[PATCH 06/15] drm/radeon/dpm: fill in some initial vce infrastructure

[Christian König]

From: Alex Deucher <alexander.deucher at amd.com>

Signed-off-by: Alex Deucher <alexander.deucher at amd.com>
---
 drivers/gpu/drm/radeon/radeon.h    | 12 ++++++++++++
 drivers/gpu/drm/radeon/radeon_pm.c |  8 ++++++++
 2 files changed, 20 insertions(+)

diff --git a/drivers/gpu/drm/radeon/radeon.h b/drivers/gpu/drm/radeon/radeon.h
index 05fa29e..7edd13a 100644
--- a/drivers/gpu/drm/radeon/radeon.h
+++ b/drivers/gpu/drm/radeon/radeon.h
@@ -1257,6 +1257,15 @@ enum radeon_dpm_event_src {
 	RADEON_DPM_EVENT_SRC_DIGIAL_OR_EXTERNAL = 4
 };
 
+enum radeon_vce_level {
+	RADEON_VCE_LEVEL_AC_ALL = 0,     /* AC, All cases */
+	RADEON_VCE_LEVEL_DC_EE = 1,      /* DC, entropy encoding */
+	RADEON_VCE_LEVEL_DC_LL_LOW = 2,  /* DC, low latency queue, res <= 720 */
+	RADEON_VCE_LEVEL_DC_LL_HIGH = 3, /* DC, low latency queue, 1080 >= res > 720 */
+	RADEON_VCE_LEVEL_DC_GP_LOW = 4,  /* DC, general purpose queue, res <= 720 */
+	RADEON_VCE_LEVEL_DC_GP_HIGH = 5, /* DC, general purpose queue, 1080 >= res > 720 */
+};
+
 struct radeon_ps {
 	u32 caps; /* vbios flags */
 	u32 class; /* vbios flags */
@@ -1267,6 +1276,8 @@ struct radeon_ps {
 	/* VCE clocks */
 	u32 evclk;
 	u32 ecclk;
+	bool vce_active;
+	enum radeon_vce_level vce_level;
 	/* asic priv */
 	void *ps_priv;
 };
@@ -1478,6 +1489,7 @@ struct radeon_dpm {
 	/* special states active */
 	bool                    thermal_active;
 	bool                    uvd_active;
+	bool                    vce_active;
 	/* thermal handling */
 	struct radeon_dpm_thermal thermal;
 	/* forced levels */
diff --git a/drivers/gpu/drm/radeon/radeon_pm.c b/drivers/gpu/drm/radeon/radeon_pm.c
index 8e8153e..a4687e7 100644
--- a/drivers/gpu/drm/radeon/radeon_pm.c
+++ b/drivers/gpu/drm/radeon/radeon_pm.c
@@ -826,6 +826,9 @@ static void radeon_dpm_change_power_state_locked(struct radeon_device *rdev)
 
 	/* no need to reprogram if nothing changed unless we are on BTC+ */
 	if (rdev->pm.dpm.current_ps == rdev->pm.dpm.requested_ps) {
+		/* vce just modifies an existing state so force a change */
+		if (ps->vce_active != rdev->pm.dpm.vce_active)
+			goto force;
 		if ((rdev->family < CHIP_BARTS) || (rdev->flags & RADEON_IS_IGP)) {
 			/* for pre-BTC and APUs if the num crtcs changed but state is the same,
 			 * all we need to do is update the display configuration.
@@ -862,16 +865,21 @@ static void radeon_dpm_change_power_state_locked(struct radeon_device *rdev)
 		}
 	}
 
+force:
 	if (radeon_dpm == 1) {
 		printk("switching from power state:\n");
 		radeon_dpm_print_power_state(rdev, rdev->pm.dpm.current_ps);
 		printk("switching to power state:\n");
 		radeon_dpm_print_power_state(rdev, rdev->pm.dpm.requested_ps);
 	}
+
 	mutex_lock(&rdev->ddev->struct_mutex);
 	down_write(&rdev->pm.mclk_lock);
 	mutex_lock(&rdev->ring_lock);
 
+	/* update whether vce is active */
+	ps->vce_active = rdev->pm.dpm.vce_active;
+
 	ret = radeon_dpm_pre_set_power_state(rdev);
 	if (ret)
 		goto done;
-- 
1.8.3.2