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path: root/drivers/gpu/drm/nouveau/nvkm/subdev/fb/ramnv50.c
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Diffstat (limited to 'drivers/gpu/drm/nouveau/nvkm/subdev/fb/ramnv50.c')
-rw-r--r--drivers/gpu/drm/nouveau/nvkm/subdev/fb/ramnv50.c121
1 files changed, 110 insertions, 11 deletions
diff --git a/drivers/gpu/drm/nouveau/nvkm/subdev/fb/ramnv50.c b/drivers/gpu/drm/nouveau/nvkm/subdev/fb/ramnv50.c
index 9197e0ef5cdb..87bde8ff2d6b 100644
--- a/drivers/gpu/drm/nouveau/nvkm/subdev/fb/ramnv50.c
+++ b/drivers/gpu/drm/nouveau/nvkm/subdev/fb/ramnv50.c
@@ -33,6 +33,7 @@
#include <subdev/bios/rammap.h>
#include <subdev/bios/timing.h>
#include <subdev/clk/pll.h>
+#include <subdev/gpio.h>
struct nv50_ramseq {
struct hwsq base;
@@ -59,6 +60,7 @@ struct nv50_ramseq {
struct hwsq_reg r_0x611200;
struct hwsq_reg r_timing[9];
struct hwsq_reg r_mr[4];
+ struct hwsq_reg r_gpio[4];
};
struct nv50_ram {
@@ -144,6 +146,38 @@ nv50_ram_timing_calc(struct nv50_ram *ram, u32 *timing)
nvkm_debug(subdev, " 240: %08x\n", timing[8]);
return 0;
}
+
+static int
+nv50_ram_timing_read(struct nv50_ram *ram, u32 *timing)
+{
+ unsigned int i;
+ struct nvbios_ramcfg *cfg = &ram->base.target.bios;
+ struct nvkm_subdev *subdev = &ram->base.fb->subdev;
+ struct nvkm_device *device = subdev->device;
+
+ for (i = 0; i <= 8; i++)
+ timing[i] = nvkm_rd32(device, 0x100220 + (i * 4));
+
+ /* Derive the bare minimum for the MR calculation to succeed */
+ cfg->timing_ver = 0x10;
+ T(CL) = (timing[3] & 0xff) + 1;
+
+ switch (ram->base.type) {
+ case NVKM_RAM_TYPE_DDR2:
+ T(CWL) = T(CL) - 1;
+ break;
+ case NVKM_RAM_TYPE_GDDR3:
+ T(CWL) = ((timing[2] & 0xff000000) >> 24) + 1;
+ break;
+ default:
+ return -ENOSYS;
+ break;
+ }
+
+ T(WR) = ((timing[1] >> 24) & 0xff) - 1 - T(CWL);
+
+ return 0;
+}
#undef T
static void
@@ -154,6 +188,33 @@ nvkm_sddr2_dll_reset(struct nv50_ramseq *hwsq)
ram_nsec(hwsq, 24000);
}
+static void
+nv50_ram_gpio(struct nv50_ramseq *hwsq, u8 tag, u32 val)
+{
+ struct nvkm_gpio *gpio = hwsq->base.subdev->device->gpio;
+ struct dcb_gpio_func func;
+ u32 reg, sh, gpio_val;
+ int ret;
+
+ if (nvkm_gpio_get(gpio, 0, tag, DCB_GPIO_UNUSED) != val) {
+ ret = nvkm_gpio_find(gpio, 0, tag, DCB_GPIO_UNUSED, &func);
+ if (ret)
+ return;
+
+ reg = func.line >> 3;
+ sh = (func.line & 0x7) << 2;
+ gpio_val = ram_rd32(hwsq, gpio[reg]);
+
+ if (gpio_val & (8 << sh))
+ val = !val;
+ if (!(func.log[1] & 1))
+ val = !val;
+
+ ram_mask(hwsq, gpio[reg], (0x3 << sh), ((val | 0x2) << sh));
+ ram_nsec(hwsq, 20000);
+ }
+}
+
static int
nv50_ram_calc(struct nvkm_ram *base, u32 freq)
{
@@ -213,10 +274,11 @@ nv50_ram_calc(struct nvkm_ram *base, u32 freq)
strap, data, ver, hdr);
return -EINVAL;
}
+ nv50_ram_timing_calc(ram, timing);
+ } else {
+ nv50_ram_timing_read(ram, timing);
}
- nv50_ram_timing_calc(ram, timing);
-
ret = ram_init(hwsq, subdev);
if (ret)
return ret;
@@ -235,14 +297,18 @@ nv50_ram_calc(struct nvkm_ram *base, u32 freq)
break;
}
- if (ret)
+ if (ret) {
+ nvkm_error(subdev, "Could not calculate MR\n");
return ret;
+ }
+
+ if (subdev->device->chipset <= 0x96 && !next->bios.ramcfg_00_03_02)
+ ram_mask(hwsq, 0x100710, 0x00000200, 0x00000000);
/* Always disable this bit during reclock */
ram_mask(hwsq, 0x100200, 0x00000800, 0x00000000);
- ram_wait(hwsq, 0x01, 0x00); /* wait for !vblank */
- ram_wait(hwsq, 0x01, 0x01); /* wait for vblank */
+ ram_wait_vblank(hwsq);
ram_wr32(hwsq, 0x611200, 0x00003300);
ram_wr32(hwsq, 0x002504, 0x00000001); /* block fifo */
ram_nsec(hwsq, 8000);
@@ -250,6 +316,9 @@ nv50_ram_calc(struct nvkm_ram *base, u32 freq)
ram_wait(hwsq, 0x00, 0x01); /* wait for fb disabled */
ram_nsec(hwsq, 2000);
+ if (next->bios.timing_10_ODT)
+ nv50_ram_gpio(hwsq, 0x2e, 1);
+
ram_wr32(hwsq, 0x1002d4, 0x00000001); /* precharge */
ram_wr32(hwsq, 0x1002d0, 0x00000001); /* refresh */
ram_wr32(hwsq, 0x1002d0, 0x00000001); /* refresh */
@@ -286,8 +355,12 @@ nv50_ram_calc(struct nvkm_ram *base, u32 freq)
next->bios.rammap_00_16_40 << 14);
ram_mask(hwsq, 0x00400c, 0x0000ffff, (N1 << 8) | M1);
ram_mask(hwsq, 0x004008, 0x91ff0000, r004008);
- if (subdev->device->chipset >= 0x96)
+
+ /* XXX: GDDR3 only? */
+ if (subdev->device->chipset >= 0x92)
ram_wr32(hwsq, 0x100da0, r100da0);
+
+ nv50_ram_gpio(hwsq, 0x18, !next->bios.ramcfg_FBVDDQ);
ram_nsec(hwsq, 64000); /*XXX*/
ram_nsec(hwsq, 32000); /*XXX*/
@@ -329,19 +402,33 @@ nv50_ram_calc(struct nvkm_ram *base, u32 freq)
ram_mask(hwsq, 0x100200, 0x00001000, !next->bios.ramcfg_00_04_02 << 12);
/* XXX: A lot of this could be "chipset"/"ram type" specific stuff */
- unk710 = ram_rd32(hwsq, 0x100710) & ~0x00000101;
+ unk710 = ram_rd32(hwsq, 0x100710) & ~0x00000100;
unk714 = ram_rd32(hwsq, 0x100714) & ~0xf0000020;
unk718 = ram_rd32(hwsq, 0x100718) & ~0x00000100;
unk71c = ram_rd32(hwsq, 0x10071c) & ~0x00000100;
+ if (subdev->device->chipset <= 0x96) {
+ unk710 &= ~0x0000006e;
+ unk714 &= ~0x00000100;
+
+ if (!next->bios.ramcfg_00_03_08)
+ unk710 |= 0x00000060;
+ if (!next->bios.ramcfg_FBVDDQ)
+ unk714 |= 0x00000100;
+ if ( next->bios.ramcfg_00_04_04)
+ unk710 |= 0x0000000e;
+ } else {
+ unk710 &= ~0x00000001;
+
+ if (!next->bios.ramcfg_00_03_08)
+ unk710 |= 0x00000001;
+ }
if ( next->bios.ramcfg_00_03_01)
unk71c |= 0x00000100;
if ( next->bios.ramcfg_00_03_02)
unk710 |= 0x00000100;
- if (!next->bios.ramcfg_00_03_08) {
- unk710 |= 0x1;
- unk714 |= 0x20;
- }
+ if (!next->bios.ramcfg_00_03_08)
+ unk714 |= 0x00000020;
if ( next->bios.ramcfg_00_04_04)
unk714 |= 0x70000000;
if ( next->bios.ramcfg_00_04_20)
@@ -352,6 +439,8 @@ nv50_ram_calc(struct nvkm_ram *base, u32 freq)
ram_mask(hwsq, 0x100718, 0xffffffff, unk718);
ram_mask(hwsq, 0x100710, 0xffffffff, unk710);
+ /* XXX: G94 does not even test these regs in trace. Harmless we do it,
+ * but why is it omitted? */
if (next->bios.rammap_00_16_20) {
ram_wr32(hwsq, 0x1005a0, next->bios.ramcfg_00_07 << 16 |
next->bios.ramcfg_00_06 << 8 |
@@ -364,6 +453,9 @@ nv50_ram_calc(struct nvkm_ram *base, u32 freq)
}
ram_mask(hwsq, mr[1], 0xffffffff, ram->base.mr[1]);
+ if (!next->bios.timing_10_ODT)
+ nv50_ram_gpio(hwsq, 0x2e, 0);
+
/* Reset DLL */
if (!next->bios.ramcfg_DLLoff)
nvkm_sddr2_dll_reset(hwsq);
@@ -379,6 +471,8 @@ nv50_ram_calc(struct nvkm_ram *base, u32 freq)
ram_mask(hwsq, 0x004008, 0x00004000, 0x00000000);
if (next->bios.ramcfg_00_03_02)
ram_mask(hwsq, 0x10021c, 0x00010000, 0x00010000);
+ if (subdev->device->chipset <= 0x96 && next->bios.ramcfg_00_03_02)
+ ram_mask(hwsq, 0x100710, 0x00000200, 0x00000200);
return 0;
}
@@ -634,5 +728,10 @@ nv50_ram_new(struct nvkm_fb *fb, struct nvkm_ram **pram)
ram->hwsq.r_mr[3] = hwsq_reg(0x1002e4);
}
+ ram->hwsq.r_gpio[0] = hwsq_reg(0x00e104);
+ ram->hwsq.r_gpio[1] = hwsq_reg(0x00e108);
+ ram->hwsq.r_gpio[2] = hwsq_reg(0x00e120);
+ ram->hwsq.r_gpio[3] = hwsq_reg(0x00e124);
+
return 0;
}
generated by cgit (git 2.34.1) at 2024-07-02 04:42:39 +0000