diff options
Diffstat (limited to 'linux-core/radeon_legacy_crtc.c')
| -rw-r--r-- | linux-core/radeon_legacy_crtc.c | 1020 |
1 files changed, 1020 insertions, 0 deletions
diff --git a/linux-core/radeon_legacy_crtc.c b/linux-core/radeon_legacy_crtc.c new file mode 100644 index 00000000..6775ffc0 --- /dev/null +++ b/linux-core/radeon_legacy_crtc.c @@ -0,0 +1,1020 @@ +/* + * Copyright 2007-8 Advanced Micro Devices, Inc. + * Copyright 2008 Red Hat Inc. + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the "Software"), + * to deal in the Software without restriction, including without limitation + * the rights to use, copy, modify, merge, publish, distribute, sublicense, + * and/or sell copies of the Software, and to permit persons to whom the + * Software is furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included in + * all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL + * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR + * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, + * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR + * OTHER DEALINGS IN THE SOFTWARE. + * + * Authors: Dave Airlie + * Alex Deucher + */ +#include "drmP.h" +#include "radeon_drm.h" +#include "radeon_drv.h" + +#include "drm_crtc_helper.h" + +void radeon_restore_common_regs(struct drm_device *dev, struct radeon_legacy_state *state) +{ + /* don't need this yet */ +} + +static void radeon_pll_wait_for_read_update_complete(struct drm_device *dev) +{ + struct drm_radeon_private *dev_priv = dev->dev_private; + int i = 0; + + /* FIXME: Certain revisions of R300 can't recover here. Not sure of + the cause yet, but this workaround will mask the problem for now. + Other chips usually will pass at the very first test, so the + workaround shouldn't have any effect on them. */ + for (i = 0; + (i < 10000 && + RADEON_READ_PLL(dev_priv, RADEON_PPLL_REF_DIV) & RADEON_PPLL_ATOMIC_UPDATE_R); + i++); +} + +static void radeon_pll_write_update(struct drm_device *dev) +{ + struct drm_radeon_private *dev_priv = dev->dev_private; + + while (RADEON_READ_PLL(dev_priv, RADEON_PPLL_REF_DIV) & RADEON_PPLL_ATOMIC_UPDATE_R); + + RADEON_WRITE_PLL_P(dev_priv, RADEON_PPLL_REF_DIV, + RADEON_PPLL_ATOMIC_UPDATE_W, + ~(RADEON_PPLL_ATOMIC_UPDATE_W)); +} + +static void radeon_pll2_wait_for_read_update_complete(struct drm_device *dev) +{ + struct drm_radeon_private *dev_priv = dev->dev_private; + int i = 0; + + + /* FIXME: Certain revisions of R300 can't recover here. Not sure of + the cause yet, but this workaround will mask the problem for now. + Other chips usually will pass at the very first test, so the + workaround shouldn't have any effect on them. */ + for (i = 0; + (i < 10000 && + RADEON_READ_PLL(dev_priv, RADEON_P2PLL_REF_DIV) & RADEON_P2PLL_ATOMIC_UPDATE_R); + i++); +} + +static void radeon_pll2_write_update(struct drm_device *dev) +{ + struct drm_radeon_private *dev_priv = dev->dev_private; + + while (RADEON_READ_PLL(dev_priv, RADEON_P2PLL_REF_DIV) & RADEON_P2PLL_ATOMIC_UPDATE_R); + + RADEON_WRITE_PLL_P(dev_priv, RADEON_P2PLL_REF_DIV, + RADEON_P2PLL_ATOMIC_UPDATE_W, + ~(RADEON_P2PLL_ATOMIC_UPDATE_W)); +} + +static uint8_t radeon_compute_pll_gain(uint16_t ref_freq, uint16_t ref_div, + uint16_t fb_div) +{ + unsigned int vcoFreq; + + if (!ref_div) + return 1; + + vcoFreq = ((unsigned)ref_freq & fb_div) / ref_div; + + /* + * This is horribly crude: the VCO frequency range is divided into + * 3 parts, each part having a fixed PLL gain value. + */ + if (vcoFreq >= 30000) + /* + * [300..max] MHz : 7 + */ + return 7; + else if (vcoFreq >= 18000) + /* + * [180..300) MHz : 4 + */ + return 4; + else + /* + * [0..180) MHz : 1 + */ + return 1; +} + +void radeon_crtc_dpms(struct drm_crtc *crtc, int mode) +{ + struct radeon_crtc *radeon_crtc = to_radeon_crtc(crtc); + struct drm_device *dev = crtc->dev; + struct drm_radeon_private *dev_priv = dev->dev_private; + uint32_t mask; + + DRM_DEBUG("\n"); + + mask = radeon_crtc->crtc_id ? + (RADEON_CRTC2_DISP_DIS | RADEON_CRTC2_VSYNC_DIS | RADEON_CRTC2_HSYNC_DIS | RADEON_CRTC2_DISP_REQ_EN_B) : + (RADEON_CRTC_DISPLAY_DIS | RADEON_CRTC_VSYNC_DIS | RADEON_CRTC_HSYNC_DIS); + + switch(mode) { + case DRM_MODE_DPMS_ON: + if (radeon_crtc->crtc_id) + RADEON_WRITE_P(RADEON_CRTC2_GEN_CNTL, 0, ~mask); + else { + RADEON_WRITE_P(RADEON_CRTC_GEN_CNTL, 0, ~RADEON_CRTC_DISP_REQ_EN_B); + RADEON_WRITE_P(RADEON_CRTC_EXT_CNTL, 0, ~mask); + } + break; + case DRM_MODE_DPMS_STANDBY: + if (radeon_crtc->crtc_id) + RADEON_WRITE_P(RADEON_CRTC2_GEN_CNTL, (RADEON_CRTC2_DISP_DIS | RADEON_CRTC2_HSYNC_DIS), ~mask); + else { + RADEON_WRITE_P(RADEON_CRTC_GEN_CNTL, 0, ~RADEON_CRTC_DISP_REQ_EN_B); + RADEON_WRITE_P(RADEON_CRTC_EXT_CNTL, (RADEON_CRTC_DISPLAY_DIS | RADEON_CRTC_HSYNC_DIS), ~mask); + } + break; + case DRM_MODE_DPMS_SUSPEND: + if (radeon_crtc->crtc_id) + RADEON_WRITE_P(RADEON_CRTC2_GEN_CNTL, (RADEON_CRTC2_DISP_DIS | RADEON_CRTC2_VSYNC_DIS), ~mask); + else { + RADEON_WRITE_P(RADEON_CRTC_GEN_CNTL, 0, ~RADEON_CRTC_DISP_REQ_EN_B); + RADEON_WRITE_P(RADEON_CRTC_EXT_CNTL, (RADEON_CRTC_DISPLAY_DIS | RADEON_CRTC_VSYNC_DIS), ~mask); + } + break; + case DRM_MODE_DPMS_OFF: + if (radeon_crtc->crtc_id) + RADEON_WRITE_P(RADEON_CRTC2_GEN_CNTL, mask, ~mask); + else { + RADEON_WRITE_P(RADEON_CRTC_GEN_CNTL, RADEON_CRTC_DISP_REQ_EN_B, ~RADEON_CRTC_DISP_REQ_EN_B); + RADEON_WRITE_P(RADEON_CRTC_EXT_CNTL, mask, ~mask); + } + break; + } + + if (mode != DRM_MODE_DPMS_OFF) { + radeon_crtc_load_lut(crtc); + } +} + +static bool radeon_set_crtc1_base(struct drm_crtc *crtc, int x, int y) +{ + struct drm_device *dev = crtc->dev; + struct drm_radeon_private *dev_priv = dev->dev_private; + struct radeon_framebuffer *radeon_fb; + struct drm_radeon_gem_object *obj_priv; + uint32_t base; + uint32_t crtc_offset, crtc_offset_cntl, crtc_tile_x0_y0 = 0; + uint32_t crtc_pitch; + + DRM_DEBUG("\n"); + + radeon_fb = to_radeon_framebuffer(crtc->fb); + + obj_priv = radeon_fb->obj->driver_private; + + crtc_offset = obj_priv->bo->offset; + + crtc_offset_cntl = 0; + + /* TODO tiling */ + if (0) { + if (radeon_is_r300(dev_priv)) + crtc_offset_cntl |= (R300_CRTC_X_Y_MODE_EN | + R300_CRTC_MICRO_TILE_BUFFER_DIS | + R300_CRTC_MACRO_TILE_EN); + else + crtc_offset_cntl |= RADEON_CRTC_TILE_EN; + } else { + if (radeon_is_r300(dev_priv)) + crtc_offset_cntl &= ~(R300_CRTC_X_Y_MODE_EN | + R300_CRTC_MICRO_TILE_BUFFER_DIS | + R300_CRTC_MACRO_TILE_EN); + else + crtc_offset_cntl &= ~RADEON_CRTC_TILE_EN; + } + + base = obj_priv->bo->offset; + + /* TODO more tiling */ + if (0) { + if (radeon_is_r300(dev_priv)) { + crtc_tile_x0_y0 = x | (y << 16); + base &= ~0x7ff; + } else { + int byteshift = crtc->fb->bits_per_pixel >> 4; + int tile_addr = (((y >> 3) * crtc->fb->width + x) >> (8 - byteshift)) << 11; + base += tile_addr + ((x << byteshift) % 256) + ((y % 8) << 8); + crtc_offset_cntl |= (y % 16); + } + } else { + int offset = y * crtc->fb->pitch + x; + switch (crtc->fb->bits_per_pixel) { + case 15: + case 16: + offset *= 2; + break; + case 24: + offset *= 3; + break; + case 32: + offset *= 4; + break; + default: + return false; + } + base += offset; + } + + base &= ~7; + + /* update sarea TODO */ + + crtc_offset = base; + + crtc_pitch = ((((crtc->fb->pitch / (crtc->fb->bits_per_pixel / 8)) * crtc->fb->bits_per_pixel) + + ((crtc->fb->bits_per_pixel * 8) - 1)) / + (crtc->fb->bits_per_pixel * 8)); + crtc_pitch |= crtc_pitch << 16; + + DRM_DEBUG("mc_fb_location: 0x%x\n", dev_priv->fb_location); + + RADEON_WRITE(RADEON_DISPLAY_BASE_ADDR, dev_priv->fb_location); + + if (radeon_is_r300(dev_priv)) + RADEON_WRITE(R300_CRTC_TILE_X0_Y0, crtc_tile_x0_y0); + RADEON_WRITE(RADEON_CRTC_OFFSET_CNTL, crtc_offset_cntl); + RADEON_WRITE(RADEON_CRTC_OFFSET, crtc_offset); + RADEON_WRITE(RADEON_CRTC_PITCH, crtc_pitch); + + return true; +} + +static bool radeon_set_crtc1_timing(struct drm_crtc *crtc, struct drm_display_mode *mode) +{ + struct drm_device *dev = crtc->dev; + struct drm_radeon_private *dev_priv = dev->dev_private; + int format; + int hsync_start; + int hsync_wid; + int vsync_wid; + uint32_t crtc_gen_cntl; + uint32_t crtc_ext_cntl; + uint32_t crtc_h_total_disp; + uint32_t crtc_h_sync_strt_wid; + uint32_t crtc_v_total_disp; + uint32_t crtc_v_sync_strt_wid; + uint32_t disp_merge_cntl; + + DRM_DEBUG("\n"); + + switch (crtc->fb->bits_per_pixel) { + + case 15: /* 555 */ + format = 3; + break; + case 16: /* 565 */ + format = 4; + break; + case 24: /* RGB */ + format = 5; + break; + case 32: /* xRGB */ + format = 6; + break; + default: + return false; + } + + crtc_gen_cntl = (RADEON_CRTC_EXT_DISP_EN + | RADEON_CRTC_EN + | (format << 8) + | ((mode->flags & DRM_MODE_FLAG_DBLSCAN) + ? RADEON_CRTC_DBL_SCAN_EN + : 0) + | ((mode->flags & DRM_MODE_FLAG_CSYNC) + ? RADEON_CRTC_CSYNC_EN + : 0) + | ((mode->flags & DRM_MODE_FLAG_INTERLACE) + ? RADEON_CRTC_INTERLACE_EN + : 0)); + + crtc_ext_cntl = RADEON_READ(RADEON_CRTC_EXT_CNTL); + crtc_ext_cntl |= (RADEON_XCRT_CNT_EN | + RADEON_CRTC_VSYNC_DIS | + RADEON_CRTC_HSYNC_DIS | + RADEON_CRTC_DISPLAY_DIS); + + disp_merge_cntl = RADEON_READ(RADEON_DISP_MERGE_CNTL); + disp_merge_cntl &= ~RADEON_DISP_RGB_OFFSET_EN; + + crtc_h_total_disp = ((((mode->crtc_htotal / 8) - 1) & 0x3ff) + | ((((mode->crtc_hdisplay / 8) - 1) & 0x1ff) << 16)); + + hsync_wid = (mode->crtc_hsync_end - mode->crtc_hsync_start) / 8; + if (!hsync_wid) + hsync_wid = 1; + hsync_start = mode->crtc_hsync_start - 8; + + crtc_h_sync_strt_wid = ((hsync_start & 0x1fff) + | ((hsync_wid & 0x3f) << 16) + | ((mode->flags & DRM_MODE_FLAG_NHSYNC) + ? RADEON_CRTC_H_SYNC_POL + : 0)); + + /* This works for double scan mode. */ + crtc_v_total_disp = (((mode->crtc_vtotal - 1) & 0xffff) + | ((mode->crtc_vdisplay - 1) << 16)); + + vsync_wid = mode->crtc_vsync_end - mode->crtc_vsync_start; + if (!vsync_wid) + vsync_wid = 1; + + crtc_v_sync_strt_wid = (((mode->crtc_vsync_start - 1) & 0xfff) + | ((vsync_wid & 0x1f) << 16) + | ((mode->flags & DRM_MODE_FLAG_NVSYNC) + ? RADEON_CRTC_V_SYNC_POL + : 0)); + + /* TODO -> Dell Server */ + if (0) { + uint32_t disp_hw_debug = RADEON_READ(RADEON_DISP_HW_DEBUG); + uint32_t tv_dac_cntl = RADEON_READ(RADEON_TV_DAC_CNTL); + uint32_t dac2_cntl = RADEON_READ(RADEON_DAC_CNTL2); + uint32_t crtc2_gen_cntl = RADEON_READ(RADEON_CRTC2_GEN_CNTL); + + dac2_cntl &= ~RADEON_DAC2_DAC_CLK_SEL; + dac2_cntl |= RADEON_DAC2_DAC2_CLK_SEL; + + /* For CRT on DAC2, don't turn it on if BIOS didn't + enable it, even it's detected. + */ + disp_hw_debug |= RADEON_CRT2_DISP1_SEL; + tv_dac_cntl &= ~((1<<2) | (3<<8) | (7<<24) | (0xff<<16)); + tv_dac_cntl |= (0x03 | (2<<8) | (0x58<<16)); + + RADEON_WRITE(RADEON_TV_DAC_CNTL, tv_dac_cntl); + RADEON_WRITE(RADEON_DISP_HW_DEBUG, disp_hw_debug); + RADEON_WRITE(RADEON_DAC_CNTL2, dac2_cntl); + RADEON_WRITE(RADEON_CRTC2_GEN_CNTL, crtc2_gen_cntl); + } + + RADEON_WRITE(RADEON_CRTC_GEN_CNTL, crtc_gen_cntl | + RADEON_CRTC_DISP_REQ_EN_B); + + RADEON_WRITE_P(RADEON_CRTC_EXT_CNTL, crtc_ext_cntl, + RADEON_CRTC_VSYNC_DIS | RADEON_CRTC_HSYNC_DIS | RADEON_CRTC_DISPLAY_DIS); + + RADEON_WRITE(RADEON_CRTC_H_TOTAL_DISP, crtc_h_total_disp); + RADEON_WRITE(RADEON_CRTC_H_SYNC_STRT_WID, crtc_h_sync_strt_wid); + RADEON_WRITE(RADEON_CRTC_V_TOTAL_DISP, crtc_v_total_disp); + RADEON_WRITE(RADEON_CRTC_V_SYNC_STRT_WID, crtc_v_sync_strt_wid); + + RADEON_WRITE(RADEON_DISP_MERGE_CNTL, disp_merge_cntl); + + RADEON_WRITE(RADEON_CRTC_GEN_CNTL, crtc_gen_cntl); + + return true; +} + +static void radeon_set_pll1(struct drm_crtc *crtc, struct drm_display_mode *mode) +{ + struct drm_device *dev = crtc->dev; + struct drm_radeon_private *dev_priv = dev->dev_private; + struct drm_encoder *encoder; + uint32_t feedback_div = 0; + uint32_t reference_div = 0; + uint32_t post_divider = 0; + uint32_t freq = 0; + uint8_t pll_gain; + int pll_flags = RADEON_PLL_LEGACY | RADEON_PLL_PREFER_LOW_REF_DIV; + bool use_bios_divs = false; + /* PLL registers */ + uint32_t ppll_ref_div = 0; + uint32_t ppll_div_3 = 0; + uint32_t htotal_cntl = 0; + uint32_t vclk_ecp_cntl; + + struct radeon_pll *pll = &dev_priv->mode_info.pll; + + struct { + int divider; + int bitvalue; + } *post_div, post_divs[] = { + /* From RAGE 128 VR/RAGE 128 GL Register + * Reference Manual (Technical Reference + * Manual P/N RRG-G04100-C Rev. 0.04), page + * 3-17 (PLL_DIV_[3:0]). + */ + { 1, 0 }, /* VCLK_SRC */ + { 2, 1 }, /* VCLK_SRC/2 */ + { 4, 2 }, /* VCLK_SRC/4 */ + { 8, 3 }, /* VCLK_SRC/8 */ + { 3, 4 }, /* VCLK_SRC/3 */ + { 16, 5 }, /* VCLK_SRC/16 */ + { 6, 6 }, /* VCLK_SRC/6 */ + { 12, 7 }, /* VCLK_SRC/12 */ + { 0, 0 } + }; + + list_for_each_entry(encoder, &dev->mode_config.encoder_list, head) { + if (encoder->crtc == crtc) { + if (encoder->encoder_type != DRM_MODE_ENCODER_DAC) + pll_flags |= RADEON_PLL_NO_ODD_POST_DIV; + if (encoder->encoder_type == DRM_MODE_ENCODER_LVDS) { + struct radeon_encoder *radeon_encoder = to_radeon_encoder(encoder); + + if (radeon_encoder->use_bios_dividers) { + ppll_ref_div = radeon_encoder->panel_ref_divider; + ppll_div_3 = (radeon_encoder->panel_fb_divider | + (radeon_encoder->panel_post_divider << 16)); + htotal_cntl = 0; + use_bios_divs = true; + } else + pll_flags |= RADEON_PLL_USE_REF_DIV; + } + } + } + + DRM_DEBUG("\n"); + + if (!use_bios_divs) { + radeon_compute_pll(pll, mode->clock, &freq, &feedback_div, &reference_div, &post_divider, pll_flags); + + for (post_div = &post_divs[0]; post_div->divider; ++post_div) { + if (post_div->divider == post_divider) + break; + } + + if (!post_div->divider) { + post_div = &post_divs[0]; + } + + DRM_DEBUG("dc=%u, fd=%d, rd=%d, pd=%d\n", + (unsigned)freq, + feedback_div, + reference_div, + post_divider); + + ppll_ref_div = reference_div; +#if defined(__powerpc__) && (0) /* TODO */ + /* apparently programming this otherwise causes a hang??? */ + if (info->MacModel == RADEON_MAC_IBOOK) + state->ppll_div_3 = 0x000600ad; + else +#endif + ppll_div_3 = (feedback_div | (post_div->bitvalue << 16)); + htotal_cntl = mode->htotal & 0x7; + + } + + vclk_ecp_cntl = (RADEON_READ_PLL(dev_priv, RADEON_VCLK_ECP_CNTL) & + ~RADEON_VCLK_SRC_SEL_MASK) | RADEON_VCLK_SRC_SEL_PPLLCLK; + + pll_gain = radeon_compute_pll_gain(dev_priv->mode_info.pll.reference_freq, + ppll_ref_div & RADEON_PPLL_REF_DIV_MASK, + ppll_div_3 & RADEON_PPLL_FB3_DIV_MASK); + + if (dev_priv->flags & RADEON_IS_MOBILITY) { + /* A temporal workaround for the occational blanking on certain laptop panels. + This appears to related to the PLL divider registers (fail to lock?). + It occurs even when all dividers are the same with their old settings. + In this case we really don't need to fiddle with PLL registers. + By doing this we can avoid the blanking problem with some panels. + */ + if ((ppll_ref_div == (RADEON_READ_PLL(dev_priv, RADEON_PPLL_REF_DIV) & RADEON_PPLL_REF_DIV_MASK)) && + (ppll_div_3 == (RADEON_READ_PLL(dev_priv, RADEON_PPLL_DIV_3) & + (RADEON_PPLL_POST3_DIV_MASK | RADEON_PPLL_FB3_DIV_MASK)))) { + RADEON_WRITE_P(RADEON_CLOCK_CNTL_INDEX, + RADEON_PLL_DIV_SEL, + ~(RADEON_PLL_DIV_SEL)); + radeon_pll_errata_after_index(dev_priv); + return; + } + } + + RADEON_WRITE_PLL_P(dev_priv, RADEON_VCLK_ECP_CNTL, + RADEON_VCLK_SRC_SEL_CPUCLK, + ~(RADEON_VCLK_SRC_SEL_MASK)); + RADEON_WRITE_PLL_P(dev_priv, + RADEON_PPLL_CNTL, + RADEON_PPLL_RESET + | RADEON_PPLL_ATOMIC_UPDATE_EN + | RADEON_PPLL_VGA_ATOMIC_UPDATE_EN + | ((uint32_t)pll_gain << RADEON_PPLL_PVG_SHIFT), + ~(RADEON_PPLL_RESET + | RADEON_PPLL_ATOMIC_UPDATE_EN + | RADEON_PPLL_VGA_ATOMIC_UPDATE_EN + | RADEON_PPLL_PVG_MASK)); + + RADEON_WRITE_P(RADEON_CLOCK_CNTL_INDEX, + RADEON_PLL_DIV_SEL, + ~(RADEON_PLL_DIV_SEL)); + radeon_pll_errata_after_index(dev_priv); + + if (radeon_is_r300(dev_priv) || + (dev_priv->chip_family == CHIP_RS300) || + (dev_priv->chip_family == CHIP_RS400) || + (dev_priv->chip_family == CHIP_RS480)) { + if (ppll_ref_div & R300_PPLL_REF_DIV_ACC_MASK) { + /* When restoring console mode, use saved PPLL_REF_DIV + * setting. + */ + RADEON_WRITE_PLL_P(dev_priv, RADEON_PPLL_REF_DIV, + ppll_ref_div, + 0); + } else { + /* R300 uses ref_div_acc field as real ref divider */ + RADEON_WRITE_PLL_P(dev_priv, RADEON_PPLL_REF_DIV, + (ppll_ref_div << R300_PPLL_REF_DIV_ACC_SHIFT), + ~R300_PPLL_REF_DIV_ACC_MASK); + } + } else { + RADEON_WRITE_PLL_P(dev_priv, RADEON_PPLL_REF_DIV, + ppll_ref_div, + ~RADEON_PPLL_REF_DIV_MASK); + } + + RADEON_WRITE_PLL_P(dev_priv, RADEON_PPLL_DIV_3, + ppll_div_3, + ~RADEON_PPLL_FB3_DIV_MASK); + + RADEON_WRITE_PLL_P(dev_priv, RADEON_PPLL_DIV_3, + ppll_div_3, + ~RADEON_PPLL_POST3_DIV_MASK); + + radeon_pll_write_update(dev); + radeon_pll_wait_for_read_update_complete(dev); + + RADEON_WRITE_PLL(dev_priv, RADEON_HTOTAL_CNTL, htotal_cntl); + + RADEON_WRITE_PLL_P(dev_priv, RADEON_PPLL_CNTL, + 0, + ~(RADEON_PPLL_RESET + | RADEON_PPLL_SLEEP + | RADEON_PPLL_ATOMIC_UPDATE_EN + | RADEON_PPLL_VGA_ATOMIC_UPDATE_EN)); + + DRM_DEBUG("Wrote: 0x%08x 0x%08x 0x%08x (0x%08x)\n", + ppll_ref_div, + ppll_div_3, + (unsigned)htotal_cntl, + RADEON_READ_PLL(dev_priv, RADEON_PPLL_CNTL)); + DRM_DEBUG("Wrote: rd=%d, fd=%d, pd=%d\n", + ppll_ref_div & RADEON_PPLL_REF_DIV_MASK, + ppll_div_3 & RADEON_PPLL_FB3_DIV_MASK, + (ppll_div_3 & RADEON_PPLL_POST3_DIV_MASK) >> 16); + + mdelay(50); /* Let the clock to lock */ + + RADEON_WRITE_PLL_P(dev_priv, RADEON_VCLK_ECP_CNTL, + RADEON_VCLK_SRC_SEL_PPLLCLK, + ~(RADEON_VCLK_SRC_SEL_MASK)); + + /*RADEON_WRITE_PLL(dev_priv, RADEON_VCLK_ECP_CNTL, vclk_ecp_cntl);*/ + +} + +static bool radeon_set_crtc2_base(struct drm_crtc *crtc, int x, int y) +{ + struct drm_device *dev = crtc->dev; + struct drm_radeon_private *dev_priv = dev->dev_private; + struct radeon_framebuffer *radeon_fb; + struct drm_radeon_gem_object *obj_priv; + uint32_t base; + uint32_t crtc2_offset, crtc2_offset_cntl, crtc2_tile_x0_y0 = 0; + uint32_t crtc2_pitch; + + DRM_DEBUG("\n"); + + radeon_fb = to_radeon_framebuffer(crtc->fb); + + obj_priv = radeon_fb->obj->driver_private; + + crtc2_offset = obj_priv->bo->offset; + + crtc2_offset_cntl = 0; + + /* TODO tiling */ + if (0) { + if (radeon_is_r300(dev_priv)) + crtc2_offset_cntl |= (R300_CRTC_X_Y_MODE_EN | + R300_CRTC_MICRO_TILE_BUFFER_DIS | + R300_CRTC_MACRO_TILE_EN); + else + crtc2_offset_cntl |= RADEON_CRTC_TILE_EN; + } else { + if (radeon_is_r300(dev_priv)) + crtc2_offset_cntl &= ~(R300_CRTC_X_Y_MODE_EN | + R300_CRTC_MICRO_TILE_BUFFER_DIS | + R300_CRTC_MACRO_TILE_EN); + else + crtc2_offset_cntl &= ~RADEON_CRTC_TILE_EN; + } + + base = obj_priv->bo->offset; + + /* TODO more tiling */ + if (0) { + if (radeon_is_r300(dev_priv)) { + crtc2_tile_x0_y0 = x | (y << 16); + base &= ~0x7ff; + } else { + int byteshift = crtc->fb->bits_per_pixel >> 4; + int tile_addr = (((y >> 3) * crtc->fb->width + x) >> (8 - byteshift)) << 11; + base += tile_addr + ((x << byteshift) % 256) + ((y % 8) << 8); + crtc2_offset_cntl |= (y % 16); + } + } else { + int offset = y * crtc->fb->pitch + x; + switch (crtc->fb->bits_per_pixel) { + case 15: + case 16: + offset *= 2; + break; + case 24: + offset *= 3; + break; + case 32: + offset *= 4; + break; + default: + return false; + } + base += offset; + } + + base &= ~7; + + /* update sarea TODO */ + + crtc2_offset = base; + + crtc2_pitch = ((((crtc->fb->pitch / (crtc->fb->bits_per_pixel / 8)) * crtc->fb->bits_per_pixel) + + ((crtc->fb->bits_per_pixel * 8) - 1)) / + (crtc->fb->bits_per_pixel * 8)); + crtc2_pitch |= crtc2_pitch << 16; + + RADEON_WRITE(RADEON_DISPLAY2_BASE_ADDR, dev_priv->fb_location); + + if (radeon_is_r300(dev_priv)) + RADEON_WRITE(R300_CRTC2_TILE_X0_Y0, crtc2_tile_x0_y0); + RADEON_WRITE(RADEON_CRTC2_OFFSET_CNTL, crtc2_offset_cntl); + RADEON_WRITE(RADEON_CRTC2_OFFSET, crtc2_offset); + RADEON_WRITE(RADEON_CRTC2_PITCH, crtc2_pitch); + + return true; +} + +static bool radeon_set_crtc2_timing(struct drm_crtc *crtc, struct drm_display_mode *mode) +{ + struct drm_device *dev = crtc->dev; + struct drm_radeon_private *dev_priv = dev->dev_private; + int format; + int hsync_start; + int hsync_wid; + int vsync_wid; + uint32_t crtc2_gen_cntl; + uint32_t crtc2_h_total_disp; + uint32_t crtc2_h_sync_strt_wid; + uint32_t crtc2_v_total_disp; + uint32_t crtc2_v_sync_strt_wid; + uint32_t disp2_merge_cntl; + uint32_t fp_h2_sync_strt_wid; + uint32_t fp_v2_sync_strt_wid; + + DRM_DEBUG("\n"); + + switch (crtc->fb->bits_per_pixel) { + + case 15: /* 555 */ + format = 3; + break; + case 16: /* 565 */ + format = 4; + break; + case 24: /* RGB */ + format = 5; + break; + case 32: /* xRGB */ + format = 6; + break; + default: + return false; + } + + crtc2_h_total_disp = + ((((mode->crtc_htotal / 8) - 1) & 0x3ff) + | ((((mode->crtc_hdisplay / 8) - 1) & 0x1ff) << 16)); + + hsync_wid = (mode->crtc_hsync_end - mode->crtc_hsync_start) / 8; + if (!hsync_wid) + hsync_wid = 1; + hsync_start = mode->crtc_hsync_start - 8; + + crtc2_h_sync_strt_wid = ((hsync_start & 0x1fff) + | ((hsync_wid & 0x3f) << 16) + | ((mode->flags & DRM_MODE_FLAG_NHSYNC) + ? RADEON_CRTC_H_SYNC_POL + : 0)); + + /* This works for double scan mode. */ + crtc2_v_total_disp = (((mode->crtc_vtotal - 1) & 0xffff) + | ((mode->crtc_vdisplay - 1) << 16)); + + vsync_wid = mode->crtc_vsync_end - mode->crtc_vsync_start; + if (!vsync_wid) + vsync_wid = 1; + + crtc2_v_sync_strt_wid = (((mode->crtc_vsync_start - 1) & 0xfff) + | ((vsync_wid & 0x1f) << 16) + | ((mode->flags & DRM_MODE_FLAG_NVSYNC) + ? RADEON_CRTC2_V_SYNC_POL + : 0)); + + /* check to see if TV DAC is enabled for another crtc and keep it enabled */ + if (RADEON_READ(RADEON_CRTC2_GEN_CNTL) & RADEON_CRTC2_CRT2_ON) + crtc2_gen_cntl = RADEON_CRTC2_CRT2_ON; + else + crtc2_gen_cntl = 0; + + crtc2_gen_cntl |= (RADEON_CRTC2_EN + | (format << 8) + | RADEON_CRTC2_VSYNC_DIS + | RADEON_CRTC2_HSYNC_DIS + | RADEON_CRTC2_DISP_DIS + | ((mode->flags & DRM_MODE_FLAG_DBLSCAN) + ? RADEON_CRTC2_DBL_SCAN_EN + : 0) + | ((mode->flags & DRM_MODE_FLAG_CSYNC) + ? RADEON_CRTC2_CSYNC_EN + : 0) + | ((mode->flags & DRM_MODE_FLAG_INTERLACE) + ? RADEON_CRTC2_INTERLACE_EN + : 0)); + + disp2_merge_cntl = RADEON_READ(RADEON_DISP2_MERGE_CNTL); + disp2_merge_cntl &= ~RADEON_DISP2_RGB_OFFSET_EN; + + fp_h2_sync_strt_wid = crtc2_h_sync_strt_wid; + fp_v2_sync_strt_wid = crtc2_v_sync_strt_wid; + + RADEON_WRITE(RADEON_CRTC2_GEN_CNTL, + crtc2_gen_cntl | RADEON_CRTC2_VSYNC_DIS | + RADEON_CRTC2_HSYNC_DIS | RADEON_CRTC2_DISP_DIS | + RADEON_CRTC2_DISP_REQ_EN_B); + + RADEON_WRITE(RADEON_CRTC2_H_TOTAL_DISP, crtc2_h_total_disp); + RADEON_WRITE(RADEON_CRTC2_H_SYNC_STRT_WID, crtc2_h_sync_strt_wid); + RADEON_WRITE(RADEON_CRTC2_V_TOTAL_DISP, crtc2_v_total_disp); + RADEON_WRITE(RADEON_CRTC2_V_SYNC_STRT_WID, crtc2_v_sync_strt_wid); + + RADEON_WRITE(RADEON_FP_H2_SYNC_STRT_WID, fp_h2_sync_strt_wid); + RADEON_WRITE(RADEON_FP_V2_SYNC_STRT_WID, fp_v2_sync_strt_wid); + + RADEON_WRITE(RADEON_DISP2_MERGE_CNTL, disp2_merge_cntl); + + RADEON_WRITE(RADEON_CRTC2_GEN_CNTL, crtc2_gen_cntl); + + return true; + +} + +static void radeon_set_pll2(struct drm_crtc *crtc, struct drm_display_mode *mode) +{ + struct drm_device *dev = crtc->dev; + struct drm_radeon_private *dev_priv = dev->dev_private; + struct drm_encoder *encoder; + uint32_t feedback_div = 0; + uint32_t reference_div = 0; + uint32_t post_divider = 0; + uint32_t freq = 0; + uint8_t pll_gain; + int pll_flags = RADEON_PLL_LEGACY | RADEON_PLL_PREFER_LOW_REF_DIV; + bool use_bios_divs = false; + /* PLL2 registers */ + uint32_t p2pll_ref_div = 0; + uint32_t p2pll_div_0 = 0; + uint32_t htotal_cntl2 = 0; + uint32_t pixclks_cntl; + + struct radeon_pll *pll = &dev_priv->mode_info.pll; + + struct { + int divider; + int bitvalue; + } *post_div, post_divs[] = { + /* From RAGE 128 VR/RAGE 128 GL Register + * Reference Manual (Technical Reference + * Manual P/N RRG-G04100-C Rev. 0.04), page + * 3-17 (PLL_DIV_[3:0]). + */ + { 1, 0 }, /* VCLK_SRC */ + { 2, 1 }, /* VCLK_SRC/2 */ + { 4, 2 }, /* VCLK_SRC/4 */ + { 8, 3 }, /* VCLK_SRC/8 */ + { 3, 4 }, /* VCLK_SRC/3 */ + { 6, 6 }, /* VCLK_SRC/6 */ + { 12, 7 }, /* VCLK_SRC/12 */ + { 0, 0 } + }; + + list_for_each_entry(encoder, &dev->mode_config.encoder_list, head) { + if (encoder->crtc == crtc) { + if (encoder->encoder_type != DRM_MODE_ENCODER_DAC) + pll_flags |= RADEON_PLL_NO_ODD_POST_DIV; + if (encoder->encoder_type == DRM_MODE_ENCODER_LVDS) { + struct radeon_encoder *radeon_encoder = to_radeon_encoder(encoder); + + if (radeon_encoder->use_bios_dividers) { + p2pll_ref_div = radeon_encoder->panel_ref_divider; + p2pll_div_0 = (radeon_encoder->panel_fb_divider | + (radeon_encoder->panel_post_divider << 16)); + htotal_cntl2 = 0; + use_bios_divs = true; + } else + pll_flags |= RADEON_PLL_USE_REF_DIV; + } + } + } + + DRM_DEBUG("\n"); + + if (!use_bios_divs) { + radeon_compute_pll(pll, mode->clock, &freq, &feedback_div, &reference_div, &post_divider, pll_flags); + + for (post_div = &post_divs[0]; post_div->divider; ++post_div) { + if (post_div->divider == post_divider) + break; + } + + if (!post_div->divider) { + post_div = &post_divs[0]; + } + + DRM_DEBUG("dc=%u, fd=%d, rd=%d, pd=%d\n", + (unsigned)freq, + feedback_div, + reference_div, + post_divider); + + p2pll_ref_div = reference_div; + p2pll_div_0 = (feedback_div | (post_div->bitvalue << 16)); + htotal_cntl2 = mode->htotal & 0x7; + + } + + pixclks_cntl = ((RADEON_READ_PLL(dev_priv, RADEON_PIXCLKS_CNTL) & + ~(RADEON_PIX2CLK_SRC_SEL_MASK)) | + RADEON_PIX2CLK_SRC_SEL_P2PLLCLK); + + pll_gain = radeon_compute_pll_gain(dev_priv->mode_info.pll.reference_freq, + p2pll_ref_div & RADEON_P2PLL_REF_DIV_MASK, + p2pll_div_0 & RADEON_P2PLL_FB0_DIV_MASK); + + + RADEON_WRITE_PLL_P(dev_priv, RADEON_PIXCLKS_CNTL, + RADEON_PIX2CLK_SRC_SEL_CPUCLK, + ~(RADEON_PIX2CLK_SRC_SEL_MASK)); + + RADEON_WRITE_PLL_P(dev_priv, + RADEON_P2PLL_CNTL, + RADEON_P2PLL_RESET + | RADEON_P2PLL_ATOMIC_UPDATE_EN + | ((uint32_t)pll_gain << RADEON_P2PLL_PVG_SHIFT), + ~(RADEON_P2PLL_RESET + | RADEON_P2PLL_ATOMIC_UPDATE_EN + | RADEON_P2PLL_PVG_MASK)); + + + RADEON_WRITE_PLL_P(dev_priv, RADEON_P2PLL_REF_DIV, + p2pll_ref_div, + ~RADEON_P2PLL_REF_DIV_MASK); + + RADEON_WRITE_PLL_P(dev_priv, RADEON_P2PLL_DIV_0, + p2pll_div_0, + ~RADEON_P2PLL_FB0_DIV_MASK); + + RADEON_WRITE_PLL_P(dev_priv, RADEON_P2PLL_DIV_0, + p2pll_div_0, + ~RADEON_P2PLL_POST0_DIV_MASK); + + radeon_pll2_write_update(dev); + radeon_pll2_wait_for_read_update_complete(dev); + + RADEON_WRITE_PLL(dev_priv, RADEON_HTOTAL2_CNTL, htotal_cntl2); + + RADEON_WRITE_PLL_P(dev_priv, RADEON_P2PLL_CNTL, + 0, + ~(RADEON_P2PLL_RESET + | RADEON_P2PLL_SLEEP + | RADEON_P2PLL_ATOMIC_UPDATE_EN)); + + DRM_DEBUG("Wrote2: 0x%08x 0x%08x 0x%08x (0x%08x)\n", + (unsigned)p2pll_ref_div, + (unsigned)p2pll_div_0, + (unsigned)htotal_cntl2, + RADEON_READ_PLL(dev_priv, RADEON_P2PLL_CNTL)); + DRM_DEBUG("Wrote2: rd=%u, fd=%u, pd=%u\n", + (unsigned)p2pll_ref_div & RADEON_P2PLL_REF_DIV_MASK, + (unsigned)p2pll_div_0 & RADEON_P2PLL_FB0_DIV_MASK, + (unsigned)((p2pll_div_0 & + RADEON_P2PLL_POST0_DIV_MASK) >>16)); + + mdelay(50); /* Let the clock to lock */ + + RADEON_WRITE_PLL_P(dev_priv, RADEON_PIXCLKS_CNTL, + RADEON_PIX2CLK_SRC_SEL_P2PLLCLK, + ~(RADEON_PIX2CLK_SRC_SEL_MASK)); + + RADEON_WRITE_PLL(dev_priv, RADEON_PIXCLKS_CNTL, pixclks_cntl); + +} + +static bool radeon_crtc_mode_fixup(struct drm_crtc *crtc, + struct drm_display_mode *mode, + struct drm_display_mode *adjusted_mode) +{ + return true; +} + +void radeon_crtc_set_base(struct drm_crtc *crtc, int x, int y) +{ + struct radeon_crtc *radeon_crtc = to_radeon_crtc(crtc); + + switch(radeon_crtc->crtc_id) { + case 0: + radeon_set_crtc1_base(crtc, x, y); + break; + case 1: + radeon_set_crtc2_base(crtc, x, y); + break; + + } +} + +static void radeon_crtc_mode_set(struct drm_crtc *crtc, + struct drm_display_mode *mode, + struct drm_display_mode *adjusted_mode, + int x, int y) +{ + struct radeon_crtc *radeon_crtc = to_radeon_crtc(crtc); + + DRM_DEBUG("\n"); + + /* TODO TV */ + + radeon_crtc_set_base(crtc, x, y); + + switch(radeon_crtc->crtc_id) { + case 0: + radeon_set_crtc1_timing(crtc, adjusted_mode); + radeon_set_pll1(crtc, adjusted_mode); + break; + case 1: + radeon_set_crtc2_timing(crtc, adjusted_mode); + radeon_set_pll2(crtc, adjusted_mode); + break; + + } +} + +static void radeon_crtc_prepare(struct drm_crtc *crtc) +{ + radeon_crtc_dpms(crtc, DRM_MODE_DPMS_OFF); +} + +static void radeon_crtc_commit(struct drm_crtc *crtc) +{ + radeon_crtc_dpms(crtc, DRM_MODE_DPMS_ON); +} + +static const struct drm_crtc_helper_funcs legacy_helper_funcs = { + .dpms = radeon_crtc_dpms, + .mode_fixup = radeon_crtc_mode_fixup, + .mode_set = radeon_crtc_mode_set, + .mode_set_base = radeon_crtc_set_base, + .prepare = radeon_crtc_prepare, + .commit = radeon_crtc_commit, +}; + + +void radeon_legacy_init_crtc(struct drm_device *dev, + struct radeon_crtc *radeon_crtc) +{ + drm_crtc_helper_add(&radeon_crtc->base, &legacy_helper_funcs); +} |