WREG32(AVIVO_D1GRPH_LUT_SEL + radeon_crtc->crtc_offset, radeon_crtc->crtc_id);
}
+static void evergreen_crtc_load_lut(struct drm_crtc *crtc)
+{
+ struct radeon_crtc *radeon_crtc = to_radeon_crtc(crtc);
+ struct drm_device *dev = crtc->dev;
+ struct radeon_device *rdev = dev->dev_private;
+ int i;
+
+ DRM_DEBUG("%d\n", radeon_crtc->crtc_id);
+ WREG32(EVERGREEN_DC_LUT_CONTROL + radeon_crtc->crtc_offset, 0);
+
+ WREG32(EVERGREEN_DC_LUT_BLACK_OFFSET_BLUE + radeon_crtc->crtc_offset, 0);
+ WREG32(EVERGREEN_DC_LUT_BLACK_OFFSET_GREEN + radeon_crtc->crtc_offset, 0);
+ WREG32(EVERGREEN_DC_LUT_BLACK_OFFSET_RED + radeon_crtc->crtc_offset, 0);
+
+ WREG32(EVERGREEN_DC_LUT_WHITE_OFFSET_BLUE + radeon_crtc->crtc_offset, 0xffff);
+ WREG32(EVERGREEN_DC_LUT_WHITE_OFFSET_GREEN + radeon_crtc->crtc_offset, 0xffff);
+ WREG32(EVERGREEN_DC_LUT_WHITE_OFFSET_RED + radeon_crtc->crtc_offset, 0xffff);
+
+ WREG32(EVERGREEN_DC_LUT_RW_MODE, radeon_crtc->crtc_id);
+ WREG32(EVERGREEN_DC_LUT_WRITE_EN_MASK, 0x00000007);
+
+ WREG32(EVERGREEN_DC_LUT_RW_INDEX, 0);
+ for (i = 0; i < 256; i++) {
+ WREG32(EVERGREEN_DC_LUT_30_COLOR,
+ (radeon_crtc->lut_r[i] << 20) |
+ (radeon_crtc->lut_g[i] << 10) |
+ (radeon_crtc->lut_b[i] << 0));
+ }
+}
+
static void legacy_crtc_load_lut(struct drm_crtc *crtc)
{
struct radeon_crtc *radeon_crtc = to_radeon_crtc(crtc);
if (!crtc->enabled)
return;
- if (ASIC_IS_AVIVO(rdev))
+ if (ASIC_IS_DCE4(rdev))
+ evergreen_crtc_load_lut(crtc);
+ else if (ASIC_IS_AVIVO(rdev))
avivo_crtc_load_lut(crtc);
else
legacy_crtc_load_lut(crtc);
int radeon_ddc_get_modes(struct radeon_connector *radeon_connector)
{
+ struct drm_device *dev = radeon_connector->base.dev;
+ struct radeon_device *rdev = dev->dev_private;
int ret = 0;
if ((radeon_connector->base.connector_type == DRM_MODE_CONNECTOR_DisplayPort) ||
if (!radeon_connector->ddc_bus)
return -1;
if (!radeon_connector->edid) {
- radeon_i2c_do_lock(radeon_connector->ddc_bus, 1);
radeon_connector->edid = drm_get_edid(&radeon_connector->base, &radeon_connector->ddc_bus->adapter);
- radeon_i2c_do_lock(radeon_connector->ddc_bus, 0);
}
-
+ /* some servers provide a hardcoded edid in rom for KVMs */
+ if (!radeon_connector->edid)
+ radeon_connector->edid = radeon_combios_get_hardcoded_edid(rdev);
if (radeon_connector->edid) {
drm_mode_connector_update_edid_property(&radeon_connector->base, radeon_connector->edid);
ret = drm_add_edid_modes(&radeon_connector->base, radeon_connector->edid);
if (!radeon_connector->ddc_bus)
return -1;
- radeon_i2c_do_lock(radeon_connector->ddc_bus, 1);
edid = drm_get_edid(connector, &radeon_connector->ddc_bus->adapter);
- radeon_i2c_do_lock(radeon_connector->ddc_bus, 0);
if (edid) {
kfree(edid);
}
return n;
}
-void radeon_compute_pll(struct radeon_pll *pll,
- uint64_t freq,
- uint32_t *dot_clock_p,
- uint32_t *fb_div_p,
- uint32_t *frac_fb_div_p,
- uint32_t *ref_div_p,
- uint32_t *post_div_p)
+static void radeon_compute_pll_legacy(struct radeon_pll *pll,
+ uint64_t freq,
+ uint32_t *dot_clock_p,
+ uint32_t *fb_div_p,
+ uint32_t *frac_fb_div_p,
+ uint32_t *ref_div_p,
+ uint32_t *post_div_p)
{
uint32_t min_ref_div = pll->min_ref_div;
uint32_t max_ref_div = pll->max_ref_div;
*post_div_p = best_post_div;
}
-void radeon_compute_pll_avivo(struct radeon_pll *pll,
- uint64_t freq,
- uint32_t *dot_clock_p,
- uint32_t *fb_div_p,
- uint32_t *frac_fb_div_p,
- uint32_t *ref_div_p,
- uint32_t *post_div_p)
+static bool
+calc_fb_div(struct radeon_pll *pll,
+ uint32_t freq,
+ uint32_t post_div,
+ uint32_t ref_div,
+ uint32_t *fb_div,
+ uint32_t *fb_div_frac)
{
- fixed20_12 m, n, frac_n, p, f_vco, f_pclk, best_freq;
- fixed20_12 pll_out_max, pll_out_min;
- fixed20_12 pll_in_max, pll_in_min;
- fixed20_12 reference_freq;
- fixed20_12 error, ffreq, a, b;
-
- pll_out_max.full = rfixed_const(pll->pll_out_max);
- pll_out_min.full = rfixed_const(pll->pll_out_min);
- pll_in_max.full = rfixed_const(pll->pll_in_max);
- pll_in_min.full = rfixed_const(pll->pll_in_min);
- reference_freq.full = rfixed_const(pll->reference_freq);
- do_div(freq, 10);
+ fixed20_12 feedback_divider, a, b;
+ u32 vco_freq;
+
+ vco_freq = freq * post_div;
+ /* feedback_divider = vco_freq * ref_div / pll->reference_freq; */
+ a.full = rfixed_const(pll->reference_freq);
+ feedback_divider.full = rfixed_const(vco_freq);
+ feedback_divider.full = rfixed_div(feedback_divider, a);
+ a.full = rfixed_const(ref_div);
+ feedback_divider.full = rfixed_mul(feedback_divider, a);
+
+ if (pll->flags & RADEON_PLL_USE_FRAC_FB_DIV) {
+ /* feedback_divider = floor((feedback_divider * 10.0) + 0.5) * 0.1; */
+ a.full = rfixed_const(10);
+ feedback_divider.full = rfixed_mul(feedback_divider, a);
+ feedback_divider.full += rfixed_const_half(0);
+ feedback_divider.full = rfixed_floor(feedback_divider);
+ feedback_divider.full = rfixed_div(feedback_divider, a);
+
+ /* *fb_div = floor(feedback_divider); */
+ a.full = rfixed_floor(feedback_divider);
+ *fb_div = rfixed_trunc(a);
+ /* *fb_div_frac = fmod(feedback_divider, 1.0) * 10.0; */
+ a.full = rfixed_const(10);
+ b.full = rfixed_mul(feedback_divider, a);
+
+ feedback_divider.full = rfixed_floor(feedback_divider);
+ feedback_divider.full = rfixed_mul(feedback_divider, a);
+ feedback_divider.full = b.full - feedback_divider.full;
+ *fb_div_frac = rfixed_trunc(feedback_divider);
+ } else {
+ /* *fb_div = floor(feedback_divider + 0.5); */
+ feedback_divider.full += rfixed_const_half(0);
+ feedback_divider.full = rfixed_floor(feedback_divider);
+
+ *fb_div = rfixed_trunc(feedback_divider);
+ *fb_div_frac = 0;
+ }
+
+ if (((*fb_div) < pll->min_feedback_div) || ((*fb_div) > pll->max_feedback_div))
+ return false;
+ else
+ return true;
+}
+
+static bool
+calc_fb_ref_div(struct radeon_pll *pll,
+ uint32_t freq,
+ uint32_t post_div,
+ uint32_t *fb_div,
+ uint32_t *fb_div_frac,
+ uint32_t *ref_div)
+{
+ fixed20_12 ffreq, max_error, error, pll_out, a;
+ u32 vco;
+
ffreq.full = rfixed_const(freq);
- error.full = rfixed_const(100 * 100);
+ /* max_error = ffreq * 0.0025; */
+ a.full = rfixed_const(400);
+ max_error.full = rfixed_div(ffreq, a);
- /* max p */
- p.full = rfixed_div(pll_out_max, ffreq);
- p.full = rfixed_floor(p);
+ for ((*ref_div) = pll->min_ref_div; (*ref_div) < pll->max_ref_div; ++(*ref_div)) {
+ if (calc_fb_div(pll, freq, post_div, (*ref_div), fb_div, fb_div_frac)) {
+ vco = pll->reference_freq * (((*fb_div) * 10) + (*fb_div_frac));
+ vco = vco / ((*ref_div) * 10);
- /* min m */
- m.full = rfixed_div(reference_freq, pll_in_max);
- m.full = rfixed_ceil(m);
+ if ((vco < pll->pll_out_min) || (vco > pll->pll_out_max))
+ continue;
- while (1) {
- n.full = rfixed_div(ffreq, reference_freq);
- n.full = rfixed_mul(n, m);
- n.full = rfixed_mul(n, p);
+ /* pll_out = vco / post_div; */
+ a.full = rfixed_const(post_div);
+ pll_out.full = rfixed_const(vco);
+ pll_out.full = rfixed_div(pll_out, a);
- f_vco.full = rfixed_div(n, m);
- f_vco.full = rfixed_mul(f_vco, reference_freq);
+ if (pll_out.full >= ffreq.full) {
+ error.full = pll_out.full - ffreq.full;
+ if (error.full <= max_error.full)
+ return true;
+ }
+ }
+ }
+ return false;
+}
- f_pclk.full = rfixed_div(f_vco, p);
+static void radeon_compute_pll_new(struct radeon_pll *pll,
+ uint64_t freq,
+ uint32_t *dot_clock_p,
+ uint32_t *fb_div_p,
+ uint32_t *frac_fb_div_p,
+ uint32_t *ref_div_p,
+ uint32_t *post_div_p)
+{
+ u32 fb_div = 0, fb_div_frac = 0, post_div = 0, ref_div = 0;
+ u32 best_freq = 0, vco_frequency;
- if (f_pclk.full > ffreq.full)
- error.full = f_pclk.full - ffreq.full;
- else
- error.full = ffreq.full - f_pclk.full;
- error.full = rfixed_div(error, f_pclk);
- a.full = rfixed_const(100 * 100);
- error.full = rfixed_mul(error, a);
-
- a.full = rfixed_mul(m, p);
- a.full = rfixed_div(n, a);
- best_freq.full = rfixed_mul(reference_freq, a);
-
- if (rfixed_trunc(error) < 25)
- break;
-
- a.full = rfixed_const(1);
- m.full = m.full + a.full;
- a.full = rfixed_div(reference_freq, m);
- if (a.full >= pll_in_min.full)
- continue;
+ /* freq = freq / 10; */
+ do_div(freq, 10);
- m.full = rfixed_div(reference_freq, pll_in_max);
- m.full = rfixed_ceil(m);
- a.full= rfixed_const(1);
- p.full = p.full - a.full;
- a.full = rfixed_mul(p, ffreq);
- if (a.full >= pll_out_min.full)
- continue;
- else {
- DRM_ERROR("Unable to find pll dividers\n");
- break;
+ if (pll->flags & RADEON_PLL_USE_POST_DIV) {
+ post_div = pll->post_div;
+ if ((post_div < pll->min_post_div) || (post_div > pll->max_post_div))
+ goto done;
+
+ vco_frequency = freq * post_div;
+ if ((vco_frequency < pll->pll_out_min) || (vco_frequency > pll->pll_out_max))
+ goto done;
+
+ if (pll->flags & RADEON_PLL_USE_REF_DIV) {
+ ref_div = pll->reference_div;
+ if ((ref_div < pll->min_ref_div) || (ref_div > pll->max_ref_div))
+ goto done;
+ if (!calc_fb_div(pll, freq, post_div, ref_div, &fb_div, &fb_div_frac))
+ goto done;
+ }
+ } else {
+ for (post_div = pll->max_post_div; post_div >= pll->min_post_div; --post_div) {
+ if (pll->flags & RADEON_PLL_LEGACY) {
+ if ((post_div == 5) ||
+ (post_div == 7) ||
+ (post_div == 9) ||
+ (post_div == 10) ||
+ (post_div == 11))
+ continue;
+ }
+
+ if ((pll->flags & RADEON_PLL_NO_ODD_POST_DIV) && (post_div & 1))
+ continue;
+
+ vco_frequency = freq * post_div;
+ if ((vco_frequency < pll->pll_out_min) || (vco_frequency > pll->pll_out_max))
+ continue;
+ if (pll->flags & RADEON_PLL_USE_REF_DIV) {
+ ref_div = pll->reference_div;
+ if ((ref_div < pll->min_ref_div) || (ref_div > pll->max_ref_div))
+ goto done;
+ if (calc_fb_div(pll, freq, post_div, ref_div, &fb_div, &fb_div_frac))
+ break;
+ } else {
+ if (calc_fb_ref_div(pll, freq, post_div, &fb_div, &fb_div_frac, &ref_div))
+ break;
+ }
}
}
- a.full = rfixed_const(10);
- b.full = rfixed_mul(n, a);
+ best_freq = pll->reference_freq * 10 * fb_div;
+ best_freq += pll->reference_freq * fb_div_frac;
+ best_freq = best_freq / (ref_div * post_div);
- frac_n.full = rfixed_floor(n);
- frac_n.full = rfixed_mul(frac_n, a);
- frac_n.full = b.full - frac_n.full;
+done:
+ if (best_freq == 0)
+ DRM_ERROR("Couldn't find valid PLL dividers\n");
- *dot_clock_p = rfixed_trunc(best_freq);
- *fb_div_p = rfixed_trunc(n);
- *frac_fb_div_p = rfixed_trunc(frac_n);
- *ref_div_p = rfixed_trunc(m);
- *post_div_p = rfixed_trunc(p);
+ *dot_clock_p = best_freq / 10;
+ *fb_div_p = fb_div;
+ *frac_fb_div_p = fb_div_frac;
+ *ref_div_p = ref_div;
+ *post_div_p = post_div;
- DRM_DEBUG("%u %d.%d, %d, %d\n", *dot_clock_p * 10, *fb_div_p, *frac_fb_div_p, *ref_div_p, *post_div_p);
+ DRM_DEBUG("%u %d.%d, %d, %d\n", *dot_clock_p, *fb_div_p, *frac_fb_div_p, *ref_div_p, *post_div_p);
+}
+
+void radeon_compute_pll(struct radeon_pll *pll,
+ uint64_t freq,
+ uint32_t *dot_clock_p,
+ uint32_t *fb_div_p,
+ uint32_t *frac_fb_div_p,
+ uint32_t *ref_div_p,
+ uint32_t *post_div_p)
+{
+ switch (pll->algo) {
+ case PLL_ALGO_NEW:
+ radeon_compute_pll_new(pll, freq, dot_clock_p, fb_div_p,
+ frac_fb_div_p, ref_div_p, post_div_p);
+ break;
+ case PLL_ALGO_LEGACY:
+ default:
+ radeon_compute_pll_legacy(pll, freq, dot_clock_p, fb_div_p,
+ frac_fb_div_p, ref_div_p, post_div_p);
+ break;
+ }
}
static void radeon_user_framebuffer_destroy(struct drm_framebuffer *fb)
int radeon_modeset_init(struct radeon_device *rdev)
{
- int num_crtc = 2, i;
+ int i;
int ret;
drm_mode_config_init(rdev->ddev);
return ret;
}
+ /* check combios for a valid hardcoded EDID - Sun servers */
+ if (!rdev->is_atom_bios) {
+ /* check for hardcoded EDID in BIOS */
+ radeon_combios_check_hardcoded_edid(rdev);
+ }
+
if (rdev->flags & RADEON_SINGLE_CRTC)
- num_crtc = 1;
+ rdev->num_crtc = 1;
+ else {
+ if (ASIC_IS_DCE4(rdev))
+ rdev->num_crtc = 6;
+ else
+ rdev->num_crtc = 2;
+ }
/* allocate crtcs */
- for (i = 0; i < num_crtc; i++) {
+ for (i = 0; i < rdev->num_crtc; i++) {
radeon_crtc_init(rdev->ddev, i);
}
void radeon_modeset_fini(struct radeon_device *rdev)
{
+ kfree(rdev->mode_info.bios_hardcoded_edid);
+
if (rdev->mode_info.mode_config_initialized) {
radeon_hpd_fini(rdev);
drm_mode_config_cleanup(rdev->ddev);
projects / karo-tx-linux.git / blobdiff