From 9d77db3c730780c8ef5ccd4b66403ff5675cfe4e Mon Sep 17 00:00:00 2001
From: hc <hc@nodka.com>
Date: Mon, 13 May 2024 10:30:14 +0000
Subject: [PATCH] modify sin led gpio
---
kernel/drivers/gpu/drm/etnaviv/etnaviv_gem.c | 144 ++++++++++++++++++++---------------------------
1 files changed, 61 insertions(+), 83 deletions(-)
diff --git a/kernel/drivers/gpu/drm/etnaviv/etnaviv_gem.c b/kernel/drivers/gpu/drm/etnaviv/etnaviv_gem.c
index 1fa7422..4244740 100644
--- a/kernel/drivers/gpu/drm/etnaviv/etnaviv_gem.c
+++ b/kernel/drivers/gpu/drm/etnaviv/etnaviv_gem.c
@@ -3,10 +3,11 @@
* Copyright (C) 2015-2018 Etnaviv Project
*/
-#include <linux/spinlock.h>
+#include <drm/drm_prime.h>
+#include <linux/dma-mapping.h>
#include <linux/shmem_fs.h>
-#include <linux/sched/mm.h>
-#include <linux/sched/task.h>
+#include <linux/spinlock.h>
+#include <linux/vmalloc.h>
#include "etnaviv_drv.h"
#include "etnaviv_gem.h"
@@ -26,7 +27,7 @@
* because display controller, GPU, etc. are not coherent.
*/
if (etnaviv_obj->flags & ETNA_BO_CACHE_MASK)
- dma_map_sg(dev->dev, sgt->sgl, sgt->nents, DMA_BIDIRECTIONAL);
+ dma_map_sgtable(dev->dev, sgt, DMA_BIDIRECTIONAL, 0);
}
static void etnaviv_gem_scatterlist_unmap(struct etnaviv_gem_object *etnaviv_obj)
@@ -50,7 +51,7 @@
* discard those writes.
*/
if (etnaviv_obj->flags & ETNA_BO_CACHE_MASK)
- dma_unmap_sg(dev->dev, sgt->sgl, sgt->nents, DMA_BIDIRECTIONAL);
+ dma_unmap_sgtable(dev->dev, sgt, DMA_BIDIRECTIONAL, 0);
}
/* called with etnaviv_obj->lock held */
@@ -102,7 +103,8 @@
int npages = etnaviv_obj->base.size >> PAGE_SHIFT;
struct sg_table *sgt;
- sgt = drm_prime_pages_to_sg(etnaviv_obj->pages, npages);
+ sgt = drm_prime_pages_to_sg(etnaviv_obj->base.dev,
+ etnaviv_obj->pages, npages);
if (IS_ERR(sgt)) {
dev_err(dev->dev, "failed to allocate sgt: %ld\n",
PTR_ERR(sgt));
@@ -222,28 +224,16 @@
static struct etnaviv_vram_mapping *
etnaviv_gem_get_vram_mapping(struct etnaviv_gem_object *obj,
- struct etnaviv_iommu *mmu)
+ struct etnaviv_iommu_context *context)
{
struct etnaviv_vram_mapping *mapping;
list_for_each_entry(mapping, &obj->vram_list, obj_node) {
- if (mapping->mmu == mmu)
+ if (mapping->context == context)
return mapping;
}
return NULL;
-}
-
-void etnaviv_gem_mapping_reference(struct etnaviv_vram_mapping *mapping)
-{
- struct etnaviv_gem_object *etnaviv_obj = mapping->object;
-
- drm_gem_object_get(&etnaviv_obj->base);
-
- mutex_lock(&etnaviv_obj->lock);
- WARN_ON(mapping->use == 0);
- mapping->use += 1;
- mutex_unlock(&etnaviv_obj->lock);
}
void etnaviv_gem_mapping_unreference(struct etnaviv_vram_mapping *mapping)
@@ -255,11 +245,12 @@
mapping->use -= 1;
mutex_unlock(&etnaviv_obj->lock);
- drm_gem_object_put_unlocked(&etnaviv_obj->base);
+ drm_gem_object_put(&etnaviv_obj->base);
}
struct etnaviv_vram_mapping *etnaviv_gem_mapping_get(
- struct drm_gem_object *obj, struct etnaviv_gpu *gpu)
+ struct drm_gem_object *obj, struct etnaviv_iommu_context *mmu_context,
+ u64 va)
{
struct etnaviv_gem_object *etnaviv_obj = to_etnaviv_bo(obj);
struct etnaviv_vram_mapping *mapping;
@@ -267,7 +258,7 @@
int ret = 0;
mutex_lock(&etnaviv_obj->lock);
- mapping = etnaviv_gem_get_vram_mapping(etnaviv_obj, gpu->mmu);
+ mapping = etnaviv_gem_get_vram_mapping(etnaviv_obj, mmu_context);
if (mapping) {
/*
* Holding the object lock prevents the use count changing
@@ -276,12 +267,12 @@
* the MMU owns this mapping to close this race.
*/
if (mapping->use == 0) {
- mutex_lock(&gpu->mmu->lock);
- if (mapping->mmu == gpu->mmu)
+ mutex_lock(&mmu_context->lock);
+ if (mapping->context == mmu_context)
mapping->use += 1;
else
mapping = NULL;
- mutex_unlock(&gpu->mmu->lock);
+ mutex_unlock(&mmu_context->lock);
if (mapping)
goto out;
} else {
@@ -314,15 +305,18 @@
list_del(&mapping->obj_node);
}
- mapping->mmu = gpu->mmu;
+ mapping->context = etnaviv_iommu_context_get(mmu_context);
mapping->use = 1;
- ret = etnaviv_iommu_map_gem(gpu->mmu, etnaviv_obj, gpu->memory_base,
- mapping);
- if (ret < 0)
+ ret = etnaviv_iommu_map_gem(mmu_context, etnaviv_obj,
+ mmu_context->global->memory_base,
+ mapping, va);
+ if (ret < 0) {
+ etnaviv_iommu_context_put(mmu_context);
kfree(mapping);
- else
+ } else {
list_add_tail(&mapping->obj_node, &etnaviv_obj->vram_list);
+ }
out:
mutex_unlock(&etnaviv_obj->lock);
@@ -379,7 +373,7 @@
}
int etnaviv_gem_cpu_prep(struct drm_gem_object *obj, u32 op,
- struct timespec *timeout)
+ struct drm_etnaviv_timespec *timeout)
{
struct etnaviv_gem_object *etnaviv_obj = to_etnaviv_bo(obj);
struct drm_device *dev = obj->dev;
@@ -397,22 +391,21 @@
}
if (op & ETNA_PREP_NOSYNC) {
- if (!reservation_object_test_signaled_rcu(etnaviv_obj->resv,
+ if (!dma_resv_test_signaled_rcu(obj->resv,
write))
return -EBUSY;
} else {
unsigned long remain = etnaviv_timeout_to_jiffies(timeout);
- ret = reservation_object_wait_timeout_rcu(etnaviv_obj->resv,
+ ret = dma_resv_wait_timeout_rcu(obj->resv,
write, true, remain);
if (ret <= 0)
return ret == 0 ? -ETIMEDOUT : ret;
}
if (etnaviv_obj->flags & ETNA_BO_CACHED) {
- dma_sync_sg_for_cpu(dev->dev, etnaviv_obj->sgt->sgl,
- etnaviv_obj->sgt->nents,
- etnaviv_op_to_dma_dir(op));
+ dma_sync_sgtable_for_cpu(dev->dev, etnaviv_obj->sgt,
+ etnaviv_op_to_dma_dir(op));
etnaviv_obj->last_cpu_prep_op = op;
}
@@ -427,8 +420,7 @@
if (etnaviv_obj->flags & ETNA_BO_CACHED) {
/* fini without a prep is almost certainly a userspace error */
WARN_ON(etnaviv_obj->last_cpu_prep_op == 0);
- dma_sync_sg_for_device(dev->dev, etnaviv_obj->sgt->sgl,
- etnaviv_obj->sgt->nents,
+ dma_sync_sgtable_for_device(dev->dev, etnaviv_obj->sgt,
etnaviv_op_to_dma_dir(etnaviv_obj->last_cpu_prep_op));
etnaviv_obj->last_cpu_prep_op = 0;
}
@@ -437,7 +429,7 @@
}
int etnaviv_gem_wait_bo(struct etnaviv_gpu *gpu, struct drm_gem_object *obj,
- struct timespec *timeout)
+ struct drm_etnaviv_timespec *timeout)
{
struct etnaviv_gem_object *etnaviv_obj = to_etnaviv_bo(obj);
@@ -449,7 +441,7 @@
const char *type, struct seq_file *m)
{
if (!test_bit(DMA_FENCE_FLAG_SIGNALED_BIT, &fence->flags))
- seq_printf(m, "\t%9s: %s %s seq %u\n",
+ seq_printf(m, "\t%9s: %s %s seq %llu\n",
type,
fence->ops->get_driver_name(fence),
fence->ops->get_timeline_name(fence),
@@ -459,8 +451,8 @@
static void etnaviv_gem_describe(struct drm_gem_object *obj, struct seq_file *m)
{
struct etnaviv_gem_object *etnaviv_obj = to_etnaviv_bo(obj);
- struct reservation_object *robj = etnaviv_obj->resv;
- struct reservation_object_list *fobj;
+ struct dma_resv *robj = obj->resv;
+ struct dma_resv_list *fobj;
struct dma_fence *fence;
unsigned long off = drm_vma_node_start(&obj->vma_node);
@@ -536,12 +528,14 @@
list_for_each_entry_safe(mapping, tmp, &etnaviv_obj->vram_list,
obj_node) {
- struct etnaviv_iommu *mmu = mapping->mmu;
+ struct etnaviv_iommu_context *context = mapping->context;
WARN_ON(mapping->use);
- if (mmu)
- etnaviv_iommu_unmap_gem(mmu, mapping);
+ if (context) {
+ etnaviv_iommu_unmap_gem(context, mapping);
+ etnaviv_iommu_context_put(context);
+ }
list_del(&mapping->obj_node);
kfree(mapping);
@@ -549,8 +543,6 @@
drm_gem_free_mmap_offset(obj);
etnaviv_obj->ops->release(etnaviv_obj);
- if (etnaviv_obj->resv == &etnaviv_obj->_resv)
- reservation_object_fini(&etnaviv_obj->_resv);
drm_gem_object_release(obj);
kfree(etnaviv_obj);
@@ -567,8 +559,7 @@
}
static int etnaviv_gem_new_impl(struct drm_device *dev, u32 size, u32 flags,
- struct reservation_object *robj, const struct etnaviv_gem_ops *ops,
- struct drm_gem_object **obj)
+ const struct etnaviv_gem_ops *ops, struct drm_gem_object **obj)
{
struct etnaviv_gem_object *etnaviv_obj;
unsigned sz = sizeof(*etnaviv_obj);
@@ -596,12 +587,6 @@
etnaviv_obj->flags = flags;
etnaviv_obj->ops = ops;
- if (robj) {
- etnaviv_obj->resv = robj;
- } else {
- etnaviv_obj->resv = &etnaviv_obj->_resv;
- reservation_object_init(&etnaviv_obj->_resv);
- }
mutex_init(&etnaviv_obj->lock);
INIT_LIST_HEAD(&etnaviv_obj->vram_list);
@@ -615,12 +600,13 @@
int etnaviv_gem_new_handle(struct drm_device *dev, struct drm_file *file,
u32 size, u32 flags, u32 *handle)
{
+ struct etnaviv_drm_private *priv = dev->dev_private;
struct drm_gem_object *obj = NULL;
int ret;
size = PAGE_ALIGN(size);
- ret = etnaviv_gem_new_impl(dev, size, flags, NULL,
+ ret = etnaviv_gem_new_impl(dev, size, flags,
&etnaviv_gem_shmem_ops, &obj);
if (ret)
goto fail;
@@ -628,23 +614,16 @@
lockdep_set_class(&to_etnaviv_bo(obj)->lock, &etnaviv_shm_lock_class);
ret = drm_gem_object_init(dev, obj, size);
- if (ret == 0) {
- struct address_space *mapping;
-
- /*
- * Our buffers are kept pinned, so allocating them
- * from the MOVABLE zone is a really bad idea, and
- * conflicts with CMA. See comments above new_inode()
- * why this is required _and_ expected if you're
- * going to pin these pages.
- */
- mapping = obj->filp->f_mapping;
- mapping_set_gfp_mask(mapping, GFP_HIGHUSER |
- __GFP_RETRY_MAYFAIL | __GFP_NOWARN);
- }
-
if (ret)
goto fail;
+
+ /*
+ * Our buffers are kept pinned, so allocating them from the MOVABLE
+ * zone is a really bad idea, and conflicts with CMA. See comments
+ * above new_inode() why this is required _and_ expected if you're
+ * going to pin these pages.
+ */
+ mapping_set_gfp_mask(obj->filp->f_mapping, priv->shm_gfp_mask);
etnaviv_gem_obj_add(dev, obj);
@@ -652,19 +631,18 @@
/* drop reference from allocate - handle holds it now */
fail:
- drm_gem_object_put_unlocked(obj);
+ drm_gem_object_put(obj);
return ret;
}
int etnaviv_gem_new_private(struct drm_device *dev, size_t size, u32 flags,
- struct reservation_object *robj, const struct etnaviv_gem_ops *ops,
- struct etnaviv_gem_object **res)
+ const struct etnaviv_gem_ops *ops, struct etnaviv_gem_object **res)
{
struct drm_gem_object *obj;
int ret;
- ret = etnaviv_gem_new_impl(dev, size, flags, robj, ops, &obj);
+ ret = etnaviv_gem_new_impl(dev, size, flags, ops, &obj);
if (ret)
return ret;
@@ -681,7 +659,7 @@
struct etnaviv_gem_userptr *userptr = &etnaviv_obj->userptr;
int ret, pinned = 0, npages = etnaviv_obj->base.size >> PAGE_SHIFT;
- might_lock_read(¤t->mm->mmap_sem);
+ might_lock_read(¤t->mm->mmap_lock);
if (userptr->mm != current->mm)
return -EPERM;
@@ -695,10 +673,10 @@
uint64_t ptr = userptr->ptr + pinned * PAGE_SIZE;
struct page **pages = pvec + pinned;
- ret = get_user_pages_fast(ptr, num_pages,
- !userptr->ro ? FOLL_WRITE : 0, pages);
+ ret = pin_user_pages_fast(ptr, num_pages,
+ FOLL_WRITE | FOLL_FORCE, pages);
if (ret < 0) {
- release_pages(pvec, pinned);
+ unpin_user_pages(pvec, pinned);
kvfree(pvec);
return ret;
}
@@ -722,7 +700,7 @@
if (etnaviv_obj->pages) {
int npages = etnaviv_obj->base.size >> PAGE_SHIFT;
- release_pages(etnaviv_obj->pages, npages);
+ unpin_user_pages(etnaviv_obj->pages, npages);
kvfree(etnaviv_obj->pages);
}
}
@@ -746,7 +724,7 @@
struct etnaviv_gem_object *etnaviv_obj;
int ret;
- ret = etnaviv_gem_new_private(dev, size, ETNA_BO_CACHED, NULL,
+ ret = etnaviv_gem_new_private(dev, size, ETNA_BO_CACHED,
&etnaviv_gem_userptr_ops, &etnaviv_obj);
if (ret)
return ret;
@@ -762,6 +740,6 @@
ret = drm_gem_handle_create(file, &etnaviv_obj->base, handle);
/* drop reference from allocate - handle holds it now */
- drm_gem_object_put_unlocked(&etnaviv_obj->base);
+ drm_gem_object_put(&etnaviv_obj->base);
return ret;
}
--
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