We can just check for !CONFIG_DMA_NONCOHERENT instead and simplify things
a lot.
Signed-off-by: Christoph Hellwig <hch@xxxxxx>
Reviewed-by: Paul Burton <paul.burton@xxxxxxxx>
---
arch/mips/Kconfig | 16 ----------------
arch/mips/include/asm/dma-coherence.h | 6 +++---
arch/mips/include/asm/mach-generic/kmalloc.h | 3 +--
arch/mips/mti-malta/malta-setup.c | 4 ++--
arch/mips/sibyte/Kconfig | 1 -
5 files changed, 6 insertions(+), 24 deletions(-)
diff --git a/arch/mips/Kconfig b/arch/mips/Kconfig
index 3f9deec70b92..89be9f97da4e 100644
--- a/arch/mips/Kconfig
+++ b/arch/mips/Kconfig
@@ -665,7 +665,6 @@ config SGI_IP27
select FW_ARC64
select BOOT_ELF64
select DEFAULT_SGI_PARTITION
- select DMA_COHERENT
select SYS_HAS_EARLY_PRINTK
select HW_HAS_PCI
select NR_CPUS_DEFAULT_64
@@ -742,7 +741,6 @@ config SGI_IP32
config SIBYTE_CRHINE
bool "Sibyte BCM91120C-CRhine"
select BOOT_ELF32
- select DMA_COHERENT
select SIBYTE_BCM1120
select SWAP_IO_SPACE
select SYS_HAS_CPU_SB1
@@ -752,7 +750,6 @@ config SIBYTE_CRHINE
config SIBYTE_CARMEL
bool "Sibyte BCM91120x-Carmel"
select BOOT_ELF32
- select DMA_COHERENT
select SIBYTE_BCM1120
select SWAP_IO_SPACE
select SYS_HAS_CPU_SB1
@@ -762,7 +759,6 @@ config SIBYTE_CARMEL
config SIBYTE_CRHONE
bool "Sibyte BCM91125C-CRhone"
select BOOT_ELF32
- select DMA_COHERENT
select SIBYTE_BCM1125
select SWAP_IO_SPACE
select SYS_HAS_CPU_SB1
@@ -773,7 +769,6 @@ config SIBYTE_CRHONE
config SIBYTE_RHONE
bool "Sibyte BCM91125E-Rhone"
select BOOT_ELF32
- select DMA_COHERENT
select SIBYTE_BCM1125H
select SWAP_IO_SPACE
select SYS_HAS_CPU_SB1
@@ -783,7 +778,6 @@ config SIBYTE_RHONE
config SIBYTE_SWARM
bool "Sibyte BCM91250A-SWARM"
select BOOT_ELF32
- select DMA_COHERENT
select HAVE_PATA_PLATFORM
select SIBYTE_SB1250
select SWAP_IO_SPACE
@@ -796,7 +790,6 @@ config SIBYTE_SWARM
config SIBYTE_LITTLESUR
bool "Sibyte BCM91250C2-LittleSur"
select BOOT_ELF32
- select DMA_COHERENT
select HAVE_PATA_PLATFORM
select SIBYTE_SB1250
select SWAP_IO_SPACE
@@ -808,7 +801,6 @@ config SIBYTE_LITTLESUR
config SIBYTE_SENTOSA
bool "Sibyte BCM91250E-Sentosa"
select BOOT_ELF32
- select DMA_COHERENT
select SIBYTE_SB1250
select SWAP_IO_SPACE
select SYS_HAS_CPU_SB1
@@ -818,7 +810,6 @@ config SIBYTE_SENTOSA
config SIBYTE_BIGSUR
bool "Sibyte BCM91480B-BigSur"
select BOOT_ELF32
- select DMA_COHERENT
select NR_CPUS_DEFAULT_4
select SIBYTE_BCM1x80
select SWAP_IO_SPACE
@@ -895,7 +886,6 @@ config CAVIUM_OCTEON_SOC
select CEVT_R4K
select ARCH_HAS_PHYS_TO_DMA
select PHYS_ADDR_T_64BIT
- select DMA_COHERENT
select SYS_SUPPORTS_64BIT_KERNEL
select SYS_SUPPORTS_BIG_ENDIAN
select EDAC_SUPPORT
@@ -944,7 +934,6 @@ config NLM_XLR_BOARD
select PHYS_ADDR_T_64BIT
select SYS_SUPPORTS_BIG_ENDIAN
select SYS_SUPPORTS_HIGHMEM
- select DMA_COHERENT
select NR_CPUS_DEFAULT_32
select CEVT_R4K
select CSRC_R4K
@@ -972,7 +961,6 @@ config NLM_XLP_BOARD
select SYS_SUPPORTS_BIG_ENDIAN
select SYS_SUPPORTS_LITTLE_ENDIAN
select SYS_SUPPORTS_HIGHMEM
- select DMA_COHERENT
select NR_CPUS_DEFAULT_32
select CEVT_R4K
select CSRC_R4K
@@ -991,7 +979,6 @@ config MIPS_PARAVIRT
bool "Para-Virtualized guest system"
select CEVT_R4K
select CSRC_R4K
- select DMA_COHERENT
select SYS_SUPPORTS_64BIT_KERNEL
select SYS_SUPPORTS_32BIT_KERNEL
select SYS_SUPPORTS_BIG_ENDIAN
@@ -1117,9 +1104,6 @@ config DMA_PERDEV_COHERENT
bool
select DMA_MAYBE_COHERENT
-config DMA_COHERENT
- bool
-
config DMA_NONCOHERENT
bool
select NEED_DMA_MAP_STATE
diff --git a/arch/mips/include/asm/dma-coherence.h b/arch/mips/include/asm/dma-coherence.h
index 72d0eab02afc..8eda48748ed5 100644
--- a/arch/mips/include/asm/dma-coherence.h
+++ b/arch/mips/include/asm/dma-coherence.h
@@ -21,10 +21,10 @@ enum coherent_io_user_state {
extern enum coherent_io_user_state coherentio;
extern int hw_coherentio;
#else
-#ifdef CONFIG_DMA_COHERENT
-#define coherentio IO_COHERENCE_ENABLED
-#else
+#ifdef CONFIG_DMA_NONCOHERENT
#define coherentio IO_COHERENCE_DISABLED
+#else
+#define coherentio IO_COHERENCE_ENABLED
#endif
#define hw_coherentio 0
#endif /* CONFIG_DMA_MAYBE_COHERENT */
diff --git a/arch/mips/include/asm/mach-generic/kmalloc.h b/arch/mips/include/asm/mach-generic/kmalloc.h
index 74207c7bd00d..649a98338886 100644
--- a/arch/mips/include/asm/mach-generic/kmalloc.h
+++ b/arch/mips/include/asm/mach-generic/kmalloc.h
@@ -2,8 +2,7 @@
#ifndef __ASM_MACH_GENERIC_KMALLOC_H
#define __ASM_MACH_GENERIC_KMALLOC_H
-
-#ifndef CONFIG_DMA_COHERENT
+#ifdef CONFIG_DMA_NONCOHERENT
/*
* Total overkill for most systems but need as a safe default.
* Set this one if any device in the system might do non-coherent DMA.
diff --git a/arch/mips/mti-malta/malta-setup.c b/arch/mips/mti-malta/malta-setup.c
index 7b63914d2e58..4d5cdfeee3db 100644
--- a/arch/mips/mti-malta/malta-setup.c
+++ b/arch/mips/mti-malta/malta-setup.c
@@ -227,7 +227,7 @@ static void __init bonito_quirks_setup(void)
} else
BONITO_BONGENCFG &= ~BONITO_BONGENCFG_DEBUGMODE;
-#ifdef CONFIG_DMA_COHERENT
+#ifndef CONFIG_DMA_NONCOHERENT
if (BONITO_PCICACHECTRL & BONITO_PCICACHECTRL_CPUCOH_PRES) {
BONITO_PCICACHECTRL |= BONITO_PCICACHECTRL_CPUCOH_EN;
pr_info("Enabled Bonito CPU coherency\n");
@@ -279,7 +279,7 @@ void __init plat_mem_setup(void)
*/
enable_dma(4);
-#ifdef CONFIG_DMA_COHERENT
+#ifndef CONFIG_DMA_NONCOHERENT
if (mips_revision_sconid != MIPS_REVISION_SCON_BONITO)
panic("Hardware DMA cache coherency not supported");
#endif
diff --git a/arch/mips/sibyte/Kconfig b/arch/mips/sibyte/Kconfig
index f4dbce25bc6a..7ec278d72096 100644
--- a/arch/mips/sibyte/Kconfig
+++ b/arch/mips/sibyte/Kconfig
@@ -70,7 +70,6 @@ config SIBYTE_BCM1x55
config SIBYTE_SB1xxx_SOC
bool
- select DMA_COHERENT
select IRQ_MIPS_CPU
select SWAP_IO_SPACE
select SYS_SUPPORTS_32BIT_KERNEL
--
2.17.1
