From: Daniel Vetter Date: Wed, 26 Oct 2011 20:21:13 +0000 (+0200) Subject: drm/via: use drm_mm instead of drm_sman X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=977b4f6edd7a960dd80c1a614a7644068f866c5b;p=GitHub%2Fexynos8895%2Fandroid_kernel_samsung_universal8895.git drm/via: use drm_mm instead of drm_sman To make the transition in a piece-wise and bisectable way possible, I've hijacked the ->owner_list from drm_sman. While transitioning, the list_add was done by the driver, while the list_del was still done by the dying sman code. Now that we are in full control of ->owner_list, do the list_del ourselves. v2: Better explain the list_del trickery as suggested by Chris Wilson. Signed-off-by: Daniel Vetter --- diff --git a/drivers/gpu/drm/via/via_drv.h b/drivers/gpu/drm/via/via_drv.h index 108ea71f399d..88edacc93006 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 fa5afbcf7e28..a2ab34365151 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 e6f2b6371b4e..bedb23d2ece0 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; @@ -161,15 +165,15 @@ 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; @@ -184,7 +188,7 @@ 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); @@ -195,7 +199,9 @@ 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); @@ -208,7 +214,7 @@ 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)) { @@ -221,7 +227,9 @@ 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;