Do not need to maintain our own shmem memory management code as drm_gem_shmem_helpers provides it. And we can also benifit from the work of others with shared code.
This is also a preparation for implementing buffer madv.
Signed-off-by: Qiang Yu yuq825@gmail.com --- drivers/gpu/drm/lima/Kconfig | 1 + drivers/gpu/drm/lima/Makefile | 4 +- drivers/gpu/drm/lima/lima_drv.c | 22 +--- drivers/gpu/drm/lima/lima_gem.c | 141 +++++++++++++------------- drivers/gpu/drm/lima/lima_gem.h | 32 ++++-- drivers/gpu/drm/lima/lima_gem_prime.c | 46 --------- drivers/gpu/drm/lima/lima_gem_prime.h | 13 --- drivers/gpu/drm/lima/lima_mmu.c | 1 - drivers/gpu/drm/lima/lima_object.c | 119 ---------------------- drivers/gpu/drm/lima/lima_object.h | 35 ------- drivers/gpu/drm/lima/lima_sched.c | 6 +- drivers/gpu/drm/lima/lima_vm.c | 85 ++++++++-------- 12 files changed, 145 insertions(+), 360 deletions(-) delete mode 100644 drivers/gpu/drm/lima/lima_gem_prime.c delete mode 100644 drivers/gpu/drm/lima/lima_gem_prime.h delete mode 100644 drivers/gpu/drm/lima/lima_object.c delete mode 100644 drivers/gpu/drm/lima/lima_object.h
diff --git a/drivers/gpu/drm/lima/Kconfig b/drivers/gpu/drm/lima/Kconfig index bb4ddc6bb0a6..571dc369a7e9 100644 --- a/drivers/gpu/drm/lima/Kconfig +++ b/drivers/gpu/drm/lima/Kconfig @@ -9,5 +9,6 @@ config DRM_LIMA depends on COMMON_CLK depends on OF select DRM_SCHED + select DRM_GEM_SHMEM_HELPER help DRM driver for ARM Mali 400/450 GPUs. diff --git a/drivers/gpu/drm/lima/Makefile b/drivers/gpu/drm/lima/Makefile index 38cc70281ba5..a85444b0a1d4 100644 --- a/drivers/gpu/drm/lima/Makefile +++ b/drivers/gpu/drm/lima/Makefile @@ -13,9 +13,7 @@ lima-y := \ lima_vm.o \ lima_sched.o \ lima_ctx.o \ - lima_gem_prime.o \ lima_dlbu.o \ - lima_bcast.o \ - lima_object.o + lima_bcast.o
obj-$(CONFIG_DRM_LIMA) += lima.o diff --git a/drivers/gpu/drm/lima/lima_drv.c b/drivers/gpu/drm/lima/lima_drv.c index cc850a522fac..5d551bfdb60b 100644 --- a/drivers/gpu/drm/lima/lima_drv.c +++ b/drivers/gpu/drm/lima/lima_drv.c @@ -12,7 +12,6 @@
#include "lima_drv.h" #include "lima_gem.h" -#include "lima_gem_prime.h" #include "lima_vm.h"
int lima_sched_timeout_ms; @@ -241,16 +240,7 @@ static const struct drm_ioctl_desc lima_drm_driver_ioctls[] = { DRM_IOCTL_DEF_DRV(LIMA_CTX_FREE, lima_ioctl_ctx_free, DRM_RENDER_ALLOW), };
-static const struct file_operations lima_drm_driver_fops = { - .owner = THIS_MODULE, - .open = drm_open, - .release = drm_release, - .unlocked_ioctl = drm_ioctl, -#ifdef CONFIG_COMPAT - .compat_ioctl = drm_compat_ioctl, -#endif - .mmap = lima_gem_mmap, -}; +DEFINE_DRM_GEM_SHMEM_FOPS(lima_drm_driver_fops);
static struct drm_driver lima_drm_driver = { .driver_features = DRIVER_RENDER | DRIVER_GEM | DRIVER_SYNCOBJ, @@ -259,10 +249,6 @@ static struct drm_driver lima_drm_driver = { .ioctls = lima_drm_driver_ioctls, .num_ioctls = ARRAY_SIZE(lima_drm_driver_ioctls), .fops = &lima_drm_driver_fops, - .gem_free_object_unlocked = lima_gem_free_object, - .gem_open_object = lima_gem_object_open, - .gem_close_object = lima_gem_object_close, - .gem_vm_ops = &lima_gem_vm_ops, .name = "lima", .desc = "lima DRM", .date = "20190217", @@ -270,11 +256,11 @@ static struct drm_driver lima_drm_driver = { .minor = 0, .patchlevel = 0,
+ .gem_create_object = lima_gem_create_object, .prime_fd_to_handle = drm_gem_prime_fd_to_handle, - .gem_prime_import_sg_table = lima_gem_prime_import_sg_table, + .gem_prime_import_sg_table = drm_gem_shmem_prime_import_sg_table, .prime_handle_to_fd = drm_gem_prime_handle_to_fd, - .gem_prime_get_sg_table = lima_gem_prime_get_sg_table, - .gem_prime_mmap = lima_gem_prime_mmap, + .gem_prime_mmap = drm_gem_prime_mmap, };
static int lima_pdev_probe(struct platform_device *pdev) diff --git a/drivers/gpu/drm/lima/lima_gem.c b/drivers/gpu/drm/lima/lima_gem.c index f5aeaa1f61c8..eb70e4429588 100644 --- a/drivers/gpu/drm/lima/lima_gem.c +++ b/drivers/gpu/drm/lima/lima_gem.c @@ -3,7 +3,7 @@
#include <linux/mm.h> #include <linux/sync_file.h> -#include <linux/pfn_t.h> +#include <linux/pagemap.h>
#include <drm/drm_file.h> #include <drm/drm_syncobj.h> @@ -13,40 +13,55 @@
#include "lima_drv.h" #include "lima_gem.h" -#include "lima_gem_prime.h" #include "lima_vm.h" -#include "lima_object.h"
int lima_gem_create_handle(struct drm_device *dev, struct drm_file *file, u32 size, u32 flags, u32 *handle) { int err; - struct lima_bo *bo; - struct lima_device *ldev = to_lima_dev(dev); + gfp_t mask; + struct drm_gem_shmem_object *shmem; + struct drm_gem_object *obj; + struct sg_table *sgt; + + shmem = drm_gem_shmem_create(dev, size); + if (IS_ERR(shmem)) + return PTR_ERR(shmem);
- bo = lima_bo_create(ldev, size, flags, NULL); - if (IS_ERR(bo)) - return PTR_ERR(bo); + obj = &shmem->base;
- err = drm_gem_handle_create(file, &bo->gem, handle); + /* Mali Utgard GPU can only support 32bit address space */ + mask = mapping_gfp_mask(obj->filp->f_mapping); + mask &= ~__GFP_HIGHMEM; + mask |= __GFP_DMA32; + mapping_set_gfp_mask(obj->filp->f_mapping, mask); + + sgt = drm_gem_shmem_get_pages_sgt(obj); + if (IS_ERR(sgt)) { + err = PTR_ERR(sgt); + goto out; + }
+ err = drm_gem_handle_create(file, obj, handle); + +out: /* drop reference from allocate - handle holds it now */ - drm_gem_object_put_unlocked(&bo->gem); + drm_gem_object_put_unlocked(obj);
return err; }
-void lima_gem_free_object(struct drm_gem_object *obj) +static void lima_gem_free_object(struct drm_gem_object *obj) { struct lima_bo *bo = to_lima_bo(obj);
if (!list_empty(&bo->va)) dev_err(obj->dev->dev, "lima gem free bo still has va\n");
- lima_bo_destroy(bo); + drm_gem_shmem_free_object(obj); }
-int lima_gem_object_open(struct drm_gem_object *obj, struct drm_file *file) +static int lima_gem_object_open(struct drm_gem_object *obj, struct drm_file *file) { struct lima_bo *bo = to_lima_bo(obj); struct lima_drm_priv *priv = to_lima_drm_priv(file); @@ -55,7 +70,7 @@ int lima_gem_object_open(struct drm_gem_object *obj, struct drm_file *file) return lima_vm_bo_add(vm, bo, true); }
-void lima_gem_object_close(struct drm_gem_object *obj, struct drm_file *file) +static void lima_gem_object_close(struct drm_gem_object *obj, struct drm_file *file) { struct lima_bo *bo = to_lima_bo(obj); struct lima_drm_priv *priv = to_lima_drm_priv(file); @@ -64,13 +79,41 @@ void lima_gem_object_close(struct drm_gem_object *obj, struct drm_file *file) lima_vm_bo_del(vm, bo); }
+static const struct drm_gem_object_funcs lima_gem_funcs = { + .free = lima_gem_free_object, + .open = lima_gem_object_open, + .close = lima_gem_object_close, + .print_info = drm_gem_shmem_print_info, + .pin = drm_gem_shmem_pin, + .unpin = drm_gem_shmem_unpin, + .get_sg_table = drm_gem_shmem_get_sg_table, + .vmap = drm_gem_shmem_vmap, + .vunmap = drm_gem_shmem_vunmap, + .vm_ops = &drm_gem_shmem_vm_ops, +}; + +struct drm_gem_object *lima_gem_create_object(struct drm_device *dev, size_t size) +{ + struct lima_bo *bo; + + bo = kzalloc(sizeof(*bo), GFP_KERNEL); + if (!bo) + return NULL; + + mutex_init(&bo->lock); + INIT_LIST_HEAD(&bo->va); + + bo->base.base.funcs = &lima_gem_funcs; + + return &bo->base.base; +} + int lima_gem_get_info(struct drm_file *file, u32 handle, u32 *va, u64 *offset) { struct drm_gem_object *obj; struct lima_bo *bo; struct lima_drm_priv *priv = to_lima_drm_priv(file); struct lima_vm *vm = priv->vm; - int err;
obj = drm_gem_object_lookup(file, handle); if (!obj) @@ -80,53 +123,9 @@ int lima_gem_get_info(struct drm_file *file, u32 handle, u32 *va, u64 *offset)
*va = lima_vm_get_va(vm, bo);
- err = drm_gem_create_mmap_offset(obj); - if (!err) - *offset = drm_vma_node_offset_addr(&obj->vma_node); + *offset = drm_vma_node_offset_addr(&obj->vma_node);
drm_gem_object_put_unlocked(obj); - return err; -} - -static vm_fault_t lima_gem_fault(struct vm_fault *vmf) -{ - struct vm_area_struct *vma = vmf->vma; - struct drm_gem_object *obj = vma->vm_private_data; - struct lima_bo *bo = to_lima_bo(obj); - pfn_t pfn; - pgoff_t pgoff; - - /* We don't use vmf->pgoff since that has the fake offset: */ - pgoff = (vmf->address - vma->vm_start) >> PAGE_SHIFT; - pfn = __pfn_to_pfn_t(page_to_pfn(bo->pages[pgoff]), PFN_DEV); - - return vmf_insert_mixed(vma, vmf->address, pfn); -} - -const struct vm_operations_struct lima_gem_vm_ops = { - .fault = lima_gem_fault, - .open = drm_gem_vm_open, - .close = drm_gem_vm_close, -}; - -void lima_set_vma_flags(struct vm_area_struct *vma) -{ - pgprot_t prot = vm_get_page_prot(vma->vm_flags); - - vma->vm_flags |= VM_MIXEDMAP; - vma->vm_flags &= ~VM_PFNMAP; - vma->vm_page_prot = pgprot_writecombine(prot); -} - -int lima_gem_mmap(struct file *filp, struct vm_area_struct *vma) -{ - int ret; - - ret = drm_gem_mmap(filp, vma); - if (ret) - return ret; - - lima_set_vma_flags(vma); return 0; }
@@ -155,7 +154,7 @@ static int lima_gem_sync_bo(struct lima_sched_task *task, struct lima_bo *bo, int err = 0;
if (!write) { - err = dma_resv_reserve_shared(bo->gem.resv, 1); + err = dma_resv_reserve_shared(lima_bo_resv(bo), 1); if (err) return err; } @@ -164,7 +163,7 @@ static int lima_gem_sync_bo(struct lima_sched_task *task, struct lima_bo *bo, if (explicit) return 0;
- return drm_gem_fence_array_add_implicit(&task->deps, &bo->gem, write); + return drm_gem_fence_array_add_implicit(&task->deps, &bo->base.base, write); }
static int lima_gem_lock_bos(struct lima_bo **bos, u32 nr_bos, @@ -181,7 +180,7 @@ static int lima_gem_lock_bos(struct lima_bo **bos, u32 nr_bos, continue; }
- ret = ww_mutex_lock_interruptible(&bos[i]->gem.resv->lock, ctx); + ret = ww_mutex_lock_interruptible(&lima_bo_resv(bos[i])->lock, ctx); if (ret < 0) { contended = i; goto err; @@ -193,15 +192,15 @@ static int lima_gem_lock_bos(struct lima_bo **bos, u32 nr_bos,
err: for (i--; i >= 0; i--) - ww_mutex_unlock(&bos[i]->gem.resv->lock); + ww_mutex_unlock(&lima_bo_resv(bos[i])->lock);
if (slow_locked >= 0) - ww_mutex_unlock(&bos[slow_locked]->gem.resv->lock); + ww_mutex_unlock(&lima_bo_resv(bos[slow_locked])->lock);
if (ret == -EDEADLK) { /* we lost out in a seqno race, lock and retry.. */ ret = ww_mutex_lock_slow_interruptible( - &bos[contended]->gem.resv->lock, ctx); + &lima_bo_resv(bos[contended])->lock, ctx); if (!ret) { slow_locked = contended; goto retry; @@ -218,7 +217,7 @@ static void lima_gem_unlock_bos(struct lima_bo **bos, u32 nr_bos, int i;
for (i = 0; i < nr_bos; i++) - ww_mutex_unlock(&bos[i]->gem.resv->lock); + ww_mutex_unlock(&lima_bo_resv(bos[i])->lock); ww_acquire_fini(ctx); }
@@ -309,15 +308,15 @@ int lima_gem_submit(struct drm_file *file, struct lima_submit *submit)
for (i = 0; i < submit->nr_bos; i++) { if (submit->bos[i].flags & LIMA_SUBMIT_BO_WRITE) - dma_resv_add_excl_fence(bos[i]->gem.resv, fence); + dma_resv_add_excl_fence(lima_bo_resv(bos[i]), fence); else - dma_resv_add_shared_fence(bos[i]->gem.resv, fence); + dma_resv_add_shared_fence(lima_bo_resv(bos[i]), fence); }
lima_gem_unlock_bos(bos, submit->nr_bos, &ctx);
for (i = 0; i < submit->nr_bos; i++) - drm_gem_object_put_unlocked(&bos[i]->gem); + drm_gem_object_put_unlocked(&bos[i]->base.base);
if (out_sync) { drm_syncobj_replace_fence(out_sync, fence); @@ -337,7 +336,7 @@ int lima_gem_submit(struct drm_file *file, struct lima_submit *submit) lima_vm_bo_del(vm, bos[i]); err_out1: for (i = 0; i < submit->nr_bos; i++) - drm_gem_object_put_unlocked(&bos[i]->gem); + drm_gem_object_put_unlocked(&bos[i]->base.base); err_out0: if (out_sync) drm_syncobj_put(out_sync); diff --git a/drivers/gpu/drm/lima/lima_gem.h b/drivers/gpu/drm/lima/lima_gem.h index 556111a01135..1800feb3e47f 100644 --- a/drivers/gpu/drm/lima/lima_gem.h +++ b/drivers/gpu/drm/lima/lima_gem.h @@ -4,19 +4,37 @@ #ifndef __LIMA_GEM_H__ #define __LIMA_GEM_H__
-struct lima_bo; +#include <drm/drm_gem_shmem_helper.h> + struct lima_submit;
-extern const struct vm_operations_struct lima_gem_vm_ops; +struct lima_bo { + struct drm_gem_shmem_object base; + + struct mutex lock; + struct list_head va; +}; + +static inline struct lima_bo * +to_lima_bo(struct drm_gem_object *obj) +{ + return container_of(to_drm_gem_shmem_obj(obj), struct lima_bo, base); +} + +static inline size_t lima_bo_size(struct lima_bo *bo) +{ + return bo->base.base.size; +} + +static inline struct dma_resv *lima_bo_resv(struct lima_bo *bo) +{ + return bo->base.base.resv; +}
-struct lima_bo *lima_gem_create_bo(struct drm_device *dev, u32 size, u32 flags); +struct drm_gem_object *lima_gem_create_object(struct drm_device *dev, size_t size); int lima_gem_create_handle(struct drm_device *dev, struct drm_file *file, u32 size, u32 flags, u32 *handle); -void lima_gem_free_object(struct drm_gem_object *obj); -int lima_gem_object_open(struct drm_gem_object *obj, struct drm_file *file); -void lima_gem_object_close(struct drm_gem_object *obj, struct drm_file *file); int lima_gem_get_info(struct drm_file *file, u32 handle, u32 *va, u64 *offset); -int lima_gem_mmap(struct file *filp, struct vm_area_struct *vma); int lima_gem_submit(struct drm_file *file, struct lima_submit *submit); int lima_gem_wait(struct drm_file *file, u32 handle, u32 op, s64 timeout_ns);
diff --git a/drivers/gpu/drm/lima/lima_gem_prime.c b/drivers/gpu/drm/lima/lima_gem_prime.c deleted file mode 100644 index e3eb251e0a12..000000000000 --- a/drivers/gpu/drm/lima/lima_gem_prime.c +++ /dev/null @@ -1,46 +0,0 @@ -// SPDX-License-Identifier: GPL-2.0 OR MIT -/* Copyright 2018-2019 Qiang Yu yuq825@gmail.com */ - -#include <linux/dma-buf.h> -#include <drm/drm_prime.h> -#include <drm/drm_drv.h> -#include <drm/drm_file.h> - -#include "lima_device.h" -#include "lima_object.h" -#include "lima_gem.h" -#include "lima_gem_prime.h" - -struct drm_gem_object *lima_gem_prime_import_sg_table( - struct drm_device *dev, struct dma_buf_attachment *attach, - struct sg_table *sgt) -{ - struct lima_device *ldev = to_lima_dev(dev); - struct lima_bo *bo; - - bo = lima_bo_create(ldev, attach->dmabuf->size, 0, sgt); - if (IS_ERR(bo)) - return ERR_CAST(bo); - - return &bo->gem; -} - -struct sg_table *lima_gem_prime_get_sg_table(struct drm_gem_object *obj) -{ - struct lima_bo *bo = to_lima_bo(obj); - int npages = obj->size >> PAGE_SHIFT; - - return drm_prime_pages_to_sg(bo->pages, npages); -} - -int lima_gem_prime_mmap(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; - - lima_set_vma_flags(vma); - return 0; -} diff --git a/drivers/gpu/drm/lima/lima_gem_prime.h b/drivers/gpu/drm/lima/lima_gem_prime.h deleted file mode 100644 index 34b4d35c21e3..000000000000 --- a/drivers/gpu/drm/lima/lima_gem_prime.h +++ /dev/null @@ -1,13 +0,0 @@ -/* SPDX-License-Identifier: GPL-2.0 OR MIT */ -/* Copyright 2018-2019 Qiang Yu yuq825@gmail.com */ - -#ifndef __LIMA_GEM_PRIME_H__ -#define __LIMA_GEM_PRIME_H__ - -struct drm_gem_object *lima_gem_prime_import_sg_table( - struct drm_device *dev, struct dma_buf_attachment *attach, - struct sg_table *sgt); -struct sg_table *lima_gem_prime_get_sg_table(struct drm_gem_object *obj); -int lima_gem_prime_mmap(struct drm_gem_object *obj, struct vm_area_struct *vma); - -#endif diff --git a/drivers/gpu/drm/lima/lima_mmu.c b/drivers/gpu/drm/lima/lima_mmu.c index 8e1651d6a61f..97ec09dee572 100644 --- a/drivers/gpu/drm/lima/lima_mmu.c +++ b/drivers/gpu/drm/lima/lima_mmu.c @@ -8,7 +8,6 @@ #include "lima_device.h" #include "lima_mmu.h" #include "lima_vm.h" -#include "lima_object.h" #include "lima_regs.h"
#define mmu_write(reg, data) writel(data, ip->iomem + reg) diff --git a/drivers/gpu/drm/lima/lima_object.c b/drivers/gpu/drm/lima/lima_object.c deleted file mode 100644 index 87123b1d083c..000000000000 --- a/drivers/gpu/drm/lima/lima_object.c +++ /dev/null @@ -1,119 +0,0 @@ -// SPDX-License-Identifier: GPL-2.0 OR MIT -/* Copyright 2018-2019 Qiang Yu yuq825@gmail.com */ - -#include <drm/drm_prime.h> -#include <linux/pagemap.h> -#include <linux/dma-mapping.h> - -#include "lima_object.h" - -void lima_bo_destroy(struct lima_bo *bo) -{ - if (bo->sgt) { - kfree(bo->pages); - drm_prime_gem_destroy(&bo->gem, bo->sgt); - } else { - if (bo->pages_dma_addr) { - int i, npages = bo->gem.size >> PAGE_SHIFT; - - for (i = 0; i < npages; i++) { - if (bo->pages_dma_addr[i]) - dma_unmap_page(bo->gem.dev->dev, - bo->pages_dma_addr[i], - PAGE_SIZE, DMA_BIDIRECTIONAL); - } - } - - if (bo->pages) - drm_gem_put_pages(&bo->gem, bo->pages, true, true); - } - - kfree(bo->pages_dma_addr); - drm_gem_object_release(&bo->gem); - kfree(bo); -} - -static struct lima_bo *lima_bo_create_struct(struct lima_device *dev, u32 size, u32 flags) -{ - struct lima_bo *bo; - int err; - - size = PAGE_ALIGN(size); - - bo = kzalloc(sizeof(*bo), GFP_KERNEL); - if (!bo) - return ERR_PTR(-ENOMEM); - - mutex_init(&bo->lock); - INIT_LIST_HEAD(&bo->va); - - err = drm_gem_object_init(dev->ddev, &bo->gem, size); - if (err) { - kfree(bo); - return ERR_PTR(err); - } - - return bo; -} - -struct lima_bo *lima_bo_create(struct lima_device *dev, u32 size, - u32 flags, struct sg_table *sgt) -{ - int i, err; - size_t npages; - struct lima_bo *bo, *ret; - - bo = lima_bo_create_struct(dev, size, flags); - if (IS_ERR(bo)) - return bo; - - npages = bo->gem.size >> PAGE_SHIFT; - - bo->pages_dma_addr = kcalloc(npages, sizeof(dma_addr_t), GFP_KERNEL); - if (!bo->pages_dma_addr) { - ret = ERR_PTR(-ENOMEM); - goto err_out; - } - - if (sgt) { - bo->sgt = sgt; - - bo->pages = kcalloc(npages, sizeof(*bo->pages), GFP_KERNEL); - if (!bo->pages) { - ret = ERR_PTR(-ENOMEM); - goto err_out; - } - - err = drm_prime_sg_to_page_addr_arrays( - sgt, bo->pages, bo->pages_dma_addr, npages); - if (err) { - ret = ERR_PTR(err); - goto err_out; - } - } else { - mapping_set_gfp_mask(bo->gem.filp->f_mapping, GFP_DMA32); - bo->pages = drm_gem_get_pages(&bo->gem); - if (IS_ERR(bo->pages)) { - ret = ERR_CAST(bo->pages); - bo->pages = NULL; - goto err_out; - } - - for (i = 0; i < npages; i++) { - dma_addr_t addr = dma_map_page(dev->dev, bo->pages[i], 0, - PAGE_SIZE, DMA_BIDIRECTIONAL); - if (dma_mapping_error(dev->dev, addr)) { - ret = ERR_PTR(-EFAULT); - goto err_out; - } - bo->pages_dma_addr[i] = addr; - } - - } - - return bo; - -err_out: - lima_bo_destroy(bo); - return ret; -} diff --git a/drivers/gpu/drm/lima/lima_object.h b/drivers/gpu/drm/lima/lima_object.h deleted file mode 100644 index 31ca2d8dc0a1..000000000000 --- a/drivers/gpu/drm/lima/lima_object.h +++ /dev/null @@ -1,35 +0,0 @@ -/* SPDX-License-Identifier: GPL-2.0 OR MIT */ -/* Copyright 2018-2019 Qiang Yu yuq825@gmail.com */ - -#ifndef __LIMA_OBJECT_H__ -#define __LIMA_OBJECT_H__ - -#include <drm/drm_gem.h> - -#include "lima_device.h" - -struct lima_bo { - struct drm_gem_object gem; - - struct page **pages; - dma_addr_t *pages_dma_addr; - struct sg_table *sgt; - void *vaddr; - - struct mutex lock; - struct list_head va; -}; - -static inline struct lima_bo * -to_lima_bo(struct drm_gem_object *obj) -{ - return container_of(obj, struct lima_bo, gem); -} - -struct lima_bo *lima_bo_create(struct lima_device *dev, u32 size, - u32 flags, struct sg_table *sgt); -void lima_bo_destroy(struct lima_bo *bo); -void *lima_bo_vmap(struct lima_bo *bo); -void lima_bo_vunmap(struct lima_bo *bo); - -#endif diff --git a/drivers/gpu/drm/lima/lima_sched.c b/drivers/gpu/drm/lima/lima_sched.c index 4127cacac454..f522c5f99729 100644 --- a/drivers/gpu/drm/lima/lima_sched.c +++ b/drivers/gpu/drm/lima/lima_sched.c @@ -10,7 +10,7 @@ #include "lima_vm.h" #include "lima_mmu.h" #include "lima_l2_cache.h" -#include "lima_object.h" +#include "lima_gem.h"
struct lima_fence { struct dma_fence base; @@ -117,7 +117,7 @@ int lima_sched_task_init(struct lima_sched_task *task, return -ENOMEM;
for (i = 0; i < num_bos; i++) - drm_gem_object_get(&bos[i]->gem); + drm_gem_object_get(&bos[i]->base.base);
err = drm_sched_job_init(&task->base, &context->base, vm); if (err) { @@ -148,7 +148,7 @@ void lima_sched_task_fini(struct lima_sched_task *task)
if (task->bos) { for (i = 0; i < task->num_bos; i++) - drm_gem_object_put_unlocked(&task->bos[i]->gem); + drm_gem_object_put_unlocked(&task->bos[i]->base.base); kfree(task->bos); }
diff --git a/drivers/gpu/drm/lima/lima_vm.c b/drivers/gpu/drm/lima/lima_vm.c index 19e88ca16527..8e69c4540e8b 100644 --- a/drivers/gpu/drm/lima/lima_vm.c +++ b/drivers/gpu/drm/lima/lima_vm.c @@ -6,7 +6,7 @@
#include "lima_device.h" #include "lima_vm.h" -#include "lima_object.h" +#include "lima_gem.h" #include "lima_regs.h"
struct lima_bo_va { @@ -32,7 +32,7 @@ struct lima_bo_va { #define LIMA_BTE(va) ((va & LIMA_VM_BT_MASK) >> LIMA_VM_BT_SHIFT)
-static void lima_vm_unmap_page_table(struct lima_vm *vm, u32 start, u32 end) +static void lima_vm_unmap_range(struct lima_vm *vm, u32 start, u32 end) { u32 addr;
@@ -44,41 +44,32 @@ static void lima_vm_unmap_page_table(struct lima_vm *vm, u32 start, u32 end) } }
-static int lima_vm_map_page_table(struct lima_vm *vm, dma_addr_t *dma, - u32 start, u32 end) +static int lima_vm_map_page(struct lima_vm *vm, dma_addr_t pa, u32 va) { - u64 addr; - int i = 0; - - for (addr = start; addr <= end; addr += LIMA_PAGE_SIZE) { - u32 pbe = LIMA_PBE(addr); - u32 bte = LIMA_BTE(addr); - - if (!vm->bts[pbe].cpu) { - dma_addr_t pts; - u32 *pd; - int j; - - vm->bts[pbe].cpu = dma_alloc_wc( - vm->dev->dev, LIMA_PAGE_SIZE << LIMA_VM_NUM_PT_PER_BT_SHIFT, - &vm->bts[pbe].dma, GFP_KERNEL | __GFP_ZERO); - if (!vm->bts[pbe].cpu) { - if (addr != start) - lima_vm_unmap_page_table(vm, start, addr - 1); - return -ENOMEM; - } - - pts = vm->bts[pbe].dma; - pd = vm->pd.cpu + (pbe << LIMA_VM_NUM_PT_PER_BT_SHIFT); - for (j = 0; j < LIMA_VM_NUM_PT_PER_BT; j++) { - pd[j] = pts | LIMA_VM_FLAG_PRESENT; - pts += LIMA_PAGE_SIZE; - } + u32 pbe = LIMA_PBE(va); + u32 bte = LIMA_BTE(va); + + if (!vm->bts[pbe].cpu) { + dma_addr_t pts; + u32 *pd; + int j; + + vm->bts[pbe].cpu = dma_alloc_wc( + vm->dev->dev, LIMA_PAGE_SIZE << LIMA_VM_NUM_PT_PER_BT_SHIFT, + &vm->bts[pbe].dma, GFP_KERNEL | __GFP_ZERO); + if (!vm->bts[pbe].cpu) + return -ENOMEM; + + pts = vm->bts[pbe].dma; + pd = vm->pd.cpu + (pbe << LIMA_VM_NUM_PT_PER_BT_SHIFT); + for (j = 0; j < LIMA_VM_NUM_PT_PER_BT; j++) { + pd[j] = pts | LIMA_VM_FLAG_PRESENT; + pts += LIMA_PAGE_SIZE; } - - vm->bts[pbe].cpu[bte] = dma[i++] | LIMA_VM_FLAGS_CACHE; }
+ vm->bts[pbe].cpu[bte] = pa | LIMA_VM_FLAGS_CACHE; + return 0; }
@@ -100,7 +91,8 @@ lima_vm_bo_find(struct lima_vm *vm, struct lima_bo *bo) int lima_vm_bo_add(struct lima_vm *vm, struct lima_bo *bo, bool create) { struct lima_bo_va *bo_va; - int err; + struct sg_dma_page_iter sg_iter; + int offset = 0, err;
mutex_lock(&bo->lock);
@@ -128,14 +120,18 @@ int lima_vm_bo_add(struct lima_vm *vm, struct lima_bo *bo, bool create)
mutex_lock(&vm->lock);
- err = drm_mm_insert_node(&vm->mm, &bo_va->node, bo->gem.size); + err = drm_mm_insert_node(&vm->mm, &bo_va->node, lima_bo_size(bo)); if (err) goto err_out1;
- err = lima_vm_map_page_table(vm, bo->pages_dma_addr, bo_va->node.start, - bo_va->node.start + bo_va->node.size - 1); - if (err) - goto err_out2; + for_each_sg_dma_page(bo->base.sgt->sgl, &sg_iter, bo->base.sgt->nents, 0) { + err = lima_vm_map_page(vm, sg_page_iter_dma_address(&sg_iter), + bo_va->node.start + offset); + if (err) + goto err_out2; + + offset += PAGE_SIZE; + }
mutex_unlock(&vm->lock);
@@ -145,6 +141,8 @@ int lima_vm_bo_add(struct lima_vm *vm, struct lima_bo *bo, bool create) return 0;
err_out2: + if (offset) + lima_vm_unmap_range(vm, bo_va->node.start, bo_va->node.start + offset - 1); drm_mm_remove_node(&bo_va->node); err_out1: mutex_unlock(&vm->lock); @@ -168,8 +166,8 @@ void lima_vm_bo_del(struct lima_vm *vm, struct lima_bo *bo)
mutex_lock(&vm->lock);
- lima_vm_unmap_page_table(vm, bo_va->node.start, - bo_va->node.start + bo_va->node.size - 1); + lima_vm_unmap_range(vm, bo_va->node.start, + bo_va->node.start + bo_va->node.size - 1);
drm_mm_remove_node(&bo_va->node);
@@ -215,9 +213,8 @@ struct lima_vm *lima_vm_create(struct lima_device *dev) goto err_out0;
if (dev->dlbu_cpu) { - int err = lima_vm_map_page_table( - vm, &dev->dlbu_dma, LIMA_VA_RESERVE_DLBU, - LIMA_VA_RESERVE_DLBU + LIMA_PAGE_SIZE - 1); + int err = lima_vm_map_page( + vm, dev->dlbu_dma, LIMA_VA_RESERVE_DLBU); if (err) goto err_out1; }