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iommu/fsl_pamu: remove the rpn and snoop_id arguments to pamu_config_ppaac

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These are always wired to fixed values, so don't bother passing them as
arguments.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Link: https://lore.kernel.org/r/20210401155256.298656-13-hch@lst.de
Signed-off-by: Joerg Roedel <jroedel@suse.de>
This commit is contained in:
Christoph Hellwig 2021-04-01 17:52:48 +02:00 committed by Joerg Roedel
parent fd78696ece
commit 151f9414b8
3 changed files with 7 additions and 16 deletions
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14
drivers/iommu/fsl_pamu.c
View file

@ -181,18 +181,14 @@ int pamu_update_paace_stash(int liodn, u32 value)
* @win_addr: starting address of DSA window
* @win-size: size of DSA window
* @omi: Operation mapping index -- if ~omi == 0 then omi not defined
* @rpn: real (true physical) page number
* @stashid: cache stash id for associated cpu -- if ~stashid == 0 then
* stashid not defined
* @snoopid: snoop id for hardware coherency -- if ~snoopid == 0 then
* snoopid not defined
* @prot: window permissions
*
* Returns 0 upon success else error code < 0 returned
*/
int pamu_config_ppaace(int liodn, phys_addr_t win_addr, phys_addr_t win_size,
u32 omi, unsigned long rpn, u32 snoopid, u32 stashid,
int prot)
u32 omi, u32 stashid, int prot)
{
struct paace *ppaace;
@ -234,13 +230,9 @@ int pamu_config_ppaace(int liodn, phys_addr_t win_addr, phys_addr_t win_size,
if (~stashid != 0)
set_bf(ppaace->impl_attr, PAACE_IA_CID, stashid);
/* configure snoop id */
if (~snoopid != 0)
ppaace->domain_attr.to_host.snpid = snoopid;
set_bf(ppaace->impl_attr, PAACE_IA_ATM, PAACE_ATM_WINDOW_XLATE);
ppaace->twbah = rpn >> 20;
set_bf(ppaace->win_bitfields, PAACE_WIN_TWBAL, rpn);
ppaace->twbah = 0;
set_bf(ppaace->win_bitfields, PAACE_WIN_TWBAL, 0);
set_bf(ppaace->addr_bitfields, PAACE_AF_AP, prot);
set_bf(ppaace->impl_attr, PAACE_IA_WCE, 0);
set_bf(ppaace->addr_bitfields, PPAACE_AF_MW, 0);

3
drivers/iommu/fsl_pamu.h
View file

@ -384,8 +384,7 @@ int pamu_domain_init(void);
int pamu_enable_liodn(int liodn);
int pamu_disable_liodn(int liodn);
int pamu_config_ppaace(int liodn, phys_addr_t win_addr, phys_addr_t win_size,
u32 omi, unsigned long rpn, u32 snoopid, uint32_t stashid,
int prot);
u32 omi, uint32_t stashid, int prot);
u32 get_stash_id(u32 stash_dest_hint, u32 vcpu);
void get_ome_index(u32 *omi_index, struct device *dev);

6
drivers/iommu/fsl_pamu_domain.c
View file

@ -96,13 +96,13 @@ static int pamu_set_liodn(struct fsl_dma_domain *dma_domain, struct device *dev,
if (ret)
goto out_unlock;
ret = pamu_config_ppaace(liodn, geom->aperture_start,
geom->aperture_end + 1, omi_index, 0,
~(u32)0, dma_domain->stash_id, 0);
geom->aperture_end + 1, omi_index,
dma_domain->stash_id, 0);
if (ret)
goto out_unlock;
ret = pamu_config_ppaace(liodn, geom->aperture_start,
geom->aperture_end + 1, ~(u32)0,
0, ~(u32)0, dma_domain->stash_id,
dma_domain->stash_id,
PAACE_AP_PERMS_QUERY | PAACE_AP_PERMS_UPDATE);
out_unlock:
spin_unlock_irqrestore(&iommu_lock, flags);