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iommu/io-pgtable-arm-v7s: Rename the quirk from MTK_4GB to MTK_EXT 

In previous mt2712/mt8173, MediaTek extend the v7s to support 4GB dram.
But in the latest mt8183, We extend it to support the PA up to 34bit.
Then the "MTK_4GB" name is not so fit, This patch only change the quirk
name to "MTK_EXT".

Signed-off-by: Yong Wu <yong.wu@mediatek.com>
Acked-by: Will Deacon <will@kernel.org>
Signed-off-by: Joerg Roedel <jroedel@suse.de>
This commit is contained in:
Yong Wu 2019-08-24 11:01:53 +08:00 committed by Joerg Roedel
parent 7f315c9da9
commit 73d50811bc
3 changed files with 6 additions and 6 deletions
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6
drivers/iommu/io-pgtable-arm-v7s.c
View File

@ -315,7 +315,7 @@ static arm_v7s_iopte arm_v7s_prot_to_pte(int prot, int lvl,
if (lvl == 1 && (cfg->quirks & IO_PGTABLE_QUIRK_ARM_NS))
pte |= ARM_V7S_ATTR_NS_SECTION;
if (cfg->quirks & IO_PGTABLE_QUIRK_ARM_MTK_4GB)
if (cfg->quirks & IO_PGTABLE_QUIRK_ARM_MTK_EXT)
pte |= ARM_V7S_ATTR_MTK_4GB;
return pte;
@ -737,12 +737,12 @@ static struct io_pgtable *arm_v7s_alloc_pgtable(struct io_pgtable_cfg *cfg,
if (cfg->quirks & ~(IO_PGTABLE_QUIRK_ARM_NS |
IO_PGTABLE_QUIRK_NO_PERMS |
IO_PGTABLE_QUIRK_TLBI_ON_MAP |
IO_PGTABLE_QUIRK_ARM_MTK_4GB |
IO_PGTABLE_QUIRK_ARM_MTK_EXT |
IO_PGTABLE_QUIRK_NON_STRICT))
return NULL;
/* If ARM_MTK_4GB is enabled, the NO_PERMS is also expected. */
if (cfg->quirks & IO_PGTABLE_QUIRK_ARM_MTK_4GB &&
if (cfg->quirks & IO_PGTABLE_QUIRK_ARM_MTK_EXT &&
!(cfg->quirks & IO_PGTABLE_QUIRK_NO_PERMS))
return NULL;

2
drivers/iommu/mtk_iommu.c
View File

@ -296,7 +296,7 @@ static int mtk_iommu_domain_finalise(struct mtk_iommu_domain *dom)
};
if (data->enable_4GB)
dom->cfg.quirks |= IO_PGTABLE_QUIRK_ARM_MTK_4GB;
dom->cfg.quirks |= IO_PGTABLE_QUIRK_ARM_MTK_EXT;
dom->iop = alloc_io_pgtable_ops(ARM_V7S, &dom->cfg, data);
if (!dom->iop) {

4
include/linux/io-pgtable.h
View File

@ -65,7 +65,7 @@ struct io_pgtable_cfg {
* (unmapped) entries but the hardware might do so anyway, perform
* TLB maintenance when mapping as well as when unmapping.
*
* IO_PGTABLE_QUIRK_ARM_MTK_4GB: (ARM v7s format) Set bit 9 in all
* IO_PGTABLE_QUIRK_ARM_MTK_EXT: (ARM v7s format) Set bit 9 in all
* PTEs, for Mediatek IOMMUs which treat it as a 33rd address bit
* when the SoC is in "4GB mode" and they can only access the high
* remap of DRAM (0x1_00000000 to 0x1_ffffffff).
@ -77,7 +77,7 @@ struct io_pgtable_cfg {
#define IO_PGTABLE_QUIRK_ARM_NS BIT(0)
#define IO_PGTABLE_QUIRK_NO_PERMS BIT(1)
#define IO_PGTABLE_QUIRK_TLBI_ON_MAP BIT(2)
#define IO_PGTABLE_QUIRK_ARM_MTK_4GB BIT(3)
#define IO_PGTABLE_QUIRK_ARM_MTK_EXT BIT(3)
#define IO_PGTABLE_QUIRK_NON_STRICT BIT(4)
unsigned long quirks;
unsigned long pgsize_bitmap;