[PATCH 05/11] drm/radeon: add radeon_atom_get_clock_dividers helper
Christian König
deathsimple at vodafone.de
Sat Apr 6 06:24:55 PDT 2013
Signed-off-by: Christian König <christian.koenig at amd.com>
Reviewed-by: Jerome Glisse <jglisse at redhat.com>
---
drivers/gpu/drm/radeon/radeon.h | 5 ++
drivers/gpu/drm/radeon/radeon_atombios.c | 107 ++++++++++++++++++++++++++++++
drivers/gpu/drm/radeon/radeon_mode.h | 23 +++++++
3 files changed, 135 insertions(+)
diff --git a/drivers/gpu/drm/radeon/radeon.h b/drivers/gpu/drm/radeon/radeon.h
index 8c5b7e8..25b5b39 100644
--- a/drivers/gpu/drm/radeon/radeon.h
+++ b/drivers/gpu/drm/radeon/radeon.h
@@ -205,6 +205,11 @@ 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 f22eb57..8c1779c 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 4003f5a..44e579e 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
--
1.7.9.5
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