drm/ttm: remove available_caching

Instead of letting TTM make an educated guess based on
some mask all drivers should just specify what caching
they want for their CPU mappings.

Signed-off-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Dave Airlie <airlied@redhat.com>
Link: https://patchwork.freedesktop.org/patch/390207/

diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_gtt_mgr.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_gtt_mgr.c
index 12d6a01..f203e4a 100644 (file)
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_gtt_mgr.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_gtt_mgr.c
@@ -95,7 +95,6 @@ int amdgpu_gtt_mgr_init(struct amdgpu_device *adev, uint64_t gtt_size)
 
        man->use_tt = true;
        man->func = &amdgpu_gtt_mgr_func;
-       man->available_caching = TTM_PL_MASK_CACHING;
 
        ttm_resource_manager_init(man, gtt_size >> PAGE_SHIFT);
 

diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c
index 15ce752..c2678e0 100644 (file)
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c
@@ -68,7 +68,6 @@ static int amdgpu_ttm_init_on_chip(struct amdgpu_device *adev,
                                    uint64_t size)
 {
        return ttm_range_man_init(&adev->mman.bdev, type,
-                                 TTM_PL_FLAG_UNCACHED,
                                  false, size >> PAGE_SHIFT);
 }
 

diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_vram_mgr.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_vram_mgr.c
index f809d84..01c1171 100644 (file)
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_vram_mgr.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_vram_mgr.c
@@ -179,8 +179,6 @@ int amdgpu_vram_mgr_init(struct amdgpu_device *adev)
        struct ttm_resource_manager *man = &mgr->manager;
        int ret;
 
-       man->available_caching = TTM_PL_FLAG_UNCACHED | TTM_PL_FLAG_WC;
-
        ttm_resource_manager_init(man, adev->gmc.real_vram_size >> PAGE_SHIFT);
 
        man->func = &amdgpu_vram_mgr_func;

diff --git a/drivers/gpu/drm/drm_gem_vram_helper.c b/drivers/gpu/drm/drm_gem_vram_helper.c
index fff42bb..f963215 100644 (file)
--- a/drivers/gpu/drm/drm_gem_vram_helper.c
+++ b/drivers/gpu/drm/drm_gem_vram_helper.c
@@ -1057,7 +1057,6 @@ static int drm_vram_mm_init(struct drm_vram_mm *vmm, struct drm_device *dev,
                return ret;
 
        ret = ttm_range_man_init(&vmm->bdev, TTM_PL_VRAM,
-                                TTM_PL_FLAG_UNCACHED | TTM_PL_FLAG_WC,
                                 false, vram_size >> PAGE_SHIFT);
        if (ret)
                return ret;

diff --git a/drivers/gpu/drm/nouveau/nouveau_ttm.c b/drivers/gpu/drm/nouveau/nouveau_ttm.c
index 1b00f32..4273417 100644 (file)
--- a/drivers/gpu/drm/nouveau/nouveau_ttm.c
+++ b/drivers/gpu/drm/nouveau/nouveau_ttm.c
@@ -200,7 +200,6 @@ nouveau_ttm_init_vram(struct nouveau_drm *drm)
                if (!man)
                        return -ENOMEM;
 
-               man->available_caching = TTM_PL_FLAG_UNCACHED | TTM_PL_FLAG_WC;
                man->func = &nouveau_vram_manager;
 
                ttm_resource_manager_init(man,
@@ -209,9 +208,7 @@ nouveau_ttm_init_vram(struct nouveau_drm *drm)
                ttm_resource_manager_set_used(man, true);
                return 0;
        } else {
-               return ttm_range_man_init(&drm->ttm.bdev, TTM_PL_VRAM,
-                                         TTM_PL_FLAG_UNCACHED | TTM_PL_FLAG_WC,
-                                         false,
+               return ttm_range_man_init(&drm->ttm.bdev, TTM_PL_VRAM, false,
                                          drm->gem.vram_available >> PAGE_SHIFT);
        }
 }
@@ -243,8 +240,7 @@ nouveau_ttm_init_gtt(struct nouveau_drm *drm)
        else if (!drm->agp.bridge)
                func = &nv04_gart_manager;
        else
-               return ttm_range_man_init(&drm->ttm.bdev, TTM_PL_TT,
-                                         TTM_PL_MASK_CACHING, true,
+               return ttm_range_man_init(&drm->ttm.bdev, TTM_PL_TT, true,
                                          size_pages);
 
        man = kzalloc(sizeof(*man), GFP_KERNEL);
@@ -252,7 +248,6 @@ nouveau_ttm_init_gtt(struct nouveau_drm *drm)
                return -ENOMEM;
 
        man->func = func;
-       man->available_caching = TTM_PL_MASK_CACHING;
        man->use_tt = true;
        ttm_resource_manager_init(man, size_pages);
        ttm_set_driver_manager(&drm->ttm.bdev, TTM_PL_TT, man);

diff --git a/drivers/gpu/drm/qxl/qxl_ttm.c b/drivers/gpu/drm/qxl/qxl_ttm.c
index d39d799..bf3b091 100644 (file)
--- a/drivers/gpu/drm/qxl/qxl_ttm.c
+++ b/drivers/gpu/drm/qxl/qxl_ttm.c
@@ -202,8 +202,7 @@ static int qxl_ttm_init_mem_type(struct qxl_device *qdev,
                                 unsigned int type,
                                 uint64_t size)
 {
-       return ttm_range_man_init(&qdev->mman.bdev, type, TTM_PL_MASK_CACHING,
-                                 false, size);
+       return ttm_range_man_init(&qdev->mman.bdev, type, false, size);
 }
 
 int qxl_ttm_init(struct qxl_device *qdev)

diff --git a/drivers/gpu/drm/radeon/radeon_ttm.c b/drivers/gpu/drm/radeon/radeon_ttm.c
index b8e60b3..96be5c3 100644 (file)
--- a/drivers/gpu/drm/radeon/radeon_ttm.c
+++ b/drivers/gpu/drm/radeon/radeon_ttm.c
@@ -69,14 +69,12 @@ struct radeon_device *radeon_get_rdev(struct ttm_bo_device *bdev)
 static int radeon_ttm_init_vram(struct radeon_device *rdev)
 {
        return ttm_range_man_init(&rdev->mman.bdev, TTM_PL_VRAM,
-                                 TTM_PL_FLAG_UNCACHED | TTM_PL_FLAG_WC,
                                  false, rdev->mc.real_vram_size >> PAGE_SHIFT);
 }
 
 static int radeon_ttm_init_gtt(struct radeon_device *rdev)
 {
        return ttm_range_man_init(&rdev->mman.bdev, TTM_PL_TT,
-                                 TTM_PL_MASK_CACHING,
                                  true, rdev->mc.gtt_size >> PAGE_SHIFT);
 }
 

diff --git a/drivers/gpu/drm/ttm/ttm_bo.c b/drivers/gpu/drm/ttm/ttm_bo.c
index 43c0a5f..ee26321 100644 (file)
--- a/drivers/gpu/drm/ttm/ttm_bo.c
+++ b/drivers/gpu/drm/ttm/ttm_bo.c
@@ -910,11 +910,8 @@ static int ttm_bo_mem_placement(struct ttm_buffer_object *bo,
        if (!man || !ttm_resource_manager_used(man))
                return -EBUSY;
 
-       if ((place->flags & man->available_caching) == 0)
-               return -EBUSY;
-
-       cur_flags = place->flags & man->available_caching;
-       cur_flags = ttm_bo_select_caching(man, bo->mem.placement, cur_flags);
+       cur_flags = ttm_bo_select_caching(man, bo->mem.placement,
+                                         place->flags);
        cur_flags |= place->flags & ~TTM_PL_MASK_CACHING;
 
        mem->mem_type = place->mem_type;
@@ -1432,7 +1429,6 @@ static void ttm_bo_init_sysman(struct ttm_bo_device *bdev)
         * Other types need to be driver / IOCTL initialized.
         */
        man->use_tt = true;
-       man->available_caching = TTM_PL_MASK_CACHING;
 
        ttm_resource_manager_init(man, 0);
        ttm_set_driver_manager(bdev, TTM_PL_SYSTEM, man);

diff --git a/drivers/gpu/drm/ttm/ttm_range_manager.c b/drivers/gpu/drm/ttm/ttm_range_manager.c
index c80d9fa..1da0e27 100644 (file)
--- a/drivers/gpu/drm/ttm/ttm_range_manager.c
+++ b/drivers/gpu/drm/ttm/ttm_range_manager.c
@@ -113,9 +113,7 @@ static void ttm_range_man_free(struct ttm_resource_manager *man,
 static const struct ttm_resource_manager_func ttm_range_manager_func;
 
 int ttm_range_man_init(struct ttm_bo_device *bdev,
-                      unsigned type,
-                      uint32_t available_caching,
-                      bool use_tt,
+                      unsigned type, bool use_tt,
                       unsigned long p_size)
 {
        struct ttm_resource_manager *man;
@@ -126,7 +124,6 @@ int ttm_range_man_init(struct ttm_bo_device *bdev,
                return -ENOMEM;
 
        man = &rman->manager;
-       man->available_caching = available_caching;
        man->use_tt = use_tt;
 
        man->func = &ttm_range_manager_func;

diff --git a/drivers/gpu/drm/ttm/ttm_resource.c b/drivers/gpu/drm/ttm/ttm_resource.c
index 80e10c2..b325b92 100644 (file)
--- a/drivers/gpu/drm/ttm/ttm_resource.c
+++ b/drivers/gpu/drm/ttm/ttm_resource.c
@@ -140,7 +140,6 @@ void ttm_resource_manager_debug(struct ttm_resource_manager *man,
        drm_printf(p, "  use_type: %d\n", man->use_type);
        drm_printf(p, "  use_tt: %d\n", man->use_tt);
        drm_printf(p, "  size: %llu\n", man->size);
-       drm_printf(p, "  available_caching: 0x%08X\n", man->available_caching);
        if (man->func && man->func->debug)
                (*man->func->debug)(man, p);
 }

diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_drv.c b/drivers/gpu/drm/vmwgfx/vmwgfx_drv.c
index 1020c99..31e3e5c 100644 (file)
--- a/drivers/gpu/drm/vmwgfx/vmwgfx_drv.c
+++ b/drivers/gpu/drm/vmwgfx/vmwgfx_drv.c
@@ -626,8 +626,7 @@ static int vmw_vram_manager_init(struct vmw_private *dev_priv)
 #ifdef CONFIG_TRANSPARENT_HUGEPAGE
        ret = vmw_thp_init(dev_priv);
 #else
-       ret = ttm_range_man_init(&dev_priv->bdev, TTM_PL_VRAM,
-                                TTM_PL_FLAG_CACHED, false,
+       ret = ttm_range_man_init(&dev_priv->bdev, TTM_PL_VRAM, false,
                                 dev_priv->vram_size >> PAGE_SHIFT);
 #endif
        ttm_resource_manager_set_used(ttm_manager_type(&dev_priv->bdev, TTM_PL_VRAM), false);
@@ -882,8 +881,6 @@ static int vmw_driver_load(struct drm_device *dev, unsigned long chipset)
                DRM_ERROR("Failed initializing TTM buffer object driver.\n");
                goto out_no_bdev;
        }
-       ttm_manager_type(&dev_priv->bdev, TTM_PL_SYSTEM)->available_caching =
-               TTM_PL_FLAG_CACHED;
 
        /*
         * Enable VRAM, but initially don't use it until SVGA is enabled and

diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_gmrid_manager.c b/drivers/gpu/drm/vmwgfx/vmwgfx_gmrid_manager.c
index 2d81a27..db64c3a 100644 (file)
--- a/drivers/gpu/drm/vmwgfx/vmwgfx_gmrid_manager.c
+++ b/drivers/gpu/drm/vmwgfx/vmwgfx_gmrid_manager.c
@@ -112,7 +112,6 @@ int vmw_gmrid_man_init(struct vmw_private *dev_priv, int type)
        man = &gman->manager;
 
        man->func = &vmw_gmrid_manager_func;
-       man->available_caching = TTM_PL_FLAG_CACHED;
        /* TODO: This is most likely not correct */
        man->use_tt = true;
        ttm_resource_manager_init(man, 0);

diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_thp.c b/drivers/gpu/drm/vmwgfx/vmwgfx_thp.c
index b6cf576..63fe7da 100644 (file)
--- a/drivers/gpu/drm/vmwgfx/vmwgfx_thp.c
+++ b/drivers/gpu/drm/vmwgfx/vmwgfx_thp.c
@@ -123,24 +123,20 @@ static void vmw_thp_put_node(struct ttm_resource_manager *man,
 
 int vmw_thp_init(struct vmw_private *dev_priv)
 {
-       struct ttm_resource_manager *man;
        struct vmw_thp_manager *rman;
 
        rman = kzalloc(sizeof(*rman), GFP_KERNEL);
        if (!rman)
                return -ENOMEM;
 
-       man = &rman->manager;
-       man->available_caching = TTM_PL_FLAG_CACHED;
-
-       ttm_resource_manager_init(man,
+       ttm_resource_manager_init(&rman->manager,
                                  dev_priv->vram_size >> PAGE_SHIFT);
 
-       drm_mm_init(&rman->mm, 0, man->size);
+       drm_mm_init(&rman->mm, 0, rman->manager.size);
        spin_lock_init(&rman->lock);
 
        ttm_set_driver_manager(&dev_priv->bdev, TTM_PL_VRAM, &rman->manager);
-       ttm_resource_manager_set_used(man, true);
+       ttm_resource_manager_set_used(&rman->manager, true);
        return 0;
 }
 

diff --git a/include/drm/ttm/ttm_bo_driver.h b/include/drm/ttm/ttm_bo_driver.h
index bf000d6..0b7d186 100644 (file)
--- a/include/drm/ttm/ttm_bo_driver.h
+++ b/include/drm/ttm/ttm_bo_driver.h
@@ -689,7 +689,6 @@ pgprot_t ttm_io_prot(uint32_t caching_flags, pgprot_t tmp);
  *
  * @bdev: ttm device
  * @type: memory manager type
- * @available_caching: TTM_PL_FLAG_* for allowed caching modes
  * @use_tt: if the memory manager uses tt
  * @p_size: size of area to be managed in pages.
  *
@@ -697,9 +696,7 @@ pgprot_t ttm_io_prot(uint32_t caching_flags, pgprot_t tmp);
  * The range manager is installed for this device in the type slot.
  */
 int ttm_range_man_init(struct ttm_bo_device *bdev,
-                      unsigned type,
-                      uint32_t available_caching,
-                      bool use_tt,
+                      unsigned type, bool use_tt,
                       unsigned long p_size);
 
 /**

diff --git a/include/drm/ttm/ttm_resource.h b/include/drm/ttm/ttm_resource.h
index a6ae4bf..0e172d9 100644 (file)
--- a/include/drm/ttm/ttm_resource.h
+++ b/include/drm/ttm/ttm_resource.h
@@ -108,8 +108,6 @@ struct ttm_resource_manager_func {
  * @gpu_offset: If used, the GPU offset of the first managed page of
  * fixed memory or the first managed location in an aperture.
  * @size: Size of the managed region.
- * @available_caching: A mask of available caching types, TTM_PL_FLAG_XX,
- * as defined in ttm_placement_common.h
  * @func: structure pointer implementing the range manager. See above
  * @move_lock: lock for move fence
  * static information. bdev::driver::io_mem_free is never used.
@@ -125,7 +123,6 @@ struct ttm_resource_manager {
        bool use_type;
        bool use_tt;
        uint64_t size;
-       uint32_t available_caching;
        const struct ttm_resource_manager_func *func;
        spinlock_t move_lock;