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Date: Fri, 18 Mar 2016 10:20:55 -0700
From: Joe Perches <joe@...ches.com>
To: Gustavo Padovan <gustavo@...ovan.org>,
Russell King <rmk+kernel@....linux.org.uk>,
Thierry Reding <thierry.reding@...il.com>,
Terje Bergström <tbergstrom@...dia.com>,
Stephen Warren <swarren@...dotorg.org>,
Alexandre Courbot <gnurou@...il.com>,
David Airlie <airlied@...ux.ie>,
Gerd Hoffmann <kraxel@...hat.com>
Cc: Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
Andrew Morton <akpm@...ux-foundation.org>,
Daniel Vetter <daniel.vetter@...el.com>,
Rob Clark <robdclark@...il.com>,
dri-devel@...ts.freedesktop.org, linux-kernel@...r.kernel.org,
linux-tegra@...r.kernel.org,
virtualization@...ts.linux-foundation.org
Subject: [PATCH] gpu/drm: Use u64_to_user_pointer
Use the newly added u64_to_user_pointer a bit more frequently.
Signed-off-by: Joe Perches <joe@...ches.com>
---
drivers/gpu/drm/armada/armada_gem.c | 2 +-
drivers/gpu/drm/nouveau/nouveau_gem.c | 7 ++++---
drivers/gpu/drm/tegra/drm.c | 15 ++++++++-------
drivers/gpu/drm/vc4/vc4_bo.c | 4 ++--
drivers/gpu/drm/vc4/vc4_gem.c | 10 +++++-----
drivers/gpu/drm/virtio/virtgpu_ioctl.c | 5 ++---
6 files changed, 22 insertions(+), 21 deletions(-)
diff --git a/drivers/gpu/drm/armada/armada_gem.c b/drivers/gpu/drm/armada/armada_gem.c
index 6e731db..7629dd2 100644
--- a/drivers/gpu/drm/armada/armada_gem.c
+++ b/drivers/gpu/drm/armada/armada_gem.c
@@ -382,7 +382,7 @@ int armada_gem_pwrite_ioctl(struct drm_device *dev, void *data,
if (args->size == 0)
return 0;
- ptr = (char __user *)(uintptr_t)args->ptr;
+ ptr = u64_to_user_ptr(args->ptr);
if (!access_ok(VERIFY_READ, ptr, args->size))
return -EFAULT;
diff --git a/drivers/gpu/drm/nouveau/nouveau_gem.c b/drivers/gpu/drm/nouveau/nouveau_gem.c
index a0865c4..1a6604c9 100644
--- a/drivers/gpu/drm/nouveau/nouveau_gem.c
+++ b/drivers/gpu/drm/nouveau/nouveau_gem.c
@@ -467,11 +467,12 @@ validate_list(struct nouveau_channel *chan, struct nouveau_cli *cli,
uint64_t user_pbbo_ptr)
{
struct nouveau_drm *drm = chan->drm;
- struct drm_nouveau_gem_pushbuf_bo __user *upbbo =
- (void __force __user *)(uintptr_t)user_pbbo_ptr;
+ struct drm_nouveau_gem_pushbuf_bo __user *upbbo;
struct nouveau_bo *nvbo;
int ret, relocs = 0;
+ upbbo = u64_to_user_ptr(user_pbbo_ptr);
+
list_for_each_entry(nvbo, list, entry) {
struct drm_nouveau_gem_pushbuf_bo *b = &pbbo[nvbo->pbbo_index];
@@ -565,7 +566,7 @@ static inline void *
u_memcpya(uint64_t user, unsigned nmemb, unsigned size)
{
void *mem;
- void __user *userptr = (void __force __user *)(uintptr_t)user;
+ void __user *userptr = u64_to_user_ptr(user);
size *= nmemb;
diff --git a/drivers/gpu/drm/tegra/drm.c b/drivers/gpu/drm/tegra/drm.c
index 8e6b18c..b20c87d 100644
--- a/drivers/gpu/drm/tegra/drm.c
+++ b/drivers/gpu/drm/tegra/drm.c
@@ -329,12 +329,9 @@ int tegra_drm_submit(struct tegra_drm_context *context,
unsigned int num_cmdbufs = args->num_cmdbufs;
unsigned int num_relocs = args->num_relocs;
unsigned int num_waitchks = args->num_waitchks;
- struct drm_tegra_cmdbuf __user *cmdbufs =
- (void __user *)(uintptr_t)args->cmdbufs;
- struct drm_tegra_reloc __user *relocs =
- (void __user *)(uintptr_t)args->relocs;
- struct drm_tegra_waitchk __user *waitchks =
- (void __user *)(uintptr_t)args->waitchks;
+ struct drm_tegra_cmdbuf __user *cmdbufs;
+ struct drm_tegra_reloc __user *relocs;
+ struct drm_tegra_waitchk __user *waitchks;
struct drm_tegra_syncpt syncpt;
struct host1x_job *job;
int err;
@@ -354,6 +351,10 @@ int tegra_drm_submit(struct tegra_drm_context *context,
job->class = context->client->base.class;
job->serialize = true;
+ cmdbufs = u64_to_user_ptr(args->cmdbufs);
+ relocs = u64_to_user_ptr(args->relocs);
+ waitchks = u64_to_user_ptr(args->waitchks);
+
while (num_cmdbufs) {
struct drm_tegra_cmdbuf cmdbuf;
struct host1x_bo *bo;
@@ -389,7 +390,7 @@ int tegra_drm_submit(struct tegra_drm_context *context,
goto fail;
}
- if (copy_from_user(&syncpt, (void __user *)(uintptr_t)args->syncpts,
+ if (copy_from_user(&syncpt, u64_to_user_ptr(args->syncpts),
sizeof(syncpt))) {
err = -EFAULT;
goto fail;
diff --git a/drivers/gpu/drm/vc4/vc4_bo.c b/drivers/gpu/drm/vc4/vc4_bo.c
index 9807bc9..fe3a4aa 100644
--- a/drivers/gpu/drm/vc4/vc4_bo.c
+++ b/drivers/gpu/drm/vc4/vc4_bo.c
@@ -499,8 +499,8 @@ vc4_create_shader_bo_ioctl(struct drm_device *dev, void *data,
return PTR_ERR(bo);
if (copy_from_user(bo->base.vaddr,
- (void __user *)(uintptr_t)args->data,
- args->size)) {
+ u64_to_user_ptr(args->data),
+ args->size)) {
ret = -EFAULT;
goto fail;
}
diff --git a/drivers/gpu/drm/vc4/vc4_gem.c b/drivers/gpu/drm/vc4/vc4_gem.c
index 8d4384f..89d7931 100644
--- a/drivers/gpu/drm/vc4/vc4_gem.c
+++ b/drivers/gpu/drm/vc4/vc4_gem.c
@@ -120,7 +120,7 @@ vc4_get_hang_state_ioctl(struct drm_device *dev, void *data,
bo_state[i].size = vc4_bo->base.base.size;
}
- if (copy_to_user((void __user *)(uintptr_t)get_state->bo,
+ if (copy_to_user(u64_to_user_ptr(get_state->bo),
bo_state,
state->bo_count * sizeof(*bo_state)))
ret = -EFAULT;
@@ -550,7 +550,7 @@ vc4_cl_lookup_bos(struct drm_device *dev,
}
ret = copy_from_user(handles,
- (void __user *)(uintptr_t)args->bo_handles,
+ u64_to_user_ptr(args->bo_handles),
exec->bo_count * sizeof(uint32_t));
if (ret) {
DRM_ERROR("Failed to copy in GEM handles\n");
@@ -624,21 +624,21 @@ vc4_get_bcl(struct drm_device *dev, struct vc4_exec_info *exec)
exec->shader_state_size = args->shader_rec_count;
if (copy_from_user(bin,
- (void __user *)(uintptr_t)args->bin_cl,
+ u64_to_user_ptr(args->bin_cl),
args->bin_cl_size)) {
ret = -EFAULT;
goto fail;
}
if (copy_from_user(exec->shader_rec_u,
- (void __user *)(uintptr_t)args->shader_rec,
+ u64_to_user_ptr(args->shader_rec),
args->shader_rec_size)) {
ret = -EFAULT;
goto fail;
}
if (copy_from_user(exec->uniforms_u,
- (void __user *)(uintptr_t)args->uniforms,
+ u64_to_user_ptr(args->uniforms),
args->uniforms_size)) {
ret = -EFAULT;
goto fail;
diff --git a/drivers/gpu/drm/virtio/virtgpu_ioctl.c b/drivers/gpu/drm/virtio/virtgpu_ioctl.c
index b4de18e..e602bb6 100644
--- a/drivers/gpu/drm/virtio/virtgpu_ioctl.c
+++ b/drivers/gpu/drm/virtio/virtgpu_ioctl.c
@@ -123,7 +123,7 @@ static int virtio_gpu_execbuffer(struct drm_device *dev,
return -ENOMEM;
}
- user_bo_handles = (void __user *)(uintptr_t)exbuf->bo_handles;
+ user_bo_handles = u64_to_user_ptr(exbuf->bo_handles);
if (copy_from_user(bo_handles, user_bo_handles,
exbuf->num_bo_handles * sizeof(uint32_t))) {
ret = -EFAULT;
@@ -158,8 +158,7 @@ static int virtio_gpu_execbuffer(struct drm_device *dev,
ret = -ENOMEM;
goto out_unresv;
}
- if (copy_from_user(buf, (void __user *)(uintptr_t)exbuf->command,
- exbuf->size)) {
+ if (copy_from_user(buf, u64_to_user_ptr(exbuf->command), exbuf->size)) {
kfree(buf);
ret = -EFAULT;
goto out_unresv;
--
2.6.3.368.gf34be46
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