-static void dce_v10_0_stop_mc_access(struct amdgpu_device *adev,
- struct amdgpu_mode_mc_save *save)
-{
- u32 crtc_enabled, tmp;
- int i;
-
- save->vga_render_control = RREG32(mmVGA_RENDER_CONTROL);
- save->vga_hdp_control = RREG32(mmVGA_HDP_CONTROL);
-
- /* disable VGA render */
- tmp = RREG32(mmVGA_RENDER_CONTROL);
- tmp = REG_SET_FIELD(tmp, VGA_RENDER_CONTROL, VGA_VSTATUS_CNTL, 0);
- WREG32(mmVGA_RENDER_CONTROL, tmp);
-
- /* blank the display controllers */
- for (i = 0; i < adev->mode_info.num_crtc; i++) {
- crtc_enabled = REG_GET_FIELD(RREG32(mmCRTC_CONTROL + crtc_offsets[i]),
- CRTC_CONTROL, CRTC_MASTER_EN);
- if (crtc_enabled) {
-#if 0
- u32 frame_count;
- int j;
-
- save->crtc_enabled[i] = true;
- tmp = RREG32(mmCRTC_BLANK_CONTROL + crtc_offsets[i]);
- if (REG_GET_FIELD(tmp, CRTC_BLANK_CONTROL, CRTC_BLANK_DATA_EN) == 0) {
- amdgpu_display_vblank_wait(adev, i);
- WREG32(mmCRTC_UPDATE_LOCK + crtc_offsets[i], 1);
- tmp = REG_SET_FIELD(tmp, CRTC_BLANK_CONTROL, CRTC_BLANK_DATA_EN, 1);
- WREG32(mmCRTC_BLANK_CONTROL + crtc_offsets[i], tmp);
- WREG32(mmCRTC_UPDATE_LOCK + crtc_offsets[i], 0);
- }
- /* wait for the next frame */
- frame_count = amdgpu_display_vblank_get_counter(adev, i);
- for (j = 0; j < adev->usec_timeout; j++) {
- if (amdgpu_display_vblank_get_counter(adev, i) != frame_count)
- break;
- udelay(1);
- }
- tmp = RREG32(mmGRPH_UPDATE + crtc_offsets[i]);
- if (REG_GET_FIELD(tmp, GRPH_UPDATE, GRPH_UPDATE_LOCK) == 0) {
- tmp = REG_SET_FIELD(tmp, GRPH_UPDATE, GRPH_UPDATE_LOCK, 1);
- WREG32(mmGRPH_UPDATE + crtc_offsets[i], tmp);
- }
- tmp = RREG32(mmMASTER_UPDATE_LOCK + crtc_offsets[i]);
- if (REG_GET_FIELD(tmp, MASTER_UPDATE_LOCK, MASTER_UPDATE_LOCK) == 0) {
- tmp = REG_SET_FIELD(tmp, MASTER_UPDATE_LOCK, MASTER_UPDATE_LOCK, 1);
- WREG32(mmMASTER_UPDATE_LOCK + crtc_offsets[i], tmp);
- }
-#else
- /* XXX this is a hack to avoid strange behavior with EFI on certain systems */
- WREG32(mmCRTC_UPDATE_LOCK + crtc_offsets[i], 1);
- tmp = RREG32(mmCRTC_CONTROL + crtc_offsets[i]);
- tmp = REG_SET_FIELD(tmp, CRTC_CONTROL, CRTC_MASTER_EN, 0);
- WREG32(mmCRTC_CONTROL + crtc_offsets[i], tmp);
- WREG32(mmCRTC_UPDATE_LOCK + crtc_offsets[i], 0);
- save->crtc_enabled[i] = false;
- /* ***** */
-#endif
- } else {
- save->crtc_enabled[i] = false;
- }
- }
-}
-
-static void dce_v10_0_resume_mc_access(struct amdgpu_device *adev,
- struct amdgpu_mode_mc_save *save)
-{
- u32 tmp, frame_count;
- int i, j;
-
- /* update crtc base addresses */
- for (i = 0; i < adev->mode_info.num_crtc; i++) {
- WREG32(mmGRPH_PRIMARY_SURFACE_ADDRESS_HIGH + crtc_offsets[i],
- upper_32_bits(adev->mc.vram_start));
- WREG32(mmGRPH_SECONDARY_SURFACE_ADDRESS_HIGH + crtc_offsets[i],
- upper_32_bits(adev->mc.vram_start));
- WREG32(mmGRPH_PRIMARY_SURFACE_ADDRESS + crtc_offsets[i],
- (u32)adev->mc.vram_start);
- WREG32(mmGRPH_SECONDARY_SURFACE_ADDRESS + crtc_offsets[i],
- (u32)adev->mc.vram_start);
-
- if (save->crtc_enabled[i]) {
- tmp = RREG32(mmMASTER_UPDATE_MODE + crtc_offsets[i]);
- if (REG_GET_FIELD(tmp, MASTER_UPDATE_MODE, MASTER_UPDATE_MODE) != 0) {
- tmp = REG_SET_FIELD(tmp, MASTER_UPDATE_MODE, MASTER_UPDATE_MODE, 0);
- WREG32(mmMASTER_UPDATE_MODE + crtc_offsets[i], tmp);
- }
- tmp = RREG32(mmGRPH_UPDATE + crtc_offsets[i]);
- if (REG_GET_FIELD(tmp, GRPH_UPDATE, GRPH_UPDATE_LOCK)) {
- tmp = REG_SET_FIELD(tmp, GRPH_UPDATE, GRPH_UPDATE_LOCK, 0);
- WREG32(mmGRPH_UPDATE + crtc_offsets[i], tmp);
- }
- tmp = RREG32(mmMASTER_UPDATE_LOCK + crtc_offsets[i]);
- if (REG_GET_FIELD(tmp, MASTER_UPDATE_LOCK, MASTER_UPDATE_LOCK)) {
- tmp = REG_SET_FIELD(tmp, MASTER_UPDATE_LOCK, MASTER_UPDATE_LOCK, 0);
- WREG32(mmMASTER_UPDATE_LOCK + crtc_offsets[i], tmp);
- }
- for (j = 0; j < adev->usec_timeout; j++) {
- tmp = RREG32(mmGRPH_UPDATE + crtc_offsets[i]);
- if (REG_GET_FIELD(tmp, GRPH_UPDATE, GRPH_SURFACE_UPDATE_PENDING) == 0)
- break;
- udelay(1);
- }
- tmp = RREG32(mmCRTC_BLANK_CONTROL + crtc_offsets[i]);
- tmp = REG_SET_FIELD(tmp, CRTC_BLANK_CONTROL, CRTC_BLANK_DATA_EN, 0);
- WREG32(mmCRTC_UPDATE_LOCK + crtc_offsets[i], 1);
- WREG32(mmCRTC_BLANK_CONTROL + crtc_offsets[i], tmp);
- WREG32(mmCRTC_UPDATE_LOCK + crtc_offsets[i], 0);
- /* wait for the next frame */
- frame_count = amdgpu_display_vblank_get_counter(adev, i);
- for (j = 0; j < adev->usec_timeout; j++) {
- if (amdgpu_display_vblank_get_counter(adev, i) != frame_count)
- break;
- udelay(1);
- }
- }
- }
-
- WREG32(mmVGA_MEMORY_BASE_ADDRESS_HIGH, upper_32_bits(adev->mc.vram_start));
- WREG32(mmVGA_MEMORY_BASE_ADDRESS, lower_32_bits(adev->mc.vram_start));
-
- /* Unlock vga access */
- WREG32(mmVGA_HDP_CONTROL, save->vga_hdp_control);
- mdelay(1);
- WREG32(mmVGA_RENDER_CONTROL, save->vga_render_control);
-}
-