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| author | Alex Deucher <alexander.deucher@amd.com> | 2016-09-30 06:30:21 +0300 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2016-10-25 21:38:02 +0300 |
| commit | 1d160f430301d033053fc3a5237324d17552390b (patch) | |
| tree | 1968286db709c34440991f35c213d32a80b0310d /drivers/gpu/drm/amd/amdgpu/dce_v6_0.c | |
| parent | 5481e27f6fd06b7cb902072e81d6b083db8155eb (diff) | |
| download | linux-1d160f430301d033053fc3a5237324d17552390b.tar.xz | |
drm/amdgpu/dce6: add dce_v6_0_disable_dce
Needed for virtual dce support
Reviewed-By: Emily Deng <Emily.Deng@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers/gpu/drm/amd/amdgpu/dce_v6_0.c')
| -rw-r--r-- | drivers/gpu/drm/amd/amdgpu/dce_v6_0.c | 50 |
1 files changed, 46 insertions, 4 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/dce_v6_0.c b/drivers/gpu/drm/amd/amdgpu/dce_v6_0.c index b948d6cb1399..e6a7687dec21 100644 --- a/drivers/gpu/drm/amd/amdgpu/dce_v6_0.c +++ b/drivers/gpu/drm/amd/amdgpu/dce_v6_0.c @@ -611,12 +611,55 @@ static void dce_v6_0_resume_mc_access(struct amdgpu_device *adev, static void dce_v6_0_set_vga_render_state(struct amdgpu_device *adev, bool render) { - if (!render) + if (!render) WREG32(R_000300_VGA_RENDER_CONTROL, RREG32(R_000300_VGA_RENDER_CONTROL) & C_000300_VGA_VSTATUS_CNTL); } +static int dce_v6_0_get_num_crtc(struct amdgpu_device *adev) +{ + int num_crtc = 0; + + switch (adev->asic_type) { + case CHIP_TAHITI: + case CHIP_PITCAIRN: + case CHIP_VERDE: + num_crtc = 6; + break; + case CHIP_OLAND: + num_crtc = 2; + break; + default: + num_crtc = 0; + } + return num_crtc; +} + +void dce_v6_0_disable_dce(struct amdgpu_device *adev) +{ + /*Disable VGA render and enabled crtc, if has DCE engine*/ + if (amdgpu_atombios_has_dce_engine_info(adev)) { + u32 tmp; + int crtc_enabled, i; + + dce_v6_0_set_vga_render_state(adev, false); + + /*Disable crtc*/ + for (i = 0; i < dce_v6_0_get_num_crtc(adev); i++) { + crtc_enabled = RREG32(EVERGREEN_CRTC_CONTROL + crtc_offsets[i]) & + EVERGREEN_CRTC_MASTER_EN; + if (crtc_enabled) { + WREG32(EVERGREEN_CRTC_UPDATE_LOCK + crtc_offsets[i], 1); + tmp = RREG32(EVERGREEN_CRTC_CONTROL + crtc_offsets[i]); + tmp &= ~EVERGREEN_CRTC_MASTER_EN; + WREG32(EVERGREEN_CRTC_CONTROL + crtc_offsets[i], tmp); + WREG32(EVERGREEN_CRTC_UPDATE_LOCK + crtc_offsets[i], 0); + } + } + } +} + static void dce_v6_0_program_fmt(struct drm_encoder *encoder) { @@ -2338,21 +2381,20 @@ static int dce_v6_0_early_init(void *handle) dce_v6_0_set_display_funcs(adev); dce_v6_0_set_irq_funcs(adev); + adev->mode_info.num_crtc = dce_v6_0_get_num_crtc(adev); + switch (adev->asic_type) { case CHIP_TAHITI: case CHIP_PITCAIRN: case CHIP_VERDE: - adev->mode_info.num_crtc = 6; adev->mode_info.num_hpd = 6; adev->mode_info.num_dig = 6; break; case CHIP_OLAND: - adev->mode_info.num_crtc = 2; adev->mode_info.num_hpd = 2; adev->mode_info.num_dig = 2; break; default: - /* FIXME: not supported yet */ return -EINVAL; } |