After adding dma_dev in struct drm_device and drm_gem_cma_dumb_create_no_kmap(), drm_gem_cma_object could replace mtk_drm_gem_obj, so use drm_gem_cma_object instead of mtk_drm_gem_obj to reduce redundant code.
Signed-off-by: CK Hu <[email protected]> --- drivers/gpu/drm/mediatek/Makefile | 1 - drivers/gpu/drm/mediatek/mtk_drm_crtc.c | 1 - drivers/gpu/drm/mediatek/mtk_drm_drv.c | 15 +- drivers/gpu/drm/mediatek/mtk_drm_drv.h | 1 - drivers/gpu/drm/mediatek/mtk_drm_fb.c | 1 - drivers/gpu/drm/mediatek/mtk_drm_gem.c | 243 ------------------------------- drivers/gpu/drm/mediatek/mtk_drm_gem.h | 56 ------- drivers/gpu/drm/mediatek/mtk_drm_plane.c | 8 +- 8 files changed, 11 insertions(+), 315 deletions(-) delete mode 100644 drivers/gpu/drm/mediatek/mtk_drm_gem.c delete mode 100644 drivers/gpu/drm/mediatek/mtk_drm_gem.h diff --git a/drivers/gpu/drm/mediatek/Makefile b/drivers/gpu/drm/mediatek/Makefile index ce83c39..c4fa126 100644 --- a/drivers/gpu/drm/mediatek/Makefile +++ b/drivers/gpu/drm/mediatek/Makefile @@ -7,7 +7,6 @@ mediatek-drm-y := mtk_disp_color.o \ mtk_drm_ddp_comp.o \ mtk_drm_drv.o \ mtk_drm_fb.o \ - mtk_drm_gem.o \ mtk_drm_plane.o \ mtk_dsi.o \ mtk_mipi_tx.o \ diff --git a/drivers/gpu/drm/mediatek/mtk_drm_crtc.c b/drivers/gpu/drm/mediatek/mtk_drm_crtc.c index 92ecb9b..534c22a 100644 --- a/drivers/gpu/drm/mediatek/mtk_drm_crtc.c +++ b/drivers/gpu/drm/mediatek/mtk_drm_crtc.c @@ -24,7 +24,6 @@ #include "mtk_drm_crtc.h" #include "mtk_drm_ddp.h" #include "mtk_drm_ddp_comp.h" -#include "mtk_drm_gem.h" #include "mtk_drm_plane.h" /** diff --git a/drivers/gpu/drm/mediatek/mtk_drm_drv.c b/drivers/gpu/drm/mediatek/mtk_drm_drv.c index 47ec604..306ba29 100644 --- a/drivers/gpu/drm/mediatek/mtk_drm_drv.c +++ b/drivers/gpu/drm/mediatek/mtk_drm_drv.c @@ -30,7 +30,6 @@ #include "mtk_drm_ddp_comp.h" #include "mtk_drm_drv.h" #include "mtk_drm_fb.h" -#include "mtk_drm_gem.h" #define DRIVER_NAME "mediatek" #define DRIVER_DESC "Mediatek SoC DRM" @@ -282,7 +281,7 @@ static int mtk_drm_kms_init(struct drm_device *drm) goto err_component_unbind; } - private->dma_dev = &pdev->dev; + drm->dma_dev = &pdev->dev; /* * We don't use the drm_irq_install() helpers provided by the DRM @@ -320,7 +319,7 @@ static void mtk_drm_kms_deinit(struct drm_device *drm) .open = drm_open, .release = drm_release, .unlocked_ioctl = drm_ioctl, - .mmap = mtk_drm_gem_mmap, + .mmap = drm_gem_cma_mmap, .poll = drm_poll, .read = drm_read, .compat_ioctl = drm_compat_ioctl, @@ -330,17 +329,17 @@ static void mtk_drm_kms_deinit(struct drm_device *drm) .driver_features = DRIVER_MODESET | DRIVER_GEM | DRIVER_PRIME | DRIVER_ATOMIC, - .gem_free_object_unlocked = mtk_drm_gem_free_object, + .gem_free_object_unlocked = drm_gem_cma_free_object, .gem_vm_ops = &drm_gem_cma_vm_ops, - .dumb_create = mtk_drm_gem_dumb_create, + .dumb_create = drm_gem_cma_dumb_create_no_kmap, .prime_handle_to_fd = drm_gem_prime_handle_to_fd, .prime_fd_to_handle = drm_gem_prime_fd_to_handle, .gem_prime_export = drm_gem_prime_export, .gem_prime_import = drm_gem_prime_import, - .gem_prime_get_sg_table = mtk_gem_prime_get_sg_table, - .gem_prime_import_sg_table = mtk_gem_prime_import_sg_table, - .gem_prime_mmap = mtk_drm_gem_mmap_buf, + .gem_prime_get_sg_table = drm_gem_cma_prime_get_sg_table, + .gem_prime_import_sg_table = drm_gem_cma_prime_import_sg_table, + .gem_prime_mmap = drm_gem_cma_prime_mmap, .fops = &mtk_drm_fops, .name = DRIVER_NAME, diff --git a/drivers/gpu/drm/mediatek/mtk_drm_drv.h b/drivers/gpu/drm/mediatek/mtk_drm_drv.h index ecc00ca..cbbe63b 100644 --- a/drivers/gpu/drm/mediatek/mtk_drm_drv.h +++ b/drivers/gpu/drm/mediatek/mtk_drm_drv.h @@ -41,7 +41,6 @@ struct mtk_mmsys_driver_data { struct mtk_drm_private { struct drm_device *drm; - struct device *dma_dev; unsigned int num_pipes; diff --git a/drivers/gpu/drm/mediatek/mtk_drm_fb.c b/drivers/gpu/drm/mediatek/mtk_drm_fb.c index be5f6f1..45c22aa 100644 --- a/drivers/gpu/drm/mediatek/mtk_drm_fb.c +++ b/drivers/gpu/drm/mediatek/mtk_drm_fb.c @@ -21,7 +21,6 @@ #include "mtk_drm_drv.h" #include "mtk_drm_fb.h" -#include "mtk_drm_gem.h" static const struct drm_framebuffer_funcs mtk_drm_fb_funcs = { .create_handle = drm_gem_fb_create_handle, diff --git a/drivers/gpu/drm/mediatek/mtk_drm_gem.c b/drivers/gpu/drm/mediatek/mtk_drm_gem.c deleted file mode 100644 index 259b7b0..0000000 --- a/drivers/gpu/drm/mediatek/mtk_drm_gem.c +++ /dev/null @@ -1,243 +0,0 @@ -/* - * Copyright (c) 2015 MediaTek Inc. - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - */ - -#include <drm/drmP.h> -#include <drm/drm_gem.h> -#include <linux/dma-buf.h> - -#include "mtk_drm_drv.h" -#include "mtk_drm_gem.h" - -static struct mtk_drm_gem_obj *mtk_drm_gem_init(struct drm_device *dev, - unsigned long size) -{ - struct mtk_drm_gem_obj *mtk_gem_obj; - int ret; - - size = round_up(size, PAGE_SIZE); - - mtk_gem_obj = kzalloc(sizeof(*mtk_gem_obj), GFP_KERNEL); - if (!mtk_gem_obj) - return ERR_PTR(-ENOMEM); - - ret = drm_gem_object_init(dev, &mtk_gem_obj->base, size); - if (ret < 0) { - DRM_ERROR("failed to initialize gem object\n"); - kfree(mtk_gem_obj); - return ERR_PTR(ret); - } - - return mtk_gem_obj; -} - -struct mtk_drm_gem_obj *mtk_drm_gem_create(struct drm_device *dev, - size_t size, bool alloc_kmap) -{ - struct mtk_drm_private *priv = dev->dev_private; - struct mtk_drm_gem_obj *mtk_gem; - struct drm_gem_object *obj; - int ret; - - mtk_gem = mtk_drm_gem_init(dev, size); - if (IS_ERR(mtk_gem)) - return ERR_CAST(mtk_gem); - - obj = &mtk_gem->base; - - mtk_gem->dma_attrs = DMA_ATTR_WRITE_COMBINE; - - if (!alloc_kmap) - mtk_gem->dma_attrs |= DMA_ATTR_NO_KERNEL_MAPPING; - - mtk_gem->cookie = dma_alloc_attrs(priv->dma_dev, obj->size, - &mtk_gem->dma_addr, GFP_KERNEL, - mtk_gem->dma_attrs); - if (!mtk_gem->cookie) { - DRM_ERROR("failed to allocate %zx byte dma buffer", obj->size); - ret = -ENOMEM; - goto err_gem_free; - } - - if (alloc_kmap) - mtk_gem->kvaddr = mtk_gem->cookie; - - DRM_DEBUG_DRIVER("cookie = %p dma_addr = %pad size = %zu\n", - mtk_gem->cookie, &mtk_gem->dma_addr, - size); - - return mtk_gem; - -err_gem_free: - drm_gem_object_release(obj); - kfree(mtk_gem); - return ERR_PTR(ret); -} - -void mtk_drm_gem_free_object(struct drm_gem_object *obj) -{ - struct mtk_drm_gem_obj *mtk_gem = to_mtk_gem_obj(obj); - struct mtk_drm_private *priv = obj->dev->dev_private; - - if (mtk_gem->sg) - drm_prime_gem_destroy(obj, mtk_gem->sg); - else - dma_free_attrs(priv->dma_dev, obj->size, mtk_gem->cookie, - mtk_gem->dma_addr, mtk_gem->dma_attrs); - - /* release file pointer to gem object. */ - drm_gem_object_release(obj); - - kfree(mtk_gem); -} - -int mtk_drm_gem_dumb_create(struct drm_file *file_priv, struct drm_device *dev, - struct drm_mode_create_dumb *args) -{ - struct mtk_drm_gem_obj *mtk_gem; - int ret; - - args->pitch = DIV_ROUND_UP(args->width * args->bpp, 8); - args->size = args->pitch * args->height; - - mtk_gem = mtk_drm_gem_create(dev, args->size, false); - if (IS_ERR(mtk_gem)) - return PTR_ERR(mtk_gem); - - /* - * allocate a id of idr table where the obj is registered - * and handle has the id what user can see. - */ - ret = drm_gem_handle_create(file_priv, &mtk_gem->base, &args->handle); - if (ret) - goto err_handle_create; - - /* drop reference from allocate - handle holds it now. */ - drm_gem_object_put_unlocked(&mtk_gem->base); - - return 0; - -err_handle_create: - mtk_drm_gem_free_object(&mtk_gem->base); - return ret; -} - -static int mtk_drm_gem_object_mmap(struct drm_gem_object *obj, - struct vm_area_struct *vma) - -{ - int ret; - struct mtk_drm_gem_obj *mtk_gem = to_mtk_gem_obj(obj); - struct mtk_drm_private *priv = obj->dev->dev_private; - - /* - * dma_alloc_attrs() allocated a struct page table for mtk_gem, so clear - * VM_PFNMAP flag that was set by drm_gem_mmap_obj()/drm_gem_mmap(). - */ - vma->vm_flags &= ~VM_PFNMAP; - vma->vm_pgoff = 0; - - ret = dma_mmap_attrs(priv->dma_dev, vma, mtk_gem->cookie, - mtk_gem->dma_addr, obj->size, mtk_gem->dma_attrs); - if (ret) - drm_gem_vm_close(vma); - - return ret; -} - -int mtk_drm_gem_mmap_buf(struct drm_gem_object *obj, struct vm_area_struct *vma) -{ - int ret; - - ret = drm_gem_mmap_obj(obj, obj->size, vma); - if (ret) - return ret; - - return mtk_drm_gem_object_mmap(obj, vma); -} - -int mtk_drm_gem_mmap(struct file *filp, struct vm_area_struct *vma) -{ - struct drm_gem_object *obj; - int ret; - - ret = drm_gem_mmap(filp, vma); - if (ret) - return ret; - - obj = vma->vm_private_data; - - return mtk_drm_gem_object_mmap(obj, vma); -} - -/* - * Allocate a sg_table for this GEM object. - * Note: Both the table's contents, and the sg_table itself must be freed by - * the caller. - * Returns a pointer to the newly allocated sg_table, or an ERR_PTR() error. - */ -struct sg_table *mtk_gem_prime_get_sg_table(struct drm_gem_object *obj) -{ - struct mtk_drm_gem_obj *mtk_gem = to_mtk_gem_obj(obj); - struct mtk_drm_private *priv = obj->dev->dev_private; - struct sg_table *sgt; - int ret; - - sgt = kzalloc(sizeof(*sgt), GFP_KERNEL); - if (!sgt) - return ERR_PTR(-ENOMEM); - - ret = dma_get_sgtable_attrs(priv->dma_dev, sgt, mtk_gem->cookie, - mtk_gem->dma_addr, obj->size, - mtk_gem->dma_attrs); - if (ret) { - DRM_ERROR("failed to allocate sgt, %d\n", ret); - kfree(sgt); - return ERR_PTR(ret); - } - - return sgt; -} - -struct drm_gem_object *mtk_gem_prime_import_sg_table(struct drm_device *dev, - struct dma_buf_attachment *attach, struct sg_table *sg) -{ - struct mtk_drm_gem_obj *mtk_gem; - int ret; - struct scatterlist *s; - unsigned int i; - dma_addr_t expected; - - mtk_gem = mtk_drm_gem_init(dev, attach->dmabuf->size); - - if (IS_ERR(mtk_gem)) - return ERR_CAST(mtk_gem); - - expected = sg_dma_address(sg->sgl); - for_each_sg(sg->sgl, s, sg->nents, i) { - if (sg_dma_address(s) != expected) { - DRM_ERROR("sg_table is not contiguous"); - ret = -EINVAL; - goto err_gem_free; - } - expected = sg_dma_address(s) + sg_dma_len(s); - } - - mtk_gem->dma_addr = sg_dma_address(sg->sgl); - mtk_gem->sg = sg; - - return &mtk_gem->base; - -err_gem_free: - kfree(mtk_gem); - return ERR_PTR(ret); -} diff --git a/drivers/gpu/drm/mediatek/mtk_drm_gem.h b/drivers/gpu/drm/mediatek/mtk_drm_gem.h deleted file mode 100644 index 534639b..0000000 --- a/drivers/gpu/drm/mediatek/mtk_drm_gem.h +++ /dev/null @@ -1,56 +0,0 @@ -/* - * Copyright (c) 2015 MediaTek Inc. - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - */ - -#ifndef _MTK_DRM_GEM_H_ -#define _MTK_DRM_GEM_H_ - -#include <drm/drm_gem.h> - -/* - * mtk drm buffer structure. - * - * @base: a gem object. - * - a new handle to this gem object would be created - * by drm_gem_handle_create(). - * @cookie: the return value of dma_alloc_attrs(), keep it for dma_free_attrs() - * @kvaddr: kernel virtual address of gem buffer. - * @dma_addr: dma address of gem buffer. - * @dma_attrs: dma attributes of gem buffer. - * - * P.S. this object would be transferred to user as kms_bo.handle so - * user can access the buffer through kms_bo.handle. - */ -struct mtk_drm_gem_obj { - struct drm_gem_object base; - void *cookie; - void *kvaddr; - dma_addr_t dma_addr; - unsigned long dma_attrs; - struct sg_table *sg; -}; - -#define to_mtk_gem_obj(x) container_of(x, struct mtk_drm_gem_obj, base) - -void mtk_drm_gem_free_object(struct drm_gem_object *gem); -struct mtk_drm_gem_obj *mtk_drm_gem_create(struct drm_device *dev, size_t size, - bool alloc_kmap); -int mtk_drm_gem_dumb_create(struct drm_file *file_priv, struct drm_device *dev, - struct drm_mode_create_dumb *args); -int mtk_drm_gem_mmap(struct file *filp, struct vm_area_struct *vma); -int mtk_drm_gem_mmap_buf(struct drm_gem_object *obj, - struct vm_area_struct *vma); -struct sg_table *mtk_gem_prime_get_sg_table(struct drm_gem_object *obj); -struct drm_gem_object *mtk_gem_prime_import_sg_table(struct drm_device *dev, - struct dma_buf_attachment *attach, struct sg_table *sg); - -#endif diff --git a/drivers/gpu/drm/mediatek/mtk_drm_plane.c b/drivers/gpu/drm/mediatek/mtk_drm_plane.c index f7e6aa1..62de9d5 100644 --- a/drivers/gpu/drm/mediatek/mtk_drm_plane.c +++ b/drivers/gpu/drm/mediatek/mtk_drm_plane.c @@ -15,13 +15,13 @@ #include <drm/drmP.h> #include <drm/drm_atomic.h> #include <drm/drm_atomic_helper.h> +#include <drm/drm_gem_cma_helper.h> #include <drm/drm_plane_helper.h> #include "mtk_drm_crtc.h" #include "mtk_drm_ddp_comp.h" #include "mtk_drm_drv.h" #include "mtk_drm_fb.h" -#include "mtk_drm_gem.h" #include "mtk_drm_plane.h" static const u32 formats[] = { @@ -115,7 +115,7 @@ static void mtk_plane_atomic_update(struct drm_plane *plane, struct drm_crtc *crtc = plane->state->crtc; struct drm_framebuffer *fb = plane->state->fb; struct drm_gem_object *gem; - struct mtk_drm_gem_obj *mtk_gem; + struct drm_gem_cma_object *cma_obj; unsigned int pitch, format; dma_addr_t addr; @@ -123,8 +123,8 @@ static void mtk_plane_atomic_update(struct drm_plane *plane, return; gem = fb->obj[0]; - mtk_gem = to_mtk_gem_obj(gem); - addr = mtk_gem->dma_addr; + cma_obj = to_drm_gem_cma_obj(gem); + addr = cma_obj->paddr; pitch = fb->pitches[0]; format = fb->format->format; -- 1.9.1 _______________________________________________ dri-devel mailing list [email protected] https://lists.freedesktop.org/mailman/listinfo/dri-devel
