On Fri, 2019-07-05 at 19:17 +0200, Lucas Stach wrote:
> 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.st...@pengutronix.de>
> ---
> drivers/gpu/drm/etnaviv/etnaviv_gpu.c | 26 ++++++++++++++++----------
> 1 file changed, 16 insertions(+), 10 deletions(-)
>
> diff --git a/drivers/gpu/drm/etnaviv/etnaviv_gpu.c
> b/drivers/gpu/drm/etnaviv/etnaviv_gpu.c
> index a53fecd17fa9..b46d8207f6e6 100644
> --- a/drivers/gpu/drm/etnaviv/etnaviv_gpu.c
> +++ b/drivers/gpu/drm/etnaviv/etnaviv_gpu.c
> @@ -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);
> +
> + /* 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);
> -
> - /* 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)
Reviewed-by: Philipp Zabel <p.za...@pengutronix.de>
regards
Philipp
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