accelerants/nvidia/ProposeDisplayMode.c

108  * returns B_BAD_VALUE. It's called by the OS with target, low and high set to
117  * The target mode should be modified to correspond to the mode as it can be made. */
119 PROPOSE_DISPLAY_MODE(display_mode *target, const display_mode *low, const display_mode *high)
127 	double target_refresh = ((double)target->timing.pixel_clock * 1000.0)
128 		/ ((double)target->timing.h_total * (double)target->timing.v_total);
129 	bool want_same_width = target->timing.h_display == target->virtual_width;
130 	bool want_same_height = target->timing.v_display == target->virtual_height;
133 		target->virtual_width, target->virtual_height));
136 	result = head1_validate_timing(&target->timing.h_display,
137 		&target->timing.h_sync_start, &target->timing.h_sync_end,
138 		&target->timing.h_total, &target->timing.v_display,
139 		&target->timing.v_sync_start, &target->timing.v_sync_end,
140 		&target->timing.v_total);
148 		|| !(BT_check_tvmode(*target) && (target->flags & TV_BITS))) {
153 		target_aspect = (target->timing.h_display / ((float)target->timing.v_display));
197 		if ((target->timing.h_display - 2) > si->ps.crtc1_screen.timing.h_display
198 			|| target->timing.v_display > si->ps.crtc1_screen.timing.v_display) {
204 		if ((target->timing.h_display - 2) > si->ps.crtc2_screen.timing.h_display
205 			|| target->timing.v_display > si->ps.crtc2_screen.timing.v_display) {
212 	if (target->timing.h_display > target->virtual_width || want_same_width)
213 		target->virtual_width = target->timing.h_display;
214 	if (target->timing.v_display > target->virtual_height || want_same_height)
215 		target->virtual_height = target->timing.v_display;
218 	result = nv_general_validate_pic_size(target, &row_bytes, &acc_mode);
225 	if (target->virtual_width < low->virtual_width
226 		|| target->virtual_width > high->virtual_width) {
232 	if (target->timing.h_display < low->timing.h_display
233 		|| target->timing.h_display > high->timing.h_display
234 		|| target->timing.h_sync_start < low->timing.h_sync_start
235 		|| target->timing.h_sync_start > high->timing.h_sync_start
236 		|| target->timing.h_sync_end < low->timing.h_sync_end
237 		|| target->timing.h_sync_end > high->timing.h_sync_end
238 		|| target->timing.h_total < low->timing.h_total
239 		|| target->timing.h_total > high->timing.h_total) {
241 		if (target->timing.h_display < low->timing.h_display
242 			|| target->timing.h_display > high->timing.h_display)
249 	if (target->timing.v_display < low->timing.v_display
250 		|| target->timing.v_display > high->timing.v_display
251 		|| target->timing.v_sync_start < low->timing.v_sync_start
252 		|| target->timing.v_sync_start > high->timing.v_sync_start
253 		|| target->timing.v_sync_end < low->timing.v_sync_end
254 		|| target->timing.v_sync_end > high->timing.v_sync_end
255 		|| target->timing.v_total < low->timing.v_total
256 		|| target->timing.v_total > high->timing.v_total) {
258 		if (target->timing.v_display < low->timing.v_display
259 			|| target->timing.v_display > high->timing.v_display)
266 	target->timing.pixel_clock = target_refresh * ((double)target->timing.h_total)
267 		* ((double)target->timing.v_total) / 1000.0;
269 	/* Now find the nearest valid pixelclock we actually can setup for the target mode,
272 	result = head1_pix_pll_find(*target, &pix_clock_found, &m, &n, &p, 0);
273 	/* update the target mode */
274 	target->timing.pixel_clock = pix_clock_found * 1000;
277 	if (target->timing.pixel_clock < low->timing.pixel_clock
278 		|| target->timing.pixel_clock > high->timing.pixel_clock) {
280 		if (target->timing.pixel_clock < low->timing.pixel_clock - 1000
281 			|| target->timing.pixel_clock > high->timing.pixel_clock + 1000)
300 	if (row_bytes * target->virtual_height > si->ps.memory_size - mem_reservation) {
301 		target->virtual_height = (si->ps.memory_size - mem_reservation) / row_bytes;
303 	if (target->virtual_height < target->timing.v_display) {
309 		target->virtual_width, target->virtual_height));
311 	if (target->virtual_height < low->virtual_height
312 		|| target->virtual_height > high->virtual_height) {
318 	LOG(1, ("PROPOSEMODE: initial modeflags: $%08x\n", target->flags));
322 	target->flags &=
330 	target->flags |= (B_PARALLEL_ACCESS | B_8_BIT_DAC | B_DPMS | B_SCROLL);
333 	switch (target->space) {
360 	if (si->ps.secondary_head && target->timing.pixel_clock <= (max_vclk * 1000)) {
361 		switch (target->flags & DUALHEAD_BITS) {
365 						>= row_bytes * target->virtual_height
366 					&& (uint16)(row_bytes / bpp) >= target->timing.h_display * 2)
367 					target->flags |= DUALHEAD_CAPABLE;
371 						>= row_bytes * target->virtual_height)
372 					target->flags |= DUALHEAD_CAPABLE;
376 						>= row_bytes * target->virtual_height * 2)
377 					target->flags |= DUALHEAD_CAPABLE;
383 	if (!(target->flags & DUALHEAD_CAPABLE))
384 		target->flags &= ~DUALHEAD_BITS;
387 	if (si->ps.tvout && BT_check_tvmode(*target))
388 		target->flags |= TV_CAPABLE;
391 	if (!(target->flags & TV_CAPABLE))
392 		target->flags &= ~TV_BITS;
395 	if (target->flags & TV_BITS) {
397 			target->flags |= TV_PRIMARY;
398 		else if ((target->flags & DUALHEAD_BITS) == DUALHEAD_OFF)
399 			target->flags |= TV_PRIMARY;
401 		target->flags &= ~TV_PRIMARY;
405 		target->flags |= B_HARDWARE_CURSOR;
409 		target->flags |= B_SUPPORTS_OVERLAYS;
411 	LOG(1, ("PROPOSEMODE: validated modeflags: $%08x\n", target->flags));
415 	target->timing.flags &= ~(B_BLANK_PEDESTAL | B_TIMING_INTERLACED | B_SYNC_ON_GREEN);
489 			/* set target values */