xiaomi-sm8450/android_kernel_xiaomi_sm8450
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

powerpc: Introduce functions for instruction equality

Browse Source 
In preparation for an instruction data type that can not be directly
used with the '==' operator use functions for checking equality.

Signed-off-by: Jordan Niethe <jniethe5@gmail.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Reviewed-by: Balamuruhan S <bala24@linux.ibm.com>
Link: https://lore.kernel.org/r/20200506034050.24806-11-jniethe5@gmail.com
This commit is contained in:
Jordan Niethe
2020-05-06 13:40:30 +10:00
committed by Michael Ellerman
parent aabd2233b6
commit 217862d9b9
4 changed files with 21 additions and 15 deletions
Download Patch File Download Diff File Expand all files Collapse all files

12
arch/powerpc/lib/code-patching.c
View File

@@ -479,7 +479,7 @@ static void __init test_branch_iform(void)
/* Check flags are masked correctly */
err = create_branch(&instr, &instr, addr, 0xFFFFFFFC);
check(instr_is_branch_to_addr(&instr, addr));
check(instr == ppc_inst(0x48000000));
check(ppc_inst_equal(instr, ppc_inst(0x48000000)));
}
static void __init test_create_function_call(void)
@@ -564,7 +564,7 @@ static void __init test_branch_bform(void)
/* Check flags are masked correctly */
err = create_cond_branch(&instr, iptr, addr, 0xFFFFFFFC);
check(instr_is_branch_to_addr(&instr, addr));
check(instr == ppc_inst(0x43FF0000));
check(ppc_inst_equal(instr, ppc_inst(0x43FF0000)));
}
static void __init test_translate_branch(void)
@@ -598,7 +598,7 @@ static void __init test_translate_branch(void)
patch_instruction(q, instr);
check(instr_is_branch_to_addr(p, addr));
check(instr_is_branch_to_addr(q, addr));
check(*q == ppc_inst(0x4a000000));
check(ppc_inst_equal(*q, ppc_inst(0x4a000000)));
/* Maximum positive case, move x to x - 32 MB + 4 */
p = buf + 0x2000000;
@@ -609,7 +609,7 @@ static void __init test_translate_branch(void)
patch_instruction(q, instr);
check(instr_is_branch_to_addr(p, addr));
check(instr_is_branch_to_addr(q, addr));
check(*q == ppc_inst(0x49fffffc));
check(ppc_inst_equal(*q, ppc_inst(0x49fffffc)));
/* Jump to x + 16 MB moved to x + 20 MB */
p = buf;
@@ -655,7 +655,7 @@ static void __init test_translate_branch(void)
patch_instruction(q, instr);
check(instr_is_branch_to_addr(p, addr));
check(instr_is_branch_to_addr(q, addr));
check(*q == ppc_inst(0x43ff8000));
check(ppc_inst_equal(*q, ppc_inst(0x43ff8000)));
/* Maximum positive case, move x to x - 32 KB + 4 */
p = buf + 0x8000;
@@ -667,7 +667,7 @@ static void __init test_translate_branch(void)
patch_instruction(q, instr);
check(instr_is_branch_to_addr(p, addr));
check(instr_is_branch_to_addr(q, addr));
check(*q == ppc_inst(0x43ff7ffc));
check(ppc_inst_equal(*q, ppc_inst(0x43ff7ffc)));
/* Jump to x + 12 KB moved to x + 20 KB */
p = buf;