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drm/radeon: enable additional power gating features on trinity

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TN has some additional powergating features beyond what is
supported on ON/LN.

Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Alex Deucher
2013-02-15 16:26:33 -05:00
parent e0bcf1654d
commit 8ba104637b
4 changed files with 54 additions and 6 deletions
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35
drivers/gpu/drm/radeon/evergreen.c
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@@ -4035,10 +4035,15 @@ int sumo_rlc_init(struct radeon_device *rdev)
static void evergreen_rlc_start(struct radeon_device *rdev)
{
if (rdev->flags & RADEON_IS_IGP)
WREG32(RLC_CNTL, RLC_ENABLE | GFX_POWER_GATING_ENABLE | GFX_POWER_GATING_SRC);
else
WREG32(RLC_CNTL, RLC_ENABLE);
u32 mask = RLC_ENABLE;
if (rdev->flags & RADEON_IS_IGP) {
mask |= GFX_POWER_GATING_ENABLE | GFX_POWER_GATING_SRC;
if (rdev->family == CHIP_ARUBA)
mask |= DYN_PER_SIMD_PG_ENABLE | LB_CNT_SPIM_ACTIVE | LOAD_BALANCE_ENABLE;
}
WREG32(RLC_CNTL, mask);
}
int evergreen_rlc_resume(struct radeon_device *rdev)
@@ -4054,15 +4059,33 @@ int evergreen_rlc_resume(struct radeon_device *rdev)
WREG32(RLC_HB_CNTL, 0);
if (rdev->flags & RADEON_IS_IGP) {
if (rdev->family == CHIP_ARUBA) {
u32 always_on_bitmap =
3 | (3 << (16 * rdev->config.cayman.max_shader_engines));
/* find out the number of active simds */
u32 tmp = (RREG32(CC_GC_SHADER_PIPE_CONFIG) & 0xffff0000) >> 16;
tmp |= 0xffffffff << rdev->config.cayman.max_simds_per_se;
tmp = hweight32(~tmp);
if (tmp == rdev->config.cayman.max_simds_per_se) {
WREG32(TN_RLC_LB_ALWAYS_ACTIVE_SIMD_MASK, always_on_bitmap);
WREG32(TN_RLC_LB_PARAMS, 0x00601004);
WREG32(TN_RLC_LB_INIT_SIMD_MASK, 0xffffffff);
WREG32(TN_RLC_LB_CNTR_INIT, 0x00000000);
WREG32(TN_RLC_LB_CNTR_MAX, 0x00002000);
}
} else {
WREG32(RLC_HB_WPTR_LSB_ADDR, 0);
WREG32(RLC_HB_WPTR_MSB_ADDR, 0);
}
WREG32(TN_RLC_SAVE_AND_RESTORE_BASE, rdev->rlc.save_restore_gpu_addr >> 8);
WREG32(TN_RLC_CLEAR_STATE_RESTORE_BASE, rdev->rlc.clear_state_gpu_addr >> 8);
} else {
WREG32(RLC_HB_BASE, 0);
WREG32(RLC_HB_RPTR, 0);
WREG32(RLC_HB_WPTR, 0);
WREG32(RLC_HB_WPTR_LSB_ADDR, 0);
WREG32(RLC_HB_WPTR_MSB_ADDR, 0);
}
WREG32(RLC_HB_WPTR_LSB_ADDR, 0);
WREG32(RLC_HB_WPTR_MSB_ADDR, 0);
WREG32(RLC_MC_CNTL, 0);
WREG32(RLC_UCODE_CNTL, 0);