From 834b694cc37890b8ac5437115994dac3a2f48725 Mon Sep 17 00:00:00 2001 From: Alex Deucher Date: Wed, 11 Nov 2015 20:58:55 -0500 Subject: [PATCH] drm/amdgpu/powerplay/tonga: query supported pcie info from cgs (v2) Rather than hardcode it. v2: integrate spc fix from Rex Reviewed-by: Jammy Zhou Signed-off-by: Alex Deucher --- .../gpu/drm/amd/powerplay/hwmgr/tonga_hwmgr.c | 20 +++++++++++++++++-- 1 file changed, 18 insertions(+), 2 deletions(-) diff --git a/drivers/gpu/drm/amd/powerplay/hwmgr/tonga_hwmgr.c b/drivers/gpu/drm/amd/powerplay/hwmgr/tonga_hwmgr.c index 9442313d7557..bed50e6ca82c 100644 --- a/drivers/gpu/drm/amd/powerplay/hwmgr/tonga_hwmgr.c +++ b/drivers/gpu/drm/amd/powerplay/hwmgr/tonga_hwmgr.c @@ -4559,14 +4559,30 @@ int tonga_hwmgr_backend_init(struct pp_hwmgr *hwmgr) data->vddc_phase_shed_control = 0; if (0 == result) { + struct cgs_system_info sys_info = {0}; + data->is_tlu_enabled = 0; hwmgr->platform_descriptor.hardwareActivityPerformanceLevels = TONGA_MAX_HARDWARE_POWERLEVELS; hwmgr->platform_descriptor.hardwarePerformanceLevels = 2; hwmgr->platform_descriptor.minimumClocksReductionPercentage = 50; - data->pcie_gen_cap = 0x30007; - data->pcie_lane_cap = 0x2f0000; + sys_info.size = sizeof(struct cgs_system_info); + sys_info.info_id = CGS_SYSTEM_INFO_PCIE_GEN_INFO; + result = cgs_query_system_info(hwmgr->device, &sys_info); + if (result) + data->pcie_gen_cap = 0x30007; + else + data->pcie_gen_cap = (uint32_t)sys_info.value; + if (data->pcie_gen_cap & CAIL_PCIE_LINK_SPEED_SUPPORT_GEN3) + data->pcie_spc_cap = 20; + sys_info.size = sizeof(struct cgs_system_info); + sys_info.info_id = CGS_SYSTEM_INFO_PCIE_MLW; + result = cgs_query_system_info(hwmgr->device, &sys_info); + if (result) + data->pcie_lane_cap = 0x2f0000; + else + data->pcie_lane_cap = (uint32_t)sys_info.value; } else { /* Ignore return value in here, we are cleaning up a mess. */ tonga_hwmgr_backend_fini(hwmgr); -- 2.20.1