[PATCH 08/23] drm/via: use drm_mm instead of drm_sman
James Simmons
jsimmons at infradead.org
Wed Dec 7 08:23:12 PST 2011
> Now that we are again in proper control of owner_list, we need to
> properly list_del it on free.
>
> Signed-off-by: Daniel Vetter <daniel.vetter at ffwll.ch>
Acked-by: James Simmons <jsimmons at infradead.org>
> ---
> drivers/gpu/drm/via/via_drv.h | 5 ++-
> drivers/gpu/drm/via/via_map.c | 7 ----
> drivers/gpu/drm/via/via_mm.c | 72 ++++++++++++++++++++++------------------
> 3 files changed, 43 insertions(+), 41 deletions(-)
>
> diff --git a/drivers/gpu/drm/via/via_drv.h b/drivers/gpu/drm/via/via_drv.h
> index 108ea71..88edacc 100644
> --- a/drivers/gpu/drm/via/via_drv.h
> +++ b/drivers/gpu/drm/via/via_drv.h
> @@ -24,7 +24,7 @@
> #ifndef _VIA_DRV_H_
> #define _VIA_DRV_H_
>
> -#include "drm_sman.h"
> +#include "drm_mm.h"
> #define DRIVER_AUTHOR "Various"
>
> #define DRIVER_NAME "via"
> @@ -88,9 +88,10 @@ typedef struct drm_via_private {
> uint32_t irq_pending_mask;
> int *irq_map;
> unsigned int idle_fault;
> - struct drm_sman sman;
> int vram_initialized;
> + struct drm_mm vram_mm;
> int agp_initialized;
> + struct drm_mm agp_mm;
> /** Mapping of userspace keys to mm objects */
> struct idr object_idr;
> unsigned long vram_offset;
> diff --git a/drivers/gpu/drm/via/via_map.c b/drivers/gpu/drm/via/via_map.c
> index fa5afbc..a2ab343 100644
> --- a/drivers/gpu/drm/via/via_map.c
> +++ b/drivers/gpu/drm/via/via_map.c
> @@ -105,15 +105,9 @@ int via_driver_load(struct drm_device *dev, unsigned long chipset)
> dev_priv->chipset = chipset;
>
> idr_init(&dev->object_name_idr);
> - ret = drm_sman_init(&dev_priv->sman, 2, 12, 8);
> - if (ret) {
> - kfree(dev_priv);
> - return ret;
> - }
>
> ret = drm_vblank_init(dev, 1);
> if (ret) {
> - drm_sman_takedown(&dev_priv->sman);
> kfree(dev_priv);
> return ret;
> }
> @@ -125,7 +119,6 @@ int via_driver_unload(struct drm_device *dev)
> {
> drm_via_private_t *dev_priv = dev->dev_private;
>
> - drm_sman_takedown(&dev_priv->sman);
> idr_remove_all(&dev_priv->object_idr);
> idr_destroy(&dev_priv->object_idr);
>
> diff --git a/drivers/gpu/drm/via/via_mm.c b/drivers/gpu/drm/via/via_mm.c
> index af9e771..80eab7d 100644
> --- a/drivers/gpu/drm/via/via_mm.c
> +++ b/drivers/gpu/drm/via/via_mm.c
> @@ -28,26 +28,22 @@
> #include "drmP.h"
> #include "via_drm.h"
> #include "via_drv.h"
> -#include "drm_sman.h"
>
> #define VIA_MM_ALIGN_SHIFT 4
> #define VIA_MM_ALIGN_MASK ((1 << VIA_MM_ALIGN_SHIFT) - 1)
>
> +struct via_memblock {
> + struct drm_mm_node mm_node;
> + struct list_head owner_list;
> +};
> +
> int via_agp_init(struct drm_device *dev, void *data, struct drm_file *file_priv)
> {
> drm_via_agp_t *agp = data;
> drm_via_private_t *dev_priv = (drm_via_private_t *) dev->dev_private;
> - int ret;
>
> mutex_lock(&dev->struct_mutex);
> - ret = drm_sman_set_range(&dev_priv->sman, VIA_MEM_AGP, 0,
> - agp->size >> VIA_MM_ALIGN_SHIFT);
> -
> - if (ret) {
> - DRM_ERROR("AGP memory manager initialisation error\n");
> - mutex_unlock(&dev->struct_mutex);
> - return ret;
> - }
> + drm_mm_init(&dev_priv->agp_mm, 0, agp->size >> VIA_MM_ALIGN_SHIFT);
>
> dev_priv->agp_initialized = 1;
> dev_priv->agp_offset = agp->offset;
> @@ -61,17 +57,9 @@ int via_fb_init(struct drm_device *dev, void *data, struct drm_file *file_priv)
> {
> drm_via_fb_t *fb = data;
> drm_via_private_t *dev_priv = (drm_via_private_t *) dev->dev_private;
> - int ret;
>
> mutex_lock(&dev->struct_mutex);
> - ret = drm_sman_set_range(&dev_priv->sman, VIA_MEM_VIDEO, 0,
> - fb->size >> VIA_MM_ALIGN_SHIFT);
> -
> - if (ret) {
> - DRM_ERROR("VRAM memory manager initialisation error\n");
> - mutex_unlock(&dev->struct_mutex);
> - return ret;
> - }
> + drm_mm_init(&dev_priv->vram_mm, 0, fb->size >> VIA_MM_ALIGN_SHIFT);
>
> dev_priv->vram_initialized = 1;
> dev_priv->vram_offset = fb->offset;
> @@ -108,9 +96,14 @@ void via_lastclose(struct drm_device *dev)
> return;
>
> mutex_lock(&dev->struct_mutex);
> - drm_sman_cleanup(&dev_priv->sman);
> - dev_priv->vram_initialized = 0;
> - dev_priv->agp_initialized = 0;
> + if (dev_priv->vram_initialized) {
> + drm_mm_takedown(&dev_priv->vram_mm);
> + dev_priv->vram_initialized = 0;
> + }
> + if (dev_priv->agp_initialized) {
> + drm_mm_takedown(&dev_priv->agp_mm);
> + dev_priv->agp_initialized = 0;
> + }
> mutex_unlock(&dev->struct_mutex);
> }
>
> @@ -119,7 +112,7 @@ int via_mem_alloc(struct drm_device *dev, void *data,
> {
> drm_via_mem_t *mem = data;
> int retval = 0, user_key;
> - struct drm_memblock_item *item;
> + struct via_memblock *item;
> drm_via_private_t *dev_priv = (drm_via_private_t *) dev->dev_private;
> struct via_file_private *file_priv = file->driver_priv;
> unsigned long tmpSize;
> @@ -137,13 +130,24 @@ int via_mem_alloc(struct drm_device *dev, void *data,
> return -EINVAL;
> }
>
> - tmpSize = (mem->size + VIA_MM_ALIGN_MASK) >> VIA_MM_ALIGN_SHIFT;
> - item = drm_sman_alloc(&dev_priv->sman, mem->type, tmpSize, 0, 0);
> + item = kzalloc(sizeof(*item), GFP_KERNEL);
> if (!item) {
> retval = -ENOMEM;
> goto fail_alloc;
> }
>
> + tmpSize = (mem->size + VIA_MM_ALIGN_MASK) >> VIA_MM_ALIGN_SHIFT;
> + if (mem->type == VIA_MEM_AGP)
> + retval = drm_mm_insert_node(&dev_priv->agp_mm,
> + &item->mm_node,
> + tmpSize, 0);
> + else
> + retval = drm_mm_insert_node(&dev_priv->vram_mm,
> + &item->mm_node,
> + tmpSize, 0);
> + if (retval)
> + goto fail_alloc;
> +
> again:
> if (idr_pre_get(&dev_priv->object_idr, GFP_KERNEL) == 0) {
> retval = -ENOMEM;
> @@ -163,15 +167,15 @@ again:
>
> mem->offset = ((mem->type == VIA_MEM_VIDEO) ?
> dev_priv->vram_offset : dev_priv->agp_offset) +
> - (item->mm->
> - offset(item->mm, item->mm_info) << VIA_MM_ALIGN_SHIFT);
> + ((item->mm_node.start) << VIA_MM_ALIGN_SHIFT);
> mem->index = user_key;
>
> return 0;
>
> fail_idr:
> - drm_sman_free(item);
> + drm_mm_remove_node(&item->mm_node);
> fail_alloc:
> + kfree(item);
> mutex_unlock(&dev->struct_mutex);
>
> mem->offset = 0;
> @@ -186,7 +190,7 @@ int via_mem_free(struct drm_device *dev, void *data, struct drm_file *file_priv)
> {
> drm_via_private_t *dev_priv = dev->dev_private;
> drm_via_mem_t *mem = data;
> - struct drm_memblock_item *obj;
> + struct via_memblock *obj;
> int ret;
>
> mutex_lock(&dev->struct_mutex);
> @@ -197,7 +201,9 @@ int via_mem_free(struct drm_device *dev, void *data, struct drm_file *file_priv)
> }
>
> idr_remove(&dev_priv->object_idr, mem->index);
> - drm_sman_free(obj);
> + list_del(&obj->owner_list);
> + drm_mm_remove_node(&obj->mm_node);
> + kfree(obj);
> mutex_unlock(&dev->struct_mutex);
>
> DRM_DEBUG("free = 0x%lx\n", mem->index);
> @@ -210,7 +216,7 @@ void via_reclaim_buffers_locked(struct drm_device *dev,
> struct drm_file *file)
> {
> struct via_file_private *file_priv = file->driver_priv;
> - struct drm_memblock_item *entry, *next;
> + struct via_memblock *entry, *next;
>
> mutex_lock(&dev->struct_mutex);
> if (list_empty(&file_priv->obj_list)) {
> @@ -223,7 +229,9 @@ void via_reclaim_buffers_locked(struct drm_device *dev,
>
> list_for_each_entry_safe(entry, next, &file_priv->obj_list,
> owner_list) {
> - drm_sman_free(entry);
> + list_del(&entry->owner_list);
> + drm_mm_remove_node(&entry->mm_node);
> + kfree(entry);
> }
> mutex_unlock(&dev->struct_mutex);
> return;
> --
> 1.7.7.1
>
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