diff options
Diffstat (limited to 'common/recipes-kernel/linux/files/0137-drm-amdkfd-Implement-address-watch-debugger-IOCTL.patch')
| -rw-r--r-- | common/recipes-kernel/linux/files/0137-drm-amdkfd-Implement-address-watch-debugger-IOCTL.patch | 134 |
1 files changed, 0 insertions, 134 deletions
diff --git a/common/recipes-kernel/linux/files/0137-drm-amdkfd-Implement-address-watch-debugger-IOCTL.patch b/common/recipes-kernel/linux/files/0137-drm-amdkfd-Implement-address-watch-debugger-IOCTL.patch deleted file mode 100644 index 697ce81d..00000000 --- a/common/recipes-kernel/linux/files/0137-drm-amdkfd-Implement-address-watch-debugger-IOCTL.patch +++ /dev/null @@ -1,134 +0,0 @@ -From f8bd13338a9a42358158954251969e66934ec3d1 Mon Sep 17 00:00:00 2001 -From: Yair Shachar <yair.shachar@amd.com> -Date: Wed, 20 May 2015 14:09:39 +0300 -Subject: [PATCH 0137/1050] drm/amdkfd: Implement address watch debugger IOCTL - -v2: - -- rename get_dbgmgr_mutex to kfd_get_dbgmgr_mutex to namespace it -- change void* to uint64_t inside ioctl arguments -- use kmalloc instead of kzalloc because we use copy_from_user - immediately after it - -Signed-off-by: Yair Shachar <yair.shachar@amd.com> -Signed-off-by: Oded Gabbay <oded.gabbay@gmail.com> ---- - drivers/gpu/drm/amd/amdkfd/kfd_chardev.c | 102 ++++++++++++++++++++++++++++++- - 1 file changed, 101 insertions(+), 1 deletion(-) - -diff --git a/drivers/gpu/drm/amd/amdkfd/kfd_chardev.c b/drivers/gpu/drm/amd/amdkfd/kfd_chardev.c -index 9e5261d..96c904b 100644 ---- a/drivers/gpu/drm/amd/amdkfd/kfd_chardev.c -+++ b/drivers/gpu/drm/amd/amdkfd/kfd_chardev.c -@@ -528,7 +528,107 @@ static int kfd_ioctl_dbg_unrgesiter(struct file *filep, - static int kfd_ioctl_dbg_address_watch(struct file *filep, - struct kfd_process *p, void *data) - { -- long status = -EFAULT; -+ struct kfd_ioctl_dbg_address_watch_args *args = data; -+ struct kfd_dev *dev; -+ struct dbg_address_watch_info aw_info; -+ unsigned char *args_buff; -+ long status; -+ void __user *cmd_from_user; -+ uint64_t watch_mask_value = 0; -+ unsigned int args_idx = 0; -+ -+ memset((void *) &aw_info, 0, sizeof(struct dbg_address_watch_info)); -+ -+ dev = kfd_device_by_id(args->gpu_id); -+ if (dev == NULL) -+ return -EINVAL; -+ -+ if (dev->device_info->asic_family == CHIP_CARRIZO) { -+ pr_debug("kfd_ioctl_dbg_wave_control not supported on CZ\n"); -+ return -EINVAL; -+ } -+ -+ cmd_from_user = (void __user *) args->content_ptr; -+ -+ /* Validate arguments */ -+ -+ if ((args->buf_size_in_bytes > MAX_ALLOWED_AW_BUFF_SIZE) || -+ (args->buf_size_in_bytes <= sizeof(*args)) || -+ (cmd_from_user == NULL)) -+ return -EINVAL; -+ -+ /* this is the actual buffer to work with */ -+ -+ args_buff = kmalloc(args->buf_size_in_bytes - -+ sizeof(*args), GFP_KERNEL); -+ if (args_buff == NULL) -+ return -ENOMEM; -+ -+ status = copy_from_user(args_buff, cmd_from_user, -+ args->buf_size_in_bytes - sizeof(*args)); -+ -+ if (status != 0) { -+ pr_debug("Failed to copy address watch user data\n"); -+ kfree(args_buff); -+ return -EINVAL; -+ } -+ -+ aw_info.process = p; -+ -+ aw_info.num_watch_points = *((uint32_t *)(&args_buff[args_idx])); -+ args_idx += sizeof(aw_info.num_watch_points); -+ -+ aw_info.watch_mode = (enum HSA_DBG_WATCH_MODE *) &args_buff[args_idx]; -+ args_idx += sizeof(enum HSA_DBG_WATCH_MODE) * aw_info.num_watch_points; -+ -+ /* -+ * set watch address base pointer to point on the array base -+ * within args_buff -+ */ -+ aw_info.watch_address = (uint64_t *) &args_buff[args_idx]; -+ -+ /* skip over the addresses buffer */ -+ args_idx += sizeof(aw_info.watch_address) * aw_info.num_watch_points; -+ -+ if (args_idx >= args->buf_size_in_bytes) { -+ kfree(args_buff); -+ return -EINVAL; -+ } -+ -+ watch_mask_value = (uint64_t) args_buff[args_idx]; -+ -+ if (watch_mask_value > 0) { -+ /* -+ * There is an array of masks. -+ * set watch mask base pointer to point on the array base -+ * within args_buff -+ */ -+ aw_info.watch_mask = (uint64_t *) &args_buff[args_idx]; -+ -+ /* skip over the masks buffer */ -+ args_idx += sizeof(aw_info.watch_mask) * -+ aw_info.num_watch_points; -+ } else { -+ /* just the NULL mask, set to NULL and skip over it */ -+ aw_info.watch_mask = NULL; -+ args_idx += sizeof(aw_info.watch_mask); -+ } -+ -+ if (args_idx > args->buf_size_in_bytes) { -+ kfree(args_buff); -+ return -EINVAL; -+ } -+ -+ /* Currently HSA Event is not supported for DBG */ -+ aw_info.watch_event = NULL; -+ -+ mutex_lock(kfd_get_dbgmgr_mutex()); -+ -+ status = kfd_dbgmgr_address_watch(dev->dbgmgr, &aw_info); -+ -+ mutex_unlock(kfd_get_dbgmgr_mutex()); -+ -+ kfree(args_buff); - - return status; - } --- -1.9.1 - |