drm/radeon/kms: add dpm support for rs780/rs880
This adds dpm support for rs780/rs880 asics. This includes:
- clockgating
- dynamic engine clock scaling
- dynamic voltage scaling
set radeon.dpm=1 to enable it.
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
diff --git a/drivers/gpu/drm/radeon/rs780_dpm.h b/drivers/gpu/drm/radeon/rs780_dpm.h
new file mode 100644
index 0000000..47a40b1
--- /dev/null
+++ b/drivers/gpu/drm/radeon/rs780_dpm.h
@@ -0,0 +1,109 @@
+/*
+ * Copyright 2011 Advanced Micro Devices, Inc.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
+ * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ *
+ */
+#ifndef __RS780_DPM_H__
+#define __RS780_DPM_H__
+
+enum rs780_vddc_level {
+ RS780_VDDC_LEVEL_UNKNOWN = 0,
+ RS780_VDDC_LEVEL_LOW = 1,
+ RS780_VDDC_LEVEL_HIGH = 2,
+};
+
+struct igp_power_info {
+ /* flags */
+ bool invert_pwm_required;
+ bool pwm_voltage_control;
+ bool voltage_control;
+ bool gfx_clock_gating;
+ /* stored values */
+ u32 system_config;
+ u32 bootup_uma_clk;
+ u16 max_voltage;
+ u16 min_voltage;
+ u16 boot_voltage;
+ u16 inter_voltage_low;
+ u16 inter_voltage_high;
+ u16 num_of_cycles_in_period;
+ /* variable */
+ int crtc_id;
+ int refresh_rate;
+};
+
+struct igp_ps {
+ enum rs780_vddc_level min_voltage;
+ enum rs780_vddc_level max_voltage;
+ u32 sclk_low;
+ u32 sclk_high;
+ u32 flags;
+};
+
+#define RS780_CGFTV_DFLT 0x0303000f
+#define RS780_FBDIVTIMERVAL_DFLT 0x2710
+
+#define RS780_FVTHROTUTC0_DFLT 0x04010040
+#define RS780_FVTHROTUTC1_DFLT 0x04010040
+#define RS780_FVTHROTUTC2_DFLT 0x04010040
+#define RS780_FVTHROTUTC3_DFLT 0x04010040
+#define RS780_FVTHROTUTC4_DFLT 0x04010040
+
+#define RS780_FVTHROTDTC0_DFLT 0x04010040
+#define RS780_FVTHROTDTC1_DFLT 0x04010040
+#define RS780_FVTHROTDTC2_DFLT 0x04010040
+#define RS780_FVTHROTDTC3_DFLT 0x04010040
+#define RS780_FVTHROTDTC4_DFLT 0x04010040
+
+#define RS780_FVTHROTFBUSREG0_DFLT 0x00001001
+#define RS780_FVTHROTFBUSREG1_DFLT 0x00002002
+#define RS780_FVTHROTFBDSREG0_DFLT 0x00004001
+#define RS780_FVTHROTFBDSREG1_DFLT 0x00020010
+
+#define RS780_FVTHROTPWMUSREG0_DFLT 0x00002001
+#define RS780_FVTHROTPWMUSREG1_DFLT 0x00004003
+#define RS780_FVTHROTPWMDSREG0_DFLT 0x00002001
+#define RS780_FVTHROTPWMDSREG1_DFLT 0x00004003
+
+#define RS780_FVTHROTPWMFBDIVRANGEREG0_DFLT 0x37
+#define RS780_FVTHROTPWMFBDIVRANGEREG1_DFLT 0x4b
+#define RS780_FVTHROTPWMFBDIVRANGEREG2_DFLT 0x8b
+
+#define RS780D_FVTHROTPWMFBDIVRANGEREG0_DFLT 0x8b
+#define RS780D_FVTHROTPWMFBDIVRANGEREG1_DFLT 0x8c
+#define RS780D_FVTHROTPWMFBDIVRANGEREG2_DFLT 0xb5
+
+#define RS880D_FVTHROTPWMFBDIVRANGEREG0_DFLT 0x8d
+#define RS880D_FVTHROTPWMFBDIVRANGEREG1_DFLT 0x8e
+#define RS880D_FVTHROTPWMFBDIVRANGEREG2_DFLT 0xBa
+
+#define RS780_FVTHROTPWMRANGE0_GPIO_DFLT 0x1a
+#define RS780_FVTHROTPWMRANGE1_GPIO_DFLT 0x1a
+#define RS780_FVTHROTPWMRANGE2_GPIO_DFLT 0x0
+#define RS780_FVTHROTPWMRANGE3_GPIO_DFLT 0x0
+
+#define RS780_SLOWCLKFEEDBACKDIV_DFLT 110
+
+#define RS780_CGCLKGATING_DFLT 0x0000E204
+
+#define RS780_DEFAULT_VCLK_FREQ 53300 /* 10 khz */
+#define RS780_DEFAULT_DCLK_FREQ 40000 /* 10 khz */
+
+#endif