Am Freitag, den 09.06.2017, 12:26 +0200 schrieb Christian Gmeiner:
As done by Vivante kernel driver.
Signed-off-by: Christian Gmeiner christian.gmeiner@gmail.com
Reviewed-by: Lucas Stach l.stach@pengutronix.de
drivers/gpu/drm/etnaviv/etnaviv_gpu.c | 13 +++++++++++++ 1 file changed, 13 insertions(+)
diff --git a/drivers/gpu/drm/etnaviv/etnaviv_gpu.c b/drivers/gpu/drm/etnaviv/etnaviv_gpu.c index 2e9f031..1e23472 100644 --- a/drivers/gpu/drm/etnaviv/etnaviv_gpu.c +++ b/drivers/gpu/drm/etnaviv/etnaviv_gpu.c @@ -1329,6 +1329,13 @@ static void sync_point_perfmon_sample(struct etnaviv_gpu *gpu, static void sync_point_perfmon_sample_pre(struct etnaviv_gpu *gpu, struct etnaviv_event *event) {
- u32 val;
- /* disable clock gating */
- val = gpu_read(gpu, VIVS_PM_POWER_CONTROLS);
- val &= ~VIVS_PM_POWER_CONTROLS_ENABLE_MODULE_CLOCK_GATING;
- gpu_write(gpu, VIVS_PM_POWER_CONTROLS, val);
sync_point_perfmon_sample(gpu, event, ETNA_PM_PROCESS_PRE); } @@ -1336,6 +1343,7 @@ static void sync_point_perfmon_sample_post(struct etnaviv_gpu *gpu, struct etnaviv_event *event) { unsigned int i;
- u32 val;
sync_point_perfmon_sample(gpu, event, ETNA_PM_PROCESS_POST); @@ -1344,6 +1352,11 @@ static void sync_point_perfmon_sample_post(struct etnaviv_gpu *gpu, *pmr->bo_vma = pmr->sequence; }
- /* enable clock gating */
- val = gpu_read(gpu, VIVS_PM_POWER_CONTROLS);
- val |= VIVS_PM_POWER_CONTROLS_ENABLE_MODULE_CLOCK_GATING;
- gpu_write(gpu, VIVS_PM_POWER_CONTROLS, val);
}