drm/radeon/rs780: implement get_current_sclk/mclk (3c94566c) · Commits · 戴 / test

drivers/gpu/drm/radeon/radeon_asic.c

+2 −0

Original line number	Diff line number	Diff line
		@@ -1170,6 +1170,8 @@ static struct radeon_asic rs780_asic = {
		.print_power_state = &rs780_dpm_print_power_state,
		.debugfs_print_current_performance_level = &rs780_dpm_debugfs_print_current_performance_level,
		.force_performance_level = &rs780_dpm_force_performance_level,
		.get_current_sclk = &rs780_dpm_get_current_sclk,
		.get_current_mclk = &rs780_dpm_get_current_mclk,
		},
		.pflip = {
		.page_flip = &rs600_page_flip,

+2 −0

Original line number	Diff line number	Diff line
		@@ -449,6 +449,8 @@ void rs780_dpm_debugfs_print_current_performance_level(struct radeon_device *rde
		struct seq_file *m);
		int rs780_dpm_force_performance_level(struct radeon_device *rdev,
		enum radeon_dpm_forced_level level);
		u32 rs780_dpm_get_current_sclk(struct radeon_device *rdev);
		u32 rs780_dpm_get_current_mclk(struct radeon_device *rdev);

		/*
		* rv770,rv730,rv710,rv740

+22 −0

Original line number	Diff line number	Diff line
		@@ -1001,6 +1001,28 @@ void rs780_dpm_debugfs_print_current_performance_level(struct radeon_device *rde
		ps->sclk_high, ps->max_voltage);
		}

		/* get the current sclk in 10 khz units */
		u32 rs780_dpm_get_current_sclk(struct radeon_device *rdev)
		{
		u32 current_fb_div = RREG32(FVTHROT_STATUS_REG0) & CURRENT_FEEDBACK_DIV_MASK;
		u32 func_cntl = RREG32(CG_SPLL_FUNC_CNTL);
		u32 ref_div = ((func_cntl & SPLL_REF_DIV_MASK) >> SPLL_REF_DIV_SHIFT) + 1;
		u32 post_div = ((func_cntl & SPLL_SW_HILEN_MASK) >> SPLL_SW_HILEN_SHIFT) + 1 +
		((func_cntl & SPLL_SW_LOLEN_MASK) >> SPLL_SW_LOLEN_SHIFT) + 1;
		u32 sclk = (rdev->clock.spll.reference_freq * current_fb_div) /
		(post_div * ref_div);

		return sclk;
		}

		/* get the current mclk in 10 khz units */
		u32 rs780_dpm_get_current_mclk(struct radeon_device *rdev)
		{
		struct igp_power_info *pi = rs780_get_pi(rdev);

		return pi->bootup_uma_clk;
		}

		int rs780_dpm_force_performance_level(struct radeon_device *rdev,
		enum radeon_dpm_forced_level level)
		{