drm/amdgpu: Add XCP functions for GFX v9.4.3

Add functions to suspend/resume GFX instances belonging to an XCP.

Signed-off-by: Lijo Lazar <lijo.lazar@amd.com>
Reviewed-by: Hawking Zhang <Hawking.Zhang@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

diff --git a/drivers/gpu/drm/amd/amdgpu/gfx_v9_4_3.c b/drivers/gpu/drm/amd/amdgpu/gfx_v9_4_3.c
index d684037..aaa6759 100644 (file)
--- a/drivers/gpu/drm/amd/amdgpu/gfx_v9_4_3.c
+++ b/drivers/gpu/drm/amd/amdgpu/gfx_v9_4_3.c
@@ -23,6 +23,7 @@
 #include <linux/firmware.h>
 
 #include "amdgpu.h"
+#include "amdgpu_xcp.h"
 #include "amdgpu_gfx.h"
 #include "soc15.h"
 #include "soc15d.h"
@@ -3177,3 +3178,49 @@ const struct amdgpu_ip_block_version gfx_v9_4_3_ip_block = {
        .rev = 0,
        .funcs = &gfx_v9_4_3_ip_funcs,
 };
+
+static int gfx_v9_4_3_xcp_resume(void *handle, uint32_t inst_mask)
+{
+       struct amdgpu_device *adev = (struct amdgpu_device *)handle;
+       uint32_t tmp_mask;
+       int i, r;
+
+       /* TODO : Initialize golden regs */
+       /* gfx_v9_4_3_init_golden_registers(adev); */
+
+       tmp_mask = inst_mask;
+       for_each_inst(i, tmp_mask)
+               gfx_v9_4_3_xcc_constants_init(adev, i);
+
+       tmp_mask = inst_mask;
+       for_each_inst(i, tmp_mask) {
+               r = gfx_v9_4_3_xcc_rlc_resume(adev, i);
+               if (r)
+                       return r;
+       }
+
+       tmp_mask = inst_mask;
+       for_each_inst(i, tmp_mask) {
+               r = gfx_v9_4_3_xcc_cp_resume(adev, i);
+               if (r)
+                       return r;
+       }
+
+       return 0;
+}
+
+static int gfx_v9_4_3_xcp_suspend(void *handle, uint32_t inst_mask)
+{
+       struct amdgpu_device *adev = (struct amdgpu_device *)handle;
+       int i;
+
+       for_each_inst(i, inst_mask)
+               gfx_v9_4_3_xcc_fini(adev, i);
+
+       return 0;
+}
+
+struct amdgpu_xcp_ip_funcs gfx_v9_4_3_xcp_funcs = {
+       .suspend = &gfx_v9_4_3_xcp_suspend,
+       .resume = &gfx_v9_4_3_xcp_resume
+};