From 63a2f5db634c220cefb1c0d1a8ed459b6adecd25 Mon Sep 17 00:00:00 2001 From: Chris Wilson Date: Sat, 17 Dec 2016 11:54:16 +0000 Subject: lib/sw_sync: Provide compatiblity stubs for old headers Common practice for igt when providing tests for new features in unreleased kernels is to include a complete set of uABI stubs. Lack of such compatability breaks compilation on current distributions' kernel headers. Signed-off-by: Chris Wilson --- lib/sw_sync.c | 94 ++++++++++++++++++++++++++++++++++++----------------------- 1 file changed, 58 insertions(+), 36 deletions(-) (limited to 'lib') diff --git a/lib/sw_sync.c b/lib/sw_sync.c index 276dc795..116f9357 100644 --- a/lib/sw_sync.c +++ b/lib/sw_sync.c @@ -33,7 +33,6 @@ #include #include #include -#include #include #include "igt_debugfs.h" @@ -41,38 +40,66 @@ #include "drmtest.h" #include "ioctl_wrappers.h" -#ifndef SW_SYNC_IOC_INC -struct sw_sync_create_fence_data { +struct int_sync_create_fence_data { __u32 value; char name[32]; __s32 fence; }; -#define LOCAL_SW_SYNC_IOC_MAGIC 'W' -#define LOCAL_SW_SYNC_IOC_CREATE_FENCE _IOWR(LOCAL_SW_SYNC_IOC_MAGIC, 0,\ - struct sw_sync_create_fence_data) -#define LOCAL_SW_SYNC_IOC_INC _IOW(LOCAL_SW_SYNC_IOC_MAGIC, 1, __u32) -#endif +#define INT_SYNC_IOC_MAGIC 'W' +#define INT_SYNC_IOC_CREATE_FENCE _IOWR(INT_SYNC_IOC_MAGIC, 0, struct int_sync_create_fence_data) +#define INT_SYNC_IOC_INC _IOW(INT_SYNC_IOC_MAGIC, 1, __u32) + +struct local_sync_merge_data { + char name[32]; + + __s32 fd2; + __s32 fence; + + __u32 flags; + __u32 pad; +}; + +struct local_sync_fence_info { + char obj_name[32]; + char driver_name[32]; + + __s32 status; + __u32 flags; + + __u64 timestamp_ns; +}; +struct local_sync_file_info { + char name[32]; + + __s32 status; + __u32 flags; + __u32 num_fences; + __u32 pad; + + __u64 sync_fence_info; +}; + +#define UABI_SYNC_IOC_MAGIC '>' +#define LOCAL_SYNC_IOC_MERGE _IOWR(UABI_SYNC_IOC_MAGIC, 3, struct local_sync_merge_data) +#define LOCAL_SYNC_IOC_FILE_INFO _IOWR(UABI_SYNC_IOC_MAGIC, 4, struct local_sync_file_info) static bool kernel_sw_sync_path(char *path, int length) { snprintf(path, length, "%s", "/dev/sw_sync"); - if (access(path, R_OK | W_OK) == 0) { - return true; - } + if (access(path, R_OK | W_OK) == 0) + return true; snprintf(path, length, "%s", "/sys/kernel/debug/sync/sw_sync"); - if (access(path, R_OK | W_OK) == 0) { - return true; - } + if (access(path, R_OK | W_OK) == 0) + return true; snprintf(path, length, "%s/sw_sync", igt_debugfs_mount()); - if (access(path, R_OK | W_OK) == 0) { - return true; - } + if (access(path, R_OK | W_OK) == 0) + return true; - return false; + return false; } static bool sw_sync_fd_is_valid(int fd) @@ -80,7 +107,7 @@ static bool sw_sync_fd_is_valid(int fd) int status; if (fd < 0) - return 0; + return false; status = fcntl(fd, F_GETFD, 0); return status >= 0; @@ -102,10 +129,10 @@ int sw_sync_timeline_create(void) int __sw_sync_fence_create(int fd, uint32_t seqno) { - struct sw_sync_create_fence_data data = {0}; + struct int_sync_create_fence_data data = {}; data.value = seqno; - if (igt_ioctl(fd, LOCAL_SW_SYNC_IOC_CREATE_FENCE, &data)) + if (igt_ioctl(fd, INT_SYNC_IOC_CREATE_FENCE, &data)) return -errno; return data.fence; @@ -122,19 +149,17 @@ int sw_sync_fence_create(int fd, uint32_t seqno) void sw_sync_timeline_inc(int fd, uint32_t count) { - uint32_t arg = count; - - do_ioctl(fd, LOCAL_SW_SYNC_IOC_INC, &arg); + do_ioctl(fd, INT_SYNC_IOC_INC, &count); } int sync_merge(int fd1, int fd2) { - struct sync_merge_data data = {}; + struct local_sync_merge_data data = {}; int err; data.fd2 = fd2; - err = ioctl(fd1, SYNC_IOC_MERGE, &data); + err = ioctl(fd1, LOCAL_SYNC_IOC_MERGE, &data); if (err < 0) return -errno; @@ -143,12 +168,9 @@ int sync_merge(int fd1, int fd2) int sync_wait(int fd, int timeout) { - struct pollfd fds = {0}; + struct pollfd fds = { fd, POLLIN }; int ret; - fds.fd = fd; - fds.events = POLLIN; - do { ret = poll(&fds, 1, timeout); if (ret > 0) { @@ -168,9 +190,9 @@ int sync_wait(int fd, int timeout) int sync_fence_count(int fd) { - struct sync_file_info info = {0}; + struct local_sync_file_info info = {}; - if (ioctl(fd, SYNC_IOC_FILE_INFO, &info)) + if (ioctl(fd, LOCAL_SYNC_IOC_FILE_INFO, &info)) return -errno; return info.num_fences; @@ -178,12 +200,12 @@ int sync_fence_count(int fd) static int __sync_fence_count_status(int fd, int status) { - struct sync_file_info info = {0}; - struct sync_fence_info *fence_info; + struct local_sync_file_info info = {}; + struct local_sync_fence_info *fence_info; int count; int i; - if (ioctl(fd, SYNC_IOC_FILE_INFO, &info)) + if (ioctl(fd, LOCAL_SYNC_IOC_FILE_INFO, &info)) return -errno; fence_info = calloc(info.num_fences, sizeof(*fence_info)); @@ -191,7 +213,7 @@ static int __sync_fence_count_status(int fd, int status) return -ENOMEM; info.sync_fence_info = (uintptr_t)fence_info; - if (ioctl(fd, SYNC_IOC_FILE_INFO, &info)) { + if (ioctl(fd, LOCAL_SYNC_IOC_FILE_INFO, &info)) { count = -errno; } else { count = 0; -- cgit v1.2.3