diff options
Diffstat (limited to 'drivers/gpu/drm/msm/adreno/a6xx_gmu.c')
| -rw-r--r-- | drivers/gpu/drm/msm/adreno/a6xx_gmu.c | 61 |
1 files changed, 32 insertions, 29 deletions
diff --git a/drivers/gpu/drm/msm/adreno/a6xx_gmu.c b/drivers/gpu/drm/msm/adreno/a6xx_gmu.c index 8bea8ef26f77..37927bdd6fbe 100644 --- a/drivers/gpu/drm/msm/adreno/a6xx_gmu.c +++ b/drivers/gpu/drm/msm/adreno/a6xx_gmu.c @@ -423,6 +423,20 @@ static int a6xx_gmu_gfx_rail_on(struct a6xx_gmu *gmu) return a6xx_gmu_set_oob(gmu, GMU_OOB_BOOT_SLUMBER); } +static void a6xx_gemnoc_workaround(struct a6xx_gmu *gmu) +{ + struct a6xx_gpu *a6xx_gpu = container_of(gmu, struct a6xx_gpu, gmu); + struct adreno_gpu *adreno_gpu = &a6xx_gpu->base; + + /* + * GEMNoC can power collapse whilst the GPU is being powered down, resulting + * in the power down sequence not being fully executed. That in turn can + * prevent CX_GDSC from collapsing. Assert Qactive to avoid this. + */ + if (adreno_is_a621(adreno_gpu) || adreno_is_7c3(adreno_gpu)) + gmu_write(gmu, REG_A6XX_GMU_AO_AHB_FENCE_CTRL, BIT(0)); +} + /* Let the GMU know that we are about to go into slumber */ static int a6xx_gmu_notify_slumber(struct a6xx_gmu *gmu) { @@ -456,6 +470,8 @@ static int a6xx_gmu_notify_slumber(struct a6xx_gmu *gmu) } out: + a6xx_gemnoc_workaround(gmu); + /* Put fence into allow mode */ gmu_write(gmu, REG_A6XX_GMU_AO_AHB_FENCE_CTRL, 0); return ret; @@ -466,9 +482,7 @@ static int a6xx_rpmh_start(struct a6xx_gmu *gmu) int ret; u32 val; - gmu_write(gmu, REG_A6XX_GMU_RSCC_CONTROL_REQ, 1 << 1); - /* Wait for the register to finish posting */ - wmb(); + gmu_write(gmu, REG_A6XX_GMU_RSCC_CONTROL_REQ, BIT(1)); ret = gmu_poll_timeout(gmu, REG_A6XX_GMU_RSCC_CONTROL_ACK, val, val & (1 << 1), 100, 10000); @@ -507,7 +521,7 @@ static void a6xx_rpmh_stop(struct a6xx_gmu *gmu) static inline void pdc_write(void __iomem *ptr, u32 offset, u32 value) { - msm_writel(value, ptr + (offset << 2)); + writel(value, ptr + (offset << 2)); } static void __iomem *a6xx_gmu_get_mmio(struct platform_device *pdev, @@ -527,8 +541,7 @@ static void a6xx_gmu_rpmh_init(struct a6xx_gmu *gmu) if (IS_ERR(pdcptr)) goto err; - if (adreno_is_a650(adreno_gpu) || - adreno_is_a660_family(adreno_gpu) || + if (adreno_is_a650_family(adreno_gpu) || adreno_is_a7xx(adreno_gpu)) pdc_in_aop = true; else if (adreno_is_a618(adreno_gpu) || adreno_is_a640_family(adreno_gpu)) @@ -769,8 +782,9 @@ static int a6xx_gmu_fw_start(struct a6xx_gmu *gmu, unsigned int state) { struct a6xx_gpu *a6xx_gpu = container_of(gmu, struct a6xx_gpu, gmu); struct adreno_gpu *adreno_gpu = &a6xx_gpu->base; + const struct a6xx_info *a6xx_info = adreno_gpu->info->a6xx; u32 fence_range_lower, fence_range_upper; - u32 chipid, chipid_min = 0; + u32 chipid = 0; int ret; /* Vote veto for FAL10 */ @@ -830,27 +844,8 @@ static int a6xx_gmu_fw_start(struct a6xx_gmu *gmu, unsigned int state) */ gmu_write(gmu, REG_A6XX_GMU_CM3_CFG, 0x4052); - /* NOTE: A730 may also fall in this if-condition with a future GMU fw update. */ - if (adreno_is_a7xx(adreno_gpu) && !adreno_is_a730(adreno_gpu)) { - /* A7xx GPUs have obfuscated chip IDs. Use constant maj = 7 */ - chipid = FIELD_PREP(GENMASK(31, 24), 0x7); - - /* - * The min part has a 1-1 mapping for each GPU SKU. - * This chipid that the GMU expects corresponds to the "GENX_Y_Z" naming, - * where X = major, Y = minor, Z = patchlevel, e.g. GEN7_2_1 for prod A740. - */ - if (adreno_is_a740(adreno_gpu)) - chipid_min = 2; - else if (adreno_is_a750(adreno_gpu)) - chipid_min = 9; - else - return -EINVAL; - - chipid |= FIELD_PREP(GENMASK(23, 16), chipid_min); - - /* Get the patchid (which may vary) from the device tree */ - chipid |= FIELD_PREP(GENMASK(15, 8), adreno_patchid(adreno_gpu)); + if (a6xx_info->gmu_chipid) { + chipid = a6xx_info->gmu_chipid; } else { /* * Note that the GMU has a slightly different layout for @@ -966,6 +961,8 @@ static void a6xx_gmu_force_off(struct a6xx_gmu *gmu) /* Force off SPTP in case the GMU is managing it */ a6xx_sptprac_disable(gmu); + a6xx_gemnoc_workaround(gmu); + /* Make sure there are no outstanding RPMh votes */ a6xx_gmu_rpmh_off(gmu); @@ -1329,7 +1326,13 @@ static int a6xx_gmu_rpmh_arc_votes_init(struct device *dev, u32 *votes, if (!pri_count) return -EINVAL; - sec = cmd_db_read_aux_data("mx.lvl", &sec_count); + /* + * Some targets have a separate gfx mxc rail. So try to read that first and then fall back + * to regular mx rail if it is missing + */ + sec = cmd_db_read_aux_data("gmxc.lvl", &sec_count); + if (IS_ERR(sec) && sec != ERR_PTR(-EPROBE_DEFER)) + sec = cmd_db_read_aux_data("mx.lvl", &sec_count); if (IS_ERR(sec)) return PTR_ERR(sec); |