Otherwise a thermal throttling request may disable the debug
registers again, while the profiled commandstream is in flight
on the GPU.
Signed-off-by: Christian Gmeiner <christian.gmeiner@xxxxxxxxx>
---
drivers/gpu/drm/etnaviv/etnaviv_gpu.c | 9 +++++++--
1 file changed, 7 insertions(+), 2 deletions(-)
diff --git a/drivers/gpu/drm/etnaviv/etnaviv_gpu.c b/drivers/gpu/drm/etnaviv/etnaviv_gpu.c
index 83dd485c6d45..cfe6c76d077e 100644
--- a/drivers/gpu/drm/etnaviv/etnaviv_gpu.c
+++ b/drivers/gpu/drm/etnaviv/etnaviv_gpu.c
@@ -421,8 +421,7 @@ static void etnaviv_gpu_update_clock(struct etnaviv_gpu *gpu)
gpu->base_rate_shader >> gpu->freq_scale);
} else {
unsigned int fscale = 1 << (6 - gpu->freq_scale);
- u32 clock = VIVS_HI_CLOCK_CONTROL_DISABLE_DEBUG_REGISTERS |
- VIVS_HI_CLOCK_CONTROL_FSCALE_VAL(fscale);
+ u32 clock = VIVS_HI_CLOCK_CONTROL_FSCALE_VAL(fscale);
etnaviv_gpu_load_clock(gpu, clock);
}
@@ -601,6 +600,7 @@ static void etnaviv_gpu_setup_pulse_eater(struct etnaviv_gpu *gpu)
static void etnaviv_gpu_hw_init(struct etnaviv_gpu *gpu)
{
+ u32 val;
u16 prefetch;
if ((etnaviv_is_model_rev(gpu, GC320, 0x5007) ||
@@ -621,6 +621,11 @@ static void etnaviv_gpu_hw_init(struct etnaviv_gpu *gpu)
/* enable module-level clock gating */
etnaviv_gpu_enable_mlcg(gpu);
+ /* disable debug register */
+ val = gpu_read(gpu, VIVS_HI_CLOCK_CONTROL);
+ val |= VIVS_HI_CLOCK_CONTROL_DISABLE_DEBUG_REGISTERS;
+ gpu_write(gpu, VIVS_HI_CLOCK_CONTROL, val);
+
/*
* Update GPU AXI cache atttribute to "cacheable, no allocate".
* This is necessary to prevent the iMX6 SoC locking up.
--
2.13.5
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