From 3c90424bd7df15eb062ae9e6518886a706ed0d84 Mon Sep 17 00:00:00 2001 From: Dave Airlie Date: Tue, 4 Aug 2020 12:55:47 +1000 Subject: [PATCH] drm/ttm: provide a driver-led init path for range mm manager. (v2) MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit This lets the generic range mm manager be initialised by the driver. v2: add docs. rename api to range_man_init for now. Reviewed-by: Christian König Signed-off-by: Dave Airlie Link: https://patchwork.freedesktop.org/patch/msgid/20200804025632.3868079-15-airlied@gmail.com --- drivers/gpu/drm/ttm/ttm_bo_manager.c | 23 ++++++++++++++++++++--- include/drm/ttm/ttm_bo_driver.h | 14 ++++++++++++++ 2 files changed, 34 insertions(+), 3 deletions(-) diff --git a/drivers/gpu/drm/ttm/ttm_bo_manager.c b/drivers/gpu/drm/ttm/ttm_bo_manager.c index facd3049c3aa..eb86c8694f47 100644 --- a/drivers/gpu/drm/ttm/ttm_bo_manager.c +++ b/drivers/gpu/drm/ttm/ttm_bo_manager.c @@ -104,8 +104,8 @@ static void ttm_bo_man_put_node(struct ttm_mem_type_manager *man, } } -static int ttm_bo_man_init(struct ttm_mem_type_manager *man, - unsigned long p_size) +static int ttm_bo_man_init_private(struct ttm_mem_type_manager *man, + unsigned long p_size) { struct ttm_range_manager *rman; @@ -119,6 +119,23 @@ static int ttm_bo_man_init(struct ttm_mem_type_manager *man, return 0; } +int ttm_range_man_init(struct ttm_bo_device *bdev, + struct ttm_mem_type_manager *man, + unsigned long p_size) +{ + int ret; + + man->func = &ttm_bo_manager_func; + + ttm_mem_type_manager_init(bdev, man, p_size); + ret = ttm_bo_man_init_private(man, p_size); + if (ret) + return ret; + ttm_mem_type_manager_set_used(man, true); + return 0; +} +EXPORT_SYMBOL(ttm_range_man_init); + static int ttm_bo_man_takedown(struct ttm_mem_type_manager *man) { struct ttm_range_manager *rman = (struct ttm_range_manager *) man->priv; @@ -147,7 +164,7 @@ static void ttm_bo_man_debug(struct ttm_mem_type_manager *man, } const struct ttm_mem_type_manager_func ttm_bo_manager_func = { - .init = ttm_bo_man_init, + .init = ttm_bo_man_init_private, .takedown = ttm_bo_man_takedown, .get_node = ttm_bo_man_get_node, .put_node = ttm_bo_man_put_node, diff --git a/include/drm/ttm/ttm_bo_driver.h b/include/drm/ttm/ttm_bo_driver.h index 02aa1b996b3a..23352053df36 100644 --- a/include/drm/ttm/ttm_bo_driver.h +++ b/include/drm/ttm/ttm_bo_driver.h @@ -819,6 +819,20 @@ int ttm_bo_pipeline_gutting(struct ttm_buffer_object *bo); */ pgprot_t ttm_io_prot(uint32_t caching_flags, pgprot_t tmp); +/** + * ttm_range_man_init + * + * @bdev: ttm device + * @man: the manager to initialise with the range manager. + * @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_bo_device *bdev, + struct ttm_mem_type_manager *man, + unsigned long p_size); + extern const struct ttm_mem_type_manager_func ttm_bo_manager_func; /**