From: Christian König Date: Mon, 8 Apr 2013 10:41:31 +0000 (+0200) Subject: drm/radeon: add radeon_atom_get_clock_dividers helper X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=7062ab67d4c6568ec423da39321423721b925fdc;p=GitHub%2Fexynos8895%2Fandroid_kernel_samsung_universal8895.git drm/radeon: add radeon_atom_get_clock_dividers helper Signed-off-by: Christian König Reviewed-by: Jerome Glisse Signed-off-by: Alex Deucher --- diff --git a/drivers/gpu/drm/radeon/radeon.h b/drivers/gpu/drm/radeon/radeon.h index ac614a45b27f..fb1780a28139 100644 --- a/drivers/gpu/drm/radeon/radeon.h +++ b/drivers/gpu/drm/radeon/radeon.h @@ -206,6 +206,11 @@ void radeon_pm_suspend(struct radeon_device *rdev); void radeon_pm_resume(struct radeon_device *rdev); void radeon_combios_get_power_modes(struct radeon_device *rdev); void radeon_atombios_get_power_modes(struct radeon_device *rdev); +int radeon_atom_get_clock_dividers(struct radeon_device *rdev, + u8 clock_type, + u32 clock, + bool strobe_mode, + struct atom_clock_dividers *dividers); void radeon_atom_set_voltage(struct radeon_device *rdev, u16 voltage_level, u8 voltage_type); void rs690_pm_info(struct radeon_device *rdev); extern int rv6xx_get_temp(struct radeon_device *rdev); diff --git a/drivers/gpu/drm/radeon/radeon_atombios.c b/drivers/gpu/drm/radeon/radeon_atombios.c index f22eb5713528..8c1779cba1f3 100644 --- a/drivers/gpu/drm/radeon/radeon_atombios.c +++ b/drivers/gpu/drm/radeon/radeon_atombios.c @@ -2654,6 +2654,113 @@ void radeon_atombios_get_power_modes(struct radeon_device *rdev) rdev->pm.current_vddc = 0; } +union get_clock_dividers { + struct _COMPUTE_MEMORY_ENGINE_PLL_PARAMETERS v1; + struct _COMPUTE_MEMORY_ENGINE_PLL_PARAMETERS_V2 v2; + struct _COMPUTE_MEMORY_ENGINE_PLL_PARAMETERS_V3 v3; + struct _COMPUTE_MEMORY_ENGINE_PLL_PARAMETERS_V4 v4; + struct _COMPUTE_MEMORY_ENGINE_PLL_PARAMETERS_V5 v5; +}; + +int radeon_atom_get_clock_dividers(struct radeon_device *rdev, + u8 clock_type, + u32 clock, + bool strobe_mode, + struct atom_clock_dividers *dividers) +{ + union get_clock_dividers args; + int index = GetIndexIntoMasterTable(COMMAND, ComputeMemoryEnginePLL); + u8 frev, crev; + + memset(&args, 0, sizeof(args)); + memset(dividers, 0, sizeof(struct atom_clock_dividers)); + + if (!atom_parse_cmd_header(rdev->mode_info.atom_context, index, &frev, &crev)) + return -EINVAL; + + switch (crev) { + case 1: + /* r4xx, r5xx */ + args.v1.ucAction = clock_type; + args.v1.ulClock = cpu_to_le32(clock); /* 10 khz */ + + atom_execute_table(rdev->mode_info.atom_context, index, (uint32_t *)&args); + + dividers->post_div = args.v1.ucPostDiv; + dividers->fb_div = args.v1.ucFbDiv; + dividers->enable_post_div = true; + break; + case 2: + case 3: + /* r6xx, r7xx, evergreen, ni */ + if (rdev->family <= CHIP_RV770) { + args.v2.ucAction = clock_type; + args.v2.ulClock = cpu_to_le32(clock); /* 10 khz */ + + atom_execute_table(rdev->mode_info.atom_context, index, (uint32_t *)&args); + + dividers->post_div = args.v2.ucPostDiv; + dividers->fb_div = le16_to_cpu(args.v2.usFbDiv); + dividers->ref_div = args.v2.ucAction; + if (rdev->family == CHIP_RV770) { + dividers->enable_post_div = (le32_to_cpu(args.v2.ulClock) & (1 << 24)) ? + true : false; + dividers->vco_mode = (le32_to_cpu(args.v2.ulClock) & (1 << 25)) ? 1 : 0; + } else + dividers->enable_post_div = (dividers->fb_div & 1) ? true : false; + } else { + if (clock_type == COMPUTE_ENGINE_PLL_PARAM) { + args.v3.ulClock.ulComputeClockFlag = clock_type; + args.v3.ulClock.ulClockFreq = cpu_to_le32(clock); /* 10 khz */ + + atom_execute_table(rdev->mode_info.atom_context, index, (uint32_t *)&args); + + dividers->post_div = args.v3.ucPostDiv; + dividers->enable_post_div = (args.v3.ucCntlFlag & + ATOM_PLL_CNTL_FLAG_PLL_POST_DIV_EN) ? true : false; + dividers->enable_dithen = (args.v3.ucCntlFlag & + ATOM_PLL_CNTL_FLAG_FRACTION_DISABLE) ? false : true; + dividers->fb_div = le16_to_cpu(args.v3.ulFbDiv.usFbDiv); + dividers->frac_fb_div = le16_to_cpu(args.v3.ulFbDiv.usFbDivFrac); + dividers->ref_div = args.v3.ucRefDiv; + dividers->vco_mode = (args.v3.ucCntlFlag & + ATOM_PLL_CNTL_FLAG_MPLL_VCO_MODE) ? 1 : 0; + } else { + args.v5.ulClock.ulComputeClockFlag = clock_type; + args.v5.ulClock.ulClockFreq = cpu_to_le32(clock); /* 10 khz */ + if (strobe_mode) + args.v5.ucInputFlag = ATOM_PLL_INPUT_FLAG_PLL_STROBE_MODE_EN; + + atom_execute_table(rdev->mode_info.atom_context, index, (uint32_t *)&args); + + dividers->post_div = args.v5.ucPostDiv; + dividers->enable_post_div = (args.v5.ucCntlFlag & + ATOM_PLL_CNTL_FLAG_PLL_POST_DIV_EN) ? true : false; + dividers->enable_dithen = (args.v5.ucCntlFlag & + ATOM_PLL_CNTL_FLAG_FRACTION_DISABLE) ? false : true; + dividers->whole_fb_div = le16_to_cpu(args.v5.ulFbDiv.usFbDiv); + dividers->frac_fb_div = le16_to_cpu(args.v5.ulFbDiv.usFbDivFrac); + dividers->ref_div = args.v5.ucRefDiv; + dividers->vco_mode = (args.v5.ucCntlFlag & + ATOM_PLL_CNTL_FLAG_MPLL_VCO_MODE) ? 1 : 0; + } + } + break; + case 4: + /* fusion */ + args.v4.ulClock = cpu_to_le32(clock); /* 10 khz */ + + atom_execute_table(rdev->mode_info.atom_context, index, (uint32_t *)&args); + + dividers->post_div = args.v4.ucPostDiv; + dividers->real_clock = le32_to_cpu(args.v4.ulClock); + break; + default: + return -EINVAL; + } + return 0; +} + void radeon_atom_set_clock_gating(struct radeon_device *rdev, int enable) { DYNAMIC_CLOCK_GATING_PS_ALLOCATION args; diff --git a/drivers/gpu/drm/radeon/radeon_mode.h b/drivers/gpu/drm/radeon/radeon_mode.h index 4003f5a68c09..44e579e75fd0 100644 --- a/drivers/gpu/drm/radeon/radeon_mode.h +++ b/drivers/gpu/drm/radeon/radeon_mode.h @@ -492,6 +492,29 @@ struct radeon_framebuffer { #define ENCODER_MODE_IS_DP(em) (((em) == ATOM_ENCODER_MODE_DP) || \ ((em) == ATOM_ENCODER_MODE_DP_MST)) +struct atom_clock_dividers { + u32 post_div; + union { + struct { +#ifdef __BIG_ENDIAN + u32 reserved : 6; + u32 whole_fb_div : 12; + u32 frac_fb_div : 14; +#else + u32 frac_fb_div : 14; + u32 whole_fb_div : 12; + u32 reserved : 6; +#endif + }; + u32 fb_div; + }; + u32 ref_div; + bool enable_post_div; + bool enable_dithen; + u32 vco_mode; + u32 real_clock; +}; + extern enum radeon_tv_std radeon_combios_get_tv_info(struct radeon_device *rdev); extern enum radeon_tv_std