drm/amd/display: move FPU code from dcn301 clk mgr to DML folder

The -mno-gnu-attribute option in dcn301 clk mgr makefile hides a soft vs
hard fp error for powerpc. After removing this flag, we can see some FPU
code remains there:

gcc-11.3.0-nolibc/powerpc64-linux/bin/powerpc64-linux-ld:
drivers/gpu/drm/amd/amdgpu/../display/dc/dml/display_mode_lib.o uses
hard float,
drivers/gpu/drm/amd/amdgpu/../display/dc/clk_mgr/dcn301/vg_clk_mgr.o
uses soft float

Therefore, remove the -mno-gnu-attribute flag for dcn301/powerpc and
move FPU-associated code to DML folder.

Signed-off-by: Melissa Wen <mwen@igalia.com>
Reviewed-by: Maíra Canal <mairacanal@riseup.net>
Reviewed-by: Rodrigo Siqueira <Rodrigo.Siqueira@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

diff --git a/drivers/gpu/drm/amd/display/dc/clk_mgr/Makefile b/drivers/gpu/drm/amd/display/dc/clk_mgr/Makefile
index 15b660a..271d8e5 100644 (file)
--- a/drivers/gpu/drm/amd/display/dc/clk_mgr/Makefile
+++ b/drivers/gpu/drm/amd/display/dc/clk_mgr/Makefile
@@ -123,12 +123,6 @@ AMD_DISPLAY_FILES += $(AMD_DAL_CLK_MGR_DCN30)
 ###############################################################################
 CLK_MGR_DCN301 = vg_clk_mgr.o dcn301_smu.o
 
-# prevent build errors regarding soft-float vs hard-float FP ABI tags
-# this code is currently unused on ppc64, as it applies to VanGogh APUs only
-ifdef CONFIG_PPC64
-CFLAGS_$(AMDDALPATH)/dc/clk_mgr/dcn301/vg_clk_mgr.o := $(call cc-option,-mno-gnu-attribute)
-endif
-
 AMD_DAL_CLK_MGR_DCN301 = $(addprefix $(AMDDALPATH)/dc/clk_mgr/dcn301/,$(CLK_MGR_DCN301))
 
 AMD_DISPLAY_FILES += $(AMD_DAL_CLK_MGR_DCN301)

diff --git a/drivers/gpu/drm/amd/display/dc/clk_mgr/dcn301/vg_clk_mgr.c b/drivers/gpu/drm/amd/display/dc/clk_mgr/dcn301/vg_clk_mgr.c
index f310b0d..24715ca 100644 (file)
--- a/drivers/gpu/drm/amd/display/dc/clk_mgr/dcn301/vg_clk_mgr.c
+++ b/drivers/gpu/drm/amd/display/dc/clk_mgr/dcn301/vg_clk_mgr.c
@@ -32,6 +32,9 @@
 // For dcn20_update_clocks_update_dpp_dto
 #include "dcn20/dcn20_clk_mgr.h"
 
+// For DML FPU code
+#include "dml/dcn20/dcn20_fpu.h"
+
 #include "vg_clk_mgr.h"
 #include "dcn301_smu.h"
 #include "reg_helper.h"
@@ -526,81 +529,6 @@ static struct clk_bw_params vg_bw_params = {
 
 };
 
-static struct wm_table ddr4_wm_table = {
-       .entries = {
-               {
-                       .wm_inst = WM_A,
-                       .wm_type = WM_TYPE_PSTATE_CHG,
-                       .pstate_latency_us = 11.72,
-                       .sr_exit_time_us = 6.09,
-                       .sr_enter_plus_exit_time_us = 7.14,
-                       .valid = true,
-               },
-               {
-                       .wm_inst = WM_B,
-                       .wm_type = WM_TYPE_PSTATE_CHG,
-                       .pstate_latency_us = 11.72,
-                       .sr_exit_time_us = 10.12,
-                       .sr_enter_plus_exit_time_us = 11.48,
-                       .valid = true,
-               },
-               {
-                       .wm_inst = WM_C,
-                       .wm_type = WM_TYPE_PSTATE_CHG,
-                       .pstate_latency_us = 11.72,
-                       .sr_exit_time_us = 10.12,
-                       .sr_enter_plus_exit_time_us = 11.48,
-                       .valid = true,
-               },
-               {
-                       .wm_inst = WM_D,
-                       .wm_type = WM_TYPE_PSTATE_CHG,
-                       .pstate_latency_us = 11.72,
-                       .sr_exit_time_us = 10.12,
-                       .sr_enter_plus_exit_time_us = 11.48,
-                       .valid = true,
-               },
-       }
-};
-
-static struct wm_table lpddr5_wm_table = {
-       .entries = {
-               {
-                       .wm_inst = WM_A,
-                       .wm_type = WM_TYPE_PSTATE_CHG,
-                       .pstate_latency_us = 11.65333,
-                       .sr_exit_time_us = 13.5,
-                       .sr_enter_plus_exit_time_us = 16.5,
-                       .valid = true,
-               },
-               {
-                       .wm_inst = WM_B,
-                       .wm_type = WM_TYPE_PSTATE_CHG,
-                       .pstate_latency_us = 11.65333,
-                       .sr_exit_time_us = 13.5,
-                       .sr_enter_plus_exit_time_us = 16.5,
-                       .valid = true,
-               },
-               {
-                       .wm_inst = WM_C,
-                       .wm_type = WM_TYPE_PSTATE_CHG,
-                       .pstate_latency_us = 11.65333,
-                       .sr_exit_time_us = 13.5,
-                       .sr_enter_plus_exit_time_us = 16.5,
-                       .valid = true,
-               },
-               {
-                       .wm_inst = WM_D,
-                       .wm_type = WM_TYPE_PSTATE_CHG,
-                       .pstate_latency_us = 11.65333,
-                       .sr_exit_time_us = 13.5,
-                       .sr_enter_plus_exit_time_us = 16.5,
-                       .valid = true,
-               },
-       }
-};
-
-
 static unsigned int find_dcfclk_for_voltage(const struct vg_dpm_clocks *clock_table,
                unsigned int voltage)
 {
@@ -670,10 +598,9 @@ static void vg_clk_mgr_helper_populate_bw_params(
                /*
                 * WM set D will be re-purposed for memory retraining
                 */
-               bw_params->wm_table.entries[WM_D].pstate_latency_us = LPDDR_MEM_RETRAIN_LATENCY;
-               bw_params->wm_table.entries[WM_D].wm_inst = WM_D;
-               bw_params->wm_table.entries[WM_D].wm_type = WM_TYPE_RETRAINING;
-               bw_params->wm_table.entries[WM_D].valid = true;
+               DC_FP_START();
+               dcn21_clk_mgr_set_bw_params_wm_table(bw_params);
+               DC_FP_END();
        }
 
 }

diff --git a/drivers/gpu/drm/amd/display/dc/clk_mgr/dcn301/vg_clk_mgr.h b/drivers/gpu/drm/amd/display/dc/clk_mgr/dcn301/vg_clk_mgr.h
index 7255477..75884f5 100644 (file)
--- a/drivers/gpu/drm/amd/display/dc/clk_mgr/dcn301/vg_clk_mgr.h
+++ b/drivers/gpu/drm/amd/display/dc/clk_mgr/dcn301/vg_clk_mgr.h
@@ -29,6 +29,9 @@
 
 struct watermarks;
 
+extern struct wm_table ddr4_wm_table;
+extern struct wm_table lpddr5_wm_table;
+
 struct smu_watermark_set {
        struct watermarks *wm_set;
        union large_integer mc_address;

diff --git a/drivers/gpu/drm/amd/display/dc/dml/dcn301/dcn301_fpu.c b/drivers/gpu/drm/amd/display/dc/dml/dcn301/dcn301_fpu.c
index e4863f0..7ef66e5 100644 (file)
--- a/drivers/gpu/drm/amd/display/dc/dml/dcn301/dcn301_fpu.c
+++ b/drivers/gpu/drm/amd/display/dc/dml/dcn301/dcn301_fpu.c
@@ -214,6 +214,80 @@ struct _vcs_dpi_soc_bounding_box_st dcn3_01_soc = {
        .urgent_latency_adjustment_fabric_clock_reference_mhz = 0,
 };
 
+struct wm_table ddr4_wm_table = {
+       .entries = {
+               {
+                       .wm_inst = WM_A,
+                       .wm_type = WM_TYPE_PSTATE_CHG,
+                       .pstate_latency_us = 11.72,
+                       .sr_exit_time_us = 6.09,
+                       .sr_enter_plus_exit_time_us = 7.14,
+                       .valid = true,
+               },
+               {
+                       .wm_inst = WM_B,
+                       .wm_type = WM_TYPE_PSTATE_CHG,
+                       .pstate_latency_us = 11.72,
+                       .sr_exit_time_us = 10.12,
+                       .sr_enter_plus_exit_time_us = 11.48,
+                       .valid = true,
+               },
+               {
+                       .wm_inst = WM_C,
+                       .wm_type = WM_TYPE_PSTATE_CHG,
+                       .pstate_latency_us = 11.72,
+                       .sr_exit_time_us = 10.12,
+                       .sr_enter_plus_exit_time_us = 11.48,
+                       .valid = true,
+               },
+               {
+                       .wm_inst = WM_D,
+                       .wm_type = WM_TYPE_PSTATE_CHG,
+                       .pstate_latency_us = 11.72,
+                       .sr_exit_time_us = 10.12,
+                       .sr_enter_plus_exit_time_us = 11.48,
+                       .valid = true,
+               },
+       }
+};
+
+struct wm_table lpddr5_wm_table = {
+       .entries = {
+               {
+                       .wm_inst = WM_A,
+                       .wm_type = WM_TYPE_PSTATE_CHG,
+                       .pstate_latency_us = 11.65333,
+                       .sr_exit_time_us = 13.5,
+                       .sr_enter_plus_exit_time_us = 16.5,
+                       .valid = true,
+               },
+               {
+                       .wm_inst = WM_B,
+                       .wm_type = WM_TYPE_PSTATE_CHG,
+                       .pstate_latency_us = 11.65333,
+                       .sr_exit_time_us = 13.5,
+                       .sr_enter_plus_exit_time_us = 16.5,
+                       .valid = true,
+               },
+               {
+                       .wm_inst = WM_C,
+                       .wm_type = WM_TYPE_PSTATE_CHG,
+                       .pstate_latency_us = 11.65333,
+                       .sr_exit_time_us = 13.5,
+                       .sr_enter_plus_exit_time_us = 16.5,
+                       .valid = true,
+               },
+               {
+                       .wm_inst = WM_D,
+                       .wm_type = WM_TYPE_PSTATE_CHG,
+                       .pstate_latency_us = 11.65333,
+                       .sr_exit_time_us = 13.5,
+                       .sr_enter_plus_exit_time_us = 16.5,
+                       .valid = true,
+               },
+       }
+};
+
 static void calculate_wm_set_for_vlevel(int vlevel,
                struct wm_range_table_entry *table_entry,
                struct dcn_watermarks *wm_set,