From: Junwei Zhang Date: Fri, 14 Jul 2017 18:37:44 +0800 Subject: drm/amdgpu: add ring_destroy for psp v10 Git-commit: a4f478bc8863a4fdd69a4bc8309ee60c635a004d Patch-mainline: v4.14-rc1 References: FATE#326289 FATE#326079 FATE#326049 FATE#322398 FATE#326166 Signed-off-by: Junwei Zhang Reviewed-by: Alex Deucher Signed-off-by: Alex Deucher Acked-by: Petr Tesarik --- drivers/gpu/drm/amd/amdgpu/amdgpu_psp.c | 1 + drivers/gpu/drm/amd/amdgpu/psp_v10_0.c | 27 +++++++++++++++++++++++++++ drivers/gpu/drm/amd/amdgpu/psp_v10_0.h | 2 ++ 3 files changed, 30 insertions(+) --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_psp.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_psp.c @@ -67,6 +67,7 @@ static int psp_sw_init(void *handle) psp->prep_cmd_buf = psp_v10_0_prep_cmd_buf; psp->ring_init = psp_v10_0_ring_init; psp->ring_create = psp_v10_0_ring_create; + psp->ring_destroy = psp_v10_0_ring_destroy; psp->cmd_submit = psp_v10_0_cmd_submit; psp->compare_sram_data = psp_v10_0_compare_sram_data; break; --- a/drivers/gpu/drm/amd/amdgpu/psp_v10_0.c +++ b/drivers/gpu/drm/amd/amdgpu/psp_v10_0.c @@ -209,6 +209,33 @@ int psp_v10_0_ring_create(struct psp_con return ret; } +int psp_v10_0_ring_destroy(struct psp_context *psp, enum psp_ring_type ring_type) +{ + int ret = 0; + struct psp_ring *ring; + unsigned int psp_ring_reg = 0; + struct amdgpu_device *adev = psp->adev; + + ring = &psp->km_ring; + + /* Write the ring destroy command to C2PMSG_64 */ + psp_ring_reg = 3 << 16; + WREG32_SOC15(MP0, 0, mmMP0_SMN_C2PMSG_64, psp_ring_reg); + + /* There might be handshake issue with hardware which needs delay */ + mdelay(20); + + /* Wait for response flag (bit 31) in C2PMSG_64 */ + ret = psp_wait_for(psp, SOC15_REG_OFFSET(MP0, 0, mmMP0_SMN_C2PMSG_64), + 0x80000000, 0x80000000, false); + + amdgpu_bo_free_kernel(&adev->firmware.rbuf, + &ring->ring_mem_mc_addr, + (void **)&ring->ring_mem); + + return ret; +} + int psp_v10_0_cmd_submit(struct psp_context *psp, struct amdgpu_firmware_info *ucode, uint64_t cmd_buf_mc_addr, uint64_t fence_mc_addr, --- a/drivers/gpu/drm/amd/amdgpu/psp_v10_0.h +++ b/drivers/gpu/drm/amd/amdgpu/psp_v10_0.h @@ -34,6 +34,8 @@ extern int psp_v10_0_ring_init(struct ps enum psp_ring_type ring_type); extern int psp_v10_0_ring_create(struct psp_context *psp, enum psp_ring_type ring_type); +extern int psp_v10_0_ring_destroy(struct psp_context *psp, + enum psp_ring_type ring_type); extern int psp_v10_0_cmd_submit(struct psp_context *psp, struct amdgpu_firmware_info *ucode, uint64_t cmd_buf_mc_addr, uint64_t fence_mc_addr,