intel: Prepare for BLT ring split.

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>

diff --git a/include/drm/i915_drm.h b/include/drm/i915_drm.h
index 7594413..bd93061 100644 (file)
--- a/include/drm/i915_drm.h
+++ b/include/drm/i915_drm.h
@@ -206,6 +206,7 @@ typedef struct _drm_i915_sarea {
 #define DRM_IOCTL_I915_SET_VBLANK_PIPE DRM_IOW( DRM_COMMAND_BASE + DRM_I915_SET_VBLANK_PIPE, drm_i915_vblank_pipe_t)
 #define DRM_IOCTL_I915_GET_VBLANK_PIPE DRM_IOR( DRM_COMMAND_BASE + DRM_I915_GET_VBLANK_PIPE, drm_i915_vblank_pipe_t)
 #define DRM_IOCTL_I915_VBLANK_SWAP     DRM_IOWR(DRM_COMMAND_BASE + DRM_I915_VBLANK_SWAP, drm_i915_vblank_swap_t)
+#define DRM_IOCTL_I915_HWS_ADDR                DRM_IOW(DRM_COMMAND_BASE + DRM_I915_HWS_ADDR, struct drm_i915_gem_init)
 #define DRM_IOCTL_I915_GEM_INIT                DRM_IOW(DRM_COMMAND_BASE + DRM_I915_GEM_INIT, struct drm_i915_gem_init)
 #define DRM_IOCTL_I915_GEM_EXECBUFFER  DRM_IOW(DRM_COMMAND_BASE + DRM_I915_GEM_EXECBUFFER, struct drm_i915_gem_execbuffer)
 #define DRM_IOCTL_I915_GEM_EXECBUFFER2 DRM_IOW(DRM_COMMAND_BASE + DRM_I915_GEM_EXECBUFFER2, struct drm_i915_gem_execbuffer2)
@@ -276,6 +277,7 @@ typedef struct drm_i915_irq_wait {
 #define I915_PARAM_HAS_PAGEFLIPPING     8
 #define I915_PARAM_HAS_EXECBUF2          9
 #define I915_PARAM_HAS_BSD              10
+#define I915_PARAM_HAS_BLT              11
 
 typedef struct drm_i915_getparam {
        int param;
@@ -617,8 +619,11 @@ struct drm_i915_gem_execbuffer2 {
        __u32 num_cliprects;
        /** This is a struct drm_clip_rect *cliprects */
        __u64 cliprects_ptr;
+#define I915_EXEC_RING_MASK              (7<<0)
+#define I915_EXEC_DEFAULT                (0<<0)
 #define I915_EXEC_RENDER                 (1<<0)
-#define I915_EXEC_BSD                    (1<<1)
+#define I915_EXEC_BSD                    (2<<0)
+#define I915_EXEC_BLT                    (3<<0)
        __u64 flags;
        __u64 rsvd1;
        __u64 rsvd2;

diff --git a/intel/intel_bufmgr_gem.c b/intel/intel_bufmgr_gem.c
index 60174e1..c5847a8 100644 (file)
--- a/intel/intel_bufmgr_gem.c
+++ b/intel/intel_bufmgr_gem.c
@@ -99,6 +99,8 @@ typedef struct _drm_intel_bufmgr_gem {
        int available_fences;
        int pci_device;
        int gen;
+       char has_bsd;
+       char has_blt;
        char bo_reuse;
        char fenced_relocs;
 } drm_intel_bufmgr_gem;
@@ -1545,8 +1547,21 @@ drm_intel_gem_bo_mrb_exec2(drm_intel_bo *bo, int used,
        struct drm_i915_gem_execbuffer2 execbuf;
        int ret, i;
 
-       if ((ring_flag != I915_EXEC_RENDER) && (ring_flag != I915_EXEC_BSD))
+       switch (ring_flag) {
+       default:
                return -EINVAL;
+       case I915_EXEC_BLT:
+               if (!bufmgr_gem->has_blt)
+                       return -EINVAL;
+               break;
+       case I915_EXEC_BSD:
+               if (!bufmgr_gem->has_bsd)
+                       return -EINVAL;
+               break;
+       case I915_EXEC_RENDER:
+       case I915_EXEC_DEFAULT:
+               break;
+       }
 
        pthread_mutex_lock(&bufmgr_gem->lock);
        /* Update indices and set up the validate list. */
@@ -2054,7 +2069,7 @@ drm_intel_bufmgr_gem_init(int fd, int batch_size)
        struct drm_i915_gem_get_aperture aperture;
        drm_i915_getparam_t gp;
        int ret;
-       int exec2 = 0, has_bsd = 0;
+       int exec2 = 0;
 
        bufmgr_gem = calloc(1, sizeof(*bufmgr_gem));
        if (bufmgr_gem == NULL)
@@ -2107,8 +2122,11 @@ drm_intel_bufmgr_gem_init(int fd, int batch_size)
 
        gp.param = I915_PARAM_HAS_BSD;
        ret = drmIoctl(bufmgr_gem->fd, DRM_IOCTL_I915_GETPARAM, &gp);
-       if (!ret)
-               has_bsd = 1;
+       bufmgr_gem->has_bsd = ret == 0;
+
+       gp.param = I915_PARAM_HAS_BLT;
+       ret = drmIoctl(bufmgr_gem->fd, DRM_IOCTL_I915_GETPARAM, &gp);
+       bufmgr_gem->has_blt = ret == 0;
 
        if (bufmgr_gem->gen < 4) {
                gp.param = I915_PARAM_NUM_FENCES_AVAIL;
@@ -2165,7 +2183,7 @@ drm_intel_bufmgr_gem_init(int fd, int batch_size)
        /* Use the new one if available */
        if (exec2) {
                bufmgr_gem->bufmgr.bo_exec = drm_intel_gem_bo_exec2;
-               if (has_bsd)
+               if (bufmgr_gem->has_bsd|bufmgr_gem->has_blt)
                        bufmgr_gem->bufmgr.bo_mrb_exec = drm_intel_gem_bo_mrb_exec2;
        } else
                bufmgr_gem->bufmgr.bo_exec = drm_intel_gem_bo_exec;