diff options
Diffstat (limited to 'arch/arm/mach-msm/include/mach/iommu.h')
| -rw-r--r-- | arch/arm/mach-msm/include/mach/iommu.h | 33 |
1 files changed, 25 insertions, 8 deletions
diff --git a/arch/arm/mach-msm/include/mach/iommu.h b/arch/arm/mach-msm/include/mach/iommu.h index 218ef5732a24..5c7c955e6d25 100644 --- a/arch/arm/mach-msm/include/mach/iommu.h +++ b/arch/arm/mach-msm/include/mach/iommu.h @@ -1,4 +1,4 @@ -/* Copyright (c) 2010, Code Aurora Forum. All rights reserved. +/* Copyright (c) 2010-2011, Code Aurora Forum. All rights reserved. * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License version 2 and @@ -19,6 +19,20 @@ #define MSM_IOMMU_H #include <linux/interrupt.h> +#include <linux/clk.h> + +/* Sharability attributes of MSM IOMMU mappings */ +#define MSM_IOMMU_ATTR_NON_SH 0x0 +#define MSM_IOMMU_ATTR_SH 0x4 + +/* Cacheability attributes of MSM IOMMU mappings */ +#define MSM_IOMMU_ATTR_NONCACHED 0x0 +#define MSM_IOMMU_ATTR_CACHED_WB_WA 0x1 +#define MSM_IOMMU_ATTR_CACHED_WB_NWA 0x2 +#define MSM_IOMMU_ATTR_CACHED_WT 0x3 + +/* Mask for the cache policy attribute */ +#define MSM_IOMMU_CP_MASK 0x03 /* Maximum number of Machine IDs that we are allowing to be mapped to the same * context bank. The number of MIDs mapped to the same CB does not affect @@ -26,19 +40,16 @@ * be present. These mappings are typically determined at design time and are * not expected to change at run time. */ -#define MAX_NUM_MIDS 16 +#define MAX_NUM_MIDS 32 /** * struct msm_iommu_dev - a single IOMMU hardware instance * name Human-readable name given to this IOMMU HW instance - * clk_rate Rate to set for this IOMMU's clock, if applicable to this - * particular IOMMU. 0 means don't set a rate. - * -1 means it is an AXI clock with no valid rate - * + * ncb Number of context banks present on this IOMMU HW instance */ struct msm_iommu_dev { const char *name; - int clk_rate; + int ncb; }; /** @@ -60,14 +71,20 @@ struct msm_iommu_ctx_dev { /** * struct msm_iommu_drvdata - A single IOMMU hardware instance * @base: IOMMU config port base address (VA) + * @ncb The number of contexts on this IOMMU * @irq: Interrupt number - * + * @clk: The bus clock for this IOMMU hardware instance + * @pclk: The clock for the IOMMU bus interconnect + * * A msm_iommu_drvdata holds the global driver data about a single piece * of an IOMMU hardware instance. */ struct msm_iommu_drvdata { void __iomem *base; int irq; + int ncb; + struct clk *clk; + struct clk *pclk; }; /** |