From: Roland Scheidegger <sroland@xxxxxxxxxx>
This adds support for the
SVGA_3D_CMD_DX_SET_VS/PS/GS/HS/DS/CS_CONSTANT_BUFFER_OFFSET commands (which only update
the offset, but don't rebind the buffer), which saves some overhead.
Signed-off-by: Roland Scheidegger <sroland@xxxxxxxxxx>
Reviewed-by: Charmaine Lee <charmainel@xxxxxxxxxx>
Reviewed-by: Martin Krastev <krastevm@xxxxxxxxxx>
Signed-off-by: Zack Rusin <zackr@xxxxxxxxxx>
---
drivers/gpu/drm/vmwgfx/vmwgfx_binding.c | 21 ++++++++++
drivers/gpu/drm/vmwgfx/vmwgfx_binding.h | 2 +
drivers/gpu/drm/vmwgfx/vmwgfx_execbuf.c | 56 +++++++++++++++++++++++++
3 files changed, 79 insertions(+)
diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_binding.c b/drivers/gpu/drm/vmwgfx/vmwgfx_binding.c
index 9aa69ba85670..ae2de914eb89 100644
--- a/drivers/gpu/drm/vmwgfx/vmwgfx_binding.c
+++ b/drivers/gpu/drm/vmwgfx/vmwgfx_binding.c
@@ -353,6 +353,27 @@ void vmw_binding_add(struct vmw_ctx_binding_state *cbs,
INIT_LIST_HEAD(&loc->res_list);
}
+/**
+ * vmw_binding_cb_offset_update: Update the offset of a cb binding
+ *
+ * @cbs: Pointer to the context binding state tracker.
+ * @shader_slot: The shader slot of the binding.
+ * @slot: The slot of the binding.
+ * @offsetInBytes: The new offset of the binding.
+ *
+ * Updates the offset of an existing cb binding in the context binding
+ * state structure @cbs.
+ */
+void vmw_binding_cb_offset_update(struct vmw_ctx_binding_state *cbs,
+ u32 shader_slot, u32 slot, u32 offsetInBytes)
+{
+ struct vmw_ctx_bindinfo *loc =
+ vmw_binding_loc(cbs, vmw_ctx_binding_cb, shader_slot, slot);
+ struct vmw_ctx_bindinfo_cb *loc_cb =
+ (struct vmw_ctx_bindinfo_cb *)((u8 *) loc);
+ loc_cb->offset = offsetInBytes;
+}
+
/**
* vmw_binding_add_uav_index - Add UAV index for tracking.
* @cbs: Pointer to the context binding state tracker.
diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_binding.h b/drivers/gpu/drm/vmwgfx/vmwgfx_binding.h
index 6b1b234d12a1..85b90f7d398d 100644
--- a/drivers/gpu/drm/vmwgfx/vmwgfx_binding.h
+++ b/drivers/gpu/drm/vmwgfx/vmwgfx_binding.h
@@ -217,6 +217,8 @@ struct vmw_ctx_bindinfo_so {
extern void vmw_binding_add(struct vmw_ctx_binding_state *cbs,
const struct vmw_ctx_bindinfo *ci,
u32 shader_slot, u32 slot);
+extern void vmw_binding_cb_offset_update(struct vmw_ctx_binding_state *cbs,
+ u32 shader_slot, u32 slot, u32 offsetInBytes);
extern void vmw_binding_add_uav_index(struct vmw_ctx_binding_state *cbs,
uint32 slot, uint32 splice_index);
extern void
diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_execbuf.c b/drivers/gpu/drm/vmwgfx/vmwgfx_execbuf.c
index fd204fe2c68f..44ca23b0ea4e 100644
--- a/drivers/gpu/drm/vmwgfx/vmwgfx_execbuf.c
+++ b/drivers/gpu/drm/vmwgfx/vmwgfx_execbuf.c
@@ -2163,6 +2163,44 @@ vmw_cmd_dx_set_single_constant_buffer(struct vmw_private *dev_priv,
return 0;
}
+/**
+ * vmw_cmd_dx_set_constant_buffer_offset - Validate
+ * SVGA_3D_CMD_DX_SET_VS/PS/GS/HS/DS/CS_CONSTANT_BUFFER_OFFSET command.
+ *
+ * @dev_priv: Pointer to a device private struct.
+ * @sw_context: The software context being used for this batch.
+ * @header: Pointer to the command header in the command stream.
+ */
+static int
+vmw_cmd_dx_set_constant_buffer_offset(struct vmw_private *dev_priv,
+ struct vmw_sw_context *sw_context,
+ SVGA3dCmdHeader *header)
+{
+ VMW_DECLARE_CMD_VAR(*cmd, SVGA3dCmdDXSetConstantBufferOffset);
+
+ struct vmw_ctx_validation_info *ctx_node = VMW_GET_CTX_NODE(sw_context);
+ u32 shader_slot;
+
+ if (!has_sm5_context(dev_priv))
+ return -EINVAL;
+
+ if (!ctx_node)
+ return -EINVAL;
+
+ cmd = container_of(header, typeof(*cmd), header);
+ if (cmd->body.slot >= SVGA3D_DX_MAX_CONSTBUFFERS) {
+ VMW_DEBUG_USER("Illegal const buffer slot %u.\n",
+ (unsigned int) cmd->body.slot);
+ return -EINVAL;
+ }
+
+ shader_slot = cmd->header.id - SVGA_3D_CMD_DX_SET_VS_CONSTANT_BUFFER_OFFSET;
+ vmw_binding_cb_offset_update(ctx_node->staged, shader_slot,
+ cmd->body.slot, cmd->body.offsetInBytes);
+
+ return 0;
+}
+
/**
* vmw_cmd_dx_set_shader_res - Validate SVGA_3D_CMD_DX_SET_SHADER_RESOURCES
* command
@@ -3526,6 +3564,24 @@ static const struct vmw_cmd_entry vmw_cmd_entries[SVGA_3D_CMD_MAX] = {
VMW_CMD_DEF(SVGA_3D_CMD_DX_TRANSFER_FROM_BUFFER,
&vmw_cmd_dx_transfer_from_buffer,
true, false, true),
+ VMW_CMD_DEF(SVGA_3D_CMD_DX_SET_VS_CONSTANT_BUFFER_OFFSET,
+ &vmw_cmd_dx_set_constant_buffer_offset,
+ true, false, true),
+ VMW_CMD_DEF(SVGA_3D_CMD_DX_SET_PS_CONSTANT_BUFFER_OFFSET,
+ &vmw_cmd_dx_set_constant_buffer_offset,
+ true, false, true),
+ VMW_CMD_DEF(SVGA_3D_CMD_DX_SET_GS_CONSTANT_BUFFER_OFFSET,
+ &vmw_cmd_dx_set_constant_buffer_offset,
+ true, false, true),
+ VMW_CMD_DEF(SVGA_3D_CMD_DX_SET_HS_CONSTANT_BUFFER_OFFSET,
+ &vmw_cmd_dx_set_constant_buffer_offset,
+ true, false, true),
+ VMW_CMD_DEF(SVGA_3D_CMD_DX_SET_DS_CONSTANT_BUFFER_OFFSET,
+ &vmw_cmd_dx_set_constant_buffer_offset,
+ true, false, true),
+ VMW_CMD_DEF(SVGA_3D_CMD_DX_SET_CS_CONSTANT_BUFFER_OFFSET,
+ &vmw_cmd_dx_set_constant_buffer_offset,
+ true, false, true),
VMW_CMD_DEF(SVGA_3D_CMD_INTRA_SURFACE_COPY, &vmw_cmd_intra_surface_copy,
true, false, true),
--
2.32.0
