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path: root/drivers/gpu/drm/radeon/radeon_legacy_crtc.c
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Diffstat (limited to 'drivers/gpu/drm/radeon/radeon_legacy_crtc.c')
-rw-r--r--drivers/gpu/drm/radeon/radeon_legacy_crtc.c200
1 files changed, 136 insertions, 64 deletions
diff --git a/drivers/gpu/drm/radeon/radeon_legacy_crtc.c b/drivers/gpu/drm/radeon/radeon_legacy_crtc.c
index b6d8081e124..cafb1ccf2ec 100644
--- a/drivers/gpu/drm/radeon/radeon_legacy_crtc.c
+++ b/drivers/gpu/drm/radeon/radeon_legacy_crtc.c
@@ -26,7 +26,7 @@
#include <drm/drmP.h>
#include <drm/drm_crtc_helper.h>
#include <drm/radeon_drm.h>
-#include "radeon_fixed.h"
+#include <drm/drm_fixed.h>
#include "radeon.h"
#include "atom.h"
@@ -206,11 +206,6 @@ static void radeon_legacy_rmx_mode_set(struct drm_crtc *crtc,
WREG32(RADEON_FP_CRTC_V_TOTAL_DISP, fp_crtc_v_total_disp);
}
-void radeon_restore_common_regs(struct drm_device *dev)
-{
- /* don't need this yet */
-}
-
static void radeon_pll_wait_for_read_update_complete(struct drm_device *dev)
{
struct radeon_device *rdev = dev->dev_private;
@@ -272,7 +267,7 @@ static uint8_t radeon_compute_pll_gain(uint16_t ref_freq, uint16_t ref_div,
if (!ref_div)
return 1;
- vcoFreq = ((unsigned)ref_freq & fb_div) / ref_div;
+ vcoFreq = ((unsigned)ref_freq * fb_div) / ref_div;
/*
* This is horribly crude: the VCO frequency range is divided into
@@ -295,11 +290,12 @@ static uint8_t radeon_compute_pll_gain(uint16_t ref_freq, uint16_t ref_div,
return 1;
}
-void radeon_crtc_dpms(struct drm_crtc *crtc, int mode)
+static 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 radeon_device *rdev = dev->dev_private;
+ uint32_t crtc_ext_cntl = 0;
uint32_t mask;
if (radeon_crtc->crtc_id)
@@ -312,14 +308,27 @@ void radeon_crtc_dpms(struct drm_crtc *crtc, int mode)
RADEON_CRTC_VSYNC_DIS |
RADEON_CRTC_HSYNC_DIS);
+ /*
+ * On all dual CRTC GPUs this bit controls the CRTC of the primary DAC.
+ * Therefore it is set in the DAC DMPS function.
+ * This is different for GPU's with a single CRTC but a primary and a
+ * TV DAC: here it controls the single CRTC no matter where it is
+ * routed. Therefore we set it here.
+ */
+ if (rdev->flags & RADEON_SINGLE_CRTC)
+ crtc_ext_cntl = RADEON_CRTC_CRT_ON;
+
switch (mode) {
case DRM_MODE_DPMS_ON:
+ radeon_crtc->enabled = true;
+ /* adjust pm to dpms changes BEFORE enabling crtcs */
+ radeon_pm_compute_clocks(rdev);
if (radeon_crtc->crtc_id)
WREG32_P(RADEON_CRTC2_GEN_CNTL, RADEON_CRTC2_EN, ~(RADEON_CRTC2_EN | mask));
else {
WREG32_P(RADEON_CRTC_GEN_CNTL, RADEON_CRTC_EN, ~(RADEON_CRTC_EN |
RADEON_CRTC_DISP_REQ_EN_B));
- WREG32_P(RADEON_CRTC_EXT_CNTL, 0, ~mask);
+ WREG32_P(RADEON_CRTC_EXT_CNTL, crtc_ext_cntl, ~(mask | crtc_ext_cntl));
}
drm_vblank_post_modeset(dev, radeon_crtc->crtc_id);
radeon_crtc_load_lut(crtc);
@@ -333,8 +342,11 @@ void radeon_crtc_dpms(struct drm_crtc *crtc, int mode)
else {
WREG32_P(RADEON_CRTC_GEN_CNTL, RADEON_CRTC_DISP_REQ_EN_B, ~(RADEON_CRTC_EN |
RADEON_CRTC_DISP_REQ_EN_B));
- WREG32_P(RADEON_CRTC_EXT_CNTL, mask, ~mask);
+ WREG32_P(RADEON_CRTC_EXT_CNTL, mask, ~(mask | crtc_ext_cntl));
}
+ radeon_crtc->enabled = false;
+ /* adjust pm to dpms changes AFTER disabling crtcs */
+ radeon_pm_compute_clocks(rdev);
break;
}
}
@@ -342,10 +354,25 @@ void radeon_crtc_dpms(struct drm_crtc *crtc, int mode)
int radeon_crtc_set_base(struct drm_crtc *crtc, int x, int y,
struct drm_framebuffer *old_fb)
{
+ return radeon_crtc_do_set_base(crtc, old_fb, x, y, 0);
+}
+
+int radeon_crtc_set_base_atomic(struct drm_crtc *crtc,
+ struct drm_framebuffer *fb,
+ int x, int y, enum mode_set_atomic state)
+{
+ return radeon_crtc_do_set_base(crtc, fb, x, y, 1);
+}
+
+int radeon_crtc_do_set_base(struct drm_crtc *crtc,
+ struct drm_framebuffer *fb,
+ int x, int y, int atomic)
+{
struct drm_device *dev = crtc->dev;
struct radeon_device *rdev = dev->dev_private;
struct radeon_crtc *radeon_crtc = to_radeon_crtc(crtc);
struct radeon_framebuffer *radeon_fb;
+ struct drm_framebuffer *target_fb;
struct drm_gem_object *obj;
struct radeon_bo *rbo;
uint64_t base;
@@ -356,16 +383,23 @@ int radeon_crtc_set_base(struct drm_crtc *crtc, int x, int y,
uint32_t gen_cntl_reg, gen_cntl_val;
int r;
- DRM_DEBUG("\n");
+ DRM_DEBUG_KMS("\n");
/* no fb bound */
- if (!crtc->fb) {
- DRM_DEBUG("No FB bound\n");
+ if (!atomic && !crtc->primary->fb) {
+ DRM_DEBUG_KMS("No FB bound\n");
return 0;
}
- radeon_fb = to_radeon_framebuffer(crtc->fb);
+ if (atomic) {
+ radeon_fb = to_radeon_framebuffer(fb);
+ target_fb = fb;
+ }
+ else {
+ radeon_fb = to_radeon_framebuffer(crtc->primary->fb);
+ target_fb = crtc->primary->fb;
+ }
- switch (crtc->fb->bits_per_pixel) {
+ switch (target_fb->bits_per_pixel) {
case 8:
format = 2;
break;
@@ -387,13 +421,43 @@ int radeon_crtc_set_base(struct drm_crtc *crtc, int x, int y,
/* Pin framebuffer & get tilling informations */
obj = radeon_fb->obj;
- rbo = obj->driver_private;
+ rbo = gem_to_radeon_bo(obj);
+retry:
r = radeon_bo_reserve(rbo, false);
if (unlikely(r != 0))
return r;
- r = radeon_bo_pin(rbo, RADEON_GEM_DOMAIN_VRAM, &base);
+ /* Only 27 bit offset for legacy CRTC */
+ r = radeon_bo_pin_restricted(rbo, RADEON_GEM_DOMAIN_VRAM, 1 << 27,
+ &base);
if (unlikely(r != 0)) {
radeon_bo_unreserve(rbo);
+
+ /* On old GPU like RN50 with little vram pining can fails because
+ * current fb is taking all space needed. So instead of unpining
+ * the old buffer after pining the new one, first unpin old one
+ * and then retry pining new one.
+ *
+ * As only master can set mode only master can pin and it is
+ * unlikely the master client will race with itself especialy
+ * on those old gpu with single crtc.
+ *
+ * We don't shutdown the display controller because new buffer
+ * will end up in same spot.
+ */
+ if (!atomic && fb && fb != crtc->primary->fb) {
+ struct radeon_bo *old_rbo;
+ unsigned long nsize, osize;
+
+ old_rbo = gem_to_radeon_bo(to_radeon_framebuffer(fb)->obj);
+ osize = radeon_bo_size(old_rbo);
+ nsize = radeon_bo_size(rbo);
+ if (nsize <= osize && !radeon_bo_reserve(old_rbo, false)) {
+ radeon_bo_unpin(old_rbo);
+ radeon_bo_unreserve(old_rbo);
+ fb = NULL;
+ goto retry;
+ }
+ }
return -EINVAL;
}
radeon_bo_get_tiling_flags(rbo, &tiling_flags, NULL);
@@ -403,19 +467,19 @@ int radeon_crtc_set_base(struct drm_crtc *crtc, int x, int y,
/* if scanout was in GTT this really wouldn't work */
/* crtc offset is from display base addr not FB location */
- radeon_crtc->legacy_display_base_addr = rdev->mc.vram_location;
+ radeon_crtc->legacy_display_base_addr = rdev->mc.vram_start;
base -= radeon_crtc->legacy_display_base_addr;
crtc_offset_cntl = 0;
- pitch_pixels = crtc->fb->pitch / (crtc->fb->bits_per_pixel / 8);
- crtc_pitch = (((pitch_pixels * crtc->fb->bits_per_pixel) +
- ((crtc->fb->bits_per_pixel * 8) - 1)) /
- (crtc->fb->bits_per_pixel * 8));
+ pitch_pixels = target_fb->pitches[0] / (target_fb->bits_per_pixel / 8);
+ crtc_pitch = (((pitch_pixels * target_fb->bits_per_pixel) +
+ ((target_fb->bits_per_pixel * 8) - 1)) /
+ (target_fb->bits_per_pixel * 8));
crtc_pitch |= crtc_pitch << 16;
-
+ crtc_offset_cntl |= RADEON_CRTC_GUI_TRIG_OFFSET_LEFT_EN;
if (tiling_flags & RADEON_TILING_MACRO) {
if (ASIC_IS_R300(rdev))
crtc_offset_cntl |= (R300_CRTC_X_Y_MODE_EN |
@@ -437,14 +501,14 @@ int radeon_crtc_set_base(struct drm_crtc *crtc, int x, int y,
crtc_tile_x0_y0 = x | (y << 16);
base &= ~0x7ff;
} else {
- int byteshift = crtc->fb->bits_per_pixel >> 4;
+ int byteshift = target_fb->bits_per_pixel >> 4;
int tile_addr = (((y >> 3) * pitch_pixels + x) >> (8 - byteshift)) << 11;
base += tile_addr + ((x << byteshift) % 256) + ((y % 8) << 8);
crtc_offset_cntl |= (y % 16);
}
} else {
int offset = y * pitch_pixels + x;
- switch (crtc->fb->bits_per_pixel) {
+ switch (target_fb->bits_per_pixel) {
case 8:
offset *= 1;
break;
@@ -474,6 +538,7 @@ int radeon_crtc_set_base(struct drm_crtc *crtc, int x, int y,
gen_cntl_val = RREG32(gen_cntl_reg);
gen_cntl_val &= ~(0xf << 8);
gen_cntl_val |= (format << 8);
+ gen_cntl_val &= ~RADEON_CRTC_VSTAT_MODE_MASK;
WREG32(gen_cntl_reg, gen_cntl_val);
crtc_offset = (u32)base;
@@ -490,9 +555,9 @@ int radeon_crtc_set_base(struct drm_crtc *crtc, int x, int y,
WREG32(RADEON_CRTC_OFFSET + radeon_crtc->crtc_offset, crtc_offset);
WREG32(RADEON_CRTC_PITCH + radeon_crtc->crtc_offset, crtc_pitch);
- if (old_fb && old_fb != crtc->fb) {
- radeon_fb = to_radeon_framebuffer(old_fb);
- rbo = radeon_fb->obj->driver_private;
+ if (!atomic && fb && fb != crtc->primary->fb) {
+ radeon_fb = to_radeon_framebuffer(fb);
+ rbo = gem_to_radeon_bo(radeon_fb->obj);
r = radeon_bo_reserve(rbo, false);
if (unlikely(r != 0))
return r;
@@ -522,7 +587,7 @@ static bool radeon_set_crtc_timing(struct drm_crtc *crtc, struct drm_display_mod
uint32_t crtc_v_sync_strt_wid;
bool is_tv = false;
- DRM_DEBUG("\n");
+ DRM_DEBUG_KMS("\n");
list_for_each_entry(encoder, &dev->mode_config.encoder_list, head) {
if (encoder->crtc == crtc) {
struct radeon_encoder *radeon_encoder = to_radeon_encoder(encoder);
@@ -534,7 +599,7 @@ static bool radeon_set_crtc_timing(struct drm_crtc *crtc, struct drm_display_mod
}
}
- switch (crtc->fb->bits_per_pixel) {
+ switch (crtc->primary->fb->bits_per_pixel) {
case 8:
format = 2;
break;
@@ -582,29 +647,6 @@ static bool radeon_set_crtc_timing(struct drm_crtc *crtc, struct drm_display_mod
? RADEON_CRTC_V_SYNC_POL
: 0));
- /* TODO -> Dell Server */
- if (0) {
- uint32_t disp_hw_debug = RREG32(RADEON_DISP_HW_DEBUG);
- uint32_t tv_dac_cntl = RREG32(RADEON_TV_DAC_CNTL);
- uint32_t dac2_cntl = RREG32(RADEON_DAC_CNTL2);
- uint32_t crtc2_gen_cntl = RREG32(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));
-
- WREG32(RADEON_TV_DAC_CNTL, tv_dac_cntl);
- WREG32(RADEON_DISP_HW_DEBUG, disp_hw_debug);
- WREG32(RADEON_DAC_CNTL2, dac2_cntl);
- WREG32(RADEON_CRTC2_GEN_CNTL, crtc2_gen_cntl);
- }
-
if (radeon_crtc->crtc_id) {
uint32_t crtc2_gen_cntl;
uint32_t disp2_merge_cntl;
@@ -626,6 +668,10 @@ static bool radeon_set_crtc_timing(struct drm_crtc *crtc, struct drm_display_mod
? RADEON_CRTC2_INTERLACE_EN
: 0));
+ /* rs4xx chips seem to like to have the crtc enabled when the timing is set */
+ if ((rdev->family == CHIP_RS400) || (rdev->family == CHIP_RS480))
+ crtc2_gen_cntl |= RADEON_CRTC2_EN;
+
disp2_merge_cntl = RREG32(RADEON_DISP2_MERGE_CNTL);
disp2_merge_cntl &= ~RADEON_DISP2_RGB_OFFSET_EN;
@@ -653,6 +699,10 @@ static bool radeon_set_crtc_timing(struct drm_crtc *crtc, struct drm_display_mod
? RADEON_CRTC_INTERLACE_EN
: 0));
+ /* rs4xx chips seem to like to have the crtc enabled when the timing is set */
+ if ((rdev->family == CHIP_RS400) || (rdev->family == CHIP_RS480))
+ crtc_gen_cntl |= RADEON_CRTC_EN;
+
crtc_ext_cntl = RREG32(RADEON_CRTC_EXT_CNTL);
crtc_ext_cntl |= (RADEON_XCRT_CNT_EN |
RADEON_CRTC_VSYNC_DIS |
@@ -762,12 +812,12 @@ static void radeon_set_pll(struct drm_crtc *crtc, struct drm_display_mode *mode)
}
}
- DRM_DEBUG("\n");
+ DRM_DEBUG_KMS("\n");
if (!use_bios_divs) {
- radeon_compute_pll(pll, mode->clock,
- &freq, &feedback_div, &frac_fb_div,
- &reference_div, &post_divider);
+ radeon_compute_pll_legacy(pll, mode->clock,
+ &freq, &feedback_div, &frac_fb_div,
+ &reference_div, &post_divider);
for (post_div = &post_divs[0]; post_div->divider; ++post_div) {
if (post_div->divider == post_divider)
@@ -777,7 +827,7 @@ static void radeon_set_pll(struct drm_crtc *crtc, struct drm_display_mode *mode)
if (!post_div->divider)
post_div = &post_divs[0];
- DRM_DEBUG("dc=%u, fd=%d, rd=%d, pd=%d\n",
+ DRM_DEBUG_KMS("dc=%u, fd=%d, rd=%d, pd=%d\n",
(unsigned)freq,
feedback_div,
reference_div,
@@ -846,12 +896,12 @@ static void radeon_set_pll(struct drm_crtc *crtc, struct drm_display_mode *mode)
| RADEON_P2PLL_SLEEP
| RADEON_P2PLL_ATOMIC_UPDATE_EN));
- DRM_DEBUG("Wrote2: 0x%08x 0x%08x 0x%08x (0x%08x)\n",
+ DRM_DEBUG_KMS("Wrote2: 0x%08x 0x%08x 0x%08x (0x%08x)\n",
(unsigned)pll_ref_div,
(unsigned)pll_fb_post_div,
(unsigned)htotal_cntl,
RREG32_PLL(RADEON_P2PLL_CNTL));
- DRM_DEBUG("Wrote2: rd=%u, fd=%u, pd=%u\n",
+ DRM_DEBUG_KMS("Wrote2: rd=%u, fd=%u, pd=%u\n",
(unsigned)pll_ref_div & RADEON_P2PLL_REF_DIV_MASK,
(unsigned)pll_fb_post_div & RADEON_P2PLL_FB0_DIV_MASK,
(unsigned)((pll_fb_post_div &
@@ -875,7 +925,7 @@ static void radeon_set_pll(struct drm_crtc *crtc, struct drm_display_mode *mode)
}
if (rdev->flags & RADEON_IS_MOBILITY) {
- /* A temporal workaround for the occational blanking on certain laptop panels.
+ /* A temporal workaround for the occasional 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.
@@ -952,12 +1002,12 @@ static void radeon_set_pll(struct drm_crtc *crtc, struct drm_display_mode *mode)
| RADEON_PPLL_ATOMIC_UPDATE_EN
| RADEON_PPLL_VGA_ATOMIC_UPDATE_EN));
- DRM_DEBUG("Wrote: 0x%08x 0x%08x 0x%08x (0x%08x)\n",
+ DRM_DEBUG_KMS("Wrote: 0x%08x 0x%08x 0x%08x (0x%08x)\n",
pll_ref_div,
pll_fb_post_div,
(unsigned)htotal_cntl,
RREG32_PLL(RADEON_PPLL_CNTL));
- DRM_DEBUG("Wrote: rd=%d, fd=%d, pd=%d\n",
+ DRM_DEBUG_KMS("Wrote: rd=%d, fd=%d, pd=%d\n",
pll_ref_div & RADEON_PPLL_REF_DIV_MASK,
pll_fb_post_div & RADEON_PPLL_FB3_DIV_MASK,
(pll_fb_post_div & RADEON_PPLL_POST3_DIV_MASK) >> 16);
@@ -974,7 +1024,7 @@ static void radeon_set_pll(struct drm_crtc *crtc, struct drm_display_mode *mode)
}
static bool radeon_crtc_mode_fixup(struct drm_crtc *crtc,
- struct drm_display_mode *mode,
+ const struct drm_display_mode *mode,
struct drm_display_mode *adjusted_mode)
{
if (!radeon_crtc_scaling_mode_fixup(crtc, mode, adjusted_mode))
@@ -1034,14 +1084,36 @@ static void radeon_crtc_commit(struct drm_crtc *crtc)
}
}
+static void radeon_crtc_disable(struct drm_crtc *crtc)
+{
+ radeon_crtc_dpms(crtc, DRM_MODE_DPMS_OFF);
+ if (crtc->primary->fb) {
+ int r;
+ struct radeon_framebuffer *radeon_fb;
+ struct radeon_bo *rbo;
+
+ radeon_fb = to_radeon_framebuffer(crtc->primary->fb);
+ rbo = gem_to_radeon_bo(radeon_fb->obj);
+ r = radeon_bo_reserve(rbo, false);
+ if (unlikely(r))
+ DRM_ERROR("failed to reserve rbo before unpin\n");
+ else {
+ radeon_bo_unpin(rbo);
+ radeon_bo_unreserve(rbo);
+ }
+ }
+}
+
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,
+ .mode_set_base_atomic = radeon_crtc_set_base_atomic,
.prepare = radeon_crtc_prepare,
.commit = radeon_crtc_commit,
.load_lut = radeon_crtc_load_lut,
+ .disable = radeon_crtc_disable
};
generated by cgit v1.2.3-70-g09d2 (git 2.46.0) at 2025-12-15 23:00:39 +0000