intel: Add support for kernel multi-ringbuffer API.

This introduces a new API to exec on BSD ring buffer, for H.264 VLD
decoding.

Signed-off-by: Xiang Hai hao <haihao.xiang@intel.com>
Signed-off-by: Zou Nan hai <nanhai.zou@intel.com>

diff --git a/include/drm/i915_drm.h b/include/drm/i915_drm.h
index c8cb3a67eeb6ab00c611944912d28dd15c0733b2..c040afac5409dc6a3d79ecff56512dac4cc6c67f 100644 (file)
--- a/include/drm/i915_drm.h
+++ b/include/drm/i915_drm.h
@@ -275,6 +275,7 @@ typedef struct drm_i915_irq_wait {
 #define I915_PARAM_HAS_OVERLAY           7
 #define I915_PARAM_HAS_PAGEFLIPPING     8
 #define I915_PARAM_HAS_EXECBUF2          9
+#define I915_PARAM_HAS_BSD              10
 
 typedef struct drm_i915_getparam {
        int param;
@@ -616,7 +617,9 @@ struct drm_i915_gem_execbuffer2 {
        __u32 num_cliprects;
        /** This is a struct drm_clip_rect *cliprects */
        __u64 cliprects_ptr;
-       __u64 flags; /* currently unused */
+#define I915_EXEC_RENDER               (1 << 0)
+#define I915_EXEC_BSD                  (1 << 1)
+       __u64 flags;
        __u64 rsvd1;
        __u64 rsvd2;
 };

diff --git a/intel/intel_bufmgr.c b/intel/intel_bufmgr.c
index 9144fdd4732dc3eb4fd0ad1a84920468fadf5603..2b4e888304d42e6a4ab0bf6a638fc172198ef1e2 100644 (file)
--- a/intel/intel_bufmgr.c
+++ b/intel/intel_bufmgr.c
@@ -145,6 +145,19 @@ drm_intel_bo_exec(drm_intel_bo *bo, int used,
        return bo->bufmgr->bo_exec(bo, used, cliprects, num_cliprects, DR4);
 }
 
+int
+drm_intel_bo_mrb_exec(drm_intel_bo *bo, int used,
+               drm_clip_rect_t *cliprects, int num_cliprects, int DR4,
+               int ring_flag)
+{
+       if (bo->bufmgr->bo_mrb_exec)
+               return bo->bufmgr->bo_mrb_exec(bo, used,
+                                       cliprects, num_cliprects, DR4,
+                                       ring_flag);
+
+       return -ENODEV;
+}
+
 void drm_intel_bufmgr_set_debug(drm_intel_bufmgr *bufmgr, int enable_debug)
 {
        bufmgr->debug = enable_debug;

diff --git a/intel/intel_bufmgr.h b/intel/intel_bufmgr.h
index cbcddb651f2b0c4dd12b6420c14493cc8a9061db..65fd603a4723b73f8ab643c3b19a80336734f2c6 100644 (file)
--- a/intel/intel_bufmgr.h
+++ b/intel/intel_bufmgr.h
@@ -106,6 +106,9 @@ void drm_intel_bufmgr_set_debug(drm_intel_bufmgr *bufmgr, int enable_debug);
 void drm_intel_bufmgr_destroy(drm_intel_bufmgr *bufmgr);
 int drm_intel_bo_exec(drm_intel_bo *bo, int used,
                      drm_clip_rect_t * cliprects, int num_cliprects, int DR4);
+int drm_intel_bo_mrb_exec(drm_intel_bo *bo, int used,
+                       drm_clip_rect_t *cliprects, int num_cliprects, int DR4,
+                       int ring_flag);
 int drm_intel_bufmgr_check_aperture_space(drm_intel_bo ** bo_array, int count);
 
 int drm_intel_bo_emit_reloc(drm_intel_bo *bo, uint32_t offset,

diff --git a/intel/intel_bufmgr_gem.c b/intel/intel_bufmgr_gem.c
index b76fd7ed79bcbe3fc6e3bb46d12d281b44e4aa73..398c7d074f24b8b035f1bd00e3950cae70e8f9c8 100644 (file)
--- a/intel/intel_bufmgr_gem.c
+++ b/intel/intel_bufmgr_gem.c
@@ -1530,14 +1530,17 @@ drm_intel_gem_bo_exec(drm_intel_bo *bo, int used,
 }
 
 static int
-drm_intel_gem_bo_exec2(drm_intel_bo *bo, int used,
-                      drm_clip_rect_t *cliprects, int num_cliprects,
-                      int DR4)
+drm_intel_gem_bo_mrb_exec2(drm_intel_bo *bo, int used,
+                       drm_clip_rect_t *cliprects, int num_cliprects, int DR4,
+                       int ring_flag)
 {
        drm_intel_bufmgr_gem *bufmgr_gem = (drm_intel_bufmgr_gem *)bo->bufmgr;
        struct drm_i915_gem_execbuffer2 execbuf;
        int ret, i;
 
+       if ((ring_flag != I915_EXEC_RENDER) && (ring_flag != I915_EXEC_BSD))
+               return -EINVAL;
+
        pthread_mutex_lock(&bufmgr_gem->lock);
        /* Update indices and set up the validate list. */
        drm_intel_gem_bo_process_reloc2(bo);
@@ -1555,7 +1558,7 @@ drm_intel_gem_bo_exec2(drm_intel_bo *bo, int used,
        execbuf.num_cliprects = num_cliprects;
        execbuf.DR1 = 0;
        execbuf.DR4 = DR4;
-       execbuf.flags = 0;
+       execbuf.flags = ring_flag;
        execbuf.rsvd1 = 0;
        execbuf.rsvd2 = 0;
 
@@ -1596,6 +1599,16 @@ drm_intel_gem_bo_exec2(drm_intel_bo *bo, int used,
        return ret;
 }
 
+static int
+drm_intel_gem_bo_exec2(drm_intel_bo *bo, int used,
+                      drm_clip_rect_t *cliprects, int num_cliprects,
+                      int DR4)
+{
+       return drm_intel_gem_bo_mrb_exec2(bo, used,
+                                       cliprects, num_cliprects, DR4,
+                                       I915_EXEC_RENDER);
+}
+
 static int
 drm_intel_gem_bo_pin(drm_intel_bo *bo, uint32_t alignment)
 {
@@ -1974,7 +1987,7 @@ drm_intel_bufmgr_gem_init(int fd, int batch_size)
        drm_i915_getparam_t gp;
        int ret, i;
        unsigned long size;
-       int exec2 = 0;
+       int exec2 = 0, has_bsd = 0;
 
        bufmgr_gem = calloc(1, sizeof(*bufmgr_gem));
        if (bufmgr_gem == NULL)
@@ -2023,6 +2036,11 @@ drm_intel_bufmgr_gem_init(int fd, int batch_size)
        if (!ret)
                exec2 = 1;
 
+       gp.param = I915_PARAM_HAS_BSD;
+       ret = ioctl(bufmgr_gem->fd, DRM_IOCTL_I915_GETPARAM, &gp);
+       if (!ret)
+               has_bsd = 1;
+
        if (bufmgr_gem->gen < 4) {
                gp.param = I915_PARAM_NUM_FENCES_AVAIL;
                gp.value = &bufmgr_gem->available_fences;
@@ -2076,9 +2094,11 @@ drm_intel_bufmgr_gem_init(int fd, int batch_size)
        bufmgr_gem->bufmgr.bo_set_tiling = drm_intel_gem_bo_set_tiling;
        bufmgr_gem->bufmgr.bo_flink = drm_intel_gem_bo_flink;
        /* Use the new one if available */
-       if (exec2)
+       if (exec2) {
                bufmgr_gem->bufmgr.bo_exec = drm_intel_gem_bo_exec2;
-       else
+               if (has_bsd)
+                       bufmgr_gem->bufmgr.bo_mrb_exec = drm_intel_gem_bo_mrb_exec2;
+       } else
                bufmgr_gem->bufmgr.bo_exec = drm_intel_gem_bo_exec;
        bufmgr_gem->bufmgr.bo_busy = drm_intel_gem_bo_busy;
        bufmgr_gem->bufmgr.bo_madvise = drm_intel_gem_bo_madvise;

diff --git a/intel/intel_bufmgr_priv.h b/intel/intel_bufmgr_priv.h
index f987d97afa5750e444a9a6cd43d85228411aefb4..87e91e7f7aef61b2a013bd20f274b9a0057c6003 100644 (file)
--- a/intel/intel_bufmgr_priv.h
+++ b/intel/intel_bufmgr_priv.h
@@ -173,6 +173,13 @@ struct _drm_intel_bufmgr {
                        drm_clip_rect_t *cliprects, int num_cliprects,
                        int DR4);
 
+       /** Executes the command buffer pointed to by bo on the selected
+        * ring buffer
+        */
+       int (*bo_mrb_exec) (drm_intel_bo *bo, int used,
+                       drm_clip_rect_t *cliprects, int num_cliprects,
+                       int DR4, int ring_flag);
+
        /**
         * Pin a buffer to the aperture and fix the offset until unpinned
         *