AcoSail/kernel_optimize_test
8
0
Fork 0
forked from luck/tmp_suning_uos_patched
Code Pull Requests Activity

mei: me: add a wrapper to set host generated data interrupt

Browse Source 
Consolidate setting H_IG, an interrupt from host towards hw,
into a wrapper to eliminate code duplication.

Signed-off-by: Alexander Usyskin <alexander.usyskin@intel.com>
Signed-off-by: Tomas Winkler <tomas.winkler@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Alexander Usyskin 2017-02-02 11:26:53 +02:00 committed by Greg Kroah-Hartman
parent e1ef962bf1
commit 9c7daa61d9
1 changed files with 15 additions and 6 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

21
drivers/misc/mei/hw-me.c
View File

@ -139,6 +139,19 @@ static inline void mei_hcsr_set(struct mei_device *dev, u32 reg)
mei_hcsr_write(dev, reg);
}
/**
* mei_hcsr_set_hig - set host interrupt (set H_IG)
*
* @dev: the device structure
*/
static inline void mei_hcsr_set_hig(struct mei_device *dev)
{
u32 hcsr;
hcsr = mei_hcsr_read(dev) | H_IG;
mei_hcsr_set(dev, hcsr);
}
/**
* mei_me_d0i3c_read - Reads 32bit data from the D0I3C register
*
@ -505,7 +518,6 @@ static int mei_me_hbuf_write(struct mei_device *dev,
unsigned long rem;
unsigned long length = header->length;
u32 *reg_buf = (u32 *)buf;
u32 hcsr;
u32 dw_cnt;
int i;
int empty_slots;
@ -532,8 +544,7 @@ static int mei_me_hbuf_write(struct mei_device *dev,
mei_me_hcbww_write(dev, reg);
}
hcsr = mei_hcsr_read(dev) | H_IG;
mei_hcsr_set(dev, hcsr);
mei_hcsr_set_hig(dev);
if (!mei_me_hw_is_ready(dev))
return -EIO;
@ -580,7 +591,6 @@ static int mei_me_read_slots(struct mei_device *dev, unsigned char *buffer,
unsigned long buffer_length)
{
u32 *reg_buf = (u32 *)buffer;
u32 hcsr;
for (; buffer_length >= sizeof(u32); buffer_length -= sizeof(u32))
*reg_buf++ = mei_me_mecbrw_read(dev);
@ -591,8 +601,7 @@ static int mei_me_read_slots(struct mei_device *dev, unsigned char *buffer,
memcpy(reg_buf, &reg, buffer_length);
}
hcsr = mei_hcsr_read(dev) | H_IG;
mei_hcsr_set(dev, hcsr);
mei_hcsr_set_hig(dev);
return 0;
}