Displaying 5 results from an estimated 5 matches for "vco1".
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2020 Aug 27
0
[PATCH] drm/nouveau: remove redundant check
From: Tom Rix <trix at redhat.com>
clang static analysis flags this problem
hw.c:271:12: warning: The left operand of '>=' is a
garbage value
if (pv.M1 >= pll_lim.vco1.min_m ...
~~~~~ ^
This is mostly not a problem because an early check in
nouveau_hw_fix_bad_vpll()
if (nvbios_pll_parse(bios, pll, &pll_lim))
return;
nouveau_hw_get_pllvals(dev, pll, &pv);
shadows a similar check in nouveau_hw_get_pllvals()
ret = nvbios_pll_parse(bios,...
2014 Sep 04
1
[PATCH 4/8] fb/ramnve0: Disable FB before reclocking
...drm/nouveau/core/subdev/fb/ramnve0.c
> @@ -998,6 +998,8 @@ nve0_ram_calc_xits(struct nouveau_fb *pfb, struct nouveau_ram_data *next)
> if (ret)
> return ret;
>
> + ram_fb_disable(fuc);
> +
> ram->mode = (next->freq > fuc->refpll.vco1.max_freq) ? 2 : 1;
> ram->from = ram_rd32(fuc, 0x1373f4) & 0x0000000f;
>
> @@ -1061,6 +1063,9 @@ nve0_ram_calc_xits(struct nouveau_fb *pfb, struct nouveau_ram_data *next)
> break;
> }
>
> + if (!ret)
> + ram_fb_enabl...
2014 Sep 04
0
[PATCH 4/8] fb/ramnve0: Disable FB before reclocking
...vers/gpu/drm/nouveau/core/subdev/fb/ramnve0.c
+++ b/drivers/gpu/drm/nouveau/core/subdev/fb/ramnve0.c
@@ -998,6 +998,8 @@ nve0_ram_calc_xits(struct nouveau_fb *pfb, struct nouveau_ram_data *next)
if (ret)
return ret;
+ ram_fb_disable(fuc);
+
ram->mode = (next->freq > fuc->refpll.vco1.max_freq) ? 2 : 1;
ram->from = ram_rd32(fuc, 0x1373f4) & 0x0000000f;
@@ -1061,6 +1063,9 @@ nve0_ram_calc_xits(struct nouveau_fb *pfb, struct nouveau_ram_data *next)
break;
}
+ if (!ret)
+ ram_fb_enable(fuc);
+
return ret;
}
--
1.9.3
2014 Sep 04
10
MEMX improvements + DDR 2/3 MR generation
Patch 1 and 2 implement wait-for-vblank, required to remove flicker when reclocking memory
Patch 3 and 4 allow me to do things between waiting for VBLANK and disabling FB, like pause PFIFO and wait for the engines to idle. This minimises the time PFIFO is paused, thus maximises performance.
The rest of the patches speak for themselves. As the actual memory reclocking script is still somewhat prone
2009 Nov 23
2
[PATCH 1/3] drm/nouveau: Update the CRTC arbitration parameters on FB depth switch.
...- int vclk, arb_burst, arb_fifo_lwm;
if (get_pll_limits(dev, nv_crtc->index ? VPLL2 : VPLL1, &pll_lim))
return;
@@ -130,8 +128,7 @@ static void nv_crtc_calc_state_ext(struct drm_crtc *crtc, struct drm_display_mod
if (dev_priv->chipset > 0x40 && dot_clock <= (pll_lim.vco1.maxfreq / 2))
memset(&pll_lim.vco2, 0, sizeof(pll_lim.vco2));
- vclk = nouveau_calc_pll_mnp(dev, &pll_lim, dot_clock, pv);
- if (!vclk)
+ if (!nouveau_calc_pll_mnp(dev, &pll_lim, dot_clock, pv))
return;
state->pllsel &= PLLSEL_VPLL1_MASK | PLLSEL_VPLL2_MASK | PLLSEL_T...