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linux-user: syscall: ioctls: support DRM_IOCTL_I915_GETPARAM 

Another DRM_IOCTL_I915 patches will be sent next.

Signed-off-by: Chen Gang <chengang@emindsoft.com.cn>
Reviewed-by: Laurent Vivier <laurent@vivier.eu>
Message-Id: <20200802133938.12055-1-chengang@emindsoft.com.cn>
Signed-off-by: Laurent Vivier <laurent@vivier.eu>
This commit is contained in:
Chen Gang 2020-08-02 21:39:38 +08:00 committed by Laurent Vivier
parent b09d64064b
commit 913b03c264
4 changed files with 50 additions and 0 deletions
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3
linux-user/ioctls.h
View File

@ -581,6 +581,9 @@
#ifdef HAVE_DRM_H
IOCTL_SPECIAL(DRM_IOCTL_VERSION, IOC_RW, do_ioctl_drm,
MK_PTR(MK_STRUCT(STRUCT_drm_version)))
IOCTL_SPECIAL(DRM_IOCTL_I915_GETPARAM, IOC_RW, do_ioctl_drm_i915,
MK_PTR(MK_STRUCT(STRUCT_drm_i915_getparam)))
#endif
#ifdef TARGET_TIOCSTART

35
linux-user/syscall.c
View File

@ -114,6 +114,7 @@
#include <sound/asound.h>
#ifdef HAVE_DRM_H
#include <libdrm/drm.h>
#include <libdrm/i915_drm.h>
#endif
#include "linux_loop.h"
#include "uname.h"
@ -5426,6 +5427,40 @@ static abi_long do_ioctl_drm(const IOCTLEntry *ie, uint8_t *buf_temp,
return -TARGET_ENOSYS;
}
static abi_long do_ioctl_drm_i915_getparam(const IOCTLEntry *ie,
struct drm_i915_getparam *gparam,
int fd, abi_long arg)
{
abi_long ret;
int value;
struct target_drm_i915_getparam *target_gparam;
if (!lock_user_struct(VERIFY_READ, target_gparam, arg, 0)) {
return -TARGET_EFAULT;
}
__get_user(gparam->param, &target_gparam->param);
gparam->value = &value;
ret = get_errno(safe_ioctl(fd, ie->host_cmd, gparam));
put_user_s32(value, target_gparam->value);
unlock_user_struct(target_gparam, arg, 0);
return ret;
}
static abi_long do_ioctl_drm_i915(const IOCTLEntry *ie, uint8_t *buf_temp,
int fd, int cmd, abi_long arg)
{
switch (ie->host_cmd) {
case DRM_IOCTL_I915_GETPARAM:
return do_ioctl_drm_i915_getparam(ie,
(struct drm_i915_getparam *)buf_temp,
fd, arg);
default:
return -TARGET_ENOSYS;
}
}
#endif
IOCTLEntry ioctl_entries[] = {

8
linux-user/syscall_defs.h
View File

@ -1177,6 +1177,9 @@ struct target_rtc_pll_info {
/* drm ioctls */
#define TARGET_DRM_IOCTL_VERSION TARGET_IOWRU('d', 0x00)
/* drm i915 ioctls */
#define TARGET_DRM_IOCTL_I915_GETPARAM TARGET_IOWRU('d', 0x46)
/* from asm/termbits.h */
#define TARGET_NCC 8
@ -2620,6 +2623,11 @@ struct target_drm_version {
abi_ulong desc;
};
struct target_drm_i915_getparam {
int param;
abi_ulong value;
};
#include "socket.h"
#include "errno_defs.h"

4
linux-user/syscall_types.h
View File

@ -325,6 +325,10 @@ STRUCT(drm_version,
TYPE_ULONG, /* desc_len */
TYPE_PTRVOID) /* desc */
STRUCT(drm_i915_getparam,
TYPE_INT, /* param */
TYPE_PTRVOID) /* value */
STRUCT(file_clone_range,
TYPE_LONGLONG, /* src_fd */
TYPE_ULONGLONG, /* src_offset */