staticint psp_v11_0_8_ring_stop(struct psp_context *psp, enum psp_ring_type ring_type)
{ int ret = 0; struct amdgpu_device *adev = psp->adev;
if (amdgpu_sriov_vf(adev)) { /* Write the ring destroy command*/
WREG32_SOC15(MP0, 0, mmMP0_SMN_C2PMSG_101,
GFX_CTRL_CMD_ID_DESTROY_GPCOM_RING); /* there might be handshake issue with hardware which needs delay */
mdelay(20); /* Wait for response flag (bit 31) */
ret = psp_wait_for(
psp, SOC15_REG_OFFSET(MP0, 0, mmMP0_SMN_C2PMSG_101),
MBOX_TOS_RESP_FLAG, MBOX_TOS_RESP_MASK, 0);
} else { /* Write the ring destroy command*/
WREG32_SOC15(MP0, 0, mmMP0_SMN_C2PMSG_64,
GFX_CTRL_CMD_ID_DESTROY_RINGS); /* there might be handshake issue with hardware which needs delay */
mdelay(20); /* Wait for response flag (bit 31) */
ret = psp_wait_for(
psp, SOC15_REG_OFFSET(MP0, 0, mmMP0_SMN_C2PMSG_64),
MBOX_TOS_RESP_FLAG, MBOX_TOS_RESP_MASK, 0);
}
if (amdgpu_sriov_vf(adev)) {
ret = psp_v11_0_8_ring_stop(psp, ring_type); if (ret) {
DRM_ERROR("psp_v11_0_8_ring_stop_sriov failed!\n"); return ret;
}
/* Write low address of the ring to C2PMSG_102 */
psp_ring_reg = lower_32_bits(ring->ring_mem_mc_addr);
WREG32_SOC15(MP0, 0, mmMP0_SMN_C2PMSG_102, psp_ring_reg); /* Write high address of the ring to C2PMSG_103 */
psp_ring_reg = upper_32_bits(ring->ring_mem_mc_addr);
WREG32_SOC15(MP0, 0, mmMP0_SMN_C2PMSG_103, psp_ring_reg);
/* Write the ring initialization command to C2PMSG_101 */
WREG32_SOC15(MP0, 0, mmMP0_SMN_C2PMSG_101,
GFX_CTRL_CMD_ID_INIT_GPCOM_RING);
/* there might be handshake issue with hardware which needs delay */
mdelay(20);
/* Wait for response flag (bit 31) in C2PMSG_101 */
ret = psp_wait_for(
psp, SOC15_REG_OFFSET(MP0, 0, mmMP0_SMN_C2PMSG_101),
MBOX_TOS_RESP_FLAG, MBOX_TOS_RESP_MASK, 0);
} else { /* Wait for sOS ready for ring creation */
ret = psp_wait_for(
psp, SOC15_REG_OFFSET(MP0, 0, mmMP0_SMN_C2PMSG_64),
MBOX_TOS_READY_FLAG, MBOX_TOS_READY_MASK, 0); if (ret) {
DRM_ERROR("Failed to wait for trust OS ready for ring creation\n"); return ret;
}
/* Write low address of the ring to C2PMSG_69 */
psp_ring_reg = lower_32_bits(ring->ring_mem_mc_addr);
WREG32_SOC15(MP0, 0, mmMP0_SMN_C2PMSG_69, psp_ring_reg); /* Write high address of the ring to C2PMSG_70 */
psp_ring_reg = upper_32_bits(ring->ring_mem_mc_addr);
WREG32_SOC15(MP0, 0, mmMP0_SMN_C2PMSG_70, psp_ring_reg); /* Write size of ring to C2PMSG_71 */
psp_ring_reg = ring->ring_size;
WREG32_SOC15(MP0, 0, mmMP0_SMN_C2PMSG_71, psp_ring_reg); /* Write the ring initialization command to C2PMSG_64 */
psp_ring_reg = ring_type;
psp_ring_reg = psp_ring_reg << 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),
MBOX_TOS_RESP_FLAG, MBOX_TOS_RESP_MASK, 0);
}
Die Informationen auf dieser Webseite wurden
nach bestem Wissen sorgfältig zusammengestellt. Es wird jedoch weder Vollständigkeit, noch Richtigkeit,
noch Qualität der bereit gestellten Informationen zugesichert.
Bemerkung:
Die farbliche Syntaxdarstellung und die Messung sind noch experimentell.