/*
 * Copyright 2013 Advanced Micro Devices, Inc.
 * All Rights Reserved.
 *
 * Permission is hereby granted, free of charge, to any person obtaining a
 * copy of this software and associated documentation files (the "Software"),
 * to deal in the Software without restriction, including without limitation
 * on the rights to use, copy, modify, merge, publish, distribute, sub
 * license, and/or sell copies of the Software, and to permit persons to whom
 * the Software is furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice (including the next
 * paragraph) shall be included in all copies or substantial portions of the
 * Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL
 * THE AUTHOR(S) AND/OR THEIR SUPPLIERS BE LIABLE FOR ANY CLAIM,
 * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
 * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
 * USE OR OTHER DEALINGS IN THE SOFTWARE.
 */

/* Resource binding slots and sampler states (each described with 8 or
 * 4 dwords) are stored in lists in memory which is accessed by shaders
 * using scalar load instructions.
 *
 * This file is responsible for managing such lists. It keeps a copy of all
 * descriptors in CPU memory and re-uploads a whole list if some slots have
 * been changed.
 *
 * This code is also reponsible for updating shader pointers to those lists.
 *
 * Note that CP DMA can't be used for updating the lists, because a GPU hang
 * could leave the list in a mid-IB state and the next IB would get wrong
 * descriptors and the whole context would be unusable at that point.
 * (Note: The register shadowing can't be used due to the same reason)
 *
 * Also, uploading descriptors to newly allocated memory doesn't require
 * a KCACHE flush.
 *
 *
 * Possible scenarios for one 16 dword image+sampler slot:
 *
 *       | Image        | w/ FMASK   | Buffer       | NULL
 * [ 0: 3] Image[0:3]   | Image[0:3] | Null[0:3]    | Null[0:3]
 * [ 4: 7] Image[4:7]   | Image[4:7] | Buffer[0:3]  | 0
 * [ 8:11] Null[0:3]    | Fmask[0:3] | Null[0:3]    | Null[0:3]
 * [12:15] Sampler[0:3] | Fmask[4:7] | Sampler[0:3] | Sampler[0:3]
 *
 * FMASK implies MSAA, therefore no sampler state.
 * Sampler states are never unbound except when FMASK is bound.
 */

#include "si_pipe.h"
#include "si_compute.h"
#include "sid.h"
#include "util/format/u_format.h"
#include "util/hash_table.h"
#include "util/u_idalloc.h"
#include "util/u_memory.h"
#include "util/u_upload_mgr.h"

/* NULL image and buffer descriptor for textures (alpha = 1) and images
 * (alpha = 0).
 *
 * For images, all fields must be zero except for the swizzle, which
 * supports arbitrary combinations of 0s and 1s. The texture type must be
 * any valid type (e.g. 1D). If the texture type isn't set, the hw hangs.
 *
 * For buffers, all fields must be zero. If they are not, the hw hangs.
 *
 * This is the only reason why the buffer descriptor must be in words [4:7].
 */
static uint32_t null_texture_descriptor[8] = {
   0, 0, 0, S_008F1C_DST_SEL_W(V_008F1C_SQ_SEL_1) | S_008F1C_TYPE(V_008F1C_SQ_RSRC_IMG_1D)
   /* the rest must contain zeros, which is also used by the buffer
    * descriptor */
};

static uint32_t null_image_descriptor[8] = {
   0, 0, 0, S_008F1C_TYPE(V_008F1C_SQ_RSRC_IMG_1D)
   /* the rest must contain zeros, which is also used by the buffer
    * descriptor */
};

static uint64_t si_desc_extract_buffer_address(const uint32_t *desc)
{
   uint64_t va = desc[0] | ((uint64_t)G_008F04_BASE_ADDRESS_HI(desc[1]) << 32);

   /* Sign-extend the 48-bit address. */
   va <<= 16;
   va = (int64_t)va >> 16;
   return va;
}

static void si_init_descriptor_list(uint32_t *desc_list, unsigned element_dw_size,
                                    unsigned num_elements, const uint32_t *null_descriptor)
{
   int i;

   /* Initialize the array to NULL descriptors if the element size is 8. */
   if (null_descriptor) {
      assert(element_dw_size % 8 == 0);
      for (i = 0; i < num_elements * element_dw_size / 8; i++)
         memcpy(desc_list + i * 8, null_descriptor, 8 * 4);
   }
}

static void si_init_descriptors(struct si_descriptors *desc, short shader_userdata_rel_index,
                                unsigned element_dw_size, unsigned num_elements)
{
   desc->list = CALLOC(num_elements, element_dw_size * 4);
   desc->element_dw_size = element_dw_size;
   desc->num_elements = num_elements;
   desc->shader_userdata_offset = shader_userdata_rel_index * 4;
   desc->slot_index_to_bind_directly = -1;
}

static void si_release_descriptors(struct si_descriptors *desc)
{
   si_resource_reference(&desc->buffer, NULL);
   FREE(desc->list);
}

static bool si_upload_descriptors(struct si_context *sctx, struct si_descriptors *desc)
{
   unsigned slot_size = desc->element_dw_size * 4;
   unsigned first_slot_offset = desc->first_active_slot * slot_size;
   unsigned upload_size = desc->num_active_slots * slot_size;

   /* Skip the upload if no shader is using the descriptors. dirty_mask
    * will stay dirty and the descriptors will be uploaded when there is
    * a shader using them.
    */
   if (!upload_size)
      return true;

   /* If there is just one active descriptor, bind it directly. */
   if ((int)desc->first_active_slot == desc->slot_index_to_bind_directly &&
       desc->num_active_slots == 1) {
      uint32_t *descriptor = &desc->list[desc->slot_index_to_bind_directly * desc->element_dw_size];

      /* The buffer is already in the buffer list. */
      si_resource_reference(&desc->buffer, NULL);
      desc->gpu_list = NULL;
      desc->gpu_address = si_desc_extract_buffer_address(descriptor);
      si_mark_atom_dirty(sctx, &sctx->atoms.s.shader_pointers);
      return true;
   }

   uint32_t *ptr;
   unsigned buffer_offset;
   u_upload_alloc(sctx->b.const_uploader, first_slot_offset, upload_size,
                  si_optimal_tcc_alignment(sctx, upload_size), &buffer_offset,
                  (struct pipe_resource **)&desc->buffer, (void **)&ptr);
   if (!desc->buffer) {
      desc->gpu_address = 0;
      return false; /* skip the draw call */
   }

   util_memcpy_cpu_to_le32(ptr, (char *)desc->list + first_slot_offset, upload_size);
   desc->gpu_list = ptr - first_slot_offset / 4;

   radeon_add_to_buffer_list(sctx, sctx->gfx_cs, desc->buffer, RADEON_USAGE_READ,
                             RADEON_PRIO_DESCRIPTORS);

   /* The shader pointer should point to slot 0. */
   buffer_offset -= first_slot_offset;
   desc->gpu_address = desc->buffer->gpu_address + buffer_offset;

   assert(desc->buffer->flags & RADEON_FLAG_32BIT);
   assert((desc->buffer->gpu_address >> 32) == sctx->screen->info.address32_hi);
   assert((desc->gpu_address >> 32) == sctx->screen->info.address32_hi);

   si_mark_atom_dirty(sctx, &sctx->atoms.s.shader_pointers);
   return true;
}

static void
si_add_descriptors_to_bo_list(struct si_context *sctx, struct si_descriptors *desc)
{
   if (!desc->buffer)
      return;

   radeon_add_to_buffer_list(sctx, sctx->gfx_cs, desc->buffer, RADEON_USAGE_READ,
                             RADEON_PRIO_DESCRIPTORS);
}

/* SAMPLER VIEWS */

static inline enum radeon_bo_priority si_get_sampler_view_priority(struct si_resource *res)
{
   if (res->b.b.target == PIPE_BUFFER)
      return RADEON_PRIO_SAMPLER_BUFFER;

   if (res->b.b.nr_samples > 1)
      return RADEON_PRIO_SAMPLER_TEXTURE_MSAA;

   return RADEON_PRIO_SAMPLER_TEXTURE;
}

static struct si_descriptors *si_sampler_and_image_descriptors(struct si_context *sctx,
                                                               unsigned shader)
{
   return &sctx->descriptors[si_sampler_and_image_descriptors_idx(shader)];
}

static void si_release_sampler_views(struct si_samplers *samplers)
{
   int i;

   for (i = 0; i < ARRAY_SIZE(samplers->views); i++) {
      pipe_sampler_view_reference(&samplers->views[i], NULL);
   }
}

static void si_sampler_view_add_buffer(struct si_context *sctx, struct pipe_resource *resource,
                                       enum radeon_bo_usage usage, bool is_stencil_sampler,
                                       bool check_mem)
{
   struct si_texture *tex = (struct si_texture *)resource;
   enum radeon_bo_priority priority;

   if (!resource)
      return;

   /* Use the flushed depth texture if direct sampling is unsupported. */
   if (resource->target != PIPE_BUFFER && tex->is_depth &&
       !si_can_sample_zs(tex, is_stencil_sampler))
      tex = tex->flushed_depth_texture;

   priority = si_get_sampler_view_priority(&tex->buffer);
   radeon_add_to_gfx_buffer_list_check_mem(sctx, &tex->buffer, usage, priority, check_mem);

   if (resource->target == PIPE_BUFFER)
      return;

   /* Add separate DCC. */
   if (tex->dcc_separate_buffer) {
      radeon_add_to_gfx_buffer_list_check_mem(sctx, tex->dcc_separate_buffer, usage,
                                              RADEON_PRIO_SEPARATE_META, check_mem);
   }
}

static void si_sampler_views_begin_new_cs(struct si_context *sctx, struct si_samplers *samplers)
{
   unsigned mask = samplers->enabled_mask;

   /* Add buffers to the CS. */
   while (mask) {
      int i = u_bit_scan(&mask);
      struct si_sampler_view *sview = (struct si_sampler_view *)samplers->views[i];

      si_sampler_view_add_buffer(sctx, sview->base.texture, RADEON_USAGE_READ,
                                 sview->is_stencil_sampler, false);
   }
}

static bool si_sampler_views_check_encrypted(struct si_context *sctx, struct si_samplers *samplers,
                                             unsigned samplers_declared)
{
   unsigned mask = samplers->enabled_mask & samplers_declared;

   /* Verify if a samplers uses an encrypted resource */
   while (mask) {
      int i = u_bit_scan(&mask);
      struct si_sampler_view *sview = (struct si_sampler_view *)samplers->views[i];

      struct si_resource *res = si_resource(sview->base.texture);
      if (res->flags & RADEON_FLAG_ENCRYPTED)
         return true;
   }
   return false;
}

/* Set buffer descriptor fields that can be changed by reallocations. */
static void si_set_buf_desc_address(struct si_resource *buf, uint64_t offset, uint32_t *state)
{
   uint64_t va = buf->gpu_address + offset;

   state[0] = va;
   state[1] &= C_008F04_BASE_ADDRESS_HI;
   state[1] |= S_008F04_BASE_ADDRESS_HI(va >> 32);
}

/* Set texture descriptor fields that can be changed by reallocations.
 *
 * \param tex			texture
 * \param base_level_info	information of the level of BASE_ADDRESS
 * \param base_level		the level of BASE_ADDRESS
 * \param first_level		pipe_sampler_view.u.tex.first_level
 * \param block_width		util_format_get_blockwidth()
 * \param is_stencil		select between separate Z & Stencil
 * \param state			descriptor to update
 */
void si_set_mutable_tex_desc_fields(struct si_screen *sscreen, struct si_texture *tex,
                                    const struct legacy_surf_level *base_level_info,
                                    unsigned base_level, unsigned first_level, unsigned block_width,
                                    bool is_stencil, bool force_dcc_off, uint32_t *state)
{
   uint64_t va, meta_va = 0;

   if (tex->is_depth && !si_can_sample_zs(tex, is_stencil)) {
      tex = tex->flushed_depth_texture;
      is_stencil = false;
   }

   va = tex->buffer.gpu_address;

   if (sscreen->info.chip_class >= GFX9) {
      /* Only stencil_offset needs to be added here. */
      if (is_stencil)
         va += tex->surface.u.gfx9.stencil_offset;
      else
         va += tex->surface.u.gfx9.surf_offset;
   } else {
      va += base_level_info->offset;
   }

   state[0] = va >> 8;
   state[1] &= C_008F14_BASE_ADDRESS_HI;
   state[1] |= S_008F14_BASE_ADDRESS_HI(va >> 40);

   /* Only macrotiled modes can set tile swizzle.
    * GFX9 doesn't use (legacy) base_level_info.
    */
   if (sscreen->info.chip_class >= GFX9 || base_level_info->mode == RADEON_SURF_MODE_2D)
      state[0] |= tex->surface.tile_swizzle;

   if (sscreen->info.chip_class >= GFX8) {
      state[6] &= C_008F28_COMPRESSION_EN;

      if (!force_dcc_off && vi_dcc_enabled(tex, first_level)) {
         meta_va =
            (!tex->dcc_separate_buffer ? tex->buffer.gpu_address : 0) + tex->surface.dcc_offset;

         if (sscreen->info.chip_class == GFX8) {
            meta_va += base_level_info->dcc_offset;
            assert(base_level_info->mode == RADEON_SURF_MODE_2D);
         }

         unsigned dcc_tile_swizzle = tex->surface.tile_swizzle << 8;
         dcc_tile_swizzle &= tex->surface.dcc_alignment - 1;
         meta_va |= dcc_tile_swizzle;
      } else if (vi_tc_compat_htile_enabled(tex, first_level,
                                            is_stencil ? PIPE_MASK_S : PIPE_MASK_Z)) {
         meta_va = tex->buffer.gpu_address + tex->surface.htile_offset;
      }

      if (meta_va)
         state[6] |= S_008F28_COMPRESSION_EN(1);
   }

   if (sscreen->info.chip_class >= GFX8 && sscreen->info.chip_class <= GFX9)
      state[7] = meta_va >> 8;

   if (sscreen->info.chip_class >= GFX10) {
      state[3] &= C_00A00C_SW_MODE;

      if (is_stencil) {
         state[3] |= S_00A00C_SW_MODE(tex->surface.u.gfx9.stencil.swizzle_mode);
      } else {
         state[3] |= S_00A00C_SW_MODE(tex->surface.u.gfx9.surf.swizzle_mode);
      }

      state[6] &= C_00A018_META_DATA_ADDRESS_LO & C_00A018_META_PIPE_ALIGNED;

      if (meta_va) {
         struct gfx9_surf_meta_flags meta = {
            .rb_aligned = 1,
            .pipe_aligned = 1,
         };

         if (tex->surface.dcc_offset)
            meta = tex->surface.u.gfx9.dcc;

         state[6] |= S_00A018_META_PIPE_ALIGNED(meta.pipe_aligned) |
                     S_00A018_META_DATA_ADDRESS_LO(meta_va >> 8);
      }

      state[7] = meta_va >> 16;
   } else if (sscreen->info.chip_class == GFX9) {
      state[3] &= C_008F1C_SW_MODE;
      state[4] &= C_008F20_PITCH;

      if (is_stencil) {
         state[3] |= S_008F1C_SW_MODE(tex->surface.u.gfx9.stencil.swizzle_mode);
         state[4] |= S_008F20_PITCH(tex->surface.u.gfx9.stencil.epitch);
      } else {
         state[3] |= S_008F1C_SW_MODE(tex->surface.u.gfx9.surf.swizzle_mode);
         state[4] |= S_008F20_PITCH(tex->surface.u.gfx9.surf.epitch);
      }

      state[5] &=
         C_008F24_META_DATA_ADDRESS & C_008F24_META_PIPE_ALIGNED & C_008F24_META_RB_ALIGNED;
      if (meta_va) {
         struct gfx9_surf_meta_flags meta = {
            .rb_aligned = 1,
            .pipe_aligned = 1,
         };

         if (tex->surface.dcc_offset)
            meta = tex->surface.u.gfx9.dcc;

         state[5] |= S_008F24_META_DATA_ADDRESS(meta_va >> 40) |
                     S_008F24_META_PIPE_ALIGNED(meta.pipe_aligned) |
                     S_008F24_META_RB_ALIGNED(meta.rb_aligned);
      }
   } else {
      /* GFX6-GFX8 */
      unsigned pitch = base_level_info->nblk_x * block_width;
      unsigned index = si_tile_mode_index(tex, base_level, is_stencil);

      state[3] &= C_008F1C_TILING_INDEX;
      state[3] |= S_008F1C_TILING_INDEX(index);
      state[4] &= C_008F20_PITCH;
      state[4] |= S_008F20_PITCH(pitch - 1);
   }
}

static void si_set_sampler_state_desc(struct si_sampler_state *sstate,
                                      struct si_sampler_view *sview, struct si_texture *tex,
                                      uint32_t *desc)
{
   if (sview && sview->is_integer)
      memcpy(desc, sstate->integer_val, 4 * 4);
   else if (tex && tex->upgraded_depth && (!sview || !sview->is_stencil_sampler))
      memcpy(desc, sstate->upgraded_depth_val, 4 * 4);
   else
      memcpy(desc, sstate->val, 4 * 4);
}

static void si_set_sampler_view_desc(struct si_context *sctx, struct si_sampler_view *sview,
                                     struct si_sampler_state *sstate, uint32_t *desc)
{
   struct pipe_sampler_view *view = &sview->base;
   struct si_texture *tex = (struct si_texture *)view->texture;
   bool is_buffer = tex->buffer.b.b.target == PIPE_BUFFER;

   if (unlikely(!is_buffer && sview->dcc_incompatible)) {
      if (vi_dcc_enabled(tex, view->u.tex.first_level))
         if (!si_texture_disable_dcc(sctx, tex))
            si_decompress_dcc(sctx, tex);

      sview->dcc_incompatible = false;
   }

   assert(tex); /* views with texture == NULL aren't supported */
   memcpy(desc, sview->state, 8 * 4);

   if (is_buffer) {
      si_set_buf_desc_address(&tex->buffer, sview->base.u.buf.offset, desc + 4);
   } else {
      bool is_separate_stencil = tex->db_compatible && sview->is_stencil_sampler;

      si_set_mutable_tex_desc_fields(sctx->screen, tex, sview->base_level_info, sview->base_level,
                                     sview->base.u.tex.first_level, sview->block_width,
                                     is_separate_stencil, false, desc);
   }

   if (!is_buffer && tex->surface.fmask_size) {
      memcpy(desc + 8, sview->fmask_state, 8 * 4);
   } else {
      /* Disable FMASK and bind sampler state in [12:15]. */
      memcpy(desc + 8, null_texture_descriptor, 4 * 4);

      if (sstate)
         si_set_sampler_state_desc(sstate, sview, is_buffer ? NULL : tex, desc + 12);
   }
}

static bool color_needs_decompression(struct si_texture *tex)
{
   return tex->surface.fmask_size ||
          (tex->dirty_level_mask && (tex->cmask_buffer || tex->surface.dcc_offset));
}

static bool depth_needs_decompression(struct si_texture *tex)
{
   /* If the depth/stencil texture is TC-compatible, no decompression
    * will be done. The decompression function will only flush DB caches
    * to make it coherent with shaders. That's necessary because the driver
    * doesn't flush DB caches in any other case.
    */
   return tex->db_compatible;
}

static void si_set_sampler_view(struct si_context *sctx, unsigned shader, unsigned slot,
                                struct pipe_sampler_view *view, bool disallow_early_out)
{
   struct si_samplers *samplers = &sctx->samplers[shader];
   struct si_sampler_view *sview = (struct si_sampler_view *)view;
   struct si_descriptors *descs = si_sampler_and_image_descriptors(sctx, shader);
   unsigned desc_slot = si_get_sampler_slot(slot);
   uint32_t *desc = descs->list + desc_slot * 16;

   if (samplers->views[slot] == view && !disallow_early_out)
      return;

   if (view) {
      struct si_texture *tex = (struct si_texture *)view->texture;

      si_set_sampler_view_desc(sctx, sview, samplers->sampler_states[slot], desc);

      if (tex->buffer.b.b.target == PIPE_BUFFER) {
         tex->buffer.bind_history |= PIPE_BIND_SAMPLER_VIEW;
         samplers->needs_depth_decompress_mask &= ~(1u << slot);
         samplers->needs_color_decompress_mask &= ~(1u << slot);
      } else {
         if (depth_needs_decompression(tex)) {
            samplers->needs_depth_decompress_mask |= 1u << slot;
         } else {
            samplers->needs_depth_decompress_mask &= ~(1u << slot);
         }
         if (color_needs_decompression(tex)) {
            samplers->needs_color_decompress_mask |= 1u << slot;
         } else {
            samplers->needs_color_decompress_mask &= ~(1u << slot);
         }

         if (vi_dcc_enabled(tex, view->u.tex.first_level) &&
             p_atomic_read(&tex->framebuffers_bound))
            sctx->need_check_render_feedback = true;
      }

      pipe_sampler_view_reference(&samplers->views[slot], view);
      samplers->enabled_mask |= 1u << slot;

      /* Since this can flush, it must be done after enabled_mask is
       * updated. */
      si_sampler_view_add_buffer(sctx, view->texture, RADEON_USAGE_READ, sview->is_stencil_sampler,
                                 true);
   } else {
      pipe_sampler_view_reference(&samplers->views[slot], NULL);
      memcpy(desc, null_texture_descriptor, 8 * 4);
      /* Only clear the lower dwords of FMASK. */
      memcpy(desc + 8, null_texture_descriptor, 4 * 4);
      /* Re-set the sampler state if we are transitioning from FMASK. */
      if (samplers->sampler_states[slot])
         si_set_sampler_state_desc(samplers->sampler_states[slot], NULL, NULL, desc + 12);

      samplers->enabled_mask &= ~(1u << slot);
      samplers->needs_depth_decompress_mask &= ~(1u << slot);
      samplers->needs_color_decompress_mask &= ~(1u << slot);
   }

   sctx->descriptors_dirty |= 1u << si_sampler_and_image_descriptors_idx(shader);
}

static void si_update_shader_needs_decompress_mask(struct si_context *sctx, unsigned shader)
{
   struct si_samplers *samplers = &sctx->samplers[shader];
   unsigned shader_bit = 1 << shader;

   if (samplers->needs_depth_decompress_mask || samplers->needs_color_decompress_mask ||
       sctx->images[shader].needs_color_decompress_mask)
      sctx->shader_needs_decompress_mask |= shader_bit;
   else
      sctx->shader_needs_decompress_mask &= ~shader_bit;
}

static void si_set_sampler_views(struct pipe_context *ctx, enum pipe_shader_type shader,
                                 unsigned start, unsigned count, struct pipe_sampler_view **views)
{
   struct si_context *sctx = (struct si_context *)ctx;
   int i;

   if (!count || shader >= SI_NUM_SHADERS)
      return;

   if (views) {
      for (i = 0; i < count; i++)
         si_set_sampler_view(sctx, shader, start + i, views[i], false);
   } else {
      for (i = 0; i < count; i++)
         si_set_sampler_view(sctx, shader, start + i, NULL, false);
   }

   si_update_shader_needs_decompress_mask(sctx, shader);
}

static void si_samplers_update_needs_color_decompress_mask(struct si_samplers *samplers)
{
   unsigned mask = samplers->enabled_mask;

   while (mask) {
      int i = u_bit_scan(&mask);
      struct pipe_resource *res = samplers->views[i]->texture;

      if (res && res->target != PIPE_BUFFER) {
         struct si_texture *tex = (struct si_texture *)res;

         if (color_needs_decompression(tex)) {
            samplers->needs_color_decompress_mask |= 1u << i;
         } else {
            samplers->needs_color_decompress_mask &= ~(1u << i);
         }
      }
   }
}

/* IMAGE VIEWS */

static void si_release_image_views(struct si_images *images)
{
   unsigned i;

   for (i = 0; i < SI_NUM_IMAGES; ++i) {
      struct pipe_image_view *view = &images->views[i];

      pipe_resource_reference(&view->resource, NULL);
   }
}

static void si_image_views_begin_new_cs(struct si_context *sctx, struct si_images *images)
{
   uint mask = images->enabled_mask;

   /* Add buffers to the CS. */
   while (mask) {
      int i = u_bit_scan(&mask);
      struct pipe_image_view *view = &images->views[i];

      assert(view->resource);

      si_sampler_view_add_buffer(sctx, view->resource, RADEON_USAGE_READWRITE, false, false);
   }
}

static bool si_image_views_check_encrypted(struct si_context *sctx, struct si_images *images,
                                           unsigned images_declared)
{
   uint mask = images->enabled_mask & images_declared;

   while (mask) {
      int i = u_bit_scan(&mask);
      struct pipe_image_view *view = &images->views[i];

      assert(view->resource);

      struct si_texture *tex = (struct si_texture *)view->resource;
      if (tex->buffer.flags & RADEON_FLAG_ENCRYPTED)
         return true;
   }
   return false;
}

static void si_disable_shader_image(struct si_context *ctx, unsigned shader, unsigned slot)
{
   struct si_images *images = &ctx->images[shader];

   if (images->enabled_mask & (1u << slot)) {
      struct si_descriptors *descs = si_sampler_and_image_descriptors(ctx, shader);
      unsigned desc_slot = si_get_image_slot(slot);

      pipe_resource_reference(&images->views[slot].resource, NULL);
      images->needs_color_decompress_mask &= ~(1 << slot);

      memcpy(descs->list + desc_slot * 8, null_image_descriptor, 8 * 4);
      images->enabled_mask &= ~(1u << slot);
      ctx->descriptors_dirty |= 1u << si_sampler_and_image_descriptors_idx(shader);
   }
}

static void si_mark_image_range_valid(const struct pipe_image_view *view)
{
   struct si_resource *res = si_resource(view->resource);

   if (res->b.b.target != PIPE_BUFFER)
      return;

   util_range_add(&res->b.b, &res->valid_buffer_range, view->u.buf.offset,
                  view->u.buf.offset + view->u.buf.size);
}

static void si_set_shader_image_desc(struct si_context *ctx, const struct pipe_image_view *view,
                                     bool skip_decompress, uint32_t *desc, uint32_t *fmask_desc)
{
   struct si_screen *screen = ctx->screen;
   struct si_resource *res;

   res = si_resource(view->resource);

   if (res->b.b.target == PIPE_BUFFER || view->shader_access & SI_IMAGE_ACCESS_AS_BUFFER) {
      if (view->access & PIPE_IMAGE_ACCESS_WRITE)
         si_mark_image_range_valid(view);

      si_make_buffer_descriptor(screen, res, view->format, view->u.buf.offset, view->u.buf.size,
                                desc);
      si_set_buf_desc_address(res, view->u.buf.offset, desc + 4);
   } else {
      static const unsigned char swizzle[4] = {0, 1, 2, 3};
      struct si_texture *tex = (struct si_texture *)res;
      unsigned level = view->u.tex.level;
      unsigned width, height, depth, hw_level;
      bool uses_dcc = vi_dcc_enabled(tex, level);
      unsigned access = view->access;

      assert(!tex->is_depth);
      assert(fmask_desc || tex->surface.fmask_offset == 0);

      if (uses_dcc && !skip_decompress &&
          !(access & SI_IMAGE_ACCESS_DCC_OFF) &&
          (access & PIPE_IMAGE_ACCESS_WRITE ||
           !vi_dcc_formats_compatible(screen, res->b.b.format, view->format))) {
         /* If DCC can't be disabled, at least decompress it.
          * The decompression is relatively cheap if the surface
          * has been decompressed already.
          */
         if (!si_texture_disable_dcc(ctx, tex))
            si_decompress_dcc(ctx, tex);
      }

      if (ctx->chip_class >= GFX9) {
         /* Always set the base address. The swizzle modes don't
          * allow setting mipmap level offsets as the base.
          */
         width = res->b.b.width0;
         height = res->b.b.height0;
         depth = res->b.b.depth0;
         hw_level = level;
      } else {
         /* Always force the base level to the selected level.
          *
          * This is required for 3D textures, where otherwise
          * selecting a single slice for non-layered bindings
          * fails. It doesn't hurt the other targets.
          */
         width = u_minify(res->b.b.width0, level);
         height = u_minify(res->b.b.height0, level);
         depth = u_minify(res->b.b.depth0, level);
         hw_level = 0;
      }

      screen->make_texture_descriptor(
         screen, tex, false, res->b.b.target, view->format, swizzle, hw_level, hw_level,
         view->u.tex.first_layer, view->u.tex.last_layer, width, height, depth, desc, fmask_desc);
      si_set_mutable_tex_desc_fields(screen, tex, &tex->surface.u.legacy.level[level], level, level,
                                     util_format_get_blockwidth(view->format), false,
                                     view->access & SI_IMAGE_ACCESS_DCC_OFF, desc);
   }
}

static void si_set_shader_image(struct si_context *ctx, unsigned shader, unsigned slot,
                                const struct pipe_image_view *view, bool skip_decompress)
{
   struct si_images *images = &ctx->images[shader];
   struct si_descriptors *descs = si_sampler_and_image_descriptors(ctx, shader);
   struct si_resource *res;

   if (!view || !view->resource) {
      si_disable_shader_image(ctx, shader, slot);
      return;
   }

   res = si_resource(view->resource);

   si_set_shader_image_desc(ctx, view, skip_decompress, descs->list + si_get_image_slot(slot) * 8,
                            descs->list + si_get_image_slot(slot + SI_NUM_IMAGES) * 8);

   if (&images->views[slot] != view)
      util_copy_image_view(&images->views[slot], view);

   if (res->b.b.target == PIPE_BUFFER || view->shader_access & SI_IMAGE_ACCESS_AS_BUFFER) {
      images->needs_color_decompress_mask &= ~(1 << slot);
      res->bind_history |= PIPE_BIND_SHADER_IMAGE;
   } else {
      struct si_texture *tex = (struct si_texture *)res;
      unsigned level = view->u.tex.level;

      if (color_needs_decompression(tex)) {
         images->needs_color_decompress_mask |= 1 << slot;
      } else {
         images->needs_color_decompress_mask &= ~(1 << slot);
      }

      if (vi_dcc_enabled(tex, level) && p_atomic_read(&tex->framebuffers_bound))
         ctx->need_check_render_feedback = true;
   }

   images->enabled_mask |= 1u << slot;
   ctx->descriptors_dirty |= 1u << si_sampler_and_image_descriptors_idx(shader);

   /* Since this can flush, it must be done after enabled_mask is updated. */
   si_sampler_view_add_buffer(
      ctx, &res->b.b,
      (view->access & PIPE_IMAGE_ACCESS_WRITE) ? RADEON_USAGE_READWRITE : RADEON_USAGE_READ, false,
      true);
}

static void si_set_shader_images(struct pipe_context *pipe, enum pipe_shader_type shader,
                                 unsigned start_slot, unsigned count,
                                 const struct pipe_image_view *views)
{
   struct si_context *ctx = (struct si_context *)pipe;
   unsigned i, slot;

   assert(shader < SI_NUM_SHADERS);

   if (!count)
      return;

   assert(start_slot + count <= SI_NUM_IMAGES);

   if (views) {
      for (i = 0, slot = start_slot; i < count; ++i, ++slot)
         si_set_shader_image(ctx, shader, slot, &views[i], false);
   } else {
      for (i = 0, slot = start_slot; i < count; ++i, ++slot)
         si_set_shader_image(ctx, shader, slot, NULL, false);
   }

   if (shader == PIPE_SHADER_COMPUTE &&
       ctx->cs_shader_state.program &&
       start_slot < ctx->cs_shader_state.program->sel.cs_num_images_in_user_sgprs)
      ctx->compute_image_sgprs_dirty = true;

   si_update_shader_needs_decompress_mask(ctx, shader);
}

static void si_images_update_needs_color_decompress_mask(struct si_images *images)
{
   unsigned mask = images->enabled_mask;

   while (mask) {
      int i = u_bit_scan(&mask);
      struct pipe_resource *res = images->views[i].resource;

      if (res && res->target != PIPE_BUFFER) {
         struct si_texture *tex = (struct si_texture *)res;

         if (color_needs_decompression(tex)) {
            images->needs_color_decompress_mask |= 1 << i;
         } else {
            images->needs_color_decompress_mask &= ~(1 << i);
         }
      }
   }
}

void si_update_ps_colorbuf0_slot(struct si_context *sctx)
{
   struct si_buffer_resources *buffers = &sctx->rw_buffers;
   struct si_descriptors *descs = &sctx->descriptors[SI_DESCS_RW_BUFFERS];
   unsigned slot = SI_PS_IMAGE_COLORBUF0;
   struct pipe_surface *surf = NULL;

   /* si_texture_disable_dcc can get us here again. */
   if (sctx->blitter->running)
      return;

   /* See whether FBFETCH is used and color buffer 0 is set. */
   if (sctx->ps_shader.cso && sctx->ps_shader.cso->info.uses_fbfetch &&
       sctx->framebuffer.state.nr_cbufs && sctx->framebuffer.state.cbufs[0])
      surf = sctx->framebuffer.state.cbufs[0];

   /* Return if FBFETCH transitions from disabled to disabled. */
   if (!buffers->buffers[slot] && !surf)
      return;

   sctx->ps_uses_fbfetch = surf != NULL;
   si_update_ps_iter_samples(sctx);

   if (surf) {
      struct si_texture *tex = (struct si_texture *)surf->texture;
      struct pipe_image_view view = {0};

      assert(tex);
      assert(!tex->is_depth);

      /* Disable DCC, because the texture is used as both a sampler
       * and color buffer.
       */
      si_texture_disable_dcc(sctx, tex);

      if (tex->buffer.b.b.nr_samples <= 1 && tex->cmask_buffer) {
         /* Disable CMASK. */
         assert(tex->cmask_buffer != &tex->buffer);
         si_eliminate_fast_color_clear(sctx, tex, NULL);
         si_texture_discard_cmask(sctx->screen, tex);
      }

      view.resource = surf->texture;
      view.format = surf->format;
      view.access = PIPE_IMAGE_ACCESS_READ;
      view.u.tex.first_layer = surf->u.tex.first_layer;
      view.u.tex.last_layer = surf->u.tex.last_layer;
      view.u.tex.level = surf->u.tex.level;

      /* Set the descriptor. */
      uint32_t *desc = descs->list + slot * 4;
      memset(desc, 0, 16 * 4);
      si_set_shader_image_desc(sctx, &view, true, desc, desc + 8);

      pipe_resource_reference(&buffers->buffers[slot], &tex->buffer.b.b);
      radeon_add_to_buffer_list(sctx, sctx->gfx_cs, &tex->buffer, RADEON_USAGE_READ,
                                RADEON_PRIO_SHADER_RW_IMAGE);
      buffers->enabled_mask |= 1u << slot;
   } else {
      /* Clear the descriptor. */
      memset(descs->list + slot * 4, 0, 8 * 4);
      pipe_resource_reference(&buffers->buffers[slot], NULL);
      buffers->enabled_mask &= ~(1u << slot);
   }

   sctx->descriptors_dirty |= 1u << SI_DESCS_RW_BUFFERS;
}

/* SAMPLER STATES */

static void si_bind_sampler_states(struct pipe_context *ctx, enum pipe_shader_type shader,
                                   unsigned start, unsigned count, void **states)
{
   struct si_context *sctx = (struct si_context *)ctx;
   struct si_samplers *samplers = &sctx->samplers[shader];
   struct si_descriptors *desc = si_sampler_and_image_descriptors(sctx, shader);
   struct si_sampler_state **sstates = (struct si_sampler_state **)states;
   int i;

   if (!count || shader >= SI_NUM_SHADERS || !sstates)
      return;

   for (i = 0; i < count; i++) {
      unsigned slot = start + i;
      unsigned desc_slot = si_get_sampler_slot(slot);

      if (!sstates[i] || sstates[i] == samplers->sampler_states[slot])
         continue;

#ifndef NDEBUG
      assert(sstates[i]->magic == SI_SAMPLER_STATE_MAGIC);
#endif
      samplers->sampler_states[slot] = sstates[i];

      /* If FMASK is bound, don't overwrite it.
       * The sampler state will be set after FMASK is unbound.
       */
      struct si_sampler_view *sview = (struct si_sampler_view *)samplers->views[slot];

      struct si_texture *tex = NULL;

      if (sview && sview->base.texture && sview->base.texture->target != PIPE_BUFFER)
         tex = (struct si_texture *)sview->base.texture;

      if (tex && tex->surface.fmask_size)
         continue;

      si_set_sampler_state_desc(sstates[i], sview, tex, desc->list + desc_slot * 16 + 12);

      sctx->descriptors_dirty |= 1u << si_sampler_and_image_descriptors_idx(shader);
   }
}

/* BUFFER RESOURCES */

static void si_init_buffer_resources(struct si_buffer_resources *buffers,
                                     struct si_descriptors *descs, unsigned num_buffers,
                                     short shader_userdata_rel_index,
                                     enum radeon_bo_priority priority,
                                     enum radeon_bo_priority priority_constbuf)
{
   buffers->priority = priority;
   buffers->priority_constbuf = priority_constbuf;
   buffers->buffers = CALLOC(num_buffers, sizeof(struct pipe_resource *));
   buffers->offsets = CALLOC(num_buffers, sizeof(buffers->offsets[0]));

   si_init_descriptors(descs, shader_userdata_rel_index, 4, num_buffers);
}

static void si_release_buffer_resources(struct si_buffer_resources *buffers,
                                        struct si_descriptors *descs)
{
   int i;

   for (i = 0; i < descs->num_elements; i++) {
      pipe_resource_reference(&buffers->buffers[i], NULL);
   }

   FREE(buffers->buffers);
   FREE(buffers->offsets);
}

static void si_buffer_resources_begin_new_cs(struct si_context *sctx,
                                             struct si_buffer_resources *buffers)
{
   unsigned mask = buffers->enabled_mask;

   /* Add buffers to the CS. */
   while (mask) {
      int i = u_bit_scan(&mask);

      radeon_add_to_buffer_list(
         sctx, sctx->gfx_cs, si_resource(buffers->buffers[i]),
         buffers->writable_mask & (1u << i) ? RADEON_USAGE_READWRITE : RADEON_USAGE_READ,
         i < SI_NUM_SHADER_BUFFERS ? buffers->priority : buffers->priority_constbuf);
   }
}

static bool si_buffer_resources_check_encrypted(struct si_context *sctx,
                                                struct si_buffer_resources *buffers)
{
   unsigned mask = buffers->enabled_mask;

   while (mask) {
      int i = u_bit_scan(&mask);

      /* only check for reads */
      if ((buffers->writable_mask & (1u << i)) == 0 &&
          (si_resource(buffers->buffers[i])->flags & RADEON_FLAG_ENCRYPTED))
         return true;
   }

   return false;
}

static void si_get_buffer_from_descriptors(struct si_buffer_resources *buffers,
                                           struct si_descriptors *descs, unsigned idx,
                                           struct pipe_resource **buf, unsigned *offset,
                                           unsigned *size)
{
   pipe_resource_reference(buf, buffers->buffers[idx]);
   if (*buf) {
      struct si_resource *res = si_resource(*buf);
      const uint32_t *desc = descs->list + idx * 4;
      uint64_t va;

      *size = desc[2];

      assert(G_008F04_STRIDE(desc[1]) == 0);
      va = si_desc_extract_buffer_address(desc);

      assert(va >= res->gpu_address && va + *size <= res->gpu_address + res->bo_size);
      *offset = va - res->gpu_address;
   }
}

/* VERTEX BUFFERS */

static void si_vertex_buffers_begin_new_cs(struct si_context *sctx)
{
   int count = sctx->num_vertex_elements;
   int i;

   for (i = 0; i < count; i++) {
      int vb = sctx->vertex_elements->vertex_buffer_index[i];

      if (vb >= ARRAY_SIZE(sctx->vertex_buffer))
         continue;
      if (!sctx->vertex_buffer[vb].buffer.resource)
         continue;

      radeon_add_to_buffer_list(sctx, sctx->gfx_cs,
                                si_resource(sctx->vertex_buffer[vb].buffer.resource),
                                RADEON_USAGE_READ, RADEON_PRIO_VERTEX_BUFFER);
   }

   if (!sctx->vb_descriptors_buffer)
      return;
   radeon_add_to_buffer_list(sctx, sctx->gfx_cs, sctx->vb_descriptors_buffer, RADEON_USAGE_READ,
                             RADEON_PRIO_DESCRIPTORS);
}

bool si_upload_vertex_buffer_descriptors(struct si_context *sctx)
{
   unsigned i, count = sctx->num_vertex_elements;
   uint32_t *ptr;

   if (!sctx->vertex_buffers_dirty || !count)
      return true;

   struct si_vertex_elements *velems = sctx->vertex_elements;
   unsigned alloc_size = velems->vb_desc_list_alloc_size;

   if (alloc_size) {
      /* Vertex buffer descriptors are the only ones which are uploaded
       * directly through a staging buffer and don't go through
       * the fine-grained upload path.
       */
      u_upload_alloc(sctx->b.const_uploader, 0, alloc_size,
                     si_optimal_tcc_alignment(sctx, alloc_size), &sctx->vb_descriptors_offset,
                     (struct pipe_resource **)&sctx->vb_descriptors_buffer, (void **)&ptr);
      if (!sctx->vb_descriptors_buffer) {
         sctx->vb_descriptors_offset = 0;
         sctx->vb_descriptors_gpu_list = NULL;
         return false;
      }

      sctx->vb_descriptors_gpu_list = ptr;
      radeon_add_to_buffer_list(sctx, sctx->gfx_cs, sctx->vb_descriptors_buffer, RADEON_USAGE_READ,
                                RADEON_PRIO_DESCRIPTORS);
      sctx->vertex_buffer_pointer_dirty = true;
      sctx->prefetch_L2_mask |= SI_PREFETCH_VBO_DESCRIPTORS;
   } else {
      si_resource_reference(&sctx->vb_descriptors_buffer, NULL);
      sctx->vertex_buffer_pointer_dirty = false;
      sctx->prefetch_L2_mask &= ~SI_PREFETCH_VBO_DESCRIPTORS;
   }

   assert(count <= SI_MAX_ATTRIBS);

   unsigned first_vb_use_mask = velems->first_vb_use_mask;
   unsigned num_vbos_in_user_sgprs = sctx->screen->num_vbos_in_user_sgprs;

   for (i = 0; i < count; i++) {
      struct pipe_vertex_buffer *vb;
      struct si_resource *buf;
      unsigned vbo_index = velems->vertex_buffer_index[i];
      uint32_t *desc = i < num_vbos_in_user_sgprs ? &sctx->vb_descriptor_user_sgprs[i * 4]
                                                  : &ptr[(i - num_vbos_in_user_sgprs) * 4];

      vb = &sctx->vertex_buffer[vbo_index];
      buf = si_resource(vb->buffer.resource);
      if (!buf) {
         memset(desc, 0, 16);
         continue;
      }

      int64_t offset = (int64_t)((int)vb->buffer_offset) + velems->src_offset[i];

      if (offset >= buf->b.b.width0) {
         assert(offset < buf->b.b.width0);
         memset(desc, 0, 16);
         continue;
      }

      uint64_t va = buf->gpu_address + offset;

      int64_t num_records = (int64_t)buf->b.b.width0 - offset;
      if (sctx->chip_class != GFX8 && vb->stride) {
         /* Round up by rounding down and adding 1 */
         num_records = (num_records - velems->format_size[i]) / vb->stride + 1;
      }
      assert(num_records >= 0 && num_records <= UINT_MAX);

      uint32_t rsrc_word3 = velems->rsrc_word3[i];

      /* OOB_SELECT chooses the out-of-bounds check:
       *  - 1: index >= NUM_RECORDS (Structured)
       *  - 3: offset >= NUM_RECORDS (Raw)
       */
      if (sctx->chip_class >= GFX10)
         rsrc_word3 |= S_008F0C_OOB_SELECT(vb->stride ? V_008F0C_OOB_SELECT_STRUCTURED
                                                      : V_008F0C_OOB_SELECT_RAW);

      desc[0] = va;
      desc[1] = S_008F04_BASE_ADDRESS_HI(va >> 32) | S_008F04_STRIDE(vb->stride);
      desc[2] = num_records;
      desc[3] = rsrc_word3;

      if (first_vb_use_mask & (1 << i)) {
         radeon_add_to_buffer_list(sctx, sctx->gfx_cs, si_resource(vb->buffer.resource),
                                   RADEON_USAGE_READ, RADEON_PRIO_VERTEX_BUFFER);
      }
   }

   /* Don't flush the const cache. It would have a very negative effect
    * on performance (confirmed by testing). New descriptors are always
    * uploaded to a fresh new buffer, so I don't think flushing the const
    * cache is needed. */
   si_mark_atom_dirty(sctx, &sctx->atoms.s.shader_pointers);
   sctx->vertex_buffer_user_sgprs_dirty = num_vbos_in_user_sgprs > 0;
   sctx->vertex_buffers_dirty = false;
   return true;
}

/* CONSTANT BUFFERS */

static struct si_descriptors *si_const_and_shader_buffer_descriptors(struct si_context *sctx,
                                                                     unsigned shader)
{
   return &sctx->descriptors[si_const_and_shader_buffer_descriptors_idx(shader)];
}

void si_upload_const_buffer(struct si_context *sctx, struct si_resource **buf, const uint8_t *ptr,
                            unsigned size, uint32_t *const_offset)
{
   void *tmp;

   u_upload_alloc(sctx->b.const_uploader, 0, size, si_optimal_tcc_alignment(sctx, size),
                  const_offset, (struct pipe_resource **)buf, &tmp);
   if (*buf)
      util_memcpy_cpu_to_le32(tmp, ptr, size);
}

static void si_set_constant_buffer(struct si_context *sctx, struct si_buffer_resources *buffers,
                                   unsigned descriptors_idx, uint slot,
                                   const struct pipe_constant_buffer *input)
{
   struct si_descriptors *descs = &sctx->descriptors[descriptors_idx];
   assert(slot < descs->num_elements);
   pipe_resource_reference(&buffers->buffers[slot], NULL);

   /* GFX7 cannot unbind a constant buffer (S_BUFFER_LOAD is buggy
    * with a NULL buffer). We need to use a dummy buffer instead. */
   if (sctx->chip_class == GFX7 && (!input || (!input->buffer && !input->user_buffer)))
      input = &sctx->null_const_buf;

   if (input && (input->buffer || input->user_buffer)) {
      struct pipe_resource *buffer = NULL;
      uint64_t va;
      unsigned buffer_offset;

      /* Upload the user buffer if needed. */
      if (input->user_buffer) {
         si_upload_const_buffer(sctx, (struct si_resource **)&buffer, input->user_buffer,
                                input->buffer_size, &buffer_offset);
         if (!buffer) {
            /* Just unbind on failure. */
            si_set_constant_buffer(sctx, buffers, descriptors_idx, slot, NULL);
            return;
         }
      } else {
         pipe_resource_reference(&buffer, input->buffer);
         buffer_offset = input->buffer_offset;
      }

      va = si_resource(buffer)->gpu_address + buffer_offset;

      /* Set the descriptor. */
      uint32_t *desc = descs->list + slot * 4;
      desc[0] = va;
      desc[1] = S_008F04_BASE_ADDRESS_HI(va >> 32) | S_008F04_STRIDE(0);
      desc[2] = input->buffer_size;
      desc[3] = S_008F0C_DST_SEL_X(V_008F0C_SQ_SEL_X) | S_008F0C_DST_SEL_Y(V_008F0C_SQ_SEL_Y) |
                S_008F0C_DST_SEL_Z(V_008F0C_SQ_SEL_Z) | S_008F0C_DST_SEL_W(V_008F0C_SQ_SEL_W);

      if (sctx->chip_class >= GFX10) {
         desc[3] |= S_008F0C_FORMAT(V_008F0C_IMG_FORMAT_32_FLOAT) |
                    S_008F0C_OOB_SELECT(V_008F0C_OOB_SELECT_RAW) | S_008F0C_RESOURCE_LEVEL(1);
      } else {
         desc[3] |= S_008F0C_NUM_FORMAT(V_008F0C_BUF_NUM_FORMAT_FLOAT) |
                    S_008F0C_DATA_FORMAT(V_008F0C_BUF_DATA_FORMAT_32);
      }

      buffers->buffers[slot] = buffer;
      buffers->offsets[slot] = buffer_offset;
      radeon_add_to_gfx_buffer_list_check_mem(sctx, si_resource(buffer), RADEON_USAGE_READ,
                                              buffers->priority_constbuf, true);
      buffers->enabled_mask |= 1u << slot;
   } else {
      /* Clear the descriptor. */
      memset(descs->list + slot * 4, 0, sizeof(uint32_t) * 4);
      buffers->enabled_mask &= ~(1u << slot);
   }

   sctx->descriptors_dirty |= 1u << descriptors_idx;
}

static void si_pipe_set_constant_buffer(struct pipe_context *ctx, enum pipe_shader_type shader,
                                        uint slot, const struct pipe_constant_buffer *input)
{
   struct si_context *sctx = (struct si_context *)ctx;

   if (shader >= SI_NUM_SHADERS)
      return;

   if (slot == 0 && input && input->buffer &&
       !(si_resource(input->buffer)->flags & RADEON_FLAG_32BIT)) {
      assert(!"constant buffer 0 must have a 32-bit VM address, use const_uploader");
      return;
   }

   if (input && input->buffer)
      si_resource(input->buffer)->bind_history |= PIPE_BIND_CONSTANT_BUFFER;

   slot = si_get_constbuf_slot(slot);
   si_set_constant_buffer(sctx, &sctx->const_and_shader_buffers[shader],
                          si_const_and_shader_buffer_descriptors_idx(shader), slot, input);
}

void si_get_pipe_constant_buffer(struct si_context *sctx, uint shader, uint slot,
                                 struct pipe_constant_buffer *cbuf)
{
   cbuf->user_buffer = NULL;
   si_get_buffer_from_descriptors(
      &sctx->const_and_shader_buffers[shader], si_const_and_shader_buffer_descriptors(sctx, shader),
      si_get_constbuf_slot(slot), &cbuf->buffer, &cbuf->buffer_offset, &cbuf->buffer_size);
}

/* SHADER BUFFERS */

static void si_set_shader_buffer(struct si_context *sctx, struct si_buffer_resources *buffers,
                                 unsigned descriptors_idx, uint slot,
                                 const struct pipe_shader_buffer *sbuffer, bool writable,
                                 enum radeon_bo_priority priority)
{
   struct si_descriptors *descs = &sctx->descriptors[descriptors_idx];
   uint32_t *desc = descs->list + slot * 4;

   if (!sbuffer || !sbuffer->buffer) {
      pipe_resource_reference(&buffers->buffers[slot], NULL);
      memset(desc, 0, sizeof(uint32_t) * 4);
      buffers->enabled_mask &= ~(1u << slot);
      buffers->writable_mask &= ~(1u << slot);
      sctx->descriptors_dirty |= 1u << descriptors_idx;
      return;
   }

   struct si_resource *buf = si_resource(sbuffer->buffer);
   uint64_t va = buf->gpu_address + sbuffer->buffer_offset;

   desc[0] = va;
   desc[1] = S_008F04_BASE_ADDRESS_HI(va >> 32) | S_008F04_STRIDE(0);
   desc[2] = sbuffer->buffer_size;
   desc[3] = S_008F0C_DST_SEL_X(V_008F0C_SQ_SEL_X) | S_008F0C_DST_SEL_Y(V_008F0C_SQ_SEL_Y) |
             S_008F0C_DST_SEL_Z(V_008F0C_SQ_SEL_Z) | S_008F0C_DST_SEL_W(V_008F0C_SQ_SEL_W);

   if (sctx->chip_class >= GFX10) {
      desc[3] |= S_008F0C_FORMAT(V_008F0C_IMG_FORMAT_32_FLOAT) |
                 S_008F0C_OOB_SELECT(V_008F0C_OOB_SELECT_RAW) | S_008F0C_RESOURCE_LEVEL(1);
   } else {
      desc[3] |= S_008F0C_NUM_FORMAT(V_008F0C_BUF_NUM_FORMAT_FLOAT) |
                 S_008F0C_DATA_FORMAT(V_008F0C_BUF_DATA_FORMAT_32);
   }

   pipe_resource_reference(&buffers->buffers[slot], &buf->b.b);
   buffers->offsets[slot] = sbuffer->buffer_offset;
   radeon_add_to_gfx_buffer_list_check_mem(
      sctx, buf, writable ? RADEON_USAGE_READWRITE : RADEON_USAGE_READ, priority, true);
   if (writable)
      buffers->writable_mask |= 1u << slot;
   else
      buffers->writable_mask &= ~(1u << slot);

   buffers->enabled_mask |= 1u << slot;
   sctx->descriptors_dirty |= 1u << descriptors_idx;

   util_range_add(&buf->b.b, &buf->valid_buffer_range, sbuffer->buffer_offset,
                  sbuffer->buffer_offset + sbuffer->buffer_size);
}

static void si_set_shader_buffers(struct pipe_context *ctx, enum pipe_shader_type shader,
                                  unsigned start_slot, unsigned count,
                                  const struct pipe_shader_buffer *sbuffers,
                                  unsigned writable_bitmask)
{
   struct si_context *sctx = (struct si_context *)ctx;
   struct si_buffer_resources *buffers = &sctx->const_and_shader_buffers[shader];
   unsigned descriptors_idx = si_const_and_shader_buffer_descriptors_idx(shader);
   unsigned i;

   assert(start_slot + count <= SI_NUM_SHADER_BUFFERS);

   if (shader == PIPE_SHADER_COMPUTE &&
       sctx->cs_shader_state.program &&
       start_slot < sctx->cs_shader_state.program->sel.cs_num_shaderbufs_in_user_sgprs)
      sctx->compute_shaderbuf_sgprs_dirty = true;

   for (i = 0; i < count; ++i) {
      const struct pipe_shader_buffer *sbuffer = sbuffers ? &sbuffers[i] : NULL;
      unsigned slot = si_get_shaderbuf_slot(start_slot + i);

      if (sbuffer && sbuffer->buffer)
         si_resource(sbuffer->buffer)->bind_history |= PIPE_BIND_SHADER_BUFFER;

      si_set_shader_buffer(sctx, buffers, descriptors_idx, slot, sbuffer,
                           !!(writable_bitmask & (1u << i)), buffers->priority);
   }
}

void si_get_shader_buffers(struct si_context *sctx, enum pipe_shader_type shader, uint start_slot,
                           uint count, struct pipe_shader_buffer *sbuf)
{
   struct si_buffer_resources *buffers = &sctx->const_and_shader_buffers[shader];
   struct si_descriptors *descs = si_const_and_shader_buffer_descriptors(sctx, shader);

   for (unsigned i = 0; i < count; ++i) {
      si_get_buffer_from_descriptors(buffers, descs, si_get_shaderbuf_slot(start_slot + i),
                                     &sbuf[i].buffer, &sbuf[i].buffer_offset, &sbuf[i].buffer_size);
   }
}

/* RING BUFFERS */

void si_set_rw_buffer(struct si_context *sctx, uint slot, const struct pipe_constant_buffer *input)
{
   si_set_constant_buffer(sctx, &sctx->rw_buffers, SI_DESCS_RW_BUFFERS, slot, input);
}

void si_set_rw_shader_buffer(struct si_context *sctx, uint slot,
                             const struct pipe_shader_buffer *sbuffer)
{
   si_set_shader_buffer(sctx, &sctx->rw_buffers, SI_DESCS_RW_BUFFERS, slot, sbuffer, true,
                        RADEON_PRIO_SHADER_RW_BUFFER);
}

void si_set_ring_buffer(struct si_context *sctx, uint slot, struct pipe_resource *buffer,
                        unsigned stride, unsigned num_records, bool add_tid, bool swizzle,
                        unsigned element_size, unsigned index_stride, uint64_t offset)
{
   struct si_buffer_resources *buffers = &sctx->rw_buffers;
   struct si_descriptors *descs = &sctx->descriptors[SI_DESCS_RW_BUFFERS];

   /* The stride field in the resource descriptor has 14 bits */
   assert(stride < (1 << 14));

   assert(slot < descs->num_elements);
   pipe_resource_reference(&buffers->buffers[slot], NULL);

   if (buffer) {
      uint64_t va;

      va = si_resource(buffer)->gpu_address + offset;

      switch (element_size) {
      default:
         assert(!"Unsupported ring buffer element size");
      case 0:
      case 2:
         element_size = 0;
         break;
      case 4:
         element_size = 1;
         break;
      case 8:
         element_size = 2;
         break;
      case 16:
         element_size = 3;
         break;
      }

      switch (index_stride) {
      default:
         assert(!"Unsupported ring buffer index stride");
      case 0:
      case 8:
         index_stride = 0;
         break;
      case 16:
         index_stride = 1;
         break;
      case 32:
         index_stride = 2;
         break;
      case 64:
         index_stride = 3;
         break;
      }

      if (sctx->chip_class >= GFX8 && stride)
         num_records *= stride;

      /* Set the descriptor. */
      uint32_t *desc = descs->list + slot * 4;
      desc[0] = va;
      desc[1] = S_008F04_BASE_ADDRESS_HI(va >> 32) | S_008F04_STRIDE(stride) |
                S_008F04_SWIZZLE_ENABLE(swizzle);
      desc[2] = num_records;
      desc[3] = S_008F0C_DST_SEL_X(V_008F0C_SQ_SEL_X) | S_008F0C_DST_SEL_Y(V_008F0C_SQ_SEL_Y) |
                S_008F0C_DST_SEL_Z(V_008F0C_SQ_SEL_Z) | S_008F0C_DST_SEL_W(V_008F0C_SQ_SEL_W) |
                S_008F0C_INDEX_STRIDE(index_stride) | S_008F0C_ADD_TID_ENABLE(add_tid);

      if (sctx->chip_class >= GFX9)
         assert(!swizzle || element_size == 1); /* always 4 bytes on GFX9 */
      else
         desc[3] |= S_008F0C_ELEMENT_SIZE(element_size);

      if (sctx->chip_class >= GFX10) {
         desc[3] |= S_008F0C_FORMAT(V_008F0C_IMG_FORMAT_32_FLOAT) |
                    S_008F0C_OOB_SELECT(V_008F0C_OOB_SELECT_DISABLED) | S_008F0C_RESOURCE_LEVEL(1);
      } else {
         desc[3] |= S_008F0C_NUM_FORMAT(V_008F0C_BUF_NUM_FORMAT_FLOAT) |
                    S_008F0C_DATA_FORMAT(V_008F0C_BUF_DATA_FORMAT_32);
      }

      pipe_resource_reference(&buffers->buffers[slot], buffer);
      radeon_add_to_buffer_list(sctx, sctx->gfx_cs, si_resource(buffer), RADEON_USAGE_READWRITE,
                                buffers->priority);
      buffers->enabled_mask |= 1u << slot;
   } else {
      /* Clear the descriptor. */
      memset(descs->list + slot * 4, 0, sizeof(uint32_t) * 4);
      buffers->enabled_mask &= ~(1u << slot);
   }

   sctx->descriptors_dirty |= 1u << SI_DESCS_RW_BUFFERS;
}

/* INTERNAL CONST BUFFERS */

static void si_set_polygon_stipple(struct pipe_context *ctx, const struct pipe_poly_stipple *state)
{
   struct si_context *sctx = (struct si_context *)ctx;
   struct pipe_constant_buffer cb = {};
   unsigned stipple[32];
   int i;

   for (i = 0; i < 32; i++)
      stipple[i] = util_bitreverse(state->stipple[i]);

   cb.user_buffer = stipple;
   cb.buffer_size = sizeof(stipple);

   si_set_rw_buffer(sctx, SI_PS_CONST_POLY_STIPPLE, &cb);
}

/* TEXTURE METADATA ENABLE/DISABLE */

static void si_resident_handles_update_needs_color_decompress(struct si_context *sctx)
{
   util_dynarray_clear(&sctx->resident_tex_needs_color_decompress);
   util_dynarray_clear(&sctx->resident_img_needs_color_decompress);

   util_dynarray_foreach (&sctx->resident_tex_handles, struct si_texture_handle *, tex_handle) {
      struct pipe_resource *res = (*tex_handle)->view->texture;
      struct si_texture *tex;

      if (!res || res->target == PIPE_BUFFER)
         continue;

      tex = (struct si_texture *)res;
      if (!color_needs_decompression(tex))
         continue;

      util_dynarray_append(&sctx->resident_tex_needs_color_decompress, struct si_texture_handle *,
                           *tex_handle);
   }

   util_dynarray_foreach (&sctx->resident_img_handles, struct si_image_handle *, img_handle) {
      struct pipe_image_view *view = &(*img_handle)->view;
      struct pipe_resource *res = view->resource;
      struct si_texture *tex;

      if (!res || res->target == PIPE_BUFFER)
         continue;

      tex = (struct si_texture *)res;
      if (!color_needs_decompression(tex))
         continue;

      util_dynarray_append(&sctx->resident_img_needs_color_decompress, struct si_image_handle *,
                           *img_handle);
   }
}

/* CMASK can be enabled (for fast clear) and disabled (for texture export)
 * while the texture is bound, possibly by a different context. In that case,
 * call this function to update needs_*_decompress_masks.
 */
void si_update_needs_color_decompress_masks(struct si_context *sctx)
{
   for (int i = 0; i < SI_NUM_SHADERS; ++i) {
      si_samplers_update_needs_color_decompress_mask(&sctx->samplers[i]);
      si_images_update_needs_color_decompress_mask(&sctx->images[i]);
      si_update_shader_needs_decompress_mask(sctx, i);
   }

   si_resident_handles_update_needs_color_decompress(sctx);
}

/* BUFFER DISCARD/INVALIDATION */

/* Reset descriptors of buffer resources after \p buf has been invalidated.
 * If buf == NULL, reset all descriptors.
 */
static void si_reset_buffer_resources(struct si_context *sctx, struct si_buffer_resources *buffers,
                                      unsigned descriptors_idx, unsigned slot_mask,
                                      struct pipe_resource *buf, enum radeon_bo_priority priority)
{
   struct si_descriptors *descs = &sctx->descriptors[descriptors_idx];
   unsigned mask = buffers->enabled_mask & slot_mask;

   while (mask) {
      unsigned i = u_bit_scan(&mask);
      struct pipe_resource *buffer = buffers->buffers[i];

      if (buffer && (!buf || buffer == buf)) {
         si_set_buf_desc_address(si_resource(buffer), buffers->offsets[i], descs->list + i * 4);
         sctx->descriptors_dirty |= 1u << descriptors_idx;

         radeon_add_to_gfx_buffer_list_check_mem(
            sctx, si_resource(buffer),
            buffers->writable_mask & (1u << i) ? RADEON_USAGE_READWRITE : RADEON_USAGE_READ,
            priority, true);
      }
   }
}

/* Update all buffer bindings where the buffer is bound, including
 * all resource descriptors. This is invalidate_buffer without
 * the invalidation.
 *
 * If buf == NULL, update all buffer bindings.
 */
void si_rebind_buffer(struct si_context *sctx, struct pipe_resource *buf)
{
   struct si_resource *buffer = si_resource(buf);
   unsigned i, shader;
   unsigned num_elems = sctx->num_vertex_elements;

   /* We changed the buffer, now we need to bind it where the old one
    * was bound. This consists of 2 things:
    *   1) Updating the resource descriptor and dirtying it.
    *   2) Adding a relocation to the CS, so that it's usable.
    */

   /* Vertex buffers. */
   if (!buffer) {
      if (num_elems)
         sctx->vertex_buffers_dirty = true;
   } else if (buffer->bind_history & PIPE_BIND_VERTEX_BUFFER) {
      for (i = 0; i < num_elems; i++) {
         int vb = sctx->vertex_elements->vertex_buffer_index[i];

         if (vb >= ARRAY_SIZE(sctx->vertex_buffer))
            continue;
         if (!sctx->vertex_buffer[vb].buffer.resource)
            continue;

         if (sctx->vertex_buffer[vb].buffer.resource == buf) {
            sctx->vertex_buffers_dirty = true;
            break;
         }
      }
   }

   /* Streamout buffers. (other internal buffers can't be invalidated) */
   if (!buffer || buffer->bind_history & PIPE_BIND_STREAM_OUTPUT) {
      for (i = SI_VS_STREAMOUT_BUF0; i <= SI_VS_STREAMOUT_BUF3; i++) {
         struct si_buffer_resources *buffers = &sctx->rw_buffers;
         struct si_descriptors *descs = &sctx->descriptors[SI_DESCS_RW_BUFFERS];
         struct pipe_resource *buffer = buffers->buffers[i];

         if (!buffer || (buf && buffer != buf))
            continue;

         si_set_buf_desc_address(si_resource(buffer), buffers->offsets[i], descs->list + i * 4);
         sctx->descriptors_dirty |= 1u << SI_DESCS_RW_BUFFERS;

         radeon_add_to_gfx_buffer_list_check_mem(sctx, si_resource(buffer), RADEON_USAGE_WRITE,
                                                 RADEON_PRIO_SHADER_RW_BUFFER, true);

         /* Update the streamout state. */
         if (sctx->streamout.begin_emitted)
            si_emit_streamout_end(sctx);
         sctx->streamout.append_bitmask = sctx->streamout.enabled_mask;
         si_streamout_buffers_dirty(sctx);
      }
   }

   /* Constant and shader buffers. */
   if (!buffer || buffer->bind_history & PIPE_BIND_CONSTANT_BUFFER) {
      for (shader = 0; shader < SI_NUM_SHADERS; shader++)
         si_reset_buffer_resources(sctx, &sctx->const_and_shader_buffers[shader],
                                   si_const_and_shader_buffer_descriptors_idx(shader),
                                   u_bit_consecutive(SI_NUM_SHADER_BUFFERS, SI_NUM_CONST_BUFFERS),
                                   buf, sctx->const_and_shader_buffers[shader].priority_constbuf);
   }

   if (!buffer || buffer->bind_history & PIPE_BIND_SHADER_BUFFER) {
      for (shader = 0; shader < SI_NUM_SHADERS; shader++)
         si_reset_buffer_resources(sctx, &sctx->const_and_shader_buffers[shader],
                                   si_const_and_shader_buffer_descriptors_idx(shader),
                                   u_bit_consecutive(0, SI_NUM_SHADER_BUFFERS), buf,
                                   sctx->const_and_shader_buffers[shader].priority);
   }

   if (!buffer || buffer->bind_history & PIPE_BIND_SAMPLER_VIEW) {
      /* Texture buffers - update bindings. */
      for (shader = 0; shader < SI_NUM_SHADERS; shader++) {
         struct si_samplers *samplers = &sctx->samplers[shader];
         struct si_descriptors *descs = si_sampler_and_image_descriptors(sctx, shader);
         unsigned mask = samplers->enabled_mask;

         while (mask) {
            unsigned i = u_bit_scan(&mask);
            struct pipe_resource *buffer = samplers->views[i]->texture;

            if (buffer && buffer->target == PIPE_BUFFER && (!buf || buffer == buf)) {
               unsigned desc_slot = si_get_sampler_slot(i);

               si_set_buf_desc_address(si_resource(buffer), samplers->views[i]->u.buf.offset,
                                       descs->list + desc_slot * 16 + 4);
               sctx->descriptors_dirty |= 1u << si_sampler_and_image_descriptors_idx(shader);

               radeon_add_to_gfx_buffer_list_check_mem(sctx, si_resource(buffer), RADEON_USAGE_READ,
                                                       RADEON_PRIO_SAMPLER_BUFFER, true);
            }
         }
      }
   }

   /* Shader images */
   if (!buffer || buffer->bind_history & PIPE_BIND_SHADER_IMAGE) {
      for (shader = 0; shader < SI_NUM_SHADERS; ++shader) {
         struct si_images *images = &sctx->images[shader];
         struct si_descriptors *descs = si_sampler_and_image_descriptors(sctx, shader);
         unsigned mask = images->enabled_mask;

         while (mask) {
            unsigned i = u_bit_scan(&mask);
            struct pipe_resource *buffer = images->views[i].resource;

            if (buffer && buffer->target == PIPE_BUFFER && (!buf || buffer == buf)) {
               unsigned desc_slot = si_get_image_slot(i);

               if (images->views[i].access & PIPE_IMAGE_ACCESS_WRITE)
                  si_mark_image_range_valid(&images->views[i]);

               si_set_buf_desc_address(si_resource(buffer), images->views[i].u.buf.offset,
                                       descs->list + desc_slot * 8 + 4);
               sctx->descriptors_dirty |= 1u << si_sampler_and_image_descriptors_idx(shader);

               radeon_add_to_gfx_buffer_list_check_mem(sctx, si_resource(buffer),
                                                       RADEON_USAGE_READWRITE,
                                                       RADEON_PRIO_SAMPLER_BUFFER, true);
            }
         }
      }
   }

   /* Bindless texture handles */
   if (!buffer || buffer->texture_handle_allocated) {
      struct si_descriptors *descs = &sctx->bindless_descriptors;

      util_dynarray_foreach (&sctx->resident_tex_handles, struct si_texture_handle *, tex_handle) {
         struct pipe_sampler_view *view = (*tex_handle)->view;
         unsigned desc_slot = (*tex_handle)->desc_slot;
         struct pipe_resource *buffer = view->texture;

         if (buffer && buffer->target == PIPE_BUFFER && (!buf || buffer == buf)) {
            si_set_buf_desc_address(si_resource(buffer), view->u.buf.offset,
                                    descs->list + desc_slot * 16 + 4);

            (*tex_handle)->desc_dirty = true;
            sctx->bindless_descriptors_dirty = true;

            radeon_add_to_gfx_buffer_list_check_mem(sctx, si_resource(buffer), RADEON_USAGE_READ,
                                                    RADEON_PRIO_SAMPLER_BUFFER, true);
         }
      }
   }

   /* Bindless image handles */
   if (!buffer || buffer->image_handle_allocated) {
      struct si_descriptors *descs = &sctx->bindless_descriptors;

      util_dynarray_foreach (&sctx->resident_img_handles, struct si_image_handle *, img_handle) {
         struct pipe_image_view *view = &(*img_handle)->view;
         unsigned desc_slot = (*img_handle)->desc_slot;
         struct pipe_resource *buffer = view->resource;

         if (buffer && buffer->target == PIPE_BUFFER && (!buf || buffer == buf)) {
            if (view->access & PIPE_IMAGE_ACCESS_WRITE)
               si_mark_image_range_valid(view);

            si_set_buf_desc_address(si_resource(buffer), view->u.buf.offset,
                                    descs->list + desc_slot * 16 + 4);

            (*img_handle)->desc_dirty = true;
            sctx->bindless_descriptors_dirty = true;

            radeon_add_to_gfx_buffer_list_check_mem(
               sctx, si_resource(buffer), RADEON_USAGE_READWRITE, RADEON_PRIO_SAMPLER_BUFFER, true);
         }
      }
   }

   if (buffer) {
      /* Do the same for other contexts. They will invoke this function
       * with buffer == NULL.
       */
      unsigned new_counter = p_atomic_inc_return(&sctx->screen->dirty_buf_counter);

      /* Skip the update for the current context, because we have already updated
       * the buffer bindings.
       */
      if (new_counter == sctx->last_dirty_buf_counter + 1)
         sctx->last_dirty_buf_counter = new_counter;
   }
}

static void si_upload_bindless_descriptor(struct si_context *sctx, unsigned desc_slot,
                                          unsigned num_dwords)
{
   struct si_descriptors *desc = &sctx->bindless_descriptors;
   unsigned desc_slot_offset = desc_slot * 16;
   uint32_t *data;
   uint64_t va;

   data = desc->list + desc_slot_offset;
   va = desc->gpu_address + desc_slot_offset * 4;

   si_cp_write_data(sctx, desc->buffer, va - desc->buffer->gpu_address, num_dwords * 4, V_370_TC_L2,
                    V_370_ME, data);
}

static void si_upload_bindless_descriptors(struct si_context *sctx)
{
   if (!sctx->bindless_descriptors_dirty)
      return;

   /* Wait for graphics/compute to be idle before updating the resident
    * descriptors directly in memory, in case the GPU is using them.
    */
   sctx->flags |= SI_CONTEXT_PS_PARTIAL_FLUSH | SI_CONTEXT_CS_PARTIAL_FLUSH;
   sctx->emit_cache_flush(sctx);

   util_dynarray_foreach (&sctx->resident_tex_handles, struct si_texture_handle *, tex_handle) {
      unsigned desc_slot = (*tex_handle)->desc_slot;

      if (!(*tex_handle)->desc_dirty)
         continue;

      si_upload_bindless_descriptor(sctx, desc_slot, 16);
      (*tex_handle)->desc_dirty = false;
   }

   util_dynarray_foreach (&sctx->resident_img_handles, struct si_image_handle *, img_handle) {
      unsigned desc_slot = (*img_handle)->desc_slot;

      if (!(*img_handle)->desc_dirty)
         continue;

      si_upload_bindless_descriptor(sctx, desc_slot, 8);
      (*img_handle)->desc_dirty = false;
   }

   /* Invalidate L1 because it doesn't know that L2 changed. */
   sctx->flags |= SI_CONTEXT_INV_SCACHE;
   sctx->emit_cache_flush(sctx);

   sctx->bindless_descriptors_dirty = false;
}

/* Update mutable image descriptor fields of all resident textures. */
static void si_update_bindless_texture_descriptor(struct si_context *sctx,
                                                  struct si_texture_handle *tex_handle)
{
   struct si_sampler_view *sview = (struct si_sampler_view *)tex_handle->view;
   struct si_descriptors *desc = &sctx->bindless_descriptors;
   unsigned desc_slot_offset = tex_handle->desc_slot * 16;
   uint32_t desc_list[16];

   if (sview->base.texture->target == PIPE_BUFFER)
      return;

   memcpy(desc_list, desc->list + desc_slot_offset, sizeof(desc_list));
   si_set_sampler_view_desc(sctx, sview, &tex_handle->sstate, desc->list + desc_slot_offset);

   if (memcmp(desc_list, desc->list + desc_slot_offset, sizeof(desc_list))) {
      tex_handle->desc_dirty = true;
      sctx->bindless_descriptors_dirty = true;
   }
}

static void si_update_bindless_image_descriptor(struct si_context *sctx,
                                                struct si_image_handle *img_handle)
{
   struct si_descriptors *desc = &sctx->bindless_descriptors;
   unsigned desc_slot_offset = img_handle->desc_slot * 16;
   struct pipe_image_view *view = &img_handle->view;
   struct pipe_resource *res = view->resource;
   uint32_t image_desc[16];
   unsigned desc_size = (res->nr_samples >= 2 ? 16 : 8) * 4;

   if (res->target == PIPE_BUFFER)
      return;

   memcpy(image_desc, desc->list + desc_slot_offset, desc_size);
   si_set_shader_image_desc(sctx, view, true, desc->list + desc_slot_offset,
                            desc->list + desc_slot_offset + 8);

   if (memcmp(image_desc, desc->list + desc_slot_offset, desc_size)) {
      img_handle->desc_dirty = true;
      sctx->bindless_descriptors_dirty = true;
   }
}

static void si_update_all_resident_texture_descriptors(struct si_context *sctx)
{
   util_dynarray_foreach (&sctx->resident_tex_handles, struct si_texture_handle *, tex_handle) {
      si_update_bindless_texture_descriptor(sctx, *tex_handle);
   }

   util_dynarray_foreach (&sctx->resident_img_handles, struct si_image_handle *, img_handle) {
      si_update_bindless_image_descriptor(sctx, *img_handle);
   }

   si_upload_bindless_descriptors(sctx);
}

/* Update mutable image descriptor fields of all bound textures. */
void si_update_all_texture_descriptors(struct si_context *sctx)
{
   unsigned shader;

   for (shader = 0; shader < SI_NUM_SHADERS; shader++) {
      struct si_samplers *samplers = &sctx->samplers[shader];
      struct si_images *images = &sctx->images[shader];
      unsigned mask;

      /* Images. */
      mask = images->enabled_mask;
      while (mask) {
         unsigned i = u_bit_scan(&mask);
         struct pipe_image_view *view = &images->views[i];

         if (!view->resource || view->resource->target == PIPE_BUFFER)
            continue;

         si_set_shader_image(sctx, shader, i, view, true);
      }

      /* Sampler views. */
      mask = samplers->enabled_mask;
      while (mask) {
         unsigned i = u_bit_scan(&mask);
         struct pipe_sampler_view *view = samplers->views[i];

         if (!view || !view->texture || view->texture->target == PIPE_BUFFER)
            continue;

         si_set_sampler_view(sctx, shader, i, samplers->views[i], true);
      }

      si_update_shader_needs_decompress_mask(sctx, shader);
   }

   si_update_all_resident_texture_descriptors(sctx);
   si_update_ps_colorbuf0_slot(sctx);
}

/* SHADER USER DATA */

static void si_mark_shader_pointers_dirty(struct si_context *sctx, unsigned shader)
{
   sctx->shader_pointers_dirty |=
      u_bit_consecutive(SI_DESCS_FIRST_SHADER + shader * SI_NUM_SHADER_DESCS, SI_NUM_SHADER_DESCS);

   if (shader == PIPE_SHADER_VERTEX) {
      sctx->vertex_buffer_pointer_dirty = sctx->vb_descriptors_buffer != NULL;
      sctx->vertex_buffer_user_sgprs_dirty =
         sctx->num_vertex_elements > 0 && sctx->screen->num_vbos_in_user_sgprs;
   }

   si_mark_atom_dirty(sctx, &sctx->atoms.s.shader_pointers);
}

void si_shader_pointers_mark_dirty(struct si_context *sctx)
{
   sctx->shader_pointers_dirty = u_bit_consecutive(0, SI_NUM_DESCS);
   sctx->vertex_buffer_pointer_dirty = sctx->vb_descriptors_buffer != NULL;
   sctx->vertex_buffer_user_sgprs_dirty =
      sctx->num_vertex_elements > 0 && sctx->screen->num_vbos_in_user_sgprs;
   si_mark_atom_dirty(sctx, &sctx->atoms.s.shader_pointers);
   sctx->graphics_bindless_pointer_dirty = sctx->bindless_descriptors.buffer != NULL;
   sctx->compute_bindless_pointer_dirty = sctx->bindless_descriptors.buffer != NULL;
   sctx->compute_shaderbuf_sgprs_dirty = true;
   sctx->compute_image_sgprs_dirty = true;
}

/* Set a base register address for user data constants in the given shader.
 * This assigns a mapping from PIPE_SHADER_* to SPI_SHADER_USER_DATA_*.
 */
static void si_set_user_data_base(struct si_context *sctx, unsigned shader, uint32_t new_base)
{
   uint32_t *base = &sctx->shader_pointers.sh_base[shader];

   if (*base != new_base) {
      *base = new_base;

      if (new_base)
         si_mark_shader_pointers_dirty(sctx, shader);

      /* Any change in enabled shader stages requires re-emitting
       * the VS state SGPR, because it contains the clamp_vertex_color
       * state, which can be done in VS, TES, and GS.
       */
      sctx->last_vs_state = ~0;
   }
}

/* This must be called when these are changed between enabled and disabled
 * - geometry shader
 * - tessellation evaluation shader
 * - NGG
 */
void si_shader_change_notify(struct si_context *sctx)
{
   /* VS can be bound as VS, ES, or LS. */
   if (sctx->tes_shader.cso) {
      if (sctx->chip_class >= GFX10) {
         si_set_user_data_base(sctx, PIPE_SHADER_VERTEX, R_00B430_SPI_SHADER_USER_DATA_HS_0);
      } else if (sctx->chip_class == GFX9) {
         si_set_user_data_base(sctx, PIPE_SHADER_VERTEX, R_00B430_SPI_SHADER_USER_DATA_LS_0);
      } else {
         si_set_user_data_base(sctx, PIPE_SHADER_VERTEX, R_00B530_SPI_SHADER_USER_DATA_LS_0);
      }
   } else if (sctx->chip_class >= GFX10) {
      if (sctx->ngg || sctx->gs_shader.cso) {
         si_set_user_data_base(sctx, PIPE_SHADER_VERTEX, R_00B230_SPI_SHADER_USER_DATA_GS_0);
      } else {
         si_set_user_data_base(sctx, PIPE_SHADER_VERTEX, R_00B130_SPI_SHADER_USER_DATA_VS_0);
      }
   } else if (sctx->gs_shader.cso) {
      si_set_user_data_base(sctx, PIPE_SHADER_VERTEX, R_00B330_SPI_SHADER_USER_DATA_ES_0);
   } else {
      si_set_user_data_base(sctx, PIPE_SHADER_VERTEX, R_00B130_SPI_SHADER_USER_DATA_VS_0);
   }

   /* TES can be bound as ES, VS, or not bound. */
   if (sctx->tes_shader.cso) {
      if (sctx->chip_class >= GFX10) {
         if (sctx->ngg || sctx->gs_shader.cso) {
            si_set_user_data_base(sctx, PIPE_SHADER_TESS_EVAL, R_00B230_SPI_SHADER_USER_DATA_GS_0);
         } else {
            si_set_user_data_base(sctx, PIPE_SHADER_TESS_EVAL, R_00B130_SPI_SHADER_USER_DATA_VS_0);
         }
      } else if (sctx->gs_shader.cso) {
         si_set_user_data_base(sctx, PIPE_SHADER_TESS_EVAL, R_00B330_SPI_SHADER_USER_DATA_ES_0);
      } else {
         si_set_user_data_base(sctx, PIPE_SHADER_TESS_EVAL, R_00B130_SPI_SHADER_USER_DATA_VS_0);
      }
   } else {
      si_set_user_data_base(sctx, PIPE_SHADER_TESS_EVAL, 0);
   }
}

static void si_emit_shader_pointer_head(struct radeon_cmdbuf *cs, unsigned sh_offset,
                                        unsigned pointer_count)
{
   radeon_emit(cs, PKT3(PKT3_SET_SH_REG, pointer_count, 0));
   radeon_emit(cs, (sh_offset - SI_SH_REG_OFFSET) >> 2);
}

static void si_emit_shader_pointer_body(struct si_screen *sscreen, struct radeon_cmdbuf *cs,
                                        uint64_t va)
{
   radeon_emit(cs, va);

   assert(va == 0 || (va >> 32) == sscreen->info.address32_hi);
}

static void si_emit_shader_pointer(struct si_context *sctx, struct si_descriptors *desc,
                                   unsigned sh_base)
{
   struct radeon_cmdbuf *cs = sctx->gfx_cs;
   unsigned sh_offset = sh_base + desc->shader_userdata_offset;

   si_emit_shader_pointer_head(cs, sh_offset, 1);
   si_emit_shader_pointer_body(sctx->screen, cs, desc->gpu_address);
}

static void si_emit_consecutive_shader_pointers(struct si_context *sctx, unsigned pointer_mask,
                                                unsigned sh_base)
{
   if (!sh_base)
      return;

   struct radeon_cmdbuf *cs = sctx->gfx_cs;
   unsigned mask = sctx->shader_pointers_dirty & pointer_mask;

   while (mask) {
      int start, count;
      u_bit_scan_consecutive_range(&mask, &start, &count);

      struct si_descriptors *descs = &sctx->descriptors[start];
      unsigned sh_offset = sh_base + descs->shader_userdata_offset;

      si_emit_shader_pointer_head(cs, sh_offset, count);
      for (int i = 0; i < count; i++)
         si_emit_shader_pointer_body(sctx->screen, cs, descs[i].gpu_address);
   }
}

static void si_emit_global_shader_pointers(struct si_context *sctx, struct si_descriptors *descs)
{
   if (sctx->chip_class >= GFX10) {
      si_emit_shader_pointer(sctx, descs, R_00B030_SPI_SHADER_USER_DATA_PS_0);
      /* HW VS stage only used in non-NGG mode. */
      si_emit_shader_pointer(sctx, descs, R_00B130_SPI_SHADER_USER_DATA_VS_0);
      si_emit_shader_pointer(sctx, descs, R_00B230_SPI_SHADER_USER_DATA_GS_0);
      si_emit_shader_pointer(sctx, descs, R_00B430_SPI_SHADER_USER_DATA_HS_0);
      return;
   } else if (sctx->chip_class == GFX9) {
      /* Broadcast it to all shader stages. */
      si_emit_shader_pointer(sctx, descs, R_00B530_SPI_SHADER_USER_DATA_COMMON_0);
      return;
   }

   si_emit_shader_pointer(sctx, descs, R_00B030_SPI_SHADER_USER_DATA_PS_0);
   si_emit_shader_pointer(sctx, descs, R_00B130_SPI_SHADER_USER_DATA_VS_0);
   si_emit_shader_pointer(sctx, descs, R_00B330_SPI_SHADER_USER_DATA_ES_0);
   si_emit_shader_pointer(sctx, descs, R_00B230_SPI_SHADER_USER_DATA_GS_0);
   si_emit_shader_pointer(sctx, descs, R_00B430_SPI_SHADER_USER_DATA_HS_0);
   si_emit_shader_pointer(sctx, descs, R_00B530_SPI_SHADER_USER_DATA_LS_0);
}

void si_emit_graphics_shader_pointers(struct si_context *sctx)
{
   uint32_t *sh_base = sctx->shader_pointers.sh_base;

   if (sctx->shader_pointers_dirty & (1 << SI_DESCS_RW_BUFFERS)) {
      si_emit_global_shader_pointers(sctx, &sctx->descriptors[SI_DESCS_RW_BUFFERS]);
   }

   si_emit_consecutive_shader_pointers(sctx, SI_DESCS_SHADER_MASK(VERTEX),
                                       sh_base[PIPE_SHADER_VERTEX]);
   si_emit_consecutive_shader_pointers(sctx, SI_DESCS_SHADER_MASK(TESS_EVAL),
                                       sh_base[PIPE_SHADER_TESS_EVAL]);
   si_emit_consecutive_shader_pointers(sctx, SI_DESCS_SHADER_MASK(FRAGMENT),
                                       sh_base[PIPE_SHADER_FRAGMENT]);
   si_emit_consecutive_shader_pointers(sctx, SI_DESCS_SHADER_MASK(TESS_CTRL),
                                       sh_base[PIPE_SHADER_TESS_CTRL]);
   si_emit_consecutive_shader_pointers(sctx, SI_DESCS_SHADER_MASK(GEOMETRY),
                                       sh_base[PIPE_SHADER_GEOMETRY]);

   sctx->shader_pointers_dirty &= ~u_bit_consecutive(SI_DESCS_RW_BUFFERS, SI_DESCS_FIRST_COMPUTE);

   if (sctx->vertex_buffer_pointer_dirty && sctx->num_vertex_elements) {
      struct radeon_cmdbuf *cs = sctx->gfx_cs;

      /* Find the location of the VB descriptor pointer. */
      unsigned sh_dw_offset = SI_VS_NUM_USER_SGPR;
      if (sctx->chip_class >= GFX9) {
         if (sctx->tes_shader.cso)
            sh_dw_offset = GFX9_TCS_NUM_USER_SGPR;
         else if (sctx->gs_shader.cso)
            sh_dw_offset = GFX9_VSGS_NUM_USER_SGPR;
      }

      unsigned sh_offset = sh_base[PIPE_SHADER_VERTEX] + sh_dw_offset * 4;
      si_emit_shader_pointer_head(cs, sh_offset, 1);
      si_emit_shader_pointer_body(
         sctx->screen, cs, sctx->vb_descriptors_buffer->gpu_address + sctx->vb_descriptors_offset);
      sctx->vertex_buffer_pointer_dirty = false;
   }

   if (sctx->vertex_buffer_user_sgprs_dirty && sctx->num_vertex_elements &&
       sctx->screen->num_vbos_in_user_sgprs) {
      struct radeon_cmdbuf *cs = sctx->gfx_cs;
      unsigned num_desc = MIN2(sctx->num_vertex_elements, sctx->screen->num_vbos_in_user_sgprs);
      unsigned sh_offset = sh_base[PIPE_SHADER_VERTEX] + SI_SGPR_VS_VB_DESCRIPTOR_FIRST * 4;

      si_emit_shader_pointer_head(cs, sh_offset, num_desc * 4);
      radeon_emit_array(cs, sctx->vb_descriptor_user_sgprs, num_desc * 4);
      sctx->vertex_buffer_user_sgprs_dirty = false;
   }

   if (sctx->graphics_bindless_pointer_dirty) {
      si_emit_global_shader_pointers(sctx, &sctx->bindless_descriptors);
      sctx->graphics_bindless_pointer_dirty = false;
   }
}

void si_emit_compute_shader_pointers(struct si_context *sctx)
{
   struct radeon_cmdbuf *cs = sctx->gfx_cs;
   struct si_shader_selector *shader = &sctx->cs_shader_state.program->sel;
   unsigned base = R_00B900_COMPUTE_USER_DATA_0;

   si_emit_consecutive_shader_pointers(sctx, SI_DESCS_SHADER_MASK(COMPUTE),
                                       R_00B900_COMPUTE_USER_DATA_0);
   sctx->shader_pointers_dirty &= ~SI_DESCS_SHADER_MASK(COMPUTE);

   if (sctx->compute_bindless_pointer_dirty) {
      si_emit_shader_pointer(sctx, &sctx->bindless_descriptors, base);
      sctx->compute_bindless_pointer_dirty = false;
   }

   /* Set shader buffer descriptors in user SGPRs. */
   unsigned num_shaderbufs = shader->cs_num_shaderbufs_in_user_sgprs;
   if (num_shaderbufs && sctx->compute_shaderbuf_sgprs_dirty) {
      struct si_descriptors *desc = si_const_and_shader_buffer_descriptors(sctx, PIPE_SHADER_COMPUTE);

      si_emit_shader_pointer_head(cs, R_00B900_COMPUTE_USER_DATA_0 +
                                  shader->cs_shaderbufs_sgpr_index * 4,
                                  num_shaderbufs * 4);

      for (unsigned i = 0; i < num_shaderbufs; i++)
         radeon_emit_array(cs, &desc->list[si_get_shaderbuf_slot(i) * 4], 4);

      sctx->compute_shaderbuf_sgprs_dirty = false;
   }

   /* Set image descriptors in user SGPRs. */
   unsigned num_images = shader->cs_num_images_in_user_sgprs;
   if (num_images && sctx->compute_image_sgprs_dirty) {
      struct si_descriptors *desc = si_sampler_and_image_descriptors(sctx, PIPE_SHADER_COMPUTE);

      si_emit_shader_pointer_head(cs, R_00B900_COMPUTE_USER_DATA_0 +
                                  shader->cs_images_sgpr_index * 4,
                                  shader->cs_images_num_sgprs);

      for (unsigned i = 0; i < num_images; i++) {
         unsigned desc_offset = si_get_image_slot(i) * 8;
         unsigned num_sgprs = 8;

         /* Image buffers are in desc[4..7]. */
         if (shader->info.image_buffers & (1 << i)) {
            desc_offset += 4;
            num_sgprs = 4;
         }

         radeon_emit_array(cs, &desc->list[desc_offset], num_sgprs);
      }

      sctx->compute_image_sgprs_dirty = false;
   }
}

/* BINDLESS */

static void si_init_bindless_descriptors(struct si_context *sctx, struct si_descriptors *desc,
                                         short shader_userdata_rel_index, unsigned num_elements)
{
   ASSERTED unsigned desc_slot;

   si_init_descriptors(desc, shader_userdata_rel_index, 16, num_elements);
   sctx->bindless_descriptors.num_active_slots = num_elements;

   /* The first bindless descriptor is stored at slot 1, because 0 is not
    * considered to be a valid handle.
    */
   sctx->num_bindless_descriptors = 1;

   /* Track which bindless slots are used (or not). */
   util_idalloc_init(&sctx->bindless_used_slots);
   util_idalloc_resize(&sctx->bindless_used_slots, num_elements);

   /* Reserve slot 0 because it's an invalid handle for bindless. */
   desc_slot = util_idalloc_alloc(&sctx->bindless_used_slots);
   assert(desc_slot == 0);
}

static void si_release_bindless_descriptors(struct si_context *sctx)
{
   si_release_descriptors(&sctx->bindless_descriptors);
   util_idalloc_fini(&sctx->bindless_used_slots);
}

static unsigned si_get_first_free_bindless_slot(struct si_context *sctx)
{
   struct si_descriptors *desc = &sctx->bindless_descriptors;
   unsigned desc_slot;

   desc_slot = util_idalloc_alloc(&sctx->bindless_used_slots);
   if (desc_slot >= desc->num_elements) {
      /* The array of bindless descriptors is full, resize it. */
      unsigned slot_size = desc->element_dw_size * 4;
      unsigned new_num_elements = desc->num_elements * 2;

      desc->list =
         REALLOC(desc->list, desc->num_elements * slot_size, new_num_elements * slot_size);
      desc->num_elements = new_num_elements;
      desc->num_active_slots = new_num_elements;
   }

   assert(desc_slot);
   return desc_slot;
}

static unsigned si_create_bindless_descriptor(struct si_context *sctx, uint32_t *desc_list,
                                              unsigned size)
{
   struct si_descriptors *desc = &sctx->bindless_descriptors;
   unsigned desc_slot, desc_slot_offset;

   /* Find a free slot. */
   desc_slot = si_get_first_free_bindless_slot(sctx);

   /* For simplicity, sampler and image bindless descriptors use fixed
    * 16-dword slots for now. Image descriptors only need 8-dword but this
    * doesn't really matter because no real apps use image handles.
    */
   desc_slot_offset = desc_slot * 16;

   /* Copy the descriptor into the array. */
   memcpy(desc->list + desc_slot_offset, desc_list, size);

   /* Re-upload the whole array of bindless descriptors into a new buffer.
    */
   if (!si_upload_descriptors(sctx, desc))
      return 0;

   /* Make sure to re-emit the shader pointers for all stages. */
   sctx->graphics_bindless_pointer_dirty = true;
   sctx->compute_bindless_pointer_dirty = true;

   return desc_slot;
}

static void si_update_bindless_buffer_descriptor(struct si_context *sctx, unsigned desc_slot,
                                                 struct pipe_resource *resource, uint64_t offset,
                                                 bool *desc_dirty)
{
   struct si_descriptors *desc = &sctx->bindless_descriptors;
   struct si_resource *buf = si_resource(resource);
   unsigned desc_slot_offset = desc_slot * 16;
   uint32_t *desc_list = desc->list + desc_slot_offset + 4;
   uint64_t old_desc_va;

   assert(resource->target == PIPE_BUFFER);

   /* Retrieve the old buffer addr from the descriptor. */
   old_desc_va = si_desc_extract_buffer_address(desc_list);

   if (old_desc_va != buf->gpu_address + offset) {
      /* The buffer has been invalidated when the handle wasn't
       * resident, update the descriptor and the dirty flag.
       */
      si_set_buf_desc_address(buf, offset, &desc_list[0]);

      *desc_dirty = true;
   }
}

static uint64_t si_create_texture_handle(struct pipe_context *ctx, struct pipe_sampler_view *view,
                                         const struct pipe_sampler_state *state)
{
   struct si_sampler_view *sview = (struct si_sampler_view *)view;
   struct si_context *sctx = (struct si_context *)ctx;
   struct si_texture_handle *tex_handle;
   struct si_sampler_state *sstate;
   uint32_t desc_list[16];
   uint64_t handle;

   tex_handle = CALLOC_STRUCT(si_texture_handle);
   if (!tex_handle)
      return 0;

   memset(desc_list, 0, sizeof(desc_list));
   si_init_descriptor_list(&desc_list[0], 16, 1, null_texture_descriptor);

   sstate = ctx->create_sampler_state(ctx, state);
   if (!sstate) {
      FREE(tex_handle);
      return 0;
   }

   si_set_sampler_view_desc(sctx, sview, sstate, &desc_list[0]);
   memcpy(&tex_handle->sstate, sstate, sizeof(*sstate));
   ctx->delete_sampler_state(ctx, sstate);

   tex_handle->desc_slot = si_create_bindless_descriptor(sctx, desc_list, sizeof(desc_list));
   if (!tex_handle->desc_slot) {
      FREE(tex_handle);
      return 0;
   }

   handle = tex_handle->desc_slot;

   if (!_mesa_hash_table_insert(sctx->tex_handles, (void *)(uintptr_t)handle, tex_handle)) {
      FREE(tex_handle);
      return 0;
   }

   pipe_sampler_view_reference(&tex_handle->view, view);

   si_resource(sview->base.texture)->texture_handle_allocated = true;

   return handle;
}

static void si_delete_texture_handle(struct pipe_context *ctx, uint64_t handle)
{
   struct si_context *sctx = (struct si_context *)ctx;
   struct si_texture_handle *tex_handle;
   struct hash_entry *entry;

   entry = _mesa_hash_table_search(sctx->tex_handles, (void *)(uintptr_t)handle);
   if (!entry)
      return;

   tex_handle = (struct si_texture_handle *)entry->data;

   /* Allow this descriptor slot to be re-used. */
   util_idalloc_free(&sctx->bindless_used_slots, tex_handle->desc_slot);

   pipe_sampler_view_reference(&tex_handle->view, NULL);
   _mesa_hash_table_remove(sctx->tex_handles, entry);
   FREE(tex_handle);
}

static void si_make_texture_handle_resident(struct pipe_context *ctx, uint64_t handle,
                                            bool resident)
{
   struct si_context *sctx = (struct si_context *)ctx;
   struct si_texture_handle *tex_handle;
   struct si_sampler_view *sview;
   struct hash_entry *entry;

   entry = _mesa_hash_table_search(sctx->tex_handles, (void *)(uintptr_t)handle);
   if (!entry)
      return;

   tex_handle = (struct si_texture_handle *)entry->data;
   sview = (struct si_sampler_view *)tex_handle->view;

   if (resident) {
      if (sview->base.texture->target != PIPE_BUFFER) {
         struct si_texture *tex = (struct si_texture *)sview->base.texture;

         if (depth_needs_decompression(tex)) {
            util_dynarray_append(&sctx->resident_tex_needs_depth_decompress,
                                 struct si_texture_handle *, tex_handle);
         }

         if (color_needs_decompression(tex)) {
            util_dynarray_append(&sctx->resident_tex_needs_color_decompress,
                                 struct si_texture_handle *, tex_handle);
         }

         if (vi_dcc_enabled(tex, sview->base.u.tex.first_level) &&
             p_atomic_read(&tex->framebuffers_bound))
            sctx->need_check_render_feedback = true;

         si_update_bindless_texture_descriptor(sctx, tex_handle);
      } else {
         si_update_bindless_buffer_descriptor(sctx, tex_handle->desc_slot, sview->base.texture,
                                              sview->base.u.buf.offset, &tex_handle->desc_dirty);
      }

      /* Re-upload the descriptor if it has been updated while it
       * wasn't resident.
       */
      if (tex_handle->desc_dirty)
         sctx->bindless_descriptors_dirty = true;

      /* Add the texture handle to the per-context list. */
      util_dynarray_append(&sctx->resident_tex_handles, struct si_texture_handle *, tex_handle);

      /* Add the buffers to the current CS in case si_begin_new_cs()
       * is not going to be called.
       */
      si_sampler_view_add_buffer(sctx, sview->base.texture, RADEON_USAGE_READ,
                                 sview->is_stencil_sampler, false);
   } else {
      /* Remove the texture handle from the per-context list. */
      util_dynarray_delete_unordered(&sctx->resident_tex_handles, struct si_texture_handle *,
                                     tex_handle);

      if (sview->base.texture->target != PIPE_BUFFER) {
         util_dynarray_delete_unordered(&sctx->resident_tex_needs_depth_decompress,
                                        struct si_texture_handle *, tex_handle);

         util_dynarray_delete_unordered(&sctx->resident_tex_needs_color_decompress,
                                        struct si_texture_handle *, tex_handle);
      }
   }
}

static uint64_t si_create_image_handle(struct pipe_context *ctx, const struct pipe_image_view *view)
{
   struct si_context *sctx = (struct si_context *)ctx;
   struct si_image_handle *img_handle;
   uint32_t desc_list[16];
   uint64_t handle;

   if (!view || !view->resource)
      return 0;

   img_handle = CALLOC_STRUCT(si_image_handle);
   if (!img_handle)
      return 0;

   memset(desc_list, 0, sizeof(desc_list));
   si_init_descriptor_list(&desc_list[0], 8, 2, null_image_descriptor);

   si_set_shader_image_desc(sctx, view, false, &desc_list[0], &desc_list[8]);

   img_handle->desc_slot = si_create_bindless_descriptor(sctx, desc_list, sizeof(desc_list));
   if (!img_handle->desc_slot) {
      FREE(img_handle);
      return 0;
   }

   handle = img_handle->desc_slot;

   if (!_mesa_hash_table_insert(sctx->img_handles, (void *)(uintptr_t)handle, img_handle)) {
      FREE(img_handle);
      return 0;
   }

   util_copy_image_view(&img_handle->view, view);

   si_resource(view->resource)->image_handle_allocated = true;

   return handle;
}

static void si_delete_image_handle(struct pipe_context *ctx, uint64_t handle)
{
   struct si_context *sctx = (struct si_context *)ctx;
   struct si_image_handle *img_handle;
   struct hash_entry *entry;

   entry = _mesa_hash_table_search(sctx->img_handles, (void *)(uintptr_t)handle);
   if (!entry)
      return;

   img_handle = (struct si_image_handle *)entry->data;

   util_copy_image_view(&img_handle->view, NULL);
   _mesa_hash_table_remove(sctx->img_handles, entry);
   FREE(img_handle);
}

static void si_make_image_handle_resident(struct pipe_context *ctx, uint64_t handle,
                                          unsigned access, bool resident)
{
   struct si_context *sctx = (struct si_context *)ctx;
   struct si_image_handle *img_handle;
   struct pipe_image_view *view;
   struct si_resource *res;
   struct hash_entry *entry;

   entry = _mesa_hash_table_search(sctx->img_handles, (void *)(uintptr_t)handle);
   if (!entry)
      return;

   img_handle = (struct si_image_handle *)entry->data;
   view = &img_handle->view;
   res = si_resource(view->resource);

   if (resident) {
      if (res->b.b.target != PIPE_BUFFER) {
         struct si_texture *tex = (struct si_texture *)res;
         unsigned level = view->u.tex.level;

         if (color_needs_decompression(tex)) {
            util_dynarray_append(&sctx->resident_img_needs_color_decompress,
                                 struct si_image_handle *, img_handle);
         }

         if (vi_dcc_enabled(tex, level) && p_atomic_read(&tex->framebuffers_bound))
            sctx->need_check_render_feedback = true;

         si_update_bindless_image_descriptor(sctx, img_handle);
      } else {
         si_update_bindless_buffer_descriptor(sctx, img_handle->desc_slot, view->resource,
                                              view->u.buf.offset, &img_handle->desc_dirty);
      }

      /* Re-upload the descriptor if it has been updated while it
       * wasn't resident.
       */
      if (img_handle->desc_dirty)
         sctx->bindless_descriptors_dirty = true;

      /* Add the image handle to the per-context list. */
      util_dynarray_append(&sctx->resident_img_handles, struct si_image_handle *, img_handle);

      /* Add the buffers to the current CS in case si_begin_new_cs()
       * is not going to be called.
       */
      si_sampler_view_add_buffer(
         sctx, view->resource,
         (access & PIPE_IMAGE_ACCESS_WRITE) ? RADEON_USAGE_READWRITE : RADEON_USAGE_READ, false,
         false);
   } else {
      /* Remove the image handle from the per-context list. */
      util_dynarray_delete_unordered(&sctx->resident_img_handles, struct si_image_handle *,
                                     img_handle);

      if (res->b.b.target != PIPE_BUFFER) {
         util_dynarray_delete_unordered(&sctx->resident_img_needs_color_decompress,
                                        struct si_image_handle *, img_handle);
      }
   }
}

static void si_resident_buffers_add_all_to_bo_list(struct si_context *sctx)
{
   unsigned num_resident_tex_handles, num_resident_img_handles;

   num_resident_tex_handles = sctx->resident_tex_handles.size / sizeof(struct si_texture_handle *);
   num_resident_img_handles = sctx->resident_img_handles.size / sizeof(struct si_image_handle *);

   /* Add all resident texture handles. */
   util_dynarray_foreach (&sctx->resident_tex_handles, struct si_texture_handle *, tex_handle) {
      struct si_sampler_view *sview = (struct si_sampler_view *)(*tex_handle)->view;

      si_sampler_view_add_buffer(sctx, sview->base.texture, RADEON_USAGE_READ,
                                 sview->is_stencil_sampler, false);
   }

   /* Add all resident image handles. */
   util_dynarray_foreach (&sctx->resident_img_handles, struct si_image_handle *, img_handle) {
      struct pipe_image_view *view = &(*img_handle)->view;

      si_sampler_view_add_buffer(sctx, view->resource, RADEON_USAGE_READWRITE, false, false);
   }

   sctx->num_resident_handles += num_resident_tex_handles + num_resident_img_handles;
   assert(sctx->bo_list_add_all_resident_resources);
   sctx->bo_list_add_all_resident_resources = false;
}

/* INIT/DEINIT/UPLOAD */

void si_init_all_descriptors(struct si_context *sctx)
{
   int i;
   unsigned first_shader = sctx->has_graphics ? 0 : PIPE_SHADER_COMPUTE;

   for (i = first_shader; i < SI_NUM_SHADERS; i++) {
      bool is_2nd =
         sctx->chip_class >= GFX9 && (i == PIPE_SHADER_TESS_CTRL || i == PIPE_SHADER_GEOMETRY);
      unsigned num_sampler_slots = SI_NUM_IMAGE_SLOTS / 2 + SI_NUM_SAMPLERS;
      unsigned num_buffer_slots = SI_NUM_SHADER_BUFFERS + SI_NUM_CONST_BUFFERS;
      int rel_dw_offset;
      struct si_descriptors *desc;

      if (is_2nd) {
         if (i == PIPE_SHADER_TESS_CTRL) {
            rel_dw_offset =
               (R_00B408_SPI_SHADER_USER_DATA_ADDR_LO_HS - R_00B430_SPI_SHADER_USER_DATA_LS_0) / 4;
         } else if (sctx->chip_class >= GFX10) { /* PIPE_SHADER_GEOMETRY */
            rel_dw_offset =
               (R_00B208_SPI_SHADER_USER_DATA_ADDR_LO_GS - R_00B230_SPI_SHADER_USER_DATA_GS_0) / 4;
         } else {
            rel_dw_offset =
               (R_00B208_SPI_SHADER_USER_DATA_ADDR_LO_GS - R_00B330_SPI_SHADER_USER_DATA_ES_0) / 4;
         }
      } else {
         rel_dw_offset = SI_SGPR_CONST_AND_SHADER_BUFFERS;
      }
      desc = si_const_and_shader_buffer_descriptors(sctx, i);
      si_init_buffer_resources(&sctx->const_and_shader_buffers[i], desc, num_buffer_slots,
                               rel_dw_offset, RADEON_PRIO_SHADER_RW_BUFFER,
                               RADEON_PRIO_CONST_BUFFER);
      desc->slot_index_to_bind_directly = si_get_constbuf_slot(0);

      if (is_2nd) {
         if (i == PIPE_SHADER_TESS_CTRL) {
            rel_dw_offset =
               (R_00B40C_SPI_SHADER_USER_DATA_ADDR_HI_HS - R_00B430_SPI_SHADER_USER_DATA_LS_0) / 4;
         } else if (sctx->chip_class >= GFX10) { /* PIPE_SHADER_GEOMETRY */
            rel_dw_offset =
               (R_00B20C_SPI_SHADER_USER_DATA_ADDR_HI_GS - R_00B230_SPI_SHADER_USER_DATA_GS_0) / 4;
         } else {
            rel_dw_offset =
               (R_00B20C_SPI_SHADER_USER_DATA_ADDR_HI_GS - R_00B330_SPI_SHADER_USER_DATA_ES_0) / 4;
         }
      } else {
         rel_dw_offset = SI_SGPR_SAMPLERS_AND_IMAGES;
      }

      desc = si_sampler_and_image_descriptors(sctx, i);
      si_init_descriptors(desc, rel_dw_offset, 16, num_sampler_slots);

      int j;
      for (j = 0; j < SI_NUM_IMAGE_SLOTS; j++)
         memcpy(desc->list + j * 8, null_image_descriptor, 8 * 4);
      for (; j < SI_NUM_IMAGE_SLOTS + SI_NUM_SAMPLERS * 2; j++)
         memcpy(desc->list + j * 8, null_texture_descriptor, 8 * 4);
   }

   si_init_buffer_resources(&sctx->rw_buffers, &sctx->descriptors[SI_DESCS_RW_BUFFERS],
                            SI_NUM_RW_BUFFERS, SI_SGPR_RW_BUFFERS,
                            /* The second priority is used by
                             * const buffers in RW buffer slots. */
                            RADEON_PRIO_SHADER_RINGS, RADEON_PRIO_CONST_BUFFER);
   sctx->descriptors[SI_DESCS_RW_BUFFERS].num_active_slots = SI_NUM_RW_BUFFERS;

   /* Initialize an array of 1024 bindless descriptors, when the limit is
    * reached, just make it larger and re-upload the whole array.
    */
   si_init_bindless_descriptors(sctx, &sctx->bindless_descriptors,
                                SI_SGPR_BINDLESS_SAMPLERS_AND_IMAGES, 1024);

   sctx->descriptors_dirty = u_bit_consecutive(0, SI_NUM_DESCS);

   /* Set pipe_context functions. */
   sctx->b.bind_sampler_states = si_bind_sampler_states;
   sctx->b.set_shader_images = si_set_shader_images;
   sctx->b.set_constant_buffer = si_pipe_set_constant_buffer;
   sctx->b.set_shader_buffers = si_set_shader_buffers;
   sctx->b.set_sampler_views = si_set_sampler_views;
   sctx->b.create_texture_handle = si_create_texture_handle;
   sctx->b.delete_texture_handle = si_delete_texture_handle;
   sctx->b.make_texture_handle_resident = si_make_texture_handle_resident;
   sctx->b.create_image_handle = si_create_image_handle;
   sctx->b.delete_image_handle = si_delete_image_handle;
   sctx->b.make_image_handle_resident = si_make_image_handle_resident;

   if (!sctx->has_graphics)
      return;

   sctx->b.set_polygon_stipple = si_set_polygon_stipple;

   /* Shader user data. */
   sctx->atoms.s.shader_pointers.emit = si_emit_graphics_shader_pointers;

   /* Set default and immutable mappings. */
   if (sctx->ngg) {
      assert(sctx->chip_class >= GFX10);
      si_set_user_data_base(sctx, PIPE_SHADER_VERTEX, R_00B230_SPI_SHADER_USER_DATA_GS_0);
   } else {
      si_set_user_data_base(sctx, PIPE_SHADER_VERTEX, R_00B130_SPI_SHADER_USER_DATA_VS_0);
   }

   if (sctx->chip_class == GFX9) {
      si_set_user_data_base(sctx, PIPE_SHADER_TESS_CTRL, R_00B430_SPI_SHADER_USER_DATA_LS_0);
      si_set_user_data_base(sctx, PIPE_SHADER_GEOMETRY, R_00B330_SPI_SHADER_USER_DATA_ES_0);
   } else {
      si_set_user_data_base(sctx, PIPE_SHADER_TESS_CTRL, R_00B430_SPI_SHADER_USER_DATA_HS_0);
      si_set_user_data_base(sctx, PIPE_SHADER_GEOMETRY, R_00B230_SPI_SHADER_USER_DATA_GS_0);
   }
   si_set_user_data_base(sctx, PIPE_SHADER_FRAGMENT, R_00B030_SPI_SHADER_USER_DATA_PS_0);
}

static bool si_upload_shader_descriptors(struct si_context *sctx, unsigned mask)
{
   unsigned dirty = sctx->descriptors_dirty & mask;

   /* Assume nothing will go wrong: */
   sctx->shader_pointers_dirty |= dirty;

   while (dirty) {
      unsigned i = u_bit_scan(&dirty);

      if (!si_upload_descriptors(sctx, &sctx->descriptors[i]))
         return false;
   }

   sctx->descriptors_dirty &= ~mask;

   si_upload_bindless_descriptors(sctx);

   return true;
}

bool si_upload_graphics_shader_descriptors(struct si_context *sctx)
{
   const unsigned mask = u_bit_consecutive(0, SI_DESCS_FIRST_COMPUTE);
   return si_upload_shader_descriptors(sctx, mask);
}

bool si_upload_compute_shader_descriptors(struct si_context *sctx)
{
   /* Does not update rw_buffers as that is not needed for compute shaders
    * and the input buffer is using the same SGPR's anyway.
    */
   const unsigned mask =
      u_bit_consecutive(SI_DESCS_FIRST_COMPUTE, SI_NUM_DESCS - SI_DESCS_FIRST_COMPUTE);
   return si_upload_shader_descriptors(sctx, mask);
}

void si_release_all_descriptors(struct si_context *sctx)
{
   int i;

   for (i = 0; i < SI_NUM_SHADERS; i++) {
      si_release_buffer_resources(&sctx->const_and_shader_buffers[i],
                                  si_const_and_shader_buffer_descriptors(sctx, i));
      si_release_sampler_views(&sctx->samplers[i]);
      si_release_image_views(&sctx->images[i]);
   }
   si_release_buffer_resources(&sctx->rw_buffers, &sctx->descriptors[SI_DESCS_RW_BUFFERS]);
   for (i = 0; i < SI_NUM_VERTEX_BUFFERS; i++)
      pipe_vertex_buffer_unreference(&sctx->vertex_buffer[i]);

   for (i = 0; i < SI_NUM_DESCS; ++i)
      si_release_descriptors(&sctx->descriptors[i]);

   si_resource_reference(&sctx->vb_descriptors_buffer, NULL);
   sctx->vb_descriptors_gpu_list = NULL; /* points into a mapped buffer */

   si_release_bindless_descriptors(sctx);
}

bool si_gfx_resources_check_encrypted(struct si_context *sctx)
{
   bool use_encrypted_bo = false;
   struct si_shader_ctx_state *current_shader[SI_NUM_SHADERS] = {
      [PIPE_SHADER_VERTEX] = &sctx->vs_shader,
      [PIPE_SHADER_TESS_CTRL] = &sctx->tcs_shader,
      [PIPE_SHADER_TESS_EVAL] = &sctx->tes_shader,
      [PIPE_SHADER_GEOMETRY] = &sctx->gs_shader,
      [PIPE_SHADER_FRAGMENT] = &sctx->ps_shader,
   };

   for (unsigned i = 0; i < SI_NUM_GRAPHICS_SHADERS && !use_encrypted_bo; i++) {
      if (!current_shader[i]->cso)
         continue;

      use_encrypted_bo |=
         si_buffer_resources_check_encrypted(sctx, &sctx->const_and_shader_buffers[i]);
      use_encrypted_bo |=
         si_sampler_views_check_encrypted(sctx, &sctx->samplers[i],
                                          current_shader[i]->cso->info.samplers_declared);
      use_encrypted_bo |= si_image_views_check_encrypted(sctx, &sctx->images[i],
                                          current_shader[i]->cso->info.images_declared);
   }
   use_encrypted_bo |= si_buffer_resources_check_encrypted(sctx, &sctx->rw_buffers);

   struct si_state_blend *blend = sctx->queued.named.blend;
   for (int i = 0; i < sctx->framebuffer.state.nr_cbufs && !use_encrypted_bo; i++) {
      struct pipe_surface *surf = sctx->framebuffer.state.cbufs[i];
      if (surf && surf->texture) {
         struct si_texture *tex = (struct si_texture *)surf->texture;
         if (!(tex->buffer.flags & RADEON_FLAG_ENCRYPTED))
            continue;
         /* Are we reading from this framebuffer (blend) */
         if ((blend->blend_enable_4bit >> (4 * i)) & 0xf) {
            /* TODO: blend op */
            use_encrypted_bo = true;
         }
      }
   }

   /* TODO: we should assert that either use_encrypted_bo is false,
    * or all writable buffers are encrypted.
    */
   return use_encrypted_bo;
}

void si_gfx_resources_add_all_to_bo_list(struct si_context *sctx)
{
   for (unsigned i = 0; i < SI_NUM_GRAPHICS_SHADERS; i++) {
      si_buffer_resources_begin_new_cs(sctx, &sctx->const_and_shader_buffers[i]);
      si_sampler_views_begin_new_cs(sctx, &sctx->samplers[i]);
      si_image_views_begin_new_cs(sctx, &sctx->images[i]);
   }
   si_buffer_resources_begin_new_cs(sctx, &sctx->rw_buffers);
   si_vertex_buffers_begin_new_cs(sctx);

   if (sctx->bo_list_add_all_resident_resources)
      si_resident_buffers_add_all_to_bo_list(sctx);

   assert(sctx->bo_list_add_all_gfx_resources);
   sctx->bo_list_add_all_gfx_resources = false;
}

bool si_compute_resources_check_encrypted(struct si_context *sctx)
{
   unsigned sh = PIPE_SHADER_COMPUTE;

   struct si_shader_info* info = &sctx->cs_shader_state.program->sel.info;

   /* TODO: we should assert that either use_encrypted_bo is false,
    * or all writable buffers are encrypted.
    */
   return si_buffer_resources_check_encrypted(sctx, &sctx->const_and_shader_buffers[sh]) ||
          si_sampler_views_check_encrypted(sctx, &sctx->samplers[sh], info->samplers_declared) ||
          si_image_views_check_encrypted(sctx, &sctx->images[sh], info->images_declared) ||
          si_buffer_resources_check_encrypted(sctx, &sctx->rw_buffers);
}

void si_compute_resources_add_all_to_bo_list(struct si_context *sctx)
{
   unsigned sh = PIPE_SHADER_COMPUTE;

   si_buffer_resources_begin_new_cs(sctx, &sctx->const_and_shader_buffers[sh]);
   si_sampler_views_begin_new_cs(sctx, &sctx->samplers[sh]);
   si_image_views_begin_new_cs(sctx, &sctx->images[sh]);
   si_buffer_resources_begin_new_cs(sctx, &sctx->rw_buffers);

   if (sctx->bo_list_add_all_resident_resources)
      si_resident_buffers_add_all_to_bo_list(sctx);

   assert(sctx->bo_list_add_all_compute_resources);
   sctx->bo_list_add_all_compute_resources = false;
}

void si_add_all_descriptors_to_bo_list(struct si_context *sctx)
{
   for (unsigned i = 0; i < SI_NUM_DESCS; ++i)
      si_add_descriptors_to_bo_list(sctx, &sctx->descriptors[i]);
   si_add_descriptors_to_bo_list(sctx, &sctx->bindless_descriptors);

   sctx->bo_list_add_all_resident_resources = true;
   sctx->bo_list_add_all_gfx_resources = true;
   sctx->bo_list_add_all_compute_resources = true;
}

void si_set_active_descriptors(struct si_context *sctx, unsigned desc_idx, uint64_t new_active_mask)
{
   struct si_descriptors *desc = &sctx->descriptors[desc_idx];

   /* Ignore no-op updates and updates that disable all slots. */
   if (!new_active_mask ||
       new_active_mask == u_bit_consecutive64(desc->first_active_slot, desc->num_active_slots))
      return;

   int first, count;
   u_bit_scan_consecutive_range64(&new_active_mask, &first, &count);
   assert(new_active_mask == 0);

   /* Upload/dump descriptors if slots are being enabled. */
   if (first < desc->first_active_slot ||
       first + count > desc->first_active_slot + desc->num_active_slots)
      sctx->descriptors_dirty |= 1u << desc_idx;

   desc->first_active_slot = first;
   desc->num_active_slots = count;
}

void si_set_active_descriptors_for_shader(struct si_context *sctx, struct si_shader_selector *sel)
{
   if (!sel)
      return;

   si_set_active_descriptors(sctx, si_const_and_shader_buffer_descriptors_idx(sel->type),
                             sel->active_const_and_shader_buffers);
   si_set_active_descriptors(sctx, si_sampler_and_image_descriptors_idx(sel->type),
                             sel->active_samplers_and_images);
}