This also means dropping the DRM_ODD_MM_COMPAT case.
Signed-off-by: Pekka Paalanen <pq@iki.fi>
static int drm_bo_vm_pre_move(struct drm_buffer_object *bo, int old_is_pci)
{
-#ifdef DRM_ODD_MM_COMPAT
- int ret;
-
if (!bo->map_list.map)
return 0;
- ret = drm_bo_lock_kmm(bo);
- if (ret)
- return ret;
drm_bo_unmap_virtual(bo);
- if (old_is_pci)
- drm_bo_finish_unmap(bo);
-#else
- if (!bo->map_list.map)
- return 0;
-
- drm_bo_unmap_virtual(bo);
-#endif
return 0;
}
-static void drm_bo_vm_post_move(struct drm_buffer_object *bo)
-{
-#ifdef DRM_ODD_MM_COMPAT
- int ret;
-
- if (!bo->map_list.map)
- return;
-
- ret = drm_bo_remap_bound(bo);
- if (ret) {
- DRM_ERROR("Failed to remap a bound buffer object.\n"
- "\tThis might cause a sigbus later.\n");
- }
- drm_bo_unlock_kmm(bo);
-#endif
-}
-
/*
* Call bo->mutex locked.
*/
goto out_err;
moved:
- if (old_is_pci || new_is_pci)
- drm_bo_vm_post_move(bo);
-
if (bo->priv_flags & _DRM_BO_FLAG_EVICTED) {
ret =
dev->driver->bo_driver->invalidate_caches(dev,
return 0;
out_err:
- if (old_is_pci || new_is_pci)
- drm_bo_vm_post_move(bo);
-
new_man = &bm->man[bo->mem.mem_type];
if ((new_man->flags & _DRM_FLAG_MEMTYPE_FIXED) && bo->ttm) {
drm_ttm_unbind(bo->ttm);
return;
}
-#ifdef DRM_ODD_MM_COMPAT
- BUG_ON(!list_empty(&bo->vma_list));
- BUG_ON(!list_empty(&bo->p_mm_list));
-#endif
-
if (bo->ttm) {
drm_ttm_unbind(bo->ttm);
drm_ttm_destroy(bo->ttm);
INIT_LIST_HEAD(&bo->lru);
INIT_LIST_HEAD(&bo->pinned_lru);
INIT_LIST_HEAD(&bo->ddestroy);
-#ifdef DRM_ODD_MM_COMPAT
- INIT_LIST_HEAD(&bo->p_mm_list);
- INIT_LIST_HEAD(&bo->vma_list);
-#endif
bo->dev = dev;
bo->type = type;
bo->num_pages = num_pages;
INIT_LIST_HEAD(&fbo->ddestroy);
INIT_LIST_HEAD(&fbo->lru);
INIT_LIST_HEAD(&fbo->pinned_lru);
-#ifdef DRM_ODD_MM_COMPAT
- INIT_LIST_HEAD(&fbo->vma_list);
- INIT_LIST_HEAD(&fbo->p_mm_list);
-#endif
fbo->fence = drm_fence_reference_locked(bo->fence);
fbo->pinned_node = NULL;
if (ret)
return ret;
-#ifdef DRM_ODD_MM_COMPAT
- /*
- * In this mode, we don't allow pipelining a copy blit,
- * since the buffer will be accessible from user space
- * the moment we return and rebuild the page tables.
- *
- * With normal vm operation, page tables are rebuilt
- * on demand using fault(), which waits for buffer idle.
- */
- if (1)
-#else
if (evict || ((bo->mem.mm_node == bo->pinned_node) &&
bo->mem.mm_node != NULL))
-#endif
{
if (bo->fence) {
(void) drm_fence_object_wait(bo->fence, 0, 1,
#include "drmP.h"
-#if (LINUX_VERSION_CODE < KERNEL_VERSION(2,6,19))
-
-/*
- * The protection map was exported in 2.6.19
- */
-
-pgprot_t vm_get_page_prot(unsigned long vm_flags)
-{
-#ifdef MODULE
- static pgprot_t drm_protection_map[16] = {
- __P000, __P001, __P010, __P011, __P100, __P101, __P110, __P111,
- __S000, __S001, __S010, __S011, __S100, __S101, __S110, __S111
- };
-
- return drm_protection_map[vm_flags & 0x0F];
-#else
- extern pgprot_t protection_map[];
- return protection_map[vm_flags & 0x0F];
-#endif
-};
-#endif
-
-
-#if !defined(DRM_FULL_MM_COMPAT) && \
- (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,19))
+#if !defined(DRM_FULL_MM_COMPAT)
static int drm_pte_is_clear(struct vm_area_struct *vma,
unsigned long addr)
return NULL;
}
-#endif
-
-#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,19)) && \
- !defined(DRM_FULL_MM_COMPAT)
-
-/**
- */
-
unsigned long drm_bo_vm_nopfn(struct vm_area_struct * vma,
unsigned long address)
{
return 0;
}
-#endif
-
-
-#ifdef DRM_ODD_MM_COMPAT
-
-/*
- * VM compatibility code for 2.6.15-2.6.18. This code implements a complicated
- * workaround for a single BUG statement in do_no_page in these versions. The
- * tricky thing is that we need to take the mmap_sem in exclusive mode for _all_
- * vmas mapping the ttm, before dev->struct_mutex is taken. The way we do this is to
- * check first take the dev->struct_mutex, and then trylock all mmap_sems. If this
- * fails for a single mmap_sem, we have to release all sems and the dev->struct_mutex,
- * release the cpu and retry. We also need to keep track of all vmas mapping the ttm.
- * phew.
- */
-
-typedef struct p_mm_entry {
- struct list_head head;
- struct mm_struct *mm;
- atomic_t refcount;
- int locked;
-} p_mm_entry_t;
-
-typedef struct vma_entry {
- struct list_head head;
- struct vm_area_struct *vma;
-} vma_entry_t;
-
-
-struct page *drm_bo_vm_nopage(struct vm_area_struct *vma,
- unsigned long address,
- int *type)
-{
- struct drm_buffer_object *bo = (struct drm_buffer_object *) vma->vm_private_data;
- unsigned long page_offset;
- struct page *page;
- struct drm_ttm *ttm;
- struct drm_device *dev;
-
- mutex_lock(&bo->mutex);
-
- if (type)
- *type = VM_FAULT_MINOR;
-
- if (address > vma->vm_end) {
- page = NOPAGE_SIGBUS;
- goto out_unlock;
- }
-
- dev = bo->dev;
-
- if (drm_mem_reg_is_pci(dev, &bo->mem)) {
- DRM_ERROR("Invalid compat nopage.\n");
- page = NOPAGE_SIGBUS;
- goto out_unlock;
- }
-
- ttm = bo->ttm;
- drm_ttm_fixup_caching(ttm);
- page_offset = (address - vma->vm_start) >> PAGE_SHIFT;
- page = drm_ttm_get_page(ttm, page_offset);
- if (!page) {
- page = NOPAGE_OOM;
- goto out_unlock;
- }
-
- get_page(page);
-out_unlock:
- mutex_unlock(&bo->mutex);
- return page;
-}
-
-
-
-
-int drm_bo_map_bound(struct vm_area_struct *vma)
-{
- struct drm_buffer_object *bo = (struct drm_buffer_object *)vma->vm_private_data;
- int ret = 0;
- unsigned long bus_base;
- unsigned long bus_offset;
- unsigned long bus_size;
-
- ret = drm_bo_pci_offset(bo->dev, &bo->mem, &bus_base,
- &bus_offset, &bus_size);
- BUG_ON(ret);
-
- if (bus_size) {
- struct drm_mem_type_manager *man = &bo->dev->bm.man[bo->mem.mem_type];
- unsigned long pfn = (bus_base + bus_offset) >> PAGE_SHIFT;
- pgprot_t pgprot = drm_io_prot(man->drm_bus_maptype, vma);
- ret = io_remap_pfn_range(vma, vma->vm_start, pfn,
- vma->vm_end - vma->vm_start,
- pgprot);
- }
-
- return ret;
-}
-
-
-int drm_bo_add_vma(struct drm_buffer_object * bo, struct vm_area_struct *vma)
-{
- p_mm_entry_t *entry, *n_entry;
- vma_entry_t *v_entry;
- struct mm_struct *mm = vma->vm_mm;
-
- v_entry = drm_ctl_alloc(sizeof(*v_entry), DRM_MEM_BUFOBJ);
- if (!v_entry) {
- DRM_ERROR("Allocation of vma pointer entry failed\n");
- return -ENOMEM;
- }
- v_entry->vma = vma;
-
- list_add_tail(&v_entry->head, &bo->vma_list);
-
- list_for_each_entry(entry, &bo->p_mm_list, head) {
- if (mm == entry->mm) {
- atomic_inc(&entry->refcount);
- return 0;
- } else if ((unsigned long)mm < (unsigned long)entry->mm) ;
- }
-
- n_entry = drm_ctl_alloc(sizeof(*n_entry), DRM_MEM_BUFOBJ);
- if (!n_entry) {
- DRM_ERROR("Allocation of process mm pointer entry failed\n");
- return -ENOMEM;
- }
- INIT_LIST_HEAD(&n_entry->head);
- n_entry->mm = mm;
- n_entry->locked = 0;
- atomic_set(&n_entry->refcount, 0);
- list_add_tail(&n_entry->head, &entry->head);
-
- return 0;
-}
-
-void drm_bo_delete_vma(struct drm_buffer_object * bo, struct vm_area_struct *vma)
-{
- p_mm_entry_t *entry, *n;
- vma_entry_t *v_entry, *v_n;
- int found = 0;
- struct mm_struct *mm = vma->vm_mm;
-
- list_for_each_entry_safe(v_entry, v_n, &bo->vma_list, head) {
- if (v_entry->vma == vma) {
- found = 1;
- list_del(&v_entry->head);
- drm_ctl_free(v_entry, sizeof(*v_entry), DRM_MEM_BUFOBJ);
- break;
- }
- }
- BUG_ON(!found);
-
- list_for_each_entry_safe(entry, n, &bo->p_mm_list, head) {
- if (mm == entry->mm) {
- if (atomic_add_negative(-1, &entry->refcount)) {
- list_del(&entry->head);
- BUG_ON(entry->locked);
- drm_ctl_free(entry, sizeof(*entry), DRM_MEM_BUFOBJ);
- }
- return;
- }
- }
- BUG_ON(1);
-}
-
-
-
-int drm_bo_lock_kmm(struct drm_buffer_object * bo)
-{
- p_mm_entry_t *entry;
- int lock_ok = 1;
-
- list_for_each_entry(entry, &bo->p_mm_list, head) {
- BUG_ON(entry->locked);
- if (!down_write_trylock(&entry->mm->mmap_sem)) {
- lock_ok = 0;
- break;
- }
- entry->locked = 1;
- }
-
- if (lock_ok)
- return 0;
-
- list_for_each_entry(entry, &bo->p_mm_list, head) {
- if (!entry->locked)
- break;
- up_write(&entry->mm->mmap_sem);
- entry->locked = 0;
- }
-
- /*
- * Possible deadlock. Try again. Our callers should handle this
- * and restart.
- */
-
- return -EAGAIN;
-}
-
-void drm_bo_unlock_kmm(struct drm_buffer_object * bo)
-{
- p_mm_entry_t *entry;
-
- list_for_each_entry(entry, &bo->p_mm_list, head) {
- BUG_ON(!entry->locked);
- up_write(&entry->mm->mmap_sem);
- entry->locked = 0;
- }
-}
-
-int drm_bo_remap_bound(struct drm_buffer_object *bo)
-{
- vma_entry_t *v_entry;
- int ret = 0;
-
- if (drm_mem_reg_is_pci(bo->dev, &bo->mem)) {
- list_for_each_entry(v_entry, &bo->vma_list, head) {
- ret = drm_bo_map_bound(v_entry->vma);
- if (ret)
- break;
- }
- }
-
- return ret;
-}
-
-void drm_bo_finish_unmap(struct drm_buffer_object *bo)
-{
- vma_entry_t *v_entry;
-
- list_for_each_entry(v_entry, &bo->vma_list, head) {
- v_entry->vma->vm_flags &= ~VM_PFNMAP;
- }
-}
-
-#endif
+#endif /* !defined(DRM_FULL_MM_COMPAT) */
#ifdef DRM_IDR_COMPAT_FN
/* only called when idp->lock is held */
#include <linux/cred.h>
#endif
-/* older kernels had different irq args */
-#if (LINUX_VERSION_CODE < KERNEL_VERSION(2,6,19))
-#undef DRM_IRQ_ARGS
-#define DRM_IRQ_ARGS int irq, void *arg, struct pt_regs *regs
-#endif
-
#ifndef list_for_each_safe
#define list_for_each_safe(pos, n, head) \
for (pos = (head)->next, n = pos->next; pos != (head); \
#include <linux/mm.h>
#include <asm/page.h>
-#if (LINUX_VERSION_CODE < KERNEL_VERSION(2,6,19))
-#define DRM_ODD_MM_COMPAT
-#endif
-
#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,21))
#define DRM_FULL_MM_COMPAT
#endif
int type;
};
-#if (LINUX_VERSION_CODE < KERNEL_VERSION(2,6,19))
-extern struct page *drm_bo_vm_nopage(struct vm_area_struct *vma,
- unsigned long address,
- int *type);
-#elif (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,19)) && \
- !defined(DRM_FULL_MM_COMPAT)
extern unsigned long drm_bo_vm_nopfn(struct vm_area_struct *vma,
unsigned long address);
-#endif /* (LINUX_VERSION_CODE < KERNEL_VERSION(2,6,19)) */
#endif /* ndef DRM_FULL_MM_COMPAT */
-#ifdef DRM_ODD_MM_COMPAT
-
-struct drm_buffer_object;
-
-
-/*
- * Add a vma to the ttm vma list, and the
- * process mm pointer to the ttm mm list. Needs the ttm mutex.
- */
-
-extern int drm_bo_add_vma(struct drm_buffer_object * bo,
- struct vm_area_struct *vma);
-/*
- * Delete a vma and the corresponding mm pointer from the
- * ttm lists. Needs the ttm mutex.
- */
-extern void drm_bo_delete_vma(struct drm_buffer_object * bo,
- struct vm_area_struct *vma);
-
-/*
- * Attempts to lock all relevant mmap_sems for a ttm, while
- * not releasing the ttm mutex. May return -EAGAIN to avoid
- * deadlocks. In that case the caller shall release the ttm mutex,
- * schedule() and try again.
- */
-
-extern int drm_bo_lock_kmm(struct drm_buffer_object * bo);
-
-/*
- * Unlock all relevant mmap_sems for a ttm.
- */
-extern void drm_bo_unlock_kmm(struct drm_buffer_object * bo);
-
-/*
- * If the ttm was bound to the aperture, this function shall be called
- * with all relevant mmap sems held. It deletes the flag VM_PFNMAP from all
- * vmas mapping this ttm. This is needed just after unmapping the ptes of
- * the vma, otherwise the do_nopage() function will bug :(. The function
- * releases the mmap_sems for this ttm.
- */
-
-extern void drm_bo_finish_unmap(struct drm_buffer_object *bo);
-
-/*
- * Remap all vmas of this ttm using io_remap_pfn_range. We cannot
- * fault these pfns in, because the first one will set the vma VM_PFNMAP
- * flag, which will make the next fault bug in do_nopage(). The function
- * releases the mmap_sems for this ttm.
- */
-
-extern int drm_bo_remap_bound(struct drm_buffer_object *bo);
-
-
-/*
- * Remap a vma for a bound ttm. Call with the ttm mutex held and
- * the relevant mmap_sem locked.
- */
-extern int drm_bo_map_bound(struct vm_area_struct *vma);
-
-#endif
-
/* fixme when functions are upstreamed - upstreamed for 2.6.23 */
#if (LINUX_VERSION_CODE < KERNEL_VERSION(2,6,23))
#define DRM_IDR_COMPAT_FN
void idr_remove_all(struct idr *idp);
#endif
-#if (LINUX_VERSION_CODE < KERNEL_VERSION(2,6,19))
-typedef _Bool bool;
-#endif
-
#if !defined(flush_agp_mappings)
#define flush_agp_mappings() do {} while(0)
unsigned long bus_offset;
uint32_t vm_flags;
void *iomap;
-
-#ifdef DRM_ODD_MM_COMPAT
- /* dev->struct_mutex only protected. */
- struct list_head vma_list;
- struct list_head p_mm_list;
-#endif
-
};
#define _DRM_BO_FLAG_UNFENCED 0x00000001
drm_vm_open_locked(vma);
atomic_inc(&bo->usage);
-#ifdef DRM_ODD_MM_COMPAT
- drm_bo_add_vma(bo, vma);
-#endif
}
/**
drm_vm_close(vma);
if (bo) {
mutex_lock(&dev->struct_mutex);
-#ifdef DRM_ODD_MM_COMPAT
- drm_bo_delete_vma(bo, vma);
-#endif
drm_bo_usage_deref_locked((struct drm_buffer_object **)
&vma->vm_private_data);
mutex_unlock(&dev->struct_mutex);
.fault = drm_bo_vm_fault,
#endif
#else
-#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,19))
.nopfn = drm_bo_vm_nopfn,
-#else
- .nopage = drm_bo_vm_nopage,
-#endif
#endif
.open = drm_bo_vm_open,
.close = drm_bo_vm_close,
vma->vm_private_data = map->handle;
vma->vm_file = filp;
vma->vm_flags |= VM_RESERVED | VM_IO;
-#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,19))
vma->vm_flags |= VM_PFNMAP;
-#endif
drm_bo_vm_open_locked(vma);
-#ifdef DRM_ODD_MM_COMPAT
- drm_bo_map_bound(vma);
-#endif
return 0;
}
static uint32_t
nouveau_mem_fb_amount_igp(struct drm_device *dev)
{
-#if defined(__linux__) && (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,19))
+#if defined(__linux__)
struct drm_nouveau_private *dev_priv = dev->dev_private;
struct pci_dev *bridge;
uint32_t mem;
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