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drm/radeon/kms: add dpm support for cayman (v5)

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This adds dpm support for cayman asics.  This includes:
- clockgating
- dynamic engine clock scaling
- dynamic memory clock scaling
- dynamic voltage scaling
- dynamic pcie gen1/gen2 switching (requires additional acpi support)
- power containment
- shader power scaling

Set radeon.dpm=1 to enable.

v2: fold in tdp fix
v3: fix indentation
v4: fix 64 bit div
v5: attempt to fix state enable

Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Reviewed-by: Jerome Glisse <jglisse@redhat.com>
This commit is contained in:
Alex Deucher
2013-04-12 16:42:42 -04:00
parent d22b7e406a
commit 69e0b57a91
16 changed files with 5344 additions and 28 deletions
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11
drivers/gpu/drm/radeon/cypress_dpm.c
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@@ -45,9 +45,6 @@ struct rv7xx_ps *rv770_get_ps(struct radeon_ps *rps);
struct rv7xx_power_info *rv770_get_pi(struct radeon_device *rdev);
struct evergreen_power_info *evergreen_get_pi(struct radeon_device *rdev);
static u8 cypress_get_mclk_frequency_ratio(struct radeon_device *rdev,
u32 memory_clock, bool strobe_mode);
static void cypress_enable_bif_dynamic_pcie_gen2(struct radeon_device *rdev,
bool enable)
{
@@ -416,7 +413,7 @@ static int cypress_populate_voltage_value(struct radeon_device *rdev,
return 0;
}
static u8 cypress_get_strobe_mode_settings(struct radeon_device *rdev, u32 mclk)
u8 cypress_get_strobe_mode_settings(struct radeon_device *rdev, u32 mclk)
{
struct rv7xx_power_info *pi = rv770_get_pi(rdev);
u8 result = 0;
@@ -434,7 +431,7 @@ static u8 cypress_get_strobe_mode_settings(struct radeon_device *rdev, u32 mclk)
return result;
}
static u32 cypress_map_clkf_to_ibias(struct radeon_device *rdev, u32 clkf)
u32 cypress_map_clkf_to_ibias(struct radeon_device *rdev, u32 clkf)
{
u32 ref_clk = rdev->clock.mpll.reference_freq;
u32 vco = clkf * ref_clk;
@@ -603,8 +600,8 @@ static int cypress_populate_mclk_value(struct radeon_device *rdev,
return 0;
}
static u8 cypress_get_mclk_frequency_ratio(struct radeon_device *rdev,
u32 memory_clock, bool strobe_mode)
u8 cypress_get_mclk_frequency_ratio(struct radeon_device *rdev,
u32 memory_clock, bool strobe_mode)
{
u8 mc_para_index;