RISC-V: capitalise CMO op macros

The CMO op macros initially used lower case, as the original iteration
of the ALT_CMO_OP alternative stringified the first parameter to
finalise the assembly for the standard variant.
As a knock-on, the T-Head versions of these CMOs had to use mixed case
defines. Commit dd23e95 ("RISC-V: replace cbom instructions with
an insn-def") removed the asm construction with stringify, replacing it
an insn-def macro, rending the lower-case surplus to requirements.
As far as I can tell from a brief check, CBO_zero does not see similar
use and didn't require the mixed case define in the first place.
Replace the lower case characters now for consistency with other
insn-def macros in the standard and T-Head forms, and adjust the
callsites.

Suggested-by: Andrew Jones <[email protected]>
Signed-off-by: Conor Dooley <[email protected]>
Reviewed-by: Andrew Jones <[email protected]>
Link: https://lore.kernel.org/r/20230915-aloe-dollar-994937477776@spud
Signed-off-by: Palmer Dabbelt <[email protected]>

Author: ConchuOD

arch/riscv/include/asm/errata_list.h

@@ -117,9 +117,9 @@ asm volatile(ALTERNATIVE(						\
  * | 31 - 25 | 24 - 20 | 19 - 15 | 14 - 12 | 11 - 7 | 6 - 0 |
  *   0000000    11001     00000      000      00000  0001011
  */
-#define THEAD_inval_A0	".long 0x0265000b"
-#define THEAD_clean_A0	".long 0x0255000b"
-#define THEAD_flush_A0	".long 0x0275000b"
+#define THEAD_INVAL_A0	".long 0x0265000b"
+#define THEAD_CLEAN_A0	".long 0x0255000b"
+#define THEAD_FLUSH_A0	".long 0x0275000b"
 #define THEAD_SYNC_S	".long 0x0190000b"
 
 #define ALT_CMO_OP(_op, _start, _size, _cachesize)			\

arch/riscv/include/asm/insn-def.h

@@ -180,19 +180,19 @@
 	INSN_R(OPCODE_SYSTEM, FUNC3(0), FUNC7(51),		\
 	       __RD(0), RS1(gaddr), RS2(vmid))
 
-#define CBO_inval(base)						\
+#define CBO_INVAL(base)						\
 	INSN_I(OPCODE_MISC_MEM, FUNC3(2), __RD(0),		\
 	       RS1(base), SIMM12(0))
 
-#define CBO_clean(base)						\
+#define CBO_CLEAN(base)						\
 	INSN_I(OPCODE_MISC_MEM, FUNC3(2), __RD(0),		\
 	       RS1(base), SIMM12(1))
 
-#define CBO_flush(base)						\
+#define CBO_FLUSH(base)						\
 	INSN_I(OPCODE_MISC_MEM, FUNC3(2), __RD(0),		\
 	       RS1(base), SIMM12(2))
 
-#define CBO_zero(base)						\
+#define CBO_ZERO(base)						\
 	INSN_I(OPCODE_MISC_MEM, FUNC3(2), __RD(0),		\
 	       RS1(base), SIMM12(4))
 

arch/riscv/lib/clear_page.S

@@ -29,41 +29,41 @@ SYM_FUNC_START(clear_page)
 	lw	a1, riscv_cboz_block_size
 	add	a2, a0, a2
 .Lzero_loop:
-	CBO_zero(a0)
+	CBO_ZERO(a0)
 	add	a0, a0, a1
 	CBOZ_ALT(11, "bltu a0, a2, .Lzero_loop; ret", "nop; nop")
-	CBO_zero(a0)
+	CBO_ZERO(a0)
 	add	a0, a0, a1
 	CBOZ_ALT(10, "bltu a0, a2, .Lzero_loop; ret", "nop; nop")
-	CBO_zero(a0)
+	CBO_ZERO(a0)
 	add	a0, a0, a1
-	CBO_zero(a0)
+	CBO_ZERO(a0)
 	add	a0, a0, a1
 	CBOZ_ALT(9, "bltu a0, a2, .Lzero_loop; ret", "nop; nop")
-	CBO_zero(a0)
+	CBO_ZERO(a0)
 	add	a0, a0, a1
-	CBO_zero(a0)
+	CBO_ZERO(a0)
 	add	a0, a0, a1
-	CBO_zero(a0)
+	CBO_ZERO(a0)
 	add	a0, a0, a1
-	CBO_zero(a0)
+	CBO_ZERO(a0)
 	add	a0, a0, a1
 	CBOZ_ALT(8, "bltu a0, a2, .Lzero_loop; ret", "nop; nop")
-	CBO_zero(a0)
+	CBO_ZERO(a0)
 	add	a0, a0, a1
-	CBO_zero(a0)
+	CBO_ZERO(a0)
 	add	a0, a0, a1
-	CBO_zero(a0)
+	CBO_ZERO(a0)
 	add	a0, a0, a1
-	CBO_zero(a0)
+	CBO_ZERO(a0)
 	add	a0, a0, a1
-	CBO_zero(a0)
+	CBO_ZERO(a0)
 	add	a0, a0, a1
-	CBO_zero(a0)
+	CBO_ZERO(a0)
 	add	a0, a0, a1
-	CBO_zero(a0)
+	CBO_ZERO(a0)
 	add	a0, a0, a1
-	CBO_zero(a0)
+	CBO_ZERO(a0)
 	add	a0, a0, a1
 	bltu	a0, a2, .Lzero_loop
 	ret

arch/riscv/mm/dma-noncoherent.c

@@ -31,7 +31,7 @@ static inline void arch_dma_cache_wback(phys_addr_t paddr, size_t size)
 		return;
 	}
 #endif
-	ALT_CMO_OP(clean, vaddr, size, riscv_cbom_block_size);
+	ALT_CMO_OP(CLEAN, vaddr, size, riscv_cbom_block_size);
 }
 
 static inline void arch_dma_cache_inv(phys_addr_t paddr, size_t size)
@@ -45,7 +45,7 @@ static inline void arch_dma_cache_inv(phys_addr_t paddr, size_t size)
 	}
 #endif
 
-	ALT_CMO_OP(inval, vaddr, size, riscv_cbom_block_size);
+	ALT_CMO_OP(INVAL, vaddr, size, riscv_cbom_block_size);
 }
 
 static inline void arch_dma_cache_wback_inv(phys_addr_t paddr, size_t size)
@@ -59,7 +59,7 @@ static inline void arch_dma_cache_wback_inv(phys_addr_t paddr, size_t size)
 	}
 #endif
 
-	ALT_CMO_OP(flush, vaddr, size, riscv_cbom_block_size);
+	ALT_CMO_OP(FLUSH, vaddr, size, riscv_cbom_block_size);
 }
 
 static inline bool arch_sync_dma_clean_before_fromdevice(void)
@@ -131,7 +131,7 @@ void arch_dma_prep_coherent(struct page *page, size_t size)
 	}
 #endif
 
-	ALT_CMO_OP(flush, flush_addr, size, riscv_cbom_block_size);
+	ALT_CMO_OP(FLUSH, flush_addr, size, riscv_cbom_block_size);
 }
 
 void arch_setup_dma_ops(struct device *dev, u64 dma_base, u64 size,

arch/riscv/mm/pmem.c

@@ -17,7 +17,7 @@ void arch_wb_cache_pmem(void *addr, size_t size)
 		return;
 	}
 #endif
-	ALT_CMO_OP(clean, addr, size, riscv_cbom_block_size);
+	ALT_CMO_OP(CLEAN, addr, size, riscv_cbom_block_size);
 }
 EXPORT_SYMBOL_GPL(arch_wb_cache_pmem);
 
@@ -29,6 +29,6 @@ void arch_invalidate_pmem(void *addr, size_t size)
 		return;
 	}
 #endif
-	ALT_CMO_OP(inval, addr, size, riscv_cbom_block_size);
+	ALT_CMO_OP(INVAL, addr, size, riscv_cbom_block_size);
 }
 EXPORT_SYMBOL_GPL(arch_invalidate_pmem);