gpu: nvgpu: move pmgr debugfs to linux

Move debugfs related part of pmgr to linux files.

JIRA NVGPU-603

Change-Id: I478491e06e2e7cdbe3826166aafd8491d1e6c1e7
Signed-off-by: Nitin Kumbhar <nkumbhar@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/1801086
GVS: Gerrit_Virtual_Submit
Reviewed-by: Vijayakumar Subbu <vsubbu@nvidia.com>
Reviewed-by: mobile promotions <svcmobile_promotions@nvidia.com>
Tested-by: mobile promotions <svcmobile_promotions@nvidia.com>

drivers/gpu/nvgpu/Makefile

@@ -96,6 +96,7 @@ nvgpu-$(CONFIG_DEBUG_FS) += \
 	os/linux/debug_fifo.o \
 	os/linux/debug_ce.o \
 	os/linux/debug_pmu.o \
+	os/linux/debug_pmgr.o \
 	os/linux/debug_sched.o \
 	os/linux/debug_allocator.o \
 	os/linux/debug_hal.o \

drivers/gpu/nvgpu/os/linux/debug_pmgr.c

@@ -0,0 +1,104 @@
+/*
+ * Copyright (c) 2018, NVIDIA CORPORATION. All rights reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms and conditions of the GNU General Public License,
+ * version 2, as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
+ * more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include <linux/debugfs.h>
+
+#include "os_linux.h"
+
+#include "pmgr/pmgr.h"
+
+static int pmgr_pwr_devices_get_power_u64(void *data, u64 *p)
+{
+	struct gk20a *g = (struct gk20a *)data;
+	int err;
+	u32 val;
+
+	err = pmgr_pwr_devices_get_power(g, &val);
+	*p = val;
+
+	return err;
+}
+
+static int pmgr_pwr_devices_get_current_u64(void *data, u64 *p)
+{
+	struct gk20a *g = (struct gk20a *)data;
+	int err;
+	u32 val;
+
+	err = pmgr_pwr_devices_get_current(g, &val);
+	*p = val;
+
+	return err;
+}
+
+static int pmgr_pwr_devices_get_voltage_u64(void *data, u64 *p)
+{
+	struct gk20a *g = (struct gk20a *)data;
+	int err;
+	u32 val;
+
+	err = pmgr_pwr_devices_get_voltage(g, &val);
+	*p = val;
+
+	return err;
+}
+
+DEFINE_SIMPLE_ATTRIBUTE(
+		pmgr_power_ctrl_fops, pmgr_pwr_devices_get_power_u64, NULL, "%llu\n");
+
+DEFINE_SIMPLE_ATTRIBUTE(
+		pmgr_current_ctrl_fops, pmgr_pwr_devices_get_current_u64, NULL, "%llu\n");
+
+DEFINE_SIMPLE_ATTRIBUTE(
+		pmgr_voltage_ctrl_fops, pmgr_pwr_devices_get_voltage_u64, NULL, "%llu\n");
+
+static void pmgr_debugfs_init(struct gk20a *g)
+{
+	struct nvgpu_os_linux *l = nvgpu_os_linux_from_gk20a(g);
+	struct dentry *dbgentry;
+
+	dbgentry = debugfs_create_file(
+				"power", S_IRUGO, l->debugfs, g, &pmgr_power_ctrl_fops);
+	if (!dbgentry)
+		nvgpu_err(g, "debugfs entry create failed for power");
+
+	dbgentry = debugfs_create_file(
+				"current", S_IRUGO, l->debugfs, g, &pmgr_current_ctrl_fops);
+	if (!dbgentry)
+		nvgpu_err(g, "debugfs entry create failed for current");
+
+	dbgentry = debugfs_create_file(
+				"voltage", S_IRUGO, l->debugfs, g, &pmgr_voltage_ctrl_fops);
+	if (!dbgentry)
+		nvgpu_err(g, "debugfs entry create failed for voltage");
+}
+
+int nvgpu_pmgr_init_debugfs_linux(struct nvgpu_os_linux *l)
+{
+	struct gk20a *g = &l->g;
+	int ret = 0;
+
+	if (!nvgpu_is_enabled(g, NVGPU_PMU_PSTATE))
+		return ret;
+
+	if (!g->ops.clk.support_pmgr_domain)
+		return ret;
+
+	pmgr_debugfs_init(g);
+
+	return ret;
+}
+

drivers/gpu/nvgpu/os/linux/debug_pmgr.h

@@ -0,0 +1,28 @@
+/*
+ * Copyright (c) 2018, NVIDIA CORPORATION. All rights reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms and conditions of the GNU General Public License,
+ * version 2, as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
+ * more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#ifndef __LINUX_DEBUG_PMGR_H
+#define __LINUX_DEBUG_PMGR_H
+
+#ifdef CONFIG_DEBUG_FS
+int nvgpu_pmgr_init_debugfs_linux(struct nvgpu_os_linux *l);
+#else
+int nvgpu_pmgr_init_debugfs_linux(struct nvgpu_os_linux *l)
+{
+	return 0;
+}
+#endif
+#endif

drivers/gpu/nvgpu/os/linux/module.c

@@ -60,6 +60,7 @@
 #include "ctxsw_trace.h"
 #include "driver_common.h"
 #include "channel.h"
+#include "debug_pmgr.h"
 
 #ifdef CONFIG_NVGPU_SUPPORT_CDE
 #include "cde.h"
@@ -214,6 +215,12 @@ int nvgpu_finalize_poweron_linux(struct nvgpu_os_linux *l)
 		}
 	}
 
+	err = nvgpu_pmgr_init_debugfs_linux(l);
+	if (err) {
+		nvgpu_err(g, "failed to init linux pmgr debugfs");
+		return err;
+	}
+
 	l->init_done = true;
 
 	return 0;

drivers/gpu/nvgpu/pmgr/pmgr.c

@@ -24,11 +24,6 @@
 #include "pwrdev.h"
 #include "pmgrpmu.h"
 
-#ifdef CONFIG_DEBUG_FS
-#include <linux/debugfs.h>
-#include "os/linux/os_linux.h"
-#endif
-
 int pmgr_pwr_devices_get_power(struct gk20a *g, u32 *val)
 {
 	struct nv_pmu_pmgr_pwr_devices_query_payload payload;
@@ -74,74 +69,6 @@ int pmgr_pwr_devices_get_voltage(struct gk20a *g, u32 *val)
 	return status;
 }
 
-#ifdef CONFIG_DEBUG_FS
-static int pmgr_pwr_devices_get_power_u64(void *data, u64 *p)
-{
-	struct gk20a *g = (struct gk20a *)data;
-	int err;
-	u32 val;
-
-	err = pmgr_pwr_devices_get_power(g, &val);
-	*p = val;
-
-	return err;
-}
-
-static int pmgr_pwr_devices_get_current_u64(void *data, u64 *p)
-{
-	struct gk20a *g = (struct gk20a *)data;
-	int err;
-	u32 val;
-
-	err = pmgr_pwr_devices_get_current(g, &val);
-	*p = val;
-
-	return err;
-}
-
-static int pmgr_pwr_devices_get_voltage_u64(void *data, u64 *p)
-{
-	struct gk20a *g = (struct gk20a *)data;
-	int err;
-	u32 val;
-
-	err = pmgr_pwr_devices_get_voltage(g, &val);
-	*p = val;
-
-	return err;
-}
-
-DEFINE_SIMPLE_ATTRIBUTE(
-		pmgr_power_ctrl_fops, pmgr_pwr_devices_get_power_u64, NULL, "%llu\n");
-
-DEFINE_SIMPLE_ATTRIBUTE(
-		pmgr_current_ctrl_fops, pmgr_pwr_devices_get_current_u64, NULL, "%llu\n");
-
-DEFINE_SIMPLE_ATTRIBUTE(
-		pmgr_voltage_ctrl_fops, pmgr_pwr_devices_get_voltage_u64, NULL, "%llu\n");
-
-static void pmgr_debugfs_init(struct gk20a *g)
-{
-	struct nvgpu_os_linux *l = nvgpu_os_linux_from_gk20a(g);
-	struct dentry *dbgentry;
-
-	dbgentry = debugfs_create_file(
-				"power", S_IRUGO, l->debugfs, g, &pmgr_power_ctrl_fops);
-	if (!dbgentry)
-		nvgpu_err(g, "debugfs entry create failed for power");
-
-	dbgentry = debugfs_create_file(
-				"current", S_IRUGO, l->debugfs, g, &pmgr_current_ctrl_fops);
-	if (!dbgentry)
-		nvgpu_err(g, "debugfs entry create failed for current");
-
-	dbgentry = debugfs_create_file(
-				"voltage", S_IRUGO, l->debugfs, g, &pmgr_voltage_ctrl_fops);
-	if (!dbgentry)
-		nvgpu_err(g, "debugfs entry create failed for voltage");
-}
-#endif
-
 u32 pmgr_domain_sw_setup(struct gk20a *g)
 {
 	u32 status;
@@ -170,10 +97,6 @@ u32 pmgr_domain_sw_setup(struct gk20a *g)
 		goto exit;
 	}
 
-#ifdef CONFIG_DEBUG_FS
-	pmgr_debugfs_init(g);
-#endif
-
 exit:
 	return status;
 }