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author | Felipe Contreras <felipe.contreras@gmail.com> | 2010-11-10 12:12:19 -0600 |
---|---|---|
committer | Omar Ramirez Luna <omar.ramirez@ti.com> | 2010-11-10 18:34:44 -0600 |
commit | 1cf3fb2d359a87880a6a6e0cb25b2ec2d493b119 (patch) | |
tree | c2dd70ce07ab0b80230c9c83cb0a614574cfedb3 /drivers/staging/tidspbridge | |
parent | d0b345f3ee03a7e8823dd3f8dfbb48aaeeac7c89 (diff) | |
download | linux-stable-1cf3fb2d359a87880a6a6e0cb25b2ec2d493b119.tar.gz linux-stable-1cf3fb2d359a87880a6a6e0cb25b2ec2d493b119.tar.bz2 linux-stable-1cf3fb2d359a87880a6a6e0cb25b2ec2d493b119.zip |
Revert "staging: tidspbridge - move shared memory iommu maps to tiomap3430.c"
This reverts commit 0c10e91b6cc9d1c6a23e9eed3e0653f30b6eb3d3.
Signed-off-by: Felipe Contreras <felipe.contreras@gmail.com>
Signed-off-by: Omar Ramirez Luna <omar.ramirez@ti.com>
Diffstat (limited to 'drivers/staging/tidspbridge')
-rw-r--r-- | drivers/staging/tidspbridge/core/_tiomap.h | 13 | ||||
-rw-r--r-- | drivers/staging/tidspbridge/core/io_sm.c | 125 | ||||
-rw-r--r-- | drivers/staging/tidspbridge/core/tiomap3430.c | 135 | ||||
-rw-r--r-- | drivers/staging/tidspbridge/core/tiomap_io.c | 12 |
4 files changed, 146 insertions, 139 deletions
diff --git a/drivers/staging/tidspbridge/core/_tiomap.h b/drivers/staging/tidspbridge/core/_tiomap.h index c1bf95d756b3..a42c3931fc7e 100644 --- a/drivers/staging/tidspbridge/core/_tiomap.h +++ b/drivers/staging/tidspbridge/core/_tiomap.h @@ -308,18 +308,6 @@ static const struct bpwr_clk_t bpwr_clks[] = { #define CLEAR_BIT_INDEX(reg, index) (reg &= ~(1 << (index))) -struct shm_segs { - u32 seg0_da; - u32 seg0_pa; - u32 seg0_va; - u32 seg0_size; - u32 seg1_da; - u32 seg1_pa; - u32 seg1_va; - u32 seg1_size; -}; - - /* This Bridge driver's device context: */ struct bridge_dev_context { struct dev_object *hdev_obj; /* Handle to Bridge device object. */ @@ -343,7 +331,6 @@ struct bridge_dev_context { struct omap_mbox *mbox; /* Mail box handle */ struct iommu *dsp_mmu; /* iommu for iva2 handler */ - struct shm_segs sh_s; struct cfg_hostres *resources; /* Host Resources */ /* diff --git a/drivers/staging/tidspbridge/core/io_sm.c b/drivers/staging/tidspbridge/core/io_sm.c index 56856ad54fec..842b8dbc441a 100644 --- a/drivers/staging/tidspbridge/core/io_sm.c +++ b/drivers/staging/tidspbridge/core/io_sm.c @@ -291,7 +291,7 @@ int bridge_io_on_loaded(struct io_mgr *hio_mgr) struct cod_manager *cod_man; struct chnl_mgr *hchnl_mgr; struct msg_mgr *hmsg_mgr; - struct shm_segs *sm_sg; + struct iommu *mmu; u32 ul_shm_base; u32 ul_shm_base_offset; u32 ul_shm_limit; @@ -317,6 +317,14 @@ int bridge_io_on_loaded(struct io_mgr *hio_mgr) u32 shm0_end; u32 ul_dyn_ext_base; u32 ul_seg1_size = 0; + u32 pa_curr = 0; + u32 va_curr = 0; + u32 gpp_va_curr = 0; + u32 num_bytes = 0; + u32 all_bits = 0; + u32 page_size[] = { HW_PAGE_SIZE16MB, HW_PAGE_SIZE1MB, + HW_PAGE_SIZE64KB, HW_PAGE_SIZE4KB + }; status = dev_get_bridge_context(hio_mgr->hdev_obj, &pbridge_context); if (!pbridge_context) { @@ -329,7 +337,19 @@ int bridge_io_on_loaded(struct io_mgr *hio_mgr) status = -EFAULT; goto func_end; } - sm_sg = &pbridge_context->sh_s; + mmu = pbridge_context->dsp_mmu; + + if (mmu) + iommu_put(mmu); + mmu = iommu_get("iva2"); + + if (IS_ERR_OR_NULL(mmu)) { + dev_err(bridge, "iommu_get failed!\n"); + pbridge_context->dsp_mmu = NULL; + status = -EFAULT; + goto func_end; + } + pbridge_context->dsp_mmu = mmu; status = dev_get_cod_mgr(hio_mgr->hdev_obj, &cod_man); if (!cod_man) { @@ -465,14 +485,74 @@ int bridge_io_on_loaded(struct io_mgr *hio_mgr) if (status) goto func_end; - sm_sg->seg1_pa = ul_gpp_pa; - sm_sg->seg1_da = ul_dyn_ext_base; - sm_sg->seg1_va = ul_gpp_va; - sm_sg->seg1_size = ul_seg1_size; - sm_sg->seg0_pa = ul_gpp_pa + ul_pad_size + ul_seg1_size; - sm_sg->seg0_da = ul_dsp_va; - sm_sg->seg0_va = ul_gpp_va + ul_pad_size + ul_seg1_size; - sm_sg->seg0_size = ul_seg_size; + pa_curr = ul_gpp_pa; + va_curr = ul_dyn_ext_base * hio_mgr->word_size; + gpp_va_curr = ul_gpp_va; + num_bytes = ul_seg1_size; + + va_curr = iommu_kmap(mmu, va_curr, pa_curr, num_bytes, + IOVMF_ENDIAN_LITTLE | IOVMF_ELSZ_32); + if (IS_ERR_VALUE(va_curr)) { + status = (int)va_curr; + goto func_end; + } + + pa_curr += ul_pad_size + num_bytes; + va_curr += ul_pad_size + num_bytes; + gpp_va_curr += ul_pad_size + num_bytes; + + /* Configure the TLB entries for the next cacheable segment */ + num_bytes = ul_seg_size; + va_curr = ul_dsp_va * hio_mgr->word_size; + while (num_bytes) { + /* + * To find the max. page size with which both PA & VA are + * aligned. + */ + all_bits = pa_curr | va_curr; + dev_dbg(bridge, "all_bits for Seg1 %x, pa_curr %x, " + "va_curr %x, num_bytes %x\n", all_bits, pa_curr, + va_curr, num_bytes); + for (i = 0; i < 4; i++) { + if (!(num_bytes >= page_size[i]) || + !((all_bits & (page_size[i] - 1)) == 0)) + continue; + if (ndx < MAX_LOCK_TLB_ENTRIES) { + /* + * This is the physical address written to + * DSP MMU. + */ + ae_proc[ndx].ul_gpp_pa = pa_curr; + /* + * This is the virtual uncached ioremapped + * address!!! + */ + ae_proc[ndx].ul_gpp_va = gpp_va_curr; + ae_proc[ndx].ul_dsp_va = + va_curr / hio_mgr->word_size; + ae_proc[ndx].ul_size = page_size[i]; + ae_proc[ndx].endianism = HW_LITTLE_ENDIAN; + ae_proc[ndx].elem_size = HW_ELEM_SIZE16BIT; + ae_proc[ndx].mixed_mode = HW_MMU_CPUES; + dev_dbg(bridge, "shm MMU TLB entry PA %x" + " VA %x DSP_VA %x Size %x\n", + ae_proc[ndx].ul_gpp_pa, + ae_proc[ndx].ul_gpp_va, + ae_proc[ndx].ul_dsp_va * + hio_mgr->word_size, page_size[i]); + ndx++; + } + pa_curr += page_size[i]; + va_curr += page_size[i]; + gpp_va_curr += page_size[i]; + num_bytes -= page_size[i]; + /* + * Don't try smaller sizes. Hopefully we have reached + * an address aligned to a bigger page size. + */ + break; + } + } /* * Copy remaining entries from CDB. All entries are 1 MB and @@ -519,6 +599,24 @@ int bridge_io_on_loaded(struct io_mgr *hio_mgr) goto func_end; } + /* Map the L4 peripherals */ + i = 0; + while (l4_peripheral_table[i].phys_addr) { + status = iommu_kmap(mmu, l4_peripheral_table[i]. + dsp_virt_addr, l4_peripheral_table[i].phys_addr, + PAGE_SIZE, IOVMF_ENDIAN_LITTLE | IOVMF_ELSZ_32); + if (IS_ERR_VALUE(status)) + break; + i++; + } + if (IS_ERR_VALUE(status)) { + while (i--) + iommu_kunmap(mmu, l4_peripheral_table[i]. + dsp_virt_addr); + goto func_end; + } + status = 0; + for (i = ndx; i < BRDIOCTL_NUMOFMMUTLB; i++) { ae_proc[i].ul_dsp_va = 0; ae_proc[i].ul_gpp_pa = 0; @@ -541,12 +639,12 @@ int bridge_io_on_loaded(struct io_mgr *hio_mgr) status = -EFAULT; goto func_end; } else { - if (sm_sg->seg0_da > ul_shm_base) { + if (ae_proc[0].ul_dsp_va > ul_shm_base) { status = -EPERM; goto func_end; } /* ul_shm_base may not be at ul_dsp_va address */ - ul_shm_base_offset = (ul_shm_base - sm_sg->seg0_da) * + ul_shm_base_offset = (ul_shm_base - ae_proc[0].ul_dsp_va) * hio_mgr->word_size; /* * bridge_dev_ctrl() will set dev context dsp-mmu info. In @@ -570,7 +668,8 @@ int bridge_io_on_loaded(struct io_mgr *hio_mgr) goto func_end; } /* Register SM */ - status = register_shm_segs(hio_mgr, cod_man, sm_sg->seg0_pa); + status = + register_shm_segs(hio_mgr, cod_man, ae_proc[0].ul_gpp_pa); } hio_mgr->shared_mem = (struct shm *)ul_shm_base; diff --git a/drivers/staging/tidspbridge/core/tiomap3430.c b/drivers/staging/tidspbridge/core/tiomap3430.c index 7ab272ca643d..ec85529efee0 100644 --- a/drivers/staging/tidspbridge/core/tiomap3430.c +++ b/drivers/staging/tidspbridge/core/tiomap3430.c @@ -301,7 +301,8 @@ static int bridge_brd_monitor(struct bridge_dev_context *dev_ctxt) (*pdata->dsp_cm_write)(OMAP34XX_CLKSTCTRL_DISABLE_AUTO, OMAP3430_IVA2_MOD, OMAP2_CM_CLKSTCTRL); } - + (*pdata->dsp_prm_rmw_bits)(OMAP3430_RST2_IVA2_MASK, 0, + OMAP3430_IVA2_MOD, OMAP2_RM_RSTCTRL); dsp_clk_enable(DSP_CLK_IVA2); /* set the device state to IDLE */ @@ -372,17 +373,15 @@ static int bridge_brd_start(struct bridge_dev_context *dev_ctxt, { int status = 0; struct bridge_dev_context *dev_context = dev_ctxt; - struct iommu *mmu = NULL; - struct shm_segs *sm_sg; - int l4_i = 0, tlb_i = 0; - u32 sg0_da = 0, sg1_da = 0; - struct bridge_ioctl_extproc *tlb = dev_context->atlb_entry; + struct iommu *mmu; u32 dw_sync_addr = 0; u32 ul_shm_base; /* Gpp Phys SM base addr(byte) */ u32 ul_shm_base_virt; /* Dsp Virt SM base addr */ u32 ul_tlb_base_virt; /* Base of MMU TLB entry */ /* Offset of shm_base_virt from tlb_base_virt */ u32 ul_shm_offset_virt; + s32 entry_ndx; + s32 itmp_entry_ndx = 0; /* DSP-MMU TLB entry base address */ struct cfg_hostres *resources = NULL; u32 temp; u32 ul_dsp_clk_rate; @@ -394,6 +393,7 @@ static int bridge_brd_start(struct bridge_dev_context *dev_ctxt, struct omap_dsp_platform_data *pdata = omap_dspbridge_dev->dev.platform_data; + mmu = dev_context->dsp_mmu; /* The device context contains all the mmu setup info from when the * last dsp base image was loaded. The first entry is always * SHMMEM base. */ @@ -403,12 +403,12 @@ static int bridge_brd_start(struct bridge_dev_context *dev_ctxt, ul_shm_base_virt *= DSPWORDSIZE; DBC_ASSERT(ul_shm_base_virt != 0); /* DSP Virtual address */ - ul_tlb_base_virt = dev_context->sh_s.seg0_da; + ul_tlb_base_virt = dev_context->atlb_entry[0].ul_dsp_va; DBC_ASSERT(ul_tlb_base_virt <= ul_shm_base_virt); ul_shm_offset_virt = ul_shm_base_virt - (ul_tlb_base_virt * DSPWORDSIZE); /* Kernel logical address */ - ul_shm_base = dev_context->sh_s.seg0_va + ul_shm_offset_virt; + ul_shm_base = dev_context->atlb_entry[0].ul_gpp_va + ul_shm_offset_virt; DBC_ASSERT(ul_shm_base != 0); /* 2nd wd is used as sync field */ @@ -443,70 +443,25 @@ static int bridge_brd_start(struct bridge_dev_context *dev_ctxt, OMAP343X_CONTROL_IVA2_BOOTMOD)); } } - - if (!status) { - (*pdata->dsp_prm_rmw_bits)(OMAP3430_RST2_IVA2_MASK, 0, - OMAP3430_IVA2_MOD, OMAP2_RM_RSTCTRL); - mmu = dev_context->dsp_mmu; - if (mmu) - iommu_put(mmu); - mmu = iommu_get("iva2"); - if (IS_ERR(mmu)) { - dev_err(bridge, "iommu_get failed!\n"); - dev_context->dsp_mmu = NULL; - status = (int)mmu; - } - } if (!status) { - dev_context->dsp_mmu = mmu; - sm_sg = &dev_context->sh_s; - sg0_da = iommu_kmap(mmu, sm_sg->seg0_da, sm_sg->seg0_pa, - sm_sg->seg0_size, IOVMF_ENDIAN_LITTLE | IOVMF_ELSZ_32); - if (IS_ERR_VALUE(sg0_da)) { - status = (int)sg0_da; - sg0_da = 0; - } - } - if (!status) { - sg1_da = iommu_kmap(mmu, sm_sg->seg1_da, sm_sg->seg1_pa, - sm_sg->seg1_size, IOVMF_ENDIAN_LITTLE | IOVMF_ELSZ_32); - if (IS_ERR_VALUE(sg1_da)) { - status = (int)sg1_da; - sg1_da = 0; - } - } - if (!status) { - u32 da; - for (tlb_i = 0; tlb_i < BRDIOCTL_NUMOFMMUTLB; tlb_i++) { - if (!tlb[tlb_i].ul_gpp_pa) + /* Only make TLB entry if both addresses are non-zero */ + for (entry_ndx = 0; entry_ndx < BRDIOCTL_NUMOFMMUTLB; + entry_ndx++) { + struct bridge_ioctl_extproc *e = &dev_context->atlb_entry[entry_ndx]; + + if (!e->ul_gpp_pa || !e->ul_dsp_va) continue; - dev_dbg(bridge, "IOMMU %d GppPa: 0x%x DspVa 0x%x Size" - " 0x%x\n", tlb_i, tlb[tlb_i].ul_gpp_pa, - tlb[tlb_i].ul_dsp_va, tlb[tlb_i].ul_size); + dev_dbg(bridge, + "MMU %d, pa: 0x%x, va: 0x%x, size: 0x%x", + itmp_entry_ndx, + e->ul_gpp_pa, + e->ul_dsp_va, + e->ul_size); - da = iommu_kmap(mmu, tlb[tlb_i].ul_dsp_va, - tlb[tlb_i].ul_gpp_pa, PAGE_SIZE, + iommu_kmap(mmu, e->ul_dsp_va, e->ul_gpp_pa, e->ul_size, IOVMF_ENDIAN_LITTLE | IOVMF_ELSZ_32); - if (IS_ERR_VALUE(da)) { - status = (int)da; - break; - } - } - } - if (!status) { - u32 da; - l4_i = 0; - while (l4_peripheral_table[l4_i].phys_addr) { - da = iommu_kmap(mmu, l4_peripheral_table[l4_i]. - dsp_virt_addr, l4_peripheral_table[l4_i]. - phys_addr, PAGE_SIZE, - IOVMF_ENDIAN_LITTLE | IOVMF_ELSZ_32); - if (IS_ERR_VALUE(da)) { - status = (int)da; - break; - } - l4_i++; + itmp_entry_ndx++; } } @@ -619,23 +574,11 @@ static int bridge_brd_start(struct bridge_dev_context *dev_ctxt, /* update board state */ dev_context->dw_brd_state = BRD_RUNNING; - return 0; + /* (void)chnlsm_enable_interrupt(dev_context); */ } else { dev_context->dw_brd_state = BRD_UNKNOWN; } } - - while (tlb_i--) { - if (!tlb[tlb_i].ul_gpp_pa) - continue; - iommu_kunmap(mmu, tlb[tlb_i].ul_gpp_va); - } - while (l4_i--) - iommu_kunmap(mmu, l4_peripheral_table[l4_i].dsp_virt_addr); - if (sg0_da) - iommu_kunmap(mmu, sg0_da); - if (sg1_da) - iommu_kunmap(mmu, sg1_da); return status; } @@ -653,8 +596,6 @@ static int bridge_brd_stop(struct bridge_dev_context *dev_ctxt) struct bridge_dev_context *dev_context = dev_ctxt; struct pg_table_attrs *pt_attrs; u32 dsp_pwr_state; - int i; - struct bridge_ioctl_extproc *tlb = dev_context->atlb_entry; struct omap_dsp_platform_data *pdata = omap_dspbridge_dev->dev.platform_data; @@ -698,37 +639,17 @@ static int bridge_brd_stop(struct bridge_dev_context *dev_ctxt) memset((u8 *) pt_attrs->pg_info, 0x00, (pt_attrs->l2_num_pages * sizeof(struct page_info))); } - /* Reset DSP */ - (*pdata->dsp_prm_rmw_bits)(OMAP3430_RST1_IVA2_MASK, - OMAP3430_RST1_IVA2_MASK, OMAP3430_IVA2_MOD, OMAP2_RM_RSTCTRL); - /* Disable the mailbox interrupts */ if (dev_context->mbox) { omap_mbox_disable_irq(dev_context->mbox, IRQ_RX); omap_mbox_put(dev_context->mbox); dev_context->mbox = NULL; } - if (dev_context->dsp_mmu) { - pr_err("Proc stop mmu if statement\n"); - for (i = 0; i < BRDIOCTL_NUMOFMMUTLB; i++) { - if (!tlb[i].ul_gpp_pa) - continue; - iommu_kunmap(dev_context->dsp_mmu, tlb[i].ul_gpp_va); - } - i = 0; - while (l4_peripheral_table[i].phys_addr) { - iommu_kunmap(dev_context->dsp_mmu, - l4_peripheral_table[i].dsp_virt_addr); - i++; - } - iommu_kunmap(dev_context->dsp_mmu, dev_context->sh_s.seg0_da); - iommu_kunmap(dev_context->dsp_mmu, dev_context->sh_s.seg1_da); - iommu_put(dev_context->dsp_mmu); - dev_context->dsp_mmu = NULL; - } - /* Reset IVA IOMMU*/ - (*pdata->dsp_prm_rmw_bits)(OMAP3430_RST2_IVA2_MASK, - OMAP3430_RST2_IVA2_MASK, OMAP3430_IVA2_MOD, OMAP2_RM_RSTCTRL); + if (dev_context->dsp_mmu) + dev_context->dsp_mmu = (iommu_put(dev_context->dsp_mmu), NULL); + /* Reset IVA2 clocks*/ + (*pdata->dsp_prm_write)(OMAP3430_RST1_IVA2_MASK | OMAP3430_RST2_IVA2_MASK | + OMAP3430_RST3_IVA2_MASK, OMAP3430_IVA2_MOD, OMAP2_RM_RSTCTRL); dsp_clock_disable_all(dev_context->dsp_per_clks); dsp_clk_disable(DSP_CLK_IVA2); diff --git a/drivers/staging/tidspbridge/core/tiomap_io.c b/drivers/staging/tidspbridge/core/tiomap_io.c index 5ba679577354..ba2961049dad 100644 --- a/drivers/staging/tidspbridge/core/tiomap_io.c +++ b/drivers/staging/tidspbridge/core/tiomap_io.c @@ -134,9 +134,10 @@ int read_ext_dsp_data(struct bridge_dev_context *dev_ctxt, if (!status) { ul_tlb_base_virt = - dev_context->sh_s.seg0_da * DSPWORDSIZE; + dev_context->atlb_entry[0].ul_dsp_va * DSPWORDSIZE; DBC_ASSERT(ul_tlb_base_virt <= ul_shm_base_virt); - dw_ext_prog_virt_mem = dev_context->sh_s.seg0_va; + dw_ext_prog_virt_mem = + dev_context->atlb_entry[0].ul_gpp_va; if (!trace_read) { ul_shm_offset_virt = @@ -317,9 +318,8 @@ int write_ext_dsp_data(struct bridge_dev_context *dev_context, ret = -EPERM; if (!ret) { - ul_tlb_base_virt = dev_context->sh_s.seg0_da * - DSPWORDSIZE; - + ul_tlb_base_virt = + dev_context->atlb_entry[0].ul_dsp_va * DSPWORDSIZE; DBC_ASSERT(ul_tlb_base_virt <= ul_shm_base_virt); if (symbols_reloaded) { @@ -337,7 +337,7 @@ int write_ext_dsp_data(struct bridge_dev_context *dev_context, ul_shm_base_virt - ul_tlb_base_virt; if (trace_load) { dw_ext_prog_virt_mem = - dev_context->sh_s.seg0_va; + dev_context->atlb_entry[0].ul_gpp_va; } else { dw_ext_prog_virt_mem = host_res->dw_mem_base[1]; dw_ext_prog_virt_mem += |