evict_flags = drm_gem_ttm_bo_driver_evict_flags,
- .move = NULL,
- .verify_access = drm_gem_ttm_bo_driver_verify_access,
- .io_mem_reserve = &mgag200_ttm_io_mem_reserve,
- .io_mem_free = &mgag200_ttm_io_mem_free,
+ .verify_access = drm_gem_ttm_bo_driver_verify_access
};
int mgag200_mm_init(struct mga_device *mdev)
{
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);
+ ret = drm_simple_ttm_init(&mdev->ttm, dev,
+ pci_resource_start(dev->pdev, 0),
+ mdev->mc.vram_size,
+ &mgag200_simple_ttm_funcs);
if (ret) {
- DRM_ERROR("Failed ttm VRAM init: %d\n", ret);
+ DRM_ERROR("Error initializing Simple TTM; %d\n", ret);
return ret;
}
@@ -166,7 +62,7 @@ void mgag200_mm_fini(struct mga_device *mdev)
{
struct drm_device *dev = mdev->dev;
- ttm_bo_device_release(&mdev->ttm.bdev);
+ drm_simple_ttm_cleanup(&mdev->ttm);
arch_io_free_memtype_wc(pci_resource_start(dev->pdev, 0),
pci_resource_len(dev->pdev, 0));
--
2.21.0
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