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-rw-r--r--arch/arc/Kbuild1
-rw-r--r--arch/arc/boot/dts/hsdk.dts45
-rw-r--r--arch/arc/configs/hsdk_defconfig3
-rw-r--r--arch/arc/include/asm/cmpxchg.h14
-rw-r--r--arch/arc/include/uapi/asm/Kbuild1
-rw-r--r--arch/arc/mm/fault.c9
-rw-r--r--arch/arc/mm/tlb.c13
-rw-r--r--arch/arc/plat-axs10x/axs10x.c11
8 files changed, 67 insertions, 30 deletions
diff --git a/arch/arc/Kbuild b/arch/arc/Kbuild
index 082d329d3245..699d8cae9b1f 100644
--- a/arch/arc/Kbuild
+++ b/arch/arc/Kbuild
@@ -1,2 +1,3 @@
+# SPDX-License-Identifier: GPL-2.0
obj-y += kernel/
obj-y += mm/
diff --git a/arch/arc/boot/dts/hsdk.dts b/arch/arc/boot/dts/hsdk.dts
index 7425bb0f2d1b..acfbed41b020 100644
--- a/arch/arc/boot/dts/hsdk.dts
+++ b/arch/arc/boot/dts/hsdk.dts
@@ -11,7 +11,6 @@
*/
/dts-v1/;
-#include <dt-bindings/net/ti-dp83867.h>
#include <dt-bindings/reset/snps,hsdk-reset.h>
/ {
@@ -167,6 +166,24 @@
#clock-cells = <0>;
};
+ gpu_core_clk: gpu-core-clk {
+ compatible = "fixed-clock";
+ clock-frequency = <400000000>;
+ #clock-cells = <0>;
+ };
+
+ gpu_dma_clk: gpu-dma-clk {
+ compatible = "fixed-clock";
+ clock-frequency = <400000000>;
+ #clock-cells = <0>;
+ };
+
+ gpu_cfg_clk: gpu-cfg-clk {
+ compatible = "fixed-clock";
+ clock-frequency = <200000000>;
+ #clock-cells = <0>;
+ };
+
dmac_core_clk: dmac-core-clk {
compatible = "fixed-clock";
clock-frequency = <400000000>;
@@ -187,6 +204,7 @@
interrupt-names = "macirq";
phy-mode = "rgmii";
snps,pbl = <32>;
+ snps,multicast-filter-bins = <256>;
clocks = <&gmacclk>;
clock-names = "stmmaceth";
phy-handle = <&phy0>;
@@ -195,15 +213,15 @@
mac-address = [00 00 00 00 00 00]; /* Filled in by U-Boot */
dma-coherent;
+ tx-fifo-depth = <4096>;
+ rx-fifo-depth = <4096>;
+
mdio {
#address-cells = <1>;
#size-cells = <0>;
compatible = "snps,dwmac-mdio";
phy0: ethernet-phy@0 {
reg = <0>;
- ti,rx-internal-delay = <DP83867_RGMIIDCTL_2_00_NS>;
- ti,tx-internal-delay = <DP83867_RGMIIDCTL_2_00_NS>;
- ti,fifo-depth = <DP83867_PHYCR_FIFO_DEPTH_4_B_NIB>;
};
};
};
@@ -237,6 +255,14 @@
dma-coherent;
};
+ creg_gpio: gpio@14b0 {
+ compatible = "snps,creg-gpio-hsdk";
+ reg = <0x14b0 0x4>;
+ gpio-controller;
+ #gpio-cells = <2>;
+ ngpios = <2>;
+ };
+
gpio: gpio@3000 {
compatible = "snps,dw-apb-gpio";
reg = <0x3000 0x20>;
@@ -252,6 +278,17 @@
};
};
+ gpu_3d: gpu@90000 {
+ compatible = "vivante,gc";
+ reg = <0x90000 0x4000>;
+ clocks = <&gpu_dma_clk>,
+ <&gpu_cfg_clk>,
+ <&gpu_core_clk>,
+ <&gpu_core_clk>;
+ clock-names = "bus", "reg", "core", "shader";
+ interrupts = <28>;
+ };
+
dmac: dmac@80000 {
compatible = "snps,axi-dma-1.01a";
reg = <0x80000 0x400>;
diff --git a/arch/arc/configs/hsdk_defconfig b/arch/arc/configs/hsdk_defconfig
index 0e5fd29ed238..c8fb5d60c53f 100644
--- a/arch/arc/configs/hsdk_defconfig
+++ b/arch/arc/configs/hsdk_defconfig
@@ -49,10 +49,12 @@ CONFIG_SERIAL_OF_PLATFORM=y
CONFIG_GPIOLIB=y
CONFIG_GPIO_SYSFS=y
CONFIG_GPIO_DWAPB=y
+CONFIG_GPIO_SNPS_CREG=y
# CONFIG_HWMON is not set
CONFIG_DRM=y
# CONFIG_DRM_FBDEV_EMULATION is not set
CONFIG_DRM_UDL=y
+CONFIG_DRM_ETNAVIV=y
CONFIG_FB=y
CONFIG_FRAMEBUFFER_CONSOLE=y
CONFIG_USB_EHCI_HCD=y
@@ -64,7 +66,6 @@ CONFIG_MMC=y
CONFIG_MMC_SDHCI=y
CONFIG_MMC_SDHCI_PLTFM=y
CONFIG_MMC_DW=y
-# CONFIG_IOMMU_SUPPORT is not set
CONFIG_EXT3_FS=y
CONFIG_VFAT_FS=y
CONFIG_TMPFS=y
diff --git a/arch/arc/include/asm/cmpxchg.h b/arch/arc/include/asm/cmpxchg.h
index d819de1c5d10..3ea4112c8302 100644
--- a/arch/arc/include/asm/cmpxchg.h
+++ b/arch/arc/include/asm/cmpxchg.h
@@ -92,8 +92,11 @@ __cmpxchg(volatile void *ptr, unsigned long expected, unsigned long new)
#endif /* CONFIG_ARC_HAS_LLSC */
-#define cmpxchg(ptr, o, n) ((typeof(*(ptr)))__cmpxchg((ptr), \
- (unsigned long)(o), (unsigned long)(n)))
+#define cmpxchg(ptr, o, n) ({ \
+ (typeof(*(ptr)))__cmpxchg((ptr), \
+ (unsigned long)(o), \
+ (unsigned long)(n)); \
+})
/*
* atomic_cmpxchg is same as cmpxchg
@@ -198,8 +201,11 @@ static inline unsigned long __xchg(unsigned long val, volatile void *ptr,
return __xchg_bad_pointer();
}
-#define xchg(ptr, with) ((typeof(*(ptr)))__xchg((unsigned long)(with), (ptr), \
- sizeof(*(ptr))))
+#define xchg(ptr, with) ({ \
+ (typeof(*(ptr)))__xchg((unsigned long)(with), \
+ (ptr), \
+ sizeof(*(ptr))); \
+})
#endif /* CONFIG_ARC_PLAT_EZNPS */
diff --git a/arch/arc/include/uapi/asm/Kbuild b/arch/arc/include/uapi/asm/Kbuild
index 1c72f04ff75d..e78470141932 100644
--- a/arch/arc/include/uapi/asm/Kbuild
+++ b/arch/arc/include/uapi/asm/Kbuild
@@ -1 +1,2 @@
+# SPDX-License-Identifier: GPL-2.0
generic-y += ucontext.h
diff --git a/arch/arc/mm/fault.c b/arch/arc/mm/fault.c
index 8df1638259f3..6836095251ed 100644
--- a/arch/arc/mm/fault.c
+++ b/arch/arc/mm/fault.c
@@ -66,7 +66,7 @@ void do_page_fault(unsigned long address, struct pt_regs *regs)
struct vm_area_struct *vma = NULL;
struct task_struct *tsk = current;
struct mm_struct *mm = tsk->mm;
- int si_code = 0;
+ int si_code = SEGV_MAPERR;
int ret;
vm_fault_t fault;
int write = regs->ecr_cause & ECR_C_PROTV_STORE; /* ST/EX */
@@ -81,16 +81,14 @@ void do_page_fault(unsigned long address, struct pt_regs *regs)
* only copy the information from the master page table,
* nothing more.
*/
- if (address >= VMALLOC_START) {
+ if (address >= VMALLOC_START && !user_mode(regs)) {
ret = handle_kernel_vaddr_fault(address);
if (unlikely(ret))
- goto bad_area_nosemaphore;
+ goto no_context;
else
return;
}
- si_code = SEGV_MAPERR;
-
/*
* If we're in an interrupt or have no user
* context, we must not take the fault..
@@ -198,7 +196,6 @@ good_area:
bad_area:
up_read(&mm->mmap_sem);
-bad_area_nosemaphore:
/* User mode accesses just cause a SIGSEGV */
if (user_mode(regs)) {
tsk->thread.fault_address = address;
diff --git a/arch/arc/mm/tlb.c b/arch/arc/mm/tlb.c
index 4097764fea23..fa18c00b0cfd 100644
--- a/arch/arc/mm/tlb.c
+++ b/arch/arc/mm/tlb.c
@@ -911,9 +911,11 @@ void do_tlb_overlap_fault(unsigned long cause, unsigned long address,
struct pt_regs *regs)
{
struct cpuinfo_arc_mmu *mmu = &cpuinfo_arc700[smp_processor_id()].mmu;
- unsigned int pd0[mmu->ways];
unsigned long flags;
- int set;
+ int set, n_ways = mmu->ways;
+
+ n_ways = min(n_ways, 4);
+ BUG_ON(mmu->ways > 4);
local_irq_save(flags);
@@ -921,9 +923,10 @@ void do_tlb_overlap_fault(unsigned long cause, unsigned long address,
for (set = 0; set < mmu->sets; set++) {
int is_valid, way;
+ unsigned int pd0[4];
/* read out all the ways of current set */
- for (way = 0, is_valid = 0; way < mmu->ways; way++) {
+ for (way = 0, is_valid = 0; way < n_ways; way++) {
write_aux_reg(ARC_REG_TLBINDEX,
SET_WAY_TO_IDX(mmu, set, way));
write_aux_reg(ARC_REG_TLBCOMMAND, TLBRead);
@@ -937,14 +940,14 @@ void do_tlb_overlap_fault(unsigned long cause, unsigned long address,
continue;
/* Scan the set for duplicate ways: needs a nested loop */
- for (way = 0; way < mmu->ways - 1; way++) {
+ for (way = 0; way < n_ways - 1; way++) {
int n;
if (!pd0[way])
continue;
- for (n = way + 1; n < mmu->ways; n++) {
+ for (n = way + 1; n < n_ways; n++) {
if (pd0[way] != pd0[n])
continue;
diff --git a/arch/arc/plat-axs10x/axs10x.c b/arch/arc/plat-axs10x/axs10x.c
index 46544e88492d..63ea5a606ecd 100644
--- a/arch/arc/plat-axs10x/axs10x.c
+++ b/arch/arc/plat-axs10x/axs10x.c
@@ -1,17 +1,8 @@
+// SPDX-License-Identifier: GPL-2.0-only
/*
* AXS101/AXS103 Software Development Platform
*
* Copyright (C) 2013-15 Synopsys, Inc. (www.synopsys.com)
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
*/
#include <linux/of_fdt.h>
generated by cgit v1.2.3 (git 2.39.1) at 2024-12-28 22:29:56 +0100