From: Lijo Lazar <[email protected]> Add functions to suspend/resume GFX instances belonging to an XCP.
Signed-off-by: Lijo Lazar <[email protected]> Reviewed-by: Hawking Zhang <[email protected]> Signed-off-by: Alex Deucher <[email protected]> --- 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
