[RFC 03/22] drm/i915: Hook command parser tables up to rings

[bradley.d.volkin@xxxxxxxxx]

From: Brad Volkin <bradley.d.volkin@xxxxxxxxx>

OTC-Tracker: AXIA-4631
Change-Id: Id178f67338d00c23ca4e8fc9499313dba93d2c5c
Signed-off-by: Brad Volkin <bradley.d.volkin@xxxxxxxxx>
---
 drivers/gpu/drm/i915/i915_cmd_parser.c  | 34 +++++++++++++++++++++++++++++++++
 drivers/gpu/drm/i915/i915_drv.h         |  3 +++
 drivers/gpu/drm/i915/intel_ringbuffer.c |  2 ++
 drivers/gpu/drm/i915/intel_ringbuffer.h |  7 +++++++
 4 files changed, 46 insertions(+)

diff --git a/drivers/gpu/drm/i915/i915_cmd_parser.c b/drivers/gpu/drm/i915/i915_cmd_parser.c
index deb77c8c..014e661 100644
--- a/drivers/gpu/drm/i915/i915_cmd_parser.c
+++ b/drivers/gpu/drm/i915/i915_cmd_parser.c
@@ -136,3 +136,37 @@ static const struct drm_i915_cmd_table gen7_blt_cmds[] = {
 	{ common_cmds, ARRAY_SIZE(common_cmds) },
 	{ blt_cmds, ARRAY_SIZE(blt_cmds) },
 };
+
+void i915_cmd_parser_init_ring(struct intel_ring_buffer *ring)
+{
+	if (!IS_GEN7(ring->dev))
+		return;
+
+	switch (ring->id) {
+	case RCS:
+		if (IS_HASWELL(ring->dev)) {
+			ring->cmd_tables = hsw_render_ring_cmds;
+			ring->cmd_table_count =
+				ARRAY_SIZE(hsw_render_ring_cmds);
+		} else {
+			ring->cmd_tables = gen7_render_cmds;
+			ring->cmd_table_count = ARRAY_SIZE(gen7_render_cmds);
+		}
+		break;
+	case VCS:
+		ring->cmd_tables = gen7_video_cmds;
+		ring->cmd_table_count = ARRAY_SIZE(gen7_video_cmds);
+		break;
+	case BCS:
+		ring->cmd_tables = gen7_blt_cmds;
+		ring->cmd_table_count = ARRAY_SIZE(gen7_blt_cmds);
+		break;
+	case VECS:
+		ring->cmd_tables = hsw_vebox_cmds;
+		ring->cmd_table_count = ARRAY_SIZE(hsw_vebox_cmds);
+		break;
+	default:
+		DRM_DEBUG("CMD: cmd_parser_init with unknown ring: %d\n",
+			  ring->id);
+	}
+}
diff --git a/drivers/gpu/drm/i915/i915_drv.h b/drivers/gpu/drm/i915/i915_drv.h
index ff1e201..7de4e59 100644
--- a/drivers/gpu/drm/i915/i915_drv.h
+++ b/drivers/gpu/drm/i915/i915_drv.h
@@ -2372,6 +2372,9 @@ void i915_destroy_error_state(struct drm_device *dev);
 void i915_get_extra_instdone(struct drm_device *dev, uint32_t *instdone);
 const char *i915_cache_level_str(int type);
 
+/* i915_cmd_parser.c */
+void i915_cmd_parser_init_ring(struct intel_ring_buffer *ring);
+
 /* i915_suspend.c */
 extern int i915_save_state(struct drm_device *dev);
 extern int i915_restore_state(struct drm_device *dev);
diff --git a/drivers/gpu/drm/i915/intel_ringbuffer.c b/drivers/gpu/drm/i915/intel_ringbuffer.c
index 69589e4..553b889 100644
--- a/drivers/gpu/drm/i915/intel_ringbuffer.c
+++ b/drivers/gpu/drm/i915/intel_ringbuffer.c
@@ -1382,6 +1382,8 @@ static int intel_init_ring_buffer(struct drm_device *dev,
 	if (IS_I830(ring->dev) || IS_845G(ring->dev))
 		ring->effective_size -= 128;
 
+	i915_cmd_parser_init_ring(ring);
+
 	return 0;
 
 err_unmap:
diff --git a/drivers/gpu/drm/i915/intel_ringbuffer.h b/drivers/gpu/drm/i915/intel_ringbuffer.h
index 71a73f4..67305d3 100644
--- a/drivers/gpu/drm/i915/intel_ringbuffer.h
+++ b/drivers/gpu/drm/i915/intel_ringbuffer.h
@@ -162,6 +162,13 @@ struct  intel_ring_buffer {
 		u32 gtt_offset;
 		volatile u32 *cpu_page;
 	} scratch;
+
+	/**
+	 * Tables of commands the command parser needs to know about
+	 * for this ring.
+	 */
+	const struct drm_i915_cmd_table *cmd_tables;
+	int cmd_table_count;
 };
 
 static inline bool
-- 
1.8.4.4

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