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Commit 90637595 authored by Robert Richter's avatar Robert Richter
Browse files

x86/oprofile: remove #ifdefs in ibs functions 



IBS code is moved to separate functions. This allows the removal
of #ifdefs in functions.

Signed-off-by: default avatarRobert Richter <robert.richter@amd.com>
parent fecfe632

arch/x86/oprofile/op_model_amd.c

+46 −34
Original line number Diff line number Diff line
@@ -220,6 +220,50 @@ op_amd_handle_ibs(struct pt_regs * const regs, 
	return 1;

}



static inline void op_amd_start_ibs(void)

{

	unsigned int low, high;

	if (has_ibs && ibs_config.fetch_enabled) {

		low = (ibs_config.max_cnt_fetch >> 4) & 0xFFFF;

		high = ((ibs_config.rand_en & 0x1) << 25) /* bit 57 */

			+ IBS_FETCH_HIGH_ENABLE;

		wrmsr(MSR_AMD64_IBSFETCHCTL, low, high);

	}



	if (has_ibs && ibs_config.op_enabled) {

		low = ((ibs_config.max_cnt_op >> 4) & 0xFFFF)

			+ ((ibs_config.dispatched_ops & 0x1) << 19) /* bit 19 */

			+ IBS_OP_LOW_ENABLE;

		high = 0;

		wrmsr(MSR_AMD64_IBSOPCTL, low, high);

	}

}



static void op_amd_stop_ibs(void)

{

	unsigned int low, high;

	if (has_ibs && ibs_config.fetch_enabled) {

		/* clear max count and enable */

		low = 0;

		high = 0;

		wrmsr(MSR_AMD64_IBSFETCHCTL, low, high);

	}



	if (has_ibs && ibs_config.op_enabled) {

		/* clear max count and enable */

		low = 0;

		high = 0;

		wrmsr(MSR_AMD64_IBSOPCTL, low, high);

	}

}



#else



static inline int op_amd_handle_ibs(struct pt_regs * const regs,

				    struct op_msrs const * const msrs) { }

static inline void op_amd_start_ibs(void) { }

static inline void op_amd_stop_ibs(void) { }



#endif



static int op_amd_check_ctrs(struct pt_regs * const regs,
@@ -238,9 +282,7 @@ static int op_amd_check_ctrs(struct pt_regs * const regs, 
		}

	}



#ifdef CONFIG_OPROFILE_IBS

	op_amd_handle_ibs(regs, msrs);

#endif



	/* See op_model_ppro.c */

	return 1;
@@ -258,24 +300,8 @@ static void op_amd_start(struct op_msrs const * const msrs) 
		}

	}



#ifdef CONFIG_OPROFILE_IBS

	if (has_ibs && ibs_config.fetch_enabled) {

		low = (ibs_config.max_cnt_fetch >> 4) & 0xFFFF;

		high = ((ibs_config.rand_en & 0x1) << 25) /* bit 57 */

			+ IBS_FETCH_HIGH_ENABLE;

		wrmsr(MSR_AMD64_IBSFETCHCTL, low, high);

	}



	if (has_ibs && ibs_config.op_enabled) {

		low = ((ibs_config.max_cnt_op >> 4) & 0xFFFF)

			+ ((ibs_config.dispatched_ops & 0x1) << 19) /* bit 19 */

			+ IBS_OP_LOW_ENABLE;

		high = 0;

		wrmsr(MSR_AMD64_IBSOPCTL, low, high);

	op_amd_start_ibs();

}

#endif

}





static void op_amd_stop(struct op_msrs const * const msrs)

{
@@ -294,21 +320,7 @@ static void op_amd_stop(struct op_msrs const * const msrs) 
		CTRL_WRITE(low, high, msrs, i);

	}



#ifdef CONFIG_OPROFILE_IBS

	if (has_ibs && ibs_config.fetch_enabled) {

		/* clear max count and enable */

		low = 0;

		high = 0;

		wrmsr(MSR_AMD64_IBSFETCHCTL, low, high);

	}



	if (has_ibs && ibs_config.op_enabled) {

		/* clear max count and enable */

		low = 0;

		high = 0;

		wrmsr(MSR_AMD64_IBSOPCTL, low, high);

	}

#endif

	op_amd_stop_ibs();

}



static void op_amd_shutdown(struct op_msrs const * const msrs)