freedreno: sync uapi

(from drm-next for 4.8)

Signed-off-by: Rob Clark <robclark@freedesktop.org>

1 files changed, 70 insertions, 39 deletions

diff --git a/freedreno/msm/msm_drm.h b/freedreno/msm/msm_drm.h
index 6a2a2653..cbf75c3d 100644
--- a/freedreno/msm/msm_drm.h
+++ b/freedreno/msm/msm_drm.h
@@ -28,9 +28,13 @@
 #include <stddef.h>
 #include "drm.h"
 
+#if defined(__cplusplus)
+extern "C" {
+#endif
+
 /* Please note that modifications to all structs defined here are
  * subject to backwards-compatibility constraints:
- *  1) Do not use pointers, use uint64_t instead for 32 bit / 64 bit
+ *  1) Do not use pointers, use __u64 instead for 32 bit / 64 bit
  *     user/kernel compatibility
  *  2) Keep fields aligned to their size
  *  3) Because of how drm_ioctl() works, we can add new fields at
@@ -51,8 +55,8 @@
  * same as 'struct timespec' but 32/64b ABI safe.
  */
 struct drm_msm_timespec {
-	int64_t tv_sec;          /* seconds */
-	int64_t tv_nsec;         /* nanoseconds */
+	__s64 tv_sec;          /* seconds */
+	__s64 tv_nsec;         /* nanoseconds */
 };
 
 #define MSM_PARAM_GPU_ID     0x01
@@ -62,9 +66,9 @@ struct drm_msm_timespec {
 #define MSM_PARAM_TIMESTAMP  0x05
 
 struct drm_msm_param {
-	uint32_t pipe;           /* in, MSM_PIPE_x */
-	uint32_t param;          /* in, MSM_PARAM_x */
-	uint64_t value;          /* out (get_param) or in (set_param) */
+	__u32 pipe;           /* in, MSM_PIPE_x */
+	__u32 param;          /* in, MSM_PARAM_x */
+	__u64 value;          /* out (get_param) or in (set_param) */
 };
 
 /*
@@ -86,15 +90,15 @@ struct drm_msm_param {
                               MSM_BO_UNCACHED)
 
 struct drm_msm_gem_new {
-	uint64_t size;           /* in */
-	uint32_t flags;          /* in, mask of MSM_BO_x */
-	uint32_t handle;         /* out */
+	__u64 size;           /* in */
+	__u32 flags;          /* in, mask of MSM_BO_x */
+	__u32 handle;         /* out */
 };
 
 struct drm_msm_gem_info {
-	uint32_t handle;         /* in */
-	uint32_t pad;
-	uint64_t offset;         /* out, offset to pass to mmap() */
+	__u32 handle;         /* in */
+	__u32 pad;
+	__u64 offset;         /* out, offset to pass to mmap() */
 };
 
 #define MSM_PREP_READ        0x01
@@ -104,13 +108,13 @@ struct drm_msm_gem_info {
 #define MSM_PREP_FLAGS       (MSM_PREP_READ | MSM_PREP_WRITE | MSM_PREP_NOSYNC)
 
 struct drm_msm_gem_cpu_prep {
-	uint32_t handle;         /* in */
-	uint32_t op;             /* in, mask of MSM_PREP_x */
+	__u32 handle;         /* in */
+	__u32 op;             /* in, mask of MSM_PREP_x */
 	struct drm_msm_timespec timeout;   /* in */
 };
 
 struct drm_msm_gem_cpu_fini {
-	uint32_t handle;         /* in */
+	__u32 handle;         /* in */
 };
 
 /*
@@ -129,11 +133,11 @@ struct drm_msm_gem_cpu_fini {
  * otherwise EINVAL.
  */
 struct drm_msm_gem_submit_reloc {
-	uint32_t submit_offset;  /* in, offset from submit_bo */
-	uint32_t or;             /* in, value OR'd with result */
-	int32_t  shift;          /* in, amount of left shift (can be negative) */
-	uint32_t reloc_idx;      /* in, index of reloc_bo buffer */
-	uint64_t reloc_offset;   /* in, offset from start of reloc_bo */
+	__u32 submit_offset;  /* in, offset from submit_bo */
+	__u32 or;             /* in, value OR'd with result */
+	__s32 shift;          /* in, amount of left shift (can be negative) */
+	__u32 reloc_idx;      /* in, index of reloc_bo buffer */
+	__u64 reloc_offset;   /* in, offset from start of reloc_bo */
 };
 
 /* submit-types:
@@ -148,13 +152,13 @@ struct drm_msm_gem_submit_reloc {
 #define MSM_SUBMIT_CMD_IB_TARGET_BUF   0x0002
 #define MSM_SUBMIT_CMD_CTX_RESTORE_BUF 0x0003
 struct drm_msm_gem_submit_cmd {
-	uint32_t type;           /* in, one of MSM_SUBMIT_CMD_x */
-	uint32_t submit_idx;     /* in, index of submit_bo cmdstream buffer */
-	uint32_t submit_offset;  /* in, offset into submit_bo */
-	uint32_t size;           /* in, cmdstream size */
-	uint32_t pad;
-	uint32_t nr_relocs;      /* in, number of submit_reloc's */
-	uint64_t __user relocs;  /* in, ptr to array of submit_reloc's */
+	__u32 type;           /* in, one of MSM_SUBMIT_CMD_x */
+	__u32 submit_idx;     /* in, index of submit_bo cmdstream buffer */
+	__u32 submit_offset;  /* in, offset into submit_bo */
+	__u32 size;           /* in, cmdstream size */
+	__u32 pad;
+	__u32 nr_relocs;      /* in, number of submit_reloc's */
+	__u64 __user relocs;  /* in, ptr to array of submit_reloc's */
 };
 
 /* Each buffer referenced elsewhere in the cmdstream submit (ie. the
@@ -174,9 +178,9 @@ struct drm_msm_gem_submit_cmd {
 #define MSM_SUBMIT_BO_FLAGS            (MSM_SUBMIT_BO_READ | MSM_SUBMIT_BO_WRITE)
 
 struct drm_msm_gem_submit_bo {
-	uint32_t flags;          /* in, mask of MSM_SUBMIT_BO_x */
-	uint32_t handle;         /* in, GEM handle */
-	uint64_t presumed;       /* in/out, presumed buffer address */
+	__u32 flags;          /* in, mask of MSM_SUBMIT_BO_x */
+	__u32 handle;         /* in, GEM handle */
+	__u64 presumed;       /* in/out, presumed buffer address */
 };
 
 /* Each cmdstream submit consists of a table of buffers involved, and
@@ -184,12 +188,12 @@ struct drm_msm_gem_submit_bo {
  * (context-restore), and IB buffers needed for per tile/bin draw cmds.
  */
 struct drm_msm_gem_submit {
-	uint32_t pipe;           /* in, MSM_PIPE_x */
-	uint32_t fence;          /* out */
-	uint32_t nr_bos;         /* in, number of submit_bo's */
-	uint32_t nr_cmds;        /* in, number of submit_cmd's */
-	uint64_t __user bos;     /* in, ptr to array of submit_bo's */
-	uint64_t __user cmds;    /* in, ptr to array of submit_cmd's */
+	__u32 pipe;           /* in, MSM_PIPE_x */
+	__u32 fence;          /* out */
+	__u32 nr_bos;         /* in, number of submit_bo's */
+	__u32 nr_cmds;        /* in, number of submit_cmd's */
+	__u64 __user bos;     /* in, ptr to array of submit_bo's */
+	__u64 __user cmds;    /* in, ptr to array of submit_cmd's */
 };
 
 /* The normal way to synchronize with the GPU is just to CPU_PREP on
@@ -200,11 +204,32 @@ struct drm_msm_gem_submit {
  * APIs without requiring a dummy bo to synchronize on.
  */
 struct drm_msm_wait_fence {
-	uint32_t fence;          /* in */
-	uint32_t pad;
+	__u32 fence;          /* in */
+	__u32 pad;
 	struct drm_msm_timespec timeout;   /* in */
 };
 
+/* madvise provides a way to tell the kernel in case a buffers contents
+ * can be discarded under memory pressure, which is useful for userspace
+ * bo cache where we want to optimistically hold on to buffer allocate
+ * and potential mmap, but allow the pages to be discarded under memory
+ * pressure.
+ *
+ * Typical usage would involve madvise(DONTNEED) when buffer enters BO
+ * cache, and madvise(WILLNEED) if trying to recycle buffer from BO cache.
+ * In the WILLNEED case, 'retained' indicates to userspace whether the
+ * backing pages still exist.
+ */
+#define MSM_MADV_WILLNEED 0       /* backing pages are needed, status returned in 'retained' */
+#define MSM_MADV_DONTNEED 1       /* backing pages not needed */
+#define __MSM_MADV_PURGED 2       /* internal state */
+
+struct drm_msm_gem_madvise {
+	__u32 handle;         /* in, GEM handle */
+	__u32 madv;           /* in, MSM_MADV_x */
+	__u32 retained;       /* out, whether backing store still exists */
+};
+
 #define DRM_MSM_GET_PARAM              0x00
 /* placeholder:
 #define DRM_MSM_SET_PARAM              0x01
@@ -215,7 +240,8 @@ struct drm_msm_wait_fence {
 #define DRM_MSM_GEM_CPU_FINI           0x05
 #define DRM_MSM_GEM_SUBMIT             0x06
 #define DRM_MSM_WAIT_FENCE             0x07
-#define DRM_MSM_NUM_IOCTLS             0x08
+#define DRM_MSM_GEM_MADVISE            0x08
+#define DRM_MSM_NUM_IOCTLS             0x09
 
 #define DRM_IOCTL_MSM_GET_PARAM        DRM_IOWR(DRM_COMMAND_BASE + DRM_MSM_GET_PARAM, struct drm_msm_param)
 #define DRM_IOCTL_MSM_GEM_NEW          DRM_IOWR(DRM_COMMAND_BASE + DRM_MSM_GEM_NEW, struct drm_msm_gem_new)
@@ -224,5 +250,10 @@ struct drm_msm_wait_fence {
 #define DRM_IOCTL_MSM_GEM_CPU_FINI     DRM_IOW (DRM_COMMAND_BASE + DRM_MSM_GEM_CPU_FINI, struct drm_msm_gem_cpu_fini)
 #define DRM_IOCTL_MSM_GEM_SUBMIT       DRM_IOWR(DRM_COMMAND_BASE + DRM_MSM_GEM_SUBMIT, struct drm_msm_gem_submit)
 #define DRM_IOCTL_MSM_WAIT_FENCE       DRM_IOW (DRM_COMMAND_BASE + DRM_MSM_WAIT_FENCE, struct drm_msm_wait_fence)
+#define DRM_IOCTL_MSM_GEM_MADVISE      DRM_IOWR(DRM_COMMAND_BASE + DRM_MSM_GEM_MADVISE, struct drm_msm_gem_madvise)
+
+#if defined(__cplusplus)
+}
+#endif
 
 #endif /* __MSM_DRM_H__ */