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authorLinus Torvalds <torvalds@linux-foundation.org>2015-09-04 15:49:32 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2015-09-04 15:49:32 -0700
commitf377ea88b862bf7151be96d276f4cb740f8e1c41 (patch)
tree6205913431c012e285316281b6221a20d4a92128 /drivers/gpu/drm/nouveau/nvkm/subdev/clk/gk20a.c
parent51e771c0d25b43d0f12b2c7c01939942becbbe28 (diff)
parent73bf1b7be7aab60d7c651402441dd0b0b4991098 (diff)
Merge branch 'drm-next' of git://people.freedesktop.org/~airlied/linux
Pull drm updates from Dave Airlie: "This is the main pull request for the drm for 4.3. Nouveau is probably the biggest amount of changes in here, since it missed 4.2. Highlights below, along with the usual bunch of fixes. All stuff outside drm should have applicable acks. Highlights: - new drivers: freescale dcu kms driver - core: more atomic fixes disable some dri1 interfaces on kms drivers drop fb panic handling, this was just getting more broken, as more locking was required. new core fbdev Kconfig support - instead of each driver enable/disabling it struct_mutex cleanups - panel: more new panels cleanup Kconfig - i915: Skylake support enabled by default legacy modesetting using atomic infrastructure Skylake fixes GEN9 workarounds - amdgpu: Fiji support CGS support for amdgpu Initial GPU scheduler - off by default Lots of bug fixes and optimisations. - radeon: DP fixes misc fixes - amdkfd: Add Carrizo support for amdkfd using amdgpu. - nouveau: long pending cleanup to complete driver, fully bisectable which makes it larger, perfmon work more reclocking improvements maxwell displayport fixes - vmwgfx: new DX device support, supports OpenGL 3.3 screen targets support - mgag200: G200eW support G200e new revision support - msm: dragonboard 410c support, msm8x94 support, msm8x74v1 support yuv format support dma plane support mdp5 rotation initial hdcp - sti: atomic support - exynos: lots of cleanups atomic modesetting/pageflipping support render node support - tegra: tegra210 support (dc, dsi, dp/hdmi) dpms with atomic modesetting support - atmel: support for 3 more atmel SoCs new input formats, PRIME support. - dwhdmi: preparing to add audio support - rockchip: yuv plane support" * 'drm-next' of git://people.freedesktop.org/~airlied/linux: (1369 commits) drm/amdgpu: rename gmc_v8_0_init_compute_vmid drm/amdgpu: fix vce3 instance handling drm/amdgpu: remove ib test for the second VCE Ring drm/amdgpu: properly enable VM fault interrupts drm/amdgpu: fix warning in scheduler drm/amdgpu: fix buffer placement under memory pressure drm/amdgpu/cz: fix cz_dpm_update_low_memory_pstate logic drm/amdgpu: fix typo in dce11 watermark setup drm/amdgpu: fix typo in dce10 watermark setup drm/amdgpu: use top down allocation for non-CPU accessible vram drm/amdgpu: be explicit about cpu vram access for driver BOs (v2) drm/amdgpu: set MEC doorbell range for Fiji drm/amdgpu: implement burst NOP for SDMA drm/amdgpu: add insert_nop ring func and default implementation drm/amdgpu: add amdgpu_get_sdma_instance helper function drm/amdgpu: add AMDGPU_MAX_SDMA_INSTANCES drm/amdgpu: add burst_nop flag for sdma drm/amdgpu: add count field for the SDMA NOP packet v2 drm/amdgpu: use PT for VM sync on unmap drm/amdgpu: make wait_event uninterruptible in push_job ...
Diffstat (limited to 'drivers/gpu/drm/nouveau/nvkm/subdev/clk/gk20a.c')
-rw-r--r--drivers/gpu/drm/nouveau/nvkm/subdev/clk/gk20a.c356
1 files changed, 173 insertions, 183 deletions
diff --git a/drivers/gpu/drm/nouveau/nvkm/subdev/clk/gk20a.c b/drivers/gpu/drm/nouveau/nvkm/subdev/clk/gk20a.c
index 65c532742b08..254094ab7fb8 100644
--- a/drivers/gpu/drm/nouveau/nvkm/subdev/clk/gk20a.c
+++ b/drivers/gpu/drm/nouveau/nvkm/subdev/clk/gk20a.c
@@ -22,14 +22,11 @@
* Shamelessly ripped off from ChromeOS's gk20a/clk_pllg.c
*
*/
-#include <subdev/clk.h>
-#include <subdev/timer.h>
-
-#include <core/device.h>
+#define gk20a_clk(p) container_of((p), struct gk20a_clk, base)
+#include "priv.h"
-#ifdef __KERNEL__
-#include <nouveau_platform.h>
-#endif
+#include <core/tegra.h>
+#include <subdev/timer.h>
#define MHZ (1000 * 1000)
@@ -117,41 +114,42 @@ static const struct gk20a_clk_pllg_params gk20a_pllg_params = {
.min_pl = 1, .max_pl = 32,
};
-struct gk20a_clk_priv {
+struct gk20a_clk {
struct nvkm_clk base;
const struct gk20a_clk_pllg_params *params;
u32 m, n, pl;
u32 parent_rate;
};
-#define to_gk20a_clk(base) container_of(base, struct gk20a_clk_priv, base)
static void
-gk20a_pllg_read_mnp(struct gk20a_clk_priv *priv)
+gk20a_pllg_read_mnp(struct gk20a_clk *clk)
{
+ struct nvkm_device *device = clk->base.subdev.device;
u32 val;
- val = nv_rd32(priv, GPCPLL_COEFF);
- priv->m = (val >> GPCPLL_COEFF_M_SHIFT) & MASK(GPCPLL_COEFF_M_WIDTH);
- priv->n = (val >> GPCPLL_COEFF_N_SHIFT) & MASK(GPCPLL_COEFF_N_WIDTH);
- priv->pl = (val >> GPCPLL_COEFF_P_SHIFT) & MASK(GPCPLL_COEFF_P_WIDTH);
+ val = nvkm_rd32(device, GPCPLL_COEFF);
+ clk->m = (val >> GPCPLL_COEFF_M_SHIFT) & MASK(GPCPLL_COEFF_M_WIDTH);
+ clk->n = (val >> GPCPLL_COEFF_N_SHIFT) & MASK(GPCPLL_COEFF_N_WIDTH);
+ clk->pl = (val >> GPCPLL_COEFF_P_SHIFT) & MASK(GPCPLL_COEFF_P_WIDTH);
}
static u32
-gk20a_pllg_calc_rate(struct gk20a_clk_priv *priv)
+gk20a_pllg_calc_rate(struct gk20a_clk *clk)
{
u32 rate;
u32 divider;
- rate = priv->parent_rate * priv->n;
- divider = priv->m * pl_to_div[priv->pl];
+ rate = clk->parent_rate * clk->n;
+ divider = clk->m * pl_to_div[clk->pl];
do_div(rate, divider);
return rate / 2;
}
static int
-gk20a_pllg_calc_mnp(struct gk20a_clk_priv *priv, unsigned long rate)
+gk20a_pllg_calc_mnp(struct gk20a_clk *clk, unsigned long rate)
{
+ struct nvkm_subdev *subdev = &clk->base.subdev;
u32 target_clk_f, ref_clk_f, target_freq;
u32 min_vco_f, max_vco_f;
u32 low_pl, high_pl, best_pl;
@@ -163,13 +161,13 @@ gk20a_pllg_calc_mnp(struct gk20a_clk_priv *priv, unsigned long rate)
u32 pl;
target_clk_f = rate * 2 / MHZ;
- ref_clk_f = priv->parent_rate / MHZ;
+ ref_clk_f = clk->parent_rate / MHZ;
- max_vco_f = priv->params->max_vco;
- min_vco_f = priv->params->min_vco;
- best_m = priv->params->max_m;
- best_n = priv->params->min_n;
- best_pl = priv->params->min_pl;
+ max_vco_f = clk->params->max_vco;
+ min_vco_f = clk->params->min_vco;
+ best_m = clk->params->max_m;
+ best_n = clk->params->min_n;
+ best_pl = clk->params->min_pl;
target_vco_f = target_clk_f + target_clk_f / 50;
if (max_vco_f < target_vco_f)
@@ -177,13 +175,13 @@ gk20a_pllg_calc_mnp(struct gk20a_clk_priv *priv, unsigned long rate)
/* min_pl <= high_pl <= max_pl */
high_pl = (max_vco_f + target_vco_f - 1) / target_vco_f;
- high_pl = min(high_pl, priv->params->max_pl);
- high_pl = max(high_pl, priv->params->min_pl);
+ high_pl = min(high_pl, clk->params->max_pl);
+ high_pl = max(high_pl, clk->params->min_pl);
/* min_pl <= low_pl <= max_pl */
low_pl = min_vco_f / target_vco_f;
- low_pl = min(low_pl, priv->params->max_pl);
- low_pl = max(low_pl, priv->params->min_pl);
+ low_pl = min(low_pl, clk->params->max_pl);
+ low_pl = max(low_pl, clk->params->min_pl);
/* Find Indices of high_pl and low_pl */
for (pl = 0; pl < ARRAY_SIZE(pl_to_div) - 1; pl++) {
@@ -199,30 +197,30 @@ gk20a_pllg_calc_mnp(struct gk20a_clk_priv *priv, unsigned long rate)
}
}
- nv_debug(priv, "low_PL %d(div%d), high_PL %d(div%d)", low_pl,
- pl_to_div[low_pl], high_pl, pl_to_div[high_pl]);
+ nvkm_debug(subdev, "low_PL %d(div%d), high_PL %d(div%d)", low_pl,
+ pl_to_div[low_pl], high_pl, pl_to_div[high_pl]);
/* Select lowest possible VCO */
for (pl = low_pl; pl <= high_pl; pl++) {
target_vco_f = target_clk_f * pl_to_div[pl];
- for (m = priv->params->min_m; m <= priv->params->max_m; m++) {
+ for (m = clk->params->min_m; m <= clk->params->max_m; m++) {
u_f = ref_clk_f / m;
- if (u_f < priv->params->min_u)
+ if (u_f < clk->params->min_u)
break;
- if (u_f > priv->params->max_u)
+ if (u_f > clk->params->max_u)
continue;
n = (target_vco_f * m) / ref_clk_f;
n2 = ((target_vco_f * m) + (ref_clk_f - 1)) / ref_clk_f;
- if (n > priv->params->max_n)
+ if (n > clk->params->max_n)
break;
for (; n <= n2; n++) {
- if (n < priv->params->min_n)
+ if (n < clk->params->min_n)
continue;
- if (n > priv->params->max_n)
+ if (n > clk->params->max_n)
break;
vco_f = ref_clk_f * n / m;
@@ -250,71 +248,75 @@ found_match:
WARN_ON(best_delta == ~0);
if (best_delta != 0)
- nv_debug(priv, "no best match for target @ %dMHz on gpc_pll",
- target_clk_f);
+ nvkm_debug(subdev,
+ "no best match for target @ %dMHz on gpc_pll",
+ target_clk_f);
- priv->m = best_m;
- priv->n = best_n;
- priv->pl = best_pl;
+ clk->m = best_m;
+ clk->n = best_n;
+ clk->pl = best_pl;
- target_freq = gk20a_pllg_calc_rate(priv) / MHZ;
+ target_freq = gk20a_pllg_calc_rate(clk) / MHZ;
- nv_debug(priv, "actual target freq %d MHz, M %d, N %d, PL %d(div%d)\n",
- target_freq, priv->m, priv->n, priv->pl, pl_to_div[priv->pl]);
+ nvkm_debug(subdev,
+ "actual target freq %d MHz, M %d, N %d, PL %d(div%d)\n",
+ target_freq, clk->m, clk->n, clk->pl, pl_to_div[clk->pl]);
return 0;
}
static int
-gk20a_pllg_slide(struct gk20a_clk_priv *priv, u32 n)
+gk20a_pllg_slide(struct gk20a_clk *clk, u32 n)
{
+ struct nvkm_subdev *subdev = &clk->base.subdev;
+ struct nvkm_device *device = subdev->device;
u32 val;
int ramp_timeout;
/* get old coefficients */
- val = nv_rd32(priv, GPCPLL_COEFF);
+ val = nvkm_rd32(device, GPCPLL_COEFF);
/* do nothing if NDIV is the same */
if (n == ((val >> GPCPLL_COEFF_N_SHIFT) & MASK(GPCPLL_COEFF_N_WIDTH)))
return 0;
/* setup */
- nv_mask(priv, GPCPLL_CFG2, 0xff << GPCPLL_CFG2_PLL_STEPA_SHIFT,
+ nvkm_mask(device, GPCPLL_CFG2, 0xff << GPCPLL_CFG2_PLL_STEPA_SHIFT,
0x2b << GPCPLL_CFG2_PLL_STEPA_SHIFT);
- nv_mask(priv, GPCPLL_CFG3, 0xff << GPCPLL_CFG3_PLL_STEPB_SHIFT,
+ nvkm_mask(device, GPCPLL_CFG3, 0xff << GPCPLL_CFG3_PLL_STEPB_SHIFT,
0xb << GPCPLL_CFG3_PLL_STEPB_SHIFT);
/* pll slowdown mode */
- nv_mask(priv, GPCPLL_NDIV_SLOWDOWN,
+ nvkm_mask(device, GPCPLL_NDIV_SLOWDOWN,
BIT(GPCPLL_NDIV_SLOWDOWN_SLOWDOWN_USING_PLL_SHIFT),
BIT(GPCPLL_NDIV_SLOWDOWN_SLOWDOWN_USING_PLL_SHIFT));
/* new ndiv ready for ramp */
- val = nv_rd32(priv, GPCPLL_COEFF);
+ val = nvkm_rd32(device, GPCPLL_COEFF);
val &= ~(MASK(GPCPLL_COEFF_N_WIDTH) << GPCPLL_COEFF_N_SHIFT);
val |= (n & MASK(GPCPLL_COEFF_N_WIDTH)) << GPCPLL_COEFF_N_SHIFT;
udelay(1);
- nv_wr32(priv, GPCPLL_COEFF, val);
+ nvkm_wr32(device, GPCPLL_COEFF, val);
/* dynamic ramp to new ndiv */
- val = nv_rd32(priv, GPCPLL_NDIV_SLOWDOWN);
+ val = nvkm_rd32(device, GPCPLL_NDIV_SLOWDOWN);
val |= 0x1 << GPCPLL_NDIV_SLOWDOWN_EN_DYNRAMP_SHIFT;
udelay(1);
- nv_wr32(priv, GPCPLL_NDIV_SLOWDOWN, val);
+ nvkm_wr32(device, GPCPLL_NDIV_SLOWDOWN, val);
for (ramp_timeout = 500; ramp_timeout > 0; ramp_timeout--) {
udelay(1);
- val = nv_rd32(priv, GPC_BCAST_NDIV_SLOWDOWN_DEBUG);
+ val = nvkm_rd32(device, GPC_BCAST_NDIV_SLOWDOWN_DEBUG);
if (val & GPC_BCAST_NDIV_SLOWDOWN_DEBUG_PLL_DYNRAMP_DONE_SYNCED_MASK)
break;
}
/* exit slowdown mode */
- nv_mask(priv, GPCPLL_NDIV_SLOWDOWN,
+ nvkm_mask(device, GPCPLL_NDIV_SLOWDOWN,
BIT(GPCPLL_NDIV_SLOWDOWN_SLOWDOWN_USING_PLL_SHIFT) |
BIT(GPCPLL_NDIV_SLOWDOWN_EN_DYNRAMP_SHIFT), 0);
- nv_rd32(priv, GPCPLL_NDIV_SLOWDOWN);
+ nvkm_rd32(device, GPCPLL_NDIV_SLOWDOWN);
if (ramp_timeout <= 0) {
- nv_error(priv, "gpcpll dynamic ramp timeout\n");
+ nvkm_error(subdev, "gpcpll dynamic ramp timeout\n");
return -ETIMEDOUT;
}
@@ -322,149 +324,147 @@ gk20a_pllg_slide(struct gk20a_clk_priv *priv, u32 n)
}
static void
-_gk20a_pllg_enable(struct gk20a_clk_priv *priv)
+_gk20a_pllg_enable(struct gk20a_clk *clk)
{
- nv_mask(priv, GPCPLL_CFG, GPCPLL_CFG_ENABLE, GPCPLL_CFG_ENABLE);
- nv_rd32(priv, GPCPLL_CFG);
+ struct nvkm_device *device = clk->base.subdev.device;
+ nvkm_mask(device, GPCPLL_CFG, GPCPLL_CFG_ENABLE, GPCPLL_CFG_ENABLE);
+ nvkm_rd32(device, GPCPLL_CFG);
}
static void
-_gk20a_pllg_disable(struct gk20a_clk_priv *priv)
+_gk20a_pllg_disable(struct gk20a_clk *clk)
{
- nv_mask(priv, GPCPLL_CFG, GPCPLL_CFG_ENABLE, 0);
- nv_rd32(priv, GPCPLL_CFG);
+ struct nvkm_device *device = clk->base.subdev.device;
+ nvkm_mask(device, GPCPLL_CFG, GPCPLL_CFG_ENABLE, 0);
+ nvkm_rd32(device, GPCPLL_CFG);
}
static int
-_gk20a_pllg_program_mnp(struct gk20a_clk_priv *priv, bool allow_slide)
+_gk20a_pllg_program_mnp(struct gk20a_clk *clk, bool allow_slide)
{
+ struct nvkm_subdev *subdev = &clk->base.subdev;
+ struct nvkm_device *device = subdev->device;
u32 val, cfg;
u32 m_old, pl_old, n_lo;
/* get old coefficients */
- val = nv_rd32(priv, GPCPLL_COEFF);
+ val = nvkm_rd32(device, GPCPLL_COEFF);
m_old = (val >> GPCPLL_COEFF_M_SHIFT) & MASK(GPCPLL_COEFF_M_WIDTH);
pl_old = (val >> GPCPLL_COEFF_P_SHIFT) & MASK(GPCPLL_COEFF_P_WIDTH);
/* do NDIV slide if there is no change in M and PL */
- cfg = nv_rd32(priv, GPCPLL_CFG);
- if (allow_slide && priv->m == m_old && priv->pl == pl_old &&
+ cfg = nvkm_rd32(device, GPCPLL_CFG);
+ if (allow_slide && clk->m == m_old && clk->pl == pl_old &&
(cfg & GPCPLL_CFG_ENABLE)) {
- return gk20a_pllg_slide(priv, priv->n);
+ return gk20a_pllg_slide(clk, clk->n);
}
/* slide down to NDIV_LO */
- n_lo = DIV_ROUND_UP(m_old * priv->params->min_vco,
- priv->parent_rate / MHZ);
+ n_lo = DIV_ROUND_UP(m_old * clk->params->min_vco,
+ clk->parent_rate / MHZ);
if (allow_slide && (cfg & GPCPLL_CFG_ENABLE)) {
- int ret = gk20a_pllg_slide(priv, n_lo);
+ int ret = gk20a_pllg_slide(clk, n_lo);
if (ret)
return ret;
}
/* split FO-to-bypass jump in halfs by setting out divider 1:2 */
- nv_mask(priv, GPC2CLK_OUT, GPC2CLK_OUT_VCODIV_MASK,
+ nvkm_mask(device, GPC2CLK_OUT, GPC2CLK_OUT_VCODIV_MASK,
0x2 << GPC2CLK_OUT_VCODIV_SHIFT);
/* put PLL in bypass before programming it */
- val = nv_rd32(priv, SEL_VCO);
+ val = nvkm_rd32(device, SEL_VCO);
val &= ~(BIT(SEL_VCO_GPC2CLK_OUT_SHIFT));
udelay(2);
- nv_wr32(priv, SEL_VCO, val);
+ nvkm_wr32(device, SEL_VCO, val);
/* get out from IDDQ */
- val = nv_rd32(priv, GPCPLL_CFG);
+ val = nvkm_rd32(device, GPCPLL_CFG);
if (val & GPCPLL_CFG_IDDQ) {
val &= ~GPCPLL_CFG_IDDQ;
- nv_wr32(priv, GPCPLL_CFG, val);
- nv_rd32(priv, GPCPLL_CFG);
+ nvkm_wr32(device, GPCPLL_CFG, val);
+ nvkm_rd32(device, GPCPLL_CFG);
udelay(2);
}
- _gk20a_pllg_disable(priv);
+ _gk20a_pllg_disable(clk);
- nv_debug(priv, "%s: m=%d n=%d pl=%d\n", __func__, priv->m, priv->n,
- priv->pl);
+ nvkm_debug(subdev, "%s: m=%d n=%d pl=%d\n", __func__,
+ clk->m, clk->n, clk->pl);
- n_lo = DIV_ROUND_UP(priv->m * priv->params->min_vco,
- priv->parent_rate / MHZ);
- val = priv->m << GPCPLL_COEFF_M_SHIFT;
- val |= (allow_slide ? n_lo : priv->n) << GPCPLL_COEFF_N_SHIFT;
- val |= priv->pl << GPCPLL_COEFF_P_SHIFT;
- nv_wr32(priv, GPCPLL_COEFF, val);
+ n_lo = DIV_ROUND_UP(clk->m * clk->params->min_vco,
+ clk->parent_rate / MHZ);
+ val = clk->m << GPCPLL_COEFF_M_SHIFT;
+ val |= (allow_slide ? n_lo : clk->n) << GPCPLL_COEFF_N_SHIFT;
+ val |= clk->pl << GPCPLL_COEFF_P_SHIFT;
+ nvkm_wr32(device, GPCPLL_COEFF, val);
- _gk20a_pllg_enable(priv);
+ _gk20a_pllg_enable(clk);
- val = nv_rd32(priv, GPCPLL_CFG);
+ val = nvkm_rd32(device, GPCPLL_CFG);
if (val & GPCPLL_CFG_LOCK_DET_OFF) {
val &= ~GPCPLL_CFG_LOCK_DET_OFF;
- nv_wr32(priv, GPCPLL_CFG, val);
+ nvkm_wr32(device, GPCPLL_CFG, val);
}
- if (!nvkm_timer_wait_eq(priv, 300000, GPCPLL_CFG, GPCPLL_CFG_LOCK,
- GPCPLL_CFG_LOCK)) {
- nv_error(priv, "%s: timeout waiting for pllg lock\n", __func__);
+ if (nvkm_usec(device, 300,
+ if (nvkm_rd32(device, GPCPLL_CFG) & GPCPLL_CFG_LOCK)
+ break;
+ ) < 0)
return -ETIMEDOUT;
- }
/* switch to VCO mode */
- nv_mask(priv, SEL_VCO, 0, BIT(SEL_VCO_GPC2CLK_OUT_SHIFT));
+ nvkm_mask(device, SEL_VCO, 0, BIT(SEL_VCO_GPC2CLK_OUT_SHIFT));
/* restore out divider 1:1 */
- val = nv_rd32(priv, GPC2CLK_OUT);
+ val = nvkm_rd32(device, GPC2CLK_OUT);
val &= ~GPC2CLK_OUT_VCODIV_MASK;
udelay(2);
- nv_wr32(priv, GPC2CLK_OUT, val);
+ nvkm_wr32(device, GPC2CLK_OUT, val);
/* slide up to new NDIV */
- return allow_slide ? gk20a_pllg_slide(priv, priv->n) : 0;
+ return allow_slide ? gk20a_pllg_slide(clk, clk->n) : 0;
}
static int
-gk20a_pllg_program_mnp(struct gk20a_clk_priv *priv)
+gk20a_pllg_program_mnp(struct gk20a_clk *clk)
{
int err;
- err = _gk20a_pllg_program_mnp(priv, true);
+ err = _gk20a_pllg_program_mnp(clk, true);
if (err)
- err = _gk20a_pllg_program_mnp(priv, false);
+ err = _gk20a_pllg_program_mnp(clk, false);
return err;
}
static void
-gk20a_pllg_disable(struct gk20a_clk_priv *priv)
+gk20a_pllg_disable(struct gk20a_clk *clk)
{
+ struct nvkm_device *device = clk->base.subdev.device;
u32 val;
/* slide to VCO min */
- val = nv_rd32(priv, GPCPLL_CFG);
+ val = nvkm_rd32(device, GPCPLL_CFG);
if (val & GPCPLL_CFG_ENABLE) {
u32 coeff, m, n_lo;
- coeff = nv_rd32(priv, GPCPLL_COEFF);
+ coeff = nvkm_rd32(device, GPCPLL_COEFF);
m = (coeff >> GPCPLL_COEFF_M_SHIFT) & MASK(GPCPLL_COEFF_M_WIDTH);
- n_lo = DIV_ROUND_UP(m * priv->params->min_vco,
- priv->parent_rate / MHZ);
- gk20a_pllg_slide(priv, n_lo);
+ n_lo = DIV_ROUND_UP(m * clk->params->min_vco,
+ clk->parent_rate / MHZ);
+ gk20a_pllg_slide(clk, n_lo);
}
/* put PLL in bypass before disabling it */
- nv_mask(priv, SEL_VCO, BIT(SEL_VCO_GPC2CLK_OUT_SHIFT), 0);
+ nvkm_mask(device, SEL_VCO, BIT(SEL_VCO_GPC2CLK_OUT_SHIFT), 0);
- _gk20a_pllg_disable(priv);
+ _gk20a_pllg_disable(clk);
}
#define GK20A_CLK_GPC_MDIV 1000
-static struct nvkm_domain
-gk20a_domains[] = {
- { nv_clk_src_crystal, 0xff },
- { nv_clk_src_gpc, 0xff, 0, "core", GK20A_CLK_GPC_MDIV },
- { nv_clk_src_max }
-};
-
static struct nvkm_pstate
gk20a_pstates[] = {
{
@@ -560,87 +560,99 @@ gk20a_pstates[] = {
};
static int
-gk20a_clk_read(struct nvkm_clk *clk, enum nv_clk_src src)
+gk20a_clk_read(struct nvkm_clk *base, enum nv_clk_src src)
{
- struct gk20a_clk_priv *priv = (void *)clk;
+ struct gk20a_clk *clk = gk20a_clk(base);
+ struct nvkm_subdev *subdev = &clk->base.subdev;
+ struct nvkm_device *device = subdev->device;
switch (src) {
case nv_clk_src_crystal:
- return nv_device(clk)->crystal;
+ return device->crystal;
case nv_clk_src_gpc:
- gk20a_pllg_read_mnp(priv);
- return gk20a_pllg_calc_rate(priv) / GK20A_CLK_GPC_MDIV;
+ gk20a_pllg_read_mnp(clk);
+ return gk20a_pllg_calc_rate(clk) / GK20A_CLK_GPC_MDIV;
default:
- nv_error(clk, "invalid clock source %d\n", src);
+ nvkm_error(subdev, "invalid clock source %d\n", src);
return -EINVAL;
}
}
static int
-gk20a_clk_calc(struct nvkm_clk *clk, struct nvkm_cstate *cstate)
+gk20a_clk_calc(struct nvkm_clk *base, struct nvkm_cstate *cstate)
{
- struct gk20a_clk_priv *priv = (void *)clk;
+ struct gk20a_clk *clk = gk20a_clk(base);
- return gk20a_pllg_calc_mnp(priv, cstate->domain[nv_clk_src_gpc] *
+ return gk20a_pllg_calc_mnp(clk, cstate->domain[nv_clk_src_gpc] *
GK20A_CLK_GPC_MDIV);
}
static int
-gk20a_clk_prog(struct nvkm_clk *clk)
+gk20a_clk_prog(struct nvkm_clk *base)
{
- struct gk20a_clk_priv *priv = (void *)clk;
+ struct gk20a_clk *clk = gk20a_clk(base);
- return gk20a_pllg_program_mnp(priv);
+ return gk20a_pllg_program_mnp(clk);
}
static void
-gk20a_clk_tidy(struct nvkm_clk *clk)
+gk20a_clk_tidy(struct nvkm_clk *base)
{
}
-static int
-gk20a_clk_fini(struct nvkm_object *object, bool suspend)
+static void
+gk20a_clk_fini(struct nvkm_clk *base)
{
- struct gk20a_clk_priv *priv = (void *)object;
- int ret;
-
- ret = nvkm_clk_fini(&priv->base, false);
-
- gk20a_pllg_disable(priv);
-
- return ret;
+ struct gk20a_clk *clk = gk20a_clk(base);
+ gk20a_pllg_disable(clk);
}
static int
-gk20a_clk_init(struct nvkm_object *object)
+gk20a_clk_init(struct nvkm_clk *base)
{
- struct gk20a_clk_priv *priv = (void *)object;
+ struct gk20a_clk *clk = gk20a_clk(base);
+ struct nvkm_subdev *subdev = &clk->base.subdev;
+ struct nvkm_device *device = subdev->device;
int ret;
- nv_mask(priv, GPC2CLK_OUT, GPC2CLK_OUT_INIT_MASK, GPC2CLK_OUT_INIT_VAL);
-
- ret = nvkm_clk_init(&priv->base);
- if (ret)
- return ret;
+ nvkm_mask(device, GPC2CLK_OUT, GPC2CLK_OUT_INIT_MASK, GPC2CLK_OUT_INIT_VAL);
- ret = gk20a_clk_prog(&priv->base);
+ ret = gk20a_clk_prog(&clk->base);
if (ret) {
- nv_error(priv, "cannot initialize clock\n");
+ nvkm_error(subdev, "cannot initialize clock\n");
return ret;
}
return 0;
}
-static int
-gk20a_clk_ctor(struct nvkm_object *parent, struct nvkm_object *engine,
- struct nvkm_oclass *oclass, void *data, u32 size,
- struct nvkm_object **pobject)
+static const struct nvkm_clk_func
+gk20a_clk = {
+ .init = gk20a_clk_init,
+ .fini = gk20a_clk_fini,
+ .read = gk20a_clk_read,
+ .calc = gk20a_clk_calc,
+ .prog = gk20a_clk_prog,
+ .tidy = gk20a_clk_tidy,
+ .pstates = gk20a_pstates,
+ .nr_pstates = ARRAY_SIZE(gk20a_pstates),
+ .domains = {
+ { nv_clk_src_crystal, 0xff },
+ { nv_clk_src_gpc, 0xff, 0, "core", GK20A_CLK_GPC_MDIV },
+ { nv_clk_src_max }
+ }
+};
+
+int
+gk20a_clk_new(struct nvkm_device *device, int index, struct nvkm_clk **pclk)
{
- struct gk20a_clk_priv *priv;
- struct nouveau_platform_device *plat;
- int ret;
- int i;
+ struct nvkm_device_tegra *tdev = device->func->tegra(device);
+ struct gk20a_clk *clk;
+ int ret, i;
+
+ if (!(clk = kzalloc(sizeof(*clk), GFP_KERNEL)))
+ return -ENOMEM;
+ *pclk = &clk->base;
/* Finish initializing the pstates */
for (i = 0; i < ARRAY_SIZE(gk20a_pstates); i++) {
@@ -648,33 +660,11 @@ gk20a_clk_ctor(struct nvkm_object *parent, struct nvkm_object *engine,
gk20a_pstates[i].pstate = i + 1;
}
- ret = nvkm_clk_create(parent, engine, oclass, gk20a_domains,
- gk20a_pstates, ARRAY_SIZE(gk20a_pstates),
- true, &priv);
- *pobject = nv_object(priv);
- if (ret)
- return ret;
+ clk->params = &gk20a_pllg_params;
+ clk->parent_rate = clk_get_rate(tdev->clk);
- priv->params = &gk20a_pllg_params;
-
- plat = nv_device_to_platform(nv_device(parent));
- priv->parent_rate = clk_get_rate(plat->gpu->clk);
- nv_info(priv, "parent clock rate: %d Mhz\n", priv->parent_rate / MHZ);
-
- priv->base.read = gk20a_clk_read;
- priv->base.calc = gk20a_clk_calc;
- priv->base.prog = gk20a_clk_prog;
- priv->base.tidy = gk20a_clk_tidy;
- return 0;
+ ret = nvkm_clk_ctor(&gk20a_clk, device, index, true, &clk->base);
+ nvkm_info(&clk->base.subdev, "parent clock rate: %d Mhz\n",
+ clk->parent_rate / MHZ);
+ return ret;
}
-
-struct nvkm_oclass
-gk20a_clk_oclass = {
- .handle = NV_SUBDEV(CLK, 0xea),
- .ofuncs = &(struct nvkm_ofuncs) {
- .ctor = gk20a_clk_ctor,
- .dtor = _nvkm_subdev_dtor,
- .init = gk20a_clk_init,
- .fini = gk20a_clk_fini,
- },
-};