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From 0cf53651114b923401c697d5c77e8f123fee0ac0 Mon Sep 17 00:00:00 2001
From: Yong Zhao <yong.zhao@amd.com>
Date: Wed, 24 Aug 2016 12:49:42 -0400
Subject: [PATCH 1493/4131] drm/amdkfd: Implement image tiling mode support
Change-Id: Iae2398fd7079abb1fbc59672803a82d88a33e9c2
Signed-off-by: Yong Zhao <yong.zhao@amd.com>
---
drivers/gpu/drm/amd/amdkfd/kfd_chardev.c | 45 +++++++++++++++++++++++++++++++-
1 file changed, 44 insertions(+), 1 deletion(-)
diff --git a/drivers/gpu/drm/amd/amdkfd/kfd_chardev.c b/drivers/gpu/drm/amd/amdkfd/kfd_chardev.c
index 50e32bd..831f63f 100644
--- a/drivers/gpu/drm/amd/amdkfd/kfd_chardev.c
+++ b/drivers/gpu/drm/amd/amdkfd/kfd_chardev.c
@@ -1776,6 +1776,46 @@ static int kfd_ioctl_import_dmabuf(struct file *filep,
return 0;
}
+static int kfd_ioctl_get_tile_config(struct file *filep,
+ struct kfd_process *p, void *data)
+{
+ struct kfd_ioctl_get_tile_config_args *args = data;
+ struct kfd_dev *dev;
+ struct tile_config config;
+ int err = 0;
+
+ dev = kfd_device_by_id(args->gpu_id);
+
+ dev->kfd2kgd->get_tile_config(dev->kgd, &config);
+
+ args->gb_addr_config = config.gb_addr_config;
+ args->num_banks = config.num_banks;
+ args->num_ranks = config.num_ranks;
+
+ if (args->num_tile_configs > config.num_tile_configs)
+ args->num_tile_configs = config.num_tile_configs;
+ err = copy_to_user((void __user *)args->tile_config_ptr,
+ config.tile_config_ptr,
+ args->num_tile_configs * sizeof(uint32_t));
+ if (err) {
+ args->num_tile_configs = 0;
+ return -EFAULT;
+ }
+
+ if (args->num_macro_tile_configs > config.num_macro_tile_configs)
+ args->num_macro_tile_configs =
+ config.num_macro_tile_configs;
+ err = copy_to_user((void __user *)args->macro_tile_config_ptr,
+ config.macro_tile_config_ptr,
+ args->num_macro_tile_configs * sizeof(uint32_t));
+ if (err) {
+ args->num_macro_tile_configs = 0;
+ return -EFAULT;
+ }
+
+ return 0;
+}
+
#define AMDKFD_IOCTL_DEF(ioctl, _func, _flags) \
[_IOC_NR(ioctl)] = {.cmd = ioctl, .func = _func, .flags = _flags, .cmd_drv = 0, .name = #ioctl}
@@ -1875,7 +1915,10 @@ static const struct amdkfd_ioctl_desc amdkfd_ioctls[] = {
kfd_ioctl_get_dmabuf_info, 0),
AMDKFD_IOCTL_DEF(AMDKFD_IOC_IMPORT_DMABUF,
- kfd_ioctl_import_dmabuf, 0)
+ kfd_ioctl_import_dmabuf, 0),
+
+ AMDKFD_IOCTL_DEF(AMDKFD_IOC_GET_TILE_CONFIG,
+ kfd_ioctl_get_tile_config, 0)
};
#define AMDKFD_CORE_IOCTL_COUNT ARRAY_SIZE(amdkfd_ioctls)
--
2.7.4
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