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07ad83db0f
The Congatec qmx6 is based on 3.0.35-4.0.0 BSP and has not been ported to the 3.0.35-4.1.0 yet; we workaround it fixing the revision and applying the need patches on top of the kernel for it to work with the 3.10.9-1.0.0 GPU. Change-Id: Ifa5baa4dd26edd5e68c9f3e2d5dec2b078e05a23 Signed-off-by: Otavio Salvador <otavio@ossystems.com.br>
63 lines
2.4 KiB
Diff
63 lines
2.4 KiB
Diff
From 2df4dba8faa9a781a5a1c6c09d646d2b692c9a0c Mon Sep 17 00:00:00 2001
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From: Loren Huang <b02279@freescale.com>
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Date: Tue, 4 Jun 2013 15:08:15 +0800
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Subject: [PATCH 2/6] ENGR00265465 gpu:Add global value for minimum 3D clock
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export
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Add global value gpu3DMinClock so that minimum 3D clock can be change by user.
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When gpu min clock is too low, it may cause IPU starvation issue in certain case.
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Use echo x > /sys/module/galcore/parameters/gpu3DMinClock to change it.
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Cherry-pick from 3.0.35 branch.
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Upstream-Status: Backport [3.5.7-1.0.0]
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Signed-off-by: Loren Huang <b02279@freescale.com>
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Acked-by: Lily Zhang
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---
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drivers/mxc/gpu-viv/arch/XAQ2/hal/kernel/gc_hal_kernel_hardware.c | 6 +++++-
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drivers/mxc/gpu-viv/hal/os/linux/kernel/gc_hal_kernel_driver.c | 3 +++
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2 files changed, 8 insertions(+), 1 deletion(-)
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diff --git a/drivers/mxc/gpu-viv/arch/XAQ2/hal/kernel/gc_hal_kernel_hardware.c b/drivers/mxc/gpu-viv/arch/XAQ2/hal/kernel/gc_hal_kernel_hardware.c
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index 3829999..ebd36fe 100644
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--- a/drivers/mxc/gpu-viv/arch/XAQ2/hal/kernel/gc_hal_kernel_hardware.c
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+++ b/drivers/mxc/gpu-viv/arch/XAQ2/hal/kernel/gc_hal_kernel_hardware.c
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@@ -36,6 +36,7 @@ typedef struct _gcsiDEBUG_REGISTERS
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}
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gcsiDEBUG_REGISTERS;
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+extern int gpu3DMinClock;
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/******************************************************************************\
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********************************* Support Code *********************************
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\******************************************************************************/
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@@ -4630,7 +4631,10 @@ gckHARDWARE_GetFscaleValue(
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)
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{
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*FscaleValue = Hardware->powerOnFscaleVal;
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- *MinFscaleValue = 1;
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+ if ((gpu3DMinClock > 0) && (gpu3DMinClock <= 64) && (Hardware->core == gcvCORE_MAJOR))
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+ *MinFscaleValue = gpu3DMinClock;
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+ else
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+ *MinFscaleValue = 1;
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*MaxFscaleValue = 64;
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return gcvSTATUS_OK;
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diff --git a/drivers/mxc/gpu-viv/hal/os/linux/kernel/gc_hal_kernel_driver.c b/drivers/mxc/gpu-viv/hal/os/linux/kernel/gc_hal_kernel_driver.c
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index 2ed3d0e..64cace1 100644
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--- a/drivers/mxc/gpu-viv/hal/os/linux/kernel/gc_hal_kernel_driver.c
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+++ b/drivers/mxc/gpu-viv/hal/os/linux/kernel/gc_hal_kernel_driver.c
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@@ -146,6 +146,9 @@ module_param(logFileSize,uint, 0644);
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static int showArgs = 0;
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module_param(showArgs, int, 0644);
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+int gpu3DMinClock = 0;
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+module_param(gpu3DMinClock, int, 0644);
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+
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#if ENABLE_GPU_CLOCK_BY_DRIVER
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unsigned long coreClock = 156000000;
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module_param(coreClock, ulong, 0644);
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--
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1.8.3.2
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