[PATCH 09/23] drm/sis: use drm_mm instead of drm_sman
Daniel Vetter
daniel.vetter at ffwll.ch
Thu Oct 27 04:07:36 PDT 2011
Signed-off-by: Daniel Vetter <daniel.vetter at ffwll.ch>
---
drivers/gpu/drm/sis/sis_drv.c | 4 -
drivers/gpu/drm/sis/sis_drv.h | 5 +-
drivers/gpu/drm/sis/sis_mm.c | 137 +++++++++++++++++++---------------------
3 files changed, 68 insertions(+), 78 deletions(-)
diff --git a/drivers/gpu/drm/sis/sis_drv.c b/drivers/gpu/drm/sis/sis_drv.c
index 9f5fbcf..278d1b0 100644
--- a/drivers/gpu/drm/sis/sis_drv.c
+++ b/drivers/gpu/drm/sis/sis_drv.c
@@ -47,9 +47,6 @@ static int sis_driver_load(struct drm_device *dev, unsigned long chipset)
dev->dev_private = (void *)dev_priv;
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;
}
@@ -58,7 +55,6 @@ static int sis_driver_unload(struct drm_device *dev)
{
drm_sis_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/sis/sis_drv.h b/drivers/gpu/drm/sis/sis_drv.h
index fcdd06a..573758b 100644
--- a/drivers/gpu/drm/sis/sis_drv.h
+++ b/drivers/gpu/drm/sis/sis_drv.h
@@ -44,7 +44,7 @@ enum sis_family {
SIS_CHIP_315 = 1,
};
-#include "drm_sman.h"
+#include "drm_mm.h"
#define SIS_BASE (dev_priv->mmio)
@@ -54,12 +54,13 @@ enum sis_family {
typedef struct drm_sis_private {
drm_local_map_t *mmio;
unsigned int idle_fault;
- struct drm_sman sman;
unsigned int chipset;
int vram_initialized;
int agp_initialized;
unsigned long vram_offset;
unsigned long agp_offset;
+ struct drm_mm vram_mm;
+ struct drm_mm agp_mm;
/** Mapping of userspace keys to mm objects */
struct idr object_idr;
} drm_sis_private_t;
diff --git a/drivers/gpu/drm/sis/sis_mm.c b/drivers/gpu/drm/sis/sis_mm.c
index ef6045a..ff34680 100644
--- a/drivers/gpu/drm/sis/sis_mm.c
+++ b/drivers/gpu/drm/sis/sis_mm.c
@@ -41,40 +41,18 @@
#define AGP_TYPE 1
+struct sis_memblock {
+ struct drm_mm_node mm_node;
+ struct sis_memreq req;
+ struct list_head owner_list;
+};
+
#if defined(CONFIG_FB_SIS) || defined(CONFIG_FB_SIS_MODULE)
/* fb management via fb device */
#define SIS_MM_ALIGN_SHIFT 0
#define SIS_MM_ALIGN_MASK 0
-static void *sis_sman_mm_allocate(void *private, unsigned long size,
- unsigned alignment)
-{
- struct sis_memreq req;
-
- req.size = size;
- sis_malloc(&req);
- if (req.size == 0)
- return NULL;
- else
- return (void *)(unsigned long)~req.offset;
-}
-
-static void sis_sman_mm_free(void *private, void *ref)
-{
- sis_free(~((unsigned long)ref));
-}
-
-static void sis_sman_mm_destroy(void *private)
-{
- ;
-}
-
-static unsigned long sis_sman_mm_offset(void *private, void *ref)
-{
- return ~((unsigned long)ref);
-}
-
#else /* CONFIG_FB_SIS[_MODULE] */
#define SIS_MM_ALIGN_SHIFT 4
@@ -86,30 +64,11 @@ static int sis_fb_init(struct drm_device *dev, void *data, struct drm_file *file
{
drm_sis_private_t *dev_priv = dev->dev_private;
drm_sis_fb_t *fb = data;
- int ret;
mutex_lock(&dev->struct_mutex);
-#if defined(CONFIG_FB_SIS) || defined(CONFIG_FB_SIS_MODULE)
- {
- struct drm_sman_mm sman_mm;
- sman_mm.private = (void *)0xFFFFFFFF;
- sman_mm.allocate = sis_sman_mm_allocate;
- sman_mm.free = sis_sman_mm_free;
- sman_mm.destroy = sis_sman_mm_destroy;
- sman_mm.offset = sis_sman_mm_offset;
- ret =
- drm_sman_set_manager(&dev_priv->sman, VIDEO_TYPE, &sman_mm);
- }
-#else
- ret = drm_sman_set_range(&dev_priv->sman, VIDEO_TYPE, 0,
- fb->size >> SIS_MM_ALIGN_SHIFT);
-#endif
-
- if (ret) {
- DRM_ERROR("VRAM memory manager initialisation error\n");
- mutex_unlock(&dev->struct_mutex);
- return ret;
- }
+ /* Unconditionally init the drm_mm, even though we don't use it when the
+ * fb sis driver is available - make cleanup easier. */
+ drm_mm_init(&dev_priv->vram_mm, 0, fb->size >> SIS_MM_ALIGN_SHIFT);
dev_priv->vram_initialized = 1;
dev_priv->vram_offset = fb->offset;
@@ -126,8 +85,9 @@ static int sis_drm_alloc(struct drm_device *dev, struct drm_file *file,
drm_sis_private_t *dev_priv = dev->dev_private;
drm_sis_mem_t *mem = data;
int retval = 0, user_key;
- struct drm_memblock_item *item;
+ struct sis_memblock *item;
struct sis_file_private *file_priv = file->driver_priv;
+ unsigned long offset;
mutex_lock(&dev->struct_mutex);
@@ -139,13 +99,35 @@ static int sis_drm_alloc(struct drm_device *dev, struct drm_file *file,
return -EINVAL;
}
- mem->size = (mem->size + SIS_MM_ALIGN_MASK) >> SIS_MM_ALIGN_SHIFT;
- item = drm_sman_alloc(&dev_priv->sman, pool, mem->size, 0, 0);
+ item = kzalloc(sizeof(*item), GFP_KERNEL);
if (!item) {
retval = -ENOMEM;
goto fail_alloc;
}
+ mem->size = (mem->size + SIS_MM_ALIGN_MASK) >> SIS_MM_ALIGN_SHIFT;
+ if (pool == AGP_TYPE) {
+ retval = drm_mm_insert_node(&dev_priv->agp_mm,
+ &item->mm_node,
+ mem->size, 0);
+ offset = item->mm_node.start;
+ } else {
+#if defined(CONFIG_FB_SIS) || defined(CONFIG_FB_SIS_MODULE)
+ item->req.size = mem->size;
+ sis_malloc(&item->req);
+ if (item->req.size == 0)
+ retval = -ENOMEN;
+ offset = item->req.offset;
+#else
+ retval = drm_mm_insert_node(&dev_priv->vram_mm,
+ &item->mm_node,
+ mem->size, 0);
+ offset = item->mm_node.start;
+#endif
+ }
+ if (retval)
+ goto fail_alloc;
+
again:
if (idr_pre_get(&dev_priv->object_idr, GFP_KERNEL) == 0) {
retval = -ENOMEM;
@@ -165,16 +147,16 @@ again:
mem->offset = ((pool == 0) ?
dev_priv->vram_offset : dev_priv->agp_offset) +
- (item->mm->
- offset(item->mm, item->mm_info) << SIS_MM_ALIGN_SHIFT);
+ (offset << SIS_MM_ALIGN_SHIFT);
mem->free = user_key;
mem->size = mem->size << SIS_MM_ALIGN_SHIFT;
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;
@@ -191,7 +173,7 @@ static int sis_drm_free(struct drm_device *dev, void *data, struct drm_file *fil
{
drm_sis_private_t *dev_priv = dev->dev_private;
drm_sis_mem_t *mem = data;
- struct drm_memblock_item *obj;
+ struct sis_memblock *obj;
int ret;
mutex_lock(&dev->struct_mutex);
@@ -202,7 +184,14 @@ static int sis_drm_free(struct drm_device *dev, void *data, struct drm_file *fil
}
idr_remove(&dev_priv->object_idr, mem->free);
- drm_sman_free(obj);
+ list_del(&obj->owner_list);
+ if (drm_mm_node_allocated(&obj->mm_node))
+ drm_mm_remove_node(&obj->mm_node);
+#if defined(CONFIG_FB_SIS) || defined(CONFIG_FB_SIS_MODULE)
+ else
+ sis_free(obj->req.offset);
+#endif
+ kfree(obj);
mutex_unlock(&dev->struct_mutex);
DRM_DEBUG("free = 0x%lx\n", mem->free);
@@ -220,18 +209,10 @@ static int sis_ioctl_agp_init(struct drm_device *dev, void *data,
{
drm_sis_private_t *dev_priv = dev->dev_private;
drm_sis_agp_t *agp = data;
- int ret;
dev_priv = dev->dev_private;
mutex_lock(&dev->struct_mutex);
- ret = drm_sman_set_range(&dev_priv->sman, AGP_TYPE, 0,
- agp->size >> SIS_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 >> SIS_MM_ALIGN_SHIFT);
dev_priv->agp_initialized = 1;
dev_priv->agp_offset = agp->offset;
@@ -325,9 +306,14 @@ void sis_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;
+ }
dev_priv->mmio = NULL;
mutex_unlock(&dev->struct_mutex);
}
@@ -336,7 +322,7 @@ void sis_reclaim_buffers_locked(struct drm_device *dev,
struct drm_file *file)
{
struct sis_file_private *file_priv = file->driver_priv;
- struct drm_memblock_item *entry, *next;
+ struct sis_memblock *entry, *next;
mutex_lock(&dev->struct_mutex);
if (list_empty(&file_priv->obj_list)) {
@@ -350,7 +336,14 @@ void sis_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);
+ if (drm_mm_node_allocated(&entry->mm_node))
+ drm_mm_remove_node(&entry->mm_node);
+#if defined(CONFIG_FB_SIS) || defined(CONFIG_FB_SIS_MODULE)
+ else
+ sis_free(entry->req->offset);
+#endif
+ kfree(entry);
}
mutex_unlock(&dev->struct_mutex);
return;
--
1.7.7.1
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