amdgpu: Wrap FPU dependent functions in dc20

dc20 containes several FPU-dependent functions without proper FPU
kernel mode enable/disable wrappers.  Add the required wrappers
for both x86 and POWER.

This enables Navi DC20 support for POWER systems.

v2: fix compilation

Signed-off-by: Timothy Pearson <tpearson@raptorengineering.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

diff --git a/drivers/gpu/drm/amd/display/dc/dcn20/dcn20_resource.c b/drivers/gpu/drm/amd/display/dc/dcn20/dcn20_resource.c
index 1e8b79b..47adcd4 100644 (file)
--- a/drivers/gpu/drm/amd/display/dc/dcn20/dcn20_resource.c
+++ b/drivers/gpu/drm/amd/display/dc/dcn20/dcn20_resource.c
@@ -2887,12 +2887,19 @@ bool dcn20_validate_bandwidth(struct dc *dc, struct dc_state *context,
        bool voltage_supported = false;
        bool full_pstate_supported = false;
        bool dummy_pstate_supported = false;
-       double p_state_latency_us = context->bw_ctx.dml.soc.dram_clock_change_latency_us;
-       context->bw_ctx.dml.soc.disable_dram_clock_change_vactive_support = dc->debug.disable_dram_clock_change_vactive_support;
+       double p_state_latency_us;
 
-       if (fast_validate)
-               return dcn20_validate_bandwidth_internal(dc, context, true);
+       DC_FP_START();
+       p_state_latency_us = context->bw_ctx.dml.soc.dram_clock_change_latency_us;
+       context->bw_ctx.dml.soc.disable_dram_clock_change_vactive_support =
+               dc->debug.disable_dram_clock_change_vactive_support;
 
+       if (fast_validate) {
+               voltage_supported = dcn20_validate_bandwidth_internal(dc, context, true);
+
+               DC_FP_END();
+               return voltage_supported;
+       }
 
        // Best case, we support full UCLK switch latency
        voltage_supported = dcn20_validate_bandwidth_internal(dc, context, false);
@@ -2921,6 +2928,7 @@ bool dcn20_validate_bandwidth(struct dc *dc, struct dc_state *context,
 restore_dml_state:
        context->bw_ctx.dml.soc.dram_clock_change_latency_us = p_state_latency_us;
 
+       DC_FP_END();
        return voltage_supported;
 }
 
@@ -3442,6 +3450,8 @@ static bool dcn20_resource_construct(
        enum dml_project dml_project_version =
                        get_dml_project_version(ctx->asic_id.hw_internal_rev);
 
+       DC_FP_START();
+
        ctx->dc_bios->regs = &bios_regs;
        pool->base.funcs = &dcn20_res_pool_funcs;
 
@@ -3739,10 +3749,12 @@ static bool dcn20_resource_construct(
                pool->base.oem_device = NULL;
        }
 
+       DC_FP_END();
        return true;
 
 create_fail:
 
+       DC_FP_END();
        dcn20_resource_destruct(pool);
 
        return false;