Re: [PATCH 01/12] drm/ttm: add ttm_resource_fini

On Wed, Nov 24, 2021 at 08:44:19PM +0800, Christian König wrote:

Make sure we call the common cleanup function in all implementations of the resource manager.

Signed-off-by: Christian König christian.koenig@amd.com

drivers/gpu/drm/amd/amdgpu/amdgpu_gtt_mgr.c | 2 ++ drivers/gpu/drm/amd/amdgpu/amdgpu_preempt_mgr.c | 1 + drivers/gpu/drm/amd/amdgpu/amdgpu_vram_mgr.c | 2 ++ drivers/gpu/drm/i915/i915_ttm_buddy_manager.c | 1 + drivers/gpu/drm/nouveau/nouveau_mem.c | 3 ++- drivers/gpu/drm/nouveau/nouveau_mem.h | 3 ++- drivers/gpu/drm/nouveau/nouveau_ttm.c | 9 +++++---- drivers/gpu/drm/ttm/ttm_range_manager.c | 2 ++ drivers/gpu/drm/ttm/ttm_resource.c | 6 ++++++ drivers/gpu/drm/ttm/ttm_sys_manager.c | 1 + drivers/gpu/drm/vmwgfx/vmwgfx_gmrid_manager.c | 2 ++ drivers/gpu/drm/vmwgfx/vmwgfx_thp.c | 3 ++- include/drm/ttm/ttm_resource.h | 3 +++ 13 files changed, 31 insertions(+), 7 deletions(-)

diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_gtt_mgr.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_gtt_mgr.c index 675a72ef305d..ea5470c8c921 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_gtt_mgr.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_gtt_mgr.c @@ -169,6 +169,7 @@ static int amdgpu_gtt_mgr_new(struct ttm_resource_manager *man, return 0;

err_free:

• ttm_resource_fini(man, &node->base.base); kfree(node);

err_out: @@ -200,6 +201,7 @@ static void amdgpu_gtt_mgr_del(struct ttm_resource_manager *man, if (!(res->placement & TTM_PL_FLAG_TEMPORARY)) atomic64_sub(res->num_pages, &mgr->used);

• ttm_resource_fini(man, res); kfree(node);

}

diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_preempt_mgr.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_preempt_mgr.c index d02c8637f909..ffddec08e931 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_preempt_mgr.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_preempt_mgr.c @@ -95,6 +95,7 @@ static void amdgpu_preempt_mgr_del(struct ttm_resource_manager *man, struct amdgpu_preempt_mgr *mgr = to_preempt_mgr(man);

atomic64_sub(res->num_pages, &mgr->used);

• ttm_resource_fini(man, res); kfree(res);

}

diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_vram_mgr.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_vram_mgr.c index 7b2b0980ec41..55d68408951d 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_vram_mgr.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_vram_mgr.c @@ -476,6 +476,7 @@ static int amdgpu_vram_mgr_new(struct ttm_resource_manager *man, while (i--) drm_mm_remove_node(&node->mm_nodes[i]); spin_unlock(&mgr->lock);

• ttm_resource_fini(man, &node->base); kvfree(node);

error_sub: @@ -515,6 +516,7 @@ static void amdgpu_vram_mgr_del(struct ttm_resource_manager *man, atomic64_sub(usage, &mgr->usage); atomic64_sub(vis_usage, &mgr->vis_usage);

• ttm_resource_fini(man, res); kvfree(node);

}

diff --git a/drivers/gpu/drm/i915/i915_ttm_buddy_manager.c b/drivers/gpu/drm/i915/i915_ttm_buddy_manager.c index d59fbb019032..ca3ca1f7f850 100644 --- a/drivers/gpu/drm/i915/i915_ttm_buddy_manager.c +++ b/drivers/gpu/drm/i915/i915_ttm_buddy_manager.c @@ -123,6 +123,7 @@ static void i915_ttm_buddy_man_free(struct ttm_resource_manager *man, i915_buddy_free_list(&bman->mm, &bman_res->blocks); mutex_unlock(&bman->lock);

• ttm_resource_fini(man, res); kfree(bman_res);

}

diff --git a/drivers/gpu/drm/nouveau/nouveau_mem.c b/drivers/gpu/drm/nouveau/nouveau_mem.c index 2ca3207c13fc..2e517cdc24c9 100644 --- a/drivers/gpu/drm/nouveau/nouveau_mem.c +++ b/drivers/gpu/drm/nouveau/nouveau_mem.c @@ -162,11 +162,12 @@ nouveau_mem_vram(struct ttm_resource *reg, bool contig, u8 page) }

void -nouveau_mem_del(struct ttm_resource *reg) +nouveau_mem_del(struct ttm_resource_manager *man, struct ttm_resource *reg) { struct nouveau_mem *mem = nouveau_mem(reg);

nouveau_mem_fini(mem);

• ttm_resource_fini(man, reg); kfree(mem);

}

diff --git a/drivers/gpu/drm/nouveau/nouveau_mem.h b/drivers/gpu/drm/nouveau/nouveau_mem.h index 2c01166a90f2..325551eba5cd 100644 --- a/drivers/gpu/drm/nouveau/nouveau_mem.h +++ b/drivers/gpu/drm/nouveau/nouveau_mem.h @@ -23,7 +23,8 @@ nouveau_mem(struct ttm_resource *reg)

int nouveau_mem_new(struct nouveau_cli *, u8 kind, u8 comp, struct ttm_resource **); -void nouveau_mem_del(struct ttm_resource *); +void nouveau_mem_del(struct ttm_resource_manager *man,

•      struct ttm_resource *);
  

int nouveau_mem_vram(struct ttm_resource *, bool contig, u8 page); int nouveau_mem_host(struct ttm_resource *, struct ttm_tt *); void nouveau_mem_fini(struct nouveau_mem *); diff --git a/drivers/gpu/drm/nouveau/nouveau_ttm.c b/drivers/gpu/drm/nouveau/nouveau_ttm.c index 2ca9d9a9e5d5..91ef33f8f22c 100644 --- a/drivers/gpu/drm/nouveau/nouveau_ttm.c +++ b/drivers/gpu/drm/nouveau/nouveau_ttm.c @@ -36,9 +36,10 @@ #include <core/tegra.h>

static void -nouveau_manager_del(struct ttm_resource_manager *man, struct ttm_resource *reg) +nouveau_manager_del(struct ttm_resource_manager *man,

•     struct ttm_resource *reg)
  

{

• nouveau_mem_del(reg);

• nouveau_mem_del(man, reg);

}

static int @@ -62,7 +63,7 @@ nouveau_vram_manager_new(struct ttm_resource_manager *man,

ret = nouveau_mem_vram(*res, nvbo->contig, nvbo->page); if (ret) {

• nouveau_mem_del(*res);
  

• nouveau_mem_del(man, *res);
  

  return ret; }

@@ -118,7 +119,7 @@ nv04_gart_manager_new(struct ttm_resource_manager *man, ret = nvif_vmm_get(&mem->cli->vmm.vmm, PTES, false, 12, 0, (long)(*res)->num_pages << PAGE_SHIFT, &mem->vma[0]); if (ret) {

• nouveau_mem_del(*res);
  

• nouveau_mem_del(man, *res);
  

  return ret; }

diff --git a/drivers/gpu/drm/ttm/ttm_range_manager.c b/drivers/gpu/drm/ttm/ttm_range_manager.c index 67d68a4a8640..25fcf0d63c2d 100644 --- a/drivers/gpu/drm/ttm/ttm_range_manager.c +++ b/drivers/gpu/drm/ttm/ttm_range_manager.c @@ -89,6 +89,7 @@ static int ttm_range_man_alloc(struct ttm_resource_manager *man, spin_unlock(&rman->lock);

if (unlikely(ret)) {

• ttm_resource_fini(man, *res);
  

  kfree(node); return ret; }

@@ -108,6 +109,7 @@ static void ttm_range_man_free(struct ttm_resource_manager *man, drm_mm_remove_node(&node->mm_nodes[0]); spin_unlock(&rman->lock);

• ttm_resource_fini(man, res); kfree(node);

}

diff --git a/drivers/gpu/drm/ttm/ttm_resource.c b/drivers/gpu/drm/ttm/ttm_resource.c index 035d71332d18..89bcfe22a0ca 100644 --- a/drivers/gpu/drm/ttm/ttm_resource.c +++ b/drivers/gpu/drm/ttm/ttm_resource.c @@ -44,6 +44,12 @@ void ttm_resource_init(struct ttm_buffer_object *bo, } EXPORT_SYMBOL(ttm_resource_init);

+void ttm_resource_fini(struct ttm_resource_manager *man,

•        struct ttm_resource *res)
  

+{

Maybe we should clean up the res data here. E.X. memset(res, 0, sizeof(*res). The previous data should invalid while we call fini.

Thanks, Ray

+} +EXPORT_SYMBOL(ttm_resource_fini);

int ttm_resource_alloc(struct ttm_buffer_object *bo, const struct ttm_place *place, struct ttm_resource **res_ptr) diff --git a/drivers/gpu/drm/ttm/ttm_sys_manager.c b/drivers/gpu/drm/ttm/ttm_sys_manager.c index 63aca52f75e1..135394dcca95 100644 --- a/drivers/gpu/drm/ttm/ttm_sys_manager.c +++ b/drivers/gpu/drm/ttm/ttm_sys_manager.c @@ -23,6 +23,7 @@ static int ttm_sys_man_alloc(struct ttm_resource_manager *man, static void ttm_sys_man_free(struct ttm_resource_manager *man, struct ttm_resource *res) {

• ttm_resource_fini(man, res); kfree(res);

}

diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_gmrid_manager.c b/drivers/gpu/drm/vmwgfx/vmwgfx_gmrid_manager.c index b2c4af331c9d..bfd686bb8d19 100644 --- a/drivers/gpu/drm/vmwgfx/vmwgfx_gmrid_manager.c +++ b/drivers/gpu/drm/vmwgfx/vmwgfx_gmrid_manager.c @@ -116,6 +116,7 @@ static int vmw_gmrid_man_get_node(struct ttm_resource_manager *man, gman->used_gmr_pages -= (*res)->num_pages; spin_unlock(&gman->lock); ida_free(&gman->gmr_ida, id);

• ttm_resource_fini(man, *res); kfree(*res); return -ENOSPC;

} @@ -129,6 +130,7 @@ static void vmw_gmrid_man_put_node(struct ttm_resource_manager *man, spin_lock(&gman->lock); gman->used_gmr_pages -= res->num_pages; spin_unlock(&gman->lock);

• ttm_resource_fini(man, res); kfree(res);

}

diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_thp.c b/drivers/gpu/drm/vmwgfx/vmwgfx_thp.c index 2a3d3468e4e0..4fcbd94ccc11 100644 --- a/drivers/gpu/drm/vmwgfx/vmwgfx_thp.c +++ b/drivers/gpu/drm/vmwgfx/vmwgfx_thp.c @@ -104,6 +104,7 @@ static int vmw_thp_get_node(struct ttm_resource_manager *man, spin_unlock(&rman->lock);

if (unlikely(ret)) {

• ttm_resource_fini(man, &node->base);
  

  kfree(node); } else { node->base.start = node->mm_nodes[0].start;

@@ -122,7 +123,7 @@ static void vmw_thp_put_node(struct ttm_resource_manager *man, spin_lock(&rman->lock); drm_mm_remove_node(&node->mm_nodes[0]); spin_unlock(&rman->lock);

• ttm_resource_fini(man, res); kfree(node);

}

diff --git a/include/drm/ttm/ttm_resource.h b/include/drm/ttm/ttm_resource.h index 5952051091cd..df1f06b7b504 100644 --- a/include/drm/ttm/ttm_resource.h +++ b/include/drm/ttm/ttm_resource.h @@ -261,6 +261,9 @@ ttm_resource_manager_cleanup(struct ttm_resource_manager *man) void ttm_resource_init(struct ttm_buffer_object *bo, const struct ttm_place *place, struct ttm_resource *res); +void ttm_resource_fini(struct ttm_resource_manager *man,

•        struct ttm_resource *res);
  

int ttm_resource_alloc(struct ttm_buffer_object *bo, const struct ttm_place *place, struct ttm_resource **res); -- 2.25.1