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From: Alex Deucher <alexdeucher@gmail.com>
To: dri-devel@lists.freedesktop.org
Cc: Tom St Denis <tom.stdenis@amd.com>,
	Alex Deucher <alexander.deucher@amd.com>
Subject: [PATCH] drm/amd/amdgpu: Add SW clock gating support to UVD 5 and 6
Date: Mon,  2 May 2016 16:00:15 -0400	[thread overview]
Message-ID: <1462219259-29806-3-git-send-email-alexander.deucher@amd.com> (raw)
In-Reply-To: <1462219259-29806-1-git-send-email-alexander.deucher@amd.com>

From: Tom St Denis <tom.stdenis@amd.com>

This patch adds support for software clock gating to UVD 5
and UVD 6 blocks with a preliminary commented out hardware
gating routine.

Currently hardware gating does not work so it's not activated.

Signed-off-by: Tom St Denis <tom.stdenis@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
---
 drivers/gpu/drm/amd/amdgpu/uvd_v5_0.c | 115 ++++++++++++++
 drivers/gpu/drm/amd/amdgpu/uvd_v6_0.c | 281 ++++++++++++++--------------------
 2 files changed, 232 insertions(+), 164 deletions(-)

diff --git a/drivers/gpu/drm/amd/amdgpu/uvd_v5_0.c b/drivers/gpu/drm/amd/amdgpu/uvd_v5_0.c
index 16476d8..de459c8 100644
--- a/drivers/gpu/drm/amd/amdgpu/uvd_v5_0.c
+++ b/drivers/gpu/drm/amd/amdgpu/uvd_v5_0.c
@@ -31,6 +31,7 @@
 #include "uvd/uvd_5_0_sh_mask.h"
 #include "oss/oss_2_0_d.h"
 #include "oss/oss_2_0_sh_mask.h"
+#include "vi.h"
 
 static void uvd_v5_0_set_ring_funcs(struct amdgpu_device *adev);
 static void uvd_v5_0_set_irq_funcs(struct amdgpu_device *adev);
@@ -754,14 +755,128 @@ static int uvd_v5_0_process_interrupt(struct amdgpu_device *adev,
 	return 0;
 }
 
+static void uvd_v5_0_set_sw_clock_gating(struct amdgpu_device *adev)
+{
+	uint32_t data, data1, data2, suvd_flags;
+
+	data = RREG32(mmUVD_CGC_CTRL);
+	data1 = RREG32(mmUVD_SUVD_CGC_GATE);
+	data2 = RREG32(mmUVD_SUVD_CGC_CTRL);
+
+	data &= ~(UVD_CGC_CTRL__CLK_OFF_DELAY_MASK |
+		  UVD_CGC_CTRL__CLK_GATE_DLY_TIMER_MASK);
+
+	suvd_flags = UVD_SUVD_CGC_GATE__SRE_MASK |
+		     UVD_SUVD_CGC_GATE__SIT_MASK |
+		     UVD_SUVD_CGC_GATE__SMP_MASK |
+		     UVD_SUVD_CGC_GATE__SCM_MASK |
+		     UVD_SUVD_CGC_GATE__SDB_MASK;
+
+	data |= UVD_CGC_CTRL__DYN_CLOCK_MODE_MASK |
+		(1 << REG_FIELD_SHIFT(UVD_CGC_CTRL, CLK_GATE_DLY_TIMER)) |
+		(4 << REG_FIELD_SHIFT(UVD_CGC_CTRL, CLK_OFF_DELAY));
+
+	data &= ~(UVD_CGC_CTRL__UDEC_RE_MODE_MASK |
+			UVD_CGC_CTRL__UDEC_CM_MODE_MASK |
+			UVD_CGC_CTRL__UDEC_IT_MODE_MASK |
+			UVD_CGC_CTRL__UDEC_DB_MODE_MASK |
+			UVD_CGC_CTRL__UDEC_MP_MODE_MASK |
+			UVD_CGC_CTRL__SYS_MODE_MASK |
+			UVD_CGC_CTRL__UDEC_MODE_MASK |
+			UVD_CGC_CTRL__MPEG2_MODE_MASK |
+			UVD_CGC_CTRL__REGS_MODE_MASK |
+			UVD_CGC_CTRL__RBC_MODE_MASK |
+			UVD_CGC_CTRL__LMI_MC_MODE_MASK |
+			UVD_CGC_CTRL__LMI_UMC_MODE_MASK |
+			UVD_CGC_CTRL__IDCT_MODE_MASK |
+			UVD_CGC_CTRL__MPRD_MODE_MASK |
+			UVD_CGC_CTRL__MPC_MODE_MASK |
+			UVD_CGC_CTRL__LBSI_MODE_MASK |
+			UVD_CGC_CTRL__LRBBM_MODE_MASK |
+			UVD_CGC_CTRL__WCB_MODE_MASK |
+			UVD_CGC_CTRL__VCPU_MODE_MASK |
+			UVD_CGC_CTRL__JPEG_MODE_MASK |
+			UVD_CGC_CTRL__SCPU_MODE_MASK);
+	data2 &= ~(UVD_SUVD_CGC_CTRL__SRE_MODE_MASK |
+			UVD_SUVD_CGC_CTRL__SIT_MODE_MASK |
+			UVD_SUVD_CGC_CTRL__SMP_MODE_MASK |
+			UVD_SUVD_CGC_CTRL__SCM_MODE_MASK |
+			UVD_SUVD_CGC_CTRL__SDB_MODE_MASK);
+	data1 |= suvd_flags;
+
+	WREG32(mmUVD_CGC_CTRL, data);
+	WREG32(mmUVD_CGC_GATE, 0);
+	WREG32(mmUVD_SUVD_CGC_GATE, data1);
+	WREG32(mmUVD_SUVD_CGC_CTRL, data2);
+}
+
+#if 0
+static void uvd_v5_0_set_hw_clock_gating(struct amdgpu_device *adev)
+{
+	uint32_t data, data1, cgc_flags, suvd_flags;
+
+	data = RREG32(mmUVD_CGC_GATE);
+	data1 = RREG32(mmUVD_SUVD_CGC_GATE);
+
+	cgc_flags = UVD_CGC_GATE__SYS_MASK |
+				UVD_CGC_GATE__UDEC_MASK |
+				UVD_CGC_GATE__MPEG2_MASK |
+				UVD_CGC_GATE__RBC_MASK |
+				UVD_CGC_GATE__LMI_MC_MASK |
+				UVD_CGC_GATE__IDCT_MASK |
+				UVD_CGC_GATE__MPRD_MASK |
+				UVD_CGC_GATE__MPC_MASK |
+				UVD_CGC_GATE__LBSI_MASK |
+				UVD_CGC_GATE__LRBBM_MASK |
+				UVD_CGC_GATE__UDEC_RE_MASK |
+				UVD_CGC_GATE__UDEC_CM_MASK |
+				UVD_CGC_GATE__UDEC_IT_MASK |
+				UVD_CGC_GATE__UDEC_DB_MASK |
+				UVD_CGC_GATE__UDEC_MP_MASK |
+				UVD_CGC_GATE__WCB_MASK |
+				UVD_CGC_GATE__VCPU_MASK |
+				UVD_CGC_GATE__SCPU_MASK;
+
+	suvd_flags = UVD_SUVD_CGC_GATE__SRE_MASK |
+				UVD_SUVD_CGC_GATE__SIT_MASK |
+				UVD_SUVD_CGC_GATE__SMP_MASK |
+				UVD_SUVD_CGC_GATE__SCM_MASK |
+				UVD_SUVD_CGC_GATE__SDB_MASK;
+
+	data |= cgc_flags;
+	data1 |= suvd_flags;
+
+	WREG32(mmUVD_CGC_GATE, data);
+	WREG32(mmUVD_SUVD_CGC_GATE, data1);
+}
+#endif
+
 static int uvd_v5_0_set_clockgating_state(void *handle,
 					  enum amd_clockgating_state state)
 {
 	struct amdgpu_device *adev = (struct amdgpu_device *)handle;
+	bool enable = (state == AMD_CG_STATE_GATE) ? true : false;
+	static int curstate = -1;
 
 	if (!(adev->cg_flags & AMD_CG_SUPPORT_UVD_MGCG))
 		return 0;
 
+	if (curstate == state)
+		return 0;
+
+	curstate = state;
+	if (enable) {
+		/* disable HW gating and enable Sw gating */
+		uvd_v5_0_set_sw_clock_gating(adev);
+	} else {
+		/* wait for STATUS to clear */
+		if (uvd_v5_0_wait_for_idle(handle))
+			return -EBUSY;
+
+		/* enable HW gates because UVD is idle */
+/*		uvd_v5_0_set_hw_clock_gating(adev); */
+	}
+
 	return 0;
 }
 
diff --git a/drivers/gpu/drm/amd/amdgpu/uvd_v6_0.c b/drivers/gpu/drm/amd/amdgpu/uvd_v6_0.c
index d493791..372d70a 100644
--- a/drivers/gpu/drm/amd/amdgpu/uvd_v6_0.c
+++ b/drivers/gpu/drm/amd/amdgpu/uvd_v6_0.c
@@ -31,11 +31,13 @@
 #include "uvd/uvd_6_0_sh_mask.h"
 #include "oss/oss_2_0_d.h"
 #include "oss/oss_2_0_sh_mask.h"
+#include "vi.h"
 
 static void uvd_v6_0_set_ring_funcs(struct amdgpu_device *adev);
 static void uvd_v6_0_set_irq_funcs(struct amdgpu_device *adev);
 static int uvd_v6_0_start(struct amdgpu_device *adev);
 static void uvd_v6_0_stop(struct amdgpu_device *adev);
+static void uvd_v6_0_set_sw_clock_gating(struct amdgpu_device *adev);
 
 /**
  * uvd_v6_0_ring_get_rptr - get read pointer
@@ -284,6 +286,7 @@ static void uvd_v6_0_mc_resume(struct amdgpu_device *adev)
 	WREG32(mmUVD_UDEC_DBW_ADDR_CONFIG, adev->gfx.config.gb_addr_config);
 }
 
+#if 0
 static void cz_set_uvd_clock_gating_branches(struct amdgpu_device *adev,
 		bool enable)
 {
@@ -360,157 +363,7 @@ static void cz_set_uvd_clock_gating_branches(struct amdgpu_device *adev,
 	WREG32(mmUVD_CGC_GATE, data);
 	WREG32(mmUVD_SUVD_CGC_GATE, data1);
 }
-
-static void tonga_set_uvd_clock_gating_branches(struct amdgpu_device *adev,
-		bool enable)
-{
-	u32 data, data1;
-
-	data = RREG32(mmUVD_CGC_GATE);
-	data1 = RREG32(mmUVD_SUVD_CGC_GATE);
-	if (enable) {
-		data |= UVD_CGC_GATE__SYS_MASK |
-				UVD_CGC_GATE__UDEC_MASK |
-				UVD_CGC_GATE__MPEG2_MASK |
-				UVD_CGC_GATE__RBC_MASK |
-				UVD_CGC_GATE__LMI_MC_MASK |
-				UVD_CGC_GATE__IDCT_MASK |
-				UVD_CGC_GATE__MPRD_MASK |
-				UVD_CGC_GATE__MPC_MASK |
-				UVD_CGC_GATE__LBSI_MASK |
-				UVD_CGC_GATE__LRBBM_MASK |
-				UVD_CGC_GATE__UDEC_RE_MASK |
-				UVD_CGC_GATE__UDEC_CM_MASK |
-				UVD_CGC_GATE__UDEC_IT_MASK |
-				UVD_CGC_GATE__UDEC_DB_MASK |
-				UVD_CGC_GATE__UDEC_MP_MASK |
-				UVD_CGC_GATE__WCB_MASK |
-				UVD_CGC_GATE__VCPU_MASK |
-				UVD_CGC_GATE__SCPU_MASK;
-		data1 |= UVD_SUVD_CGC_GATE__SRE_MASK |
-				UVD_SUVD_CGC_GATE__SIT_MASK |
-				UVD_SUVD_CGC_GATE__SMP_MASK |
-				UVD_SUVD_CGC_GATE__SCM_MASK |
-				UVD_SUVD_CGC_GATE__SDB_MASK;
-	} else {
-		data &= ~(UVD_CGC_GATE__SYS_MASK |
-				UVD_CGC_GATE__UDEC_MASK |
-				UVD_CGC_GATE__MPEG2_MASK |
-				UVD_CGC_GATE__RBC_MASK |
-				UVD_CGC_GATE__LMI_MC_MASK |
-				UVD_CGC_GATE__LMI_UMC_MASK |
-				UVD_CGC_GATE__IDCT_MASK |
-				UVD_CGC_GATE__MPRD_MASK |
-				UVD_CGC_GATE__MPC_MASK |
-				UVD_CGC_GATE__LBSI_MASK |
-				UVD_CGC_GATE__LRBBM_MASK |
-				UVD_CGC_GATE__UDEC_RE_MASK |
-				UVD_CGC_GATE__UDEC_CM_MASK |
-				UVD_CGC_GATE__UDEC_IT_MASK |
-				UVD_CGC_GATE__UDEC_DB_MASK |
-				UVD_CGC_GATE__UDEC_MP_MASK |
-				UVD_CGC_GATE__WCB_MASK |
-				UVD_CGC_GATE__VCPU_MASK |
-				UVD_CGC_GATE__SCPU_MASK);
-		data1 &= ~(UVD_SUVD_CGC_GATE__SRE_MASK |
-				UVD_SUVD_CGC_GATE__SIT_MASK |
-				UVD_SUVD_CGC_GATE__SMP_MASK |
-				UVD_SUVD_CGC_GATE__SCM_MASK |
-				UVD_SUVD_CGC_GATE__SDB_MASK);
-	}
-	WREG32(mmUVD_CGC_GATE, data);
-	WREG32(mmUVD_SUVD_CGC_GATE, data1);
-}
-
-static void uvd_v6_0_set_uvd_dynamic_clock_mode(struct amdgpu_device *adev,
-		bool swmode)
-{
-	u32 data, data1 = 0, data2;
-
-	/* Always un-gate UVD REGS bit */
-	data = RREG32(mmUVD_CGC_GATE);
-	data &= ~(UVD_CGC_GATE__REGS_MASK);
-	WREG32(mmUVD_CGC_GATE, data);
-
-	data = RREG32(mmUVD_CGC_CTRL);
-	data &= ~(UVD_CGC_CTRL__CLK_OFF_DELAY_MASK |
-			UVD_CGC_CTRL__CLK_GATE_DLY_TIMER_MASK);
-	data |= UVD_CGC_CTRL__DYN_CLOCK_MODE_MASK |
-			1 << REG_FIELD_SHIFT(UVD_CGC_CTRL, CLK_GATE_DLY_TIMER) |
-			4 << REG_FIELD_SHIFT(UVD_CGC_CTRL, CLK_OFF_DELAY);
-
-	data2 = RREG32(mmUVD_SUVD_CGC_CTRL);
-	if (swmode) {
-		data &= ~(UVD_CGC_CTRL__UDEC_RE_MODE_MASK |
-				UVD_CGC_CTRL__UDEC_CM_MODE_MASK |
-				UVD_CGC_CTRL__UDEC_IT_MODE_MASK |
-				UVD_CGC_CTRL__UDEC_DB_MODE_MASK |
-				UVD_CGC_CTRL__UDEC_MP_MODE_MASK |
-				UVD_CGC_CTRL__SYS_MODE_MASK |
-				UVD_CGC_CTRL__UDEC_MODE_MASK |
-				UVD_CGC_CTRL__MPEG2_MODE_MASK |
-				UVD_CGC_CTRL__REGS_MODE_MASK |
-				UVD_CGC_CTRL__RBC_MODE_MASK |
-				UVD_CGC_CTRL__LMI_MC_MODE_MASK |
-				UVD_CGC_CTRL__LMI_UMC_MODE_MASK |
-				UVD_CGC_CTRL__IDCT_MODE_MASK |
-				UVD_CGC_CTRL__MPRD_MODE_MASK |
-				UVD_CGC_CTRL__MPC_MODE_MASK |
-				UVD_CGC_CTRL__LBSI_MODE_MASK |
-				UVD_CGC_CTRL__LRBBM_MODE_MASK |
-				UVD_CGC_CTRL__WCB_MODE_MASK |
-				UVD_CGC_CTRL__VCPU_MODE_MASK |
-				UVD_CGC_CTRL__JPEG_MODE_MASK |
-				UVD_CGC_CTRL__SCPU_MODE_MASK);
-		data1 |= UVD_CGC_CTRL2__DYN_OCLK_RAMP_EN_MASK |
-				UVD_CGC_CTRL2__DYN_RCLK_RAMP_EN_MASK;
-		data1 &= ~UVD_CGC_CTRL2__GATER_DIV_ID_MASK;
-		data1 |= 7 << REG_FIELD_SHIFT(UVD_CGC_CTRL2, GATER_DIV_ID);
-		data2 &= ~(UVD_SUVD_CGC_CTRL__SRE_MODE_MASK |
-				UVD_SUVD_CGC_CTRL__SIT_MODE_MASK |
-				UVD_SUVD_CGC_CTRL__SMP_MODE_MASK |
-				UVD_SUVD_CGC_CTRL__SCM_MODE_MASK |
-				UVD_SUVD_CGC_CTRL__SDB_MODE_MASK);
-	} else {
-		data |= UVD_CGC_CTRL__UDEC_RE_MODE_MASK |
-				UVD_CGC_CTRL__UDEC_CM_MODE_MASK |
-				UVD_CGC_CTRL__UDEC_IT_MODE_MASK |
-				UVD_CGC_CTRL__UDEC_DB_MODE_MASK |
-				UVD_CGC_CTRL__UDEC_MP_MODE_MASK |
-				UVD_CGC_CTRL__SYS_MODE_MASK |
-				UVD_CGC_CTRL__UDEC_MODE_MASK |
-				UVD_CGC_CTRL__MPEG2_MODE_MASK |
-				UVD_CGC_CTRL__REGS_MODE_MASK |
-				UVD_CGC_CTRL__RBC_MODE_MASK |
-				UVD_CGC_CTRL__LMI_MC_MODE_MASK |
-				UVD_CGC_CTRL__LMI_UMC_MODE_MASK |
-				UVD_CGC_CTRL__IDCT_MODE_MASK |
-				UVD_CGC_CTRL__MPRD_MODE_MASK |
-				UVD_CGC_CTRL__MPC_MODE_MASK |
-				UVD_CGC_CTRL__LBSI_MODE_MASK |
-				UVD_CGC_CTRL__LRBBM_MODE_MASK |
-				UVD_CGC_CTRL__WCB_MODE_MASK |
-				UVD_CGC_CTRL__VCPU_MODE_MASK |
-				UVD_CGC_CTRL__SCPU_MODE_MASK;
-		data2 |= UVD_SUVD_CGC_CTRL__SRE_MODE_MASK |
-				UVD_SUVD_CGC_CTRL__SIT_MODE_MASK |
-				UVD_SUVD_CGC_CTRL__SMP_MODE_MASK |
-				UVD_SUVD_CGC_CTRL__SCM_MODE_MASK |
-				UVD_SUVD_CGC_CTRL__SDB_MODE_MASK;
-	}
-	WREG32(mmUVD_CGC_CTRL, data);
-	WREG32(mmUVD_SUVD_CGC_CTRL, data2);
-
-	data = RREG32_UVD_CTX(ixUVD_CGC_CTRL2);
-	data &= ~(REG_FIELD_MASK(UVD_CGC_CTRL2, DYN_OCLK_RAMP_EN) |
-			REG_FIELD_MASK(UVD_CGC_CTRL2, DYN_RCLK_RAMP_EN) |
-			REG_FIELD_MASK(UVD_CGC_CTRL2, GATER_DIV_ID));
-	data1 &= (REG_FIELD_MASK(UVD_CGC_CTRL2, DYN_OCLK_RAMP_EN) |
-			REG_FIELD_MASK(UVD_CGC_CTRL2, DYN_RCLK_RAMP_EN) |
-			REG_FIELD_MASK(UVD_CGC_CTRL2, GATER_DIV_ID));
-	data |= data1;
-	WREG32_UVD_CTX(ixUVD_CGC_CTRL2, data);
-}
+#endif
 
 /**
  * uvd_v6_0_start - start UVD block
@@ -538,11 +391,7 @@ static int uvd_v6_0_start(struct amdgpu_device *adev)
 
 	/* Set dynamic clock gating in S/W control mode */
 	if (adev->cg_flags & AMD_CG_SUPPORT_UVD_MGCG) {
-		if (adev->flags & AMD_IS_APU)
-			cz_set_uvd_clock_gating_branches(adev, false);
-		else
-			tonga_set_uvd_clock_gating_branches(adev, false);
-		uvd_v6_0_set_uvd_dynamic_clock_mode(adev, true);
+		uvd_v6_0_set_sw_clock_gating(adev);
 	} else {
 		/* disable clock gating */
 		uint32_t data = RREG32(mmUVD_CGC_CTRL);
@@ -978,25 +827,129 @@ static int uvd_v6_0_process_interrupt(struct amdgpu_device *adev,
 	return 0;
 }
 
+static void uvd_v6_0_set_sw_clock_gating(struct amdgpu_device *adev)
+{
+	uint32_t data, data1, data2, suvd_flags;
+
+	data = RREG32(mmUVD_CGC_CTRL);
+	data1 = RREG32(mmUVD_SUVD_CGC_GATE);
+	data2 = RREG32(mmUVD_SUVD_CGC_CTRL);
+
+	data &= ~(UVD_CGC_CTRL__CLK_OFF_DELAY_MASK |
+		  UVD_CGC_CTRL__CLK_GATE_DLY_TIMER_MASK);
+
+	suvd_flags = UVD_SUVD_CGC_GATE__SRE_MASK |
+		     UVD_SUVD_CGC_GATE__SIT_MASK |
+		     UVD_SUVD_CGC_GATE__SMP_MASK |
+		     UVD_SUVD_CGC_GATE__SCM_MASK |
+		     UVD_SUVD_CGC_GATE__SDB_MASK;
+
+	data |= UVD_CGC_CTRL__DYN_CLOCK_MODE_MASK |
+		(1 << REG_FIELD_SHIFT(UVD_CGC_CTRL, CLK_GATE_DLY_TIMER)) |
+		(4 << REG_FIELD_SHIFT(UVD_CGC_CTRL, CLK_OFF_DELAY));
+
+	data &= ~(UVD_CGC_CTRL__UDEC_RE_MODE_MASK |
+			UVD_CGC_CTRL__UDEC_CM_MODE_MASK |
+			UVD_CGC_CTRL__UDEC_IT_MODE_MASK |
+			UVD_CGC_CTRL__UDEC_DB_MODE_MASK |
+			UVD_CGC_CTRL__UDEC_MP_MODE_MASK |
+			UVD_CGC_CTRL__SYS_MODE_MASK |
+			UVD_CGC_CTRL__UDEC_MODE_MASK |
+			UVD_CGC_CTRL__MPEG2_MODE_MASK |
+			UVD_CGC_CTRL__REGS_MODE_MASK |
+			UVD_CGC_CTRL__RBC_MODE_MASK |
+			UVD_CGC_CTRL__LMI_MC_MODE_MASK |
+			UVD_CGC_CTRL__LMI_UMC_MODE_MASK |
+			UVD_CGC_CTRL__IDCT_MODE_MASK |
+			UVD_CGC_CTRL__MPRD_MODE_MASK |
+			UVD_CGC_CTRL__MPC_MODE_MASK |
+			UVD_CGC_CTRL__LBSI_MODE_MASK |
+			UVD_CGC_CTRL__LRBBM_MODE_MASK |
+			UVD_CGC_CTRL__WCB_MODE_MASK |
+			UVD_CGC_CTRL__VCPU_MODE_MASK |
+			UVD_CGC_CTRL__JPEG_MODE_MASK |
+			UVD_CGC_CTRL__SCPU_MODE_MASK |
+			UVD_CGC_CTRL__JPEG2_MODE_MASK);
+	data2 &= ~(UVD_SUVD_CGC_CTRL__SRE_MODE_MASK |
+			UVD_SUVD_CGC_CTRL__SIT_MODE_MASK |
+			UVD_SUVD_CGC_CTRL__SMP_MODE_MASK |
+			UVD_SUVD_CGC_CTRL__SCM_MODE_MASK |
+			UVD_SUVD_CGC_CTRL__SDB_MODE_MASK);
+	data1 |= suvd_flags;
+
+	WREG32(mmUVD_CGC_CTRL, data);
+	WREG32(mmUVD_CGC_GATE, 0);
+	WREG32(mmUVD_SUVD_CGC_GATE, data1);
+	WREG32(mmUVD_SUVD_CGC_CTRL, data2);
+}
+
+#if 0
+static void uvd_v6_0_set_hw_clock_gating(struct amdgpu_device *adev)
+{
+	uint32_t data, data1, cgc_flags, suvd_flags;
+
+	data = RREG32(mmUVD_CGC_GATE);
+	data1 = RREG32(mmUVD_SUVD_CGC_GATE);
+
+	cgc_flags = UVD_CGC_GATE__SYS_MASK |
+		UVD_CGC_GATE__UDEC_MASK |
+		UVD_CGC_GATE__MPEG2_MASK |
+		UVD_CGC_GATE__RBC_MASK |
+		UVD_CGC_GATE__LMI_MC_MASK |
+		UVD_CGC_GATE__IDCT_MASK |
+		UVD_CGC_GATE__MPRD_MASK |
+		UVD_CGC_GATE__MPC_MASK |
+		UVD_CGC_GATE__LBSI_MASK |
+		UVD_CGC_GATE__LRBBM_MASK |
+		UVD_CGC_GATE__UDEC_RE_MASK |
+		UVD_CGC_GATE__UDEC_CM_MASK |
+		UVD_CGC_GATE__UDEC_IT_MASK |
+		UVD_CGC_GATE__UDEC_DB_MASK |
+		UVD_CGC_GATE__UDEC_MP_MASK |
+		UVD_CGC_GATE__WCB_MASK |
+		UVD_CGC_GATE__VCPU_MASK |
+		UVD_CGC_GATE__SCPU_MASK |
+		UVD_CGC_GATE__JPEG_MASK |
+		UVD_CGC_GATE__JPEG2_MASK;
+
+	suvd_flags = UVD_SUVD_CGC_GATE__SRE_MASK |
+				UVD_SUVD_CGC_GATE__SIT_MASK |
+				UVD_SUVD_CGC_GATE__SMP_MASK |
+				UVD_SUVD_CGC_GATE__SCM_MASK |
+				UVD_SUVD_CGC_GATE__SDB_MASK;
+
+	data |= cgc_flags;
+	data1 |= suvd_flags;
+
+	WREG32(mmUVD_CGC_GATE, data);
+	WREG32(mmUVD_SUVD_CGC_GATE, data1);
+}
+#endif
+
 static int uvd_v6_0_set_clockgating_state(void *handle,
 					  enum amd_clockgating_state state)
 {
 	struct amdgpu_device *adev = (struct amdgpu_device *)handle;
 	bool enable = (state == AMD_CG_STATE_GATE) ? true : false;
+	static int curstate = -1;
 
 	if (!(adev->cg_flags & AMD_CG_SUPPORT_UVD_MGCG))
 		return 0;
 
+	if (curstate == state)
+		return 0;
+
+	curstate = state;
 	if (enable) {
-		if (adev->flags & AMD_IS_APU)
-			cz_set_uvd_clock_gating_branches(adev, enable);
-		else
-			tonga_set_uvd_clock_gating_branches(adev, enable);
-		uvd_v6_0_set_uvd_dynamic_clock_mode(adev, true);
+		/* disable HW gating and enable Sw gating */
+		uvd_v6_0_set_sw_clock_gating(adev);
 	} else {
-		uint32_t data = RREG32(mmUVD_CGC_CTRL);
-		data &= ~UVD_CGC_CTRL__DYN_CLOCK_MODE_MASK;
-		WREG32(mmUVD_CGC_CTRL, data);
+		/* wait for STATUS to clear */
+		if (uvd_v6_0_wait_for_idle(handle))
+			return -EBUSY;
+
+		/* enable HW gates because UVD is idle */
+/*		uvd_v6_0_set_hw_clock_gating(adev); */
 	}
 
 	return 0;
-- 
2.5.5

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  parent reply	other threads:[~2016-05-02 20:01 UTC|newest]

Thread overview: 47+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2016-05-02 20:00 Misc amdgpu patches Alex Deucher
2016-05-02 20:00 ` [PATCH] drm/amdgpu/dce11: fix vertical bars appear on monitor Alex Deucher
2016-05-02 20:00 ` Alex Deucher [this message]
2016-05-02 20:00 ` [PATCH] drm/amd/amdgpu: Enable clockgating for UVD5 on Tonga Alex Deucher
2016-05-02 20:00 ` [PATCH] drm/amd/amdgpu: Enable clockgating in UVD6 for Stoney Alex Deucher
2016-05-02 20:00 ` [PATCH] drm/amd/powerplay: use min_clock_in_sr for deep sleep feature Alex Deucher
2016-05-02 20:00 ` [PATCH] drm/amdgpu: Set PFLIP_SUBMITTED for crtc after address update Alex Deucher
2016-05-02 20:00 ` [PATCH] drm/amdgpu: add new CG flag for ROM clockgating Alex Deucher
2016-05-02 20:00 ` [PATCH] drm/amdgpu/gfx: add proper CG flags for fiji Alex Deucher
2016-05-02 20:00 ` [PATCH] drm/amdgpu/sdma: " Alex Deucher
2016-05-02 20:00 ` [PATCH] drm/amdgpu/common: " Alex Deucher
2016-05-02 20:00 ` [PATCH] drm/amdgpu/gmc: " Alex Deucher
2016-05-02 20:00 ` [PATCH] drm/amdgpu/gfx8: rename send_serdes_cmd Alex Deucher
2016-05-02 20:00 ` [PATCH] drm/amdgpu/gfx: adjust gfx_v8_0_send_serdes_cmd for ST Alex Deucher
2016-05-02 20:00 ` [PATCH] drm/amdgpu: add a new set of rlc function pointers Alex Deucher
2016-05-02 20:00 ` [PATCH] drm/amdgpu/gfx: rework fiji cg functions so they can be shared Alex Deucher
2016-05-02 20:00 ` [PATCH] drm/amdgpu: enable gfx clockgating for CZ Alex Deucher
2016-05-02 20:00 ` [PATCH] drm/amdgpu: enable gfx clockgating for ST (v2) Alex Deucher
2016-05-02 20:00 ` [PATCH] drm/amdgpu/vi: rename fiji cg functions Alex Deucher
2016-05-02 20:00 ` [PATCH] drm/amdgpu: enable gmc clockgating for CZ Alex Deucher
2016-05-02 20:00 ` [PATCH] drm/amdgpu: enable gmc clockgating for ST Alex Deucher
2016-05-02 20:00 ` [PATCH] drm/amdgpu/sdma: rename fiji cg functions Alex Deucher
2016-05-02 20:00 ` [PATCH] drm/amdgpu: enable sdma clockgating on CZ Alex Deucher
2016-05-02 20:00 ` [PATCH] drm/amdgpu: enable sdma clockgating on ST Alex Deucher
2016-05-02 20:00 ` [PATCH] drm/amdgpu: add ELM/BAF DCE11 configs (v2) Alex Deucher
2016-05-02 20:00 ` [PATCH] drm/amdgpu: add ELM/BAF support to dce_v11_0_pick_pll (v2) Alex Deucher
2016-05-02 20:00 ` [PATCH] drm/amd/powerplay: enable some feature for baffin/ellesmere. (v2) Alex Deucher
2016-05-02 20:00 ` [PATCH] drm/amd/powerplay: add fan control mode interface for baffin Alex Deucher
2016-05-02 20:00 ` [PATCH] drm/amd/powerplay: parameter updates according to SMC Alex Deucher
2016-05-02 20:00 ` [PATCH] drm/amd/powerplay: fix issue that get wrong reference clock value Alex Deucher
2016-05-02 20:00 ` [PATCH] drm/amd/powerplay: Fix a bug for enabling ACDC gpio interrupt Alex Deucher
2016-05-02 20:00 ` [PATCH] drm/amd/powerplay: update vce power gate state for baffin Alex Deucher
2016-05-02 20:00 ` [PATCH] drm/amdgpu: fix memory leak in CGS (FW info) Alex Deucher
2016-05-02 20:00 ` [PATCH] drm/amd/powerplay: return 0 when interface not implement on some asic Alex Deucher
2016-05-02 20:00 ` [PATCH] drm/amd/powerplay: fix some initialize error on polaris10 Alex Deucher
2016-05-02 20:00 ` [PATCH] drm/amd/powerplay: fix bug dpm can't work when resume back on Polaris Alex Deucher
2016-05-02 20:00 ` [PATCH] drm/amd/powerplay: fix fan speed percent setting error on Polaris10 Alex Deucher
2016-05-02 20:00 ` [PATCH] drm/amd/powerplay: add dpm force multiple levels on cz/tonga/fiji/polaris (v2) Alex Deucher
2016-05-02 20:00 ` [PATCH] drm/amd/powerplay: revise caching the soft pptable and add it's size Alex Deucher
2016-05-02 20:00 ` [PATCH] drm/amd/powerplay: revise reading/writing pptable on Fiji Alex Deucher
2016-05-02 20:00 ` [PATCH] drm/amd/powerplay: revise reading/writing pptable on Tonga Alex Deucher
2016-05-02 20:00 ` [PATCH] drm/amd/powerplay: revise reading/writing pptable on Polaris10 Alex Deucher
2016-05-02 20:00 ` [PATCH] drm/amd/amdgpu: Drop print_status callbacks Alex Deucher
2016-05-02 20:00 ` [PATCH] drm/amd/amdgpu: Add debugfs entries for smc/didt/pcie Alex Deucher
2016-05-02 20:00 ` [PATCH] drm/powerplay: add missing clockgating callback for tonga Alex Deucher
2016-05-02 20:00 ` [PATCH] drm/amdgpu/fiji: set UVD CG state when enabling UVD DPM (v2) Alex Deucher
2016-05-02 20:00 ` [PATCH] drm/amdgpu/uvd6: add bypass support for fiji (v3) Alex Deucher

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