From 9ca7a0b9b98e41c543bd328469e213b89251d470 Mon Sep 17 00:00:00 2001 From: Sammy He Date: Wed, 2 Nov 2011 20:08:42 +0800 Subject: [PATCH] ENGR00161215-2 vpu: Add ioctls for querying and setting bitwork memory Add VPU_IOC_QUERY_BITWORK_MEM and VPU_IOC_SET_BITWORK_MEM ioctls implementation for registerring bitwork memory allocated from user space to vpu driver. Signed-off-by: Sammy He (cherry picked from commit 98d71e85dbd05df9c866d153a4ead9526a26422e) --- drivers/mxc/vpu/mxc_vpu.c | 20 ++++++++++++++++++++ 1 files changed, 20 insertions(+), 0 deletions(-) diff --git a/drivers/mxc/vpu/mxc_vpu.c b/drivers/mxc/vpu/mxc_vpu.c index 41bd188..00f164a 100644 --- a/drivers/mxc/vpu/mxc_vpu.c +++ b/drivers/mxc/vpu/mxc_vpu.c @@ -446,6 +446,26 @@ static int vpu_ioctl(struct inode *inode, struct file *filp, u_int cmd, } break; } + /* + * The following two ioctl is used when user allocates working buffer + * and register it to vpu driver. + */ + case VPU_IOC_QUERY_BITWORK_MEM: + { + if (copy_to_user((void __user *)arg, + &bitwork_mem, + sizeof(struct vpu_mem_desc))) + ret = -EFAULT; + break; + } + case VPU_IOC_SET_BITWORK_MEM: + { + if (copy_from_user(&bitwork_mem, + (struct vpu_mem_desc *)arg, + sizeof(struct vpu_mem_desc))) + ret = -EFAULT; + break; + } case VPU_IOC_SYS_SW_RESET: { if (vpu_plat->reset) -- 1.5.4.4