diff options
Diffstat (limited to 'drivers/gpu/nvgpu/common/falcon')
-rw-r--r-- | drivers/gpu/nvgpu/common/falcon/falcon.c | 28 |
1 files changed, 28 insertions, 0 deletions
diff --git a/drivers/gpu/nvgpu/common/falcon/falcon.c b/drivers/gpu/nvgpu/common/falcon/falcon.c index ba2fb3fe..3795dd09 100644 --- a/drivers/gpu/nvgpu/common/falcon/falcon.c +++ b/drivers/gpu/nvgpu/common/falcon/falcon.c | |||
@@ -122,6 +122,34 @@ int nvgpu_flcn_wait_for_halt(struct nvgpu_falcon *flcn, unsigned int timeout) | |||
122 | return status; | 122 | return status; |
123 | } | 123 | } |
124 | 124 | ||
125 | int nvgpu_flcn_clear_halt_intr_status(struct nvgpu_falcon *flcn, | ||
126 | unsigned int timeout) | ||
127 | { | ||
128 | struct gk20a *g = flcn->g; | ||
129 | struct nvgpu_falcon_ops *flcn_ops = &flcn->flcn_ops; | ||
130 | struct nvgpu_timeout to; | ||
131 | int status = 0; | ||
132 | |||
133 | if (!flcn_ops->clear_halt_interrupt_status) { | ||
134 | nvgpu_warn(flcn->g, "Invalid op on falcon 0x%x ", | ||
135 | flcn->flcn_id); | ||
136 | return -EINVAL; | ||
137 | } | ||
138 | |||
139 | nvgpu_timeout_init(g, &to, timeout, NVGPU_TIMER_CPU_TIMER); | ||
140 | do { | ||
141 | if (flcn_ops->clear_halt_interrupt_status(flcn)) | ||
142 | break; | ||
143 | |||
144 | nvgpu_udelay(1); | ||
145 | } while (!nvgpu_timeout_expired(&to)); | ||
146 | |||
147 | if (nvgpu_timeout_peek_expired(&to)) | ||
148 | status = -EBUSY; | ||
149 | |||
150 | return status; | ||
151 | } | ||
152 | |||
125 | bool nvgpu_flcn_get_idle_status(struct nvgpu_falcon *flcn) | 153 | bool nvgpu_flcn_get_idle_status(struct nvgpu_falcon *flcn) |
126 | { | 154 | { |
127 | struct nvgpu_falcon_ops *flcn_ops = &flcn->flcn_ops; | 155 | struct nvgpu_falcon_ops *flcn_ops = &flcn->flcn_ops; |