[PATCH] drm/ttm: remove default caching
Dave Airlie
airlied at gmail.com
Mon Sep 14 21:52:47 UTC 2020
Reviewed-by: Dave Airlie <airlied at redhat.com>
On Fri, 11 Sep 2020 at 23:10, Christian König
<ckoenig.leichtzumerken at gmail.com> wrote:
>
> As far as I can tell this was never used either and we just
> always fallback to the order cached > wc > uncached anyway.
>
> Signed-off-by: Christian König <christian.koenig at amd.com>
> ---
> drivers/gpu/drm/amd/amdgpu/amdgpu_gtt_mgr.c | 1 -
> drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c | 2 +-
> drivers/gpu/drm/amd/amdgpu/amdgpu_vram_mgr.c | 1 -
> drivers/gpu/drm/drm_gem_vram_helper.c | 3 +--
> drivers/gpu/drm/nouveau/nouveau_ttm.c | 21 +++++++------------
> drivers/gpu/drm/qxl/qxl_ttm.c | 2 +-
> drivers/gpu/drm/radeon/radeon_ttm.c | 6 ++----
> drivers/gpu/drm/ttm/ttm_bo.c | 3 ---
> drivers/gpu/drm/ttm/ttm_range_manager.c | 2 --
> drivers/gpu/drm/ttm/ttm_resource.c | 1 -
> drivers/gpu/drm/vmwgfx/vmwgfx_drv.c | 4 ++--
> drivers/gpu/drm/vmwgfx/vmwgfx_gmrid_manager.c | 1 -
> drivers/gpu/drm/vmwgfx/vmwgfx_thp.c | 1 -
> include/drm/ttm/ttm_bo_driver.h | 2 --
> include/drm/ttm/ttm_resource.h | 3 ---
> 15 files changed, 14 insertions(+), 39 deletions(-)
>
> diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_gtt_mgr.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_gtt_mgr.c
> index 697bc2c6fdb2..b2ca693b8285 100644
> --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_gtt_mgr.c
> +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_gtt_mgr.c
> @@ -94,7 +94,6 @@ 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;
> - man->default_caching = TTM_PL_FLAG_CACHED;
>
> 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 651365183e75..96aa8fcb9115 100644
> --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c
> +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c
> @@ -68,7 +68,7 @@ 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, TTM_PL_FLAG_UNCACHED,
> + 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 7574be6cd7a0..8b4a9ab66586 100644
> --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_vram_mgr.c
> +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_vram_mgr.c
> @@ -178,7 +178,6 @@ int amdgpu_vram_mgr_init(struct amdgpu_device *adev)
> int ret;
>
> man->available_caching = TTM_PL_FLAG_UNCACHED | TTM_PL_FLAG_WC;
> - man->default_caching = TTM_PL_FLAG_WC;
>
> ttm_resource_manager_init(man, adev->gmc.real_vram_size >> PAGE_SHIFT);
>
> diff --git a/drivers/gpu/drm/drm_gem_vram_helper.c b/drivers/gpu/drm/drm_gem_vram_helper.c
> index 5f10aa7aa099..34dc665eb891 100644
> --- a/drivers/gpu/drm/drm_gem_vram_helper.c
> +++ b/drivers/gpu/drm/drm_gem_vram_helper.c
> @@ -1106,8 +1106,7 @@ static int drm_vram_mm_init(struct drm_vram_mm *vmm, struct drm_device *dev,
>
> ret = ttm_range_man_init(&vmm->bdev, TTM_PL_VRAM,
> TTM_PL_FLAG_UNCACHED | TTM_PL_FLAG_WC,
> - TTM_PL_FLAG_WC, false,
> - vram_size >> PAGE_SHIFT);
> + 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 a62f37b1131c..cf18f75cd0f1 100644
> --- a/drivers/gpu/drm/nouveau/nouveau_ttm.c
> +++ b/drivers/gpu/drm/nouveau/nouveau_ttm.c
> @@ -203,12 +203,9 @@ nouveau_ttm_init_vram(struct nouveau_drm *drm)
> return -ENOMEM;
>
> man->available_caching = TTM_PL_FLAG_UNCACHED | TTM_PL_FLAG_WC;
> - man->default_caching = TTM_PL_FLAG_WC;
>
> - if (type & NVIF_MEM_UNCACHED) {
> + if (type & NVIF_MEM_UNCACHED)
> man->available_caching = TTM_PL_FLAG_UNCACHED;
> - man->default_caching = TTM_PL_FLAG_UNCACHED;
> - }
>
> man->func = &nouveau_vram_manager;
>
> @@ -220,7 +217,7 @@ nouveau_ttm_init_vram(struct nouveau_drm *drm)
> } else {
> return ttm_range_man_init(&drm->ttm.bdev, TTM_PL_VRAM,
> TTM_PL_FLAG_UNCACHED | TTM_PL_FLAG_WC,
> - TTM_PL_FLAG_WC, false,
> + false,
> drm->gem.vram_available >> PAGE_SHIFT);
> }
> }
> @@ -245,16 +242,14 @@ nouveau_ttm_init_gtt(struct nouveau_drm *drm)
> {
> struct ttm_resource_manager *man;
> unsigned long size_pages = drm->gem.gart_available >> PAGE_SHIFT;
> - unsigned available_caching, default_caching;
> const struct ttm_resource_manager_func *func = NULL;
> - if (drm->agp.bridge) {
> + unsigned available_caching;
> +
> + if (drm->agp.bridge)
> available_caching = TTM_PL_FLAG_UNCACHED |
> TTM_PL_FLAG_WC;
> - default_caching = TTM_PL_FLAG_WC;
> - } else {
> + else
> available_caching = TTM_PL_MASK_CACHING;
> - default_caching = TTM_PL_FLAG_CACHED;
> - }
>
> if (drm->client.device.info.family >= NV_DEVICE_INFO_V0_TESLA)
> func = &nouveau_gart_manager;
> @@ -262,8 +257,7 @@ nouveau_ttm_init_gtt(struct nouveau_drm *drm)
> func = &nv04_gart_manager;
> else
> return ttm_range_man_init(&drm->ttm.bdev, TTM_PL_TT,
> - available_caching, default_caching,
> - true,
> + available_caching, true,
> size_pages);
>
> man = kzalloc(sizeof(*man), GFP_KERNEL);
> @@ -272,7 +266,6 @@ nouveau_ttm_init_gtt(struct nouveau_drm *drm)
>
> man->func = func;
> man->available_caching = available_caching;
> - man->default_caching = default_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 5ffc8b752f01..d39d7994ea34 100644
> --- a/drivers/gpu/drm/qxl/qxl_ttm.c
> +++ b/drivers/gpu/drm/qxl/qxl_ttm.c
> @@ -203,7 +203,7 @@ static int qxl_ttm_init_mem_type(struct qxl_device *qdev,
> uint64_t size)
> {
> return ttm_range_man_init(&qdev->mman.bdev, type, TTM_PL_MASK_CACHING,
> - TTM_PL_FLAG_CACHED, false, size);
> + 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 602a591a53dc..b8e60b3630d7 100644
> --- a/drivers/gpu/drm/radeon/radeon_ttm.c
> +++ b/drivers/gpu/drm/radeon/radeon_ttm.c
> @@ -70,16 +70,14 @@ 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,
> - TTM_PL_FLAG_WC, false,
> - rdev->mc.real_vram_size >> PAGE_SHIFT);
> + 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,
> - TTM_PL_FLAG_CACHED, true,
> - rdev->mc.gtt_size >> PAGE_SHIFT);
> + true, rdev->mc.gtt_size >> PAGE_SHIFT);
> }
>
> static void radeon_evict_flags(struct ttm_buffer_object *bo,
> diff --git a/drivers/gpu/drm/ttm/ttm_bo.c b/drivers/gpu/drm/ttm/ttm_bo.c
> index e2bfe3a13c63..43c0a5f09d67 100644
> --- a/drivers/gpu/drm/ttm/ttm_bo.c
> +++ b/drivers/gpu/drm/ttm/ttm_bo.c
> @@ -876,8 +876,6 @@ static uint32_t ttm_bo_select_caching(struct ttm_resource_manager *man,
>
> if ((cur_placement & caching) != 0)
> result |= (cur_placement & caching);
> - else if ((man->default_caching & caching) != 0)
> - result |= man->default_caching;
> else if ((TTM_PL_FLAG_CACHED & caching) != 0)
> result |= TTM_PL_FLAG_CACHED;
> else if ((TTM_PL_FLAG_WC & caching) != 0)
> @@ -1435,7 +1433,6 @@ static void ttm_bo_init_sysman(struct ttm_bo_device *bdev)
> */
> man->use_tt = true;
> man->available_caching = TTM_PL_MASK_CACHING;
> - man->default_caching = TTM_PL_FLAG_CACHED;
>
> 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 770c8988c139..c80d9fa022f7 100644
> --- a/drivers/gpu/drm/ttm/ttm_range_manager.c
> +++ b/drivers/gpu/drm/ttm/ttm_range_manager.c
> @@ -115,7 +115,6 @@ 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,
> - uint32_t default_caching,
> bool use_tt,
> unsigned long p_size)
> {
> @@ -128,7 +127,6 @@ int ttm_range_man_init(struct ttm_bo_device *bdev,
>
> man = &rman->manager;
> man->available_caching = available_caching;
> - man->default_caching = default_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 3a4602f9a03b..80e10c28f3e8 100644
> --- a/drivers/gpu/drm/ttm/ttm_resource.c
> +++ b/drivers/gpu/drm/ttm/ttm_resource.c
> @@ -141,7 +141,6 @@ void ttm_resource_manager_debug(struct ttm_resource_manager *man,
> 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);
> - drm_printf(p, " default_caching: 0x%08X\n", man->default_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 e60012886065..1020c991fd9b 100644
> --- a/drivers/gpu/drm/vmwgfx/vmwgfx_drv.c
> +++ b/drivers/gpu/drm/vmwgfx/vmwgfx_drv.c
> @@ -627,8 +627,8 @@ static int vmw_vram_manager_init(struct vmw_private *dev_priv)
> ret = vmw_thp_init(dev_priv);
> #else
> ret = ttm_range_man_init(&dev_priv->bdev, TTM_PL_VRAM,
> - TTM_PL_FLAG_CACHED, TTM_PL_FLAG_CACHED,
> - false, dev_priv->vram_size >> PAGE_SHIFT);
> + TTM_PL_FLAG_CACHED, false,
> + dev_priv->vram_size >> PAGE_SHIFT);
> #endif
> ttm_resource_manager_set_used(ttm_manager_type(&dev_priv->bdev, TTM_PL_VRAM), false);
> return ret;
> diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_gmrid_manager.c b/drivers/gpu/drm/vmwgfx/vmwgfx_gmrid_manager.c
> index bb76acb5b0fc..2d81a276b301 100644
> --- a/drivers/gpu/drm/vmwgfx/vmwgfx_gmrid_manager.c
> +++ b/drivers/gpu/drm/vmwgfx/vmwgfx_gmrid_manager.c
> @@ -113,7 +113,6 @@ int vmw_gmrid_man_init(struct vmw_private *dev_priv, int type)
>
> man->func = &vmw_gmrid_manager_func;
> man->available_caching = TTM_PL_FLAG_CACHED;
> - man->default_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 3c00a9e7cfcc..b6cf5763c937 100644
> --- a/drivers/gpu/drm/vmwgfx/vmwgfx_thp.c
> +++ b/drivers/gpu/drm/vmwgfx/vmwgfx_thp.c
> @@ -132,7 +132,6 @@ int vmw_thp_init(struct vmw_private *dev_priv)
>
> man = &rman->manager;
> man->available_caching = TTM_PL_FLAG_CACHED;
> - man->default_caching = TTM_PL_FLAG_CACHED;
>
> ttm_resource_manager_init(man,
> dev_priv->vram_size >> PAGE_SHIFT);
> diff --git a/include/drm/ttm/ttm_bo_driver.h b/include/drm/ttm/ttm_bo_driver.h
> index 303a89d1066d..bf000d69e533 100644
> --- a/include/drm/ttm/ttm_bo_driver.h
> +++ b/include/drm/ttm/ttm_bo_driver.h
> @@ -690,7 +690,6 @@ 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
> - * @default_caching: default caching mode
> * @use_tt: if the memory manager uses tt
> * @p_size: size of area to be managed in pages.
> *
> @@ -700,7 +699,6 @@ pgprot_t ttm_io_prot(uint32_t caching_flags, pgprot_t tmp);
> int ttm_range_man_init(struct ttm_bo_device *bdev,
> unsigned type,
> uint32_t available_caching,
> - uint32_t default_caching,
> bool use_tt,
> unsigned long p_size);
>
> diff --git a/include/drm/ttm/ttm_resource.h b/include/drm/ttm/ttm_resource.h
> index 7b8a3157fbb3..a6ae4bf9c3e1 100644
> --- a/include/drm/ttm/ttm_resource.h
> +++ b/include/drm/ttm/ttm_resource.h
> @@ -110,8 +110,6 @@ struct ttm_resource_manager_func {
> * @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
> - * @default_caching: The default caching policy used for a buffer object
> - * placed in this memory type if the user doesn't provide one.
> * @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.
> @@ -128,7 +126,6 @@ struct ttm_resource_manager {
> bool use_tt;
> uint64_t size;
> uint32_t available_caching;
> - uint32_t default_caching;
> const struct ttm_resource_manager_func *func;
> spinlock_t move_lock;
>
> --
> 2.17.1
>
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