Re: [PATCH v2 1/2] MIPS: cpu-probe: move fpu probing/handling into its own file

From: Sergei Shtylyov
Date: Sat Oct 10 2020 - 05:05:07 EST


Hello!

On 10.10.2020 3:30, Maciej W. Rozycki wrote:

+ /*
+ * MAC2008 toolchain never landed in real world, so we're only
+ * testing whether it can be disabled and don't try to enabled
+ * it.
+ */
+ fcsr0 = fcsr & ~(FPU_CSR_ABS2008 | FPU_CSR_NAN2008 | FPU_CSR_MAC2008);
+ write_32bit_cp1_register(CP1_STATUS, fcsr0);
+ fcsr0 = read_32bit_cp1_register(CP1_STATUS);
+
+ fcsr1 = fcsr | FPU_CSR_ABS2008 | FPU_CSR_NAN2008;
+ write_32bit_cp1_register(CP1_STATUS, fcsr1);
+ fcsr1 = read_32bit_cp1_register(CP1_STATUS);
+
+ write_32bit_cp1_register(CP1_STATUS, fcsr);
+
+ if (c->isa_level & (MIPS_CPU_ISA_M32R2 | MIPS_CPU_ISA_M64R2)) {
+ /*
+ * The bit for MAC2008 might be reused by R6 in future,
+ * so we only test for R2-R5.
+ */

Umm, this has formatting issues with lines extending beyond column #80.

80 columns are no longer a line length limit -- 100 is, IIRC.

Maciej

MBR, Sergei