From: Lijo Lazar <lijo.lazar@xxxxxxx>
Add functions to suspend/resume GFX instances belonging to an XCP.
Signed-off-by: Lijo Lazar <lijo.lazar@xxxxxxx>
Reviewed-by: Hawking Zhang <Hawking.Zhang@xxxxxxx>
Signed-off-by: Alex Deucher <alexander.deucher@xxxxxxx>
---
drivers/gpu/drm/amd/amdgpu/gfx_v9_4_3.c | 47 +++++++++++++++++++++++++
1 file changed, 47 insertions(+)
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 eac6faf7e1da..3bda7470b7ff 100644
--- 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"
@@ -3184,3 +3185,49 @@ 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
+};
--
2.39.2
