From: Kleber Sacilotto de Souza <klebers@linux.vnet.ibm.com>
To: linuxppc-dev@lists.ozlabs.org, dri-devel@lists.freedesktop.org,
Benjamin Herrenschmidt <benh@kernel.crashing.org>,
Bjorn Helgaas <bhelgaas@google.com>,
David Airlie <airlied@linux.ie>,
Michael Ellerman <michael@ellerman.id.au>
Cc: Brian King <brking@linux.vnet.ibm.com>,
Alex Deucher <alexander.deucher@amd.com>,
Jerome Glisse <jglisse@redhat.com>,
Thadeu Lima de Souza Cascardo <cascardo@linux.vnet.ibm.com>,
Kleber Sacilotto de Souza <klebers@linux.vnet.ibm.com>
Subject: [PATCHv5 2/2] radeon: use max_bus_speed to activate gen2 speeds
Date: Fri, 3 May 2013 19:43:13 -0300 [thread overview]
Message-ID: <1367620993-27037-3-git-send-email-klebers@linux.vnet.ibm.com> (raw)
In-Reply-To: <1367620993-27037-1-git-send-email-klebers@linux.vnet.ibm.com>
radeon currently uses a drm function to get the speed capabilities for
the bus, drm_pcie_get_speed_cap_mask. However, this is a non-standard
method of performing this detection and this patch changes it to use
the max_bus_speed attribute.
From: Lucas Kannebley Tavares <lucaskt@linux.vnet.ibm.com>
Signed-off-by: Kleber Sacilotto de Souza <klebers@linux.vnet.ibm.com>
---
drivers/gpu/drm/radeon/evergreen.c | 10 +++-------
drivers/gpu/drm/radeon/r600.c | 9 ++-------
drivers/gpu/drm/radeon/rv770.c | 9 ++-------
3 files changed, 7 insertions(+), 21 deletions(-)
diff --git a/drivers/gpu/drm/radeon/evergreen.c b/drivers/gpu/drm/radeon/evergreen.c
index 105bafb..3966696 100644
--- a/drivers/gpu/drm/radeon/evergreen.c
+++ b/drivers/gpu/drm/radeon/evergreen.c
@@ -4992,8 +4992,7 @@ void evergreen_fini(struct radeon_device *rdev)
void evergreen_pcie_gen2_enable(struct radeon_device *rdev)
{
- u32 link_width_cntl, speed_cntl, mask;
- int ret;
+ u32 link_width_cntl, speed_cntl;
if (radeon_pcie_gen2 == 0)
return;
@@ -5008,11 +5007,8 @@ void evergreen_pcie_gen2_enable(struct radeon_device *rdev)
if (ASIC_IS_X2(rdev))
return;
- ret = drm_pcie_get_speed_cap_mask(rdev->ddev, &mask);
- if (ret != 0)
- return;
-
- if (!(mask & DRM_PCIE_SPEED_50))
+ if ((rdev->pdev->bus->max_bus_speed != PCIE_SPEED_5_0GT) &&
+ (rdev->pdev->bus->max_bus_speed != PCIE_SPEED_8_0GT))
return;
speed_cntl = RREG32_PCIE_PORT(PCIE_LC_SPEED_CNTL);
diff --git a/drivers/gpu/drm/radeon/r600.c b/drivers/gpu/drm/radeon/r600.c
index 1a08008..b45e648 100644
--- a/drivers/gpu/drm/radeon/r600.c
+++ b/drivers/gpu/drm/radeon/r600.c
@@ -4631,8 +4631,6 @@ static void r600_pcie_gen2_enable(struct radeon_device *rdev)
{
u32 link_width_cntl, lanes, speed_cntl, training_cntl, tmp;
u16 link_cntl2;
- u32 mask;
- int ret;
if (radeon_pcie_gen2 == 0)
return;
@@ -4651,11 +4649,8 @@ static void r600_pcie_gen2_enable(struct radeon_device *rdev)
if (rdev->family <= CHIP_R600)
return;
- ret = drm_pcie_get_speed_cap_mask(rdev->ddev, &mask);
- if (ret != 0)
- return;
-
- if (!(mask & DRM_PCIE_SPEED_50))
+ if ((rdev->pdev->bus->max_bus_speed != PCIE_SPEED_5_0GT) &&
+ (rdev->pdev->bus->max_bus_speed != PCIE_SPEED_8_0GT))
return;
speed_cntl = RREG32_PCIE_PORT(PCIE_LC_SPEED_CNTL);
diff --git a/drivers/gpu/drm/radeon/rv770.c b/drivers/gpu/drm/radeon/rv770.c
index 83f612a..a6af4aa 100644
--- a/drivers/gpu/drm/radeon/rv770.c
+++ b/drivers/gpu/drm/radeon/rv770.c
@@ -2113,8 +2113,6 @@ static void rv770_pcie_gen2_enable(struct radeon_device *rdev)
{
u32 link_width_cntl, lanes, speed_cntl, tmp;
u16 link_cntl2;
- u32 mask;
- int ret;
if (radeon_pcie_gen2 == 0)
return;
@@ -2129,11 +2127,8 @@ static void rv770_pcie_gen2_enable(struct radeon_device *rdev)
if (ASIC_IS_X2(rdev))
return;
- ret = drm_pcie_get_speed_cap_mask(rdev->ddev, &mask);
- if (ret != 0)
- return;
-
- if (!(mask & DRM_PCIE_SPEED_50))
+ if ((rdev->pdev->bus->max_bus_speed != PCIE_SPEED_5_0GT) &&
+ (rdev->pdev->bus->max_bus_speed != PCIE_SPEED_8_0GT))
return;
DRM_INFO("enabling PCIE gen 2 link speeds, disable with radeon.pcie_gen2=0\n");
--
1.7.1
next prev parent reply other threads:[~2013-05-03 22:44 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-05-03 22:43 [PATCHv5 0/2] Speed Cap fixes for ppc64 Kleber Sacilotto de Souza
2013-05-03 22:43 ` [PATCHv5 1/2] ppc64: perform proper max_bus_speed detection Kleber Sacilotto de Souza
2013-05-03 22:43 ` Kleber Sacilotto de Souza [this message]
2013-05-03 23:01 ` [PATCHv5 0/2] Speed Cap fixes for ppc64 Benjamin Herrenschmidt
2013-05-06 14:32 ` Alex Deucher
2013-05-06 14:33 ` Jerome Glisse
2013-05-15 12:35 ` Kleber Sacilotto de Souza
2013-05-15 12:58 ` Alex Deucher
2013-05-15 13:12 ` Kleber Sacilotto de Souza
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