diff options
author | David S. Miller <davem@davemloft.net> | 2010-03-15 23:23:54 (GMT) |
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committer | David S. Miller <davem@davemloft.net> | 2010-03-15 23:23:54 (GMT) |
commit | 4961e02f1999e1c3468c09b2669c94d7c3ae82a8 (patch) | |
tree | 44c15abb09d7ba5e17a9aba95ee246648b1c1a8a /drivers/gpu/drm/radeon/radeon_display.c | |
parent | d14a0ebda7d3daede1a99c01527affb9ceaa4c22 (diff) | |
parent | a3d3203e4bb40f253b1541e310dc0f9305be7c84 (diff) | |
download | linux-fsl-qoriq-4961e02f1999e1c3468c09b2669c94d7c3ae82a8.tar.xz |
Merge branch 'master' of /home/davem/src/GIT/linux-2.6/
Diffstat (limited to 'drivers/gpu/drm/radeon/radeon_display.c')
-rw-r--r-- | drivers/gpu/drm/radeon/radeon_display.c | 332 |
1 files changed, 237 insertions, 95 deletions
diff --git a/drivers/gpu/drm/radeon/radeon_display.c b/drivers/gpu/drm/radeon/radeon_display.c index 7e17a36..ba8d806 100644 --- a/drivers/gpu/drm/radeon/radeon_display.c +++ b/drivers/gpu/drm/radeon/radeon_display.c @@ -68,6 +68,36 @@ static void avivo_crtc_load_lut(struct drm_crtc *crtc) 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); @@ -100,7 +130,9 @@ void radeon_crtc_load_lut(struct drm_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); @@ -361,6 +393,8 @@ static bool radeon_setup_enc_conn(struct drm_device *dev) 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) || @@ -373,11 +407,11 @@ int radeon_ddc_get_modes(struct radeon_connector *radeon_connector) 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); @@ -395,9 +429,7 @@ static int radeon_ddc_dump(struct drm_connector *connector) 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); } @@ -414,13 +446,13 @@ static inline uint32_t radeon_div(uint64_t n, uint32_t d) 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; @@ -580,95 +612,194 @@ void radeon_compute_pll(struct radeon_pll *pll, *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) @@ -679,11 +810,8 @@ static void radeon_user_framebuffer_destroy(struct drm_framebuffer *fb) if (fb->fbdev) radeonfb_remove(dev, fb); - if (radeon_fb->obj) { - mutex_lock(&dev->struct_mutex); - drm_gem_object_unreference(radeon_fb->obj); - mutex_unlock(&dev->struct_mutex); - } + if (radeon_fb->obj) + drm_gem_object_unreference_unlocked(radeon_fb->obj); drm_framebuffer_cleanup(fb); kfree(radeon_fb); } @@ -819,7 +947,7 @@ static int radeon_modeset_create_props(struct radeon_device *rdev) int radeon_modeset_init(struct radeon_device *rdev) { - int num_crtc = 2, i; + int i; int ret; drm_mode_config_init(rdev->ddev); @@ -842,11 +970,23 @@ int radeon_modeset_init(struct radeon_device *rdev) 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); } @@ -863,6 +1003,8 @@ int radeon_modeset_init(struct radeon_device *rdev) 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); |