blob: 94f54146f6134d0b8fd4f6e1156ccb755f0b8678 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
|
#include <stdlib.h>
#include <nvif/device.h>
static void __iomem *map = NULL;
static u64 map_page = ~0ULL;
static void
nv_wfb(struct nvif_device *device, u64 offset, CAST data)
{
struct nvkm_device *nv = nvxx_device(device);
u64 page = (offset & ~(PAGE_SIZE - 1));
u64 addr = (offset & (PAGE_SIZE - 1));
if (device->info.family < NV_DEVICE_INFO_V0_TNT ||
device->info.family > NV_DEVICE_INFO_V0_MAXWELL) {
printk("unsupported chipset\n");
exit(1);
}
if (map_page != page) {
if (map)
iounmap(map);
map = ioremap(nv->func->resource_addr(nv, 1) + page, PAGE_SIZE);
if (!map) {
printk("map failed\n");
exit(1);
}
map_page = page;
}
*(CAST *)(map + addr) = data;
}
#define WRITE(o,v) nv_wfb(device, (o), (v))
#define DETECT true
#include "nv_wrfunc.h"
|