From 1543e317f1da31b75942316931e8f491a8920811 Mon Sep 17 00:00:00 2001
From: hc <hc@nodka.com>
Date: Thu, 04 Jan 2024 10:08:02 +0000
Subject: [PATCH] disable FB
---
kernel/drivers/gpu/drm/nouveau/nvkm/falcon/base.c | 92 +++++++++++++++++++++++++---------------------
1 files changed, 50 insertions(+), 42 deletions(-)
diff --git a/kernel/drivers/gpu/drm/nouveau/nvkm/falcon/base.c b/kernel/drivers/gpu/drm/nouveau/nvkm/falcon/base.c
index 14be41f..93d9575 100644
--- a/kernel/drivers/gpu/drm/nouveau/nvkm/falcon/base.c
+++ b/kernel/drivers/gpu/drm/nouveau/nvkm/falcon/base.c
@@ -22,6 +22,7 @@
#include "priv.h"
#include <subdev/mc.h>
+#include <subdev/top.h>
void
nvkm_falcon_load_imem(struct nvkm_falcon *falcon, void *data, u32 start,
@@ -118,8 +119,12 @@
int
nvkm_falcon_reset(struct nvkm_falcon *falcon)
{
- nvkm_falcon_disable(falcon);
- return nvkm_falcon_enable(falcon);
+ if (!falcon->func->reset) {
+ nvkm_falcon_disable(falcon);
+ return nvkm_falcon_enable(falcon);
+ }
+
+ return falcon->func->reset(falcon);
}
int
@@ -132,6 +137,37 @@
nvkm_falcon_clear_interrupt(struct nvkm_falcon *falcon, u32 mask)
{
return falcon->func->clear_interrupt(falcon, mask);
+}
+
+static int
+nvkm_falcon_oneinit(struct nvkm_falcon *falcon)
+{
+ const struct nvkm_falcon_func *func = falcon->func;
+ const struct nvkm_subdev *subdev = falcon->owner;
+ u32 reg;
+
+ if (!falcon->addr) {
+ falcon->addr = nvkm_top_addr(subdev->device, subdev->index);
+ if (WARN_ON(!falcon->addr))
+ return -ENODEV;
+ }
+
+ reg = nvkm_falcon_rd32(falcon, 0x12c);
+ falcon->version = reg & 0xf;
+ falcon->secret = (reg >> 4) & 0x3;
+ falcon->code.ports = (reg >> 8) & 0xf;
+ falcon->data.ports = (reg >> 12) & 0xf;
+
+ reg = nvkm_falcon_rd32(falcon, 0x108);
+ falcon->code.limit = (reg & 0x1ff) << 8;
+ falcon->data.limit = (reg & 0x3fe00) >> 1;
+
+ if (func->debug) {
+ u32 val = nvkm_falcon_rd32(falcon, func->debug);
+ falcon->debug = (val >> 20) & 0x1;
+ }
+
+ return 0;
}
void
@@ -151,6 +187,8 @@
int
nvkm_falcon_get(struct nvkm_falcon *falcon, const struct nvkm_subdev *user)
{
+ int ret = 0;
+
mutex_lock(&falcon->mutex);
if (falcon->user) {
nvkm_error(user, "%s falcon already acquired by %s!\n",
@@ -160,67 +198,37 @@
}
nvkm_debug(user, "acquired %s falcon\n", falcon->name);
+ if (!falcon->oneinit)
+ ret = nvkm_falcon_oneinit(falcon);
falcon->user = user;
mutex_unlock(&falcon->mutex);
- return 0;
+ return ret;
}
void
+nvkm_falcon_dtor(struct nvkm_falcon *falcon)
+{
+}
+
+int
nvkm_falcon_ctor(const struct nvkm_falcon_func *func,
struct nvkm_subdev *subdev, const char *name, u32 addr,
struct nvkm_falcon *falcon)
{
- u32 debug_reg;
- u32 reg;
-
falcon->func = func;
falcon->owner = subdev;
falcon->name = name;
falcon->addr = addr;
mutex_init(&falcon->mutex);
mutex_init(&falcon->dmem_mutex);
-
- reg = nvkm_falcon_rd32(falcon, 0x12c);
- falcon->version = reg & 0xf;
- falcon->secret = (reg >> 4) & 0x3;
- falcon->code.ports = (reg >> 8) & 0xf;
- falcon->data.ports = (reg >> 12) & 0xf;
-
- reg = nvkm_falcon_rd32(falcon, 0x108);
- falcon->code.limit = (reg & 0x1ff) << 8;
- falcon->data.limit = (reg & 0x3fe00) >> 1;
-
- switch (subdev->index) {
- case NVKM_ENGINE_GR:
- debug_reg = 0x0;
- break;
- case NVKM_SUBDEV_PMU:
- debug_reg = 0xc08;
- break;
- case NVKM_ENGINE_NVDEC:
- debug_reg = 0xd00;
- break;
- case NVKM_ENGINE_SEC2:
- debug_reg = 0x408;
- falcon->has_emem = true;
- break;
- default:
- nvkm_warn(subdev, "unsupported falcon %s!\n",
- nvkm_subdev_name[subdev->index]);
- debug_reg = 0;
- break;
- }
-
- if (debug_reg) {
- u32 val = nvkm_falcon_rd32(falcon, debug_reg);
- falcon->debug = (val >> 20) & 0x1;
- }
+ return 0;
}
void
nvkm_falcon_del(struct nvkm_falcon **pfalcon)
{
if (*pfalcon) {
+ nvkm_falcon_dtor(*pfalcon);
kfree(*pfalcon);
*pfalcon = NULL;
}
--
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