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Code Issues 2 Packages Projects Releases Wiki Activity

amd-gpu: remove unneeded barriers on hardware access

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matches Freescale 2.6.38 kernel (ENGR00171209)
This commit is contained in:
Matt Sealey
2012-11-19 21:31:06 +00:00
parent 42f79c36bf
commit c0489d5cdc
1 changed files with 3 additions and 23 deletions
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26
drivers/mxc/amd-gpu/include/gsl_hwaccess.h
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@@ -41,8 +41,6 @@ kgsl_hwaccess_memread(void *dst, unsigned int gpubase, unsigned int gpuoffset, u
if (gsl_driver.enable_mmu && (gpubase >= GSL_LINUX_MAP_RANGE_START) && (gpubase < GSL_LINUX_MAP_RANGE_END)) {
gsl_linux_map_read(dst, gpubase+gpuoffset, sizebytes, touserspace);
} else {
mb();
dsb();
if (touserspace)
{
if (copy_to_user(dst, (void *)(gpubase + gpuoffset), sizebytes))
@@ -54,8 +52,6 @@ kgsl_hwaccess_memread(void *dst, unsigned int gpubase, unsigned int gpuoffset, u
{
memcpy(dst, (void *) (gpubase + gpuoffset), sizebytes);
}
mb();
dsb();
}
}
@@ -67,8 +63,6 @@ kgsl_hwaccess_memwrite(unsigned int gpubase, unsigned int gpuoffset, void *src,
if (gsl_driver.enable_mmu && (gpubase >= GSL_LINUX_MAP_RANGE_START) && (gpubase < GSL_LINUX_MAP_RANGE_END)) {
gsl_linux_map_write(src, gpubase+gpuoffset, sizebytes, fromuserspace);
} else {
mb();
dsb();
if (fromuserspace)
{
if (copy_from_user((void *)(gpubase + gpuoffset), src, sizebytes))
@@ -80,8 +74,6 @@ kgsl_hwaccess_memwrite(unsigned int gpubase, unsigned int gpuoffset, void *src,
{
memcpy((void *)(gpubase + gpuoffset), src, sizebytes);
}
mb();
dsb();
}
}
@@ -93,11 +85,7 @@ kgsl_hwaccess_memset(unsigned int gpubase, unsigned int gpuoffset, unsigned int
if (gsl_driver.enable_mmu && (gpubase >= GSL_LINUX_MAP_RANGE_START) && (gpubase < GSL_LINUX_MAP_RANGE_END)) {
gsl_linux_map_set(gpuoffset+gpubase, value, sizebytes);
} else {
mb();
dsb();
memset((void *)(gpubase + gpuoffset), value, sizebytes);
mb();
dsb();
}
}
@@ -112,12 +100,8 @@ kgsl_hwaccess_regread(gsl_deviceid_t device_id, unsigned int gpubase, unsigned i
(void) device_id;
reg = (unsigned int *)(gpubase + (offsetwords << 2));
mb();
dsb();
*data = __raw_readl(reg);
mb();
dsb();
*data = readl(reg);
}
//----------------------------------------------------------------------------
@@ -131,10 +115,6 @@ kgsl_hwaccess_regwrite(gsl_deviceid_t device_id, unsigned int gpubase, unsigned
(void) device_id;
reg = (unsigned int *)(gpubase + (offsetwords << 2));
mb();
dsb();
__raw_writel(data, reg);
mb();
dsb();
writel(data, reg);
}
#endif // __GSL_HWACCESS_WINCE_MX51_H