diff options
author | Christian König <christian.koenig@amd.com> | 2021-04-17 18:48:36 +0200 |
---|---|---|
committer | Christian König <christian.koenig@amd.com> | 2021-06-04 15:16:45 +0200 |
commit | 3eb7d96e94150304011d214750b45766cf62d9c9 (patch) | |
tree | eaed91606a2a0bd30d82dbd993fc642efa5e2345 /drivers/gpu/drm/ttm | |
parent | bfa3357ef9abc9d56a2910222d2deeb9f15c91ff (diff) |
drm/ttm: flip over the range manager to self allocated nodes
Start with the range manager to make the resource object the base
class for the allocated nodes.
While at it cleanup a lot of the code around that.
Signed-off-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Matthew Auld <matthew.auld@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20210602100914.46246-2-christian.koenig@amd.com
Diffstat (limited to 'drivers/gpu/drm/ttm')
-rw-r--r-- | drivers/gpu/drm/ttm/ttm_range_manager.c | 56 | ||||
-rw-r--r-- | drivers/gpu/drm/ttm/ttm_resource.c | 26 |
2 files changed, 58 insertions, 24 deletions
diff --git a/drivers/gpu/drm/ttm/ttm_range_manager.c b/drivers/gpu/drm/ttm/ttm_range_manager.c index b9d5da6e6a81..ce5d07ca384c 100644 --- a/drivers/gpu/drm/ttm/ttm_range_manager.c +++ b/drivers/gpu/drm/ttm/ttm_range_manager.c @@ -29,12 +29,13 @@ * Authors: Thomas Hellstrom <thellstrom-at-vmware-dot-com> */ -#include <drm/ttm/ttm_bo_driver.h> +#include <drm/ttm/ttm_device.h> #include <drm/ttm/ttm_placement.h> +#include <drm/ttm/ttm_range_manager.h> +#include <drm/ttm/ttm_bo_api.h> #include <drm/drm_mm.h> #include <linux/slab.h> #include <linux/spinlock.h> -#include <linux/module.h> /* * Currently we use a spinlock for the lock, but a mutex *may* be @@ -60,8 +61,8 @@ static int ttm_range_man_alloc(struct ttm_resource_manager *man, struct ttm_resource *mem) { struct ttm_range_manager *rman = to_range_manager(man); + struct ttm_range_mgr_node *node; struct drm_mm *mm = &rman->mm; - struct drm_mm_node *node; enum drm_mm_insert_mode mode; unsigned long lpfn; int ret; @@ -70,7 +71,7 @@ static int ttm_range_man_alloc(struct ttm_resource_manager *man, if (!lpfn) lpfn = man->size; - node = kzalloc(sizeof(*node), GFP_KERNEL); + node = kzalloc(struct_size(node, mm_nodes, 1), GFP_KERNEL); if (!node) return -ENOMEM; @@ -78,17 +79,19 @@ static int ttm_range_man_alloc(struct ttm_resource_manager *man, if (place->flags & TTM_PL_FLAG_TOPDOWN) mode = DRM_MM_INSERT_HIGH; + ttm_resource_init(bo, place, &node->base); + spin_lock(&rman->lock); - ret = drm_mm_insert_node_in_range(mm, node, mem->num_pages, - bo->page_alignment, 0, + ret = drm_mm_insert_node_in_range(mm, &node->mm_nodes[0], + mem->num_pages, bo->page_alignment, 0, place->fpfn, lpfn, mode); spin_unlock(&rman->lock); if (unlikely(ret)) { kfree(node); } else { - mem->mm_node = node; - mem->start = node->start; + mem->mm_node = &node->mm_nodes[0]; + mem->start = node->mm_nodes[0].start; } return ret; @@ -98,15 +101,19 @@ static void ttm_range_man_free(struct ttm_resource_manager *man, struct ttm_resource *mem) { struct ttm_range_manager *rman = to_range_manager(man); + struct ttm_range_mgr_node *node; - if (mem->mm_node) { - spin_lock(&rman->lock); - drm_mm_remove_node(mem->mm_node); - spin_unlock(&rman->lock); + if (!mem->mm_node) + return; - kfree(mem->mm_node); - mem->mm_node = NULL; - } + node = to_ttm_range_mgr_node(mem); + + spin_lock(&rman->lock); + drm_mm_remove_node(&node->mm_nodes[0]); + spin_unlock(&rman->lock); + + kfree(node); + mem->mm_node = NULL; } static void ttm_range_man_debug(struct ttm_resource_manager *man, @@ -125,6 +132,17 @@ static const struct ttm_resource_manager_func ttm_range_manager_func = { .debug = ttm_range_man_debug }; +/** + * ttm_range_man_init + * + * @bdev: ttm device + * @type: memory manager type + * @use_tt: if the memory manager uses tt + * @p_size: size of area to be managed in pages. + * + * Initialise a generic range manager for the selected memory type. + * The range manager is installed for this device in the type slot. + */ int ttm_range_man_init(struct ttm_device *bdev, unsigned type, bool use_tt, unsigned long p_size) @@ -152,6 +170,14 @@ int ttm_range_man_init(struct ttm_device *bdev, } EXPORT_SYMBOL(ttm_range_man_init); +/** + * ttm_range_man_fini + * + * @bdev: ttm device + * @type: memory manager type + * + * Remove the generic range manager from a slot and tear it down. + */ int ttm_range_man_fini(struct ttm_device *bdev, unsigned type) { diff --git a/drivers/gpu/drm/ttm/ttm_resource.c b/drivers/gpu/drm/ttm/ttm_resource.c index 65451e1bc303..2a51ace17614 100644 --- a/drivers/gpu/drm/ttm/ttm_resource.c +++ b/drivers/gpu/drm/ttm/ttm_resource.c @@ -25,6 +25,22 @@ #include <drm/ttm/ttm_resource.h> #include <drm/ttm/ttm_bo_driver.h> +void ttm_resource_init(struct ttm_buffer_object *bo, + const struct ttm_place *place, + struct ttm_resource *res) +{ + res->mm_node = NULL; + res->start = 0; + res->num_pages = PFN_UP(bo->base.size); + res->mem_type = place->mem_type; + res->placement = place->flags; + res->bus.addr = NULL; + res->bus.offset = 0; + res->bus.is_iomem = false; + res->bus.caching = ttm_cached; +} +EXPORT_SYMBOL(ttm_resource_init); + int ttm_resource_alloc(struct ttm_buffer_object *bo, const struct ttm_place *place, struct ttm_resource **res_ptr) @@ -38,15 +54,7 @@ int ttm_resource_alloc(struct ttm_buffer_object *bo, if (!res) return -ENOMEM; - res->mm_node = NULL; - res->start = 0; - res->num_pages = PFN_UP(bo->base.size); - res->mem_type = place->mem_type; - res->placement = place->flags; - res->bus.addr = NULL; - res->bus.offset = 0; - res->bus.is_iomem = false; - res->bus.caching = ttm_cached; + ttm_resource_init(bo, place, res); r = man->func->alloc(man, bo, place, res); if (r) { kfree(res); |