drm/amd: add ACP driver support

This adds the ACP (Audio CoProcessor) IP driver and wires
it up to the amdgpu driver.  The ACP block provides the DMA
engine for i2s based ALSA driver. This is required for audio
on APUs that utilize an i2s codec.

Reviewed-by: Jammy Zhou <Jammy.Zhou@amd.com>
Reviewed-by: Maruthi Bayyavarapu <maruthi.bayyavarapu@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Reviewed-by: Murali Krishna Vemuri <murali-krishna.vemuri@amd.com>
Signed-off-by: Maruthi Bayyavarapu <maruthi.bayyavarapu@amd.com>
Signed-off-by: Chunming Zhou <david1.zhou@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

1 files changed, 12 insertions, 0 deletions

diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu.h b/drivers/gpu/drm/amd/amdgpu/amdgpu.h
index 1529e0aecb83..2309c8b88ae7 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu.h
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu.h
@@ -53,6 +53,7 @@
 #include "amdgpu_ucode.h"
 #include "amdgpu_gds.h"
 #include "amd_powerplay.h"
+#include "amdgpu_acp.h"
 
 #include "gpu_scheduler.h"
 
@@ -1891,6 +1892,13 @@ void amdgpu_cgs_destroy_device(void *cgs_device);
 
 
 /*
+ * CGS
+ */
+void *amdgpu_cgs_create_device(struct amdgpu_device *adev);
+void amdgpu_cgs_destroy_device(void *cgs_device);
+
+
+/*
  * Core structure, functions and helpers.
  */
 typedef uint32_t (*amdgpu_rreg_t)(struct amdgpu_device*, uint32_t);
@@ -1910,6 +1918,10 @@ struct amdgpu_device {
         struct drm_device               *ddev;
         struct pci_dev                  *pdev;
 
+#ifdef CONFIG_DRM_AMD_ACP
+        struct amdgpu_acp               acp;
+#endif
+
         /* ASIC */
         enum amd_asic_type              asic_type;
         uint32_t                        family;