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authorDave Airlie <airlied@redhat.com>2012-10-03 03:26:15 (GMT)
committerDave Airlie <airlied@redhat.com>2012-10-03 03:26:15 (GMT)
commit268d28371cd326be4dfcd7eba5917bf4b9d30c8f (patch)
treefec4f9e98bde15301b5d5338038a9a31f7555456 /drivers/gpu/drm/nouveau/nouveau_calc.c
parentdf86b5765a48d5f557489577652bd6df145b0e1b (diff)
parentb9f10852fcb1f09369d931dcbfbaad89ad1da4ad (diff)
downloadlinux-268d28371cd326be4dfcd7eba5917bf4b9d30c8f.tar.xz
Merge branch 'drm-nouveau-next' of git://anongit.freedesktop.org/git/nouveau/linux-2.6 into drm-next
This is a major rework of the nouveau driver core, to reflect more closely how the hw is used and to make it easier to implement newer features now that the GPUs are more clearly understood than when nouveau started. It also contains a few other bits: thermal patches nv41/44 pcie gart fixes i2c unregistering fixes. * 'drm-nouveau-next' of git://anongit.freedesktop.org/git/nouveau/linux-2.6: (191 commits) drm/nv98/crypt: fix fuc build with latest envyas drm/nouveau/devinit: fixup various issues with subdev ctor/init ordering drm/nv41/vm: fix and enable use of "real" pciegart drm/nv44/vm: fix and enable use of "real" pciegart drm/nv04/dmaobj: fixup vm target handling in preparation for nv4x pcie drm/nouveau: store supported dma mask in vmmgr drm/nvc0/ibus: initial implementation of subdev drm/nouveau/therm: add support for fan-control modes drm/nouveau/hwmon: rename pwm0* to pmw1* to follow hwmon's rules drm/nouveau/therm: calculate the pwm divisor on nv50+ drm/nouveau/fan: rewrite the fan tachometer driver to get more precision, faster drm/nouveau/therm: move thermal-related functions to the therm subdev drm/nouveau/bios: parse the pwm divisor from the perf table drm/nouveau/therm: use the EXTDEV table to detect i2c monitoring devices drm/nouveau/therm: rework thermal table parsing drm/nouveau/gpio: expose the PWM/TOGGLE parameter found in the gpio vbios table drm/nouveau: fix pm initialization order drm/nouveau/bios: check that fixed tvdac gpio data is valid before using it drm/nouveau: log channel debug/error messages from client object rather than drm client drm/nouveau: have drm debugging macros build on top of core macros ... Conflicts: drivers/gpu/drm/nouveau/nouveau_dp.c
Diffstat (limited to 'drivers/gpu/drm/nouveau/nouveau_calc.c')
-rw-r--r--drivers/gpu/drm/nouveau/nouveau_calc.c234
1 files changed, 10 insertions, 224 deletions
diff --git a/drivers/gpu/drm/nouveau/nouveau_calc.c b/drivers/gpu/drm/nouveau/nouveau_calc.c
index dad96cc..7795952 100644
--- a/drivers/gpu/drm/nouveau/nouveau_calc.c
+++ b/drivers/gpu/drm/nouveau/nouveau_calc.c
@@ -22,7 +22,8 @@
*/
#include "drmP.h"
-#include "nouveau_drv.h"
+#include "nouveau_drm.h"
+#include "nouveau_reg.h"
#include "nouveau_hw.h"
/****************************************************************************\
@@ -195,12 +196,13 @@ static void
nv04_update_arb(struct drm_device *dev, int VClk, int bpp,
int *burst, int *lwm)
{
- struct drm_nouveau_private *dev_priv = dev->dev_private;
+ struct nouveau_drm *drm = nouveau_drm(dev);
+ struct nouveau_device *device = nouveau_dev(dev);
struct nv_fifo_info fifo_data;
struct nv_sim_state sim_data;
int MClk = nouveau_hw_get_clock(dev, PLL_MEMORY);
int NVClk = nouveau_hw_get_clock(dev, PLL_CORE);
- uint32_t cfg1 = nvReadFB(dev, NV04_PFB_CFG1);
+ uint32_t cfg1 = nv_rd32(device, NV04_PFB_CFG1);
sim_data.pclk_khz = VClk;
sim_data.mclk_khz = MClk;
@@ -218,13 +220,13 @@ nv04_update_arb(struct drm_device *dev, int VClk, int bpp,
sim_data.mem_latency = 3;
sim_data.mem_page_miss = 10;
} else {
- sim_data.memory_type = nvReadFB(dev, NV04_PFB_CFG0) & 0x1;
- sim_data.memory_width = (nvReadEXTDEV(dev, NV_PEXTDEV_BOOT_0) & 0x10) ? 128 : 64;
+ sim_data.memory_type = nv_rd32(device, NV04_PFB_CFG0) & 0x1;
+ sim_data.memory_width = (nv_rd32(device, NV_PEXTDEV_BOOT_0) & 0x10) ? 128 : 64;
sim_data.mem_latency = cfg1 & 0xf;
sim_data.mem_page_miss = ((cfg1 >> 4) & 0xf) + ((cfg1 >> 31) & 0x1);
}
- if (dev_priv->card_type == NV_04)
+ if (nv_device(drm->device)->card_type == NV_04)
nv04_calc_arb(&fifo_data, &sim_data);
else
nv10_calc_arb(&fifo_data, &sim_data);
@@ -249,9 +251,9 @@ nv20_update_arb(int *burst, int *lwm)
void
nouveau_calc_arb(struct drm_device *dev, int vclk, int bpp, int *burst, int *lwm)
{
- struct drm_nouveau_private *dev_priv = dev->dev_private;
+ struct nouveau_drm *drm = nouveau_drm(dev);
- if (dev_priv->card_type < NV_20)
+ if (nv_device(drm->device)->card_type < NV_20)
nv04_update_arb(dev, vclk, bpp, burst, lwm);
else if ((dev->pci_device & 0xfff0) == 0x0240 /*CHIPSET_C51*/ ||
(dev->pci_device & 0xfff0) == 0x03d0 /*CHIPSET_C512*/) {
@@ -260,219 +262,3 @@ nouveau_calc_arb(struct drm_device *dev, int vclk, int bpp, int *burst, int *lwm
} else
nv20_update_arb(burst, lwm);
}
-
-static int
-getMNP_single(struct drm_device *dev, struct pll_lims *pll_lim, int clk,
- struct nouveau_pll_vals *bestpv)
-{
- /* Find M, N and P for a single stage PLL
- *
- * Note that some bioses (NV3x) have lookup tables of precomputed MNP
- * values, but we're too lazy to use those atm
- *
- * "clk" parameter in kHz
- * returns calculated clock
- */
- struct drm_nouveau_private *dev_priv = dev->dev_private;
- int cv = dev_priv->vbios.chip_version;
- int minvco = pll_lim->vco1.minfreq, maxvco = pll_lim->vco1.maxfreq;
- int minM = pll_lim->vco1.min_m, maxM = pll_lim->vco1.max_m;
- int minN = pll_lim->vco1.min_n, maxN = pll_lim->vco1.max_n;
- int minU = pll_lim->vco1.min_inputfreq;
- int maxU = pll_lim->vco1.max_inputfreq;
- int minP = pll_lim->max_p ? pll_lim->min_p : 0;
- int maxP = pll_lim->max_p ? pll_lim->max_p : pll_lim->max_usable_log2p;
- int crystal = pll_lim->refclk;
- int M, N, thisP, P;
- int clkP, calcclk;
- int delta, bestdelta = INT_MAX;
- int bestclk = 0;
-
- /* this division verified for nv20, nv18, nv28 (Haiku), and nv34 */
- /* possibly correlated with introduction of 27MHz crystal */
- if (dev_priv->card_type < NV_50) {
- if (cv < 0x17 || cv == 0x1a || cv == 0x20) {
- if (clk > 250000)
- maxM = 6;
- if (clk > 340000)
- maxM = 2;
- } else if (cv < 0x40) {
- if (clk > 150000)
- maxM = 6;
- if (clk > 200000)
- maxM = 4;
- if (clk > 340000)
- maxM = 2;
- }
- }
-
- P = pll_lim->max_p ? maxP : (1 << maxP);
- if ((clk * P) < minvco) {
- minvco = clk * maxP;
- maxvco = minvco * 2;
- }
-
- if (clk + clk/200 > maxvco) /* +0.5% */
- maxvco = clk + clk/200;
-
- /* NV34 goes maxlog2P->0, NV20 goes 0->maxlog2P */
- for (thisP = minP; thisP <= maxP; thisP++) {
- P = pll_lim->max_p ? thisP : (1 << thisP);
- clkP = clk * P;
-
- if (clkP < minvco)
- continue;
- if (clkP > maxvco)
- return bestclk;
-
- for (M = minM; M <= maxM; M++) {
- if (crystal/M < minU)
- return bestclk;
- if (crystal/M > maxU)
- continue;
-
- /* add crystal/2 to round better */
- N = (clkP * M + crystal/2) / crystal;
-
- if (N < minN)
- continue;
- if (N > maxN)
- break;
-
- /* more rounding additions */
- calcclk = ((N * crystal + P/2) / P + M/2) / M;
- delta = abs(calcclk - clk);
- /* we do an exhaustive search rather than terminating
- * on an optimality condition...
- */
- if (delta < bestdelta) {
- bestdelta = delta;
- bestclk = calcclk;
- bestpv->N1 = N;
- bestpv->M1 = M;
- bestpv->log2P = thisP;
- if (delta == 0) /* except this one */
- return bestclk;
- }
- }
- }
-
- return bestclk;
-}
-
-static int
-getMNP_double(struct drm_device *dev, struct pll_lims *pll_lim, int clk,
- struct nouveau_pll_vals *bestpv)
-{
- /* Find M, N and P for a two stage PLL
- *
- * Note that some bioses (NV30+) have lookup tables of precomputed MNP
- * values, but we're too lazy to use those atm
- *
- * "clk" parameter in kHz
- * returns calculated clock
- */
- struct drm_nouveau_private *dev_priv = dev->dev_private;
- int chip_version = dev_priv->vbios.chip_version;
- int minvco1 = pll_lim->vco1.minfreq, maxvco1 = pll_lim->vco1.maxfreq;
- int minvco2 = pll_lim->vco2.minfreq, maxvco2 = pll_lim->vco2.maxfreq;
- int minU1 = pll_lim->vco1.min_inputfreq, minU2 = pll_lim->vco2.min_inputfreq;
- int maxU1 = pll_lim->vco1.max_inputfreq, maxU2 = pll_lim->vco2.max_inputfreq;
- int minM1 = pll_lim->vco1.min_m, maxM1 = pll_lim->vco1.max_m;
- int minN1 = pll_lim->vco1.min_n, maxN1 = pll_lim->vco1.max_n;
- int minM2 = pll_lim->vco2.min_m, maxM2 = pll_lim->vco2.max_m;
- int minN2 = pll_lim->vco2.min_n, maxN2 = pll_lim->vco2.max_n;
- int maxlog2P = pll_lim->max_usable_log2p;
- int crystal = pll_lim->refclk;
- bool fixedgain2 = (minM2 == maxM2 && minN2 == maxN2);
- int M1, N1, M2, N2, log2P;
- int clkP, calcclk1, calcclk2, calcclkout;
- int delta, bestdelta = INT_MAX;
- int bestclk = 0;
-
- int vco2 = (maxvco2 - maxvco2/200) / 2;
- for (log2P = 0; clk && log2P < maxlog2P && clk <= (vco2 >> log2P); log2P++)
- ;
- clkP = clk << log2P;
-
- if (maxvco2 < clk + clk/200) /* +0.5% */
- maxvco2 = clk + clk/200;
-
- for (M1 = minM1; M1 <= maxM1; M1++) {
- if (crystal/M1 < minU1)
- return bestclk;
- if (crystal/M1 > maxU1)
- continue;
-
- for (N1 = minN1; N1 <= maxN1; N1++) {
- calcclk1 = crystal * N1 / M1;
- if (calcclk1 < minvco1)
- continue;
- if (calcclk1 > maxvco1)
- break;
-
- for (M2 = minM2; M2 <= maxM2; M2++) {
- if (calcclk1/M2 < minU2)
- break;
- if (calcclk1/M2 > maxU2)
- continue;
-
- /* add calcclk1/2 to round better */
- N2 = (clkP * M2 + calcclk1/2) / calcclk1;
- if (N2 < minN2)
- continue;
- if (N2 > maxN2)
- break;
-
- if (!fixedgain2) {
- if (chip_version < 0x60)
- if (N2/M2 < 4 || N2/M2 > 10)
- continue;
-
- calcclk2 = calcclk1 * N2 / M2;
- if (calcclk2 < minvco2)
- break;
- if (calcclk2 > maxvco2)
- continue;
- } else
- calcclk2 = calcclk1;
-
- calcclkout = calcclk2 >> log2P;
- delta = abs(calcclkout - clk);
- /* we do an exhaustive search rather than terminating
- * on an optimality condition...
- */
- if (delta < bestdelta) {
- bestdelta = delta;
- bestclk = calcclkout;
- bestpv->N1 = N1;
- bestpv->M1 = M1;
- bestpv->N2 = N2;
- bestpv->M2 = M2;
- bestpv->log2P = log2P;
- if (delta == 0) /* except this one */
- return bestclk;
- }
- }
- }
- }
-
- return bestclk;
-}
-
-int
-nouveau_calc_pll_mnp(struct drm_device *dev, struct pll_lims *pll_lim, int clk,
- struct nouveau_pll_vals *pv)
-{
- int outclk;
-
- if (!pll_lim->vco2.maxfreq)
- outclk = getMNP_single(dev, pll_lim, clk, pv);
- else
- outclk = getMNP_double(dev, pll_lim, clk, pv);
-
- if (!outclk)
- NV_ERROR(dev, "Could not find a compatible set of PLL values\n");
-
- return outclk;
-}