gpu: nvgpu: linux: move os ops to a common file

Currently only cde uses nvgpu_os_linux_ops to set up linux
specific ops. Move nvgpu_os_linux_ops of a gpu to a common
file so that those can be reused for other os ops of that
gpu.

JIRA NVGPU-603

Change-Id: Icf1ff275d3832229137f730fe8183b8015e82673
Signed-off-by: Nitin Kumbhar <nkumbhar@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/1797902
Reviewed-by: mobile promotions <svcmobile_promotions@nvidia.com>
Tested-by: mobile promotions <svcmobile_promotions@nvidia.com>

13 files changed, 201 insertions, 58 deletions

diff --git a/drivers/gpu/nvgpu/Makefile b/drivers/gpu/nvgpu/Makefile
index a6f0f0ce..06762586 100644
--- a/drivers/gpu/nvgpu/Makefile
+++ b/drivers/gpu/nvgpu/Makefile
@@ -49,6 +49,9 @@ nvgpu-y += common/bus/bus_gk20a.o \
 
 # Linux specific parts of nvgpu.
 nvgpu-y += \
+        os/linux/os_ops.o \
+        os/linux/os_ops_gm20b.o \
+        os/linux/os_ops_gp10b.o \
         os/linux/kmem.o \
         os/linux/timers.o \
         os/linux/ioctl.o \
diff --git a/drivers/gpu/nvgpu/os/linux/cde.c b/drivers/gpu/nvgpu/os/linux/cde.c
index 850f6deb..30cd0bff 100644
--- a/drivers/gpu/nvgpu/os/linux/cde.c
+++ b/drivers/gpu/nvgpu/os/linux/cde.c
@@ -1791,24 +1791,3 @@ int gk20a_mark_compressible_write(struct gk20a *g, u32 buffer_fd,
         dma_buf_put(dmabuf);
         return 0;
 }
-
-int nvgpu_cde_init_ops(struct nvgpu_os_linux *l)
-{
-        struct gk20a *g = &l->g;
-        u32 ver = g->params.gpu_arch + g->params.gpu_impl;
-
-        switch (ver) {
-        case GK20A_GPUID_GM20B:
-        case GK20A_GPUID_GM20B_B:
-                l->ops.cde = gm20b_cde_ops.cde;
-                break;
-        case NVGPU_GPUID_GP10B:
-                l->ops.cde = gp10b_cde_ops.cde;
-                break;
-        default:
-                /* CDE is optional, so today ignoring unknown chip is fine */
-                break;
-        }
-
-        return 0;
-}
diff --git a/drivers/gpu/nvgpu/os/linux/cde_gm20b.c b/drivers/gpu/nvgpu/os/linux/cde_gm20b.c
index 1cd15c54..7f71b740 100644
--- a/drivers/gpu/nvgpu/os/linux/cde_gm20b.c
+++ b/drivers/gpu/nvgpu/os/linux/cde_gm20b.c
@@ -1,7 +1,7 @@
 /*
  * GM20B CDE
  *
- * Copyright (c) 2015-2017, NVIDIA CORPORATION.  All rights reserved.
+ * Copyright (c) 2015-2018, NVIDIA CORPORATION.  All rights reserved.
  *
  * Permission is hereby granted, free of charge, to any person obtaining a
  * copy of this software and associated documentation files (the "Software"),
@@ -35,10 +35,10 @@ enum programs {
         PROG_PASSTHROUGH        = 6,
 };
 
-static void gm20b_cde_get_program_numbers(struct gk20a *g,
-                                          u32 block_height_log2,
-                                          u32 shader_parameter,
-                                          int *hprog_out, int *vprog_out)
+void gm20b_cde_get_program_numbers(struct gk20a *g,
+                                   u32 block_height_log2,
+                                   u32 shader_parameter,
+                                   int *hprog_out, int *vprog_out)
 {
         int hprog = PROG_HPASS;
         int vprog = (block_height_log2 >= 2) ?
@@ -56,9 +56,3 @@ static void gm20b_cde_get_program_numbers(struct gk20a *g,
         *hprog_out = hprog;
         *vprog_out = vprog;
 }
-
-struct nvgpu_os_linux_ops gm20b_cde_ops = {
-        .cde = {
-                .get_program_numbers = gm20b_cde_get_program_numbers,
-        },
-};
diff --git a/drivers/gpu/nvgpu/os/linux/cde_gm20b.h b/drivers/gpu/nvgpu/os/linux/cde_gm20b.h
index 640d6ab6..fac8aaff 100644
--- a/drivers/gpu/nvgpu/os/linux/cde_gm20b.h
+++ b/drivers/gpu/nvgpu/os/linux/cde_gm20b.h
@@ -1,7 +1,7 @@
 /*
  * GM20B CDE
  *
- * Copyright (c) 2015-2017, NVIDIA CORPORATION.  All rights reserved.
+ * Copyright (c) 2015-2018, NVIDIA CORPORATION.  All rights reserved.
  *
  * Permission is hereby granted, free of charge, to any person obtaining a
  * copy of this software and associated documentation files (the "Software"),
@@ -25,8 +25,9 @@
 #ifndef _NVHOST_GM20B_CDE
 #define _NVHOST_GM20B_CDE
 
-#include "os_linux.h"
-
-extern struct nvgpu_os_linux_ops gm20b_cde_ops;
+void gm20b_cde_get_program_numbers(struct gk20a *g,
+                                   u32 block_height_log2,
+                                   u32 shader_parameter,
+                                   int *hprog_out, int *vprog_out);
 
 #endif
diff --git a/drivers/gpu/nvgpu/os/linux/cde_gp10b.c b/drivers/gpu/nvgpu/os/linux/cde_gp10b.c
index 5c0e79a7..f22f4b68 100644
--- a/drivers/gpu/nvgpu/os/linux/cde_gp10b.c
+++ b/drivers/gpu/nvgpu/os/linux/cde_gp10b.c
@@ -151,11 +151,3 @@ int gp10b_populate_scatter_buffer(struct gk20a *g,
 
         return 0;
 }
-
-struct nvgpu_os_linux_ops gp10b_cde_ops = {
-        .cde = {
-                .get_program_numbers = gp10b_cde_get_program_numbers,
-                .need_scatter_buffer = gp10b_need_scatter_buffer,
-                .populate_scatter_buffer = gp10b_populate_scatter_buffer,
-        },
-};
diff --git a/drivers/gpu/nvgpu/os/linux/cde_gp10b.h b/drivers/gpu/nvgpu/os/linux/cde_gp10b.h
index 52e9f292..3ecca2ab 100644
--- a/drivers/gpu/nvgpu/os/linux/cde_gp10b.h
+++ b/drivers/gpu/nvgpu/os/linux/cde_gp10b.h
@@ -1,7 +1,7 @@
 /*
  * GP10B CDE
  *
- * Copyright (c) 2015-2017, NVIDIA CORPORATION.  All rights reserved.
+ * Copyright (c) 2015-2018, NVIDIA CORPORATION.  All rights reserved.
  *
  * Permission is hereby granted, free of charge, to any person obtaining a
  * copy of this software and associated documentation files (the "Software"),
@@ -27,6 +27,14 @@
 
 #include "os_linux.h"
 
-extern struct nvgpu_os_linux_ops gp10b_cde_ops;
-
+void gp10b_cde_get_program_numbers(struct gk20a *g,
+                                   u32 block_height_log2,
+                                   u32 shader_parameter,
+                                   int *hprog_out, int *vprog_out);
+bool gp10b_need_scatter_buffer(struct gk20a *g);
+int gp10b_populate_scatter_buffer(struct gk20a *g,
+                                  struct sg_table *sgt,
+                                  size_t surface_size,
+                                  void *scatter_buffer_ptr,
+                                  size_t scatter_buffer_size);
 #endif
diff --git a/drivers/gpu/nvgpu/os/linux/module.c b/drivers/gpu/nvgpu/os/linux/module.c
index c07faf08..3be879be 100644
--- a/drivers/gpu/nvgpu/os/linux/module.c
+++ b/drivers/gpu/nvgpu/os/linux/module.c
@@ -56,6 +56,7 @@
 #include "ioctl.h"
 
 #include "os_linux.h"
+#include "os_ops.h"
 #include "ctxsw_trace.h"
 #include "driver_common.h"
 #include "channel.h"
@@ -183,17 +184,6 @@ static int gk20a_restore_registers(struct gk20a *g)
         return 0;
 }
 
-static int nvgpu_init_os_linux_ops(struct nvgpu_os_linux *l)
-{
-        int err = 0;
-
-#ifdef CONFIG_NVGPU_SUPPORT_CDE
-        err = nvgpu_cde_init_ops(l);
-#endif
-
-        return err;
-}
-
 int nvgpu_finalize_poweron_linux(struct nvgpu_os_linux *l)
 {
         struct gk20a *g = &l->g;
diff --git a/drivers/gpu/nvgpu/os/linux/os_ops.c b/drivers/gpu/nvgpu/os/linux/os_ops.c
new file mode 100644
index 00000000..14f92787
--- /dev/null
+++ b/drivers/gpu/nvgpu/os/linux/os_ops.c
@@ -0,0 +1,40 @@
+/*
+ * 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 "os_linux.h"
+
+#include "os_ops_gm20b.h"
+#include "os_ops_gp10b.h"
+
+int nvgpu_init_os_linux_ops(struct nvgpu_os_linux *l)
+{
+        struct gk20a *g = &l->g;
+        u32 ver = g->params.gpu_arch + g->params.gpu_impl;
+
+        switch (ver) {
+        case GK20A_GPUID_GM20B:
+        case GK20A_GPUID_GM20B_B:
+                nvgpu_gm20b_init_os_ops(l);
+                break;
+        case NVGPU_GPUID_GP10B:
+                nvgpu_gp10b_init_os_ops(l);
+                break;
+        default:
+                break;
+        }
+
+        return 0;
+}
diff --git a/drivers/gpu/nvgpu/os/linux/os_ops.h b/drivers/gpu/nvgpu/os/linux/os_ops.h
new file mode 100644
index 00000000..af3ce0a7
--- /dev/null
+++ b/drivers/gpu/nvgpu/os/linux/os_ops.h
@@ -0,0 +1,22 @@
+/*
+ * 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_OS_OPS_H
+#define __LINUX_OS_OPS_H
+
+int nvgpu_init_os_linux_ops(struct nvgpu_os_linux *l);
+
+#endif
diff --git a/drivers/gpu/nvgpu/os/linux/os_ops_gm20b.c b/drivers/gpu/nvgpu/os/linux/os_ops_gm20b.c
new file mode 100644
index 00000000..7db004eb
--- /dev/null
+++ b/drivers/gpu/nvgpu/os/linux/os_ops_gm20b.c
@@ -0,0 +1,34 @@
+/*
+ * 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 "os_linux.h"
+
+#include "cde_gm20b.h"
+
+static struct nvgpu_os_linux_ops gm20b_os_linux_ops = {
+#ifdef CONFIG_NVGPU_SUPPORT_CDE
+        .cde = {
+                .get_program_numbers = gm20b_cde_get_program_numbers,
+        },
+#endif
+};
+
+void nvgpu_gm20b_init_os_ops(struct nvgpu_os_linux *l)
+{
+#ifdef CONFIG_NVGPU_SUPPORT_CDE
+        l->ops.cde = gm20b_os_linux_ops.cde;
+#endif
+}
diff --git a/drivers/gpu/nvgpu/os/linux/os_ops_gm20b.h b/drivers/gpu/nvgpu/os/linux/os_ops_gm20b.h
new file mode 100644
index 00000000..7d27e401
--- /dev/null
+++ b/drivers/gpu/nvgpu/os/linux/os_ops_gm20b.h
@@ -0,0 +1,22 @@
+/*
+ * 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_OS_OPS_GM20B_H
+#define __LINUX_OS_OPS_GM20B_H
+
+void nvgpu_gm20b_init_os_ops(struct nvgpu_os_linux *l);
+
+#endif
diff --git a/drivers/gpu/nvgpu/os/linux/os_ops_gp10b.c b/drivers/gpu/nvgpu/os/linux/os_ops_gp10b.c
new file mode 100644
index 00000000..984dcdc0
--- /dev/null
+++ b/drivers/gpu/nvgpu/os/linux/os_ops_gp10b.c
@@ -0,0 +1,36 @@
+/*
+ * 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 "os_linux.h"
+
+#include "cde_gp10b.h"
+
+static struct nvgpu_os_linux_ops gp10b_os_linux_ops = {
+#ifdef CONFIG_NVGPU_SUPPORT_CDE
+        .cde = {
+                .get_program_numbers = gp10b_cde_get_program_numbers,
+                .need_scatter_buffer = gp10b_need_scatter_buffer,
+                .populate_scatter_buffer = gp10b_populate_scatter_buffer,
+        },
+#endif
+};
+
+void nvgpu_gp10b_init_os_ops(struct nvgpu_os_linux *l)
+{
+#ifdef CONFIG_NVGPU_SUPPORT_CDE
+        l->ops.cde = gp10b_os_linux_ops.cde;
+#endif
+}
diff --git a/drivers/gpu/nvgpu/os/linux/os_ops_gp10b.h b/drivers/gpu/nvgpu/os/linux/os_ops_gp10b.h
new file mode 100644
index 00000000..0be1bca1
--- /dev/null
+++ b/drivers/gpu/nvgpu/os/linux/os_ops_gp10b.h
@@ -0,0 +1,22 @@
+/*
+ * 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_OS_OPS_GP10B_H
+#define __LINUX_OS_OPS_GP10B_H
+
+void nvgpu_gp10b_init_os_ops(struct nvgpu_os_linux *l);
+
+#endif