Files
android/drivers/gpu/drm/nouveau/nvkm/subdev/bar/g84.c
T
threeeye bc1d038eac REVVL 6 Pro kernel bring-up: full working tree snapshot (2026-09-12)
Squashed backup commit (no shallow-clone history issues) of
xiaomi-mt6833-dev/kernel_xiaomi_mt6833 (lineage-23.2 branch, upstream
commit 9eece662e) plus all fixes applied to get everpal_defconfig building
clean against a modern (GCC 15.2.0) toolchain -- see the previous commit
message on the lineage-23.2 branch (also in this repo history is not
available here since this is a squashed snapshot; full incremental history
lives in the local DL380 checkout and the upstream GitHub remote).

Upstream: https://github.com/xiaomi-mt6833-dev/kernel_xiaomi_mt6833 (lineage-23.2)
2026-09-12 13:36:46 +00:00

57 lines
1.9 KiB
C

/*
* Copyright 2015 Red Hat Inc.
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the "Software"),
* to deal in the Software without restriction, including without limitation
* the rights to use, copy, modify, merge, publish, distribute, sublicense,
* and/or sell copies of the Software, and to permit persons to whom the
* Software is furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
* THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
* OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
* ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
* OTHER DEALINGS IN THE SOFTWARE.
*
* Authors: Ben Skeggs <bskeggs@redhat.com>
*/
#include "nv50.h"
#include <subdev/timer.h>
void
g84_bar_flush(struct nvkm_bar *bar)
{
struct nvkm_device *device = bar->subdev.device;
unsigned long flags;
spin_lock_irqsave(&bar->lock, flags);
nvkm_wr32(device, 0x070000, 0x00000001);
nvkm_msec(device, 2000,
if (!(nvkm_rd32(device, 0x070000) & 0x00000002))
break;
);
spin_unlock_irqrestore(&bar->lock, flags);
}
static const struct nvkm_bar_func
g84_bar_func = {
.dtor = nv50_bar_dtor,
.oneinit = nv50_bar_oneinit,
.init = nv50_bar_init,
.kmap = nv50_bar_kmap,
.umap = nv50_bar_umap,
.flush = g84_bar_flush,
};
int
g84_bar_new(struct nvkm_device *device, int index, struct nvkm_bar **pbar)
{
return nv50_bar_new_(&g84_bar_func, device, index, 0x200, pbar);
}