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drm/etnaviv: split out starting of FE idle loop 

Move buffer setup and starting of the FE loop in the kernel ringbuffer
into a separate function. This is a preparation to start the FE later
in the submit process.

Signed-off-by: Lucas Stach <l.stach@pengutronix.de>
Reviewed-by: Philipp Zabel <p.zabel@pengutronix.de>
Reviewed-by: Guido Günther <agx@sigxcpu.org>
This commit is contained in:
Lucas Stach 2019-07-05 19:17:25 +02:00
parent 27b67278e0
commit d80d842a47
1 changed files with 16 additions and 10 deletions
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26
drivers/gpu/drm/etnaviv/etnaviv_gpu.c
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@ -600,6 +600,20 @@ void etnaviv_gpu_start_fe(struct etnaviv_gpu *gpu, u32 address, u16 prefetch)
}
}
static void etnaviv_gpu_start_fe_idleloop(struct etnaviv_gpu *gpu)
{
u32 address = etnaviv_cmdbuf_get_va(&gpu->buffer, &gpu->cmdbuf_mapping);
u16 prefetch;
/* setup the MMU */
etnaviv_iommu_restore(gpu, gpu->mmu_context);
/* Start command processor */
prefetch = etnaviv_buffer_init(gpu);
etnaviv_gpu_start_fe(gpu, address, prefetch);
}
static void etnaviv_gpu_setup_pulse_eater(struct etnaviv_gpu *gpu)
{
/*
@ -633,8 +647,6 @@ static void etnaviv_gpu_setup_pulse_eater(struct etnaviv_gpu *gpu)
static void etnaviv_gpu_hw_init(struct etnaviv_gpu *gpu)
{
u16 prefetch;
if ((etnaviv_is_model_rev(gpu, GC320, 0x5007) ||
etnaviv_is_model_rev(gpu, GC320, 0x5220)) &&
gpu_read(gpu, VIVS_HI_CHIP_TIME) != 0x2062400) {
@ -680,15 +692,9 @@ static void etnaviv_gpu_hw_init(struct etnaviv_gpu *gpu)
/* setup the pulse eater */
etnaviv_gpu_setup_pulse_eater(gpu);
/* setup the MMU */
etnaviv_iommu_restore(gpu, gpu->mmu_context);
/* Start command processor */
prefetch = etnaviv_buffer_init(gpu);
gpu_write(gpu, VIVS_HI_INTR_ENBL, ~0U);
etnaviv_gpu_start_fe(gpu, etnaviv_cmdbuf_get_va(&gpu->buffer,
&gpu->cmdbuf_mapping), prefetch);
etnaviv_gpu_start_fe_idleloop(gpu);
}
int etnaviv_gpu_init(struct etnaviv_gpu *gpu)