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| author | Chris Metcalf <cmetcalf@tilera.com> | 2013-09-03 14:45:52 -0400 |
|---|---|---|
| committer | Chris Metcalf <cmetcalf@tilera.com> | 2013-09-03 14:45:52 -0400 |
| commit | 051168df528fe4456d63f5f65b041c147c26fe97 (patch) | |
| tree | 789109ca42db49bf4d8c0c2794cf55659a171a39 /arch/tile/include | |
| parent | 309272f99f3e65b9bb5c49a2901c63a1859172f3 (diff) | |
| download | op-kernel-dev-051168df528fe4456d63f5f65b041c147c26fe97.zip op-kernel-dev-051168df528fe4456d63f5f65b041c147c26fe97.tar.gz | |
tile: don't assume user privilege is zero
Technically, user privilege is anything less than kernel
privilege. We modify the existing user_mode() macro to have
this semantic (and use it in a couple of places it wasn't being
used before), and add an IS_KERNEL_EX1() macro to the assembly
code as well.
Signed-off-by: Chris Metcalf <cmetcalf@tilera.com>
Diffstat (limited to 'arch/tile/include')
| -rw-r--r-- | arch/tile/include/asm/processor.h | 4 | ||||
| -rw-r--r-- | arch/tile/include/asm/ptrace.h | 2 |
2 files changed, 3 insertions, 3 deletions
diff --git a/arch/tile/include/asm/processor.h b/arch/tile/include/asm/processor.h index 230b830..c72fcba 100644 --- a/arch/tile/include/asm/processor.h +++ b/arch/tile/include/asm/processor.h @@ -15,6 +15,8 @@ #ifndef _ASM_TILE_PROCESSOR_H #define _ASM_TILE_PROCESSOR_H +#include <arch/chip.h> + #ifndef __ASSEMBLY__ /* @@ -25,7 +27,6 @@ #include <asm/ptrace.h> #include <asm/percpu.h> -#include <arch/chip.h> #include <arch/spr_def.h> struct task_struct; @@ -347,7 +348,6 @@ extern int kdata_huge; /* * Provide symbolic constants for PLs. - * Note that assembly code assumes that USER_PL is zero. */ #define USER_PL 0 #if CONFIG_KERNEL_PL == 2 diff --git a/arch/tile/include/asm/ptrace.h b/arch/tile/include/asm/ptrace.h index 0d25c21..b9620c0 100644 --- a/arch/tile/include/asm/ptrace.h +++ b/arch/tile/include/asm/ptrace.h @@ -39,7 +39,7 @@ typedef unsigned long pt_reg_t; #define user_stack_pointer(regs) ((regs)->sp) /* Does the process account for user or for system time? */ -#define user_mode(regs) (EX1_PL((regs)->ex1) == USER_PL) +#define user_mode(regs) (EX1_PL((regs)->ex1) < KERNEL_PL) /* Fill in a struct pt_regs with the current kernel registers. */ struct pt_regs *get_pt_regs(struct pt_regs *); |
