Attachment 108473 Details for Bug 85107 – dpm fix

[patch] dpm fix

0001-drm-radeon-dpm-fixes-for-asrock-systems.patch (text/plain), 1.79 KB, created by Alex Deucher on 2014-10-26 19:14:50 UTC

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Creator: Alex Deucher

Created: 2014-10-26 19:14:50 UTC

Size: 1.79 KB

patch

obsolete

>From 5223f4381201f5456c94962575c47e5f55882a3e Mon Sep 17 00:00:00 2001
>From: Alex Deucher <alexander.deucher@amd.com>
>Date: Sun, 26 Oct 2014 15:10:21 -0400
>Subject: [PATCH] drm/radeon: dpm fixes for asrock systems
>
>- bapm seems to cause CP stuck messages so disable it.
>- nb dpm seems to prevent GPU dpm from getting enabled, so
>disable it.
>
>bug:
>https://bugs.freedesktop.org/show_bug.cgi?id=85107
>
>Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
>Cc: stable@vger.kernel.org
>---
> drivers/gpu/drm/radeon/kv_dpm.c | 19 ++++++++++++++++---
> 1 file changed, 16 insertions(+), 3 deletions(-)
>
>diff --git a/drivers/gpu/drm/radeon/kv_dpm.c b/drivers/gpu/drm/radeon/kv_dpm.c
>index 7b129d2..ab242ae 100644
>--- a/drivers/gpu/drm/radeon/kv_dpm.c
>+++ b/drivers/gpu/drm/radeon/kv_dpm.c
>@@ -2711,7 +2711,11 @@ int kv_dpm_init(struct radeon_device *rdev)
> 
>         pi->sram_end = SMC_RAM_END;
> 
>-	pi->enable_nb_dpm = true;
>+	/* Enabling nb dpm on an asrock system prevents dpm from working */
>+	if (rdev->pdev->subsystem_vendor == 0x1849)
>+		pi->enable_nb_dpm = false;
>+	else
>+		pi->enable_nb_dpm = true;
> 
> 	pi->caps_power_containment = true;
> 	pi->caps_cac = true;
>@@ -2726,10 +2730,19 @@ int kv_dpm_init(struct radeon_device *rdev)
> 	pi->caps_sclk_ds = true;
> 	pi->enable_auto_thermal_throttling = true;
> 	pi->disable_nb_ps3_in_battery = false;
>-	if (radeon_bapm == 0)
>+	if (radeon_bapm == -1) {
>+		/* There are stability issues reported on with
>+		 * bapm enabled on an asrock system.
>+		 */
>+		if (rdev->pdev->subsystem_vendor == 0x1849)
>+			pi->bapm_enable = false;
>+		else
>+			pi->bapm_enable = true;
>+	} else if (radeon_bapm == 0) {
> 		pi->bapm_enable = false;
>-	else
>+	} else {
> 		pi->bapm_enable = true;
>+	}
> 	pi->voltage_drop_t = 0;
> 	pi->caps_sclk_throttle_low_notification = false;
> 	pi->caps_fps = false; /* true? */
>-- 
>1.8.3.1
>

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Attachments on bug 85107: 107947 | 107948 | 107954 | 107964 | 108260 | 108473

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