[PATCH 11/18] drm/etnaviv: split out FE start

[Lucas Stach]

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

Signed-off-by: Lucas Stach <l.stach at pengutronix.de>
---
 drivers/gpu/drm/etnaviv/etnaviv_gpu.c | 15 ++++++++++-----
 drivers/gpu/drm/etnaviv/etnaviv_gpu.h |  1 +
 2 files changed, 11 insertions(+), 5 deletions(-)

diff --git a/drivers/gpu/drm/etnaviv/etnaviv_gpu.c b/drivers/gpu/drm/etnaviv/etnaviv_gpu.c
index 46b1775969c9..fe541a3cdc10 100644
--- a/drivers/gpu/drm/etnaviv/etnaviv_gpu.c
+++ b/drivers/gpu/drm/etnaviv/etnaviv_gpu.c
@@ -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)
diff --git a/drivers/gpu/drm/etnaviv/etnaviv_gpu.h b/drivers/gpu/drm/etnaviv/etnaviv_gpu.h
index 303450b1f981..7a10a9c32a70 100644
--- a/drivers/gpu/drm/etnaviv/etnaviv_gpu.h
+++ b/drivers/gpu/drm/etnaviv/etnaviv_gpu.h
@@ -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;
 
-- 
2.8.1