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OpenCloudOS-Kernel
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staging: ti dspbridge: deh: free dummy page immediately 

There's no need to keep it around. DSP should stop trying to access
system memory.

Signed-off-by: Felipe Contreras <felipe.contreras@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This commit is contained in:
Felipe Contreras 2010-07-04 16:34:29 +03:00 committed by Greg Kroah-Hartman
parent 599ede1cf3
commit 0d8631d290
1 changed files with 4 additions and 4 deletions
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8
drivers/staging/tidspbridge/core/ue_deh.c
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@ -52,8 +52,6 @@
#include <dspbridge/io_sm.h>
static void *dummy_va_addr;
int bridge_deh_create(struct deh_mgr **ret_deh_mgr,
struct dev_object *hdev_obj)
{
@ -154,6 +152,7 @@ void bridge_deh_notify(struct deh_mgr *deh_mgr, u32 ulEventMask, u32 dwErrInfo)
.element_size = HW_ELEM_SIZE16BIT,
.mixed_size = HW_MMU_CPUES,
};
void *dummy_va_addr;
if (!deh_mgr)
return;
@ -214,6 +213,9 @@ void bridge_deh_notify(struct deh_mgr *deh_mgr, u32 ulEventMask, u32 dwErrInfo)
HW_MMU_TRANSLATION_FAULT);
dump_dsp_stack(dev_context);
dsp_clk_disable(DSP_CLK_GPT8);
hw_mmu_disable(resources->dw_dmmu_base);
free_page((unsigned long)dummy_va_addr);
break;
#ifdef CONFIG_BRIDGE_NTFY_PWRERR
case DSP_PWRERROR:
@ -276,6 +278,4 @@ int bridge_deh_get_info(struct deh_mgr *deh_mgr,
void bridge_deh_release_dummy_mem(void)
{
free_page((unsigned long)dummy_va_addr);
dummy_va_addr = NULL;
}