diff options
author | Ohad Sharabi <osharabi@habana.ai> | 2022-03-01 14:29:41 +0200 |
---|---|---|
committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2022-05-22 20:57:34 +0200 |
commit | 06926dbed215ac98d253b151ae5ad3b0cabac2bf (patch) | |
tree | da785e4244de2060c171f6af71d5fb057890ff80 /drivers | |
parent | 2f8f0de878e0f25984befd5a1f8f001e7c5ff9fd (diff) | |
download | linux-06926dbed215ac98d253b151ae5ad3b0cabac2bf.tar.bz2 |
habanalabs: convert all MMU masks/shifts to arrays
There is no need to hold each MMU mask/shift as a denoted structure
member (e.g. hop0_mask).
Instead converting it to array will result in smaller and more readable
code.
Signed-off-by: Ohad Sharabi <osharabi@habana.ai>
Reviewed-by: Oded Gabbay <ogabbay@kernel.org>
Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers')
-rw-r--r-- | drivers/misc/habanalabs/common/habanalabs.h | 28 | ||||
-rw-r--r-- | drivers/misc/habanalabs/common/mmu/mmu.c | 46 | ||||
-rw-r--r-- | drivers/misc/habanalabs/common/mmu/mmu_v1.c | 20 | ||||
-rw-r--r-- | drivers/misc/habanalabs/gaudi/gaudi.c | 20 | ||||
-rw-r--r-- | drivers/misc/habanalabs/goya/goya.c | 20 | ||||
-rw-r--r-- | drivers/misc/habanalabs/include/hw_ip/mmu/mmu_general.h | 10 |
6 files changed, 52 insertions, 92 deletions
diff --git a/drivers/misc/habanalabs/common/habanalabs.h b/drivers/misc/habanalabs/common/habanalabs.h index 990190fc3054..6eb35e4124c2 100644 --- a/drivers/misc/habanalabs/common/habanalabs.h +++ b/drivers/misc/habanalabs/common/habanalabs.h @@ -394,18 +394,8 @@ enum hl_device_hw_state { * struct hl_mmu_properties - ASIC specific MMU address translation properties. * @start_addr: virtual start address of the memory region. * @end_addr: virtual end address of the memory region. - * @hop0_shift: shift of hop 0 mask. - * @hop1_shift: shift of hop 1 mask. - * @hop2_shift: shift of hop 2 mask. - * @hop3_shift: shift of hop 3 mask. - * @hop4_shift: shift of hop 4 mask. - * @hop5_shift: shift of hop 5 mask. - * @hop0_mask: mask to get the PTE address in hop 0. - * @hop1_mask: mask to get the PTE address in hop 1. - * @hop2_mask: mask to get the PTE address in hop 2. - * @hop3_mask: mask to get the PTE address in hop 3. - * @hop4_mask: mask to get the PTE address in hop 4. - * @hop5_mask: mask to get the PTE address in hop 5. + * @hop_shifts: array holds HOPs shifts. + * @hop_masks: array holds HOPs masks. * @last_mask: mask to get the bit indicating this is the last hop. * @pgt_size: size for page tables. * @page_size: default page size used to allocate memory. @@ -418,18 +408,8 @@ enum hl_device_hw_state { struct hl_mmu_properties { u64 start_addr; u64 end_addr; - u64 hop0_shift; - u64 hop1_shift; - u64 hop2_shift; - u64 hop3_shift; - u64 hop4_shift; - u64 hop5_shift; - u64 hop0_mask; - u64 hop1_mask; - u64 hop2_mask; - u64 hop3_mask; - u64 hop4_mask; - u64 hop5_mask; + u64 hop_shifts[MMU_HOP_MAX]; + u64 hop_masks[MMU_HOP_MAX]; u64 last_mask; u64 pgt_size; u32 page_size; diff --git a/drivers/misc/habanalabs/common/mmu/mmu.c b/drivers/misc/habanalabs/common/mmu/mmu.c index a3de6252915d..27c9088bf347 100644 --- a/drivers/misc/habanalabs/common/mmu/mmu.c +++ b/drivers/misc/habanalabs/common/mmu/mmu.c @@ -489,11 +489,9 @@ static void hl_mmu_pa_page_with_offset(struct hl_ctx *ctx, u64 virt_addr, struct hl_mmu_hop_info *hops, u64 *phys_addr) { - struct hl_device *hdev = ctx->hdev; - struct asic_fixed_properties *prop = &hdev->asic_prop; + struct asic_fixed_properties *prop = &ctx->hdev->asic_prop; u64 offset_mask, addr_mask, hop_shift, tmp_phys_addr; - u32 hop0_shift_off; - void *p; + struct hl_mmu_properties *mmu_prop; /* last hop holds the phys address and flags */ if (hops->unscrambled_paddr) @@ -502,11 +500,11 @@ static void hl_mmu_pa_page_with_offset(struct hl_ctx *ctx, u64 virt_addr, tmp_phys_addr = hops->hop_info[hops->used_hops - 1].hop_pte_val; if (hops->range_type == HL_VA_RANGE_TYPE_HOST_HUGE) - p = &prop->pmmu_huge; + mmu_prop = &prop->pmmu_huge; else if (hops->range_type == HL_VA_RANGE_TYPE_HOST) - p = &prop->pmmu; + mmu_prop = &prop->pmmu; else /* HL_VA_RANGE_TYPE_DRAM */ - p = &prop->dmmu; + mmu_prop = &prop->dmmu; if ((hops->range_type == HL_VA_RANGE_TYPE_DRAM) && !is_power_of_2(prop->dram_page_size)) { @@ -535,10 +533,7 @@ static void hl_mmu_pa_page_with_offset(struct hl_ctx *ctx, u64 virt_addr, * structure in order to determine the right masks * for the page offset. */ - hop0_shift_off = offsetof(struct hl_mmu_properties, hop0_shift); - p = (char *)p + hop0_shift_off; - p = (char *)p + ((hops->used_hops - 1) * sizeof(u64)); - hop_shift = *(u64 *)p; + hop_shift = mmu_prop->hop_shifts[hops->used_hops - 1]; offset_mask = (1ull << hop_shift) - 1; addr_mask = ~(offset_mask); *phys_addr = (tmp_phys_addr & addr_mask) | @@ -694,33 +689,8 @@ u64 hl_mmu_get_hop_pte_phys_addr(struct hl_ctx *ctx, struct hl_mmu_properties *m return U64_MAX; } - /* currently max number of HOPs is 6 */ - switch (hop_idx) { - case 0: - mask = mmu_prop->hop0_mask; - shift = mmu_prop->hop0_shift; - break; - case 1: - mask = mmu_prop->hop1_mask; - shift = mmu_prop->hop1_shift; - break; - case 2: - mask = mmu_prop->hop2_mask; - shift = mmu_prop->hop2_shift; - break; - case 3: - mask = mmu_prop->hop3_mask; - shift = mmu_prop->hop3_shift; - break; - case 4: - mask = mmu_prop->hop4_mask; - shift = mmu_prop->hop4_shift; - break; - default: - mask = mmu_prop->hop5_mask; - shift = mmu_prop->hop5_shift; - break; - } + shift = mmu_prop->hop_shifts[hop_idx]; + mask = mmu_prop->hop_masks[hop_idx]; return hop_addr + ctx->hdev->asic_prop.mmu_pte_size * ((virt_addr & mask) >> shift); } diff --git a/drivers/misc/habanalabs/common/mmu/mmu_v1.c b/drivers/misc/habanalabs/common/mmu/mmu_v1.c index d03786d0c407..f43657ad442b 100644 --- a/drivers/misc/habanalabs/common/mmu/mmu_v1.c +++ b/drivers/misc/habanalabs/common/mmu/mmu_v1.c @@ -181,40 +181,40 @@ static inline u64 get_hop0_pte_addr(struct hl_ctx *ctx, struct hl_mmu_properties *mmu_prop, u64 hop_addr, u64 vaddr) { - return get_hopN_pte_addr(ctx, hop_addr, vaddr, mmu_prop->hop0_mask, - mmu_prop->hop0_shift); + return get_hopN_pte_addr(ctx, hop_addr, vaddr, mmu_prop->hop_masks[MMU_HOP0], + mmu_prop->hop_shifts[MMU_HOP0]); } static inline u64 get_hop1_pte_addr(struct hl_ctx *ctx, struct hl_mmu_properties *mmu_prop, u64 hop_addr, u64 vaddr) { - return get_hopN_pte_addr(ctx, hop_addr, vaddr, mmu_prop->hop1_mask, - mmu_prop->hop1_shift); + return get_hopN_pte_addr(ctx, hop_addr, vaddr, mmu_prop->hop_masks[MMU_HOP1], + mmu_prop->hop_shifts[MMU_HOP1]); } static inline u64 get_hop2_pte_addr(struct hl_ctx *ctx, struct hl_mmu_properties *mmu_prop, u64 hop_addr, u64 vaddr) { - return get_hopN_pte_addr(ctx, hop_addr, vaddr, mmu_prop->hop2_mask, - mmu_prop->hop2_shift); + return get_hopN_pte_addr(ctx, hop_addr, vaddr, mmu_prop->hop_masks[MMU_HOP2], + mmu_prop->hop_shifts[MMU_HOP2]); } static inline u64 get_hop3_pte_addr(struct hl_ctx *ctx, struct hl_mmu_properties *mmu_prop, u64 hop_addr, u64 vaddr) { - return get_hopN_pte_addr(ctx, hop_addr, vaddr, mmu_prop->hop3_mask, - mmu_prop->hop3_shift); + return get_hopN_pte_addr(ctx, hop_addr, vaddr, mmu_prop->hop_masks[MMU_HOP3], + mmu_prop->hop_shifts[MMU_HOP3]); } static inline u64 get_hop4_pte_addr(struct hl_ctx *ctx, struct hl_mmu_properties *mmu_prop, u64 hop_addr, u64 vaddr) { - return get_hopN_pte_addr(ctx, hop_addr, vaddr, mmu_prop->hop4_mask, - mmu_prop->hop4_shift); + return get_hopN_pte_addr(ctx, hop_addr, vaddr, mmu_prop->hop_masks[MMU_HOP4], + mmu_prop->hop_shifts[MMU_HOP4]); } static inline u64 get_alloc_next_hop_addr(struct hl_ctx *ctx, u64 curr_pte, diff --git a/drivers/misc/habanalabs/gaudi/gaudi.c b/drivers/misc/habanalabs/gaudi/gaudi.c index 47afc5d1aef4..5979434d1905 100644 --- a/drivers/misc/habanalabs/gaudi/gaudi.c +++ b/drivers/misc/habanalabs/gaudi/gaudi.c @@ -598,16 +598,16 @@ static int gaudi_set_fixed_properties(struct hl_device *hdev) prop->device_mem_alloc_default_page_size = prop->dram_page_size; prop->dram_supports_virtual_memory = false; - prop->pmmu.hop0_shift = MMU_V1_1_HOP0_SHIFT; - prop->pmmu.hop1_shift = MMU_V1_1_HOP1_SHIFT; - prop->pmmu.hop2_shift = MMU_V1_1_HOP2_SHIFT; - prop->pmmu.hop3_shift = MMU_V1_1_HOP3_SHIFT; - prop->pmmu.hop4_shift = MMU_V1_1_HOP4_SHIFT; - prop->pmmu.hop0_mask = MMU_V1_1_HOP0_MASK; - prop->pmmu.hop1_mask = MMU_V1_1_HOP1_MASK; - prop->pmmu.hop2_mask = MMU_V1_1_HOP2_MASK; - prop->pmmu.hop3_mask = MMU_V1_1_HOP3_MASK; - prop->pmmu.hop4_mask = MMU_V1_1_HOP4_MASK; + prop->pmmu.hop_shifts[MMU_HOP0] = MMU_V1_1_HOP0_SHIFT; + prop->pmmu.hop_shifts[MMU_HOP1] = MMU_V1_1_HOP1_SHIFT; + prop->pmmu.hop_shifts[MMU_HOP2] = MMU_V1_1_HOP2_SHIFT; + prop->pmmu.hop_shifts[MMU_HOP3] = MMU_V1_1_HOP3_SHIFT; + prop->pmmu.hop_shifts[MMU_HOP4] = MMU_V1_1_HOP4_SHIFT; + prop->pmmu.hop_masks[MMU_HOP0] = MMU_V1_1_HOP0_MASK; + prop->pmmu.hop_masks[MMU_HOP1] = MMU_V1_1_HOP1_MASK; + prop->pmmu.hop_masks[MMU_HOP2] = MMU_V1_1_HOP2_MASK; + prop->pmmu.hop_masks[MMU_HOP3] = MMU_V1_1_HOP3_MASK; + prop->pmmu.hop_masks[MMU_HOP4] = MMU_V1_1_HOP4_MASK; prop->pmmu.start_addr = VA_HOST_SPACE_START; prop->pmmu.end_addr = (VA_HOST_SPACE_START + VA_HOST_SPACE_SIZE / 2) - 1; diff --git a/drivers/misc/habanalabs/goya/goya.c b/drivers/misc/habanalabs/goya/goya.c index e4b7b9706d1a..ec347bd3bb69 100644 --- a/drivers/misc/habanalabs/goya/goya.c +++ b/drivers/misc/habanalabs/goya/goya.c @@ -416,16 +416,16 @@ int goya_set_fixed_properties(struct hl_device *hdev) prop->device_mem_alloc_default_page_size = prop->dram_page_size; prop->dram_supports_virtual_memory = true; - prop->dmmu.hop0_shift = MMU_V1_0_HOP0_SHIFT; - prop->dmmu.hop1_shift = MMU_V1_0_HOP1_SHIFT; - prop->dmmu.hop2_shift = MMU_V1_0_HOP2_SHIFT; - prop->dmmu.hop3_shift = MMU_V1_0_HOP3_SHIFT; - prop->dmmu.hop4_shift = MMU_V1_0_HOP4_SHIFT; - prop->dmmu.hop0_mask = MMU_V1_0_HOP0_MASK; - prop->dmmu.hop1_mask = MMU_V1_0_HOP1_MASK; - prop->dmmu.hop2_mask = MMU_V1_0_HOP2_MASK; - prop->dmmu.hop3_mask = MMU_V1_0_HOP3_MASK; - prop->dmmu.hop4_mask = MMU_V1_0_HOP4_MASK; + prop->dmmu.hop_shifts[MMU_HOP0] = MMU_V1_0_HOP0_SHIFT; + prop->dmmu.hop_shifts[MMU_HOP1] = MMU_V1_0_HOP1_SHIFT; + prop->dmmu.hop_shifts[MMU_HOP2] = MMU_V1_0_HOP2_SHIFT; + prop->dmmu.hop_shifts[MMU_HOP3] = MMU_V1_0_HOP3_SHIFT; + prop->dmmu.hop_shifts[MMU_HOP4] = MMU_V1_0_HOP4_SHIFT; + prop->dmmu.hop_masks[MMU_HOP0] = MMU_V1_0_HOP0_MASK; + prop->dmmu.hop_masks[MMU_HOP1] = MMU_V1_0_HOP1_MASK; + prop->dmmu.hop_masks[MMU_HOP2] = MMU_V1_0_HOP2_MASK; + prop->dmmu.hop_masks[MMU_HOP3] = MMU_V1_0_HOP3_MASK; + prop->dmmu.hop_masks[MMU_HOP4] = MMU_V1_0_HOP4_MASK; prop->dmmu.start_addr = VA_DDR_SPACE_START; prop->dmmu.end_addr = VA_DDR_SPACE_END; prop->dmmu.page_size = PAGE_SIZE_2MB; diff --git a/drivers/misc/habanalabs/include/hw_ip/mmu/mmu_general.h b/drivers/misc/habanalabs/include/hw_ip/mmu/mmu_general.h index 758f246627f8..cae8ac8bc5b1 100644 --- a/drivers/misc/habanalabs/include/hw_ip/mmu/mmu_general.h +++ b/drivers/misc/habanalabs/include/hw_ip/mmu/mmu_general.h @@ -34,4 +34,14 @@ #define MMU_CONFIG_TIMEOUT_USEC 2000 /* 2 ms */ +enum mmu_hop_num { + MMU_HOP0, + MMU_HOP1, + MMU_HOP2, + MMU_HOP3, + MMU_HOP4, + MMU_HOP5, + MMU_HOP_MAX, +}; + #endif /* INCLUDE_MMU_GENERAL_H_ */ |