depends on DRM && PCI && MMU
select DRM_TTM
select DRM_KMS_HELPER
- select DRM_TTM
+ select DRM_VRAM_HELPER
help
Say yes for experimental AST GPU driver. Do not enable
this driver without having a working -modesetting,
.minor = DRIVER_MINOR,
.patchlevel = DRIVER_PATCHLEVEL,
- .gem_free_object_unlocked = ast_gem_free_object,
+ .gem_free_object_unlocked =
+ drm_gem_vram_driver_gem_free_object_unlocked,
.dumb_create = ast_dumb_create,
- .dumb_map_offset = ast_dumb_mmap_offset,
+ .dumb_map_offset = drm_gem_vram_driver_dumb_mmap_offset,
};
#include <drm/ttm/ttm_module.h>
#include <drm/drm_gem.h>
+#include <drm/drm_gem_vram_helper.h>
#include <linux/i2c.h>
#include <linux/i2c-algo-bit.h>
void ast_fbdev_set_suspend(struct drm_device *dev, int state);
void ast_fbdev_set_base(struct ast_private *ast, unsigned long gpu_addr);
-struct ast_bo {
- struct ttm_buffer_object bo;
- struct ttm_placement placement;
- struct ttm_bo_kmap_obj kmap;
- struct drm_gem_object gem;
- struct ttm_place placements[3];
- int pin_count;
-};
-#define gem_to_ast_bo(gobj) container_of((gobj), struct ast_bo, gem)
-
-static inline struct ast_bo *
-ast_bo(struct ttm_buffer_object *bo)
-{
- return container_of(bo, struct ast_bo, bo);
-}
-
-
-#define to_ast_obj(x) container_of(x, struct ast_gem_object, base)
-
#define AST_MM_ALIGN_SHIFT 4
#define AST_MM_ALIGN_MASK ((1 << AST_MM_ALIGN_SHIFT) - 1)
struct drm_device *dev,
struct drm_mode_create_dumb *args);
-extern void ast_gem_free_object(struct drm_gem_object *obj);
-extern int ast_dumb_mmap_offset(struct drm_file *file,
- struct drm_device *dev,
- uint32_t handle,
- uint64_t *offset);
-
int ast_mm_init(struct ast_private *ast);
void ast_mm_fini(struct ast_private *ast);
-int ast_bo_create(struct drm_device *dev, int size, int align,
- uint32_t flags, struct ast_bo **pastbo);
-
int ast_gem_create(struct drm_device *dev,
u32 size, bool iskernel,
struct drm_gem_object **obj);
-int ast_bo_pin(struct ast_bo *bo, u32 pl_flag, u64 *gpu_addr);
-int ast_bo_unpin(struct ast_bo *bo);
-
-static inline int ast_bo_reserve(struct ast_bo *bo, bool no_wait)
-{
- int ret;
-
- ret = ttm_bo_reserve(&bo->bo, true, no_wait, NULL);
- if (ret) {
- if (ret != -ERESTARTSYS && ret != -EBUSY)
- DRM_ERROR("reserve failed %p\n", bo);
- return ret;
- }
- return 0;
-}
-
-static inline void ast_bo_unreserve(struct ast_bo *bo)
-{
- ttm_bo_unreserve(&bo->bo);
-}
-
-void ast_ttm_placement(struct ast_bo *bo, int domain);
-int ast_bo_push_sysram(struct ast_bo *bo);
int ast_mmap(struct file *filp, struct vm_area_struct *vma);
/* ast post */
{
int i;
struct drm_gem_object *obj;
- struct ast_bo *bo;
+ struct drm_gem_vram_object *gbo;
int src_offset, dst_offset;
int bpp = afbdev->afb.base.format->cpp[0];
int ret = -EBUSY;
unsigned long flags;
obj = afbdev->afb.obj;
- bo = gem_to_ast_bo(obj);
+ gbo = drm_gem_vram_of_gem(obj);
/*
* try and reserve the BO, if we fail with busy
* store up the damage until later.
*/
if (drm_can_sleep())
- ret = ast_bo_reserve(bo, true);
+ ret = drm_gem_vram_reserve(gbo, true);
if (ret) {
if (ret != -EBUSY)
return;
afbdev->x2 = afbdev->y2 = 0;
spin_unlock_irqrestore(&afbdev->dirty_lock, flags);
- if (!bo->kmap.virtual) {
- ret = ttm_bo_kmap(&bo->bo, 0, bo->bo.num_pages, &bo->kmap);
+ if (!gbo->kmap.virtual) {
+ ret = ttm_bo_kmap(&gbo->bo, 0, gbo->bo.num_pages, &gbo->kmap);
if (ret) {
DRM_ERROR("failed to kmap fb updates\n");
- ast_bo_unreserve(bo);
+ drm_gem_vram_unreserve(gbo);
return;
}
unmap = true;
}
for (i = y; i <= y2; i++) {
/* assume equal stride for now */
- src_offset = dst_offset = i * afbdev->afb.base.pitches[0] + (x * bpp);
- memcpy_toio(bo->kmap.virtual + src_offset, afbdev->sysram + src_offset, (x2 - x + 1) * bpp);
+ src_offset = dst_offset =
+ i * afbdev->afb.base.pitches[0] + (x * bpp);
+ memcpy_toio(gbo->kmap.virtual + src_offset,
+ afbdev->sysram + dst_offset,
+ (x2 - x + 1) * bpp);
}
if (unmap)
- ttm_bo_kunmap(&bo->kmap);
+ ttm_bo_kunmap(&gbo->kmap);
- ast_bo_unreserve(bo);
+ drm_gem_vram_unreserve(gbo);
}
static void ast_fillrect(struct fb_info *info,
u32 size, bool iskernel,
struct drm_gem_object **obj)
{
- struct ast_bo *astbo;
+ struct ast_private *ast = dev->dev_private;
+ struct drm_gem_vram_object *gbo;
int ret;
*obj = NULL;
if (size == 0)
return -EINVAL;
- ret = ast_bo_create(dev, size, 0, 0, &astbo);
- if (ret) {
+ gbo = drm_gem_vram_create(dev, &ast->ttm.bdev, size, 0, false);
+ if (IS_ERR(gbo)) {
+ ret = PTR_ERR(gbo);
if (ret != -ERESTARTSYS)
DRM_ERROR("failed to allocate GEM object\n");
return ret;
}
- *obj = &astbo->gem;
+ *obj = &gbo->gem;
return 0;
}
struct drm_device *dev,
struct drm_mode_create_dumb *args)
{
- int ret;
- struct drm_gem_object *gobj;
- u32 handle;
-
- args->pitch = args->width * ((args->bpp + 7) / 8);
- args->size = args->pitch * args->height;
-
- ret = ast_gem_create(dev, args->size, false,
- &gobj);
- if (ret)
- return ret;
-
- ret = drm_gem_handle_create(file, gobj, &handle);
- drm_gem_object_put_unlocked(gobj);
- if (ret)
- return ret;
-
- args->handle = handle;
- return 0;
-}
-
-static void ast_bo_unref(struct ast_bo **bo)
-{
- if ((*bo) == NULL)
- return;
- ttm_bo_put(&((*bo)->bo));
- *bo = NULL;
-}
-
-void ast_gem_free_object(struct drm_gem_object *obj)
-{
- struct ast_bo *ast_bo = gem_to_ast_bo(obj);
-
- ast_bo_unref(&ast_bo);
-}
-
-
-static inline u64 ast_bo_mmap_offset(struct ast_bo *bo)
-{
- return drm_vma_node_offset_addr(&bo->bo.vma_node);
-}
-int
-ast_dumb_mmap_offset(struct drm_file *file,
- struct drm_device *dev,
- uint32_t handle,
- uint64_t *offset)
-{
- struct drm_gem_object *obj;
- struct ast_bo *bo;
-
- obj = drm_gem_object_lookup(file, handle);
- if (obj == NULL)
- return -ENOENT;
-
- bo = gem_to_ast_bo(obj);
- *offset = ast_bo_mmap_offset(bo);
-
- drm_gem_object_put_unlocked(obj);
-
- return 0;
+ struct ast_private *ast = dev->dev_private;
+ return drm_gem_vram_fill_create_dumb(file, dev, &ast->ttm.bdev, 0,
+ false, args);
}
-
struct ast_private *ast = crtc->dev->dev_private;
struct drm_gem_object *obj;
struct ast_framebuffer *ast_fb;
- struct ast_bo *bo;
+ struct drm_gem_vram_object *gbo;
int ret;
- u64 gpu_addr;
+ s64 gpu_addr;
/* push the previous fb to system ram */
if (!atomic && fb) {
ast_fb = to_ast_framebuffer(fb);
obj = ast_fb->obj;
- bo = gem_to_ast_bo(obj);
- ret = ast_bo_reserve(bo, false);
+ gbo = drm_gem_vram_of_gem(obj);
+ ret = drm_gem_vram_reserve(gbo, false);
if (ret)
return ret;
- ast_bo_push_sysram(bo);
- ast_bo_unreserve(bo);
+ drm_gem_vram_push_to_system(gbo);
+ drm_gem_vram_unreserve(gbo);
}
ast_fb = to_ast_framebuffer(crtc->primary->fb);
obj = ast_fb->obj;
- bo = gem_to_ast_bo(obj);
+ gbo = drm_gem_vram_of_gem(obj);
- ret = ast_bo_reserve(bo, false);
+ ret = drm_gem_vram_reserve(gbo, false);
if (ret)
return ret;
- ret = ast_bo_pin(bo, TTM_PL_FLAG_VRAM, &gpu_addr);
- if (ret) {
- ast_bo_unreserve(bo);
- return ret;
+ ret = drm_gem_vram_pin(gbo, DRM_GEM_VRAM_PL_FLAG_VRAM);
+ if (ret)
+ goto err_drm_gem_vram_unreserve;
+ gpu_addr = drm_gem_vram_offset(gbo);
+ if (gpu_addr < 0) {
+ ret = (int)gpu_addr;
+ goto err_drm_gem_vram_unpin;
}
if (&ast->fbdev->afb == ast_fb) {
/* if pushing console in kmap it */
- ret = ttm_bo_kmap(&bo->bo, 0, bo->bo.num_pages, &bo->kmap);
+ ret = ttm_bo_kmap(&gbo->bo, 0, gbo->bo.num_pages, &gbo->kmap);
if (ret)
DRM_ERROR("failed to kmap fbcon\n");
else
ast_fbdev_set_base(ast, gpu_addr);
}
- ast_bo_unreserve(bo);
+ drm_gem_vram_unreserve(gbo);
ast_set_offset_reg(crtc);
ast_set_start_address_crt1(crtc, (u32)gpu_addr);
return 0;
+
+err_drm_gem_vram_unpin:
+ drm_gem_vram_unpin(gbo);
+err_drm_gem_vram_unreserve:
+ drm_gem_vram_unreserve(gbo);
+ return ret;
}
static int ast_crtc_mode_set_base(struct drm_crtc *crtc, int x, int y,
if (crtc->primary->fb) {
struct ast_framebuffer *ast_fb = to_ast_framebuffer(crtc->primary->fb);
struct drm_gem_object *obj = ast_fb->obj;
- struct ast_bo *bo = gem_to_ast_bo(obj);
+ struct drm_gem_vram_object *gbo = drm_gem_vram_of_gem(obj);
- ret = ast_bo_reserve(bo, false);
+ ret = drm_gem_vram_reserve(gbo, false);
if (ret)
return;
-
- ast_bo_push_sysram(bo);
- ast_bo_unreserve(bo);
+ drm_gem_vram_push_to_system(gbo);
+ drm_gem_vram_unreserve(gbo);
}
crtc->primary->fb = NULL;
}
int size;
int ret;
struct drm_gem_object *obj;
- struct ast_bo *bo;
- uint64_t gpu_addr;
+ struct drm_gem_vram_object *gbo;
+ s64 gpu_addr;
size = (AST_HWC_SIZE + AST_HWC_SIGNATURE_SIZE) * AST_DEFAULT_HWC_NUM;
ret = ast_gem_create(dev, size, true, &obj);
if (ret)
return ret;
- bo = gem_to_ast_bo(obj);
- ret = ast_bo_reserve(bo, false);
+ gbo = drm_gem_vram_of_gem(obj);
+ ret = drm_gem_vram_reserve(gbo, false);
if (unlikely(ret != 0))
goto fail;
- ret = ast_bo_pin(bo, TTM_PL_FLAG_VRAM, &gpu_addr);
- ast_bo_unreserve(bo);
+ ret = drm_gem_vram_pin(gbo, DRM_GEM_VRAM_PL_FLAG_VRAM);
+ drm_gem_vram_unreserve(gbo);
if (ret)
goto fail;
+ gpu_addr = drm_gem_vram_offset(gbo);
+ if (gpu_addr < 0) {
+ drm_gem_vram_unpin(gbo);
+ ret = (int)gpu_addr;
+ goto fail;
+ }
/* kmap the object */
- ret = ttm_bo_kmap(&bo->bo, 0, bo->bo.num_pages, &ast->cache_kmap);
+ ret = ttm_bo_kmap(&gbo->bo, 0, gbo->bo.num_pages, &ast->cache_kmap);
if (ret)
goto fail;
struct ast_private *ast = crtc->dev->dev_private;
struct ast_crtc *ast_crtc = to_ast_crtc(crtc);
struct drm_gem_object *obj;
- struct ast_bo *bo;
- uint64_t gpu_addr;
+ struct drm_gem_vram_object *gbo;
+ s64 gpu_addr;
u32 csum;
int ret;
struct ttm_bo_kmap_obj uobj_map;
DRM_ERROR("Cannot find cursor object %x for crtc\n", handle);
return -ENOENT;
}
- bo = gem_to_ast_bo(obj);
+ gbo = drm_gem_vram_of_gem(obj);
- ret = ast_bo_reserve(bo, false);
+ ret = drm_gem_vram_reserve(gbo, false);
if (ret)
goto fail;
- ret = ttm_bo_kmap(&bo->bo, 0, bo->bo.num_pages, &uobj_map);
+ ret = ttm_bo_kmap(&gbo->bo, 0, gbo->bo.num_pages, &uobj_map);
src = ttm_kmap_obj_virtual(&uobj_map, &src_isiomem);
dst = ttm_kmap_obj_virtual(&ast->cache_kmap, &dst_isiomem);
/* write checksum + signature */
ttm_bo_kunmap(&uobj_map);
- ast_bo_unreserve(bo);
+ drm_gem_vram_unreserve(gbo);
{
u8 *dst = (u8 *)ast->cache_kmap.virtual + (AST_HWC_SIZE + AST_HWC_SIGNATURE_SIZE)*ast->next_cursor + AST_HWC_SIZE;
writel(csum, dst);
return container_of(bd, struct ast_private, ttm.bdev);
}
-static void ast_bo_ttm_destroy(struct ttm_buffer_object *tbo)
-{
- struct ast_bo *bo;
-
- bo = container_of(tbo, struct ast_bo, bo);
-
- drm_gem_object_release(&bo->gem);
- kfree(bo);
-}
-
-static bool ast_ttm_bo_is_ast_bo(struct ttm_buffer_object *bo)
-{
- if (bo->destroy == &ast_bo_ttm_destroy)
- return true;
- return false;
-}
-
static int
ast_bo_init_mem_type(struct ttm_bo_device *bdev, uint32_t type,
struct ttm_mem_type_manager *man)
return 0;
}
-static void
-ast_bo_evict_flags(struct ttm_buffer_object *bo, struct ttm_placement *pl)
-{
- struct ast_bo *astbo = ast_bo(bo);
-
- if (!ast_ttm_bo_is_ast_bo(bo))
- return;
-
- ast_ttm_placement(astbo, TTM_PL_FLAG_SYSTEM);
- *pl = astbo->placement;
-}
-
-static int ast_bo_verify_access(struct ttm_buffer_object *bo, struct file *filp)
-{
- struct ast_bo *astbo = ast_bo(bo);
-
- return drm_vma_node_verify_access(&astbo->gem.vma_node,
- filp->private_data);
-}
-
static int ast_ttm_io_mem_reserve(struct ttm_bo_device *bdev,
struct ttm_mem_reg *mem)
{
.ttm_tt_create = ast_ttm_tt_create,
.init_mem_type = ast_bo_init_mem_type,
.eviction_valuable = ttm_bo_eviction_valuable,
- .evict_flags = ast_bo_evict_flags,
+ .evict_flags = drm_gem_vram_bo_driver_evict_flags,
.move = NULL,
- .verify_access = ast_bo_verify_access,
+ .verify_access = drm_gem_vram_bo_driver_verify_access,
.io_mem_reserve = &ast_ttm_io_mem_reserve,
.io_mem_free = &ast_ttm_io_mem_free,
};
pci_resource_len(dev->pdev, 0));
}
-void ast_ttm_placement(struct ast_bo *bo, int domain)
-{
- u32 c = 0;
- unsigned i;
-
- bo->placement.placement = bo->placements;
- bo->placement.busy_placement = bo->placements;
- if (domain & TTM_PL_FLAG_VRAM)
- bo->placements[c++].flags = TTM_PL_FLAG_WC | TTM_PL_FLAG_UNCACHED | TTM_PL_FLAG_VRAM;
- if (domain & TTM_PL_FLAG_SYSTEM)
- bo->placements[c++].flags = TTM_PL_FLAG_CACHED | TTM_PL_FLAG_SYSTEM;
- if (!c)
- bo->placements[c++].flags = TTM_PL_FLAG_CACHED | TTM_PL_FLAG_SYSTEM;
- bo->placement.num_placement = c;
- bo->placement.num_busy_placement = c;
- for (i = 0; i < c; ++i) {
- bo->placements[i].fpfn = 0;
- bo->placements[i].lpfn = 0;
- }
-}
-
-int ast_bo_create(struct drm_device *dev, int size, int align,
- uint32_t flags, struct ast_bo **pastbo)
-{
- struct ast_private *ast = dev->dev_private;
- struct ast_bo *astbo;
- size_t acc_size;
- int ret;
-
- astbo = kzalloc(sizeof(struct ast_bo), GFP_KERNEL);
- if (!astbo)
- return -ENOMEM;
-
- ret = drm_gem_object_init(dev, &astbo->gem, size);
- if (ret)
- goto error;
-
- astbo->bo.bdev = &ast->ttm.bdev;
-
- ast_ttm_placement(astbo, TTM_PL_FLAG_VRAM | TTM_PL_FLAG_SYSTEM);
-
- acc_size = ttm_bo_dma_acc_size(&ast->ttm.bdev, size,
- sizeof(struct ast_bo));
-
- ret = ttm_bo_init(&ast->ttm.bdev, &astbo->bo, size,
- ttm_bo_type_device, &astbo->placement,
- align >> PAGE_SHIFT, false, acc_size,
- NULL, NULL, ast_bo_ttm_destroy);
- if (ret)
- goto error;
-
- *pastbo = astbo;
- return 0;
-error:
- kfree(astbo);
- return ret;
-}
-
-static inline u64 ast_bo_gpu_offset(struct ast_bo *bo)
-{
- return bo->bo.offset;
-}
-
-int ast_bo_pin(struct ast_bo *bo, u32 pl_flag, u64 *gpu_addr)
-{
- struct ttm_operation_ctx ctx = { false, false };
- int i, ret;
-
- if (bo->pin_count) {
- bo->pin_count++;
- if (gpu_addr)
- *gpu_addr = ast_bo_gpu_offset(bo);
- }
-
- ast_ttm_placement(bo, pl_flag);
- for (i = 0; i < bo->placement.num_placement; i++)
- bo->placements[i].flags |= TTM_PL_FLAG_NO_EVICT;
- ret = ttm_bo_validate(&bo->bo, &bo->placement, &ctx);
- if (ret)
- return ret;
-
- bo->pin_count = 1;
- if (gpu_addr)
- *gpu_addr = ast_bo_gpu_offset(bo);
- return 0;
-}
-
-int ast_bo_unpin(struct ast_bo *bo)
-{
- struct ttm_operation_ctx ctx = { false, false };
- int i;
- if (!bo->pin_count) {
- DRM_ERROR("unpin bad %p\n", bo);
- return 0;
- }
- bo->pin_count--;
- if (bo->pin_count)
- return 0;
-
- for (i = 0; i < bo->placement.num_placement ; i++)
- bo->placements[i].flags &= ~TTM_PL_FLAG_NO_EVICT;
- return ttm_bo_validate(&bo->bo, &bo->placement, &ctx);
-}
-
-int ast_bo_push_sysram(struct ast_bo *bo)
-{
- struct ttm_operation_ctx ctx = { false, false };
- int i, ret;
- if (!bo->pin_count) {
- DRM_ERROR("unpin bad %p\n", bo);
- return 0;
- }
- bo->pin_count--;
- if (bo->pin_count)
- return 0;
-
- if (bo->kmap.virtual)
- ttm_bo_kunmap(&bo->kmap);
-
- ast_ttm_placement(bo, TTM_PL_FLAG_SYSTEM);
- for (i = 0; i < bo->placement.num_placement ; i++)
- bo->placements[i].flags |= TTM_PL_FLAG_NO_EVICT;
-
- ret = ttm_bo_validate(&bo->bo, &bo->placement, &ctx);
- if (ret) {
- DRM_ERROR("pushing to VRAM failed\n");
- return ret;
- }
- return 0;
-}
-
int ast_mmap(struct file *filp, struct vm_area_struct *vma)
{
struct drm_file *file_priv = filp->private_data;
projects / platform / kernel / linux-starfive.git / commitdiff