--- /dev/null
+/*
+ * Copyright 2010 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: Ben Skeggs
+ */
+
+#ifndef __NOUVEAU_HWSQ_H__
+#define __NOUVEAU_HWSQ_H__
+
+struct hwsq_ucode {
+ u8 data[0x200];
+ union {
+ u8 *u08;
+ u16 *u16;
+ u32 *u32;
+ } ptr;
+ u16 len;
+
+ u32 reg;
+ u32 val;
+};
+
+static inline void
+hwsq_init(struct hwsq_ucode *hwsq)
+{
+ hwsq->ptr.u08 = hwsq->data;
+ hwsq->reg = 0xffffffff;
+ hwsq->val = 0xffffffff;
+}
+
+static inline void
+hwsq_fini(struct hwsq_ucode *hwsq)
+{
+ do {
+ *hwsq->ptr.u08++ = 0x7f;
+ hwsq->len = hwsq->ptr.u08 - hwsq->data;
+ } while (hwsq->len & 3);
+ hwsq->ptr.u08 = hwsq->data;
+}
+
+static inline void
+hwsq_unkn(struct hwsq_ucode *hwsq, u8 v0)
+{
+ *hwsq->ptr.u08++ = v0;
+}
+
+static inline void
+hwsq_op5f(struct hwsq_ucode *hwsq, u8 v0, u8 v1)
+{
+ *hwsq->ptr.u08++ = 0x5f;
+ *hwsq->ptr.u08++ = v0;
+ *hwsq->ptr.u08++ = v1;
+}
+
+static inline void
+hwsq_wr32(struct hwsq_ucode *hwsq, u32 reg, u32 val)
+{
+ if (val != hwsq->val) {
+ if ((val & 0xffff0000) == (hwsq->val & 0xffff0000)) {
+ *hwsq->ptr.u08++ = 0x42;
+ *hwsq->ptr.u16++ = (val & 0x0000ffff);
+ } else {
+ *hwsq->ptr.u08++ = 0xe2;
+ *hwsq->ptr.u32++ = val;
+ }
+
+ hwsq->val = val;
+ }
+
+ if ((reg & 0xffff0000) == (hwsq->reg & 0xffff0000)) {
+ *hwsq->ptr.u08++ = 0x40;
+ *hwsq->ptr.u16++ = (reg & 0x0000ffff);
+ } else {
+ *hwsq->ptr.u08++ = 0xe0;
+ *hwsq->ptr.u32++ = reg;
+ }
+ hwsq->reg = reg;
+}
+
+#endif
#include "nouveau_bios.h"
#include "nouveau_hw.h"
#include "nouveau_pm.h"
+#include "nouveau_hwsq.h"
enum clk_src {
clk_src_crystal,
}
struct nv50_pm_state {
+ struct hwsq_ucode mclk_hwsq;
+ u32 mscript;
+
u32 emast;
u32 nctrl;
u32 ncoef;
u32 amast;
u32 pdivs;
-
- u32 mscript;
- u32 mctrl;
- u32 mcoef;
};
static u32
return ((a / 1000) == (b / 1000));
}
+static int
+calc_mclk(struct drm_device *dev, u32 freq, struct hwsq_ucode *hwsq)
+{
+ struct drm_nouveau_private *dev_priv = dev->dev_private;
+ struct pll_lims pll;
+ u32 mast = nv_rd32(dev, 0x00c040);
+ u32 ctrl = nv_rd32(dev, 0x004008);
+ u32 coef = nv_rd32(dev, 0x00400c);
+ u32 orig = ctrl;
+ u32 crtc_mask = 0;
+ int N, M, P;
+ int ret, i;
+
+ /* use pcie refclock if possible, otherwise use mpll */
+ ctrl &= ~0x81ff0200;
+ if (clk_same(freq, read_clk(dev, clk_src_href))) {
+ ctrl |= 0x00000200 | (pll.log2p_bias << 19);
+ } else {
+ ret = calc_pll(dev, 0x4008, &pll, freq, &N, &M, &P);
+ if (ret == 0)
+ return -EINVAL;
+
+ ctrl |= 0x80000000 | (P << 22) | (P << 16);
+ ctrl |= pll.log2p_bias << 19;
+ coef = (N << 8) | M;
+ }
+
+ mast &= ~0xc0000000; /* get MCLK_2 from HREF */
+ mast |= 0x0000c000; /* use MCLK_2 as MPLL_BYPASS clock */
+
+ /* determine active crtcs */
+ for (i = 0; i < 2; i++) {
+ if (nv_rd32(dev, NV50_PDISPLAY_CRTC_C(i, CLOCK)))
+ crtc_mask |= (1 << i);
+ }
+
+ /* build the ucode which will reclock the memory for us */
+ hwsq_init(hwsq);
+ if (crtc_mask) {
+ hwsq_op5f(hwsq, crtc_mask, 0x00); /* wait for scanout */
+ hwsq_op5f(hwsq, crtc_mask, 0x01); /* wait for vblank */
+ }
+ if (dev_priv->chipset >= 0x92)
+ hwsq_wr32(hwsq, 0x611200, 0x00003300); /* disable scanout */
+ hwsq_unkn(hwsq, 0xb0); /* disable bus access */
+ hwsq_op5f(hwsq, 0x00, 0x01); /* no idea :s */
+
+ /* prepare memory controller */
+ hwsq_wr32(hwsq, 0x1002d4, 0x00000001); /* precharge banks and idle */
+ hwsq_wr32(hwsq, 0x1002d0, 0x00000001); /* force refresh */
+ hwsq_wr32(hwsq, 0x100210, 0x00000000); /* stop the automatic refresh */
+ hwsq_wr32(hwsq, 0x1002dc, 0x00000001); /* start self refresh mode */
+
+ /* reclock memory */
+ hwsq_wr32(hwsq, 0xc040, mast);
+ hwsq_wr32(hwsq, 0x4008, orig | 0x00000200); /* bypass MPLL */
+ hwsq_wr32(hwsq, 0x400c, coef);
+ hwsq_wr32(hwsq, 0x4008, ctrl);
+
+ /* restart memory controller */
+ hwsq_wr32(hwsq, 0x1002d4, 0x00000001); /* precharge banks and idle */
+ hwsq_wr32(hwsq, 0x1002dc, 0x00000000); /* stop self refresh mode */
+ hwsq_wr32(hwsq, 0x100210, 0x80000000); /* restart automatic refresh */
+ hwsq_unkn(hwsq, 0x07); /* wait for the PLL to stabilize (12us) */
+
+ hwsq_unkn(hwsq, 0x0b); /* may be unnecessary: causes flickering */
+ hwsq_unkn(hwsq, 0xd0); /* enable bus access again */
+ hwsq_op5f(hwsq, 0x00, 0x00); /* no idea, reverse of 0x00, 0x01? */
+ if (dev_priv->chipset >= 0x92)
+ hwsq_wr32(hwsq, 0x611200, 0x00003330); /* enable scanout */
+ hwsq_fini(hwsq);
+ return 0;
+}
+
void *
nv50_pm_clocks_pre(struct drm_device *dev, struct nouveau_pm_level *perflvl)
{
info->scoef = (N << 8) | M;
}
- /* memory: use pcie refclock if possible, otherwise use mpll */
- info->mscript = perflvl->memscript;
- if (clk_same(perflvl->memory, read_clk(dev, clk_src_href))) {
- info->mctrl = 0x00000200 | (pll.log2p_bias << 19);
- info->mcoef = nv_rd32(dev, 0x400c);
- } else
+ /* memory: build hwsq ucode which we'll use to reclock memory */
+ info->mclk_hwsq.len = 0;
if (perflvl->memory) {
- clk = calc_pll(dev, 0x4008, &pll, perflvl->memory,
- &N, &M, &P1);
- if (clk == 0)
+ clk = calc_mclk(dev, perflvl->memory, &info->mclk_hwsq);
+ if (clk < 0) {
+ ret = clk;
goto error;
+ }
- info->mctrl = 0x80000000 | (P1 << 22) | (P1 << 16);
- info->mctrl |= pll.log2p_bias << 19;
- info->mcoef = (N << 8) | M;
- } else {
- info->mctrl = 0x00000000;
+ info->mscript = perflvl->memscript;
}
/* vdec: avoid modifying xpll until we know exactly how the other
return ERR_PTR(ret);
}
+static int
+prog_mclk(struct drm_device *dev, struct hwsq_ucode *hwsq)
+{
+ struct drm_nouveau_private *dev_priv = dev->dev_private;
+ u32 hwsq_data, hwsq_kick;
+ int i;
+
+ if (dev_priv->chipset < 0x90) {
+ hwsq_data = 0x001400;
+ hwsq_kick = 0x00000003;
+ } else {
+ hwsq_data = 0x080000;
+ hwsq_kick = 0x00000001;
+ }
+
+ /* upload hwsq ucode */
+ nv_mask(dev, 0x001098, 0x00000008, 0x00000000);
+ nv_wr32(dev, 0x001304, 0x00000000);
+ for (i = 0; i < hwsq->len / 4; i++)
+ nv_wr32(dev, hwsq_data + (i * 4), hwsq->ptr.u32[i]);
+ nv_mask(dev, 0x001098, 0x00000018, 0x00000018);
+
+ /* launch, and wait for completion */
+ nv_wr32(dev, 0x00130c, hwsq_kick);
+ if (!nv_wait(dev, 0x001308, 0x00000100, 0x00000000)) {
+ NV_ERROR(dev, "hwsq ucode exec timed out\n");
+ NV_ERROR(dev, "0x001308: 0x%08x\n", nv_rd32(dev, 0x001308));
+ for (i = 0; i < hwsq->len / 4; i++) {
+ NV_ERROR(dev, "0x%06x: 0x%08x\n", 0x1400 + (i * 4),
+ nv_rd32(dev, 0x001400 + (i * 4)));
+ }
+
+ return -EIO;
+ }
+
+ return 0;
+}
+
int
nv50_pm_clocks_set(struct drm_device *dev, void *data)
{
if (!nv_wait(dev, 0x002504, 0x00000010, 0x00000010))
goto error;
+ /* memory: it is *very* important we change this first, the ucode
+ * we build in pre() now has hardcoded 0xc040 values, which can't
+ * change before we execute it or the engine clocks may end up
+ * messed up.
+ */
+ if (info->mclk_hwsq.len) {
+ /* execute some scripts that do ??? from the vbios.. */
+ if (!bit_table(dev, 'M', &M) && M.version == 1) {
+ if (M.length >= 6)
+ nouveau_bios_init_exec(dev, ROM16(M.data[5]));
+ if (M.length >= 8)
+ nouveau_bios_init_exec(dev, ROM16(M.data[7]));
+ if (M.length >= 10)
+ nouveau_bios_init_exec(dev, ROM16(M.data[9]));
+ nouveau_bios_init_exec(dev, info->mscript);
+ }
+
+ ret = prog_mclk(dev, &info->mclk_hwsq);
+ if (ret)
+ goto resume;
+ }
+
/* reclock vdec/dom6 */
nv_mask(dev, 0x00c040, 0x00000c00, 0x00000000);
switch (dev_priv->chipset) {
nv_wr32(dev, 0x00402c, info->ncoef);
nv_mask(dev, 0x00c040, 0x00100033, info->emast);
- /* memory */
- if (!info->mctrl)
- goto resume;
-
- /* execute some scripts that do ??? from the vbios.. */
- if (!bit_table(dev, 'M', &M) && M.version == 1) {
- if (M.length >= 6)
- nouveau_bios_init_exec(dev, ROM16(M.data[5]));
- if (M.length >= 8)
- nouveau_bios_init_exec(dev, ROM16(M.data[7]));
- if (M.length >= 10)
- nouveau_bios_init_exec(dev, ROM16(M.data[9]));
- nouveau_bios_init_exec(dev, info->mscript);
- }
-
- /* disable display */
- if (dev_priv->chipset >= 0x92) {
- nv_wr32(dev, 0x611200, 0x00003300);
- udelay(100);
- }
-
- /* prepare ram for reclocking */
- nv_wr32(dev, 0x1002d4, 0x00000001); /* precharge */
- nv_wr32(dev, 0x1002d0, 0x00000001); /* refresh */
- nv_wr32(dev, 0x1002d0, 0x00000001); /* refresh */
- nv_mask(dev, 0x100210, 0x80000000, 0x00000000); /* no auto-refresh */
- nv_wr32(dev, 0x1002dc, 0x00000001); /* enable self-refresh */
-
- /* modify mpll */
- nv_mask(dev, 0x00c040, 0x0000c000, 0x0000c000);
- nv_mask(dev, 0x004008, 0x01ff0200, 0x00000200 | info->mctrl);
- nv_wr32(dev, 0x00400c, info->mcoef);
- udelay(100);
- nv_mask(dev, 0x004008, 0x81ff0200, info->mctrl);
-
- /* re-enable normal operation of memory controller */
- nv_wr32(dev, 0x1002dc, 0x00000000);
- nv_mask(dev, 0x100210, 0x80000000, 0x80000000);
- udelay(100);
-
- /* re-enable display */
- if (dev_priv->chipset >= 0x92)
- nv_wr32(dev, 0x611200, 0x00003330);
-
goto resume;
error:
ret = -EBUSY;
projects / GitHub / exynos8895 / android_kernel_samsung_universal8895.git / commitdiff