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authorAlex Deucher <alexdeucher@gmail.com>2008-09-18 16:42:22 -0400
committerAlex Deucher <alexdeucher@gmail.com>2008-09-18 16:42:22 -0400
commit6988176195450da9033a0f0f21eafc6ae0a7a6a4 (patch)
tree1ac027ded2b50ebec8a14075e229ce1bfbc752a0 /linux-core
parent34af71c42a66e5ef6a9a08250ca541030ca3cc4f (diff)
radeon: Add functions to set mem/eng clocks
Diffstat (limited to 'linux-core')
-rw-r--r--linux-core/radeon_atombios.c26
-rw-r--r--linux-core/radeon_display.c45
-rw-r--r--linux-core/radeon_reg.h7
3 files changed, 78 insertions, 0 deletions
diff --git a/linux-core/radeon_atombios.c b/linux-core/radeon_atombios.c
index 8bf6a7ce..4d48593b 100644
--- a/linux-core/radeon_atombios.c
+++ b/linux-core/radeon_atombios.c
@@ -450,6 +450,32 @@ void radeon_atom_static_pwrmgt_setup(struct drm_device *dev, int enable)
atom_execute_table(dev_priv->mode_info.atom_context, index, (uint32_t *)&args);
}
+void radeon_atom_set_engine_clock(struct drm_device *dev, int eng_clock)
+{
+ struct drm_radeon_private *dev_priv = dev->dev_private;
+ struct radeon_mode_info *mode_info = &dev_priv->mode_info;
+ struct atom_context *ctx = mode_info->atom_context;
+ SET_ENGINE_CLOCK_PS_ALLOCATION args;
+ int index = GetIndexIntoMasterTable(COMMAND, SetEngineClock);
+
+ args.ulTargetEngineClock = eng_clock; /* 10 khz */
+
+ atom_execute_table(dev_priv->mode_info.atom_context, index, (uint32_t *)&args);
+}
+
+void radeon_atom_set_memory_clock(struct drm_device *dev, int mem_clock)
+{
+ struct drm_radeon_private *dev_priv = dev->dev_private;
+ struct radeon_mode_info *mode_info = &dev_priv->mode_info;
+ struct atom_context *ctx = mode_info->atom_context;
+ SET_MEMORY_CLOCK_PS_ALLOCATION args;
+ int index = GetIndexIntoMasterTable(COMMAND, SetMemoryClock);
+
+ args.ulTargetMemoryClock = mem_clock; /* 10 khz */
+
+ atom_execute_table(dev_priv->mode_info.atom_context, index, (uint32_t *)&args);
+}
+
void radeon_atom_initialize_bios_scratch_regs(struct drm_device *dev)
{
struct drm_radeon_private *dev_priv = dev->dev_private;
diff --git a/linux-core/radeon_display.c b/linux-core/radeon_display.c
index 74037191..fd0855e5 100644
--- a/linux-core/radeon_display.c
+++ b/linux-core/radeon_display.c
@@ -543,6 +543,51 @@ void radeon_get_clock_info(struct drm_device *dev)
}
+/* not sure of the best place for these */
+/* 10 khz */
+void radeon_legacy_set_engine_clock(struct drm_device *dev, int eng_clock)
+{
+ struct drm_radeon_private *dev_priv = dev->dev_private;
+ struct radeon_mode_info *mode_info = &dev_priv->mode_info;
+ struct radeon_pll *spll = &mode_info->spll;
+ uint32_t ref_div, fb_div;
+ uint32_t m_spll_ref_fb_div;
+
+ /* FIXME wait for idle */
+
+ m_spll_ref_fb_div = RADEON_READ_PLL(dev_priv, RADEON_M_SPLL_REF_FB_DIV);
+ m_spll_ref_fb_div &= ((RADEON_M_SPLL_REF_DIV_MASK << RADEON_M_SPLL_REF_DIV_SHIFT) |
+ (RADEON_MPLL_FB_DIV_MASK << RADEON_MPLL_FB_DIV_SHIFT));
+ ref_div = m_spll_ref_fb_div & RADEON_M_SPLL_REF_DIV_MASK;
+
+ fb_div = radeon_div(eng_clock * ref_div, spll->reference_freq);
+ m_spll_ref_fb_div |= (fb_div & RADEON_SPLL_FB_DIV_MASK) << RADEON_SPLL_FB_DIV_SHIFT;
+ RADEON_WRITE_PLL(dev_priv, RADEON_M_SPLL_REF_FB_DIV, m_spll_ref_fb_div);
+
+}
+
+/* 10 khz */
+void radeon_legacy_set_memory_clock(struct drm_device *dev, int mem_clock)
+{
+ struct drm_radeon_private *dev_priv = dev->dev_private;
+ struct radeon_mode_info *mode_info = &dev_priv->mode_info;
+ struct radeon_pll *mpll = &mode_info->mpll;
+ uint32_t ref_div, fb_div;
+ uint32_t m_spll_ref_fb_div;
+
+ /* FIXME wait for idle */
+
+ m_spll_ref_fb_div = RADEON_READ_PLL(dev_priv, RADEON_M_SPLL_REF_FB_DIV);
+ m_spll_ref_fb_div &= ((RADEON_M_SPLL_REF_DIV_MASK << RADEON_M_SPLL_REF_DIV_SHIFT) |
+ (RADEON_SPLL_FB_DIV_MASK << RADEON_SPLL_FB_DIV_SHIFT));
+ ref_div = m_spll_ref_fb_div & RADEON_M_SPLL_REF_DIV_MASK;
+
+ fb_div = radeon_div(mem_clock * ref_div, mpll->reference_freq);
+ m_spll_ref_fb_div |= (fb_div & RADEON_MPLL_FB_DIV_MASK) << RADEON_MPLL_FB_DIV_SHIFT;
+ RADEON_WRITE_PLL(dev_priv, RADEON_M_SPLL_REF_FB_DIV, m_spll_ref_fb_div);
+
+}
+
static void radeon_user_framebuffer_destroy(struct drm_framebuffer *fb)
{
struct radeon_framebuffer *radeon_fb = to_radeon_framebuffer(fb);
diff --git a/linux-core/radeon_reg.h b/linux-core/radeon_reg.h
index c4bc7a80..113a8267 100644
--- a/linux-core/radeon_reg.h
+++ b/linux-core/radeon_reg.h
@@ -1549,6 +1549,13 @@
#define RADEON_SC_TOP_LEFT_C 0x1c88
# define RADEON_SC_SIGN_MASK_LO 0x8000
# define RADEON_SC_SIGN_MASK_HI 0x80000000
+#define RADEON_M_SPLL_REF_FB_DIV 0x000a /* PLL */
+# define RADEON_M_SPLL_REF_DIV_SHIFT 0
+# define RADEON_M_SPLL_REF_DIV_MASK 0xff
+# define RADEON_MPLL_FB_DIV_SHIFT 8
+# define RADEON_MPLL_FB_DIV_MASK 0xff
+# define RADEON_SPLL_FB_DIV_SHIFT 16
+# define RADEON_SPLL_FB_DIV_MASK 0xff
#define RADEON_SCLK_CNTL 0x000d /* PLL */
# define RADEON_SCLK_SRC_SEL_MASK 0x0007
# define RADEON_DYN_STOP_LAT_MASK 0x00007ff8