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drm/etnaviv: split out FE start

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Split out into a new externally visible function, as the IOMMUv2
code needs this functionality, too.

Signed-off-by: Lucas Stach <l.stach@pengutronix.de>
This commit is contained in:
Lucas Stach 2016-08-17 15:27:52 +02:00
parent b88163e36c
commit 229855b650
2 changed files with 11 additions and 5 deletions
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15
drivers/gpu/drm/etnaviv/etnaviv_gpu.c
View file

@ -526,6 +526,14 @@ static void etnaviv_gpu_enable_mlcg(struct etnaviv_gpu *gpu)
gpu_write(gpu, VIVS_PM_MODULE_CONTROLS, pmc);
}
void etnaviv_gpu_start_fe(struct etnaviv_gpu *gpu, u32 address, u16 prefetch)
{
gpu_write(gpu, VIVS_FE_COMMAND_ADDRESS, address);
gpu_write(gpu, VIVS_FE_COMMAND_CONTROL,
VIVS_FE_COMMAND_CONTROL_ENABLE |
VIVS_FE_COMMAND_CONTROL_PREFETCH(prefetch));
}
static void etnaviv_gpu_hw_init(struct etnaviv_gpu *gpu)
{
u16 prefetch;
@ -573,11 +581,8 @@ static void etnaviv_gpu_hw_init(struct etnaviv_gpu *gpu)
prefetch = etnaviv_buffer_init(gpu);
gpu_write(gpu, VIVS_HI_INTR_ENBL, ~0U);
gpu_write(gpu, VIVS_FE_COMMAND_ADDRESS,
etnaviv_iommu_get_cmdbuf_va(gpu, gpu->buffer));
gpu_write(gpu, VIVS_FE_COMMAND_CONTROL,
VIVS_FE_COMMAND_CONTROL_ENABLE |
VIVS_FE_COMMAND_CONTROL_PREFETCH(prefetch));
etnaviv_gpu_start_fe(gpu, etnaviv_iommu_get_cmdbuf_va(gpu, gpu->buffer),
prefetch);
}
int etnaviv_gpu_init(struct etnaviv_gpu *gpu)

1
drivers/gpu/drm/etnaviv/etnaviv_gpu.h
View file

@ -215,6 +215,7 @@ void etnaviv_gpu_cmdbuf_free(struct etnaviv_cmdbuf *cmdbuf);
int etnaviv_gpu_pm_get_sync(struct etnaviv_gpu *gpu);
void etnaviv_gpu_pm_put(struct etnaviv_gpu *gpu);
int etnaviv_gpu_wait_idle(struct etnaviv_gpu *gpu, unsigned int timeout_ms);
void etnaviv_gpu_start_fe(struct etnaviv_gpu *gpu, u32 address, u16 prefetch);
extern struct platform_driver etnaviv_gpu_driver;