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Commit bbc5986d authored by Robert Richter's avatar Robert Richter
Browse files

x86/oprofile: use 64 bit wrmsr functions 



This patch replaces some wrmsr() functions with wrmsrl().

Signed-off-by: default avatarRobert Richter <robert.richter@amd.com>
parent 217d3cfb

arch/x86/oprofile/op_model_amd.c

+4 −3
Original line number Diff line number Diff line
@@ -101,14 +101,15 @@ static void op_amd_setup_ctrs(struct op_x86_model_spec const *model, 
	for (i = 0; i < NUM_COUNTERS; ++i) {

		if (unlikely(!msrs->counters[i].addr))

			continue;

		wrmsr(msrs->counters[i].addr, -1, -1);

		wrmsrl(msrs->counters[i].addr, -1LL);

	}



	/* enable active counters */

	for (i = 0; i < NUM_COUNTERS; ++i) {

		if (counter_config[i].enabled && msrs->counters[i].addr) {

			reset_value[i] = counter_config[i].count;

			wrmsr(msrs->counters[i].addr, -(unsigned int)counter_config[i].count, -1);

			wrmsrl(msrs->counters[i].addr,

			       -(s64)counter_config[i].count);

			rdmsrl(msrs->controls[i].addr, val);

			val &= model->reserved;

			val |= op_x86_get_ctrl(model, &counter_config[i]);
@@ -251,7 +252,7 @@ static int op_amd_check_ctrs(struct pt_regs * const regs, 
		if (val & OP_CTR_OVERFLOW)

			continue;

		oprofile_add_sample(regs, i);

		wrmsr(msrs->counters[i].addr, -(unsigned int)reset_value[i], -1);

		wrmsrl(msrs->counters[i].addr, -(s64)reset_value[i]);

	}



	op_amd_handle_ibs(regs, msrs);

arch/x86/oprofile/op_model_p4.c

+6 −6
Original line number Diff line number Diff line
@@ -579,8 +579,8 @@ static void p4_setup_ctrs(struct op_x86_model_spec const *model, 
		if (counter_config[i].enabled && msrs->controls[i].addr) {

			reset_value[i] = counter_config[i].count;

			pmc_setup_one_p4_counter(i);

			wrmsr(p4_counters[VIRT_CTR(stag, i)].counter_address,

			      -(u32)counter_config[i].count, -1);

			wrmsrl(p4_counters[VIRT_CTR(stag, i)].counter_address,

			       -(s64)counter_config[i].count);

		} else {

			reset_value[i] = 0;

		}
@@ -624,12 +624,12 @@ static int p4_check_ctrs(struct pt_regs * const regs, 
		rdmsr(p4_counters[real].counter_address, ctr, high);

		if (CCCR_OVF_P(low) || !(ctr & OP_CTR_OVERFLOW)) {

			oprofile_add_sample(regs, i);

			wrmsr(p4_counters[real].counter_address,

			      -(u32)reset_value[i], -1);

			wrmsrl(p4_counters[real].counter_address,

			       -(s64)reset_value[i]);

			CCCR_CLEAR_OVF(low);

			wrmsr(p4_counters[real].cccr_address, low, high);

			wrmsr(p4_counters[real].counter_address,

			      -(u32)reset_value[i], -1);

			wrmsrl(p4_counters[real].counter_address,

			       -(s64)reset_value[i]);

		}

	}